CN107123879B - Switch joint with reliable connection and cooker - Google Patents

Abstract

The invention discloses a switch joint with reliable connection and a pot. The switch connector comprises a plug and a socket; the plug comprises a plug fixing seat and at least one upper connecting rod fixed on the plug fixing seat; the socket comprises a socket panel with a jack corresponding to the lower end of the upper connecting rod, a sealing pad with a slotted hole arranged on the lower side surface of the socket panel, and a socket box arranged below the sealing pad; the lower connecting rods are arranged below the slotted holes and can be axially and movably connected to the bottom of the socket box through elastic structures, so that the upper end face of the upper end of each lower connecting rod is in contact connection with the lower end face of the lower end of one of the upper connecting rods when the plug is connected with the socket. The switch connector solves the substantial defects of poor contact and inconvenient plugging operation in the prior art, and has the advantages of reliable connection, convenient operation and reliable use by the following aspects.

Description

Connect reliable switch joints and pots

technical field

The invention relates to the field of household appliances, in particular to a joint switch with reliable connection and a cooker with the joint switch.

Background technique

There are more and more types of household appliances such as pots, including rice cookers, electric saucepans, electric pressure cookers, electric fryers, etc. These pots all have split lids and bodies, and most of them need to be installed on the lid Detecting elements such as temperature sensors and pressure sensors are used to detect the temperature or pressure during the cooking process of the pot as a condition for controlling the cooking of the pot. Detecting elements such as a temperature sensor and a pressure sensor arranged on the pot cover need to be electrically connected with the control circuit board on the body by means of a joint switch.

Chinese patent application number CN2012104305847 provides a socket, including a box body with jacks and flat contact pieces, two contact pieces are correspondingly arranged in each jack, at least one contact piece in the two contact pieces is connected with the box body Surface contact springs are arranged between them, and the preferred structure is that surface contact springs are arranged between the two contact pieces and the box body. However, the plug of this socket is in side contact with the two contact pieces, and there are at least the following defects: to ensure good contact between the plug and the contact pieces, a surface contact spring is required to provide a large elastic force, otherwise poor contact will occur; If the clamping force between the contact pieces is large, the plug will be clamped between the two contact pieces, resulting in inconvenient plugging and unplugging operations, and after a long period of use, the contact piece itself will be deformed or oxides will be produced on the surface, resulting in a gap between it and the plug. Indirect contact is poor, so the reliability is poor.

Contents of the invention

The technical problem to be solved by the present invention is to provide a joint switch with reliable connection and a cooker with the joint switch.

The present invention is realized by the following technical solutions: a connector switch with reliable connection, including a plug 2 and a socket 3 that cooperate with each other; The upper connecting rod 23 fixed on the plug holder 21;

The socket 3 comprises: a socket panel 30 having a socket 300 corresponding to the lower end of the upper link 23, a gasket 31 arranged on the lower side of the socket panel 30, and a slot hole corresponding to the socket 300 on the gasket 31 311; the socket box 32 located at the bottom of the gasket 31; the lower connecting rod 33 located below the slot hole 311, the lower connecting rod 33 can be axially movably connected to the bottom of the socket box 32 through an elastic structure, so that the plug 2 and the socket 3 When connected, the upper end surface of the upper end of each lower link 33 is in contact with the lower end surface of the lower end of one of the upper connecting rods 23 .

In a preferred embodiment, the elastic structure includes a guide portion 321 disposed at the bottom of the socket box 32 , an elastic portion 34 sleeved on the lower link 33 , and the lower end of the lower link 33 is disposed in the guide portion 321 .

In a preferred embodiment, a limiting portion 35 is provided below the guide portion 321 , and a limiting slot 332 matching the limiting portion 35 is provided at the lower end of the lower link 33 .

In a preferred embodiment, a drainage groove 36 is provided at the bottom of the socket box 32 , and the drainage inlet position of the drainage groove 36 is lower than the upper surface of the guide part 321 .

In a preferred embodiment, the upper end of the lower connecting rod 33 has a water-guiding end portion 331 , and the cross-section of the water-guiding end portion 331 is larger than that of the body of the lower connecting rod 33 .

In a preferred embodiment, the water guiding end 331 is conical.

In a preferred embodiment, the shape of the slot 311 is a cross.

In a preferred embodiment, the insertion hole 300 has a chamfered structure.

Correspondingly, the present invention discloses a pot, which includes a base 11 with a heating device, a pot body 12 disposed on the base 11, a pot liner disposed in the pot body 12, and a pot cover closed on the upper end surface of the pot body 12. 13. It also includes a joint switch with reliable connection as described above, and the joint switch includes a plug 2 arranged on the pot cover 13 and a socket 3 arranged on the pot body 12 .

In a preferred embodiment, the upper end surface of the pot body 12 is provided with an inclined boss 121 protruding upwards, the socket 3 is disposed on the boss 121 , and the socket panel 30 is protruded on the boss 121 .

The joint switch proposed by the present invention solves the substantive defects of poor contact and inconvenient plug-in operation in the prior art, and realizes the advantages of reliable connection, convenient operation and reliable use through the following aspects:

1. The lower end surface of the upper link of the plug and the upper end surface of the lower link of the socket are in frontal contact, and the elastic structure of the lower link provides an upward rebound force to ensure sufficient contact between the two to improve the reliability of the connection; Moreover, when the plug and the socket are in a connected state, since the upper connecting rod is only subjected to the upward rebound force of the lower connecting rod, when the lid and the pot body are separated or closed, the operation of the socket between the plug and the socket is smooth, improving the user experience. user experience.

2. The elastic structure of the lower link provides a certain telescopic stroke range for the lower link. Within the telescopic stroke range of the lower link, it can be matched with upper links of different lengths, so that the socket can be used with the upper links of different lengths. When the plugs are used together, they all have better connection performance, thereby improving the applicability and use occasions of the connector switch.

3. Improve the waterproof performance of the joint switch through three aspects to ensure the reliability of the joint switch. One is that a gasket is provided on the lower side of the socket panel, and the gasket can basically prevent water and foreign matter from entering the socket; the other is that the upper end of the lower connecting rod has a conical water-guiding end, and the cross-section of the water-guiding end is larger , when the plug is inserted into the socket, the water guide end can guide the liquid that may be brought into the socket by the upper link to the bottom of the socket box, so that it will not flow down along the lower link; Drains are provided to drain away any liquid that may enter the outlet box.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a pot.

Fig. 2 is a schematic structural view of the pot cover.

Fig. 3 is a schematic diagram of a partially cutaway structure of Fig. 2 along the G-G direction.

FIG. 4 is a partially enlarged schematic view of FIG. 3 .

Fig. 5 is a schematic structural view of the pot body.

FIG. 6 is a schematic diagram of a partially cutaway structure of FIG. 5 along the F-F direction.

FIG. 7 is a partially enlarged schematic view of FIG. 6 .

Fig. 8 is a partially cut-away structural schematic diagram of the pot.

FIG. 9 is an enlarged schematic view of FIG. 8 .

Figure 10 is a schematic structural view of the lower link.

Figure 11 is a schematic structural view of the gasket.

The numbers in the figure are as follows: base 11, pot body 12, boss 121, pot cover 13, handle 14, handle connecting part 15, plug 2, plug holder 21, accommodating cavity 22, upper connecting rod 23, socket 3, socket panel 30, socket 300, gasket 31, slot 311, socket box 32, guide part 321, lower link 33, water guide end 331, limit card slot 332, elastic part 34, limit part 35, drainage groove 36, the first wire 4, the second wire 5

Detailed ways

As shown in Fig. 1, the pot includes a base 11 with a heating device, a pot body 12 arranged on the base 11, a pot liner arranged in the pot body 12, and a pot cover 13 covering the upper end of the pot body 12. The lid 13 has a handle 14 . And, between the pot cover 13 and the pot shell 12, there is a joint switch for realizing that the electronic components in the pot cover 13 are electrically connected with the control circuit board in the pot shell 12, and the joint switch includes a plug arranged on the pot cover 13 And the socket that is arranged on the pot body 12, this joint switch connection is reliable thereby can increase the reliability and the service life of pot.

As shown in FIG. 2 , FIG. 3 and FIG. 4 , the pot cover 13 is provided with a handle 14 with a handle connecting portion 15 , and the plug 2 is arranged on the lower end surface of the handle connecting portion 15 . The plug 2 includes a plug fixing seat 21 having a receiving chamber 22, and at least one upper connecting rod 23 fixed on the plug fixing seat 21 is arranged in the receiving chamber 22, and the upper end of the upper connecting rod 23 passes through the first wire 4 It is electrically connected with the electronic components arranged in the pot cover 13 .

As shown in Fig. 5, Fig. 6 and Fig. 7, the upper end surface of the pot body 12 is annular, and the upper end face of the pot body 12 is provided with a sloped and upwardly protruding boss 121, and the socket 3 is arranged on the boss 121 superior. Specifically, the socket 3 includes: a socket panel 30 protruding from the boss 121, the socket panel 30 has a socket 300 corresponding to the lower end of the upper link 23, and the socket 300 has a convenient upper link 23 Inserted chamfering structure; the gasket 31 attached to the lower side of the socket panel 30, the gasket 31 is used to prevent foreign matter such as water and dust from entering the socket 3 through the jack 300, and the gasket 31 is provided with The slot hole 311 corresponding to the lower end of the upper link 23 (as shown in Figure 11), the slot hole 311 is best shaped as a cross; the socket box 32 located under the gasket 31 has a At least one guide part 321, a lower link 33 is sleeved in each guide part 321, and an elastic part 34 is sleeved on the lower link 33, (see FIG. 10 ) the upper end of the lower link 33 It has a water guide end 331, the water guide end 331 is preferably conical, and the lower end of the lower connecting rod 33 is provided with a limit card slot 332 formed by a sudden change in size (increase or decrease); it is located on the guide part 321 below the limiting portion 35; and each lower connecting rod 33 is electrically connected to the control circuit board in the pot body 12 through the second wire 5 respectively.

In a typical embodiment: the plug 2 has two upper links 23 that are electrically separated from each other, and the socket 3 also has two lower links 33 that are electrically separated from each other, and each upper link 23 can be connected to one of the lower links respectively. The connecting rod 33 is electrically connected.

In addition, the elastic part 34 is preferably a spring, the upper end of the spring is limited by the water guide end 331 of the lower link 33, and the lower end of the spring can resist the upper end of the guide part 321, the lower end of the guide part 321 or On the limiting part 35. When the plug 2 is separated from the socket 3 , as shown in FIG. 7 , the upper end of the elastic portion 34 is in contact with the lower side of the water-guiding end portion 331 , and the limiting slot 332 is also separated from the limiting portion 35 .

The working principle of the tap switch is further described in conjunction with FIG. 8 and FIG. 9 . When the pot cover 13 is closed on the upper end surface of the pot body 12, after the upper connecting rod 23 passes through the slot 311 on the gasket 31 from the jack 300 of the socket panel 30, it connects with the water guide end at the upper end of the lower connecting rod 33. The upper end surface of the upper part 331 is in contact with each other, and exerts a downward force on the lower link 33, so that the lower link 33 moves downward until the limit card groove 332 touches the limit part 35. At this time, the plug fixing seat 21 of the plug 2 The lower end surface is also just attached to the boss 121 of the pot body 12 . During the downward movement of the lower link 33, the elastic part 34 is compressed to generate an upward reaction force on the water guide end 331, and the reaction force makes the upper end surface of the water guide end 331 contact with the lower end of the upper link 23. The close contact between the two end faces ensures the reliability of the connection between the plug 2 and the socket 3 . On the contrary, when the pot cover 13 is separated from the pot body 12, the upper connecting rod 23 can be easily disengaged from the socket 3 as the pot cover 13 moves upward.

In addition, during the use of the joint switch, although the gasket 31 can basically block water and foreign matter from entering the socket 3 through the jack 300, when the plug 2 is inserted into the socket 3, the upper connecting rod 23 may still release liquids such as water. It is brought into the socket 3 through the slot hole 311 of the gasket 31 . For this reason, the present invention improves the socket 3 from two aspects: one is that the upper end of the lower connecting rod 33 is provided with a conical water-guiding end 331, and the section of the water-guiding end 331 is much larger than that of the lower connecting rod 33 body section, so that the liquid brought in by the upper connecting rod 23 flows to the bottom of the socket box 32 through the water guide end 331, and will not flow down along the lower connecting rod 33; A drainage groove 36 is provided, and the drainage inlet position of the drainage groove 36 is lower than the upper end surface of the guide part 321, thereby ensuring that liquids such as water can be smoothly discharged from the drainage inlet through the drainage groove 36, thereby further improving the working reliability of the switch joint.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (9)

1. A joint switch with reliable connection, including a plug (2) and a socket (3) that cooperate with each other, characterized in that: The plug (2) includes a plug fixing seat (21) with a receiving cavity (22), and at least one upper link (23) fixed on the plug fixing seat (21) is arranged in the receiving cavity (22); The socket (3) includes: a socket panel (30) with a socket (300) corresponding to the lower end of the upper link (23); a gasket (31) arranged on the lower side of the socket panel (30), the seal Slotted holes (311) are provided on the mat (31) corresponding to the jacks (300); the socket box (32) is located under the gasket (31), and the bottom of the socket box (32) is provided with a guide part (321) and position The drain groove (36) lower than the guide part (321); the lower connecting rod (33) located below the slot hole (311), the top of the lower connecting rod (33) has a water guide with a section larger than the body of the lower connecting rod (33) The end part (331), the lower end of the lower connecting rod (33) is sleeved with an elastic part (34), which can move axially and be set in the guide part (321), so that the plug (2) can conduct water when it is inserted into the socket (3) The upper end surface of the end portion (331) is electrically connected to the lower end surface of the upper connecting rod (23) through elastic abutment. 2. The joint switch with reliable connection according to claim 1, characterized in that: a limit part (35) is provided under the guide part (321), and a limit part (35) is provided at the lower end of the lower link (33). ) matching limit card slot (332). 3. The joint switch with reliable connection according to claim 1, characterized in that: the water guiding end (331) is conical. 4. The joint switch with reliable connection according to claim 1, characterized in that: the shape of the slot (311) is cross. 5. The joint switch with reliable connection according to claim 1, characterized in that: the socket (300) has a chamfered structure. 6. The joint switch with reliable connection according to claim 1, characterized in that: the plug (2) has two upper connecting rods (23) that are electrically separated from each other, and the socket (3) also has two upper connecting rods (23) that are electrically separated from each other. The lower connecting rods (33), when the plug (2) is inserted into the socket (3), each upper connecting rod (23) is electrically connected to one of the lower connecting rods (33). 7. The joint switch with reliable connection according to claim 1, characterized in that: the elastic part (34) adopts a spring, and the spring is sleeved on the lower end of the lower connecting rod (33) and is located between the water guide end (331) and the guide part (321). 8. A pot, including a base (11) with a heating device, a pot body (12) set on the base (11), a pot liner set in the pot body (12) and a lid on the pot body (12) ) The pot cover (13) on the upper end surface, which is characterized in that it also includes a joint switch with reliable connection according to any one of claims 1-7, wherein the plug (2) is set on the pot cover (13) and the socket (3) Correspondingly be arranged on the pot body (12). 9. The pot according to claim 8, characterized in that: the upper surface of the pot body (12) is provided with a boss (121) with a slope and protruding upwards, and the socket (3) is set on the boss (121) , and the socket panel (30) is protruded on the boss (121).

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