Motor stator chip heat dissipation device

Abstract

The utility model discloses a motor stator chip heat radiation device, which comprises a stator body and a casing, a plurality of heat-conducting fins are arranged on the outer edge of the casing along the circumferential direction at equal intervals, a plurality of heat radiation fins are uniformly arranged on the outer surface of each heat-conducting fin, and the inner surface of each heat-conducting fin is connected with a heat-conducting strip. The end, penetrating into the machine shell, of each heat conduction strip is connected with a heat conduction head, heat conduction grooves in one-to-one correspondence with the heat conduction heads are formed in the side wall of the outer circumference of the stator body, and the heat conduction heads are embedded in the heat conduction grooves and tightly attached to the stator body. The heat conduction head is tightly attached to the stator body, the heat conduction head is made of the metal material with the heat conduction coefficient higher than that of a machine shell, the heat conduction efficiency between the heat conduction head and the stator body is improved, then heat is conducted to the heat conduction pieces through the heat conduction strips, and finally heat is rapidly dissipated into air through the heat dissipation fins. Therefore, heat generated in the motor can be timely taken away and dissipated, and the service life of the motor can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a heat dissipation device for a motor stator chip. Background Technique

[0002] The existing motor includes a motor housing, a stator and a rotor installed in the motor housing. Among them, the stator is relatively fixed in the motor housing. During the operation of the motor, a large amount of heat will be generated inside.

[0003] The traditional heat dissipation method inside the motor is to set heat dissipation ribs on the outer wall of the motor housing to increase the heat dissipation area in contact with the external air. However, due to the reduction of the heat conduction efficiency between the stator and the motor housing, the generated heat is difficult to be taken away in time, thus affecting the service life of the motor.

[0004] Therefore, we propose a heat dissipation device for a motor stator chip to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat dissipation device for a motor stator chip to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A heat dissipation device for a motor stator chip includes a stator body and a motor housing. A plurality of heat conduction sheets are equidistantly arranged on the outer circumference of the motor housing. A plurality of heat dissipation fins are evenly arranged on the outer surface of each heat conduction sheet. A heat conduction strip is connected to the inner surface of each heat conduction sheet. One end of the heat conduction strip penetrating into the interior of the motor housing is connected with a heat conduction head. And heat conduction grooves corresponding to the heat conduction heads one by one are formed on the outer circumferential side wall of the stator body. The heat conduction head is embedded in the heat conduction groove and is in close fit with the stator body.

[0008] In a further embodiment, a plurality of through grooves are also evenly arranged on the outer circumferential side wall of the stator body, and the through grooves penetrate through both ends of the stator body.

[0009] In a further embodiment, a through groove for the heat conduction strip to penetrate is formed on the motor housing, and heat conduction sealant is filled in the connection gap between the heat conduction strip and the through groove and in the connection gap between the heat conduction sheet and the motor housing.

[0010] In a further embodiment, heat conduction silicone grease is applied between the contact surfaces of the heat conduction head and the heat conduction groove and between the contact surfaces of the stator body and the motor housing.

[0011] In a further embodiment, the contact surfaces of the heat conduction head and the heat conduction groove with each other adopt a wavy structure.

[0012] In a further embodiment, the outer surface of the heat dissipation fin adopts a wavy structure.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, by arranging the heat conducting head in close contact with the stator body, and using a metal material with a higher heat conduction coefficient than that of the machine shell for the heat conducting head, the heat conduction efficiency between the heat conducting head and the stator body is increased. Then, heat is conducted to the heat conducting sheet through the heat conducting strip, and finally, the heat is quickly dissipated into the air through the heat dissipating fins. Thus, the heat generated in the motor can be taken away and dissipated in time, which is beneficial to extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram after removing part of the machine shell after the present utility model is assembled with the motor;

[0016] Figure 2 It is a schematic external structure diagram after the present utility model is assembled with the motor;

[0017] Figure 3 For the present utility model Figure 1 It is a schematic diagram of a partial enlarged structure at position A in the present utility model.

[0018] In the figure: 1, stator body; 11, heat conducting groove; 12, through groove; 2, machine shell; 21, through slot; 3, heat conducting sheet; 4, heat dissipating fin; 5, heat conducting strip; 6, heat conducting head; 7, heat conducting sealant; 8, heat conducting silicone grease. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1-2 , a heat dissipation device for a motor stator chip, including a stator body 1 and a housing 2. The stator body 1 is installed inside the housing 2. A plurality of heat conducting fins 3 are equidistantly arranged along the outer circumference of the housing 2. A plurality of heat dissipation fins 4 are evenly arranged on the outer surface of each heat conducting fin 3 for accelerating heat dissipation into the air. A heat conducting strip 5 is connected to the inner surface of each heat conducting fin 3. One end of the heat conducting strip 5 penetrating into the interior of the housing 2 is connected to a heat conducting head 6. And heat conducting grooves 11 corresponding to the heat conducting heads 6 one by one are formed on the outer circumferential side wall of the stator body 1. The heat conducting heads 6 are embedded in the heat conducting grooves 11 and are in close fit with the stator body 1. The heat conducting heads 6, heat conducting strips 5, heat conducting fins 3 and heat dissipation fins 4 are made of copper, aluminum or copper-aluminum alloy materials, and have a higher heat conduction coefficient compared with the traditional material of the housing 2.

[0023] Please refer to Figure 1 , in order to facilitate heat dissipation at both ends of the stator body 1, a plurality of through grooves 12 are evenly arranged on the outer circumferential side wall of the stator body 1, and the through grooves 12 penetrate through both ends of the stator body 1. Some motors for accelerating heat dissipation are internally provided with fans. Through the through grooves 12, it is convenient for the air flow to circulate between both ends of the stator body 1 when the fan blows air, further improving the heat dissipation effect on the stator body 1.

[0024] Please refer to Figure 3 , considering that when the parts for heat dissipation are installed with the stator body 1 or the housing 2, there are likely to be gaps on the connection surfaces, thus affecting the heat conduction efficiency. A through groove 21 for the heat conducting strip 5 to penetrate is formed on the housing 2. And heat conducting sealant 7 is filled in the connection gaps between the heat conducting strip 5 and the through groove 21 and between the heat conducting fin 3 and the housing 2. After filling the gaps with the heat conducting sealant 7, not only can the sealing effect at the connection be improved, but also a better heat conduction effect can be ensured. Similarly, heat conducting grease 8 is applied between the contact surfaces of the heat conducting head 6 and the heat conducting groove 11 and between the contact surfaces of the stator body 1 and the housing 2. After filling the gaps with the heat conducting grease 8, a better heat conduction effect is ensured.

[0025] Please refer to Figure 3, in order to further improve the heat conduction and heat dissipation effects, the contact surfaces between the heat conduction head 6 and the heat conduction groove 11 are arranged to adopt a wavy structure, which is beneficial to increasing the contact area between the heat conduction head 6 and the heat conduction groove 11, thereby improving the heat conduction rate. And the outer surface of the heat dissipation fin 4 is arranged to adopt a wavy structure, which is beneficial to increasing its contact area with the air, thereby improving the heat dissipation rate.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0027] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat dissipation device for a motor stator chip, comprising a stator body (1) and a housing (2), characterized in that: A plurality of heat-conducting plates (3) are equidistantly arranged along the circumference of the outer side of the housing (2); a plurality of heat-dissipating fins (4) are evenly arranged on the outer surface of each heat-conducting plate (3); a heat-conducting strip (5) is connected to the inner surface of each heat-conducting plate (3); one end of the heat-conducting strip (5) that penetrates the interior of the housing (2) is connected to a heat-conducting head (6); and a heat-conducting groove (11) corresponding to the heat-conducting head (6) is opened on the outer circumferential side wall of the stator body (1); the heat-conducting head (6) is embedded in the heat-conducting groove (11) and is tightly fitted to the stator body (1).

2. The motor stator chip heat dissipation device according to claim 1, characterized in that: A plurality of through slots (12) are evenly arranged on the outer circumferential side wall of the stator body (1), and the through slots (12) penetrate through both ends of the stator body (1).

3. The motor stator chip heat dissipation device according to claim 1, characterized in that: The housing (2) is provided with a through slot (21) for the heat conducting strip (5) to pass through, and the connecting gap between the heat conducting strip (5) and the through slot (21) and the connecting gap between the heat conducting sheet (3) and the housing (2) are filled with heat conducting sealant (7).

4. The motor stator chip heat dissipation device according to claim 1, characterized in that: Thermal conductive silicone grease (8) is applied between the contact surfaces of the thermal conductive head (6) and the thermal conductive groove (11) and between the contact surfaces of the stator body (1) and the housing (2).

5. The motor stator chip heat dissipation device according to claim 1, characterized in that: The contact surfaces between the heat conducting head (6) and the heat conducting groove (11) have a wave-shaped structure.

6. The motor stator chip heat dissipation device according to claim 1, characterized in that: The outer surface of the heat dissipation fin (4) adopts a wavy structure.

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