CN219107203U

CN219107203U - Heat dissipation end cover and hub motor

Info

Publication number: CN219107203U
Application number: CN202223161062.XU
Authority: CN
Inventors: 王成业
Original assignee: Houhua Tianjin Power Technology Co ltd
Current assignee: Houhua Tianjin Power Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-30
Anticipated expiration: 2032-11-28

Abstract

The application provides a heat dissipation end cover and a hub motor, wherein the heat dissipation end cover comprises an end cover main body and a cover plate; the inner side of the end cover main body is provided with a first groove, the cover plate covers the opening of the first groove to form a liquid storage cavity, the liquid storage cavity is used for containing cooling liquid, the outer side of the end cover main body is also provided with a liquid injection hole, and the liquid injection hole is communicated with the liquid storage cavity. In this application, through set up first recess in the inboard of end cover main part to set up the apron of lid in the opening part of first recess, in order to form the stock solution chamber that is used for accomodating the coolant liquid, make the wheel hub motor dispel the heat with the mode of liquid cooling, in order to promote radiating efficiency, on the other hand, the outside of end cover main part still is equipped with the notes liquid hole with the stock solution chamber intercommunication, is convenient for pour into the coolant liquid into the stock solution chamber.

Description

Heat dissipation end cover and hub motor

Technical Field

The application relates to the technical field of hub motors, in particular to a heat dissipation end cover.

Background

The hub motor mainly comprises an end cover, a hub, magnetic sheets and a stator coil, and can generate a large amount of heat in the actual operation process, so that a heat dissipation strip is reserved on the end cover for realizing cooling, the heat dissipation area of the end cover is increased, the heat generated by the operation of the hub motor is diffused, the area of the heat dissipation strip is limited, and the heat which can be released is limited.

Therefore, it is necessary to provide a heat dissipating end cap and an in-wheel motor to enhance the heat dissipating effect.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a heat dissipation end cover and a hub motor so as to improve the heat dissipation effect of the hub motor.

According to an embodiment of the present utility model, there is provided a first aspect of: a heat-dissipating end cap comprising an end cap body and a cover plate; the inner side of the end cover main body is provided with a first groove, the cover plate covers the opening of the first groove to form a liquid storage cavity, the liquid storage cavity is used for containing cooling liquid, the outer side of the end cover main body is also provided with a liquid injection hole, and the liquid injection hole is communicated with the liquid storage cavity.

Further, the first groove is an annular groove, and the cover plate is configured to be annular.

Further, a plurality of second grooves are formed in one side, away from the first grooves, of the cover plate, and the second grooves are distributed on the cover plate along the circumferential direction.

Further, the length direction of the second groove is directed to the center of the cover plate.

Further, the heat radiation end cover also comprises an outer ring part and an inner ring part,

the outer ring part and the inner ring part are arranged on the inner side of the end cover main body, and the outer ring part and the inner ring part form two side walls of the first groove.

Further, the end cover main body further comprises an outer ring connecting portion located on the inner side, and the outer ring connecting portion is connected with the side wall of the end cover main body and the outer ring portion.

Further, the end cover main body further comprises a shaft barrel positioned in the middle and an inner ring connecting part positioned on the inner side, and the inner ring connecting part is connected with the shaft barrel and the inner ring part.

Further, the end cover main body is fixedly connected with the cover plate through screws, and screw holes for installing the screws are formed in the inner ring portion, the outer ring portion and the second groove.

Further, the heat dissipation end cover further comprises a boss arranged on the outer side of the end cover main body and a sealing piece extending into the liquid injection hole, the liquid injection hole is arranged on the boss, the sealing piece is in threaded connection with the liquid injection hole, and the heat dissipation end cover further comprises a silica gel gasket which is arranged on the table top of the boss and is in contact with the sealing piece.

In one aspect, an in-wheel motor is provided that may include the heat dissipating end cap of the above possible embodiments.

The utility model has the following beneficial effects:

through set up first recess in the inboard of end cover main part to set up the apron of lid in the opening part of first recess, with the liquid storage chamber that forms and be used for accomodating the coolant liquid, make the wheel hub motor dispel the heat with the mode of liquid cooling, in order to promote radiating efficiency, on the other hand, the outside of end cover main part still is equipped with the notes liquid hole with liquid storage chamber intercommunication, is convenient for pour into the coolant liquid into to the liquid storage chamber.

Drawings

FIG. 1 is a schematic diagram of a heat dissipating end cap according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a heat dissipating end cap according to an embodiment of the present utility model;

fig. 3 is an enlarged view at a in fig. 2.

Reference numerals: 10. an end cap body; 11. a first groove; 12. a liquid injection hole; 13. an inner ring portion; 14. an outer ring portion; 15. an outer ring connection portion; 16. an inner ring connecting part; 17. a shaft cylinder; 18. a screw hole; 19. a boss; 20. a cover plate; 21. a second groove; 30. a screw; 40. a seal; 50. a silica gel pad;

Detailed Description

In order to better understand the technical solutions in the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It is noted that when an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" is two or more, unless explicitly defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the scope of the present disclosure, since any structural modifications, proportional changes, or dimensional adjustments made by those skilled in the art should not be made in the present disclosure without affecting the efficacy or achievement of the present disclosure.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a heat dissipating end cover, which includes an end cover body 10 and a cover plate 20. Referring to fig. 1, the inside of the cap body 10 is provided with a first groove 11. The cover plate 20 covers the opening of the first groove 11 to form a liquid storage cavity, and the liquid storage cavity is used for containing cooling liquid, so that the hub can dissipate heat in a liquid cooling mode, and the cooling liquid absorbs internal heat and then transfers the heat to the outer surface of the end cover main body 10. In order to facilitate injection of the coolant, referring to fig. 2, the outer side of the cap body 10 is further provided with a liquid injection hole 12. Wherein the liquid injection hole 12 is communicated with the liquid storage cavity.

In one embodiment, to make the liquid cooling effect better, the first groove 11 is an annular groove, and the cover plate 20 is configured in an annular shape. In this embodiment, the annular configuration of the first recess 11 and the cover 20 provides an annular space for the reservoir to circulate the cooling fluid therein in the inner circumferential direction.

In one embodiment, referring to fig. 2, a plurality of second grooves 21 are disposed on a side of the cover plate 20 facing away from the first grooves 11, and the plurality of second grooves 21 are distributed on the cover plate 20 along a circumferential direction, wherein the second grooves 21 are all elongated in configuration, and a length direction of the second grooves is directed toward a center of the cover plate 20.

In this embodiment, when the motor generates heat during operation, the second groove 21 is configured to act like a fan blade, thereby accelerating heat dissipation.

In one embodiment, the heat dissipating end cover further includes an outer ring portion 14 and an inner ring portion 13, wherein the outer ring portion 14 and the inner ring portion 13 are disposed on the inner side of the end cover body 10, and the outer ring portion 14 and the inner ring portion 13 form two sidewalls of the first groove 11. Specifically, referring to fig. 1, the outer ring portion 14 is located at the outer ring of the inner ring portion 13.

In one embodiment, referring to fig. 1, to enhance the structural strength of the outer ring portion 14, the end cap body 10 further includes an outer ring connecting portion 15 located at the inner side, and the outer ring connecting portion 15 connects the sidewall of the end cap body 10 with the outer ring portion 14.

In one embodiment, the end cap body 10 further includes a shaft barrel 17, the shaft barrel 17 being located in the middle of the end cap. To enhance the structural strength of the inner ring portion 13, referring to fig. 1, the end cap body 10 further includes an inner ring connecting portion 16 located inside, the inner ring connecting portion 16 connecting the shaft tube 17 and the inner ring portion 13.

In one embodiment, the end cap body 10 is fixedly connected to the cover plate 20 by means of screws 30, wherein the inner ring portion 13, the outer ring portion 14 and the second recess 21 are each provided with screw holes 18 for mounting screws 30.

In a specific embodiment, referring to fig. 2 and 3, the heat dissipating end cap further includes boss 19, seal 40, and silicone gasket 50. The boss 19 is disposed at the outer side of the end cover main body 10, the sealing element 40 extends into the liquid injection hole 12 for sealing the liquid storage cavity, the liquid injection hole 12 is disposed on the boss 19, the sealing element 40 is in threaded connection with the liquid injection hole 12, that is, the sealing element 40 can be mounted in the liquid injection hole 12 or dismounted from the liquid injection hole 12 through rotation, the silica gel gasket 50 is disposed on the table top of the boss 19, and one surface of the silica gel gasket 50 facing away from the boss 19 contacts with the sealing element 40.

In one embodiment, an in-wheel motor is provided having a heat dissipating end cap as mentioned in any one of the possible embodiments above.

Therefore, the first groove 11 is formed in the inner side of the end cover main body 10, the cover plate 20 is arranged at the opening of the first groove 11, so that a liquid storage cavity for containing cooling liquid is formed, the hub motor can radiate heat in a liquid cooling mode, heat radiation efficiency is improved, and on the other hand, the liquid injection hole 12 communicated with the liquid storage cavity is further formed in the outer side of the end cover main body 10, so that cooling liquid can be conveniently injected into the liquid storage cavity.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The heat dissipation end cover is characterized by comprising an end cover main body and a cover plate; the inner side of the end cover main body is provided with a first groove, the cover plate covers the opening of the first groove to form a liquid storage cavity, the liquid storage cavity is used for containing cooling liquid, the outer side of the end cover main body is also provided with a liquid injection hole, and the liquid injection hole is communicated with the liquid storage cavity.

2. The heat dissipating end cap of claim 1, wherein the first groove is an annular groove and the cover plate is configured as an annular shape.

3. The heat dissipating end cap of claim 1, wherein a plurality of second grooves are provided on a side of the cover plate facing away from the first grooves, and the plurality of second grooves are circumferentially distributed on the cover plate.

4. The heat dissipating end cap of claim 3, wherein the length direction of the second groove is directed toward the center of the cover plate.

5. The heat dissipating end cap of claim 3, further comprising an outer ring portion and an inner ring portion, wherein the outer ring portion and the inner ring portion are disposed on the inner side of the end cap body, and wherein the outer ring portion and the inner ring portion form two sidewalls of the first groove.

6. The heat dissipating end cap of claim 5, wherein the end cap body further comprises an inner outer ring connecting portion connecting the side wall of the end cap body with the outer ring portion.

7. The heat dissipating end cap of claim 5, wherein the end cap body further comprises a shaft tube in the middle and an inner ring connecting portion in the inner side, the inner ring connecting portion connecting the shaft tube and the inner ring portion.

8. The heat dissipating end cap of claim 5, wherein the end cap body is fixedly connected to the cover plate by screws, and the inner ring portion, the outer ring portion, and the second groove are each provided with screw holes for mounting the screws.

9. The heat dissipating end cap of claim 1, further comprising a boss disposed on an outer side of the end cap body and a seal member extending into the liquid injection hole, the liquid injection hole being disposed on the boss, the seal member being threadably coupled to the liquid injection hole, the heat dissipating end cap further comprising a silicone gasket disposed on a top of the boss and in contact with the seal member.

10. An in-wheel motor comprising a heat dissipating end cap as defined in any one of claims 1-9.