Motor
By installing a cooling device between the motor housing and the stator and setting a spray structure, the problem that traditional motor cooling methods cannot accurately cool the stator is solved, and the cooling efficiency and structural compactness of the motor are improved, and suitable for high loads and long-term operation.
Patent Information
- Application Number
- CN202422687035.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-05
AI Technical Summary
The traditional motor cooling method is low efficiency and difficult to cover all heating parts, especially the motor stator part, and cannot be accurately cooled, which affects the heat dissipation effect of the motor under high load and long-term operation.
A cooling device is installed between the motor housing and the stator to form a closed space, and a spray structure is provided on the cooling device so that the coolant can be accurately sprayed to the motor stator, ensuring that the coolant acts directly on the stator part.
It significantly improves the cooling efficiency of the motor, meets the heat dissipation requirements under high load and long-term operation, and optimizes the internal structure of the motor to make it more compact and suitable for miniaturized applications.
Smart Images
Figure CN223246427U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electronic control components, and in particular to a motor. Background Art
[0002] In high-power motors, the significant heat generated during operation can affect their stability and lifespan. Traditional motor cooling methods are inefficient, struggle to cover all heat-generating areas, and are unable to precisely cool critical internal motor components, such as the stator.
[0003] Therefore, how to improve cooling efficiency and ensure that the coolant can accurately act on the stator part of the motor, so as to meet the heat dissipation requirements of the motor under high load and long-term operation, is an urgent problem that needs to be solved.
[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content
[0005] Based on this, the present application provides a motor that can ensure that the coolant can accurately act on the motor stator and accurately cool the motor stator, thereby significantly improving the cooling efficiency and meeting the heat dissipation requirements under high load and long-term operation.
[0006] The motor provided in this application includes: a motor housing, a motor stator and a cooling device;
[0007] The motor stator is installed in the motor housing;
[0008] The cooling device is installed between the motor housing and the motor stator; the side of the cooling device facing the motor housing and the motor housing together form a closed space, and the side of the cooling device facing the motor stator is provided with a spray structure, and the spray structure is connected to the closed space.
[0009] In some embodiments, the spray structure protrudes toward one side of the motor stator, and the protruding end of the spray structure partially extends into the interior of the motor stator.
[0010] In some embodiments, the motor stator includes a plurality of stator coil windings, and the plurality of stator coil windings are spaced apart along the circumferential direction;
[0011] Wherein, the protruding end of the spray structure extends into the gap between at least one group of two adjacent stator coil windings.
[0012] In some embodiments, a side surface of the cooling device facing the motor housing is concave, and together with the surface of the motor housing, forms the closed space.
[0013] In some embodiments, the cooling device is made of plastic.
[0014] In some embodiments, the cooling device is provided with a plurality of the spray structures, and the plurality of the spray structures include at least a first-caliber spray structure and a second-caliber spray structure.
[0015] In some embodiments, the motor housing is provided with fixing holes;
[0016] The cooling device is provided with a mounting hole and a fastener matching the mounting hole;
[0017] Wherein, as the fastener passes through the installation hole of the cooling device, the first end of the fastener extends into the fixing hole of the motor housing to fix the cooling device on the motor housing.
[0018] In some embodiments, the fastener comprises a bolt.
[0019] In some embodiments, when the cooling device is fixed to the motor housing, an insulating structure is used to cover the second end of the fastener.
[0020] In some embodiments, the cooling device is provided with a plurality of the mounting holes, and the plurality of the mounting holes are spaced apart and evenly distributed along the circumference of the cooling device.
[0021] The motor provided in this application may have / at least have the following advantages:
[0022] In an embodiment of the present application, a cooling device is installed between the motor housing and the motor stator, capable of directly cooling a key part of the motor, namely the motor stator, thereby effectively reducing heat accumulation within the motor. The side of the cooling device facing the motor housing forms a closed space with the motor housing, and this closed space is connected to the spray structure. In this way, coolant can enter the closed space from the motor housing and then be sprayed onto the motor stator through the spray structure, ensuring that the coolant can accurately act on the motor stator, thereby accurately cooling the motor stator, significantly improving cooling efficiency, and meeting the heat dissipation requirements of the motor under high load and long-term operation.
[0023] In addition, arranging the cooling device between the motor housing and the motor stator also reduces the space occupied by the motor interior, optimizes the overall layout of the motor interior, makes the internal structure of the motor more compact, and is suitable for application scenarios with miniaturized volume.
[0024] Other advantages, objectives, and features of the present application will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following, or may be taught from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.
[0026] Figure 1 is a schematic side view of the structure of a motor provided by some embodiments of the present application, with the motor housing hidden;
[0027] Figure 2 is a schematic diagram of the three-dimensional structure of a motor stator in a motor provided in some embodiments of the present application;
[0028] Figure 3 is a schematic diagram of the three-dimensional structure of a cooling device in a motor provided in some embodiments of the present application;
[0029] Figure 4 is a schematic diagram of the three-dimensional structure of a cooling device in a motor provided in other embodiments of the present application;
[0030] Figure 5 is a rear structural schematic diagram of a cooling device in a motor provided in some embodiments of the present application;
[0031] Figure 6 This is a partial cross-sectional view of a motor provided in some embodiments of the present application.
[0032] Reference numerals:
[0033] 110. Motor stator; 110a. Stator coil winding; 120. Cooling device; 120a. Mounting hole; 120b. Fastener; 120c. Insulation structure; 121. Spray structure; 121a. Protruding end. DETAILED DESCRIPTION
[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this disclosure thorough and complete and to fully convey the concepts of the example embodiments to those skilled in the art.
[0035] The accompanying drawings are merely schematic illustrations of the present invention and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the blocks shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.
[0036] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that when the terms "comprising" and / or "including" are used in this specification, they may specify the presence of the stated features, integers, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, elements, components, and / or groups. At the same time, when used herein, the term "and / or" includes any and all combinations of the relevant listed items.
[0037] In the description of the present invention, the term "plurality" means two or more, unless otherwise specifically defined. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.
[0038] In high-power motors, the significant heat generated during operation can affect their stability and lifespan. Traditional motor cooling methods are inefficient, struggle to cover all heat-generating areas, and are unable to precisely cool critical internal motor components, such as the stator.
[0039] In view of the above shortcomings, this application provides a motor that ensures that the coolant can accurately act on the motor stator and accurately cool the motor stator, thereby significantly improving the cooling efficiency and meeting the heat dissipation requirements under high load and long-term operation. The details will be explained in subsequent embodiments.
[0040] See also Figure 1 The motor provided in the embodiment of the present application may specifically include a motor housing ( Figure 1 ), the motor stator 110 and the cooling device 120.
[0041] The motor stator 110 is, for example, Figure 2 As shown, it is installed in the motor housing. Figures 3 to 5 As shown, it is installed between the motor housing and the motor stator 110.
[0042] The side of the cooling device 120 facing the motor housing (which can be understood as the front of the cooling device 120) can form a closed space together with the motor housing, and the side of the cooling device 120 facing the motor stator 110 (which can be understood as the back of the cooling device 120) is provided with a spray structure 121, and the spray structure 121 is connected to the closed space.
[0043] In the motor provided in this application, the cooling device 120 is installed between the motor housing and the motor stator 110, and can directly cool the key parts inside the motor, namely the motor stator 110, thereby effectively reducing the heat accumulation inside the motor. The side of the cooling device 120 facing the motor housing and the motor housing together form a closed space, and the closed space is connected to the spray structure 121. In this way, the coolant can enter the closed space from the motor housing and then be sprayed to the motor stator 110 through the spray structure 121, ensuring that the coolant can accurately act on the motor stator 110, thereby accurately cooling the motor stator 110, significantly improving the cooling efficiency, and meeting the heat dissipation requirements of the motor under high load and long-term operation.
[0044] Furthermore, arranging the cooling device 120 between the motor housing and the motor stator 110 also reduces the space occupied by the motor interior, optimizes the overall layout of the motor interior, and makes the motor interior structure more compact, making it suitable for miniaturized application scenarios.
[0045] See also Figure 6 In some embodiments, the spray structure 121 protrudes toward one side of the motor stator 110 to form a nozzle, for example Figure 6 It should be noted that the protruding end 121 a of the spray structure 121 partially extends into the interior of the motor stator 110 .
[0046] In the above embodiment, the spray structure 121 protrudes toward one side of the motor stator 110 and partially extends into the interior of the stator, so that the coolant can act on the motor stator 110 more accurately, which helps to more accurately control the coolant spray position, thereby further improving the motor cooling effect, while also avoiding coolant scattering and further optimizing the cooling efficiency.
[0047] In some embodiments, the motor stator 110 may include a plurality of stator coil windings 110a spaced apart along a circumferential direction, thereby collectively forming a circular motor. The protruding end 121a of the spray structure 121 extends into the gap between at least two adjacent stator coil windings 110a.
[0048] In the above embodiment, the coolant can directly act on the space between adjacent stator coil windings 110a, taking away the heat around the stator coil windings 110a, thereby reducing the risk of heat accumulation between the stator coil windings 110a, thereby improving the overall cooling effect and service life of the motor.
[0049] In the above embodiment, the shape of the cooling device 120 matches the shape of the round wire motor. For example, the cooling device 120 can be designed as an oil injection ring.
[0050] Please continue reading Figure 3 and Figure 4 In some embodiments, the cooling device 120 includes a plurality of spray structures 121. For example, the plurality of spray structures 121 may be evenly spaced apart along the circumference of the cooling device 120.
[0051] For example, the plurality of spray structures 121 may include a first-caliber spray structure and a second-caliber spray structure. That is, the cooling device 120 may be provided with a plurality of spray structures 121 of different calibers.
[0052] For example, Figure 3 In the cooling device 120 shown, the spray structure 121 located at the top may have a larger diameter; in contrast, the spray structure 121 located at the bottom has a smaller diameter.
[0053] In some embodiments, the top spray structure 121 has the largest diameter, and the bottom spray structure 121 has the smallest diameter. For example, the diameter of the bottom spray structure 121 may be less than or equal to 30% of the largest diameter of the top spray structure 121.
[0054] Regarding the cooling device 120, the embodiment of the present application does not specifically limit the implementation method of the cooling device 120 and the motor housing together forming a closed space. In some embodiments, the side surface of the cooling device 120 facing the motor housing is concave, thereby forming a closed space together with the motor housing surface.
[0055] In the above embodiment, one side surface of the cooling device 120 is designed as a concave structure, thereby forming a closed space together with the surface of the motor housing, so that the coolant can flow in the closed space and be guided to the spray structure 121. The cooling device 120 has a simple structure and is easy to implement, has a good sealing effect, and is convenient for subsequent installation and maintenance.
[0056] The embodiment of the present application does not specifically limit the material of the cooling device 120. In some embodiments, the material of the cooling device 120 may include plastic, but is not limited thereto.
[0057] Please continue reading Figure 3 and Figure 4 In some embodiments, the cooling device 120 may be provided with a mounting hole 120a and a fastener 120b matching the mounting hole 120a. Correspondingly, the motor housing may be provided with a fixing hole matching the mounting hole 120a and the fastener 120b.
[0058] In the above motor, as the fastener 120b passes through the installation hole 120a of the cooling device 120, the first end of the fastener 120b extends into the fixing hole of the motor housing, thereby fixing the cooling device 120 to the motor housing.
[0059] like Figure 3 and Figure 4 As shown, the number of the mounting holes 120 a provided on the cooling device 120 can be multiple, and the multiple mounting holes 120 a can be spaced apart and evenly distributed along the circumference of the cooling device 120 .
[0060] For example, Figure 3 and Figure 4 In the motor shown, four fasteners 120b pass through the four mounting holes 120a of the cooling device 120, so that the first ends of the four fasteners 120b extend into the corresponding fixing holes on the motor housing, thereby fixing the cooling device 120 to the motor housing.
[0061] As an example, the fastener 120b may include a bolt.
[0062] Please continue reading Figure 4 In some embodiments, when the cooling device 120 is fixed to the motor housing, the second end of the fastener 120b can be covered by the insulating structure 120c.
[0063] For example, after the bolt is tightened, an insulating structure 120c such as an insulating cap or insulating glue may be used to cover the bolt to ensure insulation of the fastener 120b and prevent the fastener 120b from creeping.
[0064] In some embodiments, the motor may also be provided with multiple sealing rings (O-rings). The multiple sealing rings may be located on the motor housing and disposed one-to-one with the bottom of the spray structure 121; or they may be disposed on the cooling device 120 and disposed one-to-one with the openings of the spray structure 121.
[0065] For example, the sealing ring can be formed by vulcanizing plastic.
[0066] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features of the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0067] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.
Claims
1. A motor, characterized in that: include: Motor housing, motor stator and cooling device; The motor stator is installed in the motor housing; The cooling device is installed between the motor housing and the motor stator; the side of the cooling device facing the motor housing and the motor housing together form a closed space, and the side of the cooling device facing the motor stator is provided with a spray structure, and the spray structure is connected to the closed space.
2. The motor according to claim 1, characterized in that The spray structure protrudes toward one side of the motor stator, and the protruding end of the spray structure partially extends into the interior of the motor stator.
3. The motor according to claim 2, characterized in that The motor stator comprises a plurality of stator coil windings, and the plurality of stator coil windings are arranged at intervals along the circumferential direction; Wherein, the protruding end of the spray structure extends into the gap between at least one group of two adjacent stator coil windings.
4. The motor according to claim 1, characterized in that The cooling device has a concave surface on one side facing the motor housing, and together with the surface of the motor housing, forms the closed space.
5. The motor according to claim 1, characterized in that The cooling device is made of plastic.
6. The motor according to claim 1, characterized in that The cooling device is provided with a plurality of the spray structures, and the plurality of the spray structures at least include a first-caliber spray structure and a second-caliber spray structure.
7. The motor according to claim 1, characterized in that The motor housing is provided with fixing holes; The cooling device is provided with a mounting hole and a fastener matching the mounting hole; Wherein, as the fastener passes through the installation hole of the cooling device, the first end of the fastener extends into the fixing hole of the motor housing to fix the cooling device on the motor housing.
8. The motor according to claim 7, characterized in that The fastener includes a bolt.
9. The motor according to claim 7, characterized in that When the cooling device is fixed to the motor housing, the second end of the fastener is covered by an insulating structure.
10. The motor according to claim 7, characterized in that The cooling device is provided with a plurality of the mounting holes, and the plurality of the mounting holes are spaced and evenly distributed along the circumference of the cooling device.