Installation tool for threaded buckle connector of controller
By designing a controller threaded snap-fit connector installation tool that includes a handle, an auxiliary angle plate, an arc-shaped handle, and a fixed ball, the problems of insufficient assembly space and tightening difficulties are solved, achieving high-precision assembly consistency. This tool is suitable for threaded snap-fit connectors of new energy vehicle controllers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING NORTH VEHICLE GROUP CORP
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-15
AI Technical Summary
The controller's threaded snap-fit connector has limited assembly space and is difficult to tighten. The manual tightening force is hard to control, making it impossible to guarantee assembly consistency.
A controller threaded snap-fit connector installation tool was designed, including a handle, an auxiliary angle disc, an arc-shaped handle, a guide post, and a fixing ball. The combination of these components enables precise assembly of the controller threaded snap-fit connector, and the auxiliary angle disc is used to measure the tightening angle to ensure assembly consistency.
It achieves precise assembly of controller connectors, improves torque accuracy during assembly, is suitable for threaded snap-fit connectors of controllers of different diameters, and has a simple structure, low cost and high reliability.
Smart Images

Figure CN224239484U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical assembly technology, specifically relating to a controller threaded snap-fit connector installation tool. Background Technology
[0002] High-voltage wiring harnesses for new energy vehicle controllers feature a threaded locking snap-fit structure, primarily used in components such as generator controllers and drive motor controllers. This threaded locking snap-fit structure achieves tightening primarily through threads at the plug and socket connections. However, current threaded locking snap-fit connectors present challenges in actual assembly. Because high-voltage cables often contain multiple bundles of U, V, and W phase AC cables, the limited assembly space makes tightening difficult. While the snap-fit design allows for manual tightening, it lacks precise control over the tightness, making it impossible to guarantee consistent assembly for larger three-phase AC cable bundles. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] This utility model proposes a controller threaded snap-fit connector installation tool to solve the technical problems of limited assembly space, difficulty in tightening, insufficient space for wrench access, difficulty in controlling manual tightening force, and inability to guarantee assembly consistency of controller threaded snap-fit connectors, thereby achieving precise assembly of controller connectors.
[0005] (II) Technical Solution
[0006] To solve the above-mentioned technical problems, this utility model proposes a controller threaded snap-fit connector installation tool, which includes a handle, an auxiliary angle plate, an arc-shaped handle, a guide post, and a fixing ball. The arc-shaped handle has an inner arc, the fixing ball is installed at the front end of the arc-shaped handle, and the handle is installed at the rear end of the arc-shaped handle. A groove is machined in the middle of the end of the handle. An arc-shaped groove is machined on the auxiliary angle plate. After the fixing post is inserted into the arc-shaped groove, the upper and lower ends of the fixing post are fixed in the groove at the end of the handle. The handle can move within the arc-shaped groove of the auxiliary angle plate through the fixing post, achieving a sliding connection between the auxiliary angle plate and the handle.
[0007] Furthermore, the fixed sphere is welded to the front end of the arc-shaped handle.
[0008] Furthermore, the handle is welded to the rear end of the curved handle.
[0009] Furthermore, the inner diameter of the arc-shaped handle is larger than the diameter of the controller's threaded snap-fit connector.
[0010] Furthermore, the diameter of the fixed sphere matches the inner groove on the controller's snap-fit connector.
[0011] Furthermore, the upper and lower ends of the fixing post are welded into the end groove of the handle.
[0012] Furthermore, the front end of the arc-shaped handle has a mounting hole machined on the side near the fixed sphere. The belt buckle is fixed in the mounting hole by a fixing pin, and the belt passes through the belt buckle and is bonded and fixed to itself.
[0013] Furthermore, the length of the belt can be adjusted.
[0014] (III) Beneficial Effects
[0015] This utility model discloses a controller threaded snap-fit connector installation tool. The tool includes a handle, an auxiliary angle plate, an arc-shaped handle, a guide post, and a fixed ball. The arc-shaped handle has an inner arc, the fixed ball is installed at the front end of the arc-shaped handle, and the handle is installed at the rear end of the arc-shaped handle. A groove is machined in the middle of the end of the handle. An arc-shaped groove is machined on the auxiliary angle plate. After the fixed post is inserted into the arc-shaped groove, its upper and lower ends are fixed in the groove at the end of the handle. The handle can move within the arc-shaped groove of the auxiliary angle plate via the fixed post, achieving a sliding connection between the auxiliary angle plate and the handle. This utility model can be adapted to different diameter controller threaded snap-fit connectors by changing the dimensions of the handle, arc-shaped handle, and fixed ball according to specific needs. This utility model has a simple and clear structure, adopts simple manufacturing methods such as welding, and is low in cost and highly reliable. The use of the auxiliary angle plate can improve the torque accuracy during assembly, adapting to high-precision assembly. In practical applications, this tool can be used in either the forward or reverse direction to achieve the process of applying or removing force to the connector. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the controller threaded snap-fit connector installation tool of this utility model;
[0017] Figure 2a This is a top view of the controller threaded snap-fit connector installation tool of this utility model. Figure 2b Main sectional view;
[0018] Figure 3 This is a side view of the controller threaded snap-fit connector installation tool of this utility model in use.
[0019] Figure 4 This is a top view of the controller threaded snap-fit connector installation tool of this utility model in use. Detailed Implementation
[0020] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0021] This embodiment proposes a controller threaded snap-fit connector installation tool, the overall structure of which is as follows: Figure 1 , 2a As shown in Figure 2b, it includes a handle 101, an auxiliary angle disc 102, an arc-shaped handle 103, a guide post 104, a fixed ball 105, a fixed pin 106, a belt buckle 107, and a belt 108.
[0022] A fixed sphere 105 is welded to the front end of the arc-shaped handle 103, and a handle 101 is welded to the rear end of the arc-shaped handle 103. A groove is machined in the middle of the end of the handle 101. An arc-shaped groove is machined on the auxiliary angle disk 102. After the fixed post 104 is inserted into the arc-shaped groove, the upper and lower ends of the fixed post 104 are welded to the groove at the end of the handle 101. The handle 101 can move within the arc-shaped groove of the auxiliary angle disk 102 through the fixed post 104, and the auxiliary angle disk 102 and the handle 101 are slidably connected.
[0023] The front end of the arc-shaped handle 103 has a mounting hole on the side near the fixed ball 105. The belt buckle 107 is fixed in the mounting hole by the fixing pin 106. The belt 108 passes through the belt buckle 107 and is bonded to itself.
[0024] The length of the belt 108 is adjustable. The inner diameter of the arc-shaped handle 103 is designed according to the size of the threaded snap-fit connector of the controller to be installed. The diameter of the fixing ball 105 is designed according to the radius of the inner groove on the controller snap-fit connector.
[0025] The method of using the controller threaded snap-fit connector installation tool of this utility model is as follows:
[0026] Install the controller threaded snap-fit connector installation tool from top to bottom, avoiding the cable, onto the controller threaded snap-fit connector. At this point, the fixing ball 105 is positioned in the groove of the controller threaded snap-fit connector, so that the handle 101 presses against the other side of the controller threaded snap-fit connector. Rotate to tighten the controller threaded snap-fit connector. For controller threaded snap-fit connectors of different diameters, pass the belt 108 through the connector and belt buckle 107, using friction to tighten. During tightening, use the auxiliary angle dial 102 to measure the tightening angle.
[0027] like Figure 3 and 4 As shown, the installation process for the threaded clips of the U, V, and W three-phase AC cables of a certain model generator controller is as follows:
[0028] 1. Based on the size of the threaded snap-fit connector that the motor controller 2 needs to tighten, select the appropriate controller threaded snap-fit connector installation tool 1, mainly ensuring that the inner diameter of the arc-shaped handle of the controller threaded snap-fit connector installation tool 1 is greater than or close to the diameter of the controller threaded snap-fit connector 2.
[0029] 2. Tighten the threaded snap-fit connector of motor controller 2 by hand to the maximum force;
[0030] 3. Place the controller threaded snap-fit connector installation tool 1 from top to bottom onto the connector to be tightened. At this time, the fixing ball 105 is located in the groove of the threaded snap-fit connector of the motor controller 2. Confirm whether the handle 101 on the other side can hold the connector. If it can, tighten it directly. If there is a gap, wrap the belt 108 around the connector and pass it through the belt buckle 107 again to ensure a tight fit without looseness. Then apply force in the tightening direction to continue tightening.
[0031] 4. During the tightening process, use the auxiliary angle plate 102 to measure the tightening angle. Keep the auxiliary angle plate 102 stationary during tightening. Before tightening, record the position of the handle 101 on the angle plate. During tightening, the handle 101 will change relative position with the guide post 104 on the arc groove of the auxiliary angle plate 102. Record the angle marked on the auxiliary angle plate 102 after tightening. Subtract the angle after tightening from the angle before tightening to get the actual tightening angle value.
[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A controller threaded snap-fit connector installation tool, characterized in that, The controller threaded snap-fit connector installation tool includes a handle, an auxiliary angle plate, an arc-shaped handle, a guide post, and a fixed ball. The arc-shaped handle has an inner arc, the fixed ball is installed at the front end of the arc-shaped handle, and the handle is installed at the rear end of the arc-shaped handle. A groove is machined in the middle of the end of the handle. An arc-shaped groove is machined on the auxiliary angle plate. After the fixed post is inserted into the arc-shaped groove, the upper and lower ends of the fixed post are fixed in the groove at the end of the handle. The handle can move within the arc-shaped groove of the auxiliary angle plate through the fixed post, and the auxiliary angle plate and the handle are slidably connected.
2. The controller threaded snap-fit connector installation tool as described in claim 1, characterized in that, The fixed sphere is welded to the front end of the arc-shaped handle.
3. The controller threaded snap-fit connector installation tool as described in claim 1, characterized in that, The handle is welded to the rear end of the curved handle.
4. The controller threaded snap-fit connector installation tool as described in claim 1, characterized in that, The inner diameter of the arc-shaped handle is larger than the diameter of the controller's threaded snap-fit connector.
5. The controller threaded snap-fit connector installation tool as described in claim 1, characterized in that, The diameter of the fixed sphere matches the inner groove on the controller's snap-fit connector.
6. The controller threaded snap-fit connector installation tool as described in claim 1, characterized in that, The upper and lower ends of the fixing post are welded to the end groove of the handle.
7. The controller threaded snap-fit connector installation tool as described in claim 1, characterized in that, The front end of the arc-shaped handle has a mounting hole on the side near the fixed sphere. The belt buckle is fixed in the mounting hole by a fixing pin, and the belt passes through the belt buckle and is bonded to itself.
8. The controller threaded snap-fit connector installation tool as described in claim 7, characterized in that, The length of the belt is adjustable.