KR102154359B1 - Apparatus connecting a cable - Google Patents

Abstract

The present invention relates to a cable connection device, in which a circuit for receiving a signal through a cable and a signal terminal connecting the circuit and the cable are built-in, and a part is opened so that the cable can be connected to the signal terminal ; And a cover covering an open part of the case so as to prevent foreign matters from flowing into the case when the cable is not connected to the signal terminal, wherein the cover covers the open part of the case. In this case, a cable connection comprising a button for inputting a switching signal by the user and a switch terminal connected to the circuit or the signal terminal according to an operation of the button so that a switching signal can be transmitted according to the user's intention The device starts up.

Description

Cable connection device {APPARATUS CONNECTING A CABLE}

The present invention relates to a cable connection device, and more particularly, to a cable connection device that can be used as a means for transmitting a switching signal a cover used to prevent the inflow of foreign matter when the cable is not connected.

Today, in various technical fields, cables are used to receive power or to send and receive signals for data communication.

The end of such a cable is connected to a cable connection device, and a representative method is a circuit 10 and a circuit 10 and a cable C that receive and process a signal through a cable C, as shown in FIG. It is connected in a form in which the cable C is inserted into the case 1 in which the signal terminal 20 for connection is embedded.

In this way, when the cable (C) is connected to the cable connection device, foreign matter enters the case (1) when the user disconnects the cable (C) from the case (1) and disconnects the signal terminal (20). Can occur.

In order to solve this problem, a cover 2 is provided to cover a part of the open case 1 so that the cable C can be connected to the signal terminal 20. When the cover 2 is covered in this way ( 2) sufficiently prevents foreign matter from flowing into the case 1, but a simple switching from an off state to an on state is not a signal for the user to receive power or data communication. Even if a signal is put in, a new problem arises that the cover 2 must be removed again because the cable C must be connected.

In particular, such a new problem is when a cable is frequently connected to a cable connecting device that is exposed to a lot of outside, such as a cable connecting device connected to various electronic devices mounted on a bicycle that is widely used outdoors, and then has to be released. Is more serious.

Accordingly, the inventor of the present invention set the title of "Development of a handlebar with built-in headlights for electric bicycles for export to Europe and a seatpost with a side illumination angle of 110°" In the process of carrying out the research project (project serial number: 2016-1-014), the invention of a cable connection device capable of solving even the new problems as described above was made.

An object to be solved by the present invention is to provide a cable connecting device that can also be used as a means for transmitting a switching signal, a cover used to prevent the inflow of foreign matter when the cable is not connected.

Meanwhile, the technical problem to be solved by the present invention is not limited to the above-described technical problem, and other technical problems that are not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. I will be able to.

The cable connection device according to the present invention for solving the above technical problem includes a circuit that receives a signal through a cable and a signal terminal connecting the circuit and the cable, and the cable can be connected to the signal terminal. A case that is partially open so that; And a cover covering an open part of the case so as to prevent foreign matters from flowing into the case when the cable is not connected to the signal terminal, wherein the cover covers the open part of the case. In this case, a button for inputting a switching signal by the user and a switch terminal connected to the circuit or the signal terminal according to an operation of the button may be included so that the switching signal can be transmitted according to the user's intention.

Here, the button is formed of an elastic member whose shape is deformed when the user presses it, and the switch terminal is in an off state by allowing the pair of signal terminals to be interconnected when the shape of the button is deformed. In the on state, the switching signal may be transmitted.

In this case, the button includes a hollow portion having an empty inside, and the switch terminal includes a connecting portion facing the inside of the hollow portion while spaced apart from the pair of signal terminals extending to the inside of the hollow portion by a predetermined distance, When the user presses the button, as the shape of the button is deformed, the inner space of the hollow portion is reduced, and the pair of signal terminals come into contact with the connection portion and are interconnected, thereby turning on in an off state. A switching signal can be delivered to the state.

In addition, the button is deformed so as to expand toward the inside of the case when the user presses it, and the switch terminal is a connection part facing inside the case while being spaced a predetermined distance from the pair of signal terminals provided inside the case. Including, as the button is deformed to expand toward the inside of the case when the user presses the button, a pair of the signal terminals come into contact with the connection part and are interconnected to be turned on in an off state. A switching signal may be transmitted to the state.

Meanwhile, the button is formed of an elastic member that changes shape when the user presses it, and the switch terminal is connected to the first switch terminal and the signal terminal, which are always connected to the circuit regardless of the shape change of the button. And a second switch terminal facing the first switch terminal, wherein when the shape of the button is deformed, the first switch terminal and the second switch terminal are connected to each other so that it is turned on in an off state ( On), a switching signal can be transmitted.

At this time, the button includes a hollow portion having an empty inside, the first switch terminal has one end connected to the circuit at all times and the other end extends to the inside of the hollow portion, and the second switch terminal has one end portion of the signal It is connected to a terminal and the other end is formed to face the other end of the first switch terminal inside the hollow part, so that when the user presses the button, the shape of the button is deformed, so that the internal space of the hollow part is reduced As a result, the other end of the first switch terminal and the other end of the second switch terminal are brought into contact with each other, and thus a switching signal may be transmitted from an off state to an on state.

Meanwhile, the button is formed of an elastic member whose shape is deformed when the user presses it, and the switch terminal allows a pair of circuit terminals separately branched from the circuit to be interconnected when the shape of the button is deformed, A switching signal may be transmitted from an off state to an on state.

In this case, the button includes a hollow portion having an empty inside, and the switch terminal includes a pair of circuit terminals having each end portion always connected to the circuit and each other end extending to the inside of the hollow portion, When the user presses the button, as the shape of the button is deformed, the inner space of the hollow part is reduced, and the other ends of each of the pair of circuit terminals come into contact with each other and are interconnected to be turned on in the off state ( On), a switching signal can be transmitted.

In addition, the button is deformed so as to expand toward the inside of the case when the user presses it, and the switch terminal includes a connection part facing the inside of the case while being spaced apart from the pair of circuit terminals by a predetermined distance, and the user When the button is pressed, the button is deformed to expand toward the inside of the case, so that the pair of circuit terminals come into contact with the connection and are interconnected, so that a switching signal is transmitted from an off state to an on state. It could be.

Meanwhile, in the cable connection device as described above, the button is formed to input the switching signal as a touch signal by the user using static electricity, and the switch terminal is provided through a touch signal recognition unit separately provided inside the case. The touch signal may be interpreted as the switching signal to be connected to the circuit or the signal terminal.

In addition, in the cable connection device as described above, a plurality of the buttons are provided so that the user can input a selective switching signal, and the switch terminal is the circuit or the signal terminal according to the operation of each button. Can be connected with.

In the cable connecting device according to the present invention having the above-described configuration, the cover used to prevent the inflow of foreign substances when the cable is not connected can also be used as a means for transmitting a switching signal, so that the cover is removed to reconnect the cable. There is an effect that switching signals can be transmitted without connection.

This effect is even greater when the cable is frequently connected and disconnected in a situation where there are many foreign substances, such as outdoors, such as a cable connecting device connected to various electronic devices mounted on bicycles that are widely used outdoors. There is.

Meanwhile, the effects of the present invention are not limited to the above-mentioned effects, and other effects that are not mentioned will be clearly understood by those of ordinary skill in the art from the description of the claims.

1 is a cross-sectional view showing a form in which a cable is connected to a signal terminal in a conventional cable connection device.
2 is a cross-sectional view illustrating a case in which a cover covers a case when a cable is not connected to a signal terminal in a conventional cable connection device.
3 is a cross-sectional view showing a first embodiment of a cable connection device according to the present invention.
4 is a cross-sectional view showing a modified example of the first embodiment of the cable connection device according to the present invention.
5 is a cross-sectional view showing a second embodiment of a cable connection device according to the present invention.
6 is a cross-sectional view showing a third embodiment of a cable connection device according to the present invention.
7 is a cross-sectional view showing a modified example of the third embodiment of the cable connection device according to the present invention.
8 is a cross-sectional view illustrating an example in which the first to third embodiments of the cable connecting device according to the present invention can be modified as a fourth embodiment.
9 is a cross-sectional view illustrating another example in which the first to third embodiments of the cable connection device according to the present invention can be modified as a fifth embodiment.

Hereinafter, an embodiment of the present invention in which the object of the present invention may be specifically realized will be described with reference to the accompanying drawings. In describing an exemplary embodiment, the same names and the same reference numerals are used for the same components, and additional descriptions thereof will be omitted.

However, in explaining in detail by dividing one embodiment of the present invention into the first to fifth embodiments, although the configuration is substantially the same, it may be implemented in a different shape between the respective embodiments. In order to prevent this, even though the names and symbols in [Specific Contents for Carrying out the Invention] are used the same, the symbols in the [drawings] shall be separated by "-(number)". (For example, the button 100 is described using the same name and reference numeral 100 with substantially the same configuration in both the first embodiment and the second embodiment, but reference numerals related to the first embodiment are 100-1. And the reference numerals related to the second embodiment as 100-2.)

In addition, in describing the present embodiment, the configuration shown in the drawings is only an example to aid understanding of the detailed description, and thus it is specified that the scope of the rights is not limited.

First, a first embodiment of a cable connecting device according to the present invention will be described in detail with reference to FIGS. 3 and 4 below, wherein FIG. 3 is a cross-sectional view showing a first embodiment of the cable connecting device according to the present invention. 4 is a cross-sectional view showing a modification of the first embodiment of the cable connection device according to the present invention.

As shown in FIG. 3, the first embodiment of the cable connection device according to the present invention includes a case 1 and a cover 2, and the cover 2 includes a button 100 and a switch terminal 200. Include.

Here, the case 1 and the cover 2 are substantially the same as the conventional case 1 and the cover 2, as mentioned in the [technology behind the invention] described above, and such a case 1 And the cover (2) has a variety of shapes and sizes, and thus it is natural that the scope of rights is not limited.

That is, the case (1) has a built-in circuit (10) that receives a signal through a cable (C) and a signal terminal (20) that connects the circuit (10) and the cable (C), and the cable (C) is It only needs to be configured to partially open so that it can be connected to the signal terminal 20.

In addition, if the cover (2) is not connected to the signal terminal (20) of the cable (C), as long as it is configured to cover the open part of the case (1) to prevent foreign matter from flowing into the case (1). do.

However, in the case of the cover 2, the present invention includes a button 100 and a switch terminal 200 so that a switching signal can be transmitted according to the user's intention when covering the open part of the case 1 As a technical feature, and thereby the scope of the present invention is determined, it will be described in more detail below.

First, the button 100 is a configuration in which a user inputs a switching signal, and if a switching signal can be input, the shape, size, material, structure, etc. may vary, and thus the scope of rights is not limited.

However, in order to explain in more detail, the first embodiment shown in FIG. 3 will be described as an example, and the button 100 may be formed of an elastic member whose shape is deformed when the user presses it, and the inside is empty. It may be formed to include a hollow portion.

In this case, the elastic member may be a member that retains elasticity due to the inherent characteristics of the material, such as rubber, or may be a member that is elastically retained due to a mechanical structure such as a spring.

When the button 100 is formed in this way, when the user presses the button, the shape is changed in a direction in which the hollow portion, which is empty, decreases because it is formed of an elastic member. (At this time, detailed technical features such as that the air occupying the hollow part is compressed or discharged to the outside may obscure the gist of the present invention, so it is not described in detail.)

On the other hand, the switch terminal 200 is a configuration that is connected to the circuit 10 or the signal terminal 20 according to the operation of the button 100, which is also the circuit 10 or the signal terminal ( If it can be connected with 20), the shape, size, material, or structure may vary, and it is natural that the scope of the rights is not limited.

However, in order to explain in more detail, this also takes the first embodiment shown in FIG. 3 as an example, and the switch terminal 200 is a pair of signal terminals extending to the inside of the hollow portion of the button 100 ( 20) and may be configured to include a connection portion facing in the interior of the hollow portion spaced a predetermined distance.

At this time, since the connection part is connected to the pair of signal terminals 20 and the switching signal is transmitted from the off state to the on state, of course, it is configured to be energized with the pair of signal terminals 20. Should be.

Here, the off state and the on state are used as terms representing 0 and 1 processed in binary, and should not be interpreted as being limited to turning on or off the power in a specific device. Therefore, the scope of rights should not be limited.

In addition, the predetermined distance between the connection part and the pair of signal terminals 20 is determined in consideration of the size of the hollow part that is reduced when the button 100 is pressed as described above, and the connection part and the pair of signal terminals 20 It will be advantageous to consider the possibility that the user does not press the button 100 in the direction in which) is connected.

The cover 2 configured as described above, when a user wants to input a switching signal from an off state to an on state to the circuit 10, the button 100 and the button 100 even if it is not removed from the case 1 Since the switch terminal 200 is provided, a switching signal can be transmitted.

That is, when the user presses the button 100 to input the switching signal into the circuit 10, the button 100 is deformed in shape, so that the inner space of the hollow part included in the button 100 is reduced, The signal terminal 20 of is in contact with the connection part included in the switch terminal 200 and is interconnected, so that the switching signal is transmitted to the circuit 10 from the off state to the on state according to the user's intention. will be.

Meanwhile, the first embodiment of the cable connection device according to the present invention as described above can be variously modified within the scope of the present invention, as shown in FIG. 4 as an example.

That is, as shown in FIG. 4, in a modification to the first embodiment of the cable connection device according to the present invention, the button 100 and the switch terminal 200 may be configured as follows.

First, the button 100 may be configured to be deformed to expand toward the inside of the case 1 when the user presses it, and the switch terminal 200 includes a pair of signal terminals 20 provided inside the case 1 It may be configured to include a connection part facing inside the case 1 with a predetermined distance apart.

A modification to the first embodiment of the cable connection device according to the present invention including the cover 2 configured as deformed as described above is that when the user presses the button 100, the button 100 opens the inside of the case 1 As it is deformed so as to expand toward the direction, the switching signal is transmitted from the off state to the on state by being in contact with the connection part of the pair of signal terminals 20 and being interconnected.

Next, a second embodiment of the cable connecting device according to the present invention will be described in detail with reference to FIG. 5 as follows, wherein FIG. 5 is a cross-sectional view showing a second embodiment of the cable connecting device according to the present invention, The second embodiment also includes a case 1 and a cover 2 as in the first embodiment, and the cover 2 includes a button 100 and a switch terminal 200. It will be described in detail focusing on the differences.

As shown in Fig. 5, the button 100 in the second embodiment of the cable connecting device according to the present invention is formed of an elastic member that changes shape when the user presses it, but is configured to include a hollow portion having an empty inside. The switch terminal 200 may include a first switch terminal 210 and a second switch terminal 220.

At this time, the first switch terminal 210 may be configured to be always connected to the circuit 10 regardless of the shape change of the button 100, and the second switch terminal 220 is connected to the signal terminal 20 1 It is provided to face the switch terminal 210 and may be configured to be connected to the first switch terminal 210 when the shape of the button 100 is deformed.

More specifically, the first switch terminal 210 has one end connected to the circuit 10 at all times and the other end extended to the inside of the hollow portion of the button 100, and the second switch terminal 220 has one end It is connected to the signal terminal 20 and the other end may be formed to face the other end of the first switch terminal 210 inside the hollow part of the button 100.

According to the second embodiment of the cable connection device according to the present invention configured as described above, as the shape of the button 100 is deformed when the user presses the button 100, the space inside the hollow part of the button 100 is reduced. As a result, the other end of the first switch terminal 210 and the other end of the second switch terminal 220 come into contact and are connected to each other, so that the switching signal is transmitted from the off state to the on state at the user's will. .

Subsequently, a third embodiment of the cable connection device according to the present invention will be described in detail with reference to FIGS. 6 and 7 below, wherein FIG. 6 shows a third embodiment of the cable connection device according to the present invention. 7 is a cross-sectional view showing a modified example of the third embodiment of the cable connecting device according to the present invention, and the third embodiment is also the same as the first or second embodiment, the case 1 and the cover ( 2), and the cover 2 includes the button 100 and the switch terminal 200, and the following will be described in detail focusing on the difference from the first embodiment or the second embodiment.

As shown in Fig. 6, the button 100 of the third embodiment of the cable connecting device according to the present invention is formed of an elastic member that changes shape when the user presses it, but is configured to include a hollow portion having an empty inside. The switch terminal 200 may be configured such that when the shape of the button 100 is deformed, a pair of circuit terminals separately branched from the circuit 10 are interconnected.

More specifically, the switch terminal 200 may be configured to include a pair of circuit terminals, each one end is always connected to the circuit 10 and each other end extends to the inside of the hollow portion of the button 100, , In the third embodiment of the cable connecting device according to the present invention configured as described above, as the shape of the button 100 is deformed when the user presses the button 100, the inner space of the hollow portion of the button 100 is reduced. Since the other ends of each of the pair of circuit terminals are in contact with each other and are connected to each other, a switching signal may be transmitted from an off state to an on state according to a user's intention.

Meanwhile, the third embodiment of the cable connecting device according to the present invention may be modified as shown in FIG. 7.

As shown in FIG. 7, the button 100 may be configured to be deformed into the case 1 when the user presses it, and the switch terminal 200 is spaced apart from a pair of circuit terminals and inside the case. It can be configured to include a connecting portion facing in.

At this time, since the technical features related to the connection part are substantially the same as the modification example of the first embodiment of the cable connection device according to the present invention, a description thereof will be omitted.

According to the modified example of the third embodiment of the cable connection device according to the present invention modified as described above, when the user presses the button 100, the button 100 is deformed to expand toward the inside of the case 1 As the pair of circuit terminals come into contact with the connection part and are interconnected, a switching signal may be transmitted from an off state to an on state at the user's will.

Lastly, the fourth and fifth embodiments of the cable connection device according to the present invention will be described in detail with reference to FIGS. 8 and 9, wherein FIG. 8 is a first diagram of a cable connection device according to the present invention. A cross-sectional view showing an example in which the embodiment to the third embodiment can be modified as the fourth embodiment, and Fig. 9 is a cross-sectional view showing the first to third embodiments of the cable connecting device according to the present invention. It is a cross-sectional view showing another example for explaining the fifth embodiment.

That is, the fourth and fifth embodiments of the cable connection device according to the present invention, which will be described in detail below, are a button 100 and a switch terminal that can be modified in common with all of the first to third embodiments. As explained in 200), even if all are modified in common, they correspond to modifications within the scope of the rights of the present invention, and thus the scope of rights is not limited.

First, referring to the fourth embodiment of the cable connection device according to the present invention, the button 100 in the fourth embodiment uses a switching signal using static electricity so that the switch terminal can be operated even if the user does not pressurize it. May be formed to be input as a touch signal by a user.

When the button 100 is formed in this way, the switch terminal 200 also corresponds to this, and the touch signal input through the button 100 through the touch signal recognition unit 300 separately provided inside the case 1 is converted into a switching signal. It can be interpreted as being connected to the circuit 10 or the signal terminal 20.

In the fourth embodiment of the cable connecting device according to the present invention, which is deformed in this way, unlike the first to third embodiments, the user does not have to apply a physical force greater than the elasticity of the button 100, so It would be advantageous if used for bicycles used by the elderly, but on the contrary, if the user does not apply an electrostatic signal to the button 100, such as when the user is wearing gloves, the touch signal is not input. something to do.

Meanwhile, referring to the fifth embodiment of the cable connection device according to the present invention, a plurality of buttons 100 in the fifth embodiment may be provided so that a user can input a selective switching signal, and a switch terminal ( In response to this, 200 may be configured to be connected to the circuit 10 or the signal terminal 20 according to the operation of each button 100.

The fifth embodiment of the cable connection device according to the present invention modified as described above will be advantageous in that it can handle a plurality of switching signals, unlike the first to third embodiments, but on the contrary, the user is riding a bicycle. It will be disadvantageous in that it can be confusing if you put a switching signal in the middle.

That is, since the fourth and fifth embodiments of the cable connecting device according to the present invention as described above may have advantages and disadvantages, respectively, this is applied in various ways according to the user's selection to maximize the effect according to the present invention. It is desirable to do so.

As described above, one embodiment according to the present invention has been looked at, and the fact that the present invention can be embodied in other specific forms without departing from its spirit or scope other than the above-described embodiments is known to those skilled in the art. This is obvious to them.

Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description and may be modified within the scope of the appended claims and equivalents thereof.

C: cable
1: case
2: cover
10: circuit
20: signal terminal
100: button
200: switch terminal
210: first switch terminal
220: second switch terminal
300: touch signal recognition unit
The present invention is the result of development of the following Korean government support project.
-Assignment number: 2016-1-014
-Central administrative agency: Ministry of Trade, Industry and Energy
-Project title: "Development of a handlebar with built-in headlights with 0° cut-off for electric bicycles and a seatpost with built-in rear lights with a side angle of 110° for export to Europe"

Claims (11)

A case in which a circuit for receiving signals through a cable and a signal terminal connecting the circuit and the cable is built-in, and a case in which a part is opened so that the cable can be connected to the signal terminal, and a cover covering the open part of the case Including,
In order to prevent foreign substances from entering the case, even if the cable is not connected to the signal terminal because the cover covers the open part of the case, the off state and on ) So that the switching signal to change the state can be transmitted,
The cover,
A button for the user to input the switching signal; And a switch terminal connected to the circuit or the signal terminal according to an operation of the button.
The method of claim 1,
The button is formed of an elastic member whose shape is deformed when the user presses it, and the switch terminal allows a pair of the signal terminals to be interconnected when the shape of the button is deformed,
A cable connecting device, characterized in that a switching signal is transmitted from an off state to an on state.
The method of claim 2,
The button includes a hollow portion having an empty inside, and the switch terminal includes a connecting portion facing the inside of the hollow portion with a predetermined distance apart from the pair of signal terminals extending to the inside of the hollow portion,
When the user presses the button, as the shape of the button is deformed, the inner space of the hollow portion is reduced, and the pair of signal terminals come into contact with the connection portion and are interconnected, thereby turning on in an off state. Cable connection device, characterized in that the switching signal is transmitted in the state.
The method of claim 2,
The button is deformed so as to expand toward the inside of the case when the user presses it, and the switch terminal includes a connection part facing the inside of the case while being spaced a predetermined distance from the pair of signal terminals provided inside the case. So,
When the user presses the button, as the button is deformed to expand toward the inside of the case, a pair of the signal terminals come into contact with the connection part and are interconnected, thereby a switching signal from an off state to an on state Cable connection device, characterized in that the transmission.
The method of claim 1,
The button is formed of an elastic member that is deformed when the user presses the button, and the switch terminal is connected to the first switch terminal and the signal terminal, which are always connected to the circuit regardless of the shape deformation of the button. Including a second switch terminal facing the first switch terminal, wherein the first switch terminal and the second switch terminal are interconnected when the shape of the button is deformed,
A cable connecting device, characterized in that a switching signal is transmitted from an off state to an on state.
The method of claim 5,
The button includes a hollow part having an empty inside, the first switch terminal has one end connected to the circuit at all times and the other end extends to the inside of the hollow part, and the second switch terminal has one end connected to the signal terminal. It is connected and the other end is formed to face the other end of the first switch terminal in the interior of the hollow part,
When the user presses the button, as the shape of the button is deformed, the inner space of the hollow part is reduced, and the other end of the first switch terminal and the other end of the second switch terminal come into contact and are mutually connected to each other. A cable connecting device, characterized in that a switching signal is transmitted from an off) state to an on state.
The method of claim 1,
The button is formed of an elastic member that changes shape when the user presses it, and the switch terminal allows a pair of circuit terminals separately branched from the circuit to be interconnected when the shape of the button is deformed,
A cable connecting device, characterized in that a switching signal is transmitted from an off state to an on state.
The method of claim 7,
The button includes a hollow portion having an empty inside, and the switch terminal includes a pair of circuit terminals whose one end is always connected to the circuit and each other end extends to the inside of the hollow portion,
When the user presses the button, as the shape of the button is deformed, the inner space of the hollow part is reduced, and the other ends of each of the pair of circuit terminals come into contact with each other and are interconnected to be turned on in the off state ( On) cable connection device, characterized in that the switching signal is transmitted.
The method of claim 7,
The button is deformed so as to expand toward the inside of the case when the user presses it, and the switch terminal includes a connection part facing the inside of the case while being spaced apart from the pair of circuit terminals by a predetermined distance,
When the user presses the button, as the button is deformed to expand toward the inside of the case, a pair of the circuit terminals come into contact with the connection and are interconnected, thereby switching signals from an off state to an on state. Cable connection device, characterized in that the transmission.
The method according to any one of claims 1 to 9,
The button is formed to input the switching signal as a touch signal by the user using static electricity,
The switch terminal is a cable connecting device, characterized in that connected to the circuit or the signal terminal by interpreting the touch signal as the switching signal through a touch signal recognition unit separately provided inside the case.
The method according to any one of claims 1 to 9,
The button is provided with a plurality of buttons so that the user can input a selective switching signal,
And the switch terminal is connected to the circuit or the signal terminal according to the operation of each button.

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