CN222638275U - Motor components and brushless motors - Google Patents
Motor components and brushless motors Download PDFInfo
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- CN222638275U CN222638275U CN202323438952.5U CN202323438952U CN222638275U CN 222638275 U CN222638275 U CN 222638275U CN 202323438952 U CN202323438952 U CN 202323438952U CN 222638275 U CN222638275 U CN 222638275U
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- end cover
- rotating shaft
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- heat
- motor assembly
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Abstract
本实用新型公开了一种电机组件及无刷电机，其包括：电机壳、转轴、定子套组和端盖；转轴安装于所述电机壳内，所述转轴的外周套设有转子套组，所述定子套组能够通过电磁转矩带动所述转子绕组进行旋转；所述端盖上设置有翅片组，所述翅片组包括多个由所述端盖的中心朝向所述端盖的周侧延伸的散热翅片。端盖则可以通过翅片组对其内外两侧进行热交换，从而使定子套组、转子套组和转轴运作时产生热量可以得到及时地排出，进而避免定子套组、转子套组和转轴因温度过高而导致功率下降甚至损坏的问题。并且，由于散热翅片还朝向端盖的周侧延伸，因此也可以更好地将热量快速导出到端盖的周侧部位，从而有效地避免热量积聚的问题。
The utility model discloses a motor assembly and a brushless motor, which include: a motor housing, a rotating shaft, a stator sleeve and an end cover; the rotating shaft is installed in the motor housing, and the outer periphery of the rotating shaft is sleeved with a rotor sleeve, and the stator sleeve can drive the rotor winding to rotate through electromagnetic torque; the end cover is provided with a fin group, and the fin group includes a plurality of heat dissipation fins extending from the center of the end cover toward the peripheral side of the end cover. The end cover can perform heat exchange on both sides of the inside and outside through the fin group, so that the heat generated by the stator sleeve, the rotor sleeve and the rotating shaft during operation can be discharged in time, thereby avoiding the problem of power reduction or even damage of the stator sleeve, the rotor sleeve and the rotating shaft due to excessive temperature. In addition, since the heat dissipation fins also extend toward the peripheral side of the end cover, the heat can also be better and quickly exported to the peripheral side of the end cover, thereby effectively avoiding the problem of heat accumulation.
Description
Technical Field
The utility model relates to the field of motors, in particular to a motor assembly and a brushless motor.
Background
It is well known that motors generate heat during operation, such as electrical heating of energized components, frictional heating during mechanical movement, and the like. If this heat is not removed in a timely manner, it can lead to excessive heat and corresponding component damage problems.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a motor assembly which can effectively perform heat dissipation operation on an operating motor.
The utility model further provides a brushless motor with the motor assembly.
The motor assembly comprises a motor shell, a rotating shaft, a stator sleeve and an end cover, wherein the rotating shaft is arranged in the motor shell, a rotor sleeve is sleeved on the periphery of the rotating shaft, the rotor sleeve is rotatably arranged in the motor shell and can drive the rotating shaft to rotate relative to the motor shell, the stator sleeve is arranged in the motor shell, the rotor sleeve is arranged in the stator sleeve, the stator sleeve can drive the rotor winding to rotate through electromagnetic torque, the end cover is arranged in the motor shell, the end cover can be matched with the motor shell to relatively fix the stator sleeve and the rotor sleeve, and the end cover is provided with a fin group which comprises a plurality of radiating fins extending from the center of the end cover to the periphery of the end cover.
The motor assembly provided by the embodiment of the utility model has the advantages that after the stator sleeve group is electrified, electromagnetic torque is generated by matching with the rotor sleeve group, and the rotor sleeve group is driven to rotate through the electromagnetic torque, so that the rotary driving effect of the rotary shaft is finished. When the stator sleeve, the rotor sleeve and the rotating shaft operate, heat is generated, and the heat is filled between the motor casing and the end cover. The end cover can exchange heat between the inner side and the outer side of the end cover through the fin group, so that heat generated during operation of the stator sleeve group, the rotor sleeve group and the rotating shaft can be timely discharged, and further the problem that the power is reduced or even damaged due to overhigh temperature of the stator sleeve group, the rotor sleeve group and the rotating shaft is avoided. In addition, the radiating fins extend towards the periphery of the end cover, so that heat can be better and rapidly conducted to the periphery of the end cover, and the problem of heat accumulation is effectively avoided.
According to some embodiments of the utility model, the shaft passes through the end cap from the center of the end cap, and each of the heat radiating fins is distributed around the shaft.
According to some embodiments of the utility model, each of the heat radiating fins extends spirally curved from a center of the end cover toward a peripheral side of the end cover.
According to some embodiments of the utility model, one end of the radiating fin close to the center of the end cover is provided with a first end, one end of the radiating fin close to the periphery of the end cover is provided with a second end, the length of the radiating fin along the axis direction of the rotating shaft is the height of the radiating fin, and the height of the first end is smaller than the height of the second end.
According to some embodiments of the utility model, the width dimension of the first end portion increases gradually toward a direction approaching the end cap peripheral side.
According to some embodiments of the utility model, each of the heat dissipating fins is equally circumferentially distributed with respect to the center of the end cap.
According to some embodiments of the utility model, the motor housing is provided with a connection lug for connection to an external part.
According to some embodiments of the utility model, a heat extraction fan is connected to an end of the rotating shaft away from the end cover, and the heat extraction fan can drive air flow to blow through the stator sleeve set and the rotor sleeve set and flow to the end cover.
According to some embodiments of the utility model, a circuit board for electrical connection is connected to the inner wall of the end cap.
A brushless motor according to an embodiment of the second aspect of the present utility model includes a motor assembly according to an embodiment of the first aspect of the present utility model described above.
The brushless motor provided by the embodiment of the utility model has the advantages that after the stator sleeve group is electrified, electromagnetic torque is generated by matching with the rotor sleeve group, and the rotor sleeve group is driven to rotate through the electromagnetic torque, so that the rotary driving effect of the rotating shaft is achieved. When the stator sleeve, the rotor sleeve and the rotating shaft operate, heat is generated, and the heat is filled between the motor casing and the end cover. The end cover can exchange heat between the inner side and the outer side of the end cover through the fin group, so that heat generated during operation of the stator sleeve group, the rotor sleeve group and the rotating shaft can be timely discharged, and further the problem that the power is reduced or even damaged due to overhigh temperature of the stator sleeve group, the rotor sleeve group and the rotating shaft is avoided. In addition, the radiating fins extend towards the periphery of the end cover, so that heat can be better and rapidly conducted to the periphery of the end cover, and the problem of heat accumulation is effectively avoided.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic illustration of a motor assembly according to an embodiment of the present utility model;
FIG. 2 is a schematic illustration of a cross-section of the motor assembly shown in FIG. 1;
FIG. 3 is a schematic illustration of an end cap of the motor assembly shown in FIG. 1;
Fig. 4 is an inside schematic view of an end cap of the motor assembly shown in fig. 1.
Reference numerals are motor case 100, end cap 200, fin group 250, first end 253, heat radiating fins 255, second end 257, connecting lugs 300, circuit board 400, rotary shaft 500, stator pack 700, rotor pack 800;
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, a motor assembly includes a motor case 100, a rotating shaft 500, a stator pack 700 and an end cover 200, wherein the rotating shaft 500 is installed in the motor case 100, a rotor pack 800 is sleeved on the outer circumference of the rotating shaft 500, the rotor pack 800 is rotatably installed in the motor case 100 and can drive the rotating shaft 500 to rotate relative to the motor case 100, the stator pack 700 is installed in the motor case 100, the rotor pack 800 is installed in the stator pack 700, the stator pack 700 can drive a rotor winding to rotate through electromagnetic torque, the end cover 200 is installed in the motor case 100, the end cover 200 can relatively fix the stator pack 700 and the rotor pack 800 in cooperation with the motor case 100, a fin group 250 is arranged on the end cover 200, and the fin group 250 includes a plurality of heat dissipation fins 255 extending from the center of the end cover 200 toward the circumference of the end cover 200. After the stator set 700 is energized, electromagnetic torque is generated by matching with the rotor set 800, and the rotor set 800 is driven to rotate by the electromagnetic torque, so that the rotation driving effect of the rotating shaft 500 is completed. During operation of stator pack 700, rotor pack 800 and shaft 500, heat is generated and is supplied between motor housing 100 and end cap 200. The end cover 200 can exchange heat between the inner side and the outer side of the stator assembly 700, the rotor assembly 800 and the rotating shaft 500 through the fin assemblies 250, so that heat generated during operation of the stator assembly 700, the rotor assembly 800 and the rotating shaft 500 can be timely discharged, and further the problem that the stator assembly 700, the rotor assembly 800 and the rotating shaft 500 are reduced in power or even damaged due to overhigh temperature is avoided. Further, since the heat radiating fins 255 extend toward the peripheral side of the end cover 200, heat can be more effectively and rapidly conducted out to the peripheral side portion of the end cover 200, and thus the problem of heat accumulation can be effectively avoided.
In certain embodiments, referring to fig. 3, the shaft 500 passes through the end cap 200 from the center of the end cap 200, and the individual heat dissipating fins 255 are distributed around the shaft 500. The heat radiating fins 255 are distributed around the rotation shaft 500, so that the heat radiating fins 255 can perform a rapid heat radiating effect on the circumference of the rotation shaft 500. The mechanical heat and the friction heat generated by the rotating shaft 500 in the rotating process can obtain the timely discharging effect of the radiating fins 255, so that the problem that the rotatable shaft 500 and the contact part thereof fail due to heat generation is effectively avoided, and the smooth and stable operation of the motor is ensured.
It is contemplated that the heat dissipating fins 255 may also be distributed in other ways, such as extending directly from the perimeter side of the end cap 200 toward the outside of the end cap 200. The specific embodiments can be adjusted according to actual needs, and are not limited herein.
In certain embodiments, referring to fig. 3, each of the heat dissipating fins 255 extends helically from the center of the end cap 200 toward the peripheral side of the end cap 200. The spiral bending extension mode can effectively prolong the radiating fins 255 on the premise of not increasing the size of the end cover 200, so that the radiating area of the radiating fins 255 on the end cover 200 is effectively increased, the end cover 200 can be better radiated, and the problems of overhigh heat and corresponding power reduction and damage are avoided.
In some embodiments, referring to FIG. 3, the heat dissipating fin 255 has a first end 253 at an end near the center of the end cap 200, a second end 257 at an end of the heat dissipating fin 255 near the circumferential side of the end cap 200, and the length of the heat dissipating fin 255 in the axial direction of the rotation shaft 500 is the height of the heat dissipating fin 255, and the height of the first end 253 is smaller than the height of the second end 257. Since the first end 253 is less than the second end 257, the first end 253 will have more airflow to contact than the second end 257, resulting in a pressure differential between the first end 253 and the second end 257, thereby allowing the airflow to flow more quickly and smoothly over the end cap 200, and better heat dissipation.
Specifically, the height dimension of the first end 253 gradually decreases toward the circumferential side near the end cover 200.
It is contemplated that the first end 253 and the second end 257 may be equally high. The specific embodiments can be adjusted according to actual needs, and are not limited herein.
In certain embodiments, referring to fig. 3, the width dimension of the first end 253 increases gradually toward the direction toward the peripheral side of the end cap 200. Since the width dimension of the first end 253 is gradually increased and the first end 253 is gradually decreased, the pneumatic force at the first end 253 will flow upward of the first end 253. Since the end cap 200 and other motor components are located below the first end 253, the first end 253 guides the airflow to above the first end 253, which effectively improves the heat dissipation effect, thereby avoiding the problem of heat accumulation.
In certain embodiments, referring to fig. 3, each fin 255 is equally circumferentially distributed with respect to the center of the end cap 200. The heat dissipation fins 255 distributed around the end cover 200 at equal intervals can effectively and uniformly carry heat away from the end cover 200, so that the problem of accumulation of heat at individual parts of the end cover 200 is effectively avoided, and the use stability of the end cover 200 is ensured.
In certain embodiments, referring to fig. 2, motor housing 100 is provided with a connection lug 300 for connection to an external component. The connection lug 300 can connect the motor case 100 with external parts, thereby smoothly achieving the effect of mounting and fixing the motor.
In some embodiments, referring to fig. 1, a heat rejection fan is connected to an end of the shaft 500 remote from the end cap 200, and the heat rejection fan is capable of driving an air flow through the stator and rotor packs 700 and 800 and to the end cap 200. When the heat exhausting fan is started, heat generated by the stator sleeve 700, the rotor sleeve 800 and the rotating shaft 500 during operation can be driven to the end cover 200 to be discharged, so that the end cover 200 can conveniently discharge the heat through the fin group 250, and further the heat radiating efficiency is effectively improved.
In some embodiments, referring to fig. 4, a circuit board 400 for electrical connection is attached to the inner wall of the end cap 200. The circuit board 400 is directly mounted on the inner wall of the end cap 200, so that the electric heat emitted by the circuit board 400 during operation is rapidly and directly emitted to the end cap 200. Therefore, when the fin group 250 dissipates heat at the end cover 200, the heat accumulated on the circuit board 400 can be rapidly and directly dissipated, so that the problems of power reduction and damage of the circuit board 400 caused by overhigh heat are effectively avoided.
A second aspect of the utility model provides an embodiment of a brushless motor comprising the above motor assembly. After the stator set 700 is energized, electromagnetic torque is generated by matching with the rotor set 800, and the rotor set 800 is driven to rotate by the electromagnetic torque, so that the rotation driving effect of the rotating shaft 500 is completed. During operation of stator pack 700, rotor pack 800 and shaft 500, heat is generated and is supplied between motor housing 100 and end cap 200. The end cover 200 can exchange heat between the inner side and the outer side of the stator assembly 700, the rotor assembly 800 and the rotating shaft 500 through the fin assemblies 250, so that heat generated during operation of the stator assembly 700, the rotor assembly 800 and the rotating shaft 500 can be timely discharged, and further the problem that the stator assembly 700, the rotor assembly 800 and the rotating shaft 500 are reduced in power or even damaged due to overhigh temperature is avoided. Further, since the heat radiating fins 255 extend toward the peripheral side of the end cover 200, heat can be more effectively and rapidly conducted out to the peripheral side portion of the end cover 200, and thus the problem of heat accumulation can be effectively avoided.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. An electric motor assembly, comprising:
A motor case (100);
The rotating shaft (500) is arranged in the motor casing (100), a rotor sleeve group (800) is sleeved on the periphery of the rotating shaft (500), and the rotor sleeve group (800) is rotatably arranged in the motor casing (100) and can drive the rotating shaft (500) to rotate relative to the motor casing (100);
The stator sleeve group (700) is arranged in the motor casing (100), the rotor sleeve group (800) is arranged in the stator sleeve group (700), and the stator sleeve group (700) can drive the rotor sleeve group (800) to rotate through electromagnetic torque;
The motor cover comprises an end cover (200), wherein the end cover (200) is arranged on a motor casing (100), the end cover (200) can be matched with the motor casing (100) to relatively fix the stator sleeve group (700) and the rotor sleeve group (800), a fin group (250) is arranged on the end cover (200), and the fin group (250) comprises a plurality of radiating fins (255) extending from the center of the end cover (200) to the periphery of the end cover (200).
2. The motor assembly of claim 1, wherein:
The rotating shaft (500) passes through the end cover (200) from the center of the end cover (200), and the radiating fins (255) are distributed around the rotating shaft (500).
3. The motor assembly of claim 2, wherein:
each of the heat radiating fins (255) is spirally curved and extended from the center of the end cover (200) toward the peripheral side of the end cover (200).
4. The motor assembly of claim 2, wherein:
The heat dissipation fin (255) is provided with a first end (253) at one end close to the center of the end cover (200), the heat dissipation fin (255) is provided with a second end (257) at one end close to the periphery of the end cover (200), the length of the heat dissipation fin (255) along the axis direction of the rotating shaft (500) is the height of the heat dissipation fin (255), and the height of the first end (253) is smaller than the height of the second end (257).
5. The motor assembly of claim 4, wherein:
the width dimension of the first end portion (253) gradually increases toward the end cap (200) peripheral side.
6. The motor assembly of claim 2, wherein:
each of the heat radiating fins (255) is equally circumferentially distributed with respect to the center of the end cap (200).
7. The motor assembly of claim 1, wherein:
The motor housing (100) is provided with a connection lug (300) for connection to an external component.
8. The motor assembly of claim 1, wherein:
And one end of the rotating shaft (500) far away from the end cover (200) is connected with a heat exhausting fan, and the heat exhausting fan can drive air flow to blow through the stator sleeve (700) and the rotor sleeve (800) and flow to the end cover (200).
9. The motor assembly of claim 1, wherein:
the inner wall of the end cover (200) is connected with a circuit board (400) for electric connection.
10. A brushless motor comprising a motor assembly as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323438952.5U CN222638275U (en) | 2023-12-15 | 2023-12-15 | Motor components and brushless motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323438952.5U CN222638275U (en) | 2023-12-15 | 2023-12-15 | Motor components and brushless motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222638275U true CN222638275U (en) | 2025-03-18 |
Family
ID=94966315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323438952.5U Active CN222638275U (en) | 2023-12-15 | 2023-12-15 | Motor components and brushless motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222638275U (en) |
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2023
- 2023-12-15 CN CN202323438952.5U patent/CN222638275U/en active Active
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