Automobile circuit board function test equipment

Abstract

The utility model discloses a function test device for an automobile circuit board, relates to the technical field of circuit board test, and solves the problem that an automobile control circuit board is inconvenient to test. The system comprises a display screen positioning module used for positioning an automobile display screen; the first circuit board positioning module is used for positioning the air conditioner control panel and can simulate and adjust a button or a knob on the air conditioner control panel; the second circuit board testing module comprises a lower module used for positioning the control circuit board and an upper module capable of moving up and down, and the upper module can tightly press the control circuit board located on the lower module and electrify the control circuit board; the control circuit board can be electrically connected with the automobile display screen and the air conditioner control panel through the second circuit board test module. The automobile circuit board function test equipment can simulate the installation of a display screen, an air conditioner control panel and a control circuit board in an automobile cab, and can automatically complete the function test of the control circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a functional testing device for automotive circuit boards. Background Technology

[0002] The car's cabin contains an electronic display screen, a central control panel (i.e., a control circuit board), and an air conditioning system. The air conditioning system is controlled by the air conditioning control panel, which controls its on / off state, cooling, heating, and temperature, and displays these settings in real time on the electronic display screen. The central control panel is electrically connected to both the electronic display screen and the air conditioning control panel, and is used to control various automotive systems and equipment.

[0003] After production, the control circuit board needs to undergo testing to ensure its functionality. The control parameters of the air conditioning control panel are displayed on the screen via this circuit board. If the control circuit board malfunctions, the control parameters on the screen will also be abnormal; in this case, no matter how the air conditioning control panel is adjusted, the displayed parameters will not change. Current technology presents challenges in testing control circuit boards, and installing them in vehicles for testing is insufficient to meet the demands of mass production testing. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a functional testing device for automotive circuit boards, which solves the problem of inconvenient testing of automotive control circuit boards.

[0005] The technical solution of this utility model to achieve the above objectives is a functional testing device for automotive circuit boards, comprising:

[0006] Display positioning module, used for positioning the car display screen;

[0007] The first circuit board positioning module is used to position the air conditioner control panel and can simulate the adjustment of buttons or knobs on the air conditioner control panel.

[0008] The second circuit board test module includes a lower module for positioning the control circuit board and an upper module that can move up and down. The upper module can press the control circuit board located on the lower module and energize it. The control circuit board can be electrically connected to the car display screen and the air conditioning control panel of the second circuit board test module respectively.

[0009] Preferably, the system also includes a machine base, a test base, and a loading / unloading module. The test base is mounted on the machine base, and the first circuit board positioning module, the display screen positioning module, and the second circuit board test module are sequentially mounted on the test base.

[0010] Preferably, the first circuit board positioning module includes a positioning carrier plate, a plurality of positioning components rotatably connected to the positioning carrier plate, and a plurality of pressing mechanisms corresponding to buttons on the air conditioner control panel, wherein the pressing mechanisms are used to press the buttons on the air conditioner control panel.

[0011] Preferably, the first circuit board positioning module further includes a gear that can be fixedly connected to a knob on the air conditioning control panel, a rack that meshes with the gear, and a drive cylinder that drives the rack to move.

[0012] Preferably, the lower module includes a lower needle plate, a lower needle block, and a download plate. The download plate is detachably mounted on the lower needle plate. The download plate is provided with a plurality of positioning posts for positioning the control circuit board. The lower needle block is disposed on the lower needle plate and is provided with a probe. The probe can pass through the download plate and make electrical contact with the control circuit board.

[0013] Preferably, the upper module includes an upper mold frame, a pressing cylinder for driving the upper mold frame to move up and down, a fixed frame connected to the upper mold frame via a connecting rod, an upper needle plate disposed at the bottom of the fixed frame, an upper carrier plate mounted at the bottom of the upper needle plate, and an upper needle block disposed on the upper needle plate. The upper needle block is provided with a probe, which can pass through the upper carrier plate and make electrical contact with the control circuit board.

[0014] Preferably, a barcode scanner is provided between the upper mold frame and the fixed frame, and the upper needle plate and the upper carrier plate have clearance holes to facilitate the barcode scanner to scan the control circuit board below.

[0015] Preferably, a camera is disposed above the display screen positioning module and the first circuit board positioning module.

[0016] Preferably, the loading and unloading module includes a suction cup assembly and a transfer mechanism that drives the suction cup assembly to move horizontally and vertically.

[0017] Preferably, the machine platform is equipped with two adjustable-width conveyor belts, which are arranged vertically and parallel to each other.

[0018] Its advantages over existing technologies are:

[0019] This utility model discloses an automotive circuit board functional testing device that can simulate the installation of a display screen, air conditioning control panel, and control circuit board in a car's driver's cab and automatically complete the functional testing of the control circuit board without requiring on-vehicle testing. The display screen positioning module and the first circuit board positioning module are used to position the automotive display screen and air conditioning control panel, respectively. The upper and lower modules of the second circuit board testing module press and position the control circuit board while simultaneously making electrical contact with it. The control circuit board can be electrically connected to both the automotive display screen and the air conditioning control panel via the second circuit board testing module. When the first circuit board positioning module simulates adjusting buttons or knobs on the air conditioning control panel, the signal is processed by the control circuit board and displayed on the display screen. By observing the information on the display screen, the device can determine whether the control circuit board is functioning correctly. This method is simple, quick, and can automatically meet the needs of batch testing of control circuit boards. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the automotive circuit board functional testing equipment of this utility model;

[0021] Figure 2 This is a schematic diagram of the installation structure of each module on the test base;

[0022] Figure 3 This is a schematic diagram of the structure of the second circuit board test module;

[0023] Figure 4 This is a structural diagram of the upper module;

[0024] Figure 5 This is a structural diagram of the lower module;

[0025] Figure 6 This is a structural schematic diagram of the first circuit board positioning module;

[0026] Figure 7 This is a structural diagram of the loading and unloading module.

[0027] In the diagram, 1. Machine base; 2. Test base; 3. Second circuit board test module; 31. Upper module; 311. Upper mold frame; 312. Fixing frame; 313. Upper needle plate; 314. Upper carrier plate; 315. Upper needle block; 316. Stand; 317. Lifting plate; 32. Lower module; 321. Lower needle plate; 322. Download plate; 301. Probe; 4. Display positioning module; 5. First circuit board positioning module; 51. Base plate; 52. Pad; 53. Positioning carrier plate; 54. Pressing mechanism; 55. Drive cylinder; 56. Gear; 57. Rack; 58. Positioning component; 6. Camera; 7. Conveyor belt; 8. Loading and unloading module; 81. Transplanting mechanism; 82. Suction cup assembly; 83. Connecting plate; 9. Support frame; 10. Air conditioning control panel; 11. Control circuit board. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] like Figure 1 As shown, a preferred embodiment of this utility model proposes a functional testing device for automotive circuit boards. The functional testing device mainly includes components such as a machine base 1, a test base 2, a loading and unloading module 8, a display screen positioning module 4, a first circuit board positioning module 5, and a second circuit board testing module 3.

[0030] For details, please refer to Figure 2 The test base 2 is mounted on the machine tool 1. The display screen positioning module 4, the first circuit board positioning module 5, and the second circuit board test module 3 are all mounted on the test base 2. The first circuit board positioning module 5 and the second circuit board test module 3 are located on both sides of the display screen positioning module 4. The test base 2 has a control component for controlling the operation of the display screen positioning module 4, the first circuit board positioning module 5, and the second circuit board test module 3.

[0031] The display positioning module 4 is used to position the main screen and the secondary screen of the car display, and at the same time to supply power to the main screen and the secondary screen.

[0032] like Figure 6 As shown, the first circuit board positioning module 5 can position the air conditioner control panel 10 and simulate the adjustment of the knobs and buttons on the air conditioner control panel 10. It mainly consists of a base plate 51, a positioning carrier plate 53, positioning components 58, a pressing mechanism 54, a gear 56, and a drive cylinder 55. A pad 52 is provided at each end of the base plate 51, and the positioning carrier plate 53 is fixedly mounted on the pad 52. The pad 52 is used to raise the height of the positioning carrier plate 53. Multiple positioning components 58 are provided and rotatably connected to the positioning carrier plate 53, used to position the edges of the air conditioner control panel 10. The positioning components 58 are rotated to position themselves above the air conditioner control panel 10.

[0033] Multiple pressing mechanisms 54 are provided and vertically fixed on the upright plate, each corresponding to one of the multiple buttons on the air conditioning control panel 10. The pressing mechanism 54 is located above the button and is mainly composed of a cylinder and a pressure rod. The cylinder drives the pressure rod to press down the button.

[0034] Gear 56 is mounted on a knob on the air conditioning control panel 10, which can drive the knob to rotate. Two drive cylinders 55 are located at opposite ends of the positioning plate 53. The output end of each drive cylinder 55 is connected to a rack 57, which meshes with gear 56. By moving the rack 57 through the drive cylinder 55, the gear 56 rotates, which in turn rotates the knob, thus adjusting the control parameters of the air conditioning control panel 10.

[0035] like Figure 3 As shown, the second circuit board test module 3 is used to test the control circuit board 11. It mainly consists of an upper module 31 and a lower module 32. The upper module 31 is located above the lower module 32 and can move up and down. When the control circuit board 11 is placed on the lower module 32, the upper module 31 will move down to press the control circuit board 11 firmly. At the same time, the probes 301 on the upper module 31 and the lower module 32 will make electrical contact with the control circuit board 11 respectively, so as to power the control circuit board 11.

[0036] refer to Figure 5 The lower module 32 mainly consists of a lower needle plate 321, a lower needle block (not shown in the figure), and a download plate 322. The lower needle plate 321 is typically fixedly mounted on the test base 2, and the download plate 322 is mounted on the lower needle plate 321. The lower needle plate 321 has rectangular holes, and the lower needle block is installed within these rectangular holes. The lower needle plate 321 has several probes 301, the upper ends of which pass through the download plate 322. The download plate 322 has several positioning posts for positioning the edges of the control circuit board 11.

[0037] After the control circuit board 11 is placed on the download board 322, several probes 301 will make electrical contact with the corresponding parts on the control circuit board 11.

[0038] refer to Figure 3 , Figure 4 The upper module 31 mainly consists of an upper mold frame 311, a pressing cylinder, a lifting plate 317, a fixed frame 312, an upper needle plate 313, an upper carrier plate 314, an upper needle block 315, and a vertical frame 316. The lifting plate 317 is slidably connected to the uprights on the vertical frame 316. The pressing cylinder is vertically mounted on the vertical frame 316, and its output end is connected to the lifting plate 317 to drive its vertical movement. The upper mold frame 311 is detachably mounted at the bottom of the lifting plate 317. The fixed frame 312 is located below the upper mold frame 311 and connected to it via a connecting rod. The upper needle plate 313 is mounted at the bottom of the fixed frame 312, and the upper carrier plate 314 is mounted at the bottom of the upper needle plate 313.

[0039] Correspondingly, the upper needle plate 313 has a rectangular hole, the upper needle block 315 is installed in the rectangular hole, and the upper needle plate 313 has a number of probes 301 that can pass through the upper carrier plate 314. The shape of the bottom of the download board 322 is adapted to the shape of the control circuit board 11.

[0040] When the upper module 31 moves down, the download board 322 will press and position the control circuit board 11, and at the same time, several probes 301 will make electrical contact with the corresponding parts on the control circuit board 11.

[0041] The control circuit board 11 is electrically connected to the air conditioning control panel 10 and the automotive electronic display screen via the second circuit board test module 3. When a button on the air conditioning control panel 10 is pressed or a knob is rotated, the control signal of the air conditioning control panel 10 is processed by the control circuit board 11 and displayed on the display screen (including the main screen and the secondary screen). The functionality of the control circuit board 11 can be determined by the data displayed on the display screen.

[0042] A barcode scanner is also provided between the upper mold frame 311 and the fixed frame 312. The barcode scanner is fixedly installed on the bracket and located below the barcode scanner. A clearance hole is provided on the upper needle plate 313 and the upper carrier plate 314 so that the barcode scanner can scan the QR code or barcode on the control circuit board 11 during batch testing, and the information of the control circuit board 11 is automatically recorded in the system.

[0043] like Figure 2 As shown, three cameras 6 are positioned above the display screen positioning module 4 and the first circuit board positioning module 5, and all three cameras 6 are mounted on the support frame 9. The three cameras 6 correspond to the air conditioning control panel 10 on the display screen positioning module 4 below and the main screen and sub-screen on the first circuit board positioning module 5, respectively. They can automatically visually recognize changes in the buttons and knobs of the air conditioning control panel 10, as well as changes in the display information on the main screen and sub-screen, and automatically determine whether the function of the control circuit board 11 is normal based on the information.

[0044] like Figure 1 As shown, the machine base 1 is equipped with two conveyor belts 7, which are parallel to each other vertically. One conveyor belt is used for loading, and the other is used for unloading. The width of the conveyor belts 7 is adjustable. The width of the conveyor belts 7 can be adjusted by a motor-lead screw to accommodate the conveying of control circuit boards 11 of different sizes.

[0045] like Figure 1 , Figure 7As shown, the loading / unloading module 8 is located on one side of the machine base 1. It mainly consists of a transfer mechanism 81 and a suction cup assembly 82. The transfer mechanism 81 uses a three-axis module, which can control the suction cup assembly 82 to move forward, backward, up, down, and left and right. A horizontal connecting plate 83 is installed on the transfer mechanism 81, and the suction cup assembly 82 is installed at the front end of the connecting plate 83. The suction cup assembly 82 is T-shaped, and its bottom has multiple suction cups for picking up the control circuit board 11.

[0046] After the loading conveyor belt transports the control panel to the designated position, the transfer mechanism 81 controls the suction cup assembly 82 to move and pick up the control circuit board 11. It then moves from the side between the upper module 31 and the lower module 32, and is placed on the lower module 32. After the functional test is completed, it is removed and placed back onto the loading conveyor belt, which continues to transport it backward. Finally, an external handling mechanism picks it up and moves it to the unloading conveyor belt below, transporting it out of the workstation.

[0047] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A functional testing device for automotive circuit boards, characterized in that, include: Display positioning module (4) is used to position the car display screen; The first circuit board positioning module (5) is used to position the air conditioner control panel (10) and can simulate the adjustment of the buttons or knobs on the air conditioner control panel (10). The second circuit board test module (3) includes a lower module (32) for positioning the control circuit board (11) and an upper module (31) that can move up and down. The upper module (31) can press the control circuit board (11) located on the lower module (32) and energize it. The control circuit board (11) can be electrically connected to the car display screen and the air conditioning control panel (10) respectively.

2. The automotive circuit board functional testing equipment according to claim 1, characterized in that, It also includes a machine base (1), a test base (2) and a loading and unloading module (8). The test base (2) is set on the machine base (1), and the first circuit board positioning module (5), the display screen positioning module (4) and the second circuit board test module (3) are sequentially set on the test base (2).

3. The automotive circuit board functional testing equipment according to claim 1, characterized in that, The first circuit board positioning module (5) includes a positioning carrier plate (53), a plurality of positioning components (58) rotatably connected to the positioning carrier plate (53), and a plurality of pressing mechanisms (54) corresponding to the buttons on the air conditioning control panel (10), wherein the pressing mechanism (54) is used to press the buttons on the air conditioning control panel (10).

4. The automotive circuit board functional testing equipment according to claim 3, characterized in that, The first circuit board positioning module (5) also includes a gear (56) that can be fixedly connected to a knob on the air conditioning control panel (10), a rack (57) that meshes with the gear (56), and a drive cylinder (55) that drives the rack (57) to move.

5. The automotive circuit board functional testing equipment according to claim 1, characterized in that, The lower module (32) includes a lower needle plate (321), a lower needle block, and a download plate (322). The download plate (322) is detachably mounted on the lower needle plate (321). The download plate (322) is provided with a plurality of positioning posts for positioning the control circuit board (11). The lower needle block is disposed on the lower needle plate (321). The lower needle block is provided with a probe (301). The probe (301) can pass through the download plate (322) and make electrical contact with the control circuit board (11).

6. The automotive circuit board functional testing equipment according to claim 1, characterized in that, The upper module (31) includes an upper mold frame (311), a pressing cylinder that drives the upper mold frame (311) to move up and down, a fixed frame (312) connected to the upper mold frame (311) via a connecting rod, an upper needle plate (313) disposed at the bottom of the fixed frame (312), an upper carrier plate (314) mounted at the bottom of the upper needle plate (313), and an upper needle block (315) disposed on the upper needle plate (313). The upper needle block (315) is provided with a probe (301), which can pass through the upper carrier plate (314) and make electrical contact with the control circuit board (11).

7. The automotive circuit board functional testing equipment according to claim 6, characterized in that, A barcode scanner (318) is provided between the upper mold frame (311) and the fixed frame (312). The upper needle plate (313) and the upper carrier plate (314) have clearance holes to facilitate the barcode scanner (318) to scan the control circuit board (11) below.

8. The automotive circuit board functional testing equipment according to claim 1, characterized in that, A camera (6) is disposed above the display positioning module (4) and the first circuit board positioning module (5).

9. The automotive circuit board functional testing equipment according to claim 2, characterized in that, The loading and unloading module (8) includes a suction cup assembly (82) and a transfer mechanism (81) that drives the suction cup assembly (82) to move horizontally and vertically.

10. The automotive circuit board functional testing equipment according to claim 2, characterized in that, The machine (1) is equipped with two adjustable width conveyor belts (7), which are arranged vertically and horizontally.

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