Motor

Abstract

The utility model provides a motor, comprising a housing structure on which a plurality of heat dissipation holes are distributed; the rotor assembly comprises a rotating shaft, a rotor iron core and a rotor winding, the rotating shaft is rotationally arranged on the shell structure, the rotor iron core is arranged on the rotating shaft and located in the shell structure, and the rotor winding is arranged on the rotor iron core; and the two heat dissipation fan blades are located in the shell structure, rotate along with the rotating shaft and are located on the two sides of the rotor iron core respectively. According to the scheme, the two sides of the rotor core are respectively provided with one heat dissipation fan blade, so that the two heat dissipation fan blades are driven to rotate when the rotating shaft rotates, air flow on the two sides of the rotor core is accelerated, the heat dissipation effect is improved, air exchange between the interior and the exterior of the motor can be enhanced through the multiple heat dissipation holes in the shell structure, and the service life of the motor is prolonged. And the heat dissipation effect of the motor is further improved. The scheme can be applied to a capacitor operation asynchronous motor and other types of motors.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and more specifically, to a motor. Background Art

[0002] A capacitor-run asynchronous motor is a single-phase two-wire AC asynchronous motor. When the rotational speed of the motor rotor is lower than that of the rotating magnetic field, there is relative motion between the rotor winding and the magnetic field, generating electromotive force and current, which interact with the magnetic field to generate electromagnetic torque, converting electrical energy into mechanical energy, heat energy, etc.

[0003] Motors such as capacitor-run asynchronous motors mainly consist of a stator winding, a rotating shaft, a rotor winding, etc. The heat dissipation efficiency of the motor has a great impact on the performance and safety of the motor. Existing motors usually have a fan blade at one end, and the rotation of the fan blade speeds up the air flow for heat dissipation. However, existing motors still have the problem of poor heat dissipation effect, and it is necessary to optimize them. Summary of the Utility Model

[0004] The utility model provides a motor to solve the problem of poor heat dissipation effect of motors in the prior art.

[0005] To solve the above problems, the utility model provides a motor, including: a housing structure with a plurality of heat dissipation holes distributed thereon; a rotor assembly including a rotating shaft, a rotor core, and a rotor winding, the rotating shaft is rotatably arranged on the housing structure, the rotor core is arranged on the rotating shaft and located inside the housing structure, and the rotor winding is arranged on the rotor core; two heat dissipation fan blades located inside the housing structure, the two heat dissipation fan blades rotate with the rotating shaft, and the two heat dissipation fan blades are respectively located on both sides of the rotor core.

[0006] Further, the rotor assembly further includes two rotor aluminum rings respectively arranged on both sides of the rotor core; wherein, the two heat dissipation fan blades are respectively installed on the two rotor aluminum rings, or the two heat dissipation fan blades are both installed on the rotating shaft.

[0007] Further, each heat dissipation fan blade is in interference fit with a corresponding rotor aluminum ring, or the two heat dissipation fan blades are both in interference fit with the rotating shaft.

[0008] Further, the heat dissipation fan blade is an axial flow fan blade.

[0009] Further, the plurality of heat dissipation holes include a plurality of side heat dissipation holes and a plurality of end heat dissipation holes, wherein, the plurality of side heat dissipation holes are distributed on the circumferential surface of the housing structure, and the plurality of end heat dissipation holes are distributed on the end surface of the housing structure.

[0010] Further, a plurality of the side heat dissipation holes are distributed in the circumferential and axial directions of the circumferential surface of the housing structure and open towards the heat dissipation fan blades, and a plurality of the end heat dissipation holes are distributed in the circumferential direction of the end surface of the housing structure and open towards the heat dissipation fan blades.

[0011] Further, the motor further includes a stator assembly fixed inside the housing structure. The stator assembly includes a stator core and a stator winding disposed on the stator core, and the stator winding is located between the side heat dissipation holes and the heat dissipation fan blades.

[0012] Further, the heat dissipation holes are kidney-shaped holes or arc-shaped holes.

[0013] Further, the housing structure includes a cylinder body and two end covers. The two end covers are respectively fixed to both ends of the cylinder body, and a plurality of the heat dissipation holes are distributed on the two end covers.

[0014] Further, both of the two end covers have mounting grooves. The rotor assembly further includes two bearings cooperating with the rotating shaft, and the two bearings are respectively installed in the two mounting grooves.

[0015] Applying the technical solution of the present utility model, a motor is provided, including: a housing structure with a plurality of heat dissipation holes distributed thereon; a rotor assembly including a rotating shaft, a rotor core, and a rotor winding, the rotating shaft is rotatably disposed in the housing structure, the rotor core is disposed on the rotating shaft and inside the housing structure, and the rotor winding is disposed on the rotor core; two heat dissipation fan blades located inside the housing structure, the two heat dissipation fan blades rotate with the rotating shaft, and the two heat dissipation fan blades are respectively located on both sides of the rotor core. In this solution, a heat dissipation fan blade is respectively disposed on both sides of the rotor core. In this way, when the rotating shaft rotates, it drives the two heat dissipation fan blades to rotate, thereby accelerating the air flow on both sides of the rotor core, improving the heat dissipation effect, and through the plurality of heat dissipation holes on the housing structure, the air exchange inside and outside the motor can be strengthened, further improving the heat dissipation effect of the motor. This solution can be applied to motors of types such as capacitor-run asynchronous motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 shows a schematic structural diagram of the motor provided by the embodiment of the present utility model;

[0018] Figure 2 shows Figure 1 a schematic diagram of the rotor assembly and the heat dissipation fan blades in

[0019] Figure 3 shows a cross-sectional view of the end cap in Figure 1 ; a front view of the end cap in

[0020] Figure 4 shows Figure 1 ; a front view of the end cap in

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 10. Housing structure;

[0023] 11. Side heat dissipation holes; 12. End heat dissipation holes; 13. End cap; 14. Mounting groove;

[0024] 20. Rotor assembly;

[0025] 21. Rotating shaft; 22. Rotor iron core; 23. Rotor aluminum ring; 24. Bearing;

[0026] 30. Heat dissipation fan blades;

[0027] 40. Stator assembly;

[0028] 41. Stator iron core; 42. Stator winding. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] As Figures 1 to 4 shown, an embodiment of the present invention provides a motor, including: a housing structure 10, on which a plurality of heat dissipation holes are distributed; a rotor assembly 20, the rotor assembly 20 includes a rotating shaft 21, a rotor iron core 22 and a rotor winding, the rotating shaft 21 is rotatably arranged on the housing structure 10, the rotor iron core 22 is arranged on the rotating shaft 21 and is located inside the housing structure 10, and the rotor winding is arranged on the rotor iron core 22; two heat dissipation fan blades 30, located inside the housing structure 10, the two heat dissipation fan blades 30 rotate with the rotating shaft 21, and the two heat dissipation fan blades 30 are respectively located on both sides of the rotor iron core 22.

[0031] In this solution, a cooling fan 30 is respectively arranged on both sides of the rotor core 22. When the rotating shaft 21 rotates, the two cooling fans 30 are driven to rotate, thereby accelerating the air flow on both sides of the rotor core 22, improving the heat dissipation effect. And through the multiple heat dissipation holes on the housing structure 10, the air exchange inside and outside the motor can be strengthened, further improving the heat dissipation effect of the motor. This solution can be applied to motors such as capacitor-run asynchronous motors.

[0032] As Figure 1 and Figure 2 shown, the rotor assembly 20 further includes two rotor aluminum rings 23, and the two rotor aluminum rings 23 are respectively arranged on both sides of the rotor core 22; wherein, the two cooling fans 30 are respectively mounted on the two rotor aluminum rings 23, or the two cooling fans 30 are both mounted on the rotating shaft 21. That is, the cooling fans 30 can be mounted on the rotor aluminum rings 23 or on the rotating shaft 21 according to needs.

[0033] The main function of the rotor aluminum ring 23 in the motor is to generate electromagnetic induction. When current passes through the stator winding, a rotating magnetic field will be generated in the rotor assembly 20, and this rotating magnetic field will generate an induced current in the rotor aluminum ring 23, thereby generating torque to make the rotor assembly 20 rotate.

[0034] The rotor assembly 20 can increase the magnetic flux in the motor, thereby improving the efficiency and output power of the motor. Magnetic flux refers to the number of magnetic field lines passing through a certain area. The larger the magnetic flux, the higher the output power of the motor.

[0035] During the operation of the motor, the induced current in the rotor assembly 20 will form eddy currents. Eddy currents will cause energy losses and reduce the motor efficiency. The rotor assembly 20 has good electrical conductivity, which can reduce eddy current losses and improve the motor efficiency.

[0036] Moreover, the rotor assembly 20 has certain heat dissipation performance, which can help the motor dissipate heat during operation and prevent the motor from overheating. The rotor assembly 20 can also provide certain mechanical support for the rotor assembly 20 of the motor, ensuring the stability and service life of the motor.

[0037] Specifically, each cooling fan 30 is in interference fit with a corresponding rotor aluminum ring 23, or the two cooling fans 30 are both in interference fit with the rotating shaft 21. By using the interference fit method, the reliable fixation of the two cooling fans 30 is achieved.

[0038] Among them, the cooling fan 30 is an axial flow fan, so the blowing direction is the axial direction of the motor. Generally speaking, the asynchronous motor for household appliances has a small specification, so the internal space is small, and the available size of the cooling fan is limited. Selecting an axial flow fan to blow outwards, the air flow around the motor is uniform, and the exhaust air flow velocity of the cooling fan 30 is high, which is conducive to heat dissipation.

[0039] As Figure 1 , Figure 3 and Figure 4 shown, the multiple heat dissipation holes include multiple side heat dissipation holes 11 and multiple end heat dissipation holes 12. Among them, the multiple side heat dissipation holes 11 are distributed on the circumferential surface of the housing structure 10, and the multiple end heat dissipation holes 12 are distributed on the end surface of the housing structure 10.

[0040] In this solution, by arranging multiple side heat dissipation holes 11 on the circumferential surface of the housing structure 10 and arranging multiple end heat dissipation holes 12 on the end surface of the housing structure 10, ventilation can be achieved at multiple positions in the circumferential and axial directions of the housing structure 10, improving the heat dissipation effect.

[0041] As Figure 3 and Figure 4 shown, the multiple side heat dissipation holes 11 are distributed in the circumferential and axial directions on the circumferential surface of the housing structure 10 and the openings face the heat dissipation fan 30, and the multiple end heat dissipation holes 12 are distributed in the circumferential direction on the end surface of the housing structure 10 and the openings face the heat dissipation fan 30. Through the above settings, the ventilation performance of the heat dissipation fan 30 during rotation is enhanced, thereby improving the heat dissipation effect of the motor and improving the performance and reliability of the motor.

[0042] As Figure 1 shown, the motor further includes a stator assembly 40. The stator assembly 40 is fixed inside the housing structure 10. The stator assembly 40 includes a stator core 41 and a stator winding 42 arranged on the stator core 41. The stator winding 42 is located between the side heat dissipation holes 11 and the heat dissipation fan 30.

[0043] When the motor is running, the stator winding 42 generates a large amount of heat. By arranging the stator winding 42 between the side heat dissipation holes 11 and the heat dissipation fan 30, the wind flowing between the side heat dissipation holes 11 and the heat dissipation fan 30 will pass through the stator winding 42, thereby taking away the heat generated by the stator winding 42.

[0044] As Figure 3 and Figure 4 shown, the heat dissipation holes are kidney-shaped holes or arc-shaped holes. Of course, they can also be set to holes of other shapes according to needs.

[0045] Among them, the housing structure 10 includes a cylinder body and two end covers 13. The two end covers 13 are respectively fixed to both ends of the cylinder body, and the multiple heat dissipation holes are distributed on the two end covers 13. The positions of the two end covers 13 are respectively close to the two heat dissipation fans 30. Therefore, distributing the multiple heat dissipation holes on the two end covers 13 can enhance the ventilation effect of the heat dissipation fan 30 during rotation. Among them, the shapes and structures of the two end covers 13 can be the same or different, and are set according to needs.

[0046] As Figure 3 and Figure 4As shown, the end cap 13 is a thin-walled structure and can be processed by stamping or other methods. Such a structure is simple and low in cost.

[0047] As Figure 1 and Figure 3 shown, both end caps 13 have mounting grooves 14. The rotor assembly 20 further includes two bearings 24 that cooperate with the rotating shaft 21. The two bearings 24 are respectively installed in the two mounting grooves 14. In this way, the rotating shaft 21 can be supported by the two bearings 24 and the rotating shaft 21 can rotate smoothly.

[0048] In this solution, a heat dissipation fan blade 30 is respectively arranged on both sides of the rotor core 22. In this way, when the rotating shaft 21 rotates, it drives the two heat dissipation fan blades 30 to rotate, thereby accelerating the air flow on both sides of the rotor core 22, improving the heat dissipation effect, and through the multiple heat dissipation holes on the housing structure 10, the air exchange inside and outside the motor can be strengthened, further improving the heat dissipation effect of the motor. This solution can be applied to motors such as capacitor-run asynchronous motors.

[0049] The above are only optional embodiments of this solution and are not used to limit this solution. For those skilled in the art, this solution can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this solution shall be included within the protection scope of this solution.

[0050] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0051] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0052] In the description of this solution, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this solution and simplifying the description. Without contrary instructions, these orientation words do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of this solution; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0053] For convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. may be used here to describe the spatial positional relationship of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above or over other devices or structures" will then be positioned "below or under other devices or structures". Thus, the exemplary term "above..." can include both orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0054] In addition, it should be noted that the use of words such as "first", "second" to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stated, these words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of this solution.

Claims

1. A motor, characterized in that: include: A shell structure (10), wherein a plurality of heat dissipation holes are distributed on the shell structure (10); A rotor assembly (20), the rotor assembly (20) comprising a rotating shaft (21), a rotor core (22) and a rotor winding, the rotating shaft (21) being rotatably disposed on the housing structure (10), the rotor core (22) being disposed on the rotating shaft (21) and located inside the housing structure (10), and the rotor winding being disposed on the rotor core (22); Two heat dissipation blades (30) are located in the outer shell structure (10), the two heat dissipation blades (30) rotate along with the rotating shaft (21), and the two heat dissipation blades (30) are respectively located on both sides of the rotor core (22).

2. The motor according to claim 1, characterized in that The rotor assembly (20) further comprises two rotor aluminum rings (23), wherein the two rotor aluminum rings (23) are respectively arranged on two sides of the rotor core (22); wherein the two heat dissipation blades (30) are respectively installed on the two rotor aluminum rings (23), or the two heat dissipation blades (30) are both installed on the rotating shaft (21).

3. The motor according to claim 2, characterized in that Each of the heat dissipation blades (30) is respectively interference-fitted with a corresponding rotor aluminum ring (23), or both of the heat dissipation blades (30) are interference-fitted with the rotating shaft (21).

4. The motor according to claim 1, characterized in that The heat dissipation fan blades (30) are axial flow fan blades.

5. The motor according to claim 1, characterized in that The plurality of heat dissipation holes include a plurality of side heat dissipation holes (11) and a plurality of end heat dissipation holes (12), wherein the plurality of side heat dissipation holes (11) are distributed on the circumferential surface of the outer shell structure (10), and the plurality of end heat dissipation holes (12) are distributed on the end surface of the outer shell structure (10).

6. The motor according to claim 5, characterized in that The plurality of side heat dissipation holes (11) are distributed in the circumferential direction and axial direction of the circumferential surface of the outer shell structure (10) and open toward the heat dissipation blades (30), and the plurality of end heat dissipation holes (12) are distributed in the circumferential direction of the end surface of the outer shell structure (10) and open toward the heat dissipation blades (30).

7. The motor according to claim 5, characterized in that The motor further comprises a stator assembly (40), wherein the stator assembly (40) is fixed in the housing structure (10), the stator assembly (40) comprises a stator core (41) and a stator winding (42) arranged on the stator core (41), and the stator winding (42) is located between the side heat dissipation hole (11) and the heat dissipation blade (30).

8. The motor according to claim 1, characterized in that The heat dissipation hole is a waist-shaped hole or an arc-shaped hole.

9. The motor according to claim 1, characterized in that The outer shell structure (10) comprises a cylinder and two end covers (13), the two end covers (13) are respectively fixed to two ends of the cylinder, and the plurality of heat dissipation holes are distributed on the two end covers (13).

10. The motor according to claim 9, characterized in that The two end covers (13) each have a mounting groove (14), and the rotor assembly (20) further comprises two bearings (24) matched with the rotating shaft (21), and the two bearings (24) are respectively mounted in the two mounting grooves (14).

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