Automobile bumper wire harness detection device

Abstract

The utility model belongs to the technical field of automobile bumper wire harness detection, and particularly relates to an automobile bumper wire harness detection device which comprises a signal detection device, a detection display device and a power supply device. The signal detection device is used for detecting the on-off of a bumper wire harness and detecting whether each component on the front bumper and / or the rear bumper is reliably connected or not; the detection display device is used for displaying the on-off of the bumper wiring harness and whether each component on the front bumper and / or the rear bumper is reliably connected or not; and the power supply device is used for providing a stable direct-current power supply for the signal detection device and the detection display device. According to the utility model, whether the connection of each electric appliance element is safe and reliable is judged by detecting whether the electric appliance element installed in the circuit has current after being electrified, the detection device is simple and efficient, the visual effect is obvious, the rapid and autonomous detection of the abnormity of the bumper wiring harness can be realized, and the detection efficiency is improved. And the operation waste caused by heavy defective products due to the fact that defective products flow into the next project is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile bumper wire harness detection, in particular to an automobile bumper wire harness detection device. Background Art

[0002] The Automotive Manufacturing and Molding Division primarily produces RAV4 front and rear bumpers and instrument panels. The front and rear bumpers are molded using injection molding machines, then painted in the bumper spraying process. The bumper attachments are then installed and inspected on the assembly line before qualified parts are produced. During the installation of the bumper wiring harness and its components, ensuring the proper installation and connection of the harness and its components is crucial. Without dedicated on-site testing equipment, it's impossible to immediately confirm the proper installation and connection of the harness and its components. If a poorly assembled product is passed to the next stage of production, it will be classified as a critical defect, severely impacting the overall vehicle quality and increasing maintenance costs, including labor and energy. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an automobile bumper wiring harness detection device, which ensures that after the bumper wiring harness is assembled, it can realize rapid and autonomous detection of bumper wiring harness abnormalities, avoid defective products from flowing into the next project and causing heavy product defects, thereby avoiding work waste and improving work efficiency.

[0004] The technical solution adopted by the present invention to solve this problem is:

[0005] An automobile bumper wiring harness detection device, comprising:

[0006] A signal detection device, which is used to detect the continuity of the bumper wiring harness and whether the components on the front bumper and / or rear bumper are reliably connected;

[0007] A detection display device is used to display the continuity of the bumper wiring harness and whether the components on the front bumper and / or rear bumper are reliably connected;

[0008] The power supply device is used to provide a stable DC 12V power supply for the signal detection device and the detection display device.

[0009] In the above technical solution, the components on the front bumper and the rear bumper include fog lights and radars.

[0010] In the above technical solution, the signal detection device includes a bumper harness detection control box, a front bumper harness detection plug and a rear bumper harness detection plug, and the signal detection device and the power supply device are integrated in the bumper harness detection control box.

[0011] In the above technical solution, the power supply device includes a DC switching power supply.

[0012] In the above technical solution, the signal detection device includes a bumper harness detection system, the bumper harness detection system includes a front bumper detection system and a rear bumper detection system, and the front bumper detection system and the rear bumper detection system both include a fog lamp detection circuit and a radar detection circuit.

[0013] In the above technical solution, the detection and display device includes a low-power light emitting diode connected in series in the fog lamp detection circuit and the radar detection circuit.

[0014] In the above technical solution, the fog lamp detection circuit includes an air switch, a current limiting resistor and left and right fog lamps. After the front or rear bumper wiring harness detection plug is connected to the socket on the bumper, the DC switching power supply is connected in series with the air switch, the current limiting resistor, the light-emitting diode and the left and right fog lamps to form a current closed loop, and the light-emitting diode is connected in series in the current closed loop.

[0015] In the above technical solution, the radar detection circuit includes an air switch, a current limiting resistor and several radars. After the front or rear bumper wiring harness detection plug is connected to the socket on the bumper, the DC switching power supply is connected in series with the air switch, the current limiting resistor, the light-emitting diode and several radars to form a current closed loop, and the light-emitting diode is connected in series in the current closed loop.

[0016] In the above technical solution, the bumper wiring harness detection control box is connected to the front bumper wiring harness detection plug and the rear bumper wiring harness detection plug through the control box side cable respectively. The cable connecting ends of the front bumper wiring harness detection plug and the rear bumper wiring harness detection plug are provided with cable plug handles, and the cable plug handles are provided with fog lights and radar on / off indicator lights.

[0017] The advantages and positive effects of the present invention are as follows: the present invention adopts a method for detecting the current of electrical components, and judges whether the connection of each electrical component is safe and reliable by detecting whether current flows through each electrical component installed in the circuit after power is turned on; the detection device is simple and efficient, with obvious visual effect, which reduces the operator's poor contact caused by poor installation feel or deviation of the pins of individual electrical components, eliminates the waste of rework caused by defective products flowing into the next project, and improves work efficiency at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structures described herein and are not necessarily drawn to scale.

[0019] Figure 1 This is the external connection diagram of the bumper wiring harness detection device in the utility model;

[0020] Figure 2 This is the electrical schematic diagram of the bumper wiring harness detection device in this utility model;

[0021] Figure 3 This is the wiring diagram of the bumper harness detection control box in this utility model;

[0022] Figure 4 This is a schematic diagram of the front bumper and rear bumper wiring harness detection plugs and the detection display device in the bumper wiring harness detection device of the utility model;

[0023] Figure 5 This is a schematic diagram of the distribution of fog lights and anti-collision radar probes in the front bumper of the utility model;

[0024] Figure 6 This is a schematic diagram of the distribution of fog lights and reversing radar probes in the rear bumper of this utility model.

[0025] In the figure: 101-fog lamp and radar on-off indicator light; 102-control box side cable; 103-cable plug handle; 104-cable plug; 105-bumper side socket; 106-bumper side cable; 201-anti-collision radar ①; 202-anti-collision radar ②; 203-anti-collision radar ③; 204-anti-collision radar ④; 205-front fog lamp ①; 206-front fog lamp ②; 301-reversing radar ①; 302-reversing radar ②; 303-reversing radar ③; 304-reversing radar ④; 305-rear fog lamp ①; 306-rear fog lamp ②. DETAILED DESCRIPTION

[0026] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below in an illustrative manner. However, all descriptions are for illustration only and should not be understood as limiting the present invention. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be arbitrarily combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned herein. In addition, in order to simplify the drawings, the same or similar technical features may be marked in only one place in the same drawing.

[0027] In this utility model, unless otherwise specified or limited, the terms "installation", "setting", "connection", "fixation", "screw connection" and the like should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Unless otherwise specified, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances. The utility model will be described in detail below with reference to the accompanying drawings.

[0028] Example 1:

[0029] A vehicle bumper wiring harness detection device includes a signal detection device, a detection display device, and a power supply device, wherein:

[0030] A signal detection device, which is used to detect the continuity of the bumper wiring harness and whether the components on the front bumper and / or rear bumper are reliably connected;

[0031] A detection display device, which is used to display whether the bumper wiring harness is connected and whether the components on the front bumper and / or rear bumper are reliably connected. Preferably, the detection display device is a low-power light-emitting diode connected in series in the detection circuit;

[0032] A power supply device is used to provide a stable DC 12V power supply for the signal detection device and the detection display device. Preferably, the power supply device includes a DC switching power supply.

[0033] In this embodiment, the automotive bumper wiring harness inspection device consists of a power supply, a signal detection device, and a detection and display device. The power supply provides a stable 12V DC power supply to the signal detection device and the detection and display device. After detection by the signal detection device, the detection and display device displays the detection results, providing a visually effective and efficient display. This wiring harness inspection device is placed in the bumper outbound inspection area to inspect assembled bumpers, ensuring timely detection of defective products and preventing them from entering the next process.

[0034] This automobile bumper wiring harness detection device adopts the working principle of closed-loop current detection. A low-power light-emitting diode is connected in series in the detection circuit to detect the continuity of the bumper wiring harness and whether the connection of each component is reliable. During the detection, the light-emitting diode lights up to determine that the wiring harness and component connections are normal. Otherwise, it is determined that there is a breakpoint in the wiring harness or the component connection is unreliable. In order to ensure that the detection current will not cause impact damage to the electrical components in the circuit, a current-limiting resistor is connected in series in the circuit to make the detection current in the circuit less than the working current of each electrical component, thereby ensuring the safety of each electrical component. During the bumper assembly process, if any abnormality is found or the electrical components feel poorly installed, there is no need to remove them one by one for inspection. After the counterpart of the bumper wiring harness is plugged in, the continuity of the wiring harness and the reliability of the connection of each electrical component will be immediately displayed.

[0035] Example 2:

[0036] Example 2 of the present invention is further improved on the basis of Example 1 so as to give full play to the technical advantages of the present invention, which is described below by way of example.

[0037] For example, the components on the front bumper include fog lights and anti-collision radar, and the components on the rear bumper include fog lights and reversing radar. This automobile bumper wiring harness detection device detects whether the fog lights and anti-collision radar on the 330B front bumper and the fog lights and reversing radar on the rear bumper are reliably connected. It is powered by a DC switching power supply, and the bumper-side wiring harness plug is connected to the bumper-side wiring harness plug. The current flowing through the radar is controlled to less than 5ma, and the current flowing through the fog lights is controlled to less than 10ma via a resistor connected in series in the circuit. Finally, the reliability of the connection of each component in the circuit is determined by detecting whether the light-emitting diode on the display device turns on and off. In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following will provide a detailed introduction to the drawings required for the description of the embodiment.

[0038] Furthermore, in this embodiment, it can be considered that Figure 1As shown, the automobile bumper harness detection device includes a bumper harness detection control box, a front bumper harness detection plug, and a rear bumper harness detection plug. The signal detection device and the power supply device are integrated into the bumper harness detection control box. The signal detection device includes a bumper harness detection system, and the power supply device includes a DC switching power supply. Figure 3 As shown in the internal wiring diagram of the bumper harness detection control box, it consists of a main power circuit breaker, a switch power supply, a front bumper fog lamp detection circuit breaker, an anti-collision radar detection circuit breaker, a rear bumper fog lamp detection circuit breaker, and a reversing radar detection circuit breaker. The front bumper and rear bumper detection circuit cables are both led out from the wiring terminals inside the electrical box.

[0039] Furthermore, in this embodiment, it can be considered that the bumper harness detection system includes a front bumper detection system and a rear bumper detection system, and the front bumper detection system and the rear bumper detection system both include a fog lamp detection circuit (loop) and a radar detection circuit (loop).

[0040] Furthermore, in this embodiment, it can be considered that the detection display device includes a low-power light emitting diode connected in series in the fog lamp detection circuit and the radar detection circuit.

[0041] Furthermore, in this embodiment, it can be considered that the fog lamp detection circuit includes an air switch, a current limiting resistor and left and right fog lamps. After the front or rear bumper wiring harness detection plug is connected to the socket on the bumper, the DC switching power supply is connected in series with the air switch, the current limiting resistor, the light-emitting diode and the left and right fog lamps to form a current closed loop, and a light-emitting diode is connected in series in the current closed loop.

[0042] like Figure 2 As shown, this bumper wiring harness test device uses an S-60-12 DC switching power supply to convert 220V AC power into 12V DC power for the bumper wiring harness test circuit. Taking the front bumper wiring harness test as an example: the front bumper fog lamp test current flows from the switching power supply's + terminal, passes through air switch QF2, current-limiting resistors R1 and R2, and flows through light-emitting diodes LED1 and LED2. The front bumper test cable plug is connected to the bumper socket. The current flows through the cable from the left and right fog lamp input + terminals, then out through the fog lamp output - terminal. It then returns to the switching power supply's - terminal through the socket and plug, forming a closed loop and completing the fog lamp circuit test. The rear bumper wiring harness test operates in the same manner.

[0043] Furthermore, in this embodiment, it can be considered that the radar detection circuit includes an air switch, a current limiting resistor and several radars. After the front or rear bumper wiring harness detection plug is connected to the socket on the bumper, the DC switching power supply is connected in series with the air switch, the current limiting resistor, the light-emitting diode and the several radars to form a current closed loop, and a light-emitting diode is connected in series in the current closed loop.

[0044] like Figure 2 As shown, this bumper wiring harness detection device uses an S-60-12 DC switching power supply to convert 220V AC power to 12V DC, which is then supplied to the bumper wiring harness detection circuit. Taking the front bumper wiring harness detection as an example, the detection current of the anti-collision radar probe flows from the + terminal of the switching power supply, passes through air switch QF3, current-limiting resistors R3-R6, and LEDs LED3-LED6, and then connects to the front bumper cable plug and the front bumper socket. Then, through the cables on the bumper, it connects to the + terminals of the four anti-collision radars on the front bumper. The current then flows from the - terminals of the four anti-collision radars, returns to the - terminal of the switching power supply through the socket and plug, forming a closed loop and completing the detection of the four anti-collision radar circuits. The principle of rear bumper wiring harness detection is the same as above.

[0045] Furthermore, in this embodiment, it can be considered that the bumper harness detection control box is connected to the front bumper harness detection plug (front bumper detection cable plug) and the rear bumper harness detection plug (rear front bumper detection cable plug) through the control box side cable, and the cable connection end of the front bumper harness detection plug and the rear bumper harness detection plug is provided with a cable plug handle, and the cable plug handle is provided with a fog light and radar on / off LED indicator, which belongs to the detection display device. Figure 4 The diagram shows the connection status of the front and rear bumper cable plugs and sockets, as well as the position of the LEDs on the plugs. This allows personnel to observe the lighting status of the LEDs in real time during inspection and determine whether the connections of each component are reliable at any time.

[0046] Working principle: Figure 1-6As shown, during work, random inspections are carried out on the assembled bumpers, and any assembly parts that are found to have a bad feel during the assembly process are subject to mandatory inspections. Take the 330B front bumper fog lamp detection as an example: after the detection device is powered on, the main power supply is connected to the input end of the DC power supply through the main control switch, and the DC power supply output + pole line is connected to terminal 1 of the terminal block through the circuit breaker (the DC power supply - pole line is connected to terminal 2 of the terminal block). This DC power supply + pole line is connected to terminal 1 on the terminal block and to terminal 3 (fog lamp ① circuit + end), and then connected to the counterpart of the detection device plug through a cable, through the current limiting resistor and light-emitting tube (current limiting resistor and light-emitting diode combination, installed on the handle of the counterpart) inside the counterpart, and connected to the wiring harness plug on the bumper, and enters the fog lamp ①+ end through the wiring harness on the bumper; the return signal is drawn out from the fog lamp ①- end, through the wiring harness plug on the bumper and the connected counterpart, and then through the cable back to terminal 4 of the terminal block (fog lamp ① circuit - end), terminal 4 is connected in parallel with terminal 2 (terminal 2 is the DC switching power supply output - pole), forming a complete current detection circuit. Similarly: the + pole line of the anti-collision radar ① detection circuit is connected in parallel from line 5 to line 7, then enters the bumper side plug counterpart through the cable, is connected to the bumper side plug through the counterpart, and is connected to the anti-collision radar ①+ end through the bumper wiring harness. The signal is led out from the ①- end of the anti-collision radar, connected to the counterpart through the bumper wiring harness and plug, and returns to the No. 8 terminal in the control box through the cable (the No. 8 terminal is connected in parallel with the - pole of the DC regulated power supply output terminal), forming a complete detection circuit.

[0047] In summary, the utility model provides an automobile bumper harness detection device that can ensure that after the bumper harness is assembled, it can realize rapid and autonomous detection of bumper harness abnormalities, thereby avoiding defective products from flowing into the next project and causing heavy product defects and resulting in waste of work.

[0048] The above embodiments provide a detailed description of the present invention. However, the contents described are merely preferred embodiments of the present invention and should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of the patent application of the present invention.

Claims

1. A vehicle bumper wiring harness detection device, characterized in that: include: A signal detection device, which is used to detect the continuity of the bumper wiring harness and whether the components on the front bumper and / or rear bumper are reliably connected; A detection display device is used to display the continuity of the bumper wiring harness and whether the components on the front bumper and / or rear bumper are reliably connected; The power supply device is used to provide a stable DC 12V power supply for the signal detection device and the detection display device.

2. The automobile bumper wiring harness detection device according to claim 1, characterized in that: The components on the front bumper and the rear bumper include fog lights and radars.

3. The automobile bumper wiring harness detection device according to claim 2, characterized in that: The signal detection device includes a bumper wire harness detection control box, a front bumper wire harness detection plug and a rear bumper wire harness detection plug. The signal detection device and the power supply device are integrated in the bumper wire harness detection control box.

4. The automobile bumper wiring harness detection device according to claim 3, characterized in that: The power supply device includes a DC switching power supply.

5. The automobile bumper wiring harness detection device according to claim 3, characterized in that: The signal detection device includes a bumper harness detection system, which includes a front bumper detection system and a rear bumper detection system. Both the front bumper detection system and the rear bumper detection system include a fog lamp detection circuit and a radar detection circuit.

6. The automobile bumper wiring harness detection device according to claim 5, characterized in that: The detection display device comprises a low-power light emitting diode connected in series in a fog lamp detection circuit and a radar detection circuit.

7. The automobile bumper wiring harness detection device according to claim 6, characterized in that: The fog lamp detection circuit includes an air switch, a current limiting resistor, and left and right fog lamps. After the front or rear bumper wiring harness detection plug is connected to the socket on the bumper, the DC switching power supply is connected in series with the air switch, the current limiting resistor, the light-emitting diode, and the left and right fog lamps to form a current closed loop, and the light-emitting diode is connected in series in the current closed loop.

8. The automobile bumper wiring harness detection device according to claim 6, characterized in that: The radar detection circuit includes an air switch, a current limiting resistor and several radars. After the front or rear bumper wiring harness detection plug is connected to the socket on the bumper, the DC switching power supply is connected in series with the air switch, the current limiting resistor, the light-emitting diode and the several radars to form a current closed loop, and the light-emitting diode is connected in series in the current closed loop.

9. The automobile bumper wiring harness detection device according to claim 6, characterized in that: The bumper wiring harness detection control box is connected to the front bumper wiring harness detection plug and the rear bumper wiring harness detection plug through cables respectively. The cable connecting ends of the front bumper wiring harness detection plug and the rear bumper wiring harness detection plug are provided with cable plug handles, and the cable plug handles are provided with fog lights and radar on / off indicator lights.

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