Electronic device, lighting device and motor vehicle

Abstract

The invention provides an electronic assembly which comprises a first electronic module and a second electronic module, the first electronic module comprises a first connector and a first circuit electrically connected with the first connector, the first connector comprises a connector position confirming terminal and a plurality of functional terminals comprising a multiplexing terminal, the connector position confirmation terminal and the multiplexing terminal are electrically connected together through a position confirmation detection branch in the first circuit, the connector position confirmation terminal and the multiplexing terminal are used for transmitting a position confirmation signal, and the plurality of functional terminals are used for transmitting other functional signals different from the position confirmation signal; the second electronic module comprises a second connector and a second circuit electrically connected with the second connector, the second connector comprises a plurality of functional pins, and the plurality of functional pins comprise a multiplexing pin; wherein the second connector and the first connector are assembled together, and when the multiplexing pin and the multiplexing terminal are electrically connected correctly, the plurality of functional pins and the plurality of functional terminals are correspondingly and electrically connected correctly.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and more specifically, to an electronic component, a lighting device and a motor vehicle. Background Art

[0002] Connectors are widely used in various electronic components to electrically connect two components together. However, since connectors may not be properly connected during assembly, it is necessary to check whether the connectors are assembled correctly after assembly to ensure that the two components are electrically connected correctly, which is crucial for the subsequent normal use of the electronic components.

[0003] The connector position assurance (CPA) pin is specifically designed to solve this technical problem, using the connection status of some connector pins to reflect the connection status of the entire connector. If the connector position assurance pin is connected correctly, the other pins of the connector are also connected correctly.

[0004] In addition to mechanical connector position confirmation solutions, electronic detection connector position confirmation solutions are also increasingly being used. However, the applicant found that the connector position confirmation pins require additional space and are idle after the test is completed, resulting in a waste of resources. Summary of the invention

[0005] An object of the present application is to overcome at least one of the problems and drawbacks in the prior art.

[0006] The first aspect of the present application provides an electronic component, which includes a first electronic module and a second electronic module, the first electronic module includes a first connector and a first circuit electrically connected to the first connector, the first connector includes a connector position confirmation terminal and multiple functional terminals, the multiple functional terminals include a multiplexing terminal, the connector position confirmation terminal and the multiplexing terminal are electrically connected together through a position confirmation detection branch in the first circuit, the connector position confirmation terminal and the multiplexing terminal are used to transmit a position confirmation signal, and the multiple functional terminals are used to transmit other functional signals different from the position confirmation signal; the second electronic module includes a second connector and a second circuit electrically connected to the second connector, the second connector includes multiple functional pins corresponding to the multiple functional terminals, the multiple functional pins include a multiplexing pin corresponding to the multiplexing terminal; wherein the second connector and the first connector are assembled together, and when the multiplexing pin and the multiplexing terminal are electrically connected correctly, the multiple functional pins and the multiple functional terminals are electrically connected correctly.

[0007] In some embodiments, in a testing state, the position confirmation signal is input between the connector position confirmation terminal and the multiplexing pin to detect whether the multiplexing pin and the multiplexing terminal are electrically connected correctly; in an operating state, the multiplexing pin and the multiplexing terminal are used to transmit a other functional signal that is different from the position confirmation signal.

[0008] In some embodiments, the position confirmation detection branch includes a first resistor, the position confirmation signal is a voltage signal, and whether the multiplexed pin and the multiplexed terminal are electrically connected correctly is determined by detecting the current of the position confirmation detection branch; or, the detection signal is a current signal, and whether the multiplexed pin and the multiplexed terminal are electrically connected correctly is determined by detecting the voltage at both ends of the position confirmation detection branch.

[0009] In some embodiments, the multiplexing pin and the multiplexing terminal are grounded.

[0010] In some embodiments, the multiplexing pin and the multiplexing terminal are used to transmit a category detection signal, a temperature detection signal, a driving signal or a power signal.

[0011] In some embodiments, the first circuit includes a category detection branch, a temperature detection branch, and an LED branch; and the second circuit includes an LED driving circuit.

[0012] In some embodiments, the electronic component further includes a third connector, the third connector including a first terminal and a second terminal, the first terminal is electrically connected to the connector position confirmation terminal, and the second terminal is electrically connected to the multiplexing pin through the second circuit.

[0013] In some embodiments, in a test state, a test module is electrically connected between the first terminal and the second terminal, and the test module outputs the position confirmation signal to the first terminal and the second terminal to detect whether the multiplexed pin and the multiplexed terminal are electrically connected correctly.

[0014] In some embodiments, the second connector further includes a connector position confirmation pin, and the connector position confirmation pin is correspondingly installed and connected with the connector position confirmation terminal.

[0015] In some embodiments, under the test state, the position confirmation signal is input between the connector position confirmation pin and the multiplexing pin to detect whether the multiplexing pin and the multiplexing terminal are electrically connected correctly, and whether the connector position confirmation pin and the connector position confirmation terminal are connected correctly.

[0016] A second aspect of the present application provides a lighting device, which includes the electronic components provided in the first aspect and the above embodiments.

[0017] A third aspect of the present application provides a motor vehicle, comprising the lighting device provided in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A first circuit schematic diagram of an electronic component provided in an embodiment of the present application;

[0019] Figure 2 for Figure 1 The circuit schematic diagram of the position confirmation detection branch of the electronic component shown;

[0020] Figure 3 A second circuit schematic diagram of an electronic component provided in an embodiment of the present application;

[0021] Figure 4 A third circuit schematic diagram of the electronic component provided in an embodiment of the present application;

[0022] Figure 5 A fourth circuit schematic diagram of the electronic component provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that the embodiments of the present application are mainly for illustrating possible implementation methods of the technical solution of the present application and should not be understood as limiting the technical solution of the present application. In this specification, the same or similar parts are indicated by the same or similar reference numerals.

[0024] Figure 1 A first circuit schematic diagram of an electronic component provided in an embodiment of the present application. Figure 2 for Figure 1 The circuit schematic diagram of the position confirmation detection branch of the electronic component shown is omitted Figure 1 The resistance of R6 is 0 ohm.

[0025] like Figure 1 , 2As shown, an embodiment of the present application provides an electronic component 100, which includes a first electronic module 10 and a second electronic module 20. The first electronic module 10 includes a first connector 11 and a first circuit 12 electrically connected to the first connector 11. The first connector 11 includes a connector position confirmation terminal T_CPA1 and multiple functional terminals, such as a category detection terminal T_BIN, a temperature detection terminal T_NTC, and an output terminal T_BIN_NTC. The multiple functional terminals include a multiplexing terminal T_CPA2, for example, the output terminal T_BIN_NTC is used as the multiplexing terminal T_CPA2. The connector position confirmation terminal T_CPA1 and the multiplexing terminal T_CPA2 are electrically connected together through the position confirmation detection branch B1 in the first circuit 12, and the connector position confirmation terminal T_CPA1 and the multiplexing terminal T_CPA2 are used to transmit a position confirmation signal; the multiple functional terminals are used to transmit other functional signals different from the position confirmation signal. That is, the multiplexing terminal T_CPA2 can be used to transmit both the position confirmation signal and other functional signals different from the position confirmation signal.

[0026] The second electronic module 20 includes a second connector 21 and a second circuit 22 electrically connected to the second connector 21. The second connector 21 includes a plurality of functional pins corresponding to a plurality of functional terminals, such as a category detection pin P_BIN, a temperature detection pin P_NTC, and an input pin P_BIN_NTC. The plurality of functional pins include a multiplexing pin P_CPA2 corresponding to the multiplexing terminal T_CPA2, for example, the input pin P_BIN_NTC is used as the multiplexing pin P_CPA2.

[0027] The second connector 21 and the first connector 11 are assembled together, for example, they are connected together along the direction shown by the dotted line to electrically connect the first circuit 12 and the second circuit 22. The multiplexing terminal T_CPA2 is used as a terminal to confirm whether the first connector 11 and the second connector 21 are correctly installed. When the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly, it means that all the functional pins and all the functional terminals are electrically connected correctly, so that the first circuit 12 and the second circuit 22 are correctly electrically connected together.

[0028] In this embodiment, it can be confirmed that all functional pins and all functional terminals are correctly electrically connected by confirming that the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are correctly electrically connected. At the same time, the multiplexing terminal T_CPA2 is not a separate terminal additionally provided to confirm whether the first connector 11 and the second connector 21 are correctly assembled, but other multiplexed functional terminals. In this way, one terminal can be saved on the second connector 21, thereby achieving the technical effect of saving space and cost.

[0029] In the test state, a position confirmation signal can be input between the connector position confirmation terminal T_CPA1 and the multiplexing pin P_CPA2 to detect whether the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly. In the running state, the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are used to transmit a functional signal other than the position confirmation signal. In this way, the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 will not be idle in the running state, and the resources of the first connector 11 terminal and the resources of the second connector 21 pin will be fully utilized.

[0030] Some embodiments are given below to specifically explain how to confirm whether the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly. Figure 1 , 2 As shown, the position confirmation detection branch B1 is electrically connected between the connector position confirmation terminal T_CPA1 and the multiplexing terminal T_CPA2, and the position confirmation detection branch B1 can be configured to include a first resistor R1.

[0031] In some embodiments, the position confirmation signal can be set to a voltage signal. For example, the connector position confirmation terminal T_CPA1 is used as the input end of the voltage signal, and the multiplexing pin P_CPA2 is used as the output end of the voltage signal. By detecting the current of the position confirmation detection branch B1, it is determined whether the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly. If a current value of matching size is detected, it means that the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly; if the current value is detected to be 0, it means that the position confirmation detection branch B1 is in an open circuit state, and the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are not electrically connected correctly.

[0032] In other embodiments, the detection signal may also be set as a current signal. For example, the connector position confirmation terminal T_CPA1 is used as the input end of the current signal, and the multiplexing pin P_CPA2 is used as the output end of the current signal. By detecting the voltage at both ends of the position confirmation detection branch B1, it is determined whether the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are correctly electrically connected. If a voltage value of matching size is detected, it means that the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are correctly electrically connected; if the voltage value detected is 0, it means that the position confirmation detection branch B1 is in an open circuit state, and the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are not correctly electrically connected.

[0033] It is worth noting that, although the above embodiments give some specific examples of functional terminals and functional pins, it should be understood that the functional terminals and functional pins of the present application may not be limited to the above categories, and may also be other functional terminals and functional pins adapted to different application scenarios. As long as the functional terminal as a multiplexed terminal and the functional pin as a multiplexed pin can be used as another connector position confirmation terminal in the test state, and can normally realize its originally set target function in the running state, it is sufficient.

[0034] In some embodiments, the electronic component 100 can be used in a lighting device of a motor vehicle. In this application, the second circuit 22 is configured to include an LED driving circuit. The first circuit 12 includes a category detection branch B2, a temperature detection branch B3, and an LED branch (not shown), etc. . The functional terminals of the first connector 11 may include a category detection terminal T_BIN, a temperature detection terminal T_NTC, and an output terminal T_BIN_NTC. The category detection branch B2 includes a BIN resistor R2 and a resistor R4 connected in series; the category detection branch B2 is electrically connected between the category detection terminal T_BIN and the output terminal T_BIN_NTC to detect the category of the LED in the LED branch, and the corresponding BIN resistor R2 is selected based on the detection result. The temperature detection branch B3 includes a thermistor RT and a resistor R3 connected in parallel, and a resistor R5 connected in series with the two after the parallel connection; the temperature detection branch B3 is electrically connected between the temperature detection terminal T_NTC and the output terminal T_BIN_NTC to detect the ambient temperature of the LED branch.

[0035] Correspondingly, the second connector 21 includes a category detection pin P_BIN, a temperature detection pin P_NTC and an input pin P_BIN_NTC. When the first connector 11 and the second connector 21 are correctly assembled together, the category detection terminal T_BIN is electrically connected to the category detection pin P_BIN, the temperature detection terminal T_NTC is electrically connected to the temperature detection pin P_NTC, and the output terminal T_BIN_NTC is electrically connected to the input pin P_BIN_NTC, that is, they are electrically connected along the dotted lines.

[0036] like Figure 1 , 2As shown, the output terminal T_BIN_NTC can be used as the multiplexing terminal T_CPA2, and the input pin P_BIN_NTC can be used as the multiplexing pin P_CPA2. The first end of the position confirmation detection branch B1 is electrically connected to the connector position confirmation terminal T_CPA1, and the second end of the position confirmation detection branch B1 is electrically connected to the output terminal T_BIN_NTC. In this circuit, the output terminal T_BIN_NTC is grounded GND; correspondingly, the input pin P_BIN_NTC is also set to ground. By setting the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 to ground, when the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly, the ground of the first circuit 12 and the ground of the second circuit 22 will be correctly electrically connected together.

[0037] Figure 3 The second circuit schematic diagram of the electronic component provided in the embodiment of the present application. Figure 3 As shown, the multiplexing terminal T_CPA2 can also be set to be non-common ground, that is, the output terminal T_BIN_NTC is no longer used as the multiplexing terminal T_CPA2, but the category detection terminal T_BIN or the temperature detection terminal T_NTC is used as the multiplexing terminal T_CPA2. At this time, the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 can be used to transmit the category detection signal or the temperature detection signal in the running state.

[0038] For example, the category detection terminal T_BIN is used as the multiplexing terminal T_CPA2, and the category detection pin P_BIN is used as the multiplexing pin P_CPA2. Figure 3 The first connecting branch L1 is shown in the figure, the first end of the position confirmation detection branch B1 is electrically connected to the connector position confirmation terminal T_CPA1, and the second end of the position confirmation detection branch B1 is electrically connected to the category detection terminal T_BIN through the first connecting branch L1.

[0039] For another example, the temperature detection terminal T_NTC is used as the multiplexing terminal T_CPA2, and the category detection pin P_BIN is used as the multiplexing pin P_CPA2. Figure 3 The second connecting branch L2 is shown in the figure, the first end of the position confirmation detection branch B1 is electrically connected to the connector position confirmation terminal T_CPA1, and the second end of the position confirmation detection branch B1 is electrically connected to the temperature detection terminal T_NTC through the second connecting branch L2.

[0040] In addition to the functional terminals listed in the above embodiments that can be used as the multiplexing terminal T_CPA2, LED drive terminals, power terminals or other functional terminals (not shown) can also be used as multiplexing terminal T_CPA2. In this case, the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are used to transmit LED drive signals, power signals or other functional signals. The present application does not limit the type of functional signal specifically transmitted by the functional terminal, as long as it is distinguished from the position confirmation signal.

[0041] Figure 4 This is a third circuit schematic diagram of the electronic component provided in the embodiment of the present application. Figure 4 As shown, in some embodiments, the electronic component 100 further includes a third connector 31, and the third connector 31 includes a first terminal t1 and a second terminal t2. The first terminal t1 is electrically connected to the connector position confirmation terminal T_CPA1, and the second terminal t2 is electrically connected to the multiplexing pin P_CPA2 through the second circuit.

[0042] In particular, when the electronic assembly 100 is used in a lighting device for a motor vehicle, after the entire lighting device is assembled, the first connector 11 and the second connector 21 are often encapsulated inside the lighting device, which is not convenient for directly using them as a test interface to detect whether the first connector 11 and the second connector 21 are correctly connected. The third connector 31 is often used as an interface for external connection of the entire electronic assembly 100, so the third connector 31 can be used as a test interface to facilitate external detection of whether the first connector 11 and the second connector 21 are correctly connected.

[0043] Specifically, in the test state, a test module 200 is electrically connected between the first terminal t1 and the second terminal t2. The test module 200 may be a voltage source or a current source. The test module 200 inputs a position confirmation signal to the first terminal t1 and the second terminal t2 to detect whether the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly. The specific detection method can be referred to the aforementioned embodiment, which will not be repeated here.

[0044] Figure 5 This is a fourth circuit schematic diagram of the electronic component provided in the embodiment of the present application. Figure 5 As shown, in some embodiments, the second connector 21 can be used as an interface for external testing. For example, the second connector 21 further includes a connector position confirmation pin P_CPA1, and the connector position confirmation pin P_CPA1 is correspondingly installed and connected to the connector position confirmation terminal T_CPA1.

[0045] In the test state, a position confirmation signal can be directly input between the connector position confirmation pin P_CPA1 and the multiplexing pin P_CPA2 to detect whether the multiplexing pin P_CPA2 and the multiplexing terminal T_CPA2 are electrically connected correctly, and whether the connector position confirmation pin P_CPA1 and the connector position confirmation terminal T_CPA1 are connected correctly. If a matching detection signal can be obtained, it means that the first connector 11 and the second connector 21 are electrically connected correctly.

[0046] It is worth noting that the present application does not limit the specific structural forms of the first connector 11, the second connector 21 and the third connector 31, as long as they include terminals for electrical connection. For example, the first connector 11, the second connector 21 and the third connector 31 can be male connectors, female connectors, card edge connectors or conductive terminals on a circuit board, etc.

[0047] The embodiment of the present application also provides a lighting device, which includes the electronic component 100 in any of the above embodiments. The lighting device can be used as a headlight, a daytime running light and / or a turn signal light of a motor vehicle.

[0048] An embodiment of the present application further provides a motor vehicle, which includes the lighting device in any of the above embodiments.

[0049] Although the present application is described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred embodiments of the present application and should not be construed as limiting the present application. The size ratios in the accompanying drawings are merely illustrative and should not be construed as limiting the present application.

[0050] Although some embodiments of the overall concept of the present application have been shown and described, those skilled in the art will understand that the present application may include more other equivalent embodiments without departing from the overall inventive concept of the present application, and the protection scope of the present application is defined by the claims.

Claims

1. An electronic component (100), characterized in that: include: A first electronic module (10), comprising a first connector (11) and a first circuit (12) electrically connected to the first connector (11), the first connector (11) comprising a connector position confirmation terminal (T_CPA1) and a plurality of functional terminals, the plurality of functional terminals comprising a multiplexing terminal (T_CPA2), the connector position confirmation terminal (T_CPA1) and the multiplexing terminal (T_CPA2) being electrically connected together via a position confirmation detection branch (B1) in the first circuit (12), the connector position confirmation terminal (T_CPA1) and the multiplexing terminal (T_CPA2) being used to transmit a position confirmation signal, and the plurality of functional terminals being used to transmit other functional signals different from the position confirmation signal; and A second electronic module (20), comprising a second connector (21) and a second circuit (22) electrically connected to the second connector (21), wherein the second connector (21) comprises a plurality of functional pins corresponding to the plurality of functional terminals, and the plurality of functional pins comprises a multiplexing pin (P_CPA2) corresponding to the multiplexing terminal (T_CPA2); The second connector (21) and the first connector (11) are assembled together, and when the multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are electrically connected correctly, the multiple functional pins and the multiple functional terminals are electrically connected correctly accordingly.

2. The electronic component according to claim 1, characterized in that In a test state, the position confirmation signal is input between the connector position confirmation terminal (T_CPA1) and the multiplexing pin (P_CPA2) to detect whether the multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are electrically connected correctly; In the running state, the multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are used to transmit a functional signal other than the position confirmation signal.

3. The electronic component according to claim 2, characterized in that The position confirmation detection branch includes a first resistor (R1), The position confirmation signal is a voltage signal, and whether the multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are correctly electrically connected is determined by detecting the current of the position confirmation detection branch (B1); or, the detection signal is a current signal, and whether the multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are correctly electrically connected is determined by detecting the voltage at both ends of the position confirmation detection branch (B1).

4. The electronic component according to claim 1, characterized in that The multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are grounded (GND).

5. The electronic component according to claim 1, characterized in that The multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are used to transmit a category detection signal, a temperature detection signal, a driving signal or a power signal.

6. The electronic component according to claim 5, characterized in that The first circuit (12) comprises a category detection branch (B2), a temperature detection branch (B3) and an LED branch; The second circuit (22) includes an LED driving circuit.

7. The electronic component according to any one of claims 1 to 6, characterized in that: The electronic component further comprises a third connector (31), the third connector comprising a first terminal (t1) and a second terminal (t2), The first terminal (t1) is electrically connected to the connector position confirmation terminal (T_CPA1), and the second terminal (t2) is electrically connected to the multiplexing pin (P_CPA2) through the second circuit.

8. The electronic component according to claim 7, characterized in that: In a test state, a test module (200) is electrically connected between the first terminal (t1) and the second terminal (t2), and the test module (200) outputs the position confirmation signal to the first terminal (t1) and the second terminal (t2) to detect whether the multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are electrically connected correctly.

9. The electronic component according to any one of claims 1 to 6, characterized in that: The second connector (21) further comprises a connector position confirmation pin (P_CPA1), and the connector position confirmation pin (P_CPA1) is correspondingly installed and connected with the connector position confirmation terminal (T_CPA1).

10. The electronic component according to claim 9, characterized in that In the test state, the position confirmation signal is input between the connector position confirmation pin (P_CPA1) and the multiplexing pin (P_CPA2) to detect whether the multiplexing pin (P_CPA2) and the multiplexing terminal (T_CPA2) are electrically connected correctly, and whether the connector position confirmation pin (P_CPA1) and the connector position confirmation terminal (T_CPA1) are connected correctly.

11. A lighting device, characterized in that: The lighting device comprises the electronic component according to any one of claims 1-10.

12. A motor vehicle, characterized in that: The motor vehicle comprises a lighting device according to claim 11 .

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