New energy motor plugging tool
By designing a sealing fixture for new energy motors and using a combination of T-shaped hooks and connecting rod handles, the problem of sealing difficulties in motor airtightness testing was solved, and stability and accuracy were improved.
Patent Information
- Application Number
- CN202422316020.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-09-23
AI Technical Summary
There are difficulties in testing the airtightness of existing new energy vehicle motors, especially due to the lack of appropriate sealing tools, which leads to low accuracy in airtightness testing.
A new energy motor sealing tool was designed, which uses a T-shaped hook to tightly connect with the inner wall of the hole, and adjusts the extension and retraction through a connecting rod handle. Combined with a sealing ring and a shape memory alloy retention mechanism, the stability and accuracy of the sealing are ensured.
It improves the sealing stability of motor holes, avoids gas leakage, ensures the accuracy of airtightness testing, and is adaptable to holes with different wall thicknesses.
Smart Images
Figure CN223650052U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of new energy motor technology, specifically to a sealing tooling for new energy motors. Background Technology
[0002] The demand for new energy vehicle maintenance tools is expanding rapidly, and the technology involved is very extensive, including not only the demand for general-purpose tools, but also the ease of use and usability of various tools, including the airtightness testing of motors.
[0003] The airtightness of existing new energy vehicle motors has a significant impact on the safety of new energy vehicles. Therefore, the airtightness testing of new energy vehicle motors is particularly important. However, the lack of corresponding sealing tools for some holes on the motors has led to difficulties and low accuracy in airtightness testing. Utility Model Content
[0004] In view of this, the purpose of this utility model is to address the shortcomings of the prior art by proposing a sealing tool for new energy motors to solve the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model provides a sealing fixture for a new energy motor, including a device cavity. A fixing plate is fixedly connected to one end of the device cavity. A push rod is slidably connected to the inner surface of the device cavity through a pushing mechanism, and the outer surface of the push rod is slidably connected to the inner surface of the fixing plate. A retaining mechanism is provided on the fixing plate. An embedding hole is provided at the end of the push rod near the device cavity. A T-shaped hook is slidably connected to the inner surface of the device cavity. A sealing ring is provided at the end of the device cavity away from the fixing plate.
[0006] Preferably, the pushing mechanism includes a recessed hole on the outer surface of the push rod, and a first pin is fixedly connected to the outer surface of the fixing plate. The push rod can be pushed and pulled laterally by the pushing mechanism, thereby controlling the displacement of the T-hook.
[0007] Preferably, a swing plate is rotatably connected to the outer surface of the first pin, and a second pin is rotatably connected to the end of the swing plate away from the first pin.
[0008] Preferably, a connecting rod handle is rotatably connected to the outer surface of the second pin, and a third pin is fixedly inserted through the inner side of the push rod, with the outer surface of the third pin rotatably connected to the inner surface of the connecting rod handle.
[0009] Preferably, the retaining mechanism includes an L-shaped plate fixedly connected to the outer surface of the fixing plate, and a shape memory alloy is fixedly connected to the bottom of the L-shaped plate. The retaining mechanism can fix the moved push rod and keep it in a relatively stable state.
[0010] Preferably, one end of the shape memory alloy is provided with a rubber sleeve, and the end of the shape memory alloy away from the rubber sleeve is provided with a rubber plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This new energy motor plugging tool uses a T-shaped hook that fits tightly into the inner wall of the hole. The extension and retraction of the hook can be adjusted by the connecting rod handle, so that the T-shaped hook can be firmly fixed in the motor hole. This fixing mechanism can effectively prevent the plug from falling off due to lack of force points, thereby improving the stability of the plugging.
[0013] 2. In the process of sealing new energy motors, the T-shaped hook is precisely pushed to the appropriate position by the push rod to ensure good fit with the hole wall. It can adapt to holes with different wall thicknesses, and the sealing ring can also fit tightly against the outer wall of the hole. This precise positioning can provide an effective sealing effect and avoid problems such as gas leakage or plug falling off. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this application;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the cavity of the device in this application;
[0016] Figure 3 This is a schematic diagram of the sway bar connection structure of this application;
[0017] Figure 4 This is a schematic diagram of the surface structure of the shape memory alloy in this application.
[0018] The components are: 1. Device cavity; 2. Fixing plate; 3. Push rod; 4. Recessed hole; 5. First pin; 6. Swing plate; 7. Second pin; 8. Connecting rod handle; 9. Third pin; 10. L-shaped plate; 11. Shape memory alloy; 12. Rubber sleeve; 13. Rubber insert plate; 14. Embedded hole; 15. T-shaped hook; 16. Sealing ring. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0020] Please see Figure 1-4A new energy motor sealing fixture includes a device cavity 1, a fixing plate 2 fixedly connected to one end of the device cavity 1, a push rod 3 slidably connected to the inner surface of the device cavity 1 through a pushing mechanism, and the outer surface of the push rod 3 slidably connected to the inner surface of the fixing plate 2. A fixing mechanism is provided on the fixing plate 2. An embedding hole 14 is opened at the end of the push rod 3 near the device cavity 1. A T-shaped hook 15 is slidably connected to the inner surface of the device cavity 1. A sealing ring 16 is provided at the end of the device cavity 1 away from the fixing plate 2.
[0021] With the above technical solution, during the use of this device, the T-shaped hook 15 is inserted obliquely into the hole on the outer wall of the motor, and the connecting rod handle 8 is rotated. The T-shaped hook 15 moves horizontally left and right through the pushing mechanism. When it reaches the appropriate position (the T-shaped hook 15 is in contact with the inner wall of the hole, and the sealing ring 16 is in contact with the outer wall of the hole), the sealing effect can be achieved.
[0022] Specifically, the pushing mechanism includes a recessed hole 4 on the outer surface of the push rod 3, and a first pin 5 is fixedly connected to the outer surface of the fixing plate 2.
[0023] With the above technical solution, as the push rod 3 moves along the inner wall of the device cavity 1, the swing plate 6 will rotate along the first pin 5. The concave hole 4 is designed to allow the second pin 7 to deflect smoothly.
[0024] Specifically, a swing plate 6 is rotatably connected to the outer surface of the first pin 5, and a second pin 7 is rotatably connected to the end of the swing plate 6 away from the first pin 5.
[0025] Through the above technical solution, the design of the first pin 5, the second pin 7 and the third pin 9 are all to cooperate with the push rod 3 in pushing and pulling, among which the second pin 7 has a partial circular motion.
[0026] Specifically, the outer surface of the second pin 7 is rotatably connected to the connecting rod handle 8, and the inner side of the push rod 3 is fixedly provided with the third pin 9, the outer surface of the third pin 9 being rotatably connected to the inner surface of the connecting rod handle 8.
[0027] Through the above technical solution, turning the linkage handle 8 can drive the second pin 7 to shift, and drive one end of the swing plate 6 through the second pin 7.
[0028] Specifically, the retaining mechanism includes an L-shaped plate 10 fixedly connected to the outer surface of the fixing plate 2, and a shape memory alloy 11 fixedly connected to the bottom of the L-shaped plate 10.
[0029] Through the above technical solution, the shape memory alloy 11 has a ring-like design, which has excellent deformation and recovery capabilities.
[0030] Specifically, a rubber sleeve 12 is provided at one end of the shape memory alloy 11, and a rubber insert plate 13 is provided at the other end of the shape memory alloy 11 away from the rubber sleeve 12.
[0031] Through the above technical solution, the inner surface of the rubber sleeve 12 and the outer surface of the rubber insert 13 are designed to mesh, and the shape memory alloy 11 can shrink during the process of staggered insertion.
[0032] Working Principle: This device, when sealing holes on the upper part of the motor, addresses the issue that most holes are sealed with simple plugs. When the motor cavity is inflated, the lack of a stress point makes the plugs prone to falling off, significantly impacting testing. Therefore, this motor sealing fixture utilizes a T-shaped hook 15 structure to hook onto the inner wall of the hole. The extension and retraction of the T-shaped hook 15 are adjusted via the connecting rod handle 8 to ensure a tight fit between the T-shaped hook 15 and the hole, thus forming a seal. First, the T-shaped hook 15 is inserted obliquely into the hole on the outer wall of the motor. Then, the connecting rod handle 8 is rotated. As the connecting rod handle 8 is turned clockwise upwards, the second pin 7 is displaced. During this process, the second pin 7 causes the swing plate 6 to rotate along the first pin 5. The end of the swing plate 6 closest to the second pin 7 gradually moves downwards, thus allowing the connecting rod handle 8 to move more smoothly during the rotation. The push rod 3 is driven by the third pin 9, which pushes the push rod 3 forward along the inner side of the device cavity 1. The push rod 3 then abuts against the T-hook 15 through the recess 14 at its end, causing it to move horizontally until it reaches the appropriate position (i.e., the T-hook 15 is in contact with the inner wall of the hole, and the sealing ring 16 is in contact with the outer wall of the hole). This completes the sealing effect. The T-hook 15 is tightly connected to the inner wall of the motor hole, providing a force point. After the T-hook 15 is pushed to the appropriate position, the shape memory alloy 11 wraps around the push rod 3, and the rubber insert 13 is gradually inserted into the rubber sleeve 12. This causes the shape memory alloy 11 to gradually contract until it stably holds the push rod 3, thus stably limiting the push rod 3. The T-hook 15 is thus kept stable. During this process, the extension and retraction of the T-hook 15 can be adjusted to adapt to holes with different wall thicknesses.
[0033] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sealing fixture for new energy motors, comprising a device cavity (1), characterized in that: One end of the device cavity (1) is fixedly connected to a fixing plate (2). The inner surface of the device cavity (1) is slidably connected to a push rod (3) through a pushing mechanism. The outer surface of the push rod (3) is slidably connected to the inner surface of the fixing plate (2). A fixing mechanism is provided on the fixing plate (2). A recessed hole (14) is provided at the end of the push rod (3) near the device cavity (1). A T-shaped hook (15) is slidably connected to the inner surface of the device cavity (1). A sealing ring (16) is provided at the end of the device cavity (1) away from the fixing plate (2).
2. The new energy motor sealing fixture according to claim 1, characterized in that: The pushing mechanism includes a recess (4) on the outer surface of the push rod (3), and a first pin (5) is fixedly connected to the outer surface of the fixing plate (2).
3. The new energy motor sealing fixture according to claim 2, characterized in that: The outer surface of the first pin (5) is rotatably connected to a swing plate (6), and the end of the swing plate (6) away from the first pin (5) is rotatably connected to a second pin (7).
4. The new energy motor sealing fixture according to claim 3, characterized in that: The outer surface of the second pin (7) is rotatably connected to the connecting rod handle (8), and the inner side of the push rod (3) is fixedly provided with a third pin (9), the outer surface of the third pin (9) is rotatably connected to the inner surface of the connecting rod handle (8).
5. The new energy motor sealing fixture according to claim 1, characterized in that: The retaining mechanism includes an L-shaped plate (10) fixedly connected to the outer surface of the fixing plate (2), and a shape memory alloy (11) is fixedly connected to the bottom of the L-shaped plate (10).
6. The new energy motor sealing fixture according to claim 5, characterized in that: A rubber sleeve (12) is provided at one end of the shape memory alloy (11), and a rubber insert plate (13) is provided at the end of the shape memory alloy (11) away from the rubber sleeve (12).