Air tightness detection jig for high-voltage wiring harness of new energy automobile

Abstract

The utility model discloses a new energy automobile high-voltage wire harness airtightness detection jig, which belongs to the technical field of automobile wire harnesses, and comprises a substrate and a wind-up roller, the left side of the top of the substrate is fixedly connected with a jig body, the inner cavity of the jig body is provided with a limiting roller, and the two sides of the jig body are both provided with through holes. According to the utility model, the insertion block drives the winding roller to rotate, the winding roller is used for winding the wire harness, in the winding process, a user judges whether the air tightness of the wire harness reaches the standard by observing whether bubbles exist in water in the jig body, if the air tightness reaches the standard, the wire harness continues to be wound, and if the air tightness does not reach the standard, the specified position is marked, so that subsequent treatment is facilitated; and after winding is completed, the user rotates the mounting bolt through an external tool until the mounting bolt is taken out from the interior of the inserting block, limiting on the winding roller is relieved, and finally the user takes down the winding roller wound with the wire harness, so that one-time detection and winding work is completed, and the winding efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile wiring harnesses, and in particular relates to an air tightness detection fixture for high-voltage wiring harnesses of new energy vehicles. Background Art

[0002] The automotive wiring harness is the network body of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the contact terminal made of copper material, which is crimped with the wire and cable, and then the insulator is plastic-pressed on the outside or an external metal shell is added. The wiring harness industry chain includes wires and cables, connectors, processing equipment, wiring harness manufacturing and downstream application industries. The wiring harness is widely used and can be used in automobiles, household appliances, computers and communication equipment, various electronic instruments and meters, etc. The body wiring harness connects the entire body. The wiring harness needs to be tested for airtightness before it is put into use. During the testing process, testing fixtures are often required.

[0003] The existing detection method is to inject water into the fixture, and then pass the wire harness through the fixture filled with water for detection. By observing whether there are bubbles in the water, it is determined whether the air tightness of the wire harness meets the standard. However, since the length of the wire harness to be tested is too long, it needs to be manually reeled up after the test, which increases the intensity of the work. At the same time, manual operation greatly reduces the reeling efficiency. Therefore, we provide a new energy vehicle high-voltage wire harness air tightness detection fixture. Utility Model Content

[0004] The purpose of the utility model is to provide a new energy vehicle high-voltage wire harness airtightness detection fixture, which is used in conjunction with a winding roller through the arrangement of a motor, a rotating rod and a plug-in block to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new energy vehicle high-voltage wire harness airtightness detection jig, comprising a substrate and a winding roller, the left side of the top of the substrate is fixedly connected to a jig body, and the inner cavity of the jig body is provided with a limiting roller, through holes are opened on both sides of the jig body, the top of the substrate and the right side of the jig body are fixedly connected with a dewatering tank, the rear end of the right side of the top of the substrate is fixedly connected to a vertical plate, and a motor is fixedly installed on the back of the vertical plate, the output end of the motor is fixedly connected to a rotating rod, and the front surface of the rotating rod is fixedly connected to a plug-in block, the inner wall of the plug-in block is plugged with one end of the winding roller, and the plug-in block and one end of the winding roller are fixed by mounting bolts.

[0006] By adopting the above scheme, water is injected into the interior of the jig body, and the capacity of the water is lower than the height of the through holes opened on both sides of the jig body. After the injection is completed, the user inputs the wiring harness to be detected into the interior of the jig body through the through hole on the left side of the jig body, and makes the wiring harness be located below the limiting roller, and is transported to the interior of the dewatering tank through the through hole on the right side of the jig body and the feed port on the left side of the dewatering tank, so that the surface of the wiring harness passes through the top of the lower pressure plate, and then is output through the guide port on the right side of the dewatering tank, and is wound around the surface of the winding roller. After the preparation work is completed, the rotating rod is driven to rotate by the motor, and the plug is driven by the rotating rod The block rotates, and the plug-in block drives the winding roller to rotate, and the wire harness is wound by the winding roller. During the winding process, the user determines whether the air tightness of the wire harness meets the standard by observing whether there are bubbles in the water inside the fixture body. If it meets the standard, the winding will continue. If it does not meet the standard, the designated position will be marked for subsequent processing. After the winding is completed, the user rotates the mounting bolt through an external tool until the mounting bolt is removed from the inside of the plug-in block, and the limit on the winding roller is released. Finally, the user removes the winding roller wrapped with the wire harness. In this way, one detection and winding work is completed, which greatly improves the winding efficiency.

[0007] As a preferred implementation of a new energy vehicle high-voltage wire harness air tightness detection fixture, a feed inlet is provided on the left side of the water removal tank, and a material guide port is provided on the right side of the water removal tank.

[0008] By adopting the above scheme, the wire harness can be quickly imported and exported through the setting of the feed port and the guide port, which is convenient for subsequent work.

[0009] As a preferred embodiment of the air tightness detection fixture for high-voltage wire harnesses of new energy vehicles, the top of the dewatering tank is fixedly connected to an electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected to a movable plate, the bottom of the movable plate is fixedly connected to a connecting column, the bottom of the connecting column is fixedly connected to an upper pressure plate, the bottom of the inner cavity of the dewatering tank is fixedly connected to a load-bearing plate, the top of the load-bearing plate is fixedly connected to a lower pressure plate, and sponges are bonded to the bottom of the upper pressure plate and the top of the lower pressure plate.

[0010] By adopting the above scheme, the movable plate is driven downward by the electric telescopic rod, the connecting column is driven downward by the movable plate, and the upper pressure plate is driven downward by the connecting column until the bottom of the upper pressure plate fits with the wiring harness on the lower pressure plate, and the sponges at the bottom of the upper pressure plate and the top of the lower pressure plate are used to absorb water on the surface of the wiring harness to prevent moisture from remaining on the surface of the wiring harness.

[0011] As a preferred implementation of a new energy vehicle high-voltage wire harness airtightness detection fixture, a power supply box is fixedly connected to the top of the substrate and located on the back of the water removal tank, and a battery is provided in the inner cavity of the power supply box.

[0012] By adopting the above scheme, the electrical equipment is powered by the battery to maintain the normal operation of the electrical equipment.

[0013] As a preferred implementation of a new energy vehicle high-voltage wire harness airtightness detection fixture, slide grooves are provided on both sides of the inner cavity of the water removal tank, and the two ends of the movable plate are slidably connected to the inner cavity of the slide grooves.

[0014] By adopting the above solution, the movable plate is limited by setting the slide groove, the shaking of the movable plate during operation is reduced, and the stability of the movable plate is greatly improved.

[0015] As a preferred implementation of a new energy vehicle high-voltage wire harness airtightness detection fixture, threaded blocks are fixedly connected to both sides of the front and back surfaces of the substrate, and the inner cavity of the threaded block is provided with a fastening bolt.

[0016] By adopting the above solution, the base plate can be quickly disassembled and assembled by setting the bolts and using them in conjunction with external tools, which greatly improves the efficiency of disassembly and assembly.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model drives the winding roller to rotate through the plug-in block, and the wire harness is wound by the winding roller. During the winding process, the user determines whether the air tightness of the wire harness meets the standard by observing whether there are bubbles in the water inside the fixture body. If it meets the standard, the winding will continue. If it does not meet the standard, the designated position will be marked for subsequent processing. After the winding is completed, the user rotates the mounting bolt through an external tool until the mounting bolt is removed from the inside of the plug-in block, releasing the limit on the winding roller. Finally, the user removes the winding roller wrapped with the wire harness, thus completing one detection and winding work, thereby greatly improving the winding efficiency.

[0019] 2. The utility model drives the movable plate downward through the electric telescopic rod, drives the connecting column downward through the movable plate, and drives the upper pressing plate downward through the connecting column until the bottom of the upper pressing plate fits with the wiring harness on the lower pressing plate, and utilizes the sponge at the bottom of the upper pressing plate and the top of the lower pressing plate to absorb water on the surface of the wiring harness to prevent moisture from remaining on the surface of the wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the water removal tank of the utility model;

[0022] Figure 3 It is an enlarged view of point A of the present utility model.

[0023] In the figure: 1. Base plate; 2. Fixture body; 3. Limit roller; 4. Water removal tank; 5. Electric telescopic rod; 6. Moving plate; 7. Connecting column; 8. Upper pressure plate; 9. Load-bearing plate; 10. Lower pressure plate; 11. Vertical plate; 12. Motor; 13. Rotating rod; 14. Plug-in block; 15. Winding roller; 16. Mounting bolts. DETAILED DESCRIPTION

[0024] See also Figure 1-3 A new energy vehicle high-voltage wire harness airtightness detection fixture comprises a substrate 1 and a winding roller 15. A fixture body 2 is fixedly connected to the left side of the top of the substrate 1, and a limiting roller 3 is provided in the inner cavity of the fixture body 2. Through holes are provided on both sides of the fixture body 2. A water removal tank 4 is fixedly connected to the top of the substrate 1 and located on the right side of the fixture body 2. Figure 2As shown, the top of the dewatering tank 4 is fixedly connected with an electric telescopic rod 5, the bottom of the electric telescopic rod 5 is fixedly connected with a moving plate 6, the bottom of the moving plate 6 is fixedly connected with a connecting column 7, the bottom of the connecting column 7 is fixedly connected with an upper pressing plate 8, the bottom of the inner cavity of the dewatering tank 4 is fixedly connected with a load-bearing plate 9, the top of the load-bearing plate 9 is fixedly connected with a lower pressing plate 10, the bottom of the upper pressing plate 8 and the top of the lower pressing plate 10 are both bonded with sponges, the moving plate 6 is driven downward by the electric telescopic rod 5, the connecting column 7 is driven downward by the moving plate 6, and the upper pressing plate 8 is driven downward by the connecting column 7 until the bottom of the upper pressing plate 8 is aligned with the lower pressing plate 1 0, and the sponge at the bottom of the upper pressing plate 8 and the top of the lower pressing plate 10 is used to absorb the water on the surface of the wiring harness to prevent moisture from remaining on the surface of the wiring harness. The rear end of the top right side of the base plate 1 is fixedly connected with a vertical plate 11, and the back of the vertical plate 11 is fixedly installed with a motor 12, the output end of the motor 12 is fixedly connected with a rotating rod 13, and the front surface of the rotating rod 13 is fixedly connected with a plug-in block 14, the inner wall of the plug-in block 14 is plugged with one end of the winding roller 15, and the plug-in block 14 and one end of the winding roller 15 are fixed by installing bolts 16, and water is injected into the interior of the fixture body 2, and the water capacity is lower than the fixture body The height of the through holes on both sides of the body 2 is adjusted. After the injection is completed, the user inputs the wiring harness to be detected into the interior of the jig body 2 through the through hole on the left side of the jig body 2, and makes the wiring harness located below the limiting roller 3, and is transported to the interior of the dewatering tank 4 through the through hole on the right side of the jig body 2 and the feed port on the left side of the dewatering tank 4, so that the surface of the wiring harness passes through the top of the lower pressure plate 10, and then is output through the guide port on the right side of the dewatering tank 4, and is wound on the surface of the winding roller 15. After the preparation work is completed, the motor 12 drives the rotating rod 13 to rotate, and the rotating rod 13 drives the plug-in block 14 to rotate, and the plug-in block 14 is connected to the wiring harness. The winding roller 15 is driven to rotate, and the wire harness is wound by the winding roller 15. During the winding process, the user determines whether the air tightness of the wire harness meets the standard by observing whether there are bubbles in the water inside the fixture body 2. If it meets the standard, the winding will continue. If it does not meet the standard, the designated position will be marked for subsequent processing. After the winding is completed, the user rotates the mounting bolt 16 through an external tool until the mounting bolt 16 is removed from the inside of the plug-in block 14, and the limit on the winding roller 15 is released. Finally, the user removes the winding roller 15 wrapped with the wire harness. In this way, a detection and winding work is completed, which greatly improves the winding efficiency.

[0025] The left side of the water removal tank 4 is provided with a feed inlet, and the right side of the water removal tank 4 is provided with a guide port. Through the setting of the feed inlet and the guide port, the wire harness can be quickly introduced and output, which is convenient for subsequent work. Figure 1 As shown, a power supply box is fixedly connected to the top of the substrate 1 and the back of the water removal tank 4, and a battery is provided in the inner cavity of the power supply box. The battery is provided to supply power to the electrical equipment to maintain the normal operation of the electrical equipment. Figure 2As shown, both sides of the inner cavity of the water tank 4 are provided with chutes, and the two ends of the movable plate 6 are slidably connected with the inner cavity of the chutes. By setting the chutes, the movable plate 6 is limited, the shaking of the movable plate 6 during operation is reduced, and the stability of the movable plate 6 is greatly improved. Figure 1 As shown, both sides of the front and back surfaces of the substrate 1 are fixedly connected with threaded blocks, and the inner cavity of the threaded blocks is provided with fastening bolts. By setting the bolts and using them in conjunction with external tools, the substrate 1 can be quickly disassembled and assembled, greatly improving the efficiency of disassembly and assembly.

[0026] When in use, the user first injects water into the interior of the jig body 2, and the capacity of the water is lower than the height of the through holes opened on both sides of the jig body 2. After the injection is completed, the user inputs the wiring harness to be detected into the interior of the jig body 2 through the through hole on the left side of the jig body 2, and makes the wiring harness be located below the limiting roller 3, and is transported to the interior of the dewatering tank 4 through the through hole on the right side of the jig body 2 and the feed port on the left side of the dewatering tank 4, so that the surface of the wiring harness passes through the top of the lower pressing plate 10, and then is output through the guide port on the right side of the dewatering tank 4, and is wound around the surface of the winding roller 15, and at the same time, the movable plate 6 is driven downward by the electric telescopic rod 5, and the connecting column 7 is driven downward by the movable plate 6, and the upper pressing plate 8 is driven downward by the connecting column 7 until the bottom of the upper pressing plate 8 fits with the wiring harness on the lower pressing plate 10. During the winding process, the bottom of the upper pressing plate 8 is used to fit with the lower pressing plate 10. 0 The sponge on the top of the wire harness absorbs the water on the surface of the wire harness to prevent moisture from remaining on the surface of the wire harness. After the preparation work is completed, the motor 12 drives the rotating rod 13 to rotate, the rotating rod 13 drives the plug-in block 14 to rotate, and the plug-in block 14 drives the winding roller 15 to rotate, and the wire harness is wound by the winding roller 15. During the winding process, the user determines whether the air tightness of the wire harness meets the standard by observing whether there are bubbles in the water inside the fixture body 2. If it meets the standard, continue to wind it up. If it does not meet the standard, mark the designated position for subsequent processing. After the winding is completed, the user rotates the mounting bolt 16 through an external tool until the mounting bolt 16 is removed from the inside of the plug-in block 14, and the limit on the winding roller 15 is released. Finally, the user removes the winding roller 15 wrapped with the wire harness, so that one detection and winding work is completed, which greatly improves the winding efficiency.

Claims

1. A new energy vehicle high voltage wire harness air tightness detection fixture, characterized by: The invention comprises a base plate (1) and a winding roller (15), wherein a fixture body (2) is fixedly connected to the left side of the top of the base plate (1), and a limiting roller (3) is provided in the inner cavity of the fixture body (2), through holes are provided on both sides of the fixture body (2), a water removal tank (4) is fixedly connected to the top of the base plate (1) and located on the right side of the fixture body (2), a vertical plate (11) is fixedly connected to the rear end of the right side of the top of the base plate (1), and a motor (12) is fixedly installed on the back of the vertical plate (11), an output end of the motor (12) is fixedly connected to a rotating rod (13), a front surface of the rotating rod (13) is fixedly connected to a plug-in block (14), an inner wall of the plug-in block (14) is plugged into one end of the winding roller (15), and the plug-in block (14) and one end of the winding roller (15) are fixed by mounting bolts (16).

2. According to claim 1, a new energy vehicle high voltage wire harness air tightness detection fixture is characterized by: A feed inlet is provided on the left side of the dewatering box (4), and a material guide port is provided on the right side of the dewatering box (4).

3. According to claim 1, a new energy vehicle high voltage wire harness air tightness detection fixture is characterized by: The top of the dewatering box (4) is fixedly connected to an electric telescopic rod (5), the bottom of the electric telescopic rod (5) is fixedly connected to a movable plate (6), the bottom of the movable plate (6) is fixedly connected to a connecting column (7), the bottom of the connecting column (7) is fixedly connected to an upper pressure plate (8), the bottom of the inner cavity of the dewatering box (4) is fixedly connected to a load-bearing plate (9), the top of the load-bearing plate (9) is fixedly connected to a lower pressure plate (10), and sponges are bonded to the bottom of the upper pressure plate (8) and the top of the lower pressure plate (10).

4. According to claim 1, a new energy vehicle high voltage wire harness air tightness detection fixture is characterized by: A power supply box is fixedly connected to the top of the base plate (1) and located on the back side of the water removal tank (4), and a storage battery is provided in the inner cavity of the power supply box.

5. The air tightness detection fixture for high-voltage wire harness of new energy vehicles according to claim 3 is characterized by: Slide grooves are provided on both sides of the inner cavity of the dewatering box (4), and the two ends of the movable plate (6) are slidably connected to the inner cavity of the slide grooves.

6. The air tightness detection fixture for high-voltage wire harness of new energy vehicles according to claim 1 is characterized by: Threaded blocks are fixedly connected to both sides of the front surface and the back surface of the base plate (1), and the inner cavity of the threaded block is provided with a fastening bolt.

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