CN206041742U - Motor and its stator structure - Google Patents

Abstract

The utility model provides a stator structure, include: stator core, and two injection moldings, mould plastics respectively set up in stator core's both ends, the injection molding is the loop configuration setting, wherein, be provided with on the injection molding and be used for radiating radiating part. The radiating part increases stator structure's surface area, and then increases stator structure's heat radiating area, is favorable to stator structure's heat dissipation, reduces stator structure's warm speed increase degree, reduces the temperature of motor then, and to avoid electrical burns out because of overheated, guarantees the performance of motor. The utility model discloses a stator structure increases heat radiating area through the radiating part for stator structure's radiating rate reduces stator structure's warm speed increase degree, the problem that temperature rise fast of effectual solution because of dispelling the heat and not leading to well, convenient to use. The utility model also provides a motor.

Description

Motor and its stator structure

technical field

The utility model relates to the technical field of motor equipment, in particular to a motor and a stator structure thereof.

Background technique

For the current plastic-enclosed motor, when the plastic-enclosed motor is working, the plastic-enclosed stator will generate more heat. Usually, the heat dissipation performance of the injection plastic at both ends of the plastic-enclosed stator is not good, which will lead to a rapid temperature rise of the plastic-enclosed stator and reduce the performance of the plastic-enclosed motor. , In severe cases, the motor will be overheated and burned, which will affect the use of the plastic-encapsulated motor.

Utility model content

Based on this, it is necessary to solve the problem of poor heat dissipation performance of the current injection molding motor, to provide a stator structure that increases the heat dissipation area and ensure the heat dissipation effect, and also provides a motor with the above stator structure.

Above-mentioned purpose realizes through following technical scheme:

A stator structure comprising:

stator core; and

Two injection molded parts are respectively injection molded at both ends of the stator core, and the injection molded parts are arranged in a ring structure; wherein, a heat dissipation part for heat dissipation is arranged on the injection molded parts.

In one of the embodiments, the heat dissipation part is integrated with the injection molded part.

In one of the embodiments, the number of the heat dissipation parts is at least two, and at least two of the heat dissipation parts are arranged on the annular inner wall of the injection molded part.

In one of the embodiments, at least two of the heat dissipation parts are arranged in a ring shape, a strip shape or a curve shape.

In one embodiment, at least two of the heat dissipation parts are arranged side by side or alternately.

In one of the embodiments, at least two of the heat dissipation parts are arranged in rows and columns or arranged in a dislocation manner.

In one embodiment, the sum of the cross-sectional areas of at least two heat dissipation parts is 40%-80% of the surface area of the inner wall of the injection molded part.

In one embodiment, the heat dissipation portion is a heat dissipation groove or a heat dissipation protrusion.

In one embodiment, the heat dissipation portion is an uneven surface, and the heat dissipation portion is located on the annular inner wall of the injection molded part.

In one of the embodiments, the stator structure further includes a skeleton and windings wound on the skeleton;

The frame is arranged in the stator core, and the two ends of the frame expose the ends of the stator core, and the frame is in contact with the injection molded part.

It also relates to a motor, comprising the stator structure described in any one of the above technical features.

The beneficial effects of the utility model are:

The stator structure of the utility model has a simple and reasonable structural design. The heat dissipation part is added to the injection molded part, and the surface area of the stator structure is increased through the heat dissipation part, thereby increasing the heat dissipation area of the stator structure, which is beneficial to the heat dissipation of the stator structure and reduces the temperature rise of the stator structure. speed, and then reduce the temperature of the motor to avoid the motor from being burned due to overheating and ensure the performance of the motor. The stator structure of the utility model increases the heat dissipation area through the heat dissipation part, accelerates the heat dissipation speed of the stator structure, reduces the temperature rise speed of the stator structure, effectively solves the problem of rapid temperature rise caused by poor heat dissipation, and is easy to use.

Since the stator structure has the above-mentioned technical effect, the motor including the above-mentioned stator structure also has the corresponding technical effect.

Description of drawings

Fig. 1 is the three-dimensional view of the stator structure of an embodiment of the present utility model;

Fig. 2 is a front sectional view of the stator structure shown in Fig. 1;

Fig. 3 is a front sectional view of a stator structure according to another embodiment of the present invention;

in:

100-stator structure;

110 - stator core;

120-injection molded parts;

121-radiation unit;

130 - skeleton;

140 - Winding.

detailed description

In order to make the purpose, technical solution and advantages of the present utility model clearer, the motor and its stator structure of the present utility model will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. Connected, or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components , unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Referring to Fig. 1 to Fig. 3, the present invention provides a stator structure 100, which is installed in a motor. When the motor is working, the stator structure 100 is the main heat source of the motor, and the heat dissipation performance of the stator structure 100 can affect the performance of the motor. The stator structure 100 of the utility model can increase the heat dissipation area, improve the heat dissipation performance of the stator structure 100, ensure the heat dissipation effect of the stator structure 100, make the temperature rise of the stator structure 100 slow, and then reduce the temperature rise of the motor, and avoid the occurrence of the stator structure. 100% overheating and burning out the motor to ensure the performance of the motor.

In the present invention, the stator structure 100 includes a stator core 110 and two injection molded parts 120 . The two injection molded parts 120 are respectively disposed on two ends of the stator core 110 . In the present invention, the stator structure 100 is injection-molded, and two injection-molded parts 120 are injection-molded with the two ends of the stator core 110 . Meanwhile, the injection molded part 120 is arranged in a ring structure. In this way, when the motor is working, the heat of the stator structure 100 can be dissipated through the annular inner wall of the injection molded part 120 to achieve the purpose of heat dissipation, so as to reduce the temperature rise of the stator structure 100 .

However, for some motors, such as motors with high power density, only heat dissipation through the annular inner wall of the injection molded part 120 cannot achieve the purpose of reducing the temperature rise. Therefore, the utility model adds a heat dissipation part 121 to the injection molded part 120, and realizes the heat dissipation of the stator structure 100 by increasing the heat dissipation part 121, reduces the temperature of the stator structure 100, and then reduces the temperature rise of the motor, and avoids burning of the motor due to overheating of the stator structure 100 , Improve the performance of the motor. The heat dissipation part 121 can increase the heat dissipation area of the injection molded part 120 , so that the heat dissipation speed of the stator structure 100 is accelerated, and the temperature of the stator structure 100 is reduced.

The stator structure 100 of the present utility model increases the heat dissipation part 121 on the injection molded part 120, thereby increasing the heat dissipation area of the injection molded part 120, so that the heat generated by the stator core 110 can be dissipated through the heat dissipation part 121 on the injection molded part 120, effectively The temperature of the stator structure 100 is lowered, thereby reducing the temperature rise of the motor, preventing the motor from being burned due to overheating of the stator structure 100, especially for motors with high power density, and ensuring the performance of the motor.

Further, the stator structure 100 further includes a skeleton 130 and a winding 140 wound on the skeleton 130 . The frame 130 is disposed in the stator core 110 , and the two ends of the frame 130 expose the ends of the stator core 110 , and the frame 130 is in contact with the injection molded part 120 . When the stator structure 100 of the present utility model is injection molded, the stator core 110, the skeleton 130 and the winding 140 are first assembled, and then a mold is made according to the drawing of the stator structure 100 with the heat dissipation part 121, and the stator structure 100 is injection molded through the mold , to facilitate processing. Moreover, after the mold is made, the stator structures 100 of the same size can be injection molded through the mold. This can reduce production costs and improve production efficiency.

For the current plastic-enclosed motor, when the plastic-enclosed motor is working, the plastic-enclosed stator will generate more heat. Usually, the heat dissipation performance of the injection plastic at both ends of the plastic-enclosed stator is not good, which will lead to a rapid temperature rise of the plastic-enclosed stator and reduce the performance of the plastic-enclosed motor. , In severe cases, the motor will be overheated and burned, which will affect the use of the plastic-encapsulated motor. In the stator structure 100 of the present utility model, a cooling part 121 is added on the injection molded part 120, and the surface area of the stator structure 100 is increased through the cooling part 121, thereby increasing the heat dissipation area of the stator structure 100, which is beneficial to the heat dissipation of the stator structure 100 and reduces the heat dissipation of the stator structure 100. The speed of temperature rise, and then reduce the temperature of the motor, avoid the motor from being burned due to overheating, and ensure the performance of the motor. The stator structure 100 of the utility model increases the heat dissipation area through the heat dissipation part 121, accelerates the heat dissipation speed of the stator structure 100, reduces the temperature rise speed of the stator structure 100, effectively solves the problem of rapid temperature rise caused by poor heat dissipation, and is easy to use .

As a possible implementation manner, the heat dissipation part 121 and the injection molded part 120 are integrally structured. The integrated heat dissipation part 121 and the injection molded part 120 can save the production process, improve the production efficiency and reduce the production cost. At the same time, the integrated heat dissipation part 121 and the injection molded part 120 can also ensure the reliability between the heat dissipation part 121 and the injection molded part 120 , thereby ensuring the heat dissipation performance of the stator structure 100 . Moreover, the surface of the heat dissipation portion 121 can also be an inclined surface or a curved surface, which can increase the heat dissipation area of the heat dissipation portion 121, further increase the heat dissipation area of the injection molded part 120 of the stator structure 100, improve the heat dissipation performance of the stator structure 100, and reduce the heat dissipation of the stator structure 100. temperature rise.

Further, the heat dissipation portion 121 is a heat dissipation groove or a heat dissipation protrusion. That is to say, heat dissipation grooves or heat dissipation protrusions can be provided on the annular inner wall of the injection molded part 120. Both the heat dissipation grooves and the heat dissipation protrusions can increase the surface area of the annular inner wall of the injection molded part 120, thereby increasing the heat dissipation area of the injection molded part 120. , improve the heat dissipation performance of the stator structure 100, and reduce the temperature rise of the stator structure 100. Moreover, the heat dissipation part 121 of the present invention is not limited to the heat dissipation groove and the heat dissipation protrusion, and the heat dissipation part 121 also includes other structures that can increase the heat dissipation area by adding or removing materials on the inner wall of the injection molded part 120 . Referring to FIG. 2 , in an embodiment of the present invention, the heat dissipation portion 121 is a heat dissipation groove. Referring to FIG. 3 , in another embodiment of the present invention, the heat dissipation portion 121 is a heat dissipation protrusion.

As a possible implementation manner, the number of the heat dissipation parts 121 is at least two, and the at least two heat dissipation parts 121 are disposed on the annular inner wall of the injection molded part 120 . At least two heat dissipation parts 121 can significantly increase the heat dissipation area of the injection molded part 120, thereby increasing the heat dissipation area of the stator structure 100, improving the heat dissipation performance of the stator structure 100, reducing the temperature rise of the stator structure 100, and further reducing the temperature rise of the motor.

Further, at least two heat dissipation parts 121 are arranged in a ring shape, a strip shape or a curve shape. That is to say, the heat dissipation part 121 can be arranged on the inner wall of the injection molded part 120 around the axis of the stator core 110, and the heat dissipation part 121 can be arranged on the inner wall of the injection molded part 120 along the axial direction of the stator core 110. 121 can also be arranged on the inner wall of the injection molded part 120 in a curved shape, and the strip-shaped heat dissipation part 121 can also be arranged obliquely on the inner wall of the injection molded part 120 , and so on. In this way, the surface area of the annular inner wall of the injection molded part 120 can be increased, and then the heat dissipation area of the injection molded part 120 can be increased, thereby increasing the heat dissipation area of the stator structure 100, improving the heat dissipation performance of the stator structure 100, reducing the temperature rise of the stator structure 100, and further reducing the motor temperature. temperature rise.

Furthermore, at least two heat dissipation parts 121 are arranged side by side or arranged alternately. That is to say, when the at least two heat dissipation parts 121 are arranged in a ring shape, a strip shape or a curve shape, they can be arranged side by side or staggered. This can make the number of heat dissipation parts 121 on the inner wall of the injection molded part 120 as large as possible, increase the heat dissipation area of the injection molded part 120, improve the heat dissipation performance of the stator structure 100, reduce the temperature rise of the stator structure 100, and then reduce the temperature rise of the motor .

When the heat dissipation parts 121 are small holes or protrusions, at least two heat dissipation parts 121 are arranged in rows and columns or arranged in a dislocation manner. This can also increase the heat dissipation area of the injection molded part 120, improve the heat dissipation performance of the stator structure 100, reduce the temperature rise of the stator structure 100, and further reduce the temperature rise of the motor.

Still further, the sum of the cross-sectional areas of the at least two heat dissipation parts 121 is 40%-80% of the surface area of the inner wall of the injection molded part 120 . This can significantly increase the surface area of the injection molded part 120, thereby increasing the heat dissipation area of the injection molded part 120, improving the heat dissipation effect of the injection molded part 120, effectively solving the problem of temperature rise caused by poor heat dissipation, and reducing the temperature of the stator structure 100, thereby reducing temperature rise of the motor.

In other embodiments of the present utility model, the heat dissipation portion 121 is an uneven surface, and the heat dissipation portion 121 is located on the annular inner wall of the injection molded part 120 . The uneven surface can also increase the surface area of the inner wall of the injection molded part 120, thereby increasing the heat dissipation area of the injection molded part 120, improving the heat dissipation effect of the injection molded part 120, improving the heat dissipation performance of the stator structure 100, and reducing the temperature rise of the stator structure 100. Reduce the temperature rise of the motor.

The utility model also provides a motor, including the stator structure 100 in the above embodiment. The motor of the utility model can reduce the temperature of the motor through the stator structure 100, thereby avoiding the burning of the motor caused by the overheating of the stator structure 100, ensuring the performance of the motor and being convenient to use.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (11)

1. a kind of stator structure, it is characterised in that include：

Stator core (110)；And

Two mouldings (120), respectively injection are arranged at the two ends of the stator core (110), and described moulding (120) are in ring Shape structure setting；Wherein, the radiating part (121) for radiating is provided with moulding (120).

2. stator structure according to claim 1, it is characterised in that radiating part (121) and the moulding (120) It is structure as a whole.

3. stator structure according to claim 2, it is characterised in that the quantity of radiating part (121) is at least two, Radiating part described at least two (121) is arranged on the annular inner wall of the moulding (120).

4. stator structure according to claim 3, it is characterised in that radiating part described at least two (121) is set in a ring Put, bar shaped is arranged or curvilinear setting.

5. stator structure according to claim 4, it is characterised in that radiating part described at least two (121) is arranged side by side Or be crisscross arranged.

6. stator structure according to claim 3, it is characterised in that radiating part described at least two (121) is embarked on journey in column Arrange or shift to install.

7. the stator structure according to any one of claim 3 to 6, it is characterised in that radiating part described at least two (121) Area of section sum for the moulding (120) inwall surface area 40%～80%.

8. stator structure according to claim 7, it is characterised in that described radiating part (121) are for radiating groove or dissipate It is hot raised.

9. stator structure according to claim 2, it is characterised in that described radiating part (121) are rough face, institute State radiating part (121) to be located on the annular inner wall of the moulding (120).

10. stator structure according to claim 1, it is characterised in that also including skeleton (130) and be wound in the skeleton (130) winding (140) on；

Skeleton (130) are arranged in the stator core (110), and the stator is exposed at the two ends of the skeleton (130) The end of iron core (110), and the skeleton (130) contacted with the moulding (120).

11. a kind of motors, it is characterised in that include the stator structure (100) as described in any one of claim 1 to 10.