Automobile LED lamp maintenance and detection device

Abstract

The utility model provides an automobile LED lamp overhauling and detecting device. The automobile LED lamp overhauling and detecting device comprises a shell; an inner cavity is formed in the shell; an opening communicated with the inner cavity is formed in the bottom of the shell; a sealing cover which can be closed or opened is arranged on the opening; a power storage module; the power storage module is installed in an inner cavity of the shell. A control module; the control module is installed in an inner cavity of the shell. The control module is electrically connected with the power storage module; a connection terminal; the connecting terminal is installed on the outer side of the front end of the shell and connected with the control module of the inner cavity through a circuit. The shell is provided with a button, and the button is electrically connected with the control module. According to the utility model, the defect that the use is inconvenient when the vehicle LED headlamps are tested in the prior art is overcome, the input and update of control parameters are input and updated into the control module through the input device, and the parameters of the output power supply can be adjusted in real time, so that the vehicle LED headlamps can be adapted to different vehicle LED headlamps.

Description

Technical Field

[0001] This utility model belongs to the field of automotive repair and testing technology, and specifically relates to an automotive LED light inspection and testing device. Background Technology

[0002] Automotive LED lights are light-emitting diode (LED) lamps used in automotive lighting systems and are widely used in the modern automotive industry. Automotive LED lights generally include headlights, fog lights, turn signals, brake lights, and interior lighting fixtures (such as dome lights and reading lights). Although automotive-grade performance requirements make automotive LED lights much more reliable than ordinary household LED lights, the sheer number of them on each vehicle and the large number of cars on the road has led to a rapid increase in the number of malfunctioning automotive LED lights.

[0003] After repairing faulty automotive LED lights, they need to be tested to ensure they pass inspection. Currently, after testing automotive LED headlights at repair stations, they need to be taken to the vehicle and connected to the vehicle's wiring before testing. This process is cumbersome, inconvenient, and time-consuming. Furthermore, the equipment for automatically testing automotive LED headlights is generally located in the manufacturing plant, which is not only expensive but also bulky and inconvenient to use.

[0004] Therefore, there is a need for a vehicle LED light inspection and testing device. Utility Model Content

[0005] The purpose of this invention is to provide a vehicle LED headlight inspection and testing device, thereby overcoming the inconvenience of using existing testing technologies for testing vehicle LED headlights. The specific technical solution is as follows:

[0006] A vehicle LED light inspection and testing device, comprising:

[0007] The outer casing has an internal cavity; the bottom of the outer casing has an opening communicating with the internal cavity; the opening has a cover that can be closed or opened.

[0008] Energy storage module; the energy storage module is installed in the inner cavity of the outer casing;

[0009] A control module; the control module is installed in the inner cavity of the housing; the control module is electrically connected to the energy storage module;

[0010] Connection terminal; the connection terminal is installed on the front outer side of the housing and is connected to the control module of the inner cavity through a line to receive the power output and adjustment of the control module;

[0011] The housing is equipped with a button, which is electrically connected to the control module to control whether to output the adjusted power to the automotive LED lights.

[0012] Furthermore, the control module includes a power conversion circuit, a control circuit, a drive circuit, and an output circuit;

[0013] The power conversion circuit is connected to the energy storage module, the control circuit, and the drive circuit respectively, so as to convert the output power of the energy storage module into control power and output it to the control circuit and the drive circuit.

[0014] The drive circuit is connected to the energy storage module and the output circuit respectively, so as to convert the output power of the energy storage module into drive power and output it to the output circuit according to the signal of the control circuit.

[0015] The output circuit is electrically connected to the connection terminal, and the drive power supply is used as the adjusted power output.

[0016] Furthermore, the power conversion circuit includes capacitors C1, C2, and C3 and a conversion processor U4; capacitor C1 is connected in parallel across the output power terminals of the energy storage module; the VIN and EN pins of the conversion processor U4 are connected to the positive terminal of the energy storage module, the GND pin is connected to the negative terminal of the energy storage module, and the OUT pin outputs the converted control power; capacitors C2 and C3 are connected in parallel across the OUT pin of the conversion processor U4 and the negative terminal of the energy storage module.

[0017] Furthermore, the driving circuit includes transistors Q1 and Q3, a MOSFET Q4, a coupling inductor U11, a capacitor C4, and a diode D2; transistor Q1 is a PNP transistor, and transistor Q3 is an NPN transistor; the emitter of transistor Q3 is connected in series with the emitter of transistor Q1 and then connected to the gate (G) of MOSFET Q4; the collector of transistor Q3 is connected to the control power supply; the collector of transistor Q1 is grounded; the bases of transistors Q3 and Q1 are connected to the signal of the control circuit; the first end of the primary winding of the coupling inductor U11 is connected to the output power supply of the energy storage module, and the second end is connected to the drain (D) of MOSFET Q4; the first end of the secondary winding of the coupling inductor U11 is grounded to GND, and the second end is connected to the anode of diode D2; the capacitor C4 is connected in parallel across the anode of diode D2 and the drain of MOSFET Q4; the cathode of diode D2 serves as the output terminal for outputting the driving power supply.

[0018] Furthermore, the output circuit includes a capacitor C8 and a resistor R6; the first end of the capacitor C8 and the first end of the resistor R6 are connected to ground; the second end of the capacitor C8 is connected to the driving power supply; the second end of the capacitor C8 and the second end of the resistor R6 serve as the output terminals of the output circuit and are connected to the connection terminals.

[0019] Furthermore, the control circuit includes a processor U1; the VCC pin of the processor U1 is connected to the control power supply, the OUT pin is connected to the base of transistor Q3 and transistor Q1 to control the operation of the drive circuit, and the GND pin is grounded to GND.

[0020] Furthermore, it also includes a detection circuit; the detection circuit includes resistor R4 and resistor R9; the first end of resistor R4 is connected to the second end of capacitor C8; the second end of resistor R4 is connected in series with resistor R9 and then grounded; the FB pin of processor U1 is connected to the second end of resistor R4.

[0021] Furthermore, it also includes a display circuit; the display circuit includes a signal amplifier U3, a capacitor C9, a resistor R5, a resistor R8, and a light-emitting diode LED1; the capacitor C9 is connected in parallel to the output terminal and the inverting input terminal of the signal amplifier U3; the second terminal of the resistor R5 is connected in series with the second terminal of the resistor R8; the first terminal of the resistor R5 is grounded to GND, and the first terminal of the resistor R8 is connected to the control power supply; the output terminal of the signal amplifier U3 is connected to the anode of the light-emitting diode LED1; the cathode of the light-emitting diode LED1 is connected to the second terminal of the resistor R4.

[0022] Furthermore, the top of the housing is provided with a handle; the button is located on the handle.

[0023] Furthermore, the energy storage module uses a lithium battery.

[0024] Furthermore, it also includes an input device; the input device is connected to the control module to input control parameters.

[0025] Compared with existing technologies, this utility model has the following beneficial effects:

[0026] 1. This utility model overcomes the inconvenience of using existing testing technologies to test automotive LED headlights.

[0027] 2. By inputting and updating control parameters into the control module through the input device, the parameters of the output power supply can be adjusted in real time to adapt to different automotive LED headlights. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of a vehicle LED light inspection and testing device.

[0030] Figure 2 This is a schematic diagram of the circuit structure of the control module.

[0031] Explanation of main reference numerals: 1. Housing; 11. Handle; 12. Button; 13. Input device; 14. Connection terminal; 15. Cover; 2. Energy storage module; 3. Control module. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0036] Example 1

[0037] like Figure 1 The diagram shows a structural schematic of an automotive LED light inspection and testing device, which includes:

[0038] The outer shell 1 has a cylindrical structure on its side, and a planar structure on its top and bottom surfaces, with an inner cavity inside. The bottom of the outer shell 1 has an opening that connects to the inner cavity. The opening has a cover 15 that can be closed or opened, one for facilitating opening the inner cavity and the other to provide a flat surface to prevent the outer shell 1 from rolling.

[0039] Energy storage module 2; the energy storage module 2 is installed in the inner cavity of the outer casing 1;

[0040] Control module 3; the control module 3 is installed in the inner cavity of the outer casing 1; the control module 3 is electrically connected to the energy storage module 2;

[0041] Connection terminal 14; The connection terminal 14 is installed on the front outer side of the housing 1 and is connected to the control module 3 of the inner cavity through a line to receive the power output and adjustment of the control module 3;

[0042] The housing 1 is provided with a button 12, which is electrically connected to the control module 3 to control whether to output the adjusted power to the car LED lights.

[0043] Furthermore, the outer shell 1 is made of plastic material. For example, polycarbonate (PC) material has high transparency, good impact resistance and dimensional stability; acrylonitrile-butadiene-styrene copolymer (ABS) has good mechanical properties, high hardness and good surface gloss. ABS material is used to create an exquisite appearance and is easy to process and mold, and can be manufactured into various complex shapes through injection molding.

[0044] In specific implementation, the control module 3 adopts a circuit board structure, which includes a power conversion circuit, a control circuit, a drive circuit, and an output circuit. The power conversion circuit is connected to the energy storage module 2, the control circuit, and the drive circuit respectively to convert the output power of the energy storage module 2 into control power and output it to the control circuit and the drive circuit. The drive circuit is connected to the energy storage module 2 and the output circuit respectively to convert the output power of the energy storage module 2 into drive power and output it to the output circuit according to the signal of the control circuit. The output circuit is electrically connected to the connection terminal 14 to output the drive power as the adjusted power.

[0045] Furthermore, the power conversion circuit includes capacitors C1, C2, and C3 and a conversion processor U4. Capacitor C1 is connected in parallel across the output power of the energy storage module 2. The VIN and EN pins of the conversion processor U4 are connected to the positive terminal of the energy storage module 2, the GND pin is connected to the negative terminal of the energy storage module 2, and the OUT pin outputs the converted control power. Capacitors C2 and C3 are connected in parallel between the OUT pin of the conversion processor U4 and the negative terminal of the energy storage module 2. Specifically, capacitor C1 is used for voltage regulation and filtering of the output power of the energy storage module 2, and capacitors C2 and C3 are used for voltage regulation and filtering of the converted control power, resulting in higher accuracy of the control power and meeting the power requirements of the control and drive circuits.

[0046] Furthermore, the driving circuit includes transistors Q1 and Q3, a MOSFET Q4, a coupling inductor U11, a capacitor C4, and a diode D2; transistor Q1 is a PNP transistor, and transistor Q3 is an NPN transistor; the emitter of transistor Q3 is connected in series with the emitter of transistor Q1 and then connected to the gate (G) of MOSFET Q4; the collector of transistor Q3 is connected to the control power supply; the collector of transistor Q1 is grounded; the bases of transistors Q3 and Q1 are connected to the signal of the control circuit; the first end of the primary winding of the coupling inductor U11 is connected to the output power supply of the energy storage module 2, and the second end is connected to the drain (D) of MOSFET Q4; the first end of the secondary winding of the coupling inductor U11 is grounded to GND, and the second end is connected to the anode of diode D2; the capacitor C4 is connected in parallel across the anode of diode D2 and the drain of MOSFET Q4; the cathode of diode D2 serves as the output terminal for outputting the driving power supply. The control circuit sends control signals to the bases of transistors Q1 and Q3 to control the on / off time or duty cycle of MOSFET Q4, thereby controlling the switching of coupling inductor U11 and the output voltage. Diode D2 is used to prevent reverse current flow caused by power supply fluctuations. A coupling inductor is a circuit element composed of two or more inductor coils with magnetic coupling. When the current in one coil changes, the resulting magnetic field passes through the other coils, inducing an electromotive force in them. When MOSFET Q4 is on, the drive circuit is grounded, and current flows through coupling inductor U11. At the instant MOSFET Q4 is off, coupling inductor U11 still maintains current, charging capacitor C4. Therefore, the duty cycle of MOSFET Q4 determines the magnitude of the output voltage of coupling inductor U11.

[0047] Furthermore, the output circuit includes a capacitor C8 and a resistor R6; the first end of the capacitor C8 and the first end of the resistor R6 are connected to ground; the second end of the capacitor C8 is connected to the driving power supply; the second end of the capacitor C8 and the second end of the resistor R6 serve as the output terminals of the output circuit and are connected to the connection terminal 14.

[0048] Furthermore, the control circuit includes a processor U1; the VCC pin of the processor U1 is connected to the control power supply, the OUT pin is connected to the bases of transistors Q3 and Q1 to control the operation of the drive circuit, and the GND pin is grounded to GND. Furthermore, the control circuit also includes capacitor C10, resistor R1, capacitor C7, capacitor C6, and resistor R2. Capacitor C10 is connected in parallel between the VCC pin of the processor U1 and ground; capacitor C6 and resistor R2 are connected in parallel between the OSC pin of the processor U1 and ground; and capacitor C7 is connected in parallel between the COMP pin of the processor U1 and ground. Furthermore, the processor U1 is an FP5139BWR-LF model. Of course, the processor U1 can also use other processors with data processing and control functions, such as microcontrollers or DSPs.

[0049] Furthermore, a detection circuit is also included; the detection circuit includes resistors R4 and R9; the first end of resistor R4 is connected to the second end of capacitor C8; the second end of resistor R4 is connected in series with resistor R9 and then grounded; the FB pin of processor U1 is connected to the second end of resistor R4. The detection circuit is used to detect the voltage of the output power supply, and after voltage conversion through resistors R4 and R9, it feeds back to processor U1.

[0050] Furthermore, it also includes a display circuit; the display circuit includes a signal amplifier U3, a capacitor C9, resistors R5 and R8, and a light-emitting diode (LED1); the capacitor C9 is connected in parallel to the output terminal and the inverting input terminal of the signal amplifier U3; the second terminal of the resistor R5 is connected in series with the second terminal of the resistor R8; the first terminal of the resistor R5 is grounded (GND), and the first terminal of the resistor R8 is connected to the control power supply; the output terminal of the signal amplifier U3 is connected to the anode of the LED1; the cathode of the LED1 is connected to the second terminal of the resistor R4. A voltage signal is input to the non-inverting input terminal of the signal amplifier U3. When the voltage exceeds the voltage at the inverting input terminal, the output terminal outputs a high level, which drives the LED1 to emit light, thus achieving the purpose of displaying the presence of current and voltage in the detection circuit. This method is simpler, more reliable, and more economical than using a complex display screen.

[0051] In a specific implementation, the top of the outer casing 1 is provided with a handle 11; the button 12 is located on the handle 11. The edges of the handle 11 are rounded to conform to ergonomic design, taking into account the comfort of the hand grip, and usually have a certain curvature to fit the curve of the palm. Furthermore, the button 12 is located at the front of the handle 11, and is laid out according to the operating habits of the fingers for convenient clicking and operation by the user; furthermore, the button 12 can be connected to the BR / CTL pin on the processor U1. Pressing the button 12 can switch the level of the BR / CTL pin, thereby achieving the purpose of input signal.

[0052] In specific implementation, the energy storage module 2 uses a rechargeable lithium battery to save on usage costs; alternatively, segmented dry cell batteries available on the market can also be used. Furthermore, the energy storage module 2 can be fixed within the inner cavity of the outer casing 1 in the following manner:

[0053] The battery module 2 is secured using a slot design. This involves creating a slot inside the housing 1 that matches the shape of the battery module 2. For example, there might be plastic slots on both sides inside the housing 1. The battery module 2 can be inserted along the slot, which is designed to be slightly smaller than the outer diameter of the battery module 2. The elasticity of the plastic secures the battery module 2, allowing it to be stably fixed inside the housing 1. This method facilitates the installation and removal of the battery module 2, allowing users to easily replace the battery.

[0054] Tape bonding, such as using double-sided tape to attach the battery module 2 to a designated location inside the casing 1, is typically an insulating tape with a certain degree of stickiness. This tape can prevent the battery from shaking inside the device and also serves as insulation.

[0055] The battery module 2 is secured to the mounting bracket (which can be of a common structure) within the inner cavity of the outer casing 1 using screws. The screws provide strong fixing force, ensuring that the battery module 2 remains in the correct position even when the equipment is subjected to vibration or impact. Furthermore, this fixing method facilitates the removal and replacement of the battery module by maintenance personnel when necessary.

[0056] A clamping plate secures the battery. The housing 1 contains a metal or plastic clamping plate that uses its elastic pressure to hold the battery in place. For example, a rotatable metal clamping plate is located on one side of the battery module 2. When the cover 15 is closed, the clamping plate presses the battery firmly against the inner wall of the housing 1. This method effectively prevents the battery from becoming loose, and the pressure of the clamping plate will not damage the battery.

[0057] The adhesive is used for fixing. This adhesive not only firmly attaches the battery module 2 to the inside of the casing 1, but also prevents moisture from entering the gap between the battery and the casing 1, ensuring the waterproof performance of the device.

[0058] In specific implementations, an input device 13 is also included; the input device 13 is connected to the control module 3 to input control parameters. Specific models include: a TFT-LCD module: capable of decoding JPEG format images, supporting the display of 24-bit color RGB image data and JPEG format images, character display, etc. It has multiple input data interfaces, such as TTL / CMOS interface, LDI interface, DVI interface, etc. An A8B AI8103BSE008516R0001 touchscreen module: applicable to industrial control systems such as PLCs, allowing input and operation via a touchscreen to achieve system control and monitoring. In addition, other devices with input functions can also be used.

[0059] Furthermore, the connection terminal 14 can be a pluggable terminal block or other connection terminal 14 with connection function. The specific structure can be determined according to the wiring terminal of the automotive LED light to be tested, and is not limited here.

[0060] In summary, this application provides an automotive LED headlight inspection and testing device, comprising: a housing; an inner cavity inside the housing; an opening at the bottom of the housing communicating with the inner cavity; a cover that can be closed or opened on the opening; a power storage module; the power storage module installed in the inner cavity of the housing; a control module; the control module installed in the inner cavity of the housing; the control module electrically connected to the power storage module; a connection terminal; the connection terminal installed on the outer front end of the housing and connected to the control module in the inner cavity via a circuit to receive power output adjusted by the control module; and a button on the housing, the button being electrically connected to the control module to control whether to output adjusted power to the automotive LED headlight. This invention overcomes the inconvenience of existing testing technologies for testing automotive LED headlights by allowing input and updating of control parameters into the control module via an input device, enabling real-time adjustment of the output power parameters to adapt to different automotive LED headlights.

[0061] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A device for inspecting and repairing automotive LED lights, characterized in that, include: The outer casing has an internal cavity; the bottom of the outer casing has an opening communicating with the internal cavity; the opening has a cover that can be closed or opened. Energy storage module; the energy storage module is installed in the inner cavity of the outer casing; Control module; The control module is installed inside the cavity of the housing; The control module is electrically connected to the energy storage module; Connection terminal; the connection terminal is installed on the front outer side of the housing and is connected to the control module of the inner cavity through a line to receive the power output and adjustment of the control module; The housing is equipped with a button, which is electrically connected to the control module to control whether to output the adjusted power to the automotive LED lights.

2. The automotive LED lamp inspection and testing device according to claim 1, characterized in that, The control module includes a power conversion circuit, a control circuit, a drive circuit, and an output circuit. The power conversion circuit is connected to the energy storage module, the control circuit, and the drive circuit respectively, so as to convert the output power of the energy storage module into control power and output it to the control circuit and the drive circuit. The drive circuit is connected to the energy storage module and the output circuit respectively, so as to convert the output power of the energy storage module into drive power and output it to the output circuit according to the signal of the control circuit. The output circuit is electrically connected to the connection terminal, and the drive power supply is used as the adjusted power output.

3. The automotive LED lamp inspection and testing device according to claim 2, characterized in that, The power conversion circuit includes capacitors C1, C2, and C3 and a conversion processor U4; capacitor C1 is connected in parallel across the output power terminals of the energy storage module; the VIN and EN pins of the conversion processor U4 are connected to the positive terminal of the energy storage module, the GND pin is connected to the negative terminal of the energy storage module, and the OUT pin outputs the converted control power; capacitors C2 and C3 are connected in parallel across the OUT pin of the conversion processor U4 and the negative terminal of the energy storage module.

4. The automotive LED lamp inspection and testing device according to claim 3, characterized in that, The driving circuit includes transistors Q1 and Q3, a MOSFET Q4, a coupling inductor U11, a capacitor C4, and a diode D2. Transistor Q1 is a PNP transistor, and transistor Q3 is an NPN transistor. The emitter of transistor Q3 is connected in series with the emitter of transistor Q1 and then connected to the gate (G) of MOSFET Q4. The collector of transistor Q3 is connected to the control power supply. The collector of transistor Q1 is grounded. The bases of transistors Q3 and Q1 are connected to the signal of the control circuit. The first end of the primary winding of the coupling inductor U11 is connected to the output power supply of the energy storage module, and the second end is connected to the drain (D) of MOSFET Q4. The first end of the secondary winding of the coupling inductor U11 is grounded (GND), and the second end is connected to the anode of diode D2. The capacitor C4 is connected in parallel across the anode of diode D2 and the drain of MOSFET Q4. The cathode of diode D2 serves as the output terminal for outputting the driving power supply.

5. The automotive LED lamp inspection and testing device according to claim 4, characterized in that, The output circuit includes a capacitor C8 and a resistor R6; the first end of the capacitor C8 and the first end of the resistor R6 are connected to ground; the second end of the capacitor C8 is connected to the driving power supply; the second end of the capacitor C8 and the second end of the resistor R6 serve as the output terminals of the output circuit and are connected to the connection terminals.

6. The automotive LED lamp inspection and testing device according to claim 4, characterized in that, The control circuit includes a processor U1; the VCC pin of the processor U1 is connected to the control power supply, the OUT pin is connected to the base of transistor Q3 and transistor Q1 to control the operation of the drive circuit, and the GND pin is grounded to GND.

7. The automotive LED lamp inspection and testing device according to claim 6, characterized in that, It also includes a detection circuit; the detection circuit includes resistor R4 and resistor R9; the first end of resistor R4 is connected to the second end of capacitor C8; the second end of resistor R4 is connected to ground in series with resistor R9; the FB pin of processor U1 is connected to the second end of resistor R4.

8. The automotive LED lamp inspection and testing device according to claim 7, characterized in that, It also includes a display circuit; the display circuit includes a signal amplifier U3, a capacitor C9, a resistor R5, a resistor R8, and a light-emitting diode LED1; the capacitor C9 is connected in parallel to the output terminal and the inverting input terminal of the signal amplifier U3; the second terminal of the resistor R5 is connected in series with the second terminal of the resistor R8; the first terminal of the resistor R5 is grounded to GND, and the first terminal of the resistor R8 is connected to the control power supply; the output terminal of the signal amplifier U3 is connected to the anode of the light-emitting diode LED1; the cathode of the light-emitting diode LED1 is connected to the second terminal of the resistor R4.

9. The automotive LED lamp inspection and testing device according to any one of claims 1 to 8, characterized in that, The top of the housing is provided with a handle; the button is located on the handle.

10. The automotive LED lamp inspection and testing device according to any one of claims 1 to 8, characterized in that, It also includes an input device; the input device is connected to the control module to input control parameters.

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