Positioning mechanism for assembling high-voltage and low-voltage wire harnesses

Abstract

The invention discloses a positioning mechanism for assembling high-low voltage wire harnesses, and belongs to the technical field of wire harness assembly.The positioning mechanism comprises a box body, and a box cover is arranged above the box body in a clamped mode; the limiting mechanism is arranged on the inner side of the positioning groove, and the limiting mechanism is used for limiting cables at equal intervals; the safety assembly is arranged in the box body, and the safety assembly is used for improving the tensile property of the cable; and the bearing mechanisms are arranged on the two sides of the box body, and the bearing mechanisms are used for bearing cables. According to the positioning mechanism for assembling the high-voltage and low-voltage wire harnesses, a plurality of cables can be limited at the same time, it is guaranteed that adjacent cables cannot be disordered, parts for stretching are reserved on the cables, the cables cannot be damaged due to excessive stretching when the cables are pulled or overhauled, and meanwhile when the cables are connected with equipment in different directions after being assembled, the cables are not damaged due to excessive stretching. The bending position of the cable can be supported, and damage is reduced.

Description

Technical Field

[0001] This invention relates to the field of wire harness assembly technology, specifically a positioning mechanism for assembling high and low voltage wire harnesses. Background Technology

[0002] High-voltage wiring harnesses in new energy vehicles are mainly used to connect high-power components such as power batteries and motors. These wiring harnesses are mainly divided into AC slow charging and DC fast charging. During assembly, high and low voltage wiring harnesses need to be assembled. In order to ensure the stability of the wiring harness after assembly, corresponding positioning mechanisms are required. For example, a wiring harness fixing device with announcement number CN216598784U relates to the field of wiring harness fixing clamp technology. It includes a positioning clamp for fixing high-voltage wiring harnesses. The inner diameter of the second positioning insertion hole is consistent with that of the first positioning insertion hole. The inner cavity of the positioning clamp is also provided with a first wiring harness channel and a second wiring harness channel for the high-voltage wiring harness to pass through. The two ends of the first wiring harness channel are connected to the first positioning insertion hole, and the two ends of the second wiring harness channel are connected to the second positioning insertion hole. Magnetic adhesive is installed on both sides of the positioning clamp. Two cables can be fixed simultaneously through the first and second wiring harness channels. When installing, the high-voltage wiring harness can pass through the first or second positioning hole and be clamped and limited by the internal clamping mechanism to minimize the risk of the wiring harness falling off due to vibration during vehicle operation. The device can also be magnetically attached to the inner wall of the vehicle using magnetic adhesive. For example, CN221328488U discloses a positioning assembly for fixing automotive wiring harnesses, including a mounting base and terminals. The back of the terminals is fixedly connected to the bottom of the front of the mounting base. A first positioning clamp is provided at the top of the front of the mounting base, and a second positioning clamp is provided on the back of the first positioning clamp. This invention, by setting the first and second positioning clamps, allows the rotating screw to move the second positioning clamp towards the front. The first and second positioning clamps then cooperate to clamp and position the wiring harness, solving the problem of complex wiring harness positioning operations. Furthermore, the lack of a support or lifting structure for the positioning display after positioning makes the wiring harness with the positioning structure prone to downward pulling force under the weight of the positioning structure, which can easily cause poor contact between the wiring harness and the terminals. However, the above positioning mechanism still has the following drawbacks in actual use: 1. Since multiple cables need to be fixed at the same time during wire harness assembly, traditional positioning mechanisms mostly use cable ties to limit and fix multiple cables, which can easily cause wear on the cable sheath and cause adjacent cables to become misaligned, making subsequent maintenance inconvenient. 2. Furthermore, after the cable is fixed, it is prone to excessive stretching and damage when pulled or pulled during maintenance. The cable itself does not have a reserved stretching portion. Also, when the cable needs to be connected to equipment in different directions after assembly, directly bending the cable can easily cause damage at the bend, as there is a lack of support structure.

[0003] To address the aforementioned issues, there is an urgent need for innovative design based on the existing positioning mechanism. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning mechanism for assembling high and low voltage wire harnesses, in order to solve the problems mentioned in the background art. Traditional positioning mechanisms are prone to causing wear on the cable sheath, and adjacent cables are prone to misalignment. The cables themselves do not have reserved stretchable parts, and there is a lack of supporting structure when the cables need to be connected to equipment in different directions after assembly.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a positioning mechanism for assembling high and low voltage wire harnesses, comprising a housing, a cover being fitted onto the top of the housing, and a positioning groove being provided at the connection between the housing and the cover on the side, with a cable passing through the interior of the positioning groove; It also includes: a limiting mechanism, disposed inside the positioning groove, the limiting mechanism being used to limit cables with equal spacing; A safety component is disposed inside the housing. The safety component is used to improve the tensile strength of the cable and to cool the cable to improve safety. The support mechanism is located on both sides of the box body. The support mechanism is used to support the cable and facilitates the cable to be turned to different directions for connection.

[0006] Preferably, the limiting mechanism includes a movable plate disposed inside the positioning groove, and the movable plate has an arc-shaped structure and toothed blocks fixed at equal angles on the movable plate. By setting the movable plate, the cable passing through the positioning groove can be limited.

[0007] Preferably, the toothed block and the rack are meshed together, and the rack is slidably disposed on the inner wall of the box. The movable plate is evenly spaced above the rack. Through the meshing transmission between the rack and the toothed block, the movable plate can be driven to rotate.

[0008] Preferably, the end of the rack is fixedly connected to one end of the lead screw, and an adjusting cylinder is threaded on the outer side of the lead screw. The adjusting cylinder is rotatably disposed inside the housing. When the adjusting cylinder is rotated, the rack can be moved through the threaded transmission with the lead screw.

[0009] Preferably, the safety component includes a movable cylinder movably disposed inside the housing, and the surface of the movable cylinder is uniformly provided with air vents. The two ends of the movable cylinder are rotatably connected to fixed tubes, and the fixed tubes and the interior of the movable cylinder are interconnected. The height of the movable cylinder is the same as the height of the positioning groove. The movable cylinder is designed to raise the height of the cable and has a reserved stretchable structure.

[0010] Preferably, the side of the fixed tube is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is connected to a piston block. A fixed cylinder is sleeved on the outside of the piston block. The connecting rod and the fixed cylinder are elastically slidably connected. When the movable cylinder is subjected to pressure drop, it can push the connecting rod to slide inside the fixed cylinder.

[0011] Preferably, the edge of the piston block slides against the inner wall of the fixed cylinder, and the fixed cylinder is fixed to the inner bottom surface of the box body. The side of the fixed cylinder is connected to the inside of the fixed tube through the gas supply pipe. The piston block compresses the gas in the fixed cylinder, so that the gas is transmitted to the fixed tube through the gas supply pipe.

[0012] Preferably, the supporting mechanism includes a support block fixed to the side of the box, and a rubber block is attached to the side of the support block away from the box, and a connecting block is connected to the side of the rubber block away from the support block. The support block and the connecting block are used to support the cable.

[0013] Preferably, the cross-sections of the support block, rubber block, and connecting block are all arc-shaped, and the support block is rotatably connected to the box body and the box cover, so that the connecting block can be driven to rotate when the cable turns in different directions.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the positioning mechanism for assembling high and low voltage wire harnesses can simultaneously limit the position of multiple cables and ensure that adjacent cables do not become disordered. The cables themselves have a pre-reserved stretchable portion, which prevents damage to the cables due to excessive stretching when subjected to pulling or maintenance. At the same time, when the cables are connected to equipment in different directions after assembly, the mechanism can support the bending points of the cables and reduce damage. The specific details are as follows: 1. Through the threaded transmission between the adjusting cylinder and the lead screw, the lead screw and rack move synchronously. During the movement of the rack, the meshing transmission with the tooth block can drive the movable plate to rotate. Therefore, the movable plate can block the opening of the positioning slot and realize the limit of the cable. 2. The part of the cable inside the box is curved. When it is pulled or pulled during maintenance, it can apply pressure to the movable cylinder, causing the connecting rod to slide in the fixed cylinder, so that the cable has a stretchable part, thus preventing the cable from being damaged due to excessive stretching. Furthermore, when the box vibrates during vehicle operation, it can cause the cable to vibrate synchronously, thereby pushing the connecting rod to slide inside the fixed cylinder, causing the piston block to slide. The piston block compresses the gas inside the fixed cylinder, allowing the gas to be transmitted from the gas supply pipe to the fixed pipe, and finally enters the movable cylinder and is discharged from the gas outlet to blow onto the cable to dissipate heat from the cable. 3. Rotate the support block so that it rotates on the box or cover in the same direction as the cable transmission. This way, when the cable is bent, it can drive the connecting block to rotate, causing the rubber block to deform. Therefore, the connecting block can still support the bent cable, and the bend will not be easily damaged. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the rack structure of the present invention; Figure 4 This is a schematic cross-sectional view of the adjusting cylinder structure of the present invention; Figure 5 This is a schematic diagram of the movable cylinder structure of the present invention; Figure 6 This is a schematic cross-sectional view of the fixed cylinder structure of the present invention; Figure 7 This is a schematic diagram of the connecting block structure of the present invention; Figure 8 This is a schematic diagram of the structure of the connecting block after rotation according to the present invention.

[0016] In the diagram: 1. Box body; 2. Box cover; 3. Positioning groove; 4. Movable plate; 5. Tooth block; 6. Toothed rack; 7. Lead screw; 8. Adjusting cylinder; 9. Movable cylinder; 10. Air outlet; 11. Fixed pipe; 12. Connecting rod; 13. Piston block; 14. Fixed cylinder; 15. Air supply pipe; 16. Support block; 17. Rubber block; 18. Connecting block; 19. Cable. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-8 The present invention provides the following technical solution: Example 1: To address the problems existing in the prior art, this example provides a positioning mechanism for assembling high and low voltage wire harnesses, comprising: a housing 1, a cover 2 engaging on the top of the housing 1, and a positioning groove 3 formed at the connection between the housing 1 and the cover 2, with a cable 19 passing through the interior of the positioning groove 3; further comprising: a limiting mechanism disposed inside the positioning groove 3, used to limit the spacing of the cables 19; a safety component disposed inside the housing 1, used to improve the tensile strength of the cables 19 and to cool the cables 19 to enhance safety; and a supporting mechanism disposed on both sides of the housing 1, used to support the cables 19 and to facilitate the connection of the cables 19 in different directions.

[0019] Because multiple cables 19 need to be secured simultaneously during wire harness assembly, traditional positioning mechanisms mostly use cable ties to limit and secure these cables 19. This can easily cause wear to the outer sheath of the cables 19, and adjacent cables 19 can easily become misaligned, making subsequent maintenance inconvenient. Figures 1-4 As shown, the limiting mechanism includes a movable plate 4 disposed inside the positioning groove 3, and the movable plate 4 has an arc-shaped structure, with toothed blocks 5 fixed at equal angles on the movable plate 4; the toothed blocks 5 and the rack 6 are meshed together, and the rack 6 is slidably disposed against the inner wall of the box 1, and the movable plate 4 is evenly spaced above the rack 6; the end of the rack 6 is fixedly connected to one end of the lead screw 7, and an adjusting cylinder 8 is threaded onto the outer side of the lead screw 7, and the adjusting cylinder 8 is rotatably disposed inside the box 1; firstly, the cable 19 to be assembled is placed... The cable 19 passes through the positioning groove 3 on the box body 1. Then, the adjusting cylinder 8 is rotated. Through the threaded transmission between the adjusting cylinder 8 and the lead screw 7, the lead screw 7 and the rack 6 move synchronously. During the movement of the rack 6, it can drive the movable plate 4 to rotate through the meshing transmission with the tooth block 5. Therefore, the movable plate 4 can block the opening of the positioning groove 3, realize the limitation of the cable 19, and can simultaneously limit multiple cables 19 synchronously, ensuring that adjacent cables 19 are not disordered, which is convenient for subsequent maintenance. Then, the box cover 2 is closed on the box body 1.

[0020] Example 2: Existing cables 19, after being fixed, are prone to excessive stretching and damage when pulled or stretched during maintenance. Cables 19 themselves do not have a pre-existing stretchable portion. Therefore, this example addresses this issue through the following technical solution: Figure 2 and Figures 5-6As shown, the safety component includes a movable cylinder 9 movably disposed inside the housing 1, with air vents 10 evenly spaced on its surface. Fixed tubes 11 are rotatably connected to both ends of the movable cylinder 9, and the fixed tubes 11 and the interior of the movable cylinder 9 are interconnected. The height of the movable cylinder 9 is also the height of the positioning groove 3. The side of the fixed tube 11 is fixedly connected to one end of a connecting rod 12, and the other end of the connecting rod 12 is connected to a piston block 13. A fixed cylinder 14 is fitted around the outside of the piston block 13, and the connecting rod 12 and the fixed cylinder 14 are elastically slidably connected. The edge of the piston block 13 slides against the inner wall of the fixed cylinder 14, and the fixed cylinder 14 is fixed to the inner bottom surface of the housing 1. The side of the fixed cylinder 14 is connected to the interior of the fixed tube 11 via an air supply pipe 15. When the cable 19 passes through the interior of the housing 1, the movable cylinder 9 lifts the cable 19, so the portion of the cable 19 inside the housing 1 is bent. When pulled or pulled during maintenance, the cable 19 will bend. The spring can apply pressure to the movable cylinder 9, causing the connecting rod 12 to slide within the fixed cylinder 14, thus giving the cable 19 a stretchable portion. This prevents damage to the cable 19 due to excessive stretching. When the cable 19 is no longer stretched, the spring's rebound can cause the movable cylinder 9 to rise and return to its original position, providing renewed support for the cable 19. Since the cable 19 is concentrated inside the housing 1, its heat dissipation is poor. When the housing 1 vibrates during vehicle operation, it causes the cable 19 to vibrate synchronously, which in turn pushes the connecting rod 12 to slide within the fixed cylinder 14, causing the piston block 13 to slide. The piston block 13 compresses the gas within the fixed cylinder 14, allowing the gas to be transmitted from the air supply pipe 15 to the fixed pipe 11, and finally enters the movable cylinder 9, exiting through the air outlet 10 and blowing onto the cable 19 to dissipate heat. This improves the heat dissipation effect, and the continuous vibration of the cable 19 ensures that the gas is continuously discharged.

[0021] Example 3: When the existing cable 19 needs to be connected to equipment in different directions after assembly, directly bending the cable 19 can easily cause damage to the bend, as it lacks a supporting structure. Therefore, this example uses the following technical solution, such as... Figures 7-8As shown, the supporting mechanism includes a support block 16 fixed to the side of the box body 1, and a rubber block 17 is attached to the side of the support block 16 away from the box body 1, and a connecting block 18 is connected to the side of the rubber block 17 away from the support block 16; the cross-sections of the support block 16, the rubber block 17, and the connecting block 18 are all arc-shaped structures, and the support block 16 is rotatably connected to the box body 1 and the box cover 2; when the cable 19 passes through the inside of the box body 1, the support of the support block 16 and the connecting block 18 can ensure the flatness of the transmission. When it is necessary to switch to connect to different devices, bend the connection between cable 19 and box 1, and rotate the support block 16 according to the direction so that the support block 16 rotates on box 1 or box cover 2 in the same direction as the transmission direction of cable 19. In this way, after the cable 19 is bent, it can drive the connecting block 18 to rotate, so that the connecting block 18 is perpendicular to the support block 16, causing the rubber block 17 to deform. Therefore, the connecting block 18 can still support the bent cable 19, ensuring stability, and the bent part will not be easily damaged.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning mechanism for assembling high and low voltage wire harnesses, comprising a housing (1), a cover (2) being engaged on the top of the housing (1), and a positioning groove (3) being provided at the connection between the side of the housing (1) and the cover (2), and a cable (19) passing through the inside of the positioning groove (3). Its features are, Also includes: A limiting mechanism is provided inside the positioning groove (3), and the limiting mechanism is used to limit the cables (19) with equal spacing; A safety component is disposed inside the housing (1). The safety component is used to improve the tensile strength of the cable (19) and to cool the cable (19) to improve its safety. The support mechanism is provided on both sides of the box (1). The support mechanism is used to support the cable (19) and facilitates the cable (19) to be turned to different directions for connection.

2. The positioning mechanism for assembling high and low voltage wire harnesses according to claim 1, characterized in that: The limiting mechanism includes a movable plate (4) disposed inside the positioning groove (3), and the movable plate (4) has an arc-shaped structure, and toothed blocks (5) are fixed at equal angles on the movable plate (4).

3. The positioning mechanism for assembling high and low voltage wire harnesses according to claim 2, characterized in that: The toothed block (5) and the toothed rack (6) are meshed together, and the toothed rack (6) is slidably disposed on the inner wall of the box body (1), and the movable plate (4) is equally spaced above the toothed rack (6).

4. The positioning mechanism for assembling high and low voltage wire harnesses according to claim 3, characterized in that: The end of the rack (6) is fixedly connected to one end of the lead screw (7), and the outer side of the lead screw (7) is threaded with an adjusting cylinder (8), which is rotatably disposed inside the box body (1).

5. A positioning mechanism for assembling high and low voltage wire harnesses according to claim 1, characterized in that: The safety component includes a movable cylinder (9) that is movably disposed inside the box (1), and the surface of the movable cylinder (9) is uniformly provided with air vents (10), and the two ends of the movable cylinder (9) are rotatably connected to fixed tubes (11), and the interior of the fixed tubes (11) and the movable cylinder (9) are interconnected, and the height of the movable cylinder (9) is the height of the positioning groove (3).

6. A positioning mechanism for assembling high and low voltage wire harnesses according to claim 5, characterized in that: The side of the fixed tube (11) is fixedly connected to one end of the connecting rod (12), and the other end of the connecting rod (12) is connected to a piston block (13). A fixed cylinder (14) is sleeved on the outside of the piston block (13), and the connecting rod (12) and the fixed cylinder (14) are elastically slidably connected.

7. A positioning mechanism for assembling high and low voltage wire harnesses according to claim 6, characterized in that: The piston block (13) slides against the inner wall of the fixed cylinder (14) at its edge, and the fixed cylinder (14) is fixed to the inner bottom surface of the box body (1), and the side of the fixed cylinder (14) is connected to the inside of the fixed pipe (11) through the gas supply pipe (15).

8. A positioning mechanism for assembling high and low voltage wire harnesses according to claim 1, characterized in that: The supporting mechanism includes a support block (16) fixed to the side of the box body (1), and a rubber block (17) is attached to the side of the support block (16) away from the box body (1), and a connecting block (18) is connected to the side of the rubber block (17) away from the support block (16).

9. A positioning mechanism for assembling high and low voltage wire harnesses according to claim 8, characterized in that: The cross-sections of the support block (16), rubber block (17) and connecting block (18) are all arc-shaped, and the support block (16) is rotatably connected to the box body (1) and the box cover (2).

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