A new energy vehicle disc motor heat dissipation device
By designing a mesh heat dissipation structure and ventilation slots in the disc motor of new energy vehicles, combined with coolant input, the problem of insufficient motor heat dissipation is solved, achieving efficient heat dissipation and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YUDA AUTO PARTS CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-16
AI Technical Summary
When the disc motor of a new energy vehicle is running at high power, the heat dissipation space is limited, which leads to an increase in the internal temperature of the motor, a decrease in performance, or even damage and a shortened service life.
A mesh-like heat dissipation structure is designed and installed inside the protective structure to increase the contact area between the heat dissipation structure and the protective structure. Heat transfer is accelerated through ventilation slots and copper plates, and rapid heat dissipation is achieved in combination with coolant input.
It improves heat dissipation efficiency, prevents heat buildup, extends motor lifespan, and facilitates motor replacement and maintenance.
Smart Images
Figure CN224367646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor heat dissipation technology, specifically a disc-type motor heat dissipation device for new energy vehicles. Background Technology
[0002] A disc motor is a type of motor in which the rotor and stator are arranged in parallel discs. This type of motor features a flat design, high power density, high efficiency, and low torque ripple. It is particularly suitable for the drive systems of new energy vehicles where space is limited, and is widely used in the automotive, industrial automation and other fields.
[0003] When existing disc motors for new energy vehicles are in use, due to their compact structure and installation inside or near the wheel hub, the heat dissipation space is limited. Often, when running at high power, the heat generated inside the motor is difficult to dissipate quickly, which can easily lead to an increase in the internal temperature of the motor. This can further degrade motor performance, damage the windings, and even shorten the motor's service life. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a heat dissipation device for a disc motor in new energy vehicles. By designing the heat dissipation structure with a mesh pattern and installing it inside a ring-shaped protective structure, the contact area between the heat dissipation structure and the protective structure is increased. This allows the heat dissipation structure to dissipate heat from both the protective structure and the disc motor more quickly, making it less likely for the disc motor to experience heat buildup.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for a disc motor in a new energy vehicle, comprising: a disc motor body, a protective structure slidably connected to the outside of the disc motor body, a cooling structure fixedly connected to the inner wall of the protective structure, the cooling structure including an inlet pipe, a top main pipe fixedly connected to the bottom end of the inlet pipe, a top branch pipe fixedly connected to the outer wall of the top main pipe, a bottom branch pipe slidably connected to the inner wall of the top branch pipe, a bottom main pipe fixedly connected to the outer wall of the bottom branch pipe, and an outlet pipe fixedly connected to the outer wall of the bottom main pipe. By introducing coolant into the cooling structure, the protective device and the disc motor body can be cooled, making it difficult for the disc motor to have difficulty dissipating heat.
[0008] Preferably, the protective structure includes a base plate, a side plate fixedly connected to the outer wall of the top of the base plate, a copper plate fixedly connected to the inner wall of the side plate, and a sliding connection between the outer wall of the side plate and the top plate. Ventilation slots are provided on the outer walls of both the base plate and the top plate. A connecting structure is symmetrically fixedly connected to the outer wall of the base plate. Through the design of the ventilation slots and side plates, air exchange between the inside and outside of the protective structure can be promoted when the disc motor body is operating at high speed. The airflow accelerates the heat dissipation of the disc motor.
[0009] Preferably, the outer wall of the bottom of the copper plate is fixedly connected to the outer wall of the base plate, and the outer wall of the top of the copper plate is slidably connected to the outer wall of the top plate. By setting the copper plate, the heat transfer between the protective structure and the heat dissipation structure can be accelerated, and the heat dissipation structure can accelerate the heat dissipation of the protective structure.
[0010] Preferably, the outer wall of the base plate is fixedly connected to the outer wall of the bottom main pipe, the inner wall of the side plate and the inner wall of the copper plate are slidably connected to the outer wall of the top branch pipe, the inner wall of the side plate and the inner wall of the copper plate are fixedly connected to the outer wall of the bottom branch pipe, and the outer wall of the top plate is fixedly connected to the outer wall of the top main pipe. Through the mesh design of the heat dissipation structure, and the slidable connection between the inner wall of the side plate and the inner wall of the copper plate and the outer walls of the top and bottom branch pipes, the contact area between the heat dissipation structure and the protective structure is increased, so that the heat dissipation structure can more comprehensively dissipate heat from the protective structure.
[0011] Preferably, the connection structure includes a bottom connecting block, a telescopic rod is fixedly connected to the outer wall of the bottom connecting block, a spring is sleeved on the outside of the telescopic rod, a limit block is fixedly connected to the output end of the telescopic rod, and the outer wall of the top of the bottom connecting block is slidably connected to the outer wall of the bottom of the top connecting block. Through the connection structure, the top plate and the bottom plate can be more tightly connected together, making it difficult for the top plate and the bottom plate to fall off when the disc motor body is working.
[0012] Preferably, the outer wall of the bottom connecting block is fixedly connected to the outer wall of the base plate, the outer wall of the top connecting block is fixedly connected to the outer wall of the top plate, one end of the spring is fixedly connected to the outer wall of the bottom connecting block, the other end of the spring is fixedly connected to the outer wall of the limiting block, and the outer wall of the limiting block is slidably connected to the inner wall of the top connecting block. When the limiting block is pressed, the spring and the telescopic rod are tightened, which can contact the limiting block to limit the top connecting block. At this time, the protective structure and the heat dissipation structure can be separated into two parts, which provides convenience for the replacement and maintenance of the disc motor body.
[0013] (III) Beneficial Effects
[0014] This utility model provides a disc-type motor cooling device for new energy vehicles. It has the following beneficial effects:
[0015] 1. This new energy vehicle disc motor cooling device, through the mesh design of the cooling structure and the installation of the cooling structure inside the protective structure, increases the contact area between the cooling structure and the protective structure, which can more quickly dissipate heat from the motor and the protective device, making it difficult for the disc motor to have difficulty dissipating heat.
[0016] 2. This new energy vehicle disc motor cooling device, through the setting of ventilation slots and side plates, can promote the exchange of air inside the protective device with the outside air when the motor is running. The air flow can dissipate heat from the motor. At the same time, the design of the copper plate accelerates the heat transfer between the protective structure and the heat dissipation structure, thereby further improving the heat dissipation effect of the heat dissipation structure.
[0017] 3. The cooling device for the disc motor of this new energy vehicle can separate the protective structure and the cooling structure into two parts through the connection structure, which makes it convenient to replace or repair the disc motor. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of part of the structure of this utility model;
[0020] Figure 3 This is an exploded view of a portion of the structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the protective structure of this utility model;
[0022] Figure 5 This is an exploded view of the protective structure of this utility model;
[0023] Figure 6 This utility model Figure 5 Enlarged view of the structure at point A in the middle;
[0024] Figure 7 This is a schematic diagram of the connection structure of this utility model;
[0025] Figure 8 This is a schematic diagram of the heat dissipation structure of this utility model;
[0026] Figure 9 This utility model Figure 9 Enlarged view of the structure at point B.
[0027] In the diagram: 1. Disc motor body; 2. Protective structure; 20. Base plate; 21. Side plate; 22. Copper plate; 23. Top plate; 24. Ventilation slot; 25. Connecting structure; 250. Bottom connecting block; 251. Telescopic rod; 252. Spring; 253. Limiting block; 254. Top connecting block; 3. Heat dissipation structure; 30. Liquid inlet pipe; 31. Top main pipe; 32. Top branch pipe; 33. Bottom branch pipe; 34. Bottom main pipe; 35. Liquid outlet pipe. Detailed Implementation
[0028] 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.
[0029] Please see Figure 1-9 This utility model provides a technical solution: a heat dissipation device for a disc motor of a new energy vehicle, comprising: a disc motor body 1, a protective structure 2 slidably connected to the outside of the disc motor body 1, and a heat dissipation structure 3 fixedly connected to the inner wall of the protective structure 2. Through the protective structure 2 and the heat dissipation structure 3, coolant is introduced into the heat dissipation structure 3 to quickly dissipate heat from the disc motor body 1.
[0030] The heat dissipation structure 3 includes an inlet pipe 30, a top main pipe 31 fixedly connected to the bottom end of the inlet pipe 30, a top branch pipe 32 fixedly connected to the outer wall of the top main pipe 31, a bottom branch pipe 33 slidably connected to the inner wall of the top branch pipe 32, a bottom main pipe 34 fixedly connected to the outer wall of the bottom branch pipe 33, and an outlet pipe 35 fixedly connected to the outer wall of the bottom main pipe 34. Through the mesh-designed heat dissipation structure 3, the contact area between the heat dissipation structure 3 and the protective structure 2 is increased, so that the heat dissipation structure 3 can dissipate heat from the protective structure 2 and the disc motor body 1 from multiple angles, thereby improving the heat dissipation efficiency.
[0031] The protective structure 2 includes a base plate 20, a side plate 21 fixedly connected to the outer wall of the top of the base plate 20, a copper plate 22 fixedly connected to the inner wall of the side plate 21, and a sliding connection between the outer wall of the side plate 21 and the top plate 23. Ventilation slots 24 are provided on the outer walls of both the base plate 20 and the top plate 23. A connecting structure 25 is symmetrically fixedly connected to the outer wall of the base plate 20. The outer wall of the bottom of the copper plate 22 is fixedly connected to the outer wall of the base plate 20, and the outer wall of the top of the copper plate 22 is slidably connected to the outer wall of the top plate 23. The outer wall of the base plate 20 is connected to the bottom main pipe 3. The outer wall of the 4 is fixedly connected, the inner wall of the side plate 21 and the inner wall of the copper plate 22 are slidably connected to the outer wall of the top branch pipe 32, the inner wall of the side plate 21 and the inner wall of the copper plate 22 are fixedly connected to the outer wall of the bottom branch pipe 33, and the outer wall of the top plate 23 is fixedly connected to the outer wall of the top main pipe 31. Through the setting of the ventilation slot 24 and the side plate 21, when the disc motor body 1 is running at high speed, the exchange of air inside the protective structure 2 with the outside air can be promoted. Through the air flow, the heat dissipation of the disc motor body 1 can be accelerated.
[0032] The connecting structure 25 includes a bottom connecting block 250, a telescopic rod 251 fixedly connected to the outer wall of the bottom connecting block 250, a spring 252 sleeved on the outside of the telescopic rod 251, a limit block 253 fixedly connected to the output end of the telescopic rod 251, the outer wall of the top of the bottom connecting block 250 slidably connected to the outer wall of the bottom of the top connecting block 254, the outer wall of the bottom connecting block 250 fixedly connected to the outer wall of the base plate 20, the outer wall of the top connecting block 254 fixedly connected to the outer wall of the top plate 23, one end of the spring 252 fixedly connected to the outer wall of the bottom connecting block 250, and the other end of the spring 252 fixedly connected to the outer wall of the limit block 253. The outer wall of the limit block 253 slidably connected to the inner wall of the top connecting block 254. By pressing down the limit block 253, the limit block 253 on the top connecting block 254 is released, and the protective structure 2 and the heat dissipation structure 3 can be separated into two parts, which provides convenience for the replacement and maintenance of the disc motor body 1 inside the protective structure 2.
[0033] Working principle
[0034] In use, when the disc motor body 1 rotates, the protective structure 2 will not rotate with it. When the disc motor body 1 heats up, the heat will be transferred to the protective structure 2. At this time, coolant is introduced into the heat dissipation structure 3, and the coolant will absorb the heat on the protective structure 2, thereby achieving heat dissipation of the disc motor body 1. The rotation of the disc motor body 1 will drive air circulation, accelerate the air flow inside and outside the protective structure 2, promote air circulation, and further accelerate the heat dissipation of the disc motor body 1.
[0035] When the disc motor body 1 rotates, it accelerates the airflow inside the protective structure 2, allowing air to enter the protective structure 2 through the ventilation slots 24 on the bottom plate 20 and top plate 23. Simultaneously, the slotted design of the side plate 21 also promotes airflow inside the protective structure 2. By accelerating airflow, heat is dissipated from the disc motor body 1. When the disc motor body 1 heats up, it transfers heat to the bottom plate 20 and top plate 23, and then through the bottom plate 20 and top plate 23 to the side plate 21 and copper plate 22. The copper plate 22 has excellent heat absorption properties, and its protruding portion increases the contact area with air, allowing for more efficient heat transfer to the air. Coolant is then introduced into the inlet pipe 30, flowing through the inlet pipe 30 into the top main pipe 31 and top branch pipe 32, and subsequently flowing... The coolant flows into the bottom branch pipe 33 and the bottom main pipe 34, and finally flows out from the outlet pipe 35. Since the connection between the bottom branch pipe 33 and the top branch pipe 32 is fixedly connected with a leak-proof ring, it is difficult for the coolant to leak at the connection between the bottom branch pipe 33 and the top branch pipe 32. During the flow of the coolant, it will absorb the heat on the protective structure 2 and promote the heat exchange on the protective structure 2. Since the outer walls of the top branch pipe 32 and the bottom branch pipe 33 are slidably connected to the inner wall of the copper plate 22, the copper plate 22 can transfer heat faster, which can further accelerate the absorption of heat from the protective structure 2 by the coolant and promote the heat dissipation of the disc motor body 1.
[0036] When the disc motor body 1 needs to be replaced or repaired due to damage, the protective structure 2 and the heat dissipation structure 3 can be separated through the connecting structure 25. Press the limit block 253 to compress the spring 252 and the telescopic rod 251, and release the limit block 253 from the top connecting block 254. Then the top plate 23 can be lifted. At this time, the top plate 23 will separate from the bottom connecting block 250 along with the top connecting block 254, so that the top branch pipe 32 and the bottom branch pipe 33 are separated, and the protective structure 2 and the heat dissipation structure 3 are separated into two parts. Then the disc motor body 1 can be replaced or repaired.
[0037] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] 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 cooling device for a disc-type motor in a new energy vehicle, comprising: The disc motor body (1) is characterized in that a protective structure (2) is slidably connected to the outside of the disc motor body (1), and a heat dissipation structure (3) is fixedly connected to the inner wall of the protective structure (2). The heat dissipation structure (3) includes an inlet pipe (30), the bottom end of which is fixedly connected to a top main pipe (31), the outer wall of which is fixedly connected to a top branch pipe (32), the inner wall of which is slidably connected to a bottom branch pipe (33), the outer wall of which is fixedly connected to a bottom main pipe (34), and the outer wall of which is fixedly connected to an outlet pipe (35).
2. The cooling device for a disc motor in a new energy vehicle according to claim 1, characterized in that: The protective structure (2) includes a base plate (20), a side plate (21) is fixedly connected to the outer wall of the top of the base plate (20), a copper plate (22) is fixedly connected to the inner wall of the side plate (21), the outer wall of the side plate (21) is slidably connected to the top plate (23), ventilation grooves (24) are provided on the outer walls of both the base plate (20) and the top plate (23), and connecting structures (25) are symmetrically fixedly connected to the outer wall of the base plate (20).
3. The cooling device for a disc motor in a new energy vehicle according to claim 2, characterized in that: The outer wall of the bottom of the copper plate (22) is fixedly connected to the outer wall of the bottom plate (20), and the outer wall of the top of the copper plate (22) is slidably connected to the outer wall of the top plate (23).
4. A cooling device for a disc-type motor in a new energy vehicle according to claim 2, characterized in that: The outer wall of the base plate (20) is fixedly connected to the outer wall of the bottom main pipe (34), the inner wall of the side plate (21) and the inner wall of the copper plate (22) are slidably connected to the outer wall of the top branch pipe (32), the inner wall of the side plate (21) and the inner wall of the copper plate (22) are fixedly connected to the outer wall of the bottom branch pipe (33), and the outer wall of the top plate (23) is fixedly connected to the outer wall of the top main pipe (31).
5. A cooling device for a disc-type motor in a new energy vehicle according to claim 2, characterized in that: The connecting structure (25) includes a bottom connecting block (250), a telescopic rod (251) is fixedly connected to the outer wall of the bottom connecting block (250), a spring (252) is sleeved on the outside of the telescopic rod (251), a limit block (253) is fixedly connected to the output end of the telescopic rod (251), and the outer wall of the top of the bottom connecting block (250) is slidably connected to the outer wall of the bottom of the top connecting block (254).
6. A cooling device for a disc-type motor in a new energy vehicle according to claim 5, characterized in that: The outer wall of the bottom connecting block (250) is fixedly connected to the outer wall of the base plate (20), the outer wall of the top connecting block (254) is fixedly connected to the outer wall of the top plate (23), one end of the spring (252) is fixedly connected to the outer wall of the bottom connecting block (250), the other end of the spring (252) is fixedly connected to the outer wall of the limiting block (253), and the outer wall of the limiting block (253) is slidably connected to the inner wall of the top connecting block (254).