Resistance value test device for thermistor testing

Abstract

The present application relates to a resistance value testing device for thermistor testing, including: a bearing assembly having a bearing substrate; a plurality of mounting assemblies arranged side by side on the bearing substrate, each mounting assembly having a mounting seat and two conductive connectors, the two conductive connectors being arranged on the mounting seat; a selection assembly having a first connection terminal, a plurality of selection connection terminals and a selection member, one of the conductive connectors in each mounting assembly being connected to the first connection terminal, the plurality of selection connection terminals being connected one-to-one with another conductive connector in the plurality of mounting assemblies, and the selection member being selectively connected to one of the selection connection terminals; a test assembly having a first access terminal and a second access terminal, the first access terminal being connected to the first connection terminal, and the second access terminal being connected to the selection member. The present application can realize the resistance value testing of a plurality of thermistors in one-time assembly, improve the test efficiency, and the operation process is simple and convenient, and the test speed is fast.

Description

Technical Field

[0001] The present application relates to the technical field of thermistors, and in particular to a resistance value testing device used for testing thermistors. Background Art

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. Temperature sensors are the core part of temperature measuring instruments and come in many varieties. In the process of implementing this application, the applicant discovered that during the production process of existing temperature sensors, it is necessary to test their resistance at different temperatures in a high and low temperature box. However, since the lead wires of the temperature sensor are usually relatively short, it is impossible to directly test the displayed resistance in the high and low temperature box. Therefore, it is necessary to use a temperature sensor test instrument for testing. However, the existing temperature sensor test instruments can only be installed and tested one by one, with low testing efficiency, slow speed, and a relatively complicated operation process. Summary of the invention

[0003] The embodiment of the present application provides a resistance value testing device for thermistor testing, which solves the problem that when the temperature sensor is tested in a high and low temperature chamber, it can only be installed and tested one by one through a testing instrument, resulting in low testing efficiency, slow speed, and a relatively complicated operation process.

[0004] To solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, a resistance value testing device for testing a thermistor is provided, comprising: a bearing component having a bearing substrate; a plurality of mounting components arranged side by side on the bearing substrate, each mounting component having a mounting seat and two conductive connecting members, the mounting seat being used to bear the thermistor, the two conductive connecting members being arranged on the mounting seat, wherein when the mounting seat bears the thermistor, two lead wires of the thermistor are correspondingly connected to the two conductive connecting members; a selection component having a first connection terminal, a plurality of selection connection terminals and a selection member, one of the conductive connecting members in each mounting component is connected to the first connection terminal, the plurality of selection connection terminals are connected one-to-one with another conductive connecting member in the plurality of mounting components, and the selection member can selectively connect to one of the selection connection terminals; a test component having a first access terminal and a second access terminal, the first access terminal being connected to the first connection terminal, the second access terminal being connected to the selection member, the test component being configured to test the resistance value of the thermistor connected to its circuit; wherein when the selection member selects to connect to one of the selection connection terminals, the thermistor carried in the corresponding mounting component is connected to the circuit of the test component, and the test component tests the resistance value of the corresponding thermistor.

[0006] In a first possible implementation of the first aspect, the mounting seat has a first mounting groove and two second mounting grooves, the two second mounting grooves are arranged side by side and one end thereof is connected to the first mounting groove, the other ends of the two second mounting grooves extend toward the length direction of the mounting seat, and two conductive connectors are correspondingly arranged in the two second mounting grooves, wherein when the mounting seat carries a thermistor, the thermistor is arranged in the first mounting groove, and two lead wires of the thermistor extend into the two second mounting grooves and are correspondingly connected to the two conductive connectors.

[0007] In combination with the first possible implementation method of the first aspect, in a second possible implementation method of the first aspect, each mounting assembly has a clamping member and a locking member, the clamping member has a rotating end and a clamping end that are relatively arranged, the rotating end is arranged on the mounting seat and is located on the side of the second mounting groove away from the first mounting groove, the clamping end can rotate around the rotating end and be pressed on the two conductive connectors, so that the two lead wires of the thermistor are pressed and fitted against the two conductive connectors, the locking member is arranged on the mounting seat and is located on the side of the first mounting groove away from the second mounting groove, and the locking member is used to lock the clamping member to the mounting seat when the clamping end is pressed on the two conductive connectors.

[0008] In combination with the second possible implementation method of the first aspect, in a third possible implementation method of the first aspect, the mounting seat has a rotating shaft bracket and a rotating shaft, the rotating shaft bracket is located on the side of the second mounting groove away from the first mounting groove, and the rotating shaft passes through the rotating shaft bracket and the rotating end and is fixedly connected to the rotating end.

[0009] In combination with the third possible implementation of the first aspect, in a fourth possible implementation of the first aspect, each mounting assembly has a reset torsion spring, which is sleeved on the rotating shaft, and the reset torsion spring has a first abutment end and a second abutment end, the first abutment end abuts against the mounting seat, and the second abutment end abuts against the clamping member, wherein when the clamping end rotates around the rotating end and is clamped on the two conductive connecting members, the clamping member drives the second abutment end to twist toward the first abutment end to make the reset torsion spring in an elastic state.

[0010] In combination with the third possible implementation of the first aspect, in a fifth possible implementation of the first aspect, each mounting assembly has a limiting member, which is arranged on the mounting seat and located on the side of the rotating shaft away from the second mounting groove to limit the rotation angle of the clamping member.

[0011] In combination with the second possible implementation of the first aspect, in a sixth possible implementation of the first aspect, each mounting assembly has an insulating pad, which is arranged between the clamping end of the clamping piece and the two conductive connectors, wherein when the clamping end presses the two lead wires of the thermistor to fit the two conductive connectors, the two lead wires of the thermistor are located between the insulating pad and the two conductive connectors.

[0012] In combination with the first possible implementation of the first aspect, in a seventh possible implementation of the first aspect, each conductive connector has a conductor block and a connecting screw, the conductor block is arranged in the corresponding second mounting groove, and the connecting screw passes through one end of the conductor block away from the first mounting groove and is connected to the mounting seat.

[0013] In an eighth possible implementation manner of the first aspect, the selection component has a second connection terminal connected to the selection member, and the second access end is connected to the second connection terminal to be connected to the selection member through the second connection terminal.

[0014] In combination with the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the selection component has a shell, a first wire connection, multiple second wire connections and multiple third wire connections, a first connection terminal, a second connection terminal, multiple selection connection terminals and a selection piece are arranged on the shell, the second connection terminal is connected to the selection piece through the first wire connection, one of the conductive connecting pieces in each installation component is connected to the first connection terminal through the second wire connection, and multiple selection connection terminals are connected one-to-one with another conductive connecting piece in the multiple installation components through multiple third wire connections.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] When testing the resistance value of thermistors, the present application assembles a plurality of thermistors on a plurality of mounting components accordingly, then places the carrier component and the plurality of mounting components into a high and low temperature box as a whole, adjusts the temperature to the test temperature through the high and low temperature box, and then selectively connects the plurality of thermistors to the circuit of the test component in turn through the selection element in the selection component, and at the same time tests the resistance value of the thermistors connected to the circuit through the test component, thereby realizing the one-time assembly test of the resistance value of a plurality of thermistors, improving the test efficiency, and the operation process is simple and convenient, and the test speed is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a partial stereoscopic diagram of a resistance value testing device applied to thermistor testing according to an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the circuit principle of a resistance value testing device applied to thermistor testing according to an embodiment of the present application.

[0020] Figure 3 It is a three-dimensional diagram of a plurality of mounting components arranged side by side on a carrier substrate according to an embodiment of the present application.

[0021] Figure 4 It is a three-dimensional diagram of an installation component according to an embodiment of the present application.

[0022] Figure 5 It is a three-dimensional diagram of a mounting base according to an embodiment of the present application.

[0023] Figure 6 It is a partial stereoscopic diagram of an installation component of an embodiment of the present application.

[0024] Figure 7 It is a three-dimensional diagram of a return torsion spring according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] In one embodiment of the present application, please refer to Figures 1 to 4 , Figure 1 is a partial stereogram of a resistance value testing device for thermistor testing according to an embodiment of the present application. Figure 2 1 is a schematic diagram of a circuit principle of a resistance value testing device for thermistor testing according to an embodiment of the present application. Figure 3 is a three-dimensional diagram of a plurality of mounting components arranged side by side on a carrier substrate according to an embodiment of the present application, Figure 41 is a three-dimensional diagram of an installation component of an embodiment of the present application. As shown in the figure, a resistance value test device 1 for testing a thermistor includes a bearing component 2, a plurality of mounting components 3, a selection component 4 and a test component 5. The bearing component 2 has a bearing substrate 21, and a plurality of mounting components 3 are arranged side by side on the bearing substrate 21. Each mounting component 3 has a mounting seat 31 and two conductive connecting members 32. The mounting seat 31 is used to carry the thermistor S. The two conductive connecting members 32 are arranged on the mounting seat 31. The selection component 4 has a first connecting terminal 41, a plurality of selection connecting terminals 42 and a selection member 43. One of the mounting components 3 The conductive connection member 32 is connected to the first connection terminal 41, and the multiple selection connection terminals 42 are connected to another conductive connection member 32 in the multiple installation components 3 in a one-to-one correspondence. The selection member 43 can selectively connect one of the selection connection terminals 42. The test component 5 has a first access terminal 51 and a second access terminal 52. The first access terminal 51 is connected to the first connection terminal 41, and the second access terminal 52 is connected to the selection member 43. When the selection member 43 selects to connect to one of the selection connection terminals 42, the thermistor S carried by the corresponding installation component 3 is connected to the circuit of the test component 5, and the test component 5 tests the resistance value of the corresponding thermistor S. In this embodiment, the test component 5 is a bridge, which is an instrument for measuring various quantities (such as resistance, capacitance, inductance, etc.) by comparison method, but is not limited to this.

[0027] When testing the resistance value of thermistors S, the resistance value testing device 1 of this embodiment assembles multiple thermistors S correspondingly on the mounting seats 31 of multiple mounting components 3, and simultaneously connects the two lead wires S1 of each thermistor S to the two conductive connectors 32 of the corresponding mounting components 3, and then puts the bearing component 2 and the multiple mounting components 3 as a whole into a high and low temperature box (not shown in the figure), sets the temperature of the high and low temperature box to a specified value, that is, the test temperature, and after the temperature stabilizes, selectively connects the multiple thermistors S to the circuit of the test component 5 in turn through the selection component 43 in the selection component 4, and simultaneously tests the resistance value of the thermistors S connected to its circuit through the test component 5, so as to realize the one-time assembly test of the resistance value of multiple thermistors S, improve the test efficiency, and the operation process is simple, convenient, and the test speed is fast. It should be noted that the number of mounting components 3 shown in the figure of this embodiment is 10, but the number of mounting components 3 is not limited thereto, and those skilled in the art can set other numbers of mounting components 3 according to actual test requirements.

[0028] Please also read Figure 5, which is a three-dimensional diagram of a mounting base of an embodiment of the present application. As shown in the figure, the mounting base 31 has a first mounting groove 311 and two second mounting grooves 312. The two second mounting grooves 312 are arranged side by side and one end thereof is connected to the first mounting groove 311. The other ends of the two second mounting grooves 312 extend toward the length direction of the mounting base 31. Two conductive connectors 32 are correspondingly arranged in the two second mounting grooves 312. When the mounting base 31 carries a thermistor S, the thermistor S is arranged in the first mounting groove 311. The two lead wires S1 of the thermistor S extend into the two second mounting grooves 312 and are correspondingly connected to the two conductive connectors 32. In this embodiment, please refer to Figure 6 , which is a partial stereoscopic diagram of the installation assembly of an embodiment of the present application. As shown in the figure, each conductive connecting member 32 has a conductor block 321 and a wiring screw 322. The conductor block 321 is arranged in the corresponding second installation groove 312. The wiring screw 322 passes through the end of the conductor block 321 away from the first installation groove 311 and is connected to the mounting seat 31 to fix the conductor block 321 in the second installation groove 312. In this embodiment, a flat washer 323 and a spring washer (not shown in the figure) are further arranged between the wiring screw 322 and the conductor block 321 to prevent the conductor block 321 from being squeezed and damaged and to prevent the wiring screw 322 from loosening. In this embodiment, the material of the mounting seat 31 is polytetrafluoroethylene, and the conductor block 321 is a rectangular copper plate, but is not limited to this.

[0029] Please refer again Figure 4 Each mounting assembly 3 also has a clamping member 33 and a locking member 34. The clamping member 33 has a rotating end 331 and a clamping end 332 that are arranged opposite to each other. The rotating end 331 is arranged on the mounting seat 31 and is located on the side of the second mounting groove 312 away from the first mounting groove 311. The clamping end 332 can rotate around the rotating end 331 and be pressed on the two conductive connecting members 32, so that the two lead wires S1 of the thermistor S are pressed and fitted on the two conductive connecting members 32. In this embodiment, the mounting seat 31 has a rotating shaft bracket 313 and a rotating shaft 314. The rotating shaft bracket 313 is located on the side of the second mounting groove 312 away from the first mounting groove 311, the rotating shaft 314 passes through the rotating shaft bracket 313 and the rotating end 331 and is fixedly connected to the rotating end 331, the rotating end 331 is arranged on the mounting seat 31 through the rotating shaft 314 and the rotating shaft bracket 313, the pressing end 332 rotates around the rotating end 331 with the rotating shaft 314 as the axis, in this embodiment, the rotating shaft 314 and the rotating end 331 are fixedly connected by screws 315, and the screws 315 pass through the rotating end 331 and are tightened on the rotating shaft 314, but not limited to this. The locking member 34 is arranged on the mounting seat 31 and is located on the side of the first mounting groove 311 away from the second mounting groove 312, and the locking member 34 is used to lock and fix the pressing member 33 to the mounting seat 31 when the pressing end 332 is pressed on the two conductive connecting members 32. In this embodiment, the locking member 34 is a quick clamp, but not limited to this.

[0030] Please read again Figure 4 and Figure 6 The clamping end 332 of the clamping member 33 is adjacent to the two conductive connecting members 32 on one side and has two clamping blocks 3321. A limiting protrusion 316 is provided between the two second mounting grooves 312. The limiting protrusion 316 is located between the two clamping blocks 3321. When the clamping end 332 rotates around the rotating end 331 and is pressed on the two conductive connecting members 32, the two clamping blocks 3321 are pressed on the two conductive connecting members 32. At the same time, the clamping end 332 abuts against the limiting protrusion 316. The limiting protrusion 316 limits the clamping force of the clamping member 33 to prevent the lead wire S1 of the thermistor S from being damaged by excessive pressure.

[0031] Each mounting assembly 3 has an insulating pad 37, which is disposed between a clamping end 332 of the clamping member 33 and two conductive connectors 32. When the clamping end 332 presses two lead wires S1 of the thermistor S to fit the two conductive connectors 32, the two lead wires S1 of the thermistor S are located between the insulating pad 37 and the two conductive connectors 32 to prevent the clamping end 332 from directly contacting the lead wires S1 and crushing them. In the present embodiment, the insulating pad 37 is made of expanded polytetrafluoroethylene tape, but is not limited thereto.

[0032] Please also read Figure 7 , which is a three-dimensional diagram of a reset torsion spring of an embodiment of the present application. As shown in the figure, each mounting assembly 3 also has a reset torsion spring 35, which is sleeved on the rotating shaft 314. The reset torsion spring 35 has a first abutting end 351 and a second abutting end 352. The first abutting end 351 abuts against the mounting seat 31, and the second abutting end 352 abuts against the clamping member 33. When the clamping end 332 rotates around the rotating end 331 and is pressed against the two conductive connecting members 32, the clamping member 33 drives the second abutting end 352 to twist toward the first abutting end 351 to make the reset torsion spring 35 in an elastic state, so that the clamping member 33 has a rebound posture. At this time, the locking member 34 can be used to lock and fix the clamping member 33 to the mounting seat 31. After the locking member 34 is opened, the reset torsion spring 35 is reset, and the clamping member 33 is rebounded from the two conductive connecting members 32, thereby facilitating the removal of the thermistor S.

[0033] Please refer again Figure 4 Each mounting assembly 3 has a limit member 36, which is arranged on the mounting seat 31 and located on the side of the rotating shaft 314 away from the second mounting groove 312 to limit the rotation angle of the clamping member 33. In this embodiment, the limit member 36 is an L-shaped steel plate, one end of which is attached to the mounting seat 31 and is set on the mounting seat 31 by a plurality of screws, and the other end is perpendicular to the mounting seat 31 and located on the side of the rotating shaft 314 away from the second mounting groove 312, but is not limited thereto.

[0034] In one embodiment, please refer to Figure 1 and Figure 2 , the selection component 4 has a second connection terminal 44, the second connection terminal 44 is connected to the selection member 43, the second access terminal 52 is connected to the second connection terminal 44 to connect to the selection member 43 through the second connection terminal 44, in this embodiment, the first connection terminal 41 and the second connection terminal 44 are banana terminals, but are not limited thereto. In this embodiment, the selection component 4 has a housing 45, a first wire connection 46, a plurality of second wire connections 47 and a plurality of third wire connections 48, the first connection terminal 41, the second connection terminal 44, a plurality of selection connection terminals 42 and the selection member 43 are arranged in the housing 45, the second connection terminal 44 is connected to the selection member 43 through the first wire connection 46, one of the conductive connection members 32 in each installation component 3 is connected to the first connection terminal 41 through the second wire connection 47, and the plurality of selection connection terminals 42 are connected to another conductive connection member 32 in the plurality of installation components 3 in a one-to-one correspondence manner through the plurality of third wire connections 48. In this embodiment, the selection component 4 has a knob switch 49, which is arranged in the housing 45. The selection member 43 is a knob in the knob switch 49, and the multiple selection connection terminals 42 are option scales in the knob switch 49. By rotating the knob to the corresponding option scale, the thermistor S carried by the corresponding installation component 3 is connected to the circuit of the test component 5.

[0035] In one embodiment, please refer again to Figure 3 The bearing component 2 also has a plurality of supporting feet 22 , which are vertically arranged at the lower end of the bearing substrate 21 by means of threaded connection, and the plurality of supporting feet 22 are used to support the bearing substrate 21 and the plurality of mounting components 3 .

[0036] In summary, the present application provides a resistance value testing device for thermistor testing. When testing the resistance value of thermistors, multiple thermistors are correspondingly assembled on multiple mounting components, and then the carrier component and the multiple mounting components are placed in a high and low temperature box as a whole. After the high and low temperature box is adjusted to the test temperature, the multiple thermistors are selectively connected to the circuit of the test component in turn through the selection element in the selection component, and the resistance value of the thermistors connected to the circuit is tested through the test component. In this way, the resistance value of multiple thermistors can be assembled and tested at one time, thereby improving the test efficiency, and the operation process is simple and convenient, and the test speed is fast.

[0037] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0038] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A resistance value testing device for thermistor testing, characterized in that: include: The carrier assembly comprises a carrier substrate; A plurality of mounting components are arranged side by side on the supporting substrate, each of the mounting components has a mounting seat and two conductive connecting members, the mounting seat is used to carry the thermistor, and the two conductive connecting members are arranged on the mounting seat, wherein when the mounting seat carries the thermistor, two lead wires of the thermistor are connected to the two conductive connecting members correspondingly; A selection component, comprising a first connection terminal, a plurality of selection connection terminals and a selection member, wherein one of the conductive connection members in each of the installation components is connected to the first connection terminal, the plurality of selection connection terminals are connected to another conductive connection member in the plurality of installation components in a one-to-one correspondence, and the selection member can be selectively connected to one of the selection connection terminals; A test component, comprising a first access end and a second access end, wherein the first access end is connected to the first connection terminal, and the second access end is connected to the selection element, and the test component is configured to test the resistance value of the thermistor connected to its circuit; When the selection member selects to connect one of the selected connection ends, the corresponding thermistor carried by the mounting assembly is connected to the test assembly circuit, and the test assembly tests the resistance value of the corresponding thermistor; The mounting seat is provided with a first mounting groove and two second mounting grooves, the two second mounting grooves are arranged side by side and one end thereof is connected with the first mounting groove, the other ends of the two second mounting grooves extend toward the length direction of the mounting seat, and the two conductive connecting members are correspondingly arranged at the two second mounting grooves, wherein when the mounting seat carries the thermistor, the thermistor is arranged at the first mounting groove, and the two lead wires of the thermistor extend into the two second mounting grooves and are correspondingly connected with the two conductive connecting members; Each of the mounting components comprises a pressing member and a locking member, wherein the pressing member comprises a rotating end and a pressing end which are arranged opposite to each other, wherein the rotating end is arranged on the mounting seat and is located on a side of the second mounting groove which is away from the first mounting groove, and the pressing end can rotate around the rotating end and be pressed on the two conductive connecting members, so that the two lead wires of the thermistor are pressed and fitted on the two conductive connecting members, and the locking member is arranged on the mounting seat and is located on a side of the first mounting groove which is away from the second mounting groove, and the locking member is used to lock and fix the pressing member on the mounting seat when the pressing end is pressed on the two conductive connecting members; Each of the conductive connecting members has a conductor block and a connecting screw. The conductor block is arranged corresponding to the second mounting slot. The connecting screw passes through an end of the conductor block away from the first mounting slot and is connected to the mounting seat.

2. The resistance value testing device according to claim 1, characterized in that: The mounting seat is provided with a rotating shaft bracket and a rotating shaft. The rotating shaft bracket is located at a side of the second mounting groove away from the first mounting groove. The rotating shaft passes through the rotating shaft bracket and the rotating end and is fixedly connected to the rotating end.

3. The resistance value testing device according to claim 2, characterized in that: Each of the mounting components has a return torsion spring, which is sleeved on the rotating shaft. The return torsion spring has a first abutting end and a second abutting end. The first abutting end abuts against the mounting seat, and the second abutting end abuts against the clamping member. When the clamping end rotates around the rotating end and is clamped on the two conductive connecting members, the clamping member drives the second abutting end to twist toward the first abutting end to make the return torsion spring in an elastic state.

4. The resistance value testing device according to claim 2, characterized in that: Each of the mounting components has a limiting member, which is arranged on the mounting seat and located on a side of the rotating shaft away from the second mounting groove to limit the rotation angle of the pressing member.

5. The resistance value testing device according to claim 1, characterized in that: Each of the mounting components has an insulating pad, which is arranged between the clamping end of the clamping piece and the two conductive connecting pieces. When the clamping end presses the two lead wires of the thermistor to fit tightly against the two conductive connecting pieces, the two lead wires of the thermistor are located between the insulating pad and the two conductive connecting pieces.

6. The resistance value testing device according to claim 1, characterized in that: The selection component has a second connection terminal connected to the selection member, and the second access end is connected to the second connection terminal to be connected to the selection member through the second connection terminal.

7. The resistance value testing device according to claim 6, characterized in that: The selection component has a shell, a first wire connection, multiple second wire connections and multiple third wire connections. The first connection terminal, the second connection terminal, multiple selection connection ends and the selection member are arranged on the shell. The second connection terminal is connected to the selection member through the first wire connection. One of the conductive connecting members in each of the installation components is connected to the first connection terminal through the second wire connection. The multiple selection connection ends are connected one-to-one with another conductive connecting member in the multiple installation components through the multiple third wire connections.

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