Wire harness winding and unwinding structure for controller

By integrating the socket assembly and the one-way tension locking device, the problem of poor compatibility between the controller and the motor installation position is solved, enabling flexible wiring harness retraction and convenient management, and reducing production costs.

CN224249101UActive Publication Date: 2026-05-15NEW ANANDA DRIVE TECHN SHANGHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NEW ANANDA DRIVE TECHN SHANGHAI
Filing Date
2025-05-16
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the existing technology, the installation positions of the controller and the motor are poorly compatible, and the length of the wiring harness is inconvenient to store and affects the use, resulting in problems such as the wiring harness being too long or too short.

Method used

A wire harness retraction structure was designed, comprising an integrated socket assembly, a main housing, a circuit board assembly, and a cover plate. It employs a spiral segment waterproof wire harness and a unidirectional tension locking device to achieve flexible wire harness retraction and self-locking functions. Combined with a modular socket structure, it can adapt to different functional requirements.

Benefits of technology

It improves the compatibility of controller and motor installation, simplifies the management and production process of wire harness, reduces manufacturing costs, and facilitates the storage and use flexibility of wire harness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a wire harness winding and unwinding structure for a controller, which comprises an integrated socket assembly arranged at one end of a main shell, a cover plate arranged at the other end of the main shell, and a circuit board assembly arranged in a space surrounded by the integrated socket assembly, the main shell and the cover plate. The integrated socket assembly comprises a base and a wire storage box, the wire storage box comprises a space for accommodating the joint wire harness, a through hole allowing the joint wire harness to pass through is reserved in the base, one end of the joint wire harness is connected with the circuit board assembly, and the other end of the joint wire harness extends out from inside to outside after passing through the wire storage box and the through hole in the base; a joint connected with a motor outgoing line is formed at one end of the joint wire harness extending out of the base. Through the one-way stretching self-locking function, in the stretching process of the wire harness, the pulling force does not need to be kept all the time, the wire harness cannot be automatically withdrawn, when the wire harness needs to be withdrawn, the self-locking function can be relieved, and the rotating disc rotates to drive the wire harness to be withdrawn. The self-locking function can be mutually switched, and the wire harness is more flexible in the using process.
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Description

Technical Field

[0001] This utility model relates to the field of controller structure design, specifically to a wire harness take-up and take-up structure for a controller. Background Technology

[0002] The electric vehicle controller is a core control device used to control the starting, running, forward and reverse movement, speed, and stopping of the electric vehicle motor, as well as other electronic components. It's like the brain of the electric vehicle, a crucial component. The controller has connectors for connecting to the motor's output wires.

[0003] The existing Chinese patent application document with publication number CN218648198U discloses a resolver harness docking structure for a new energy motor controller. The resolver harness has a motor end plug and a PCB end plug at both ends. The motor end plug docks with the motor end resolver socket, and the PCB end plug docks with the PCB end socket.

[0004] In existing technologies, in order to accommodate different installation positions of controllers and motors, the wiring harness of the connector on the controller is usually extended. However, if the wiring harness is too long, it will cause inconvenience in wiring and storage. If the wiring harness is too short, it will reduce its applicability. At present, there is an urgent need in the market for a connector wiring harness structure that is highly adaptable to the installation distance of controllers and motors and is easy to store. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a wire harness retraction and extension structure for a controller.

[0006] According to the present invention, a wiring harness storage and take-up structure for a controller includes an integrated socket assembly, a main housing, a circuit board assembly, a cover plate, and a connector wiring harness. The integrated socket assembly is disposed at one end of the main housing, the cover plate is disposed at the other end of the main housing, and the circuit board assembly is disposed within the space formed by the integrated socket assembly, the main housing, and the cover plate. The integrated socket assembly includes a base and a wire storage box. The wire storage box includes a space for storing the connector wiring harness. The base has a through hole that allows the connector wiring harness to pass through. One end of the connector wiring harness is connected to the circuit board assembly, and the other end of the connector wiring harness extends from the inside to the outside after passing through the through hole in the wire storage box and the base. The end of the connector wiring harness extending out of the base forms a connector for connecting to the motor output wire.

[0007] Preferably, the connector harness includes a helical segment, the helical segment of the connector harness is disposed inside the cable storage box, and the helical segment of the connector harness is elastic.

[0008] Preferably, the connector harness includes a waterproof wire, and the sheath of the connector harness is made of a flexible material.

[0009] Preferably, a winding reel is rotatably arranged inside the wire storage box, the connector wire harness is wound on the winding reel, the innermost connector wire harness is fixedly connected to the winding reel, and a one-way tension locking device is also provided on the winding reel.

[0010] Preferably, the unidirectional tension locking device includes a ratchet, a pawl, and a spring limiting block;

[0011] The ratchet is fixedly connected to the winding reel, the pawl is rotatably disposed inside the wire storage box, the pawl engages with the ratchet, and the spring limiting block is disposed below the pawl and contacts the pawl.

[0012] Preferably, the pawl is provided with a rotating shaft, which is rotatably mounted on the side wall of the cable storage box. One end of the rotating shaft extends out of the cable storage box from the inside to the outside, and a lever is fixedly provided at the end of the rotating shaft extending out of the cable storage box.

[0013] The spring limiting block includes a reset spring and a limiting block. The pawl is provided with a slot. The outside of the wire storage box is provided with a pressing plate. The pressing plate is fixedly connected to the limiting block.

[0014] In the first state: the limiting block is embedded in the slot, and the pawl is separated from the ratchet;

[0015] In the second state: the limiting block is separated from the slot, the lower surface of the pawl contacts the upper surface of the limiting block, and the pawl engages with the ratchet.

[0016] Preferably, the upper surface of the limiting block is spherical, the slot is a semi-circular groove, and the lower surface of the pawl that contacts the limiting block is an inclined plane.

[0017] Preferably, a fixing post is provided on the inner wall of the wire storage box, and the winding reel is rotatably mounted on the fixing post;

[0018] The wire storage box is also equipped with a coil spring. The inner end of the coil spring is fixedly connected to the fixing post, and the outer end of the coil spring is fixedly connected to the winding reel.

[0019] Preferably, the integrated socket assembly has connection holes on its peripheral edge, and the integrated socket assembly is assembled and connected to the main housing through the cooperation of fasteners and connection holes.

[0020] Preferably, the cover plate has connection holes on its peripheral edge, and the cover plate is assembled and connected to the main housing through the cooperation of fasteners and connection holes, and a sealing gasket is also provided between the cover plate and the main housing.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This utility model has a unidirectional tension self-locking function. During the stretching process, the wire harness does not need to maintain tension at all times, and the wire harness will not automatically retract. When the wire harness needs to be retracted, the self-locking function can also be released, and the turntable rotates to drive the wire harness to retract. The self-locking functions can be switched, making the wire harness more flexible in use.

[0023] 2. This utility model uses a spiral spring-loaded waterproof wire harness, which can be adjusted in length during installation, improving the ease of connection with external connectors. The wire harness itself has a spring-loaded design, which can automatically retract into the wire storage box without affecting the internal circuit board.

[0024] 3. This utility model integrates a socket controller to select different numbers of pins and mating shells according to different functions. Compared with a full-function socket, it saves unnecessary wiring harnesses or connectors and reduces manufacturing costs. For different functional needs of users, it is not necessary to add a new mating connector for each functional configuration. It is only necessary to replace the mating shell on the integrated socket, which effectively reduces the difficulty of material management.

[0025] 4. This utility model eliminates the welding process by replacing the pin with a spring pin, thereby improving production efficiency. Attached Figure Description

[0026] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 This is a schematic diagram illustrating the overall structure of the controller, which is the main feature of this utility model.

[0028] Figure 2 This is a schematic diagram illustrating the overall structure of the integrated socket, which is the main feature of this utility model.

[0029] Figure 3 This utility model mainly embodies the integrated socket with spring pins;

[0030] Figure 4 This is a schematic diagram illustrating the main features of the split-type integrated socket of this utility model;

[0031] Figure 5 This is a schematic diagram of the controller structure with a wire storage box, which is the main feature of this utility model.

[0032] Figure 6 This is a schematic diagram of an integrated socket with a self-locking cable storage box, which is the main feature of this utility model.

[0033] As shown in the figure:

[0034] Integrated socket 1, waterproof wire connector 13

[0035] Fixed module 101 and mating plastic housing 14

[0036] Replacement module 102 Pin assembly 15

[0037] Housing 2, Spring Pin 17

[0038] Circuit board assembly 3, cable storage box 18

[0039] Connecting plate 4, fixing post 181

[0040] Sealing gasket 5, winding reel 20

[0041] Cover plate 6, ratchet 21

[0042] 7 fixing screws, 22 coiled springs

[0043] Base 11, Pawl 23

[0044] Positive and negative power plugs 12, limit blocks 24 Detailed Implementation

[0045] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0046] Example 1

[0047] like Figures 1 to 4 As shown, a modular integrated socket 1 controller according to the present invention includes an integrated socket 1 assembly, a main housing 2, a circuit board assembly 3, and a cover plate 6. The integrated socket 1 assembly is disposed at one end of the main housing 2, and the cover plate 6 is disposed at the other end of the main housing 2. The circuit board assembly 3 is disposed within the space formed by the integrated socket 1 assembly, the main housing 2, and the cover plate 6. The integrated socket 1 assembly includes a fixed module 101 and a replacement module 102. The fixed module 101 integrates plug-in modules with basic essential functions of the controller. The replacement module 102 integrates plug-in modules with optional functions, or may not integrate plug-in modules. Any integrated socket 1 assembly formed by the detachable cooperation of the fixed module 101 and one or more replacement modules 102 can be assembled to the corresponding position of the main housing 2.

[0048] The integrated socket 1 assembly, consisting of a fixed module 101 and a replacement module 102, can be detachably installed at the corresponding position of the main housing 2. During controller manufacturing, the main housing 2, the circuit board assembly 3, and the cover plate 6 can be processed separately from the integrated socket 1 assembly and then assembled. Depending on different functional requirements, the integrated socket 1 assembly consisting of different replacement modules 102 can be selected, enabling mass production and convenient disassembly and assembly.

[0049] Specifically, the main housing 2 can be a hollow rectangle, made of plastic, and waterproof and shockproof. The circuit board is fixed to the reinforcing plate inside the main housing 2 or to the side wall of the main housing 2 using fasteners such as screws. The cover plate 6 can be made of plastic, and its peripheral edges are provided with connection holes. The cover plate 6 is assembled and connected to the main housing 2 through the cooperation of fasteners and connection holes, and a sealing gasket 5 is also provided between the cover plate 6 and the main housing 2. The peripheral edges of the fixing module 101 and / or the replacement module 102 are provided with connection holes. The integrated socket 1 assembly formed by the fixing module 101 and one or more replacement modules 102 is assembled and connected to the main housing 2 through the cooperation of fasteners and connection holes. In this embodiment, the fasteners preferably adopt the fixing screws 7 of the prior art.

[0050] More specifically, the essential functional connectors integrated on the fixed module 101 include: positive and negative power plugs 12: connected to the power supply to power the device; waterproof cable connector 13: connected to the motor output; and plug-in plastic housing 14: connected to the instrument output. Optional functions integrated on the replacement module 102 include one or more of the following: communication, torque, throttle, gear shifting, speed measurement, Hall effect sensors, front and rear lights, left and right turn signals, and one-button start. The connectors for these optional functions are plug-in plastic housings 14.

[0051] Furthermore, the fixing module 101 is connected to the adjacent replacement module 102 via a detachable structure, and the replacement module 102 is connected to the adjacent fixing module 101 and / or replacement module 102 via a detachable structure. The detachable structure includes a snap-fit, a retaining ring, or a detachable connector. Preferably, the side of the fixing module 101 connected to the replacement module 102 is a plane, the side of the replacement module 102 connected to the fixing module 101 and / or replacement module 102 is a plane, the side plane of the fixing module 101 can fit against the side plane of the replacement module 102, and the side plane of the replacement module 102 can fit against the side plane of the fixing module 101 or the side plane of another replacement module 102.

[0052] Furthermore, the integrated socket 1 assembly is electrically connected to the circuit board. Both the fixed module 101 and the replacement module 102 include a base 11, and a mating plastic shell 14 is integrated on the base 11. The base 11, located inside the mating plastic shell 14, has pre-drilled pin holes. A connecting plate 4 is fixedly installed inside the main housing 2. The connecting plate 4 has metal contacts corresponding to the ferrule, and the connecting plate 4 is electrically connected to the circuit board assembly 3.

[0053] The pin hole is fitted with a pin assembly 15, which includes a pin header and / or a spring pin 17.

[0054] In one feasible implementation: the pin header includes straight pin headers and / or bent pin headers.

[0055] In another feasible implementation: one end of the spring core of the spring pin 17 passes through the base 11 from the inside of the housing 2 and extends into the mating plastic housing 14, and the other end of the spring core contacts the metal contact on the connecting plate 4.

[0056] It should be noted that the plastic housing 14 can house pin assemblies 15 with different numbers of pins, currently ranging from 2 to 8 pins, to accommodate different functions.

[0057] During installation, multiple pin holes are pre-drilled on the base 11. The pin assembly 15 on the plastic shell 14 can be inserted into the corresponding holes to connect with the base 11. Then, glue is poured into the sealing groove of the base 11 for sealing and waterproofing. The metal pins can be directly soldered to the circuit board assembly 3 or connected to it via electronic wires to achieve signal connection. Preferably, ordinary metal pins can be replaced with spring pins 17. The connecting plate 4 is pre-fixed inside the shell 2, with corresponding metal contacts pre-drilled on it. During installation, the integrated socket 1 can skip the soldering step, relying on the spring-loaded pins' own spring-loaded characteristics to press against the contacts of the connecting plate 4 to achieve signal connection.

[0058] The fixing module 101 also includes a cable storage box 18, which includes a space for storing waterproof cables. The base 11 of the fixing module 101 has a through hole that allows the waterproof cables to pass through. The waterproof cable connector 13 is located on the side of the base 11 of the fixing module 101 away from the cable storage box 18.

[0059] Based on this embodiment, those skilled in the art can further design the storage of the waterproof line to improve its storage effect.

[0060] Example 2

[0061] like Figures 1 to 6As shown, based on Embodiment 1, a wiring harness retraction structure for a controller provided by the present invention includes an integrated socket 1 assembly, a main housing 2, a circuit board assembly 3, a cover plate 6, and a connector wiring harness. The integrated socket 1 assembly is disposed at one end of the main housing 2, the cover plate 6 is disposed at the other end of the main housing 2, and the circuit board assembly 3 is disposed within the space formed by the integrated socket 1 assembly, the main housing 2, and the cover plate 6.

[0062] The integrated socket 1 assembly includes a base 11 and a cable storage box 18. The cable storage box 18 includes a space for storing connector wire harnesses. The base 11 has a through hole that allows the connector wire harnesses to pass through. One end of the connector wire harness is connected to the circuit board assembly 3. The other end of the connector wire harness extends from the inside to the outside after passing through the through hole on the cable storage box 18 and the base 11. The end of the connector wire harness extending out of the base 11 forms a connector for connecting to the motor output wire.

[0063] In practical use, the connector harness needs to be pulled out from the cable storage box 18 during installation. The length of the connector harness pulled out is determined according to the actual situation. If the connector harness is pulled out too long, it will cause inconvenience in wiring; if the connector harness is pulled out too short, it will not be able to connect to the motor output wire. In this embodiment, the cable storage box 18 is used to store the connector harness. During installation, a specific length of connector harness can be pulled out as needed.

[0064] In one embodiment: the connector harness includes a helical segment, which is disposed within the cable storage box 18 and is elastic. The connector harness includes a waterproof wire, and the sheath of the connector harness is made of a flexible material. The connector harness is spirally housed in the cable storage box 18, and its length meets basic usage scenarios. Furthermore, due to the elasticity of the helical segment, if the pulled-out connector harness is too long, it can retract into the cable storage box 18 under the elastic action of the helical segment, thus ensuring that the length of the connector harness is appropriate. The sheath of the waterproof wire is made of a flexible material and is injection molded in a spiral shape during the harness manufacturing process. The spiral segment of the harness can be orderly placed within the cable storage box 18, and the tail electronic wire is connected to the circuit board.

[0065] When the waterproof cable connector is connected to the motor cable, if the controller installation position exceeds the original distance or the connection position is not conducive to installation, the waterproof cable can be pulled outward to facilitate the connection between the controller and the motor. After installation, the cable harness can be released and it will naturally retract along the spiral path. The retracted cable harness is stored in the cable storage box 18 and will not interfere with the circuit board assembly 3 inside the housing 2 or damage the controller function.

[0066] In another embodiment: a winding reel 20 is rotatably disposed inside the cable storage box 18, and the connector wire harness is wound on the winding reel 20. The innermost coil of the connector wire harness is fixedly connected to the winding reel 20, and a one-way tension locking device is also provided on the winding reel 20. When the connector wire harness is pulled, the winding reel 20 rotates to unwind, and the connector wire harness is pulled out. A fixing post 181 is provided on the inner wall of the cable storage box 18, and the winding reel 20 is rotatably mounted on the fixing post 181.

[0067] Furthermore, the one-way tension locking device includes a ratchet 21, a pawl 23, and a spring limiting block 24. The ratchet 21 is fixedly connected to the winding reel 20. The pawl 23 is rotatably disposed inside the wire storage box 18, engaging with the ratchet 21. The spring limiting block 24 is disposed below the pawl 23 and contacts the pawl 23. A rotating shaft is provided on the pawl 23, rotatably mounted on the side wall of the wire storage box 18. One end of the rotating shaft extends out of the wire storage box 18 from the inside, and a lever is fixedly disposed on the end of the rotating shaft extending out of the wire storage box 18. The spring limiting block 24 includes a return spring and a limiting block 24. A slot is provided on the pawl 23, and a pressing plate is provided on the outside of the wire storage box 18, fixedly connected to the limiting block 24.

[0068] In the first state: the limit block 24 is embedded in the slot, and the pawl 23 is separated from the ratchet 21.

[0069] In the second state: the limit block 24 is separated from the slot, the lower surface of the pawl 23 contacts the upper surface of the limit block 24, and the pawl 23 engages with the ratchet 21.

[0070] With the one-way limiting action of ratchet 21 and pawl 23, when the wire is unloaded, the user pulls the connector wire harness outward, and ratchet 21 and pawl 23 work together to control the winding reel 20 to rotate in one direction, and can lock the position of the winding reel 20.

[0071] Furthermore, a coil spring 22 is also provided inside the wire storage box 18. The inner end of the coil spring 22 is fixedly connected to the fixing post 181, and the outer end of the coil spring 22 is fixedly connected to the winding reel 20. When the winding reel 20 rotates to unwind, the coil spring 22 stores elastic potential energy. When it is necessary to rewind, the operator releases the pawl 23 and ratchet 21 from the winding reel 20 by using the lever and pressing plate. The elastic potential energy of the coil spring 22 is released, driving the winding reel 20 to rotate and rewind.

[0072] In one feasible implementation: the side wall of the cable storage box 18 is provided with a vertical waist-shaped groove and a horizontal waist-shaped groove; the lever can move along the direction of the horizontal waist-shaped groove, and the pressing plate can move along the direction of the vertical waist-shaped groove. When unlocking, the operator operates the pressing plate to move downward along the direction of the vertical waist-shaped groove, and operates the lever to move away from the ratchet 21 along the direction of the horizontal waist-shaped groove, until the limiting block 24 is embedded in the slot. At this time, the pawl 23 separates from the ratchet 21, and the one-way tension locking device releases the lock on the winding reel 20.

[0073] During the stretching process, the ratchet 21 rotates, engaging with the pawl 23 to form an intermittent unidirectional motion mechanism. Each time the wire harness is stretched out a small section, the ratchet 21 rotates one notch. With a relatively large number of teeth at intervals, the stretching is nearly infinitely uniform, resulting in a relatively smooth and controllable stretching speed without significant fluctuations. Each time the pawl 23 is moved, it engages between two teeth of the ratchet 21, creating a self-locking function. The wire can only be stretched outwards in one direction and cannot be reversed. Even when rotated inwards, the wire harness will not automatically retract into the cable storage box 18. When the wire harness is stretched too far and needs to be retracted, the pawl 23 is moved backwards. During this movement, due to the compressible spring below the limit block 24, the pawl 23's slot eventually engages above the limit block 24, separating the ratchet 21 and pawl 23, thus releasing the lock on the wire harness. The inner end of the coil spring 22 is connected to the fixing post 181, and the outer end is connected to the winding reel 20. With the lock disengaged, pushing the wire harness inward, combined with the slight elasticity of the coil spring 22, causes the winding reel 20 to rotate, allowing the wire harness to automatically and smoothly retract. Pressing the limit block 24 down again and sliding the pawl 23 to reset, in conjunction with the ratchet 21, restores the self-locking function.

[0074] In a preferred embodiment: the upper surface of the limiting block 24 is spherical, the slot is a semi-circular groove, and the lower surface of the pawl 23 that contacts the limiting block 24 is an inclined plane.

[0075] The integrated socket 1 assembly has connection holes on its peripheral edge, and is assembled and connected to the main housing 2 through the cooperation of fasteners and connection holes. The cover plate 6 has connection holes on its peripheral edge, and is assembled and connected to the main housing 2 through the cooperation of fasteners and connection holes. A sealing gasket 5 is also provided between the cover plate 6 and the main housing 2.

[0076] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0077] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A wire harness take-up and take-up structure for a controller, characterized in that, The device includes an integrated socket assembly, a main housing, a circuit board assembly, a cover plate, and a connector harness. The integrated socket assembly is located at one end of the main housing, the cover plate is located at the other end of the main housing, and the circuit board assembly is located within the space formed by the integrated socket assembly, the main housing, and the cover plate. The integrated socket assembly includes a base and a cable storage box. The cable storage box includes a space for storing connector wire harnesses. The base has a through hole that allows the connector wire harnesses to pass through. One end of the connector wire harness is connected to the circuit board assembly. The other end of the connector wire harness extends from the inside to the outside after passing through the through hole on the cable storage box and the base. The end of the connector wire harness extending out of the base forms a connector for connecting to the motor output wire.

2. The wire harness take-up and take-down structure for a controller as described in claim 1, characterized in that, The connector harness includes a helical segment, which is disposed inside the cable storage box, and the helical segment of the connector harness is elastic.

3. The wire harness take-up and take-down structure for a controller as described in claim 1, characterized in that, The connector harness includes a waterproof wire, and the sheath of the connector harness is made of a flexible material.

4. The wire harness take-up and take-down structure for a controller as described in claim 1, characterized in that, The cable storage box is rotatably equipped with a winding reel, and the connector cable harness is wound on the winding reel. The innermost connector cable harness is fixedly connected to the winding reel, and the winding reel is also equipped with a one-way tension locking device.

5. The wire harness take-up and take-down structure for a controller as described in claim 4, characterized in that, The unidirectional tension locking device includes a ratchet, a pawl, and a spring limiting block; The ratchet is fixedly connected to the winding reel, the pawl is rotatably disposed inside the wire storage box, the pawl engages with the ratchet, and the spring limiting block is disposed below the pawl and contacts the pawl.

6. The wire harness take-up and take-down structure for a controller as described in claim 5, characterized in that, The pawl is provided with a rotating shaft, which is rotatably mounted on the side wall of the wire storage box. One end of the rotating shaft extends out of the wire storage box from the inside to the outside, and a lever is fixedly provided at the end of the rotating shaft extending out of the wire storage box. The spring limiting block includes a reset spring and a limiting block. The pawl is provided with a slot. The outside of the wire storage box is provided with a pressing plate. The pressing plate is fixedly connected to the limiting block. In the first state: the limiting block is embedded in the slot, and the pawl is separated from the ratchet; In the second state: the limiting block is separated from the slot, the lower surface of the pawl contacts the upper surface of the limiting block, and the pawl engages with the ratchet.

7. The wire harness take-up and take-down structure for a controller as described in claim 6, characterized in that, The upper surface of the limiting block is spherical, the slot is a semi-circular groove, and the lower surface of the pawl that contacts the limiting block is an inclined plane.

8. The wire harness take-up and take-down structure for a controller as described in claim 4, characterized in that, A fixing post is provided on the inner wall of the wire storage box, and the winding reel is rotatably mounted on the fixing post. The wire storage box is also equipped with a coil spring. The inner end of the coil spring is fixedly connected to the fixed post, and the outer end of the coil spring is fixedly connected to the winding reel.

9. The wire harness take-up and take-down structure for a controller as described in claim 1, characterized in that, The integrated socket assembly has connection holes on its peripheral edge, and the integrated socket assembly is assembled and connected to the main housing through the cooperation of fasteners and connection holes.

10. The wire harness take-up and take-down structure for a controller as described in claim 1, characterized in that, The cover plate has connection holes on its peripheral edge. The cover plate is assembled and connected to the main housing through the cooperation of fasteners and connection holes. A sealing gasket is also provided between the cover plate and the main housing.