CN114598094A

CN114598094A - Casing and motor

Info

Publication number: CN114598094A
Application number: CN202210277873.1A
Authority: CN
Inventors: 唐志伟; 姜月明; 贾金信; 伍永树
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-06-07
Anticipated expiration: 2042-03-21

Abstract

The invention provides a casing and a motor, wherein the casing comprises: the cooling medium cooling device comprises an outer wall and an inner wall, wherein a flow channel region for cooling medium to flow is arranged between the outer wall and the inner wall, the flow channel region is communicated with an inflow port and an outflow port, the inflow port and the outflow port are both arranged in the middle of the shell in the axial direction and are arranged at intervals along the circumferential direction of the shell, a flow guide structure is arranged in the flow channel region, the flow guide structure can guide the cooling medium in the flow channel region to two ends of the shell in the axial direction from the inflow port and flow to the outflow port along a half circle of the shell in the circumferential direction, two ends of the shell of the motor can be cooled in a balanced manner, and the cooling effect of the motor is improved; in addition, the cooling medium flows to the outlet from two opposite directions of the inlet in the circumferential direction of the machine shell, the flows in the two directions are added into a circle, the length of the circulation channel is shortened under the condition that the complexity of the circulation channel is the same, the cooling efficiency of the motor is improved, and the performance of the motor is improved.

Description

Casing and motor

Technical Field

The invention belongs to the technical field of motor heat dissipation structures, and particularly relates to a shell and a motor.

Background

The cooling flow channel of the existing water-cooled motor is usually an axial flow channel or a spiral flow channel, the spiral flow channel is arranged inside a motor shell, a condensing medium enters from a flow channel inlet, flows through the whole shell along the internal flow channel, and flows out from a flow channel outlet to take away heat of the shell. Traditional condensation runner cooling path is longer, mostly is from one end flow direction other end moreover, causes the motor front and back end temperature unbalance, can influence motor casing life-span even to a certain extent, has reduced cooling efficiency.

Disclosure of Invention

Therefore, the invention provides a casing and a motor, aiming at solving the technical problem that the traditional condensation flow channel has a longer cooling path and mostly flows from one end to the other end, so that the temperatures of the front end and the rear end of the motor are not balanced.

In order to solve the above problems, the present invention provides a cabinet including: the cooling medium circulation flow guide device comprises an outer wall and an inner wall, wherein a flow channel region for circulation of a cooling medium is arranged between the outer wall and the inner wall, the flow channel region is communicated with a flow inlet and a flow outlet, the flow inlet and the flow outlet are both arranged in the middle of the axial direction of a casing and are arranged at intervals along the circumferential direction of the casing, a flow guide structure is arranged in the flow channel region, the flow guide structure can guide the cooling medium in the flow channel region to the two axial ends of the casing from the flow inlet, and the cooling medium flows to the flow outlet along the circumferential half circle of the casing.

In some embodiments, the flow guide structure includes a plurality of flow guide partitions, and the plurality of flow guide partitions can configure the flow channels in the flow channel region into bent flow channels which are sequentially and alternately bent towards two axial ends of the casing.

In some embodiments, the flow guide structure further includes a partition wall capable of dividing the flow passage region into a plurality of flow passages, each of which is communicated with the inflow port and the outflow port, and capable of guiding the cooling medium in the flow passage region from the inflow port to both ends and a middle portion in an axial direction of the casing and to the outflow port in a circumferential direction of the casing.

In some embodiments, one of the partitions is configured to define a first flow passage with one end of the housing and/or the other partition is configured to define a second flow passage with the other end of the housing.

In some embodiments, the first flow passage and the second flow passage have a size in the axial direction of the casing that gradually decreases along the cooling medium flowing direction.

In some embodiments, the plurality of flow passages further includes a middle flow passage disposed between two axially adjacent partition walls of the casing.

In some embodiments, the dimension of the middle flow passage in the axial direction of the casing gradually increases along the cooling medium flowing direction.

In some embodiments, the first flow passage, the second flow passage and the middle flow passage are two, and when the inflow port and the outflow port are symmetrically arranged in the circumferential direction of the casing, the casing is spread in the circumferential direction thereof, the two first flow passages are symmetrically arranged in the circumferential direction of the casing, the two second flow passages are symmetrically arranged in the circumferential direction of the casing, and the two middle flow passages are symmetrically arranged centering on the inflow port or the outflow port.

In some embodiments, the size of the inlet and the interfaces of the two first flow channels, the two second flow channels and the two middle flow channels in the radial direction of the casing are all equal, the size of the inlet and the interfaces of the two first flow channels and the two second flow channels in the circumferential direction of the casing is all B, the size of the inlet and the interfaces of the two middle flow channels in the axial direction of the casing is all a, and B > a.

In some embodiments, B is 1.1-1.2A.

In some embodiments, a plurality of flow guide partitions are arranged in each of the first flow passage, the second flow passage and the middle flow passage, and the flow guide partitions can respectively configure the first flow passage, the second flow passage and the middle flow passage into bent flow passages which are sequentially and alternately bent towards two axial ends of the casing.

In some embodiments, the flow guide partitions extend along two axial ends of the casing, each flow guide partition is provided with an overflowing hole, and adjacent overflowing holes are respectively located at different ends of adjacent flow guide partitions; or the adjacent overflowing holes are respectively positioned in the middle and two ends of the adjacent flow guide partitions.

The invention also provides a motor which comprises the casing.

The shell provided by the invention has the following beneficial effects:

the present invention provides a casing, comprising: the cooling medium cooling device comprises an outer wall and an inner wall, wherein a flow channel region for cooling medium to flow is arranged between the outer wall and the inner wall, the flow channel region is communicated with an inflow port and an outflow port, the inflow port and the outflow port are both arranged in the middle of the shell in the axial direction and are arranged at intervals along the circumferential direction of the shell, a flow guide structure is arranged in the flow channel region, the flow guide structure can guide the cooling medium in the flow channel region to two ends of the shell in the axial direction from the inflow port and flow to the outflow port along a half circle of the shell in the circumferential direction, two ends of the shell of the motor can be cooled in a balanced manner, and the cooling effect of the motor is improved; in addition, the cooling medium flows to the outlet from two opposite directions of the inlet in the circumferential direction of the shell, the flows in the two directions are added into a circle, the length of the circulation channel is shortened under the condition that the complexity of the circulation channel is the same, the cooling efficiency of the motor is improved, and the performance of the motor is improved.

In addition, the motor provided by the invention is manufactured based on the casing, and the beneficial effects of the motor refer to the beneficial effects of the casing, which are not described herein in detail.

Drawings

FIG. 1 is a perspective view of a housing according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a media inflow and media outflow connection distribution of the housing of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram of a distribution of media inflow and outflow joints of the housing of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 4 is an expanded view of the structure of the enclosure of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a housing according to an embodiment of the invention;

FIG. 6 is an expanded view of the structure of the housing of FIG. 5 according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a housing according to an embodiment of the invention;

fig. 8 is an expanded view of the structure of the housing of fig. 7 according to the embodiment of the present invention.

The reference numerals are represented as:

2. partitioning and separating; 3. an inflow port; 4. an outflow port; 5. an outer wall; 6. an inner wall; 7. flow guide partition; 8. a first flow passage; 9. a second flow passage; 10. a middle flow passage.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.

Referring to fig. 1-8 in combination, the present invention provides a cabinet comprising: the cooling device comprises an outer wall 5 and an inner wall 6, a flow channel area for cooling medium circulation is arranged between the outer wall 5 and the inner wall 6, the flow channel area is communicated with a flow inlet 3 and a flow outlet 4, the flow inlet 3 and the flow outlet 4 are both arranged in the middle of the axial direction of a machine shell and are arranged along the circumferential direction of the machine shell at intervals, a flow guide structure is arranged in the flow channel area, the flow guide structure can guide the cooling medium in the flow channel area to the two axial ends of the machine shell from the flow inlet 3, and the cooling medium flows to the flow outlet 4 along the circumferential half circle of the machine shell.

The inflow port 3 and the outflow port 4 of the embodiment are both arranged in the middle of the axial direction of the casing and are arranged at intervals along the circumferential direction of the casing, the flow guide structure can guide the cooling medium in the flow passage region from the inflow port 3 to the two axial ends of the casing and flow to the outflow port 4 along the circumferential half circle of the casing, the two axial ends of the casing of the motor can be cooled in a balanced manner, and the cooling effect of the motor is improved; in addition, the cooling medium flows to the outlet 4 from the inlet 3 in two opposite directions in the circumferential direction of the machine shell, the flows in the two directions are added into a circle, the length of the circulation channel is shortened under the condition that the complexity of the circulation channel is the same, the cooling efficiency of the motor is improved, and the performance of the motor is improved.

In some embodiments, the flow guiding structure includes a plurality of flow guiding partitions 7, the number of the flow guiding partitions 7 is multiple, and the plurality of flow guiding partitions 7 can configure the flow channels in the flow channel region into bent flow channels which are sequentially and alternately bent towards two axial ends of the casing.

This embodiment constructs the runner in the runner region into the runner of bending through a plurality of water conservancy diversion wall 7, and the runner of bending is towards the axial first end of casing and second end bending in turn, makes coolant can carry out balanced cooling to the axial both ends of casing, has improved the cooling effect of motor, has promoted the performance of motor.

In some embodiments, the flow guiding structure further comprises a partition wall 2, the partition wall 2 can divide the flow passage region into a plurality of flow passages, each of the flow passages is communicated with the inflow port 3 and the outflow port 4, and the plurality of flow passages can guide the cooling medium in the flow passage region from the inflow port 3 to both ends and the middle of the casing in the axial direction and flow to the outflow port 4 along the circumferential direction of the casing.

The flow rate of the cooling medium in unit time is increased through the plurality of circulation channels, the cooling medium can flow to all positions of the shell more quickly, and the cooling efficiency of the motor is improved; each circulation channel is communicated with the inflow port 3 and the outflow port 4, and the plurality of circulation channels can guide the cooling medium in the flow channel area from the inflow port 3 to the two axial ends and the middle of the casing, so that the cooling medium can cool the two axial ends and the middle of the casing in a balanced manner, and the cooling effect of the motor is improved; each circulation channel can not circulate in a circle along the circumferential direction of the casing, the length of each circulation channel is shortened under the same complex condition of the circulation channels, the cooling efficiency of the motor is improved, and the performance of the motor is improved

In some embodiments, one partition wall 2 is configured with one end face of the casing as a first flow passage 8, and/or one partition wall 2 is configured with the other end face of the casing as a second flow passage 9.

In some embodiments, the dimensions of the first flow passage 8 and the second flow passage 9 in the axial direction of the casing are gradually reduced along the cooling medium circulating direction.

The velocity of flow of the cooling medium at the inlet of the first flow channel 8 and the inlet of the second flow channel 9 in the embodiment is large, the size of the axial direction of the casing is gradually reduced along the flowing direction of the cooling medium, the velocity of flow of the cooling medium at the extreme end (water channel outlet) of the flow channels of the first flow channel 8 and the second flow channel 9 can be increased, because the end part of the winding inside the motor is positioned at the two ends of the axial direction of the casing, the first flow channel 8 and the second flow channel 9 are positioned outside the space of the end part of the winding inside the motor, and in the heating of the motor, the heat generation ratio of the end part winding is large, the velocity of flow of the cooling medium is increased here, the two ends of the casing of the motor in the axial direction can be cooled in a balanced manner, the useful work of heat dissipation is improved, and the cooling effect of the motor is improved.

In some embodiments, the plurality of flow channels further comprises a middle flow channel 10, and the middle flow channel 10 is disposed between two axially adjacent partition walls 2 of the casing.

In some embodiments, the dimension of the middle flow passage 10 in the axial direction of the casing gradually increases along the cooling medium flowing direction.

The heating ratio of the iron core is smaller than that of the end part in the heating of the motor, the iron core is positioned in the middle of the axial direction of the shell, and the middle flow channel 10 is positioned in the middle of the motor (outside the iron core), so that the flow speed of the cooling medium at the tail end of the middle flow channel 10 is smaller than that of the cooling medium at the tail ends of the first flow channel 8 and the second flow channel 9, the cooling medium is reasonably distributed in the first flow channel 8, the second flow channel 9 and the middle flow channel 10, the useful heat dissipation work is improved, and the heat dissipation effect of the motor is improved.

In some embodiments, the first flow path 8, the second flow path 9 and the middle flow path 10 are two, and when the inflow port 3 and the outflow port 4 are symmetrically arranged in the circumferential direction of the casing, the casing is spread in the circumferential direction thereof, the two first flow paths 8 are symmetrically arranged in the circumferential direction of the casing, the two second flow paths 9 are symmetrically arranged in the circumferential direction of the casing, and the two middle flow paths 10 are symmetrically arranged centering on the inflow port 3 or the outflow port 4.

Inflow port 3 and egress opening 4 are at the circumference symmetrical arrangement of casing, expand the casing along its circumference, two first runners 8 are at the circumference symmetrical arrangement of casing, two second runners 9 are at the circumference symmetrical arrangement of casing, can carry out balanced cooling to casing axial both ends, two middle part runners 10 use inflow port 3 or egress opening 4 as central symmetrical arrangement, carry out balanced cooling to the middle part of casing, the cooling effect of motor has been improved, the cooling medium in every circulation channel all flows to egress opening 4 along the circumference half-turn of casing, the length of every circulation channel has been shortened, the cooling efficiency of motor has been improved, the performance of motor has been promoted.

In some embodiments, the size of the inlet 3 and the interfaces of the two first flow channels 8, the two second flow channels 9 and the two middle flow channels 10 in the radial direction of the casing are all equal, the size of the inlet 3 and the interfaces of the two first flow channels 8 and the two second flow channels 9 in the circumferential direction of the casing is all B, the size of the inlet 3 and the interfaces of the two middle flow channels 10 in the axial direction of the casing is all a, B > a, and preferably, B is 1.1-1.2A.

Because the motor produces thermal main part winding head heat great, so for guaranteeing the radiating efficiency maximize, with the many more of casing axial both ends tip flow distribution, effectively cool down casing axial both ends tip, consequently the B of this embodiment > A's structure, preferred, B ═ 1.1 ~ 1.2A's structure can improve the cooling effect of motor, has promoted the performance of motor.

In some embodiments, a plurality of flow guide partitions 7 are disposed in each of the first flow passage 8, the second flow passage 9 and the middle flow passage 10, and the plurality of flow guide partitions 7 can configure the first flow passage 8, the second flow passage 9 and the middle flow passage 10 into bent flow passages which are sequentially and alternately bent towards two axial ends of the casing.

The multiple diversion partitions 7 of the embodiment construct the first flow channel 8, the second flow channel 9 and the middle flow channel 10 into bending flow channels, and the bending flow channels are alternately bent towards the first end and the second end of the machine shell, so that the cooling medium can uniformly cool the first flow channel 8, the second flow channel 9 and the middle flow channel 10, the cooling effect of the motor is improved, and the performance of the motor is improved.

In some embodiments, the flow guide partitions 7 extend along two axial ends of the casing, each flow guide partition 7 is provided with an overflowing hole, and adjacent overflowing holes are respectively located at different ends of adjacent flow guide partitions 7; or, the adjacent overflowing holes are respectively positioned in the middle and two ends of the adjacent flow guide partition 7.

The structure of the diversion partition 7 can construct the flow channel in the flow channel area into a bending flow channel, and the bending flow channel is bent towards the first end and the second end of the shell in the axial direction in an alternating mode, so that the cooling medium can cool the two ends and the middle of the shell in the axial direction in a balanced mode, the cooling effect of the motor is improved, and the performance of the motor is improved.

In some embodiments, the corners of the partition wall 2 and the flow guide wall 7 are both transited by a chamfer with a radius ranging from 15mm to 20 mm.

The bent angle department that the subregion cut off 2 and water conservancy diversion and cut off 7 of this embodiment all passes through the chamfer, and the radius range of chamfer makes the coolant circulation more comfortable for 15mm to 20mm, can make the coolant flow to the whole positions of casing more fast, has improved the cooling effect of motor, has promoted the performance of motor.

The invention also provides a motor which comprises the casing.

The solution according to the invention is particularly suitable when the motor is a horizontal motor, in which case the inflow 3 is located above the outflow 4 during installation.

The motor of this embodiment is horizontal motor, and inflow port 3 is located the top of egress opening 4 when the installation, and cooling medium can get into the circulation passageway inside at initial acceleration and action of gravity dual function when flowing in the circulation passageway like this, has improved the cooling effect of motor, has promoted the performance of motor.

In summary, the invention reforms the traditional axial cooling flow channel and spiral cooling flow channel to form a multi-path cooling structure, and the inflow port 3 is arranged in the middle of the shell, which is different from the traditional flow channel, the cooling medium flows from the middle of the shell to the two end parts respectively in multiple paths.

The motor shell only has a pair of inlets and outlets (the inlet 3 and the outlet 4), the design is simple, the cooling system is easy to implement, and a complete cooling channel is formed.

It is easily understood by those skilled in the art that the above-described modes can be freely combined and superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An enclosure, comprising: outer wall (5) and inner wall (6), outer wall (5) with it is regional to be provided with the runner that supplies the coolant circulation between inner wall (6), the regional intercommunication of runner has inflow entrance (3) and egress opening (4), inflow entrance (3) with egress opening (4) all set up the axial middle part of casing, and follow the circumference interval arrangement of casing, the regional interior water conservancy diversion structure that has of runner, the water conservancy diversion structure can be with coolant in the runner region is followed inflow entrance (3) water conservancy diversion extremely the axial both ends of casing, and follow the circumference half circle of casing flows extremely egress opening (4).

2. The machine shell according to claim 1, wherein the flow guide structure comprises a plurality of flow guide partitions (7), the number of the flow guide partitions (7) is multiple, and the flow guide partitions (7) can configure the flow channels in the flow channel area into bent flow channels which are sequentially and alternately bent towards two axial ends of the machine shell.

3. The cabinet according to claim 2, wherein the flow guide structure further comprises a partition wall (2), the partition wall (2) being capable of dividing the flow passage region into a plurality of flow passages, each of the flow passages communicating with the inlet port (3) and the outlet port (4), the plurality of flow passages being capable of guiding the cooling medium in the flow passage region from the inlet port (3) to both ends and a middle portion in the axial direction of the cabinet and to the outlet port (4) in the circumferential direction of the cabinet.

4. The housing according to claim 3, characterized in that one of the partition walls (2) is configured with one end face of the housing as a first flow channel (8) and/or one of the partition walls (2) is configured with the other end face of the housing as a second flow channel (9).

5. The casing according to claim 4, wherein the dimensions of the first flow channel (8) and the second flow channel (9) in the axial direction of the casing are gradually decreasing along the cooling medium flow direction.

6. The machine casing according to claim 4, wherein the plurality of flow channels further comprises a central flow channel (10), the central flow channel (10) being arranged between two axially adjacent partition walls (2) of the machine casing.

7. The casing according to claim 6, wherein the dimension of the middle flow channel (10) in the axial direction of the casing increases gradually along the cooling medium flow direction.

8. The cabinet according to claim 6, wherein the first flow passage (8), the second flow passage (9) and the middle flow passage (10) are two, the cabinet is spread out in a circumferential direction of the cabinet when the inflow port (3) and the outflow port (4) are symmetrically arranged in the circumferential direction of the cabinet, the two first flow passages (8) are symmetrically arranged in the circumferential direction of the cabinet, the two second flow passages (9) are symmetrically arranged in the circumferential direction of the cabinet, and the two middle flow passages (10) are symmetrically arranged centering on the inflow port (3) or the outflow port (4).

9. The housing according to claim 6, wherein the size of the inlet (3) and the interface of the two first flow channels (8), the two second flow channels (9) and the two middle flow channels (10) in the radial direction of the housing are all equal, the size of the inlet (3) and the interface of the two first flow channels (8) and the interface of the two second flow channels (9) in the circumferential direction of the housing are all B, the size of the inlet (3) and the interface of the two middle flow channels (10) in the axial direction of the housing are both A, and B > A.

10. The chassis of claim 9, wherein B is 1.1 to 1.2A.

11. The machine shell according to claim 6, wherein a plurality of flow guide partitions (7) are arranged in the first flow passage (8), the second flow passage (9) and the middle flow passage (10), and the flow guide partitions (7) can respectively configure the first flow passage (8), the second flow passage (9) and the middle flow passage (10) into bent flow passages which are sequentially and alternately bent towards two axial ends of the machine shell.

12. The casing according to claim 2 or 11, wherein the flow guide partitions (7) extend along two axial ends of the casing, each flow guide partition (7) is provided with an overflow hole, and adjacent overflow holes are respectively located at different ends of adjacent flow guide partitions (7); or the adjacent overflowing holes are respectively positioned in the middle and two ends of the adjacent flow guide partition (7).

13. An electrical machine comprising a housing as claimed in any one of claims 1 to 12.