New energy automobile motor end cover connecting structure
By using a sliding connection structure of rubber blocks and plastic sliding blocks, combined with limiting and locking components, the problem of increasing weight and cost while reducing vibration and noise in open water circuit motor structures is solved, achieving the effects of lightweighting and noise reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-03-17
AI Technical Summary
While existing open-loop water circuit motor structures reduce vibration and noise, they increase the weight and cost of the device, making it difficult to achieve lightweight design.
The device employs a sliding connection structure using rubber blocks and plastic sliding blocks, combined with limiting components and engaging components. The cover drives the rubber blocks and sliding blocks to slide and engage, achieving a tight connection between the motor housing and the cover. The cooling components provide effective sealing and cooling.
This design achieves a tight connection between the motor housing and the cover, reducing weight and cost while maintaining good cooling performance, thus achieving the goals of lightweighting and noise reduction.
Smart Images
Figure CN224006560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connection structure technology, and more specifically, to a connection structure for the motor end cover of a new energy vehicle. Background Technology
[0002] As consumers increasingly demand higher levels of comfort in automobiles, the NVH (Noise, Vibration, and Harshness) performance of the entire vehicle is receiving more and more attention. In the field of new energy vehicles, the quality of the motor's NVH directly affects the overall performance of the vehicle. Currently, there are many practices on the market that use sound-insulating materials to wrap the motor to reduce vibration and noise, but improving the NVH performance of the product through structural design is the most effective means.
[0003] In terms of structural design, most manufacturers adopt a closed water circuit. While this effectively prevents motor vibration, the manufacturing methods are mainly low-pressure casting and friction welding, resulting in high production costs and limited cooling efficiency. Open water circuit motors, on the other hand, offer better cooling and can be mass-produced using die casting at lower costs, making them increasingly popular. However, the open opening of the water circuit in motors presents a significant challenge: addressing the resulting motor vibration is a key design consideration. Common approaches to reducing vibration during motor operation include adding numerous bosses connecting the inner and outer walls of the water circuit, reducing the depth of the water circuit, or increasing the average wall thickness of the motor housing.
[0004] While the above methods can reduce vibration during motor operation, they also significantly increase the overall weight of the device, which is not conducive to lightweighting and will also increase costs, greatly reducing the original advantage of low cost. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a new energy vehicle motor end cover connection structure, which has the advantages of reducing weight and not requiring reduction of the water channel depth.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a motor end cover connection structure for a new energy vehicle, comprising a motor housing, a rubber block slidably connected inside the motor housing, a cover fixedly connected to the top of the rubber block, a sealing gasket fixedly connected to the top of the inner cavity of the cover, the cover slidably connected to the outer side of the motor housing, a first limiting component provided on the outer side of the motor housing, the first limiting component including a first limiting block fixedly connected to the outer side of the motor housing, a connecting block fixedly connected to the top of the inner cavity of the motor housing, a first sliding block fixedly connected to the bottom of the connecting block, and the outer side of the first limiting block slidably connected to the outer side of the first sliding block.
[0007] As a preferred embodiment of this utility model, a cooling assembly is provided on the outside of the motor housing. The cooling assembly includes a water-passing frame fixedly connected to the outside of the motor housing. A water inlet pipe is connected inside the water-passing frame, and a drain pipe is connected inside the water-passing frame.
[0008] As a preferred technical solution of this utility model, a second limiting component is provided on the outside of the water passage frame. The second limiting component includes a second limiting block fixedly connected to the inside of the water passage frame. A second sliding block is fixedly connected to the bottom of the connecting block. The outside of the second sliding block is slidably connected to the outside of the second limiting block.
[0009] As a preferred technical solution of this utility model, a locking assembly is provided on the outside of the motor housing. The locking assembly includes four locking blocks fixedly connected to the bottom of the motor housing. The four locking blocks are divided into two groups. A connecting handle is fixedly connected inside each group of locking blocks. The outside of the locking blocks is slidably connected to the outside of the water-passing frame.
[0010] In a preferred embodiment of this invention, the first limiting block is made of rubber and the first sliding block is made of plastic.
[0011] In a preferred embodiment of this invention, the second limiting block is made of rubber and the second sliding block is made of plastic.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model uses a cover to drive a rubber block into the motor housing, thereby sealing the motor housing. This causes the first sliding block to slide outside the first limiting block, thus engaging with the first limiting block to fix the position of the cover. Simultaneously, it causes the second sliding block to slide against the second limiting block, engaging with the second limiting block to complete the connection between the motor housing and the cover. This further increases the tightness of the connection between the cover and the motor housing, thereby achieving weight reduction.
[0014] 2. This utility model uses the cover to drive the locking block to move, thereby locking the locking block with the bottom of the water frame, thereby further increasing the tightness of the connection between the cover and the motor housing, thus achieving weight reduction. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall front view of the present invention;
[0016] Figure 2 This is a top view of the internal components of this utility model.
[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram of area A in the middle;
[0018] Figure 4 This is a bottom view of some components of the present invention;
[0019] Figure 5 This is a bottom view of the internal components of this utility model.
[0020] Figure 6 This utility model Figure 5 A magnified structural diagram of area B in the middle.
[0021] In the diagram: 1. Motor housing; 2. Cover; 3. Rubber block; 4. First limiting block; 5. First sliding block; 6. Connecting block; 7. Second limiting block; 8. Water passage frame; 9. Water inlet pipe; 10. Drain pipe; 11. Second sliding block; 12. Locking block; 13. Connecting handle. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1 to 6 As shown, this utility model provides a motor end cover connection structure for a new energy vehicle, including a motor housing 1, a rubber block 3 slidably connected inside the motor housing 1, a cover 2 fixedly connected to the top of the rubber block 3, a sealing gasket fixedly connected to the top of the inner cavity of the cover 2, the cover 2 slidably connected to the outer side of the motor housing 1, a first limiting component provided on the outer side of the motor housing 1, the first limiting component including a first limiting block 4 fixedly connected to the outer side of the motor housing 1, a connecting block 6 fixedly connected to the top of the inner cavity of the motor housing 1, a first sliding block 5 fixedly connected to the bottom of the connecting block 6, and the outer side of the first limiting block 4 slidably connected to the outer side of the first sliding block 5.
[0024] The cover 2 drives the rubber block 3 into the motor housing 1 to seal the motor housing 1. This causes the first sliding block 5 to slide outside the first limiting block 4, so that the first sliding block 5 and the first limiting block 4 engage with each other, thereby fixing the position of the cover 2. This completes the connection between the motor housing 1 and the cover 2, and the water-passing frame 8 can be sealed by the sealing gasket.
[0025] The motor housing 1 is provided with a cooling assembly on its outer side. The cooling assembly includes a water-passing frame 8 fixedly connected to the outer side of the motor housing 1. A water inlet pipe 9 is connected inside the water-passing frame 8, and a drain pipe 10 is connected inside the water-passing frame 8.
[0026] Water is transferred to the inside of the water-passing frame 8 through the water inlet pipe 9, so that the water can absorb the heat inside the motor housing 1. The water inside the water-passing frame 8 can be replaced through the drain pipe 10, thereby ensuring the cooling efficiency.
[0027] The water-passing frame 8 is provided with a second limiting component on its outer side. The second limiting component includes a second limiting block 7 fixedly connected to the inside of the water-passing frame 8. A second sliding block 11 is fixedly connected to the bottom of the connecting block 6. The outer side of the second sliding block 11 is slidably connected to the outer side of the second limiting block 7.
[0028] The cover 2 drives the second sliding block 11 to slide on the second limiting block 7, thereby making the second sliding block 11 and the second limiting block 7 engage with each other, thereby further increasing the tightness of the connection between the cover 2 and the motor housing 1.
[0029] The motor housing 1 is provided with a locking assembly on the outside. The locking assembly includes four locking blocks 12 fixedly connected to the bottom of the motor housing 1. The four locking blocks 12 are divided into two groups. Each of the two groups of locking blocks 12 is fixedly connected to a connecting handle 13. The outer side of the locking blocks 12 is slidably connected to the outer side of the water passage frame 8.
[0030] By pulling the connecting handle 13, the locking block 12 is slightly deformed, thereby separating the locking block 12 from the water frame 8, making it easier for the cover 2 to separate from the motor housing 1.
[0031] The first limiting block 4 is made of rubber, and the first sliding block 5 is made of plastic.
[0032] By setting the first limiting block 4 to a rubber material and the first sliding block 5 to a plastic material, it is possible to facilitate the engagement of the first sliding block 5 and the first limiting block 4, and also to increase friction, thereby improving the engagement force.
[0033] The second limiting block 7 is made of rubber, and the second sliding block 11 is made of plastic.
[0034] By setting the second limiting block 7 to a rubber material and the second sliding block 11 to a plastic material, it is possible to facilitate the engagement of the second sliding block 11 and the second limiting block 7, and also to increase friction, thereby improving the engagement force.
[0035] The working principle and usage process of this utility model are as follows: The cover 2 drives the rubber block 3 into the motor housing 1 to seal the motor housing 1, thereby driving the first sliding block 5 to slide outside the first limiting block 4, so that the first sliding block 5 and the first limiting block 4 are engaged with each other, thereby fixing the position of the cover 2. At the same time, the second sliding block 11 is driven to slide on the second limiting block 7, so that the second sliding block 11 and the second limiting block 7 are engaged with each other, thereby completing the connection between the motor housing 1 and the cover 2, thereby increasing the tightness of the connection between the cover 2 and the motor housing 1. It also drives the engaging block 12 to engage with the bottom of the water passage frame 8, further increasing the tightness of the connection between the cover 2 and the motor housing 1, and increasing the sealing performance of the sealing gasket on the water passage frame 8, thereby achieving weight reduction.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A new energy automobile motor end cover connecting structure, comprising a motor shell (1), characterized in that: The motor shell (1) is internally connected with a rubber block (3), the top of the rubber block (3) is fixedly connected with a cover (2), the inner cavity of the cover (2) is fixedly connected with a sealing pad, the cover (2) is slidably connected with the outer side of the motor shell (1), the outer side of the motor shell (1) is provided with a first limiting assembly, the first limiting assembly comprises a first limiting block (4) fixedly connected to the outer side of the motor shell (1), the top of the inner cavity of the motor shell (1) is fixedly connected with a connecting block (6), the bottom of the connecting block (6) is fixedly connected with a first sliding block (5), the outer side of the first limiting block (4) is slidably connected with the outer side of the first sliding block (5).
2. The new energy vehicle motor end cover connecting structure according to claim 1, characterized in that: The outer side of the motor shell (1) is provided with a cooling assembly, the cooling assembly comprises a water passing frame (8) fixedly connected to the outer side of the motor shell (1), the inner side of the water passing frame (8) is communicated with a water inlet pipe (9), the inner side of the water passing frame (8) is communicated with a drain pipe (10).
3. The new energy vehicle motor end cover connecting structure according to claim 2, characterized in that: The outer side of the water passing frame (8) is provided with a second limiting assembly, the second limiting assembly comprises a second limiting block (7) fixedly connected to the inner side of the water passing frame (8), the bottom of the connecting block (6) is fixedly connected with a second sliding block (11), the outer side of the second sliding block (11) is slidably connected with the outer side of the second limiting block (7).
4. The new energy vehicle motor end cover connecting structure according to claim 1, characterized in that: The outer side of the motor shell (1) is provided with a clamping assembly, the clamping assembly comprises four clamping blocks (12) fixedly connected to the bottom of the motor shell (1), the four clamping blocks (12) are divided into two groups, the inner side of the two groups of clamping blocks (12) is fixedly connected with a connecting handle (13), the outer side of the clamping block (12) is slidably connected with the outer side of the water passing frame (8).
5. The new energy vehicle motor end cover connecting structure according to claim 1, characterized in that: The first limiting block (4) is made of rubber, and the first sliding block (5) is made of plastic.
6. The new energy vehicle motor end cover connecting structure according to claim 3, characterized in that: The second limiting block (7) is made of rubber, and the second sliding block (11) is made of plastic.