CN217135321U

CN217135321U - Motor and cooling structure thereof

Info

Publication number: CN217135321U
Application number: CN202220919489.2U
Authority: CN
Inventors: 罗昱; 严川波; 孙鑫
Original assignee: Wolong Electric Group Co Ltd; Shaoxing Oli Wolong Vibration Machinery Co Ltd
Current assignee: Wolong Electric Drive Group Co Ltd; Shaoxing Oli Wolong Vibration Machinery Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-05
Anticipated expiration: 2032-04-19

Abstract

The application discloses motor and cooling structure thereof, the water course shell outside the water course inner shell is located with the cover to the water course inner shell including the tube-shape, form the cooling chamber between water course inner shell and the water course shell, be equipped with the water course head that seals the cooling chamber both ends between water course inner shell and the water course shell, the water course head includes first head and second head, the one end that the water course shell is close to first head is equipped with inlet opening and apopore, inlet opening and apopore set up at the lateral wall of water course shell relatively, still be equipped with the water conservancy diversion strip that extends to second head direction by first head between water course inner shell and the water course shell, water conservancy diversion strip and second head are apart at a predetermined distance, two water conservancy diversion strips separate the cooling chamber and form inlet chamber and go out the water cavity. The cooling water enters the water inlet cavity from the water inlet, flows to the second sealing head under the guidance of the flow guide strips, flows into the water outlet cavity through the intervals between the flow guide strips and the second sealing head, and finally flows out of the water outlet hole. The cooling water exchanges heat with the inner shell of the water channel, and the purpose of improving the cooling efficiency of the motor is achieved.

Description

Motor and cooling structure thereof

Technical Field

The application relates to the technical field of motors, in particular to a cooling structure. The application also relates to a motor comprising the cooling structure.

Background

The existing vibration motor adopts natural cooling, namely, the heat exchange between the surface of the motor and the air around the motor is realized, so that the purpose of heat dissipation is achieved. The heat dissipation effect of natural cooling is related to the design of the motor, and once the structure of the motor is determined, the maximum heat dissipation power is also determined. When the motor load rises, the heat production of the motor is greater than the heat dissipation, the temperature of the motor rises, and the motor wire stator can be burnt out after long-time use, so that the service life of the motor is influenced.

Therefore, how to increase the heat dissipation power of the vibration motor is a technical problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cooling structure, it forms the cooling chamber through water course inner shell, water course shell and water course head, has set up the guide plate guide rivers in the cooling chamber and has flowed, and the in-process that the cooling water flows along the cooling chamber exchanges heat with the water course inner shell to the radiating power of motor has been improved. It is another object of the present application to provide an electric machine including the cooling structure described above.

In order to achieve the purpose, the application provides a cooling structure, locate the water course shell outside the water course inner shell including the water course inner shell of tube-shape and cover, form the cooling chamber between water course inner shell and the water course shell, be equipped with the water course head that is used for sealing the cooling chamber both ends between water course inner shell and the water course shell, the water course head includes first head and second head, the one end that the water course shell is close to first head is equipped with inlet opening and apopore, inlet opening and apopore set up at the lateral wall of water course shell relatively, still be equipped with the water conservancy diversion strip that extends to second head direction by first head between water course inner shell and the water course shell, water conservancy diversion strip and second head are apart at a preset distance, two water conservancy diversion strips separate the cooling chamber and form inlet chamber and play water cavity.

In some embodiments, the water channel inner shell and the water channel outer shell are arranged in a horizontal direction, the water inlet hole is located at the lower side of the water channel outer shell, the water outlet hole is located at the upper side of the water channel outer shell, and the two flow guide strips are parallel to the axis of the water channel inner shell.

In some embodiments, the two flow guide strips and the axis of the inner shell of the water channel are located in the same horizontal plane.

In some embodiments, one end of the first sealing head, which is far away from the second sealing head, is provided with a fixing part extending outwards in the radial direction, and the fixing part is provided with a fixing hole.

In some embodiments, the water channel further comprises an annular flange lug, an inner ring of the flange lug is fixedly connected with the middle of the water channel inner shell, the water channel outer shell comprises a first outer shell positioned between the first sealing head and the flange lug and a second outer shell positioned between the flange lug and the second sealing head, a flow channel communicated with cooling cavities on two sides of the flange lug is arranged in the flange lug, and two ends of the flow guide strip are respectively connected with the first sealing head and the flange lug in a sealing mode.

In some embodiments, the flow passages are arranged parallel to the axis of the flange tab.

In some embodiments, the flow passages are multiple and evenly distributed along the circumferential direction of the flange lug.

In some embodiments, the flange tabs have a radially outwardly extending connecting portion provided with a connecting hole.

The application also provides a motor comprising any one of the above cooling structures.

The application provides a cooling structure, locate the water course shell in the water course inner shell outside including the water course inner shell of tube-shape and cover, form the cooling chamber between water course inner shell and the water course shell, be equipped with the water course head that is used for sealing the cooling chamber both ends between water course inner shell and the water course shell, the water course head includes first head and second head, the one end that the water course shell is close to first head is equipped with inlet opening and apopore, inlet opening and apopore set up at the lateral wall of water course shell relatively, still be equipped with the water conservancy diversion strip that extends to second head direction by first head between water course inner shell and the water course shell, water conservancy diversion strip and second head are apart from predetermineeing the distance, two water conservancy diversion strips separate the cooling chamber and form inlet chamber and play water cavity.

The cooling water enters the water inlet cavity from the water inlet, flows to the second sealing head under the guidance of the flow guide strips, flows into the water outlet cavity through the intervals between the flow guide strips and the second sealing head, and finally flows out of the water outlet hole. The cooling water flows in-process and water course inner shell heat transfer, reaches the purpose that improves motor cooling efficiency.

The present application also provides a motor including the above-described cooling mechanism, and has the above-described advantages.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of a cooling structure provided herein;

FIG. 2 is a cross-sectional view of the cooling structure of FIG. 1;

fig. 3 is a schematic structural view of a cooling cavity in the cooling structure of fig. 1.

Wherein the reference numerals in fig. 1 to 3 are:

the water channel comprises a water channel inner shell 1, a water channel end enclosure 2, a water channel outer shell 3, a flow guide strip 4, a flange lug 5, a first end enclosure 21, a second end enclosure 22, a water inlet hole 31, a water outlet hole 32, a first outer shell 33, a second outer shell 34 and a flow channel 51.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a cooling structure provided in the present application; FIG. 2 is a cross-sectional view of the cooling structure of FIG. 1; fig. 3 is a schematic structural view of a cooling cavity in the cooling structure of fig. 1.

The cooling structure that this application provided is used for in the motor, can regard as the shell use of motor. As shown in fig. 1, the cooling structure includes a waterway inner case 1 and a waterway outer case 3, both of which are cylindrical. The diameter of the water channel outer shell 3 is larger than that of the water channel inner shell 1, the water channel outer shell is sleeved on the outer side of the water channel inner shell 1, and the water channel outer shell and the water channel inner shell are coaxially arranged. A cooling cavity surrounding the waterway inner shell 1 is formed between the waterway inner shell 1 and the waterway outer shell 3. The cooling structure further comprises a water-cooling end socket which is annular and arranged between the water channel inner shell 1 and the water channel outer shell 3. The water channel inner shell 1 and the water channel outer shell 3 are both connected with the water-cooling end sockets in a sealing mode, and therefore the two ends of the cooling cavity are sealed. The water channel inner shell 1 can be made of standard seamless steel pipes, the water channel outer shell 3 can be formed by curling steel plates, the processing mode is low in cost, and a user can select the processing modes of the water channel inner shell 1 and the water channel outer shell 3 according to needs without limitation.

The two water channel end enclosures 2 are respectively a first end enclosure 21 and a second end enclosure 22, and one end of the water channel shell 3 close to the first end enclosure 21 is provided with a water inlet hole 31 and a water outlet hole 32. The inlet opening 31 and the outlet opening 32 are provided at two opposite positions on the side wall of the waterway housing 3. Still be equipped with water conservancy diversion strip 4 between water course inner shell 1 and the water course shell 3, water course inner shell 1, water course shell 3 and first head 21 all with water conservancy diversion strip 4 sealing connection. The diversion strips 4 extend from the first seal head 21 to the second seal head 22 to a preset distance away from the second seal head 22. The two guide strips 4 separate the cooling cavity to form a water inlet cavity and a water outlet cavity, and the water inlet cavity and the water outlet cavity are communicated through the space between the guide strips 4 and the second seal head 22. The inlet opening 31 is located in the inlet chamber and the outlet opening 32 is located in the outlet chamber. The water inlet hole 31 and the water outlet hole 32 can be connected to a water supply pipe and a water return pipe of a cooling water system, respectively, and the structure of the cooling water system can refer to the prior art and is not described herein again. The cooling water flows to the second sealing head 22 after entering the water inlet cavity, then passes through the space between the flow guide strip 4 and the second sealing head 22 to enter the water outlet cavity, and finally passes through the water outlet cavity to flow out of the water outlet hole 32. The cooling water exchanges heat with the water channel inner shell 1 in the flowing process, and the heat dissipation power is improved.

In some embodiments, the waterway inner housing 1 and the waterway outer housing 3 are both disposed in a horizontal direction. The inlet opening 31 is located the downside of water course shell 3, and apopore 32 is located the upside of water course shell 3, and the cavity appears in the cooling chamber can be avoided to the cooling water from bottom to top flow. The two guide strips 4 are arranged parallel to the axis of the inner shell 1 of the water channel, so that the cooling water flows in the water inlet cavity and the water outlet cavity along the horizontal direction.

In some embodiments, the two flow guide strips 4 and the axis of the inner shell 1 of the water channel are located in the same horizontal plane. The volumes of the water inlet cavity and the water outlet cavity are equal, so that the heat exchange areas of the upper side and the lower side of the water channel inner shell 1 are equal, the water flow speed is improved, and the temperature uniformity of the water channel inner shell 1 is improved. Of course, the user may set the volumes of the inlet chamber and the outlet chamber according to the requirement, for example, the volume of the inlet chamber is smaller than the volume of the outlet chamber, which is not limited herein.

In some embodiments, an end of the first sealing head 21 away from the second sealing head 22 is provided with a fixing portion, and the fixing portion extends outward in a radial direction of the first sealing head 21. The fixed part is provided with a fixed hole, and the fixed part can be connected with components such as an end cover of the motor through the fixed hole.

In some embodiments, the housing of the motor may also be provided with a connection structure for connecting to a rack or the like. Thus, the cooling structure also comprises an annular flange lug 5. As shown in figure 1, the flange lug 5 is annular, and the inner ring of the flange lug 5 is fixedly connected with the middle part of the water channel inner shell 1. The outer diameter of the flange lug 5 is larger than or equal to the diameter of the water channel shell 3, the water channel shell 3 comprises a first shell 33 and a second shell 34, the first shell 33 is located between the first sealing head 21 and the flange lug 5, and the second shell 34 is located between the flange lug 5 and the second sealing head 22. The flange lug 5 divides the cooling cavity into two sections, and a flow passage 51 is arranged in the flange lug 5 and is used for communicating the two sections of the cooling cavity. The two ends of the flow guide strip 4 are respectively in sealing connection with the first sealing head 21 and the flange lug 5, so that a cooling cavity close to one side of the first sealing head 21 is separated to form a water inlet cavity and a water outlet cavity, the water inlet cavity and the water outlet cavity are communicated with a cooling cavity on the other side of the flange lug 5 through the flow channel 51, and the cooling water is prevented from flowing in the cooling cavity close to one side of the first sealing head 21 and affecting heat exchange of the cooling cavity close to one side of the second sealing head 22. Of course, the user may also dispose a baffle in the cooling chamber near the second head 22 according to the requirement, and is not limited herein.

In some embodiments, the flow passage 51 is multiple. As shown in fig. 3, all the flow passages 51 are uniformly distributed in the circumferential direction of the flange 5. The distribution mode can improve the uniformity of heat exchange of the cooling structure in the circumferential direction, and certainly, a user can set the distribution mode of the flow channels 51 according to needs, which is not limited herein. All the runners 51 are arranged in parallel to the axis of the flange joint 5, and the runners 51 can be formed by drilling holes in the flange joint 5 when the runners 51 are machined, so that the machining difficulty is low. Of course, the user may set the structure of the flow passage 51 according to the need, which is not limited herein.

In some embodiments, the flange tabs 5 have a radially outwardly extending connection portion, which may be embodied as a flange provided with a connection hole. The flange plate can be connected with equipment such as a frame through a connecting hole and the like. Of course, the connecting portion may be a connecting lug, and is not limited herein.

The application also provides a motor comprising any one of the above cooling structures. The cooling structure can be used as an outer shell of the motor, and the stator is fixed on the inner side of the water channel inner shell 1; the structure of other parts of the motor can refer to the prior art, and is not described in detail herein.

In this embodiment, set up the cooling chamber among motor and the cooling structure, set up the guide plate in the cooling chamber, thereby the cooling water flows in the cooling chamber and carries out the heat transfer to the within range that whole cooling structure covered, has improved the heat dissipation power of motor, avoids the motor high temperature, has prolonged the life of motor.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The motor and the cooling structure thereof provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A cooling structure is characterized by comprising a cylindrical water channel inner shell (1) and a water channel outer shell (3) sleeved outside the water channel inner shell (1), wherein a cooling cavity is formed between the water channel inner shell (1) and the water channel outer shell (3), water channel end enclosures (2) used for sealing two ends of the cooling cavity are arranged between the water channel inner shell (1) and the water channel outer shell (3), each water channel end enclosure (2) comprises a first end enclosure (21) and a second end enclosure (22), one end, close to the first end enclosure (21), of the water channel outer shell (3) is provided with a water inlet hole (31) and a water outlet hole (32), the water inlet hole (31) and the water outlet hole (32) are arranged on the side wall of the water channel outer shell (3) oppositely, a flow guide strip (4) extending from the first end enclosure (21) to the direction of the second end enclosure (22) is further arranged between the water channel inner shell (1) and the water channel outer shell (3), the diversion strips (4) are away from the second seal head (22) by a preset distance, and the two diversion strips (4) separate the cooling cavity to form a water inlet cavity and a water outlet cavity.

2. The cooling structure according to claim 1, wherein the water channel inner casing (1) and the water channel outer casing (3) are arranged in a horizontal direction, the water inlet hole (31) is located at a lower side of the water channel outer casing (3), the water outlet hole (32) is located at an upper side of the water channel outer casing (3), and both of the flow guide strips (4) are parallel to an axis of the water channel inner casing (1).

3. The cooling structure according to claim 2, characterized in that the axes of the two flow guide strips (4) and the inner channel shell (1) are located in the same horizontal plane.

4. The cooling structure according to claim 1, characterized in that the end of the first head (21) remote from the second head (22) is provided with a radially outwardly extending fixing portion provided with a fixing hole.

5. The cooling structure according to any one of claims 1 to 4, further comprising an annular flange (5), wherein an inner ring of the flange (5) is fixedly connected with the middle of the water channel inner shell (1), the water channel outer shell (3) comprises a first outer shell (33) located between the first sealing head (21) and the flange (5) and a second outer shell (34) located between the flange (5) and the second sealing head (22), a flow channel (51) communicating cooling cavities on two sides of the flange (5) is arranged in the flange (5), and two ends of the flow guide strip (4) are respectively in sealing connection with the first sealing head (21) and the flange (5).

6. The cooling structure according to claim 5, wherein the flow passage (51) is provided parallel to an axis of the flange tab (5).

7. The cooling structure according to claim 5, wherein the flow passage (51) is a plurality of flow passages and is uniformly distributed along a circumferential direction of the flange (5).

8. Cooling arrangement according to claim 5, characterized in that the flange lug (5) has a connecting portion extending radially outwards, which connecting portion is provided with a connecting hole.

9. An electric machine characterized by comprising the cooling structure of any one of claims 1 to 8.