CN216904598U - Motor structure, motor and cleaning equipment - Google Patents
Motor structure, motor and cleaning equipment Download PDFInfo
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- CN216904598U CN216904598U CN202123409035.5U CN202123409035U CN216904598U CN 216904598 U CN216904598 U CN 216904598U CN 202123409035 U CN202123409035 U CN 202123409035U CN 216904598 U CN216904598 U CN 216904598U
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Abstract
The utility model discloses a motor structure, a motor and cleaning equipment, wherein the motor structure comprises a shell, and a stator assembly and a rotor assembly which are arranged in the shell, the stator assembly is sleeved on the rotor assembly, a heat dissipation space is formed between one end of the stator assembly and the inner wall of the shell, and a heat conducting piece is arranged in the heat dissipation space. The motor structure solves the problem that the motor cannot work normally or even fails due to overhigh temperature rise of the motor caused by the fact that heat generated by the stator winding cannot be dissipated timely.
Description
Technical Field
The present invention relates to a motor technology field, and more particularly, to a motor structure, a motor and a cleaning apparatus.
Background
At present, most of dry and wet dual-purpose motors on the market need to be subjected to waterproof treatment, and stator windings need to be sealed in a waterproof shell, so that heat of the stator windings is difficult to dissipate, the motors cannot work normally and stably after a long time, and even the motors can be burnt.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a motor structure, which solves the problem that the motor cannot work normally or even fails due to overhigh temperature rise of the motor caused by the fact that heat generated by a stator winding cannot be dissipated timely.
In order to achieve the above object, the present invention provides a motor structure, which includes a housing, and a stator assembly and a rotor assembly disposed in the housing, wherein the stator assembly is sleeved on the rotor assembly, a heat dissipation space is formed between one end of the stator assembly and an inner wall of the housing, and a heat conducting member is disposed in the heat dissipation space.
In one or more embodiments, the stator assembly includes an insulation frame and a stator winding, the insulation frame is disposed in the casing, a hollow portion of the middle of the insulation frame is disposed to form an operation space of the rotor assembly, and the stator winding is wound on the insulation frame and partially disposed in the heat dissipation space.
In one or more embodiments, the insulating framework includes an outer wall and an inner wall which are annularly surrounded, and a plurality of winding portions which are connected and arranged between the outer wall and the inner wall and used for winding the stator winding, and the inner wall encloses a running space which forms the rotor assembly.
In one or more embodiments, the rotor assembly includes a rotor and a bearing, the bearing is sleeved on the rotor, a first extending portion is convexly arranged on an end face of an inner wall of the housing, the first extending portion surrounds to form an accommodating cavity, and the bearing is arranged in the accommodating cavity.
In one or more embodiments, a second extending portion is convexly arranged on the first extending portion in a direction away from the end face of the inner wall, and the second extending portion is matched with the inner wall of the insulating framework to separate a heat dissipation space where the stator winding is located from an operation space where the rotor assembly is located.
In one or more embodiments, at least a portion of the second extension extends into the insulating skeleton, and the extension is not in contact with the insulating skeleton.
In one or more embodiments, the second extension is configured as an annular structure, an outer diameter of the second extension is smaller than an inner diameter of the insulating skeleton, and the second extension is disposed inside the insulating skeleton.
In one or more embodiments, the second extension is configured as an annular structure, and an inner diameter of the second extension is equal to an inner diameter of the insulating skeleton.
In one or more embodiments, the second extension is configured as a ring-shaped structure, the inner diameter of the second extension is larger than the inner diameter of the insulating skeleton, and the inner wall of the insulating skeleton is embedded in the second extension.
In one or more embodiments, the heat conducting member includes a heat conducting paste, and the heat conducting paste has a contact portion with the rotor assembly and the housing.
In one or more embodiments, the inner wall has a height higher than the outer wall and the stator winding wound on the winding part.
In one or more embodiments, the housing is made of a metal material.
In one or more embodiments, a plurality of heat dissipating ribs are disposed on an outer surface of the housing.
In one or more embodiments, the heat dissipation rib is annularly distributed at one end of the housing where the heat conducting member is disposed, and is integrally formed with the housing.
The utility model also provides a motor which comprises the motor structure.
The utility model also provides cleaning equipment comprising the motor.
Compared with the prior art, the motor structure has the advantages that the heat conducting piece is arranged in the space where the stator assembly is located, and heat generated by the stator assembly is conducted to the shell through the heat conducting piece to dissipate heat, so that the problem of motor failure caused by the fact that the temperature of a stator winding of the motor cannot be dissipated is solved.
According to the motor structure, the annular second extension part is arranged and matched with the insulating framework, so that the heat dissipation space is isolated from the operation space, and heat-conducting glue (a heat-conducting part is formed after the heat-conducting glue is dried) injected into the heat dissipation space is prevented from entering the operation space to influence the operation of the rotor assembly.
According to the motor structure, the heat dissipation ribs are arranged, so that the heat dissipation capacity of the shell is further improved.
Drawings
Fig. 1 is a perspective view of a motor structure according to an embodiment of the present invention.
Fig. 2 is an axial sectional view of a motor structure according to an embodiment of the present invention.
Fig. 3 is an enlarged detail view of the portion C in fig. 2.
Fig. 4 is a view showing the internal structure of the housing of the motor structure according to the embodiment of the present invention.
Fig. 5 is a radial cross-sectional view of a motor structure according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a motor structure (a part of components are omitted) according to an embodiment of the present invention.
Fig. 7 is a perspective view of an insulating bobbin in the motor structure according to the embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As background art says, most dry and wet dual-purpose motors on the market at present need waterproof treatment, and the stator winding needs to be sealed in waterproof casing, and this design often can produce the very high problem of the inside temperature rise of motor, and then leads to motor stall even motor inefficacy.
In order to solve the technical problem, the motor structure provided by the utility model innovatively provides that the heat conducting piece is arranged in the heat radiating space where the stator winding is located on the premise of meeting the waterproof requirement of the motor, the heat generated by the operation of the stator winding is conducted to the motor shell through the heat conducting piece to be radiated, the heat radiation performance of the motor is improved, and the problem that the motor fails due to the fact that the temperature rise of the motor is too high because the heat generated by the stator winding cannot be timely radiated is solved.
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
Example 1:
as shown in fig. 1 to 6, an embodiment of the present invention provides a motor structure including a housing 10, a stator assembly 20, and a rotor assembly 30. The stator assembly 20 is disposed in the housing 10, and the rotor assembly 30 is disposed through the stator assembly 20 and partially protrudes from the housing 10.
The case 10 is made of a metal material having good thermal conductivity. The housing 10 is provided with an accommodating space therein. The outer surface of the casing 10 is formed with heat dissipation ribs 11, and the heat dissipation ribs 11 are uniformly arranged on the surface of the casing 10 in an annular shape and are integrally formed with the casing 10. The heat dissipating ribs 11 are also made of a metal material having good thermal conductivity.
The stator assembly 20 is disposed in the accommodating space of the housing 10. A heat dissipation space a is formed between one end of the stator assembly 20 and the inner wall and the top wall of the casing 10, and a heat conducting member is disposed in the heat dissipation space a. The heat conducting member includes a heat conducting paste, and the heat conducting paste has a contact portion with the rotor assembly 30 and the housing 10. After the heat-conducting glue is filled into the heat dissipation space A, the heat-conducting glue needs to be heated and dried so as to lose fluidity, and a heat-conducting piece is formed. The heat dissipating ribs 11 are preferably distributed at one end of the housing 10 where the heat conductive member is disposed. The stator assembly 20 includes an insulating bobbin 21 and a stator winding 22.
As shown in fig. 2, 4, 6 and 7, the insulating bobbin 21 is fixedly disposed on the inner sidewall of the housing 10, and the insulating bobbin 21 includes an outer wall 211 and an inner wall 212 annularly surrounded, and a plurality of winding portions 213 connected between the outer wall 211 and the inner wall 212 for winding the stator winding 22. The inner wall 212 of the insulating frame 21 encloses a running space B for the rotor assembly 30 to run. The inner wall 212 of the insulating bobbin 21, the winding portion 213, and the top and side walls of the case 10 together form a heat dissipation space a.
The stator winding 22 is wound on the winding portion 213 of the insulating bobbin 21 and partially located in the heat dissipation space a. The heat generated by the operation of the stator winding 22 can be conducted to the housing 10 through the heat conducting member in the heat dissipating space a, and then dissipated to the external environment by the housing 10.
As shown in fig. 3 and 4, a first extension 121 is convexly disposed on an end surface of the top wall of the housing 10, and the first extension 121 surrounds to form a receiving cavity D for carrying a part of the structure in the rotor assembly 30. The first extension portion 121 is provided with a second extension portion 122 protruding toward the direction away from the inner wall end surface, at least a portion of the second extension portion 122 extends into the insulating frame 21, and the extension portion is not in contact with the insulating frame 21. The second extension portion 122 is matched with the inner wall 212 of the insulating framework 21 to isolate the heat dissipation space a where the stator winding 22 is located from the operation space B where the rotor assembly 30 is located.
In a specific embodiment, the second extension portion 122 is configured as an annular structure, an outer diameter of the annular second extension portion 122 is smaller than an inner diameter of the insulating frame 21, and the annular second extension portion 122 is disposed inside the insulating frame 21 with a gap from the inner wall 212 of the insulating frame 21. The height of the inner wall 212 of the insulating bobbin 21 is higher than the height of the outer wall 211 and the stator winding 22 wound on the winding part 213.
The rotor assembly 30 is rotatably disposed in the accommodating space of the housing 10. The rotor assembly 30 includes a bearing 31 and a rotor, the bearing 31 is sleeved on the rotor, and one end of the rotor is protruded from the housing 10. The bearing 31 is disposed in the receiving chamber D formed by being surrounded by the first extension 121.
Further, in order to provide a better heat dissipation effect to the housing 10, active heat dissipation may be provided to the housing 10 through an external heat dissipation member. The heat sink may be provided according to actual requirements, and may be a fan, a water-cooled heat sink, or the like. The fan may also be connected to the rotor assembly 30 of the motor structure so that the rotor assembly 30 may drive the fan to rotate to generate wind to dissipate heat of the housing 10.
In an embodiment, the air outlet of the fan may be disposed toward the heat dissipating ribs 11 to improve the heat dissipating efficiency.
Example 2:
the present embodiment is different from embodiment 1 only in that, in the present embodiment, the inner diameter of the annular second extending portion 122 is equal to the inner diameter of the insulating skeleton 21, and the annular second extending portion 122 is disposed opposite to the inner wall 212 of the insulating skeleton 21. The annular second extension portion 122 also cooperates with the inner wall 212 of the insulating frame 21 to isolate the heat dissipation space a from the operating space B.
Example 3:
the present embodiment is different from embodiment 1 only in that, in the present embodiment, the inner diameter of the annular second extending portion 122 is larger than the inner diameter of the insulating skeleton 21, and the inner wall 212 of the insulating skeleton 21 is embedded in the annular second extending portion 122. The annular second extension portion 122 is engaged with the inner wall 212 of the insulating frame 21 to isolate the heat dissipation space a from the operation space B.
The utility model also provides a motor which comprises the motor structure.
The utility model also provides cleaning equipment comprising the motor.
Compared with the prior art, the motor structure has the advantages that the heat conducting piece is arranged in the space where the stator assembly is located, and heat generated by the stator assembly is conducted to the shell through the heat conducting piece to dissipate heat, so that the problem of motor failure caused by the fact that the temperature of a stator winding of the motor cannot be dissipated is solved.
According to the motor structure, the annular second extension part is arranged and matched with the insulating framework, so that the heat dissipation space is isolated from the operation space, and heat-conducting glue (a heat-conducting part is formed after the heat-conducting glue is dried) injected into the heat dissipation space is prevented from entering the operation space to influence the operation of the rotor assembly.
According to the motor structure, the heat dissipation ribs are arranged, so that the heat dissipation capacity of the shell is further improved.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (10)
1. A motor structure is characterized by comprising a shell, a stator assembly and a rotor assembly, wherein the stator assembly and the rotor assembly are arranged in the shell, the stator assembly is sleeved on the rotor assembly, a heat dissipation space is formed between one end of the stator assembly and the inner wall of the shell, and a heat conducting piece is arranged in the heat dissipation space.
2. The motor structure of claim 1, wherein the stator assembly comprises an insulating framework and a stator winding, the insulating framework is disposed in the housing, the insulating framework is hollow in the middle to form an operation space of the rotor assembly, and the stator winding is wound on the insulating framework and is partially disposed in the heat dissipation space.
3. The motor structure of claim 2, wherein the rotor assembly comprises a rotor and a bearing, the bearing is sleeved on the rotor, a first extending portion is convexly arranged on an end surface of an inner wall of the housing, the first extending portion surrounds a containing cavity, and the bearing is arranged in the containing cavity.
4. The motor structure of claim 3, wherein the first extension portion is provided with a second extension portion protruding in a direction away from the end surface of the inner wall, and the second extension portion is matched with the inner wall of the insulating framework to separate a heat dissipation space where the stator winding is located from an operation space where the rotor assembly is located.
5. The electric machine structure of claim 4, wherein at least a portion of the second extension extends into the insulating skeleton without contacting the insulating skeleton.
6. The motor structure according to any one of claims 1 to 3, wherein the heat conductive member includes a heat conductive paste, and the heat conductive paste has a contact portion with the rotor assembly and the housing.
7. A motor structure as claimed in any one of claims 1 to 3, characterised in that a plurality of heat dissipating ribs are provided on the outer surface of the housing.
8. The motor structure of claim 7, wherein the heat dissipating ribs are annularly distributed at an end of the housing where the heat conductive member is disposed, and are integrally formed with the housing.
9. An electrical machine comprising a machine structure according to any one of claims 1 to 8.
10. A cleaning device comprising a motor as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123409035.5U CN216904598U (en) | 2021-12-30 | 2021-12-30 | Motor structure, motor and cleaning equipment |
| PCT/CN2022/135387 WO2023124716A1 (en) | 2021-12-30 | 2022-11-30 | Motor structure, motor and cleaning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123409035.5U CN216904598U (en) | 2021-12-30 | 2021-12-30 | Motor structure, motor and cleaning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216904598U true CN216904598U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123409035.5U Active CN216904598U (en) | 2021-12-30 | 2021-12-30 | Motor structure, motor and cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216904598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124716A1 (en) * | 2021-12-30 | 2023-07-06 | 追觅创新科技(苏州)有限公司 | Motor structure, motor and cleaning apparatus |
| CN116599268A (en) * | 2023-04-07 | 2023-08-15 | 苏州凯航电机有限公司 | DC, dry and wet fan and floor-washing machine motor |
-
2021
- 2021-12-30 CN CN202123409035.5U patent/CN216904598U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124716A1 (en) * | 2021-12-30 | 2023-07-06 | 追觅创新科技(苏州)有限公司 | Motor structure, motor and cleaning apparatus |
| CN116599268A (en) * | 2023-04-07 | 2023-08-15 | 苏州凯航电机有限公司 | DC, dry and wet fan and floor-washing machine motor |
| CN116599268B (en) * | 2023-04-07 | 2024-03-19 | 苏州凯航电机有限公司 | DC, dry-wet dual-purpose fan motor |
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