CN109713488B

CN109713488B - Connector with a plurality of connectors

Info

Publication number: CN109713488B
Application number: CN201910151153.9A
Authority: CN
Inventors: 罗国发; 李晓云; 王伟
Original assignee: Shenzhen Hetai Intelligent Home Appliance Controller Co ltd
Current assignee: Shenzhen Hetai Intelligent Home Appliance Controller Co ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2023-12-08
Anticipated expiration: 2039-02-28
Also published as: CN109713488A

Abstract

The application provides a connector, which comprises a first connecting terminal, a second connecting terminal, a switching circuit and a control circuit. The first connecting terminal comprises a first contact pin, two second contact pins and a plurality of third contact pins which are arranged in parallel. The length of the first pin and the length of the second pin are both greater than the length of the third pin. The two second pins are symmetrical about the center axis. The second connecting terminal is matched with the first connecting terminal. The first connecting end of the switching circuit is electrically connected with the first contact pin, and the second connecting end of the switching circuit is electrically connected with a third contact pin. Or, the first connecting end of the switching circuit is electrically connected with a third contact pin, and the second connecting end of the switching circuit is electrically connected with the first contact pin. The control circuit is electrically connected with the switching circuit and a second contact pin respectively. The control circuit judges the insertion direction between the second connection terminal and the first connection terminal according to the voltage change of the detection input end, and generates a control instruction according to the insertion direction. The switching circuit receives the control instruction and performs switching according to the control instruction.

Description

Connector with a plurality of connectors

Technical Field

The present application relates to the field of electronic products, and in particular, to a connector.

Background

The connector plays a role of electric connection and is used in places needing on-off in the low-voltage electronic equipment. The method is divided into three types of board-to-board, wire-to-board and wire-to-wire. The mobile phone is charged at ordinary times, namely a wire-to-board connection. This is one of the most common electronic connectors in the home. If the connector is an electric cooker, a refrigerator, an air conditioner and other equipment, the power cord belongs to an electric connector, and is another connector.

For a long time, the insertion direction of the connector is fixed, no matter how many pins are connected, the purpose of the connector is to realize 1 to 1 corresponding connection, and in order to prevent misplacement of users, the structure of the connector can be designed to be incapable of being inserted without the insertion direction or the model of the connector is incapable of being inserted without the insertion direction.

Along with the progress of technology and the improvement of the requirements of people on user experience, connectors capable of being plugged in front and back begin to appear, but the connectors are required to be provided with two groups of power pins and grounding pins, occupy too many channels, and have low utilization rate of the channels.

Disclosure of Invention

Based on this, it is necessary to provide a connector for solving the problem that the existing connector with the function of positive and negative insertion occupies too many channels due to the arrangement of two groups of power pins and grounding pins, so that the channel utilization rate is low.

A connector, comprising:

the first connecting terminal comprises a first pin, two second pins and a plurality of third pins which are arranged in parallel, wherein the length of the first pin is larger than that of the third pin, the length of the second pin is larger than that of the third pin, and the two second pins are symmetrical about the center of the central axis;

The second connecting terminal is matched with the first connecting terminal;

the first connecting end of the switching circuit is electrically connected with the first pin, the second connecting end of the switching circuit is electrically connected with one third pin, or the first connecting end of the switching circuit is electrically connected with one third pin, and the second connecting end of the switching circuit is electrically connected with the first pin;

the output end of the control circuit is electrically connected with the input end of the switching circuit, the detection input end of the control circuit is respectively electrically connected with the third connection end of the switching circuit and one second contact pin, and the control circuit judges the inserting direction between the second connection terminal and the first connection terminal according to the voltage change of the detection input end and generates a control instruction according to the inserting direction;

the switching circuit receives the control instruction and switches according to the control instruction.

In one embodiment, the second connection terminal includes a first reed, two second reeds and a plurality of third reeds that are disposed in parallel, the first reed is in one-to-one correspondence with the first pin, the second reed is in one-to-one correspondence with the second pin, the third reed is in one-to-one correspondence with the third pin, and the lengths of the first reed, the second reed and the plurality of third reeds are the same, the first reed is electrically connected with one of the second reeds through a fifth resistor, and one of the plurality of third reeds is electrically connected with the other of the second reeds through a sixth resistor.

In one embodiment, the second connection terminal includes a first reed, two second reeds and a plurality of third reeds that are disposed in parallel, the first reed is in one-to-one correspondence with the first pin, the second reed is in one-to-one correspondence with the second pin, the third reed is in one-to-one correspondence with the third pin, the length of the first reed is greater than the length of the third reed, the length of the second reed is greater than the length of the third reed, the first reed is electrically connected with one of the second reeds through a fifth resistor, and one of the third reeds is electrically connected with the other of the second reeds through a sixth resistor.

In one embodiment, the control instructions include a switch control instruction and a hold control instruction;

if the control instruction received by the switching circuit is a switching control instruction, a first connecting end of the switching circuit is electrically connected with the first pin, a second connecting end of the switching circuit is electrically connected with one third pin, and the switching is performed, wherein the first connecting end is electrically connected with one third pin, and the second connecting end is electrically connected with the first pin; or, the first connection end of the switching circuit is electrically connected with one third pin, the second connection end of the switching circuit is electrically connected with the first pin, and the switching is performed, wherein the first connection end is electrically connected with the first pin, and the second connection end is electrically connected with one third pin;

And if the control instruction received by the switching circuit is a hold control instruction, the switching circuit does not act.

In one embodiment, the control circuit includes:

the output end of the singlechip is electrically connected with the input end of the switching circuit, the detection input end of the singlechip is respectively electrically connected with the third connecting end of the switching circuit and one second contact pin, and the singlechip judges the inserting direction between the second connecting terminal and the first connecting terminal according to the voltage change of the detection input end and generates a control instruction according to the inserting direction.

In one embodiment, the switching circuit includes:

the first input end of the first switching tube is electrically connected with the output end of the control circuit, and the second input end of the first switching tube is grounded;

the first connecting end of the relay is electrically connected with the output end of the first switching tube, the second connecting end of the relay is electrically connected with a power supply, the third connecting end of the relay is electrically connected with the first contact pin, and the fourth connecting end of the relay is electrically connected with one third contact pin;

One end of the first resistor is electrically connected with the third connecting end of the relay, and the other end of the first resistor is electrically connected with the detection input end of the singlechip;

and one end of the second resistor is electrically connected with the detection input end of the singlechip, and the other end of the second resistor is electrically connected with the third contact pin.

In one embodiment, the switching circuit includes:

the first input end of the second switching tube is electrically connected with a power supply, the second input end of the second switching tube is electrically connected with the output end of the singlechip, and the output end of the second switching tube is electrically connected with one third contact pin;

the first input end of the third switching tube is electrically connected with the output end of the singlechip, the second input end of the third switching tube is electrically connected with the second input end of the second switching tube, and the output end of the third switching tube is grounded;

the first input end of the fourth switching tube is electrically connected with the output end of the singlechip, and the output end of the fourth switching tube is grounded;

the first input end of the fifth switching tube is electrically connected with the second input end of the fourth switching tube, the second input end of the fifth switching tube is electrically connected with the first contact pin, and the output end of the fifth switching tube is grounded;

One end of the third resistor is electrically connected with the first input end of the fifth switching tube and the second input end of the fourth switching tube respectively, and the other end of the third resistor is electrically connected with the power supply;

the first input end of the sixth switching tube is electrically connected with the output end of the singlechip, and the output end of the sixth switching tube is grounded;

a first input end of the seventh switching tube is electrically connected with a second input end of the sixth switching tube, a second input end of the seventh switching tube is electrically connected with the power supply, and an output end of the seventh switching tube is electrically connected with the first contact pin;

one end of the fourth resistor is electrically connected with the first input end of the seventh switching tube and the second input end of the sixth switching tube respectively, and the other end of the fourth resistor is electrically connected with the power supply;

one end of the first resistor is electrically connected with the output end of the seventh switching tube, and the other end of the first resistor is electrically connected with the detection input end of the singlechip;

A connector, comprising:

the second connecting terminal comprises a first reed, two second reeds and a plurality of third reeds which are arranged in parallel, wherein the length of the first reed is longer than that of the third reed, the length of the second reed is longer than that of the third reed, and the two second reeds are symmetrical about the center of the central axis;

the first connecting terminal is matched with the second connecting terminal;

the first connecting end of the switching circuit is electrically connected with the first reed, the second connecting end of the switching circuit is electrically connected with one third reed, or the first connecting end of the switching circuit is electrically connected with one third reed, and the second connecting end of the switching circuit is electrically connected with the first reed;

the output end of the control circuit is electrically connected with the input end of the switching circuit, the detection input end of the control circuit is respectively electrically connected with the third connecting end of the switching circuit and one second reed, the control circuit judges the inserting direction between the second connecting terminal and the first connecting terminal according to the voltage change of the detection input end, and a control instruction is generated according to the inserting direction;

In one embodiment, the first connection terminal includes a first pin, two second pins and a plurality of third pins that are disposed in parallel, the first reed corresponds to the first pins one by one, the second reed corresponds to the second pins one by one, the third reed corresponds to the third pins one by one, the lengths of the first pin, the second pins and the plurality of third pins are the same, the first pin is electrically connected with one of the second pins through a fifth resistor, and one of the plurality of third pins is electrically connected with the other of the second pins through a sixth resistor.

In one embodiment, the first connection terminal includes a first pin, two second pins and a plurality of third pins that are disposed in parallel, the first reed corresponds to the first pins one by one, the second reed corresponds to the second pins one by one, the third reed corresponds to the third pins one by one, the length of the first pin is greater than the length of the third pins, the length of the second pin is greater than the length of the third pins, the first pin is electrically connected with one of the second pins through a fifth resistor, and one of the third pins is electrically connected with the other of the second pins through a sixth resistor.

if the control instruction received by the switching circuit is a switching control instruction, a first connecting end of the switching circuit is electrically connected with the first reed, a second connecting end of the switching circuit is electrically connected with one third reed, and the switching is performed, wherein the first connecting end is electrically connected with one third reed, and the second connecting end is electrically connected with the first reed; or, the first connecting end of the switching circuit is electrically connected with one third reed, the second connecting end of the switching circuit is electrically connected with the first reed, and the switching is performed, wherein the first connecting end is electrically connected with the first reed, and the second connecting end is electrically connected with one third reed;

In one embodiment, the control circuit includes:

the output end of the singlechip is electrically connected with the input end of the switching circuit, the detection input end of the singlechip is respectively electrically connected with the third connecting end of the switching circuit and one second reed, and the singlechip judges the inserting direction between the second connecting terminal and the first connecting terminal according to the voltage change of the detection input end and generates a control instruction according to the inserting direction.

In one embodiment, the switching circuit includes:

the first connecting end of the relay is electrically connected with the output end of the first switch tube, the second connecting end of the relay is electrically connected with a power supply, the third connecting end of the relay is electrically connected with the first reed, and the fourth connecting end of the relay is electrically connected with one third reed;

and one end of the second resistor is electrically connected with the detection input end of the singlechip, and the other end of the second resistor is electrically connected with the third reed.

In one embodiment, the switching circuit includes:

the first input end of the second switching tube is electrically connected with a power supply, the second input end of the second switching tube is electrically connected with the output end of the singlechip, and the output end of the second switching tube is electrically connected with one third reed;

the first input end of the fifth switching tube is electrically connected with the second input end of the fourth switching tube, the second input end of the fifth switching tube is electrically connected with the first reed, and the output end of the fifth switching tube is grounded;

a first input end of the seventh switching tube is electrically connected with a second input end of the sixth switching tube, a second input end of the seventh switching tube is electrically connected with the power supply, and an output end of the seventh switching tube is electrically connected with the first reed;

In one embodiment, the first connection terminal further includes:

the first contact pin, the two second contact pins and the plurality of third contact pins are all fixed on the base.

In one embodiment, the second connection terminal further includes:

and the first reed, the two second reeds and the plurality of third reeds are all fixed in the shell.

Compared with the prior art, the connector has the advantages that the first connecting terminal and the second connecting terminal can be enabled to be reduced in number of power supply pins and grounding pins on the premise of having positive and negative insertion functions through the matching of the control circuit and the switching circuit, and therefore the utilization rate of a signal channel is increased.

Drawings

Fig. 1 is a schematic structural diagram of a first connection terminal according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a second connection terminal according to an embodiment of the present application;

fig. 3 is a schematic diagram of a partial circuit connection of a second connection terminal according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a second connection terminal according to an embodiment of the present application;

fig. 5 is a schematic circuit diagram of a connector according to an embodiment of the application;

fig. 6 is a second circuit schematic diagram of the connector according to an embodiment of the application;

fig. 7 is a schematic diagram of a partial circuit connection of a first connection terminal according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a first connection terminal according to an embodiment of the present application;

fig. 9 is a third schematic circuit diagram of a connector according to an embodiment of the application;

fig. 10 is a circuit schematic diagram of a connector according to an embodiment of the application.

100 first connecting terminal 101 central axis 110 first pin

120 second pin 130 third pin 140 base

200 second connection terminal 201 fifth resistor 202 sixth resistor

210 first reed 220 second reed 230 third reed

240 outer casing

300 switch circuit 301 power 311 first switch tube

312 relay 313 first resistor 314 second resistor

321 second switching tube 322 third switching tube 323 fourth switching tube

324 fifth switch tube 325 third resistor 326 sixth switch tube

327 seventh switching tube 328 fourth resistor

400 control circuit 410 singlechip

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the application, which is therefore not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an embodiment of the present application provides a connector, which includes a first connection terminal 100, a second connection terminal 200, a switching circuit 300, and a control circuit 400. The first connection terminal 100 includes a first pin 110, two second pins 120, and a plurality of third pins 130 arranged in parallel. The length of the first pin 110 is greater than the length of the third pin 130. The second pin 120 has a length greater than the third pin 130. And two of the second pins 120 are centrally symmetrical about the central axis 101. The second connection terminal 200 is disposed to match the first connection terminal 100.

The first connection end of the switching circuit 300 is electrically connected to the first pin 110. The second connection end of the switching circuit 300 is electrically connected to one of the third pins 130; alternatively, the first connection terminal of the switching circuit 300 is electrically connected to one of the third pins 130, and the second connection terminal of the switching circuit 300 is electrically connected to the first pin 110.

An output of the control circuit 400 is electrically connected to an input of the switching circuit 300. The detection input terminal of the control circuit 400 is electrically connected to the third connection terminal of the switching circuit 300 and one of the second pins 120, respectively. The control circuit 400 determines the insertion direction between the second connection terminal 200 and the first connection terminal 100 according to the voltage variation of the detection input terminal, and generates a control command according to the insertion direction. The switching circuit 300 receives the control instruction and performs switching according to the control instruction.

It will be appreciated that the arrangement of the first pin 110, the two second pins 120, and the plurality of third pins 130 is not limited as long as they are guaranteed to be parallel to each other. In one embodiment, one third pin 130, one second pin 120, a plurality of third pins 130, one second pin 120, one first pin 110, and the like may be sequentially from top to bottom. Wherein, two second pins 120 are symmetrically arranged with respect to the central axis 101. In one embodiment, the position of the first pin 110 may be interchanged with one of the plurality of third pins 130, as long as parallelism with each other is ensured.

In one embodiment, the power pin and the ground pin are formed by arranging one of the first pin 110 and any one of the third pins 130 to cooperate; meanwhile, the second pins 120 with the detection function are matched, so that the number requirements of the power pins and the grounding pins in the connector can be reduced and the utilization rate of the rest third pins 130 can be increased on the premise of ensuring positive and negative insertion.

In one embodiment, the length relationship between the first pin 110 and the second pin 120 is not limited, as long as the lengths of both pins are ensured to be greater than the length of the third pin 130. In one embodiment, the first pin 110 and the second pin 120 may be provided to have the same length, and may be simultaneously brought into contact with the second connection terminal 200 in preference to the third pin 130. In one embodiment, the length of the first pin 110 may be set to be greater than the length of the second pin 120, or the length of the second pin 120 may be set to be greater than the length of the first pin 110, so that both may be contacted with the second connection terminal 200 in preference to the third pin 130.

The specific selection of the central axis 101 may be selected according to actual requirements. In one embodiment, the central axis 101 may be a central axis of the first connection terminal 100 in the insertion direction. In one embodiment, the central axis 101 may also be a central axis of all pins in the first connection terminal 100 along the insertion direction. In one embodiment, the second connection terminal 200 is matched with the first connection terminal 100 by: the second connection terminal 200 is insertedly connected to the first connection terminal 100, and performs data exchange.

In one embodiment, the control instructions include a switch control instruction and a hold control instruction. In one embodiment, if the control instruction received by the switching circuit 300 is a switching control instruction, a first connection end of the switching circuit 300 is electrically connected to the first pin 110, a second connection end of the switching circuit 300 is electrically connected to one of the third pins 130, and the first connection end is electrically connected to one of the third pins 130, and the second connection end is electrically connected to the first pin 110.

Alternatively, the first connection end of the switching circuit 300 is electrically connected to one of the third pins 130, the second connection end of the switching circuit 300 is electrically connected to the first pin 110, and the first connection end is electrically connected to the first pin 110, and the second connection end is electrically connected to one of the third pins 130. In one embodiment, if the control command received by the switching circuit 300 is a hold control command, the switching circuit 300 is not active. In one embodiment, the switching circuit inactivity means: and maintaining the current connection state.

It will be appreciated that the specific structure of the switching circuit 300 is not specifically limited, as long as it has the function of receiving the control command and making a corresponding switching action according to the control command. The specific structure of the switching circuit 300 can be selected according to actual requirements. In one embodiment, the switching circuit 300 may be a double pole double throw relay switch. In one embodiment, the switching circuit 300 may also be a conventional circuit configuration with switching functions.

In one embodiment, if the first connection end of the switching circuit 300 is a positive output end, the first pin 110 is a power pin, and the second connection end of the switching circuit 300 is a negative output end, one of the third pins 130 is a ground pin. In one embodiment, if the first connection end of the switching circuit 300 is a negative output end, the first pin 110 is a ground pin, and the second connection end of the switching circuit 300 is a positive output end, one of the third pins 130 is a power pin.

In one embodiment, specific outputs (i.e., positive output or negative output) of the first connection terminal and the second connection terminal of the switching circuit 300 may be switched according to the control command, so as to complete switching between the first pin 110 and the third pin 130 and the power pin and the ground pin. And further, the first connection terminal 100 only needs to be provided with a power pin and a ground pin, and the forward and reverse insertion function can be realized by the cooperation of the switching circuit 300, so that the utilization rate of the channel is increased.

It is understood that the specific structure of the control circuit 400 is not particularly limited, as long as it has a function of determining the insertion direction between the second connection terminal 200 and the first connection terminal 100 according to the voltage change of the detection input terminal, and generating a control command according to the insertion direction. The specific structure of the control circuit 400 can be selected according to actual requirements. In one embodiment, the control circuit 400 may be an MCU. In one embodiment, the control circuit 400 may also be a controller.

In this embodiment, by matching the control circuit 400 with the switching circuit 300, the first connection terminal 100 and the second connection terminal 200 may be matched with any one of the first pin 110 and the third pins 130 to form a power pin and a ground pin on the premise of having a positive and negative insertion function, which not only reduces the number of the power pins and the ground pins, but also greatly increases the utilization rate of the channel.

Referring to fig. 2 and 3, in one embodiment, the second connection terminal 200 includes a first reed 210, two second reeds 220, and a plurality of third reeds 230 arranged in parallel. The first spring leaves 210 are in one-to-one correspondence with the first pins 110. The second spring leaves 220 are in one-to-one correspondence with the second pins 120. The third spring leaves 230 are in one-to-one correspondence with the third pins 130. The first reed 210, the second reed 220, and the plurality of third reeds 230 have the same length. The first reed 210 is electrically connected to one of the second reeds 220 via a fifth resistor 201. One of the third reeds 230 of the plurality of third reeds 230 is electrically connected to the other second reed 220 through a sixth resistor 202.

In one embodiment, the first reed 210 and the plurality of third reeds 230 are each electrically connected to the nanosensor 203. In one embodiment, the nanosensor 203 can be a saliva detection sensor, or a sensor with other detection functions.

In one embodiment, the lengths of the first reed 210, the two second reeds 220, and the plurality of third reeds 230 are the same, so that the first pin 110 and the two second pins 120 are contacted with the corresponding first reed 210 and second reed 220, respectively, when the first connection terminal 100 is inserted into the second connection terminal 200. Thereby detecting the insertion direction between the first connection terminal 100 and the second connection terminal 200.

Referring to fig. 3 and 4, in one embodiment, the second connection terminal 200 includes a first reed 210, two second reeds 220, and a plurality of third reeds 230 arranged in parallel. The first spring leaves 210 are in one-to-one correspondence with the first pins 110. The second spring leaves 220 are in one-to-one correspondence with the second pins 120. The third spring leaves 230 are in one-to-one correspondence with the third pins 130. The length of the first reed 210 is greater than the length of the third reed 230. The second reed 220 has a length greater than the length of the third reed 230. The first reed 210 is electrically connected to one of the second reeds 220 via a fifth resistor 201. One of the third reeds 230 of the plurality of third reeds 230 is electrically connected to the other second reed 220 through a sixth resistor 202.

In one embodiment, the length of the first spring leaf 210 is greater than the length of the third spring leaf 230, and the length of the second spring leaf 220 is greater than the length of the third spring leaf 230, so that when the first connection terminal 100 and the second connection terminal 200 are inserted and connected, the first pin 110 and the two second pins 120 respectively contact with the corresponding first spring leaf 210 and the second spring leaf 220 first. Thereby detecting the insertion direction between the first connection terminal 100 and the second connection terminal 200.

Referring to fig. 5, in one embodiment, the control circuit 400 includes a single-chip microcomputer 410. The output end of the singlechip 410 is electrically connected with the input end of the switching circuit 300. The detection input end of the singlechip 410 is electrically connected with the third connection end of the switching circuit 300 and one of the second pins 120, respectively. The singlechip 410 determines an insertion direction between the second connection terminal 200 and the first connection terminal 100 according to the voltage change of the detection input terminal, and generates a control instruction according to the insertion direction. In one embodiment, the single-chip microcomputer 410 may be replaced with a controller or a processor.

In one embodiment, the switching circuit 300 includes a first switching tube 311, a relay 312, a first resistor 313, and a second resistor 314. A first input terminal of the first switching tube 311 is electrically connected to an output terminal of the control circuit 400. A second input end of the first switching tube 311 is grounded. A first connection terminal of the relay 312 is electrically connected to an output terminal of the first switching tube 311. A second connection of the relay 312 is electrically connected to the power supply 301 (VCC).

The third connection terminal of the relay 312 is electrically connected to the first pin 110. The fourth connection terminal of the relay 312 is electrically connected to one of the third pins 130. One end of the first resistor 313 is electrically connected to a third connection terminal of the relay 312. The other end of the first resistor 313 is electrically connected to the detection input end of the singlechip 410, and one end of the second resistor 314 is electrically connected to the detection input end of the singlechip 410. The other end of the second resistor 314 is electrically connected to the third pin 130.

In one embodiment, the first switching transistor 311 may be an NMOS transistor. In one embodiment, the first switching tube 311 may also be a PMOS tube. In one embodiment, the first resistor 313 and the second resistor 314 have different resistance values.

In one embodiment, the single chip microcomputer 410 (i.e. the control circuit 400) determines the insertion direction between the second connection terminal 200 and the first connection terminal 100 according to the voltage variation of the detection input end, and generates the control command according to the insertion direction. In one embodiment, if the voltage at the detection input terminal is vcc×r5/(r5+r6), it is determined that the second connection terminal 200 is not inserted into the first connection terminal 100, where the first pin 110 is a power pin, the ground pin is one of the third pins 130, and the remaining third pins 130 are used as signal channels. Wherein VCC is the voltage of the power supply 301, R5 is the second resistor 314, and R6 is the first resistor 313. In one embodiment, if the voltage at the detection input terminal is vcc×r6/(r5+r6), it is determined that the second connection terminal 200 is not inserted into the first connection terminal 100, and the first pin 110 is a ground pin (GND), and the power pin is one of the third pins 130.

In one embodiment, if the voltage at the detection input terminal is vcc×r5// r4/(r5// r4+r6), it is determined that the second connection terminal 200 is inserted into the first connection terminal 100 in the forward direction, and the first pin 110 is a power pin, one of the third pins 130 is a ground pin, the power direction is correct, and the relay 312 does not operate. Wherein R4 is the sixth resistor, and R5// R4 represents that R5 and R4 are connected in parallel.

In one embodiment, if the voltage at the detection input end is vcc×r6/(R5// r4+r6), it is determined that the second connection terminal 200 is reversely inserted into the first connection terminal 100, at this time, the first pin 110 is a ground pin (GND), one of the third pins 130 is a power pin, and if the power direction is wrong, the output end of the single chip microcomputer 410 outputs a high level (i.e. the single chip microcomputer 410 generates a control command), at this time, the first switching tube 311 is turned on, and the relay 312 is closed, so that the first pin 110 is switched from the ground pin to the power pin.

In one embodiment, if the voltage at the detection input end is vcc×r5// r3/(r5// r3+r6), it is determined that the second connection terminal 200 is reversely inserted into the first connection terminal 100, at this time, the first pin 110 is a power pin, one of the third pins 130 is a ground pin, and if the power direction is wrong, the output end of the single chip microcomputer 410 outputs a low level (i.e. the single chip microcomputer 410 generates a control command), at this time, the first switching tube 311 is turned off, and the relay 312 is turned off, so that the first pin 110 is switched from the power pin to the ground pin. Wherein R3 is the fifth resistor 201, and R5// R3 represents that R5 is connected in parallel with R3.

In one embodiment, if the voltage at the detection input terminal is vcc×r6/(R5// r3+r6), it is determined that the second connection terminal 200 is inserted into the first connection terminal 100 in the forward direction, and at this time, the first pin 110 is a ground pin, one of the third pins 130 is a power pin, the power direction is correct, and the relay 312 does not operate. Determining whether the first connection terminal 100 and the second connection terminal 200 are inserted or not and whether the direction of insertion is forward insertion or reverse insertion by using the voltage change detected by the detection input end of the singlechip 410, thereby determining whether the direction of the power supply is correct, and if so, the relay 312 does not act; if so, the power direction is switched correctly by the relay 312. Through the control mode, the forward and reverse insertion function can be realized only by setting one power pin and one grounding pin in the terminal, so that the utilization rate of a channel in the terminal is increased.

Referring to fig. 6, in one embodiment, the switching circuit 300 includes a second switching tube 321, a third switching tube 322, a fourth switching tube 323, a fifth switching tube 324, a third resistor 325, a sixth switching tube 326, a seventh switching tube 327, a fourth resistor 328, a first resistor 313, and a second resistor 314. A first input terminal of the second switching tube 321 is electrically connected to the power supply 301. A second input end of the second switch 321 is electrically connected to an output end of the singlechip 410. The output end of the second switching tube 321 is electrically connected to one of the third pins 130.

The first input end of the third switching tube 322 is electrically connected to the output end of the single-chip microcomputer 410. A second input terminal of the third switching tube 322 is electrically connected to a second input terminal of the second switching tube 321. The output end of the third switch tube 322 is grounded. The first input end of the fourth switching tube 323 is electrically connected with the output end of the singlechip 410. The output end of the fourth switching tube 323 is grounded. A first input of the fifth switching tube 324 is electrically connected to a second input of the fourth switching tube 323. A second input of the fifth switching tube 324 is electrically connected to the first pin 110. An output terminal of the fifth switching tube 324 is grounded.

One end of the third resistor 325 is electrically connected to the first input terminal of the fifth switching tube 324 and the second input terminal of the fourth switching tube 323, respectively. The other end of the third resistor 325 is electrically connected to the power supply 301. The first input end of the sixth switching tube 326 is electrically connected to the output end of the singlechip 410. The output end of the sixth switching tube 326 is grounded. The first input of the seventh switching tube 327 is electrically connected to the second input of the sixth switching tube 326. A second input terminal of the seventh switching tube 327 is electrically connected to the power supply 301. The output end of the seventh switching tube 327 is electrically connected to the first pin 110.

One end of the fourth resistor 328 is electrically connected to the first input terminal of the seventh switching tube 327 and the second input terminal of the sixth switching tube 326, respectively. The other end of the fourth resistor 328 is electrically connected to the power supply 301. One end of the first resistor 313 is electrically connected to the output end of the seventh switching tube 327. The other end of the first resistor 313 is electrically connected to the detection input end of the singlechip 410. One end of the second resistor 314 is electrically connected to the detection input end of the singlechip 410. The other end of the second resistor 314 is electrically connected to the third pin 130.

In one embodiment, the second switching tube 321, the third switching tube 322, the fourth switching tube 323, the fifth switching tube 324, the sixth switching tube 326 and the seventh switching tube 327 may be MOS tubes. In one embodiment, the first pin 110 is switched to be a power pin or a ground pin by using on and off of a MOS transistor.

In one embodiment, if the output end of the singlechip 410 is at a low level, the second switching tube 321 and the fifth switching tube 324 are turned on, the third switching tube 322 is turned off, the fourth switching tube 323, the sixth switching tube 326 and the seventh switching tube 327 are all turned off, one of the third pins 130 is a power pin, and the first pin 110 is a ground pin. If the output end of the singlechip 410 is at a high level, the third switch tube 322 and the seventh switch tube 327 are turned on, the second switch tube 321, the fourth switch tube 323, the fifth switch tube 324 and the sixth switch tube 326 are all turned off, one of the third pins 130 is a ground pin, and the first pin 110 is a power pin. The switching circuit built by the MOS tubes can realize the switching function.

Referring to fig. 4 and fig. 7 to fig. 9, an embodiment of the present application provides a connector, which includes a second connection terminal 200, a first connection terminal 100, a switching circuit 300, and a control circuit 400. The second connection terminal 200 includes a first reed 210, two second reeds 220, and a plurality of third reeds 230 arranged in parallel. The length of the first reed 210 is greater than the length of the third reed 230. The second reed 220 has a length longer than that of the third reed 230, and both the second reeds 220 are center-symmetrical with respect to the central axis 101. The first connection terminal 100 is disposed in a matching manner with the second connection terminal 200.

A first connection terminal of the switching circuit 300 is electrically connected to the first reed 210, and a second connection terminal of the switching circuit 300 is electrically connected to one of the third reeds 230; alternatively, the first connection terminal of the switching circuit 300 is electrically connected to one of the third reeds 230, and the second connection terminal of the switching circuit 300 is electrically connected to the first reed 210.

An output of the control circuit 400 is electrically connected to an input of the switching circuit 300. The detection input terminal of the control circuit 400 is electrically connected to the third connection terminal of the switching circuit 300 and one of the second reeds 220, respectively. The control circuit 400 determines the insertion direction between the second connection terminal 200 and the first connection terminal 100 according to the voltage variation of the detection input terminal, and generates a control command according to the insertion direction. The switching circuit 300 receives the control instruction and performs switching according to the control instruction.

It will be appreciated that the arrangement of the first reed 210, the two second reeds 220, and the plurality of third reeds 230 is not limited as long as they are guaranteed to be parallel to each other. In one embodiment, there may be one third reed 230, one second reed 220, a plurality of third reeds 230, one second reed 220, the first reed 210, and the like in order from top to bottom. Wherein two second reeds 220 are arranged symmetrically with respect to the center axis 101. In one embodiment, the position of the first reed 210 can also be interchanged with one of the plurality of third reeds 230, as long as parallelism with each other is ensured.

The specific selection of the central axis 101 may be selected according to actual requirements. In one embodiment, the central axis 101 may be a central axis of the second connection terminal 200 along the insertion direction. In one embodiment, the central axis 101 may also be a central axis of all pins in the second connection terminal 200 along the insertion direction. In one embodiment, the second connection terminal 200 is matched with the first connection terminal 100 by: the second connection terminal 200 is insertedly connected to the first connection terminal 100, and performs data exchange. In one embodiment, the specific structure of the switching circuit 300 may be the structure described in the above embodiment.

In one embodiment, if the first connection end of the switching circuit 300 is a positive output end, the first reed 210 is a power pin, and the second connection end of the switching circuit 300 is a negative output end, one of the third reeds 230 is a ground pin. In one embodiment, if the first connection end of the switching circuit 300 is a negative output end, the first reed 210 is a ground pin, and the second connection end of the switching circuit 300 is a positive output end, one of the third reeds 230 is a power pin.

In one embodiment, the control instructions include a switch control instruction and a hold control instruction. In one embodiment, if the control command received by the switching circuit 300 is a switching control command, the first connection end of the switching circuit 300 is electrically connected to the first reed 210, and the second connection end of the switching circuit 300 is electrically connected to one of the third reeds 230; alternatively, the first connection terminal is electrically connected to one of the third reeds 230, and the second connection terminal is electrically connected to the first reed 210.

Alternatively, the first connection terminal of the switching circuit 300 is electrically connected to one of the third reeds 230, and the second connection terminal of the switching circuit 300 is electrically connected to the first reed 210; alternatively, the first connection terminal is electrically connected to the first reed 210, and the second connection terminal is electrically connected to one of the third reeds 230. In one embodiment, if the control instruction received by the switching circuit is a hold control instruction, the switching circuit is inactive. In one embodiment, the switching circuit inactivity means: and maintaining the current connection state.

In one embodiment, specific outputs (i.e., positive output or negative output) of the first connection terminal and the second connection terminal of the switching circuit 300 may be switched according to the control command, so as to complete switching between the first reed 210 and the third reed 230 and the power pin and the ground pin. And further, the second connection terminal 200 only needs to be provided with a power pin and a ground pin, and the forward and reverse insertion function can be realized by the cooperation of the switching circuit 300, so that the utilization rate of the channel is increased.

Referring to fig. 7 and 8, in one embodiment, the first connection terminal 100 includes a first pin 110, two second pins 120, and a plurality of third pins 130 arranged in parallel. The first spring leaves 210 are in one-to-one correspondence with the first pins 110. The second spring leaves 220 are in one-to-one correspondence with the second pins 120. The third spring leaves 230 are in one-to-one correspondence with the third pins 130. The first pin 110, the second pin 120, and the plurality of third pins 130 have the same length. The first pin 110 is electrically connected to one of the second pins 120 through a fifth resistor 201. One of the third pins 130 of the plurality of third pins 130 is electrically connected to another of the second pins 120 through a sixth resistor 202.

In one embodiment, the first pin 110 and the plurality of third pins 130 are each electrically connected to the nanosensor 203. In one embodiment, the nanosensor 203 can be a saliva detection sensor, or a sensor with other detection functions.

In one embodiment, the lengths of the first pin 110, the two second pins 120, and the plurality of third pins 130 are the same, so that when the first connection terminal 100 is inserted into the second connection terminal 200, the first pin 110 and the two second pins 120 are respectively contacted with the first reed 210 and the second reed 220 corresponding thereto. Thereby detecting the insertion direction between the first connection terminal 100 and the second connection terminal 200.

In one embodiment, the first connection terminal 100 includes a first pin 110, two second pins 120, and a plurality of third pins 130 disposed in parallel. The first spring leaves 210 are in one-to-one correspondence with the first pins 110. The second spring leaves 220 are in one-to-one correspondence with the second pins 120. The third spring leaves 230 are in one-to-one correspondence with the third pins 130. The length of the first pin 110 is greater than the length of the third pin 130. The second pin 120 has a length greater than the third pin 130. The first pin 110 is electrically connected to one of the second pins 120 through a fifth resistor 201. One of the third pins 130 of the plurality of third pins 130 is electrically connected to another of the second pins 120 through a sixth resistor 202.

In one embodiment, the length of the first pin 110 is greater than the length of the third pin 130, and the length of the second pin 120 is greater than the length of the third pin 130, so that when the first connection terminal 100 and the second connection terminal 200 are inserted and connected, the first pin 110 and the two second pins 120 are respectively contacted with the corresponding first spring 210 and the second spring 220 first. Thereby detecting the insertion direction between the first connection terminal 100 and the second connection terminal 200.

Referring to fig. 9, in one embodiment, the control circuit 400 includes a single-chip microcomputer 410. The output end of the singlechip 410 is electrically connected with the input end of the switching circuit 300. The detection input end of the singlechip 410 is electrically connected with the third connection end of the switching circuit 300 and one of the second reeds 220, respectively. The singlechip 410 determines an insertion direction between the second connection terminal 200 and the first connection terminal 100 according to the voltage change of the detection input terminal, and generates a control instruction according to the insertion direction. In one embodiment, the single-chip microcomputer 410 may be replaced with a controller or a processor.

In one embodiment, the switching circuit 300 includes: a first switching tube 311, a relay 312, a first resistor 313, and a second resistor 314. A first input terminal of the first switching tube 311 is electrically connected to an output terminal of the control circuit 400. A second input end of the first switch tube 311 is grounded; a first connection terminal of the relay 312 is electrically connected to an output terminal of the first switching tube 311. A second connection of the relay 312 is electrically connected to the power supply 301.

The third connection terminal of the relay 312 is electrically connected to the first reed 210. The fourth connection terminal of the relay 312 is electrically connected to one of the third springs 230. One end of the first resistor 313 is electrically connected to a third connection terminal of the relay 312. The other end of the first resistor 313 is electrically connected to the detection input end of the singlechip 410. One end of the second resistor 314 is electrically connected to the detection input end of the singlechip 410. The other end of the second resistor 314 is electrically connected to the third reed 230.

In one embodiment, the single chip microcomputer 410 (i.e. the control circuit 400) determines the insertion direction between the second connection terminal 200 and the first connection terminal 100 according to the voltage variation of the detection input end, and generates the control command according to the insertion direction. In one embodiment, if the voltage at the detection input terminal is vcc×r5/(r5+r6), it is determined that the second connection terminal 200 is not inserted into the first connection terminal 100, and the first reed 210 is a power pin, the ground pin is one of the plurality of third reeds 230, and the remaining plurality of third reeds 230 are used as signal channels. Wherein VCC is the voltage of the power supply 301, R5 is the second resistor 314, and R6 is the first resistor 313. In one embodiment, if the voltage at the detection input terminal is vcc×r6/(r5+r6), it is determined that the second connection terminal 200 is not inserted into the first connection terminal 100, and the first reed 210 is a ground pin (GND), and the power pin is one of the third reeds 230.

In one embodiment, if the voltage at the detection input terminal is vcc×r5// r4/(r5// r4+r6), it is determined that the second connection terminal 200 is inserted into the first connection terminal 100 in the forward direction, and at this time, the first reed 210 is a power pin, one of the third reeds 230 is a ground pin, the power direction is correct, and the relay 312 does not operate. Wherein R4 is the sixth resistor, and R5// R4 represents that R5 and R4 are connected in parallel.

In one embodiment, if the voltage at the detection input end is vcc×r6/(R5// r4+r6), it is determined that the second connection terminal 200 is reversely inserted into the first connection terminal 100, and the first reed 210 is a ground pin (GND), one of the plurality of third reeds 230 is a power pin, and the power direction is wrong, the output end of the singlechip 410 outputs a high level (i.e. the singlechip 410 generates a control command), and at this time, the first switching tube 311 is turned on, and the relay 312 is engaged, so that the first reed 210 is switched from the ground pin to the power pin.

In one embodiment, if the voltage at the detection input end is vcc×r5// r3/(r5// r3+r6), it is determined that the second connection terminal 200 is reversely inserted into the first connection terminal 100, at this time, the first reed 210 is a power pin, one of the third reeds 230 is a ground pin, and if the power direction is wrong, the output end of the singlechip 410 outputs a low level (i.e. the singlechip 410 generates a control command), at this time, the first switching tube 311 is turned off, and the relay 312 is turned off, so that the first reed 210 is switched from the power pin to the ground pin. Wherein R3 is the fifth resistor 201, and R5// R3 represents that R5 is connected in parallel with R3.

In one embodiment, if the voltage at the detection input terminal is vcc×r6/(R5// r3+r6), it is determined that the second connection terminal 200 is inserted into the first connection terminal 100 in the forward direction, and at this time, the first reed 210 is a ground pin, one of the third reeds 230 is a power pin, the power direction is correct, and the relay 312 does not operate. Determining whether the first connection terminal 100 and the second connection terminal 200 are inserted or not and whether the direction of insertion is forward insertion or reverse insertion by using the voltage change detected by the detection input end of the singlechip 410, thereby determining whether the direction of the power supply is correct, and if so, the relay 312 does not act; if so, the power direction is switched correctly by the relay 312. Through the control mode, the forward and reverse insertion function can be realized only by setting one power pin and one grounding pin in the terminal, so that the utilization rate of a channel in the terminal is increased.

Referring to fig. 10, in one embodiment, the switching circuit 300 includes a second switching tube 321, a third switching tube 322, a fourth switching tube 323, a fifth switching tube 324, a third resistor 325, a sixth switching tube 326, a seventh switching tube 327, a fourth resistor 328, a first resistor 313, and a second resistor 314. A first input terminal of the second switching tube 321 is electrically connected to the power supply 301. A second input end of the second switch 321 is electrically connected to an output end of the singlechip 410. The output end of the second switching tube 321 is electrically connected to one of the third reeds 230.

The first input end of the third switch 322 is electrically connected to the output end of the single-chip microcomputer 410. A second input terminal of the third switching tube 322 is electrically connected to a second input terminal of the second switching tube 321. The output end of the third switch tube 322 is grounded. The first input end of the fourth switching tube 323 is electrically connected with the output end of the singlechip 410. The output end of the fourth switching tube 323 is grounded. A first input of the fifth switching tube 324 is electrically connected to a second input of the fourth switching tube 323. A second input terminal of the fifth switching tube 324 is electrically connected to the first reed 210. An output terminal of the fifth switching tube 324 is grounded.

One end of the third resistor 325 is electrically connected to the first input terminal of the fifth switching tube 324 and the second input terminal of the fourth switching tube 323, respectively. The other end of the third resistor 325 is electrically connected to the power supply 301. The first input end of the sixth switching tube 326 is electrically connected to the output end of the singlechip 410. The output end of the sixth switching tube 326 is grounded. The first input of the seventh switching tube 327 is electrically connected to the second input of the sixth switching tube 326. A second input terminal of the seventh switching tube 327 is electrically connected to the power supply 301. The output end of the seventh switching tube 327 is electrically connected to the first reed 210.

One end of the fourth resistor 328 is electrically connected to the first input terminal of the seventh switching tube 327 and the second input terminal of the sixth switching tube 326, respectively. The other end of the fourth resistor 328 is electrically connected to the power supply 301. One end of the first resistor 313 is electrically connected to the output end of the seventh switching tube 327. The other end of the first resistor 313 is electrically connected to the detection input end of the singlechip 410. One end of the second resistor 314 is electrically connected to the detection input end of the singlechip 410. The other end of the second resistor 314 is electrically connected to the third reed 230.

In one embodiment, the specific structures of the second switching tube 321, the third switching tube 322, the fourth switching tube 323, the fifth switching tube 324, the sixth switching tube 326 and the seventh switching tube 327 may be the structures described in the above embodiments.

In one embodiment, if the output end of the singlechip 410 is at a low level, the second switching tube 321 and the fifth switching tube 324 are turned on, the third switching tube 322 is turned off, the fourth switching tube 323, the sixth switching tube 326 and the seventh switching tube 327 are all turned off, one of the third reeds 230 is a power pin, and the first reeds 210 is a ground pin. If the output end of the singlechip 410 is at a high level, the third switching tube 322 and the seventh switching tube 327 are turned on, the second switching tube 321, the fourth switching tube 323, the fifth switching tube 324 and the sixth switching tube 326 are all turned off, one of the third reeds 230 is a ground pin, and the first reed 210 is a power pin. The switching circuit built by the MOS tubes can realize the switching function.

In one embodiment, the first connection terminal 100 further includes a base 140. The first pin 110, the two second pins 120, and the plurality of third pins 130 are all fixed to the base 140. In one embodiment, the material of the base 140 is not limited, as long as the first pin 110, the two second pins 120, and the plurality of third pins 130 are all secured to the base 140. In one embodiment, the base 140 may be made of plastic. In one embodiment, the base 140 may also be made of rubber.

In one embodiment, the second connection terminal 200 further includes a housing 240. The first reed 210, the two second reeds 220, and the plurality of third reeds 230 are all fixed within the housing 240. In one embodiment, the material of the housing 240 is not limited, as long as the first pin 110, the two second pins 120, and the plurality of third pins 130 are secured to the base 140. In one embodiment, the material of the housing 240 may be plastic. In one embodiment, the material of the housing 240 may also be rubber.

In summary, the present application can reduce the number of internal power pins and ground pins on the premise of having the positive and negative insertion function of the first connection terminal 100 and the second connection terminal 200 by matching the control circuit 400 and the switching circuit 300, thereby increasing the utilization rate of the signal channel.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A connector, comprising:

The second connecting terminal is matched with the first connecting terminal;

the switching circuit receives the control instruction and performs switching according to the control instruction;

wherein the control circuit includes: the output end of the singlechip is electrically connected with the input end of the switching circuit, the detection input end of the singlechip is respectively electrically connected with the third connecting end of the switching circuit and one second contact pin, and the singlechip judges the inserting direction between the second connecting terminal and the first connecting terminal according to the voltage change of the detection input end and generates a control instruction according to the inserting direction;

The switching circuit includes: the first input end of the first switching tube is electrically connected with the output end of the control circuit, and the second input end of the first switching tube is grounded; the first connecting end of the relay is electrically connected with the output end of the first switching tube, the second connecting end of the relay is electrically connected with a power supply, the third connecting end of the relay is electrically connected with the first contact pin, and the fourth connecting end of the relay is electrically connected with one third contact pin; one end of the first resistor is electrically connected with the third connecting end of the relay, and the other end of the first resistor is electrically connected with the detection input end of the singlechip; and one end of the second resistor is electrically connected with the detection input end of the singlechip, and the other end of the second resistor is electrically connected with the third contact pin.

2. The connector according to claim 1, wherein the second connection terminal includes a first reed, two second reeds, and a plurality of third reeds arranged in parallel, the first reed is in one-to-one correspondence with the first pin, the second reed is in one-to-one correspondence with the second pin, the third reed is in one-to-one correspondence with the third pin, and lengths of the first reed, the second reed, and the plurality of third reeds are the same, the first reed is electrically connected with one of the second reeds through a fifth resistor, and one of the plurality of third reeds is electrically connected with the other of the second reeds through a sixth resistor.

3. The connector according to claim 1, wherein the second connection terminal includes a first reed, two second reeds, and a plurality of third reeds arranged in parallel, the first reed is in one-to-one correspondence with the first pin, the second reed is in one-to-one correspondence with the second pin, the third reed is in one-to-one correspondence with the third pin, and the length of the first reed is greater than the length of the third reed, the length of the second reed is greater than the length of the third reed, the first reed is electrically connected with one of the second reeds through a fifth resistor, and one of the third reeds is electrically connected with the other of the second reeds through a sixth resistor.

4. The connector of claim 1, wherein the control instructions include a switch control instruction and a hold control instruction;

5. The connector of claim 1, wherein the switching circuit comprises:

6. A connector, comprising:

the first connecting terminal is matched with the second connecting terminal;

wherein the control circuit includes: the output end of the singlechip is electrically connected with the input end of the switching circuit, the detection input end of the singlechip is respectively electrically connected with the third connecting end of the switching circuit and one second reed, and the singlechip judges the inserting direction between the second connecting terminal and the first connecting terminal according to the voltage change of the detection input end and generates a control instruction according to the inserting direction;

the switching circuit includes: the first input end of the first switching tube is electrically connected with the output end of the control circuit, and the second input end of the first switching tube is grounded; the first connecting end of the relay is electrically connected with the output end of the first switch tube, the second connecting end of the relay is electrically connected with a power supply, the third connecting end of the relay is electrically connected with the first reed, and the fourth connecting end of the relay is electrically connected with one third reed; one end of the first resistor is electrically connected with the third connecting end of the relay, and the other end of the first resistor is electrically connected with the detection input end of the singlechip; and one end of the second resistor is electrically connected with the detection input end of the singlechip, and the other end of the second resistor is electrically connected with the third reed.

7. The connector of claim 6, wherein the first connection terminal includes a first pin, two second pins and a plurality of third pins arranged in parallel, the first reed is in one-to-one correspondence with the first pin, the second reed is in one-to-one correspondence with the second pin, the third reed is in one-to-one correspondence with the third pin, and the lengths of the first pin, the second pin and the plurality of third pins are the same, the first pin is electrically connected with one of the second pins through a fifth resistor, and one of the plurality of third pins is electrically connected with the other of the second pins through a sixth resistor.

8. The connector of claim 6, wherein the first connection terminal includes a first pin, two second pins and a plurality of third pins arranged in parallel, the first reed is in one-to-one correspondence with the first pin, the second reed is in one-to-one correspondence with the second pin, the third reed is in one-to-one correspondence with the third pin, the length of the first pin is greater than the length of the third pin, the length of the second pin is greater than the length of the third pin, the first pin is electrically connected with one of the second pins through a fifth resistor, and one of the third pins is electrically connected with the other of the second pins through a sixth resistor.

9. The connector of claim 6, wherein the control instructions include a switch control instruction and a hold control instruction;

10. The connector of claim 6, wherein the switching circuit comprises:

11. The connector according to claim 1 or 7 or 8, wherein the first connection terminal further comprises:

12. The connector according to claim 2 or 3 or 6, wherein the second connection terminal further comprises: