Four-channel airtightness electrical testing equipment for automotive lights

Abstract

This utility model relates to the field of automotive lighting technology, specifically to a four-channel airtightness and electrical testing device for automotive lights. It includes a testing device body, a lighting electrical testing mechanism, an operating mechanism, and an airtightness testing mechanism. The airtightness testing mechanism includes a contour-sealed lower mold, a limiting upper mold, a positioning frame, a first servo cylinder, a mounting plate, a second servo cylinder, an air guide head, a connecting seat, an intake electric valve, an exhaust electric valve, a pressure sensor, a sealing device, and a protection device. After airtightness testing, the exhaust electric valve is opened, controlling the lighting electrical testing mechanism to perform electrical testing. Whether the lighting body is illuminated is observed through the front cavity of the contour-sealed lower mold. This application enables a single device to perform electrical and airtightness testing simultaneously, optimizing equipment size. It also solves the problem that in the prior art, lighting electrical and airtightness testing are mostly performed separately, requiring two different testing devices, which results in a large equipment footprint in the testing area and seriously affects production planning.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a four-channel airtight electrical testing device for automotive lighting. Background Technology

[0002] The electrical connection of a car headlight includes four key wires: a positive wire, a negative wire, a signal wire controlling the positive terminal, and a return wire for the control signal. During production, headlights undergo electrical testing, which involves powering on the headlight to check if it illuminates, thus determining if it meets standards. Strict requirements are also placed on the sealing performance of car headlights during manufacturing. This necessitates that each headlight, after production and assembly, must be tested for leaks to ensure it meets the required standards.

[0003] Under current technology, electrical testing of vehicle lights and air tightness testing are mostly carried out separately. This requires two different testing devices, which results in a large area occupied by the testing equipment and seriously affects production planning. Utility Model Content

[0004] The purpose of this utility model is to provide a four-way airtightness and electrical testing device for automotive headlights, which aims to solve the problem that in the existing technology, headlight electrical testing and airtightness testing are mostly carried out separately. This requires two different testing devices to perform the testing, which will result in a large area occupied by the testing equipment and seriously affect production planning.

[0005] To achieve the above objectives, this utility model provides a four-way airtight electrical testing device for automotive headlights, including an electrical testing device body, on which a headlight electrical testing mechanism and an operating mechanism are provided, and also includes an airtight testing mechanism.

[0006] The airtightness testing mechanism includes a contour sealing lower mold, a limiting upper mold, a positioning frame, a first servo electric cylinder, a mounting plate, a second servo electric cylinder, an air guide head, a connecting seat, an intake electric valve, an exhaust electric valve, a pressure sensor, a sealing device, and a protection device. A vehicle headlight body is positioned between the contour sealing lower mold and the limiting upper mold. The contour sealing lower mold is fixed to the top of the electrical control cabinet of the electrical testing equipment body. The positioning frame is detachably connected to the electrical testing equipment body and located behind the contour sealing lower mold. The first servo electric cylinder is electrically connected to the electrical testing equipment body and fixed to the positioning frame, with its output end connected to the limiting upper mold. The mounting plate is installed on the top left side of the electrical testing equipment body. Two servo electric cylinders are mounted on the mounting plate, and their output ends are connected to the air guide head. The connecting seat is installed above the inlet of the L-shaped air passage of the air guide head. The intake electric valve is installed on the top air inlet side of the connecting seat and is connected to the external air supply pipe. The exhaust electric valve is installed on the air guide head and is connected to its internal L-shaped air passage. The pressure sensor is located on the air guide head and is connected to its internal L-shaped air passage, and is close to the exhaust electric valve. The sealing device is located on the outside of the contour sealing lower mold, and its number is matched according to the number and position of the air leakage port on the headlight body. The protection device is located on the top of the electrical testing equipment body, and the operating mechanism is located on one side of the protection device.

[0007] The vehicle headlight electrical testing mechanism includes a drive unit and a connector plug. The drive unit is electrically connected to the main body of the electrical testing equipment and is located on the rear side of the contour sealing lower mold. The connector plug is connected to the output end of the drive unit and is electrically connected to an external power source.

[0008] The protective device includes a protective cover, a transparent acrylic plate, and a top plate. The protective cover is detachably connected to the main body of the electrical testing equipment and is located on top of the main body of the electrical testing equipment; the transparent acrylic plate is detachably connected to the protective cover; and the top plate is detachably connected to the protective cover.

[0009] The operating mechanism includes a hanger and a manual operating device. The hanger is detachably connected to the top plate and is located on the right front side of the top plate. The manual operating device is electrically connected to the electrical inspection equipment body and is detachably installed on the hanger.

[0010] The automotive headlight four-way airtight electrical testing equipment also includes a wiring mechanism, which includes a support base and a wiring conduit. The support base is detachably connected to the main body of the electrical testing equipment and the protective cover, and is located on the right side of the protective cover. The wiring conduit is welded to the support base.

[0011] This utility model discloses a four-channel airtightness and electrical testing device for automotive headlights. During headlight testing, the headlight body is first sealed and placed in conjunction with a contour-sealed lower mold. A first servo cylinder drives a limiting upper mold downwards for limiting. Next, a sealing device is activated to seal the air leakage port of the headlight body. Then, a second servo cylinder is activated to push an air guide head into the air inlet of the headlight body. The exhaust electric valve is closed, and the intake electric valve is opened to pressurize the headlight body and test its airtightness. After the airtightness test is completed, the exhaust electric valve is opened, and the headlight electrical testing mechanism is activated to perform electrical testing. Whether the headlight body lights up can be observed through the front cavity of the contour-sealed lower mold. This application enables a single device to perform electrical testing and airtightness testing simultaneously, which will help optimize the equipment size and solve the problem that in the existing technology, headlight electrical testing and airtightness testing are mostly performed separately, requiring two different testing devices, resulting in a large equipment area occupied by the testing area and seriously affecting production planning. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the four-channel airtight electrical testing device for automotive headlights according to the first embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the positioning frame according to the first embodiment of this utility model.

[0015] Figure 3 This is the first embodiment of the present utility model. Figure 2 Enlarged view of point A in the middle.

[0016] Figure 4 This is a schematic diagram of the overall structure of the four-channel airtight electrical testing device for automotive headlights according to the second embodiment of this utility model.

[0017] In the diagram: 101-Electrical inspection equipment body, 102-Contouring sealing lower mold, 103-Limiting upper mold, 104-Positioning frame, 105-First servo electric cylinder, 106-Mounting plate, 107-Second servo electric cylinder, 108-Air guide head, 109-Connecting seat, 110-Intake electric valve, 111-Exhaust electric valve, 112-Pressure sensor, 113-Sealing device, 114-Lantern body, 115-Drive device, 116-Connecting plug, 117-Protective cover, 118-Transparent acrylic sheet, 119-Top plate, 120-Hanger, 121-Manual operating device, 201-Support base, 202-Wiring conduit. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Example 1:

[0020] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of a four-channel airtightness electrical testing device for automotive headlights. Figure 2 This is a structural schematic diagram of the positioning frame 104. Figure 3 yes Figure 2 The enlarged view at point A shows that this utility model provides a four-way airtightness electrical testing device for automotive headlights: it includes an electrical testing device body 101, a headlight electrical testing mechanism, an operating mechanism, and an airtightness testing mechanism. The airtightness testing mechanism includes a contour sealing lower mold 102, a limiting upper mold 103, a positioning frame 104, a first servo electric cylinder 105, a mounting plate 106, a second servo electric cylinder 107, an air guide head 108, a connecting seat 109, an intake electric valve 110, an exhaust electric valve 111, a pressure sensor 112, a sealing device 113, and a protection device. The headlight electrical testing mechanism includes a drive device 115 and a connecting plug 116. The protection device includes a protective cover 117, a transparent acrylic plate 118, and a top plate 119. The operating mechanism includes a hanger 120 and a manual operating device 121. The aforementioned solution addresses the problem that, under current technology, electrical and airtightness testing of vehicle lights are mostly performed separately. This requires two different testing devices, which results in a large area occupied by the testing equipment and seriously affects production planning. Understandably, the aforementioned solution allows a single device to perform electrical and airtightness testing simultaneously, which will help optimize the equipment size.

[0021] In this embodiment, the electrical testing equipment body 101 is equipped with a vehicle headlight electrical testing mechanism and an operating mechanism. Corresponding electrical control components are installed inside the electrical control cabinet of the electrical testing equipment body 101. The vehicle headlight electrical testing mechanism is used for testing the vehicle headlight illumination electrically, and the operating mechanism is used for manual operation of the equipment.

[0022] A vehicle lamp body 114 is disposed between the contour sealing lower mold 102 and the limiting upper mold 103. The contour sealing lower mold 102 is fixed to the top of the electrical control cabinet of the electrical inspection equipment body 101. The positioning frame 104 is detachably connected to the electrical inspection equipment body 101 and is located behind the contour sealing lower mold 102. The first servo electric cylinder 105 is electrically connected to the electrical inspection equipment body 101 and fixed on the positioning frame 104, and its output end is connected to the limiting upper mold 103. The mounting plate 106 is installed on the top left side of the electrical inspection equipment body 101. The second servo electric cylinder 107 is installed on the mounting plate 106, and its output end is connected to the air guide head 108. The seat 109 is installed above the inlet of the L-shaped air passage of the air guide head 108. The intake electric valve 110 is installed on the top air inlet side of the connecting seat 109 and is connected to the external air supply pipe. The exhaust electric valve 111 is installed on the air guide head 108 and is connected to its internal L-shaped air passage. The pressure sensor 112 is installed on the air guide head 108 and is connected to its internal L-shaped air passage, and is close to the exhaust electric valve 111. The sealing device 113 is installed on the outside of the contour sealing lower mold 102, and its number is matched according to the number and position of the air leakage port on the headlight body 114. The protection device is installed on the top of the electrical testing equipment body 101, and the operating mechanism is installed on one side of the protection device. The contour sealing lower mold 102 is fixed by countersunk bolts and positioning pins. The internal cavity is arranged according to the layout corresponding to the car headlights, so that the headlight air inlet is on the left side of the equipment, the electrical inspection port is on the rear side of the equipment, and the sealing port is on the right side of the equipment or other matching positions. The positioning frame 104 is fixed by positioning pins and bolts. The first servo electric cylinder 105 is fixed on the positioning frame 104 by bolts. Its output end is mounted with a connecting plate by countersunk bolts. The connecting plate is bolted to the limiting upper mold 103. The mounting plate 106 is fixed with bolts, which extend upwards from the top outside of the inner side of the electrical control cabinet. The second servo cylinder 107 is fixed with bolts, and its output end is mounted with a connecting plate via countersunk bolts. The connecting plate is connected to the connecting end of the air guide head 108 via bolts. The air guide head 108 has an L-shaped air passage inside, and the connecting seat 109 and the exhaust electric valve 111 are respectively installed in connection with the L-shaped air passage. The intake electric valve 110 is installed on the top of the connecting seat 109, and a quick-connect air pipe is installed on the top of the intake electric valve 110 for connecting to an external air supply pipe. After the pressure sensor 112 is installed, its detection part will be in communication with the L-shaped air passage for detecting airtightness. If there is air leakage in the headlight, the detection pressure will change, and the airtightness of the headlight can be determined based on the pressure change. The sealing device 113 uses a servo cylinder to drive the sealing head to seal the air leakage hole of the headlight body 114.The protection device is used for equipment isolation and protection during testing.

[0023] Secondly, the drive device 115 is electrically connected to the electrical testing equipment body 101 and is located on the rear side of the contour sealing lower mold 102; the connector 116 is connected to the output end of the drive device 115 and electrically connected to an external power supply. The drive device 115 uses a servo electric cylinder to drive the connector 116 to move linearly and engage with the power-contacting part on the headlight body 114. Subsequently, the headlight can be tested by connecting the power supply through the manual operation device 121.

[0024] Then, the protective cover 117 is detached from the electrical inspection equipment body 101 and located on top of the electrical inspection equipment body 101; the transparent acrylic plate 118 is detached from the protective cover 117; and the top plate 119 is detached from the protective cover 117. The protective cover 117 is fixed with bolts, and through slots are respectively provided on the left, rear, and right sides of the protective cover 117. The transparent acrylic plate 118 is directly slidably installed in the slots, and finally the top plate 119 is fixed on with bolts for limiting its position. A rectangular slot is provided on the lower left rear side of the top of the electrical control cabinet. The rectangular slot is used for corresponding cables or air pipes to pass through, and corresponding cable through holes are provided at the bottom rear side of the electrical control cabinet.

[0025] Finally, the hanger 120 is detached from the top plate 119 and located on the right front side of the top plate 119; the manual operating device 121 is electrically connected to the electrical testing equipment body 101 and is detached and installed on the hanger 120. The hanger 120 consists of a rectangular plate and an auxiliary tube. The rectangular plate is fixed by bolts, and the bottom mounting end of the auxiliary tube has a through-hole structure. The housing of the manual operating device 121 is connected to the bottom mounting end of the auxiliary tube by bolts. The manual operating device 121 is equipped with a data display screen for displaying corresponding test data and has multiple function buttons to facilitate manual operation of the equipment.

[0026] In addressing the problem that existing technologies often separate electrical and airtightness testing of vehicle lights, requiring two different testing devices and resulting in large equipment footprints and significant disruptions to production planning, this invention solves the problem of vehicle light testing by first sealing the vehicle light body 114 with the contour sealing lower mold 102. The first servo cylinder 105 drives the limiting upper mold 103 downwards for limiting. Next, the sealing device 113 is activated to seal the air leak in the vehicle light body 114. Then, the second servo cylinder 107 is activated to push the air guide head 108 into the air inlet of the vehicle light body 114, closing the exhaust electric valve 111 and opening the intake electric valve 110 to supply air to the vehicle light body. 114 is pressurized, and after a certain period of time, the intake electric valve 110 is closed to maintain the pressure. Then, the pressure sensor 112 monitors the pressure, and the data is displayed on the screen of the manual operation device 121, thereby realizing the airtightness test. After the airtightness test is completed, the exhaust electric valve 111 is opened to exhaust the air, and the vehicle lamp electrical testing mechanism is controlled to perform electrical testing. Whether the vehicle lamp body 114 is lit can be observed through the front cavity of the contour sealing lower mold 102. This application can realize the simultaneous electrical testing and airtightness testing of a single device, which will help optimize the equipment size and solve the problem that in the existing technology, vehicle lamp electrical testing and airtightness testing are mostly performed separately, which requires two different testing devices to perform the testing, resulting in a large area occupied by the testing equipment and seriously affecting production planning.

[0027] Example 2:

[0028] like Figure 4 As shown, where Figure 4 This is a schematic diagram of the overall structure of a four-channel airtight electrical testing device for automotive headlights. Based on the first embodiment, this utility model provides a four-channel airtight electrical testing device for automotive headlights. The four-channel airtight electrical testing device for automotive headlights also includes a wiring mechanism, which includes a support base 201 and a wiring conduit 202.

[0029] The support base 201 is detachably connected to both the electrical inspection equipment body 101 and the protective cover 117, and is located on the right side of the protective cover 117. The wiring conduit 202 is welded to the support base 201. The support base 201 is U-shaped and is fixed to the electrical control cabinet of the protective cover 117 and the electrical inspection equipment body 101 by bolts. The support base 201 has through holes to facilitate the welding and fixing of the wiring conduit 202 after it is inserted. A through hole is provided at the bottom right side of the electrical control cabinet, near the bottom port of the wiring conduit 202.

[0030] In this embodiment, the support base 201 and the wiring conduit 202, once installed, can partially protect the working cable of the manual operation device 121 and also prevent the cable from being messy.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A four-way airtight electrical testing device for automotive headlights, comprising a testing device body, wherein the testing device body is provided with a headlight electrical testing mechanism and an operating mechanism, characterized in that: It also includes airtightness testing agencies; The airtightness testing mechanism includes a contour sealing lower mold, a limiting upper mold, a positioning frame, a first servo electric cylinder, a mounting plate, a second servo electric cylinder, an air guide head, a connecting seat, an intake electric valve, an exhaust electric valve, a pressure sensor, a sealing device, and a protection device. A vehicle headlight body is positioned between the contour sealing lower mold and the limiting upper mold. The contour sealing lower mold is fixed to the top of the electrical control cabinet of the electrical testing equipment body. The positioning frame is detachably connected to the electrical testing equipment body and located behind the contour sealing lower mold. The first servo electric cylinder is electrically connected to the electrical testing equipment body and fixed to the positioning frame, with its output end connected to the limiting upper mold. The mounting plate is installed on the top left side of the electrical testing equipment body. Two servo electric cylinders are mounted on the mounting plate, and their output ends are connected to the air guide head. The connecting seat is installed above the inlet of the L-shaped air passage of the air guide head. The intake electric valve is installed on the top air inlet side of the connecting seat and is connected to the external air supply pipe. The exhaust electric valve is installed on the air guide head and is connected to its internal L-shaped air passage. The pressure sensor is located on the air guide head and is connected to its internal L-shaped air passage, and is close to the exhaust electric valve. The sealing device is located on the outside of the contour sealing lower mold, and its number is matched according to the number and position of the air leakage port on the headlight body. The protection device is located on the top of the electrical testing equipment body, and the operating mechanism is located on one side of the protection device.

2. The four-channel airtight electrical testing equipment for automotive headlights as described in claim 1, characterized in that: The vehicle headlight electrical testing mechanism includes a drive unit and a connector plug. The drive unit is electrically connected to the main body of the electrical testing equipment and is located on the rear side of the contour sealing lower mold. The connector plug is connected to the output end of the drive unit and is electrically connected to an external power source.

3. The four-channel airtightness electrical testing equipment for automotive headlights as described in claim 1, characterized in that: The protective device includes a protective cover, a transparent acrylic plate, and a top plate. The protective cover is detachably connected to the main body of the electrical testing equipment and is located on top of the main body of the electrical testing equipment; the transparent acrylic plate is detachably connected to the protective cover; and the top plate is detachably connected to the protective cover.

4. The four-channel airtightness electrical testing equipment for automotive headlights as described in claim 3, characterized in that: The operating mechanism includes a hanger and a manual operating device. The hanger is detachably connected to the top plate and is located on the right front side of the top plate. The manual operating device is electrically connected to the electrical inspection equipment body and is detachably installed on the hanger.

5. The four-channel airtight electrical testing equipment for automotive headlights as described in claim 3, characterized in that... : The automotive headlight four-way airtight electrical testing equipment also includes a wiring mechanism, which includes a support base and a wiring conduit. The support base is detachably connected to the main body of the electrical testing equipment and the protective cover, and is located on the right side of the protective cover. The wiring conduit is welded to the support base.

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