CN216929801U - Split type motor cooling runner, motor with same, air compressor and automobile - Google Patents
Split type motor cooling runner, motor with same, air compressor and automobile Download PDFInfo
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- CN216929801U CN216929801U CN202122596480.0U CN202122596480U CN216929801U CN 216929801 U CN216929801 U CN 216929801U CN 202122596480 U CN202122596480 U CN 202122596480U CN 216929801 U CN216929801 U CN 216929801U
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- 238000001816 cooling Methods 0.000 title claims abstract description 200
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000110 cooling liquid Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The application relates to a split type motor cooling runner, includes: a motor box body and a water cooling jacket; the motor box body is provided with an accommodating cavity, a motor is placed in the accommodating cavity along the depth direction of the accommodating cavity, and a rotor shaft of the motor is parallel to the depth direction of the accommodating cavity; the water cooling jacket is arranged between the side wall of the accommodating cavity and the motor; the water cooling jacket surrounds the motor to form an annular cavity; n cooling flow channel bulges are arranged on the outer wall of the annular cavity; the inner wall of the accommodating cavity is abutted to the protrusion of the cooling flow channel, and a cooling flow channel opening is formed in a hollow area between the inner wall of the accommodating cavity and the protrusion of the cooling flow channel. The application provides a split type motor cooling runner can reduce the die sinking step of the cooling runner among the centrifugal air compressor machine, simplifies the structure of cooling runner, reduces motor cooling runner's the manufacturing process degree of difficulty and manufacturing cost.
Description
Technical Field
The application relates to the technical field of air compressors, in particular to a split type motor cooling flow channel, a motor with the split type motor cooling flow channel, an air compressor and an automobile.
Background
In a hydrogen fuel cell system of a new energy automobile, a fuel cell stack, a fuel cell boosting system, a high-pressure hydrogen storage tank, and an air intake and exhaust system are generally provided. The fuel cell stack is provided with a cathode stack and an anode stack, wherein the high-pressure hydrogen storage tank is connected with the cathode stack of the fuel cell stack, so that hydrogen enters the cathode stack from the high-pressure hydrogen storage tank to perform chemical reaction; the air intake and exhaust system is connected with the anode stack of the fuel cell stack, so that oxygen can enter the anode stack to perform chemical reaction. In order to provide oxygen with proper pressure for the anode stack of the fuel cell stack, the air inlet and outlet system is provided with an air compressor to pressurize the air and input the air into the anode stack of the fuel cell stack.
However, in the process of compressing hydrogen gas by using the air compressor in the prior art, the motor generates excessive heat to trigger the overheat protection of the motor and stop the operation of the motor, so that a cooling flow channel needs to be arranged in the air compressor to dissipate heat in order to ensure the normal operation of the air compressor. The cooling flow channel is usually disposed on the motor casing, and the cooling flow channel and the motor casing are integrally disposed. And the motor box structure that this integration set up is too complicated, and the process of die sinking is corresponding increases, causes the manufacturing cost of cooling runner to rise.
Therefore, in order to reduce the processing cost of the cooling channel and the mold opening step of the cooling channel, and simplify the structure of the cooling channel, a separate cooling channel for an electric machine is needed.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art, the present application provides a split-type motor cooling flow passage 210, including: a motor box 100 and a water cooling jacket 200;
the motor case 100 is provided with an accommodating cavity 110, the motor 300 is placed in the accommodating cavity 110 along the depth direction of the accommodating cavity 110, and the rotor shaft of the motor 300 is parallel to the depth direction of the accommodating cavity 110; the water cooling jacket 200 is disposed between the side wall of the accommodating cavity 110 and the motor 300; the water cooling jacket 200 surrounds the motor 300 to form an annular cavity; the inner diameter of the accommodating cavity 110 is matched with the outer diameter of the annular cavity; the inner diameter of the annular cavity is matched with the outer diameter of the motor 300; the outer wall of the ring cavity is provided with N cooling flow channel bulges 211; n is an integer greater than or equal to one; the inner wall of the accommodating cavity 110 abuts against the protrusion of the cooling channel 210, and a hollow area between the inner wall of the accommodating cavity 110 and the cooling channel protrusion 211 forms the cooling channel 210; one end of the cooling channel 210 is connected to the water inlet 220, and the other end is connected to the water outlet 230.
In one embodiment, the cooling flow path 210 includes M flow levels, where M is an integer greater than or equal to two; the flow rate class corresponds to the cross-sectional size of the cooling channel 210; wherein the flow level of the cooling flow passage 210 near the low temperature end of the motor 300 is lower than the flow level of the cooling flow passage 210 near the high temperature end of the motor 300.
In one embodiment, the hollow areas between two adjacent cooling flow channel protrusions 211 are communicated with each other, or the hollow areas between two adjacent cooling flow channel protrusions 211 are independent from each other.
In one embodiment, if the hollow areas between two adjacent cooling flow channel protrusions 211 are communicated with each other, the cooling flow channel 210 is a thread groove disposed around the outer wall of the annular cavity; the water inlet 220 of the annular cavity is arranged at the opening end of the thread groove, and the water outlet 230 of the annular cavity is arranged at the ending end of the thread groove.
In one embodiment, if the hollow areas between two adjacent cooling flow channel protrusions 211 are communicated with each other, the cooling flow channel 210 is a thread groove disposed around the outer wall of the annular cavity; the water inlet 220 is disposed at an opening end of the screw groove, and the water outlet 230 is disposed at an ending end of the screw groove.
In one embodiment, the groove depth of the thread groove along the depth direction of the receiving cavity 110 is gradually increased, and the cross-sectional area of the thread groove is gradually increased along the depth direction of the receiving cavity 110, or the inner wall of the receiving cavity 110 is provided with a runner groove 150, and the groove depth of the runner groove 150 along the depth direction of the receiving cavity 110 is gradually increased; the runner groove 150 is matched with the thread groove, and the runner groove 150 and the thread groove form the cooling runner 210; the cross-sectional area of the thread groove is gradually decreased in the depth direction of the receiving cavity 110.
In one embodiment, the sealing rings 400 are sleeved at two ends of the ring cavity along the depth direction of the accommodating cavity 110; the outer wall of the ring cavity is provided with a containing groove 240, and the sealing ring 400 is placed in the containing groove 240;
the line diameter of the sealing ring 400 is greater than or equal to the depth of the accommodating groove 240.
In one embodiment, the motor cooling flow channel 210 further comprises a locating pin; the outer wall of the annular cavity is provided with a limit groove 250; the motor case 100 is provided with a through hole; the positioning pin penetrates through the through hole and abuts against the limiting groove 250; the motor case 100 is provided with an inflow port 130 and an outflow port 140; the inlet port 220 is connected to the inflow port 130, and the outflow port 140 is connected to the outlet port 230.
A second aspect of the present application provides an electric machine 300 having a cooling flow path, comprising a rotor, a stator, and any one of the electric machine cooling flow paths 210 described in the first aspect of the present application.
The third aspect of the present application provides an air compressor including the motor 300 according to the second aspect of the present application.
The fourth aspect of the present application provides an automobile comprising the air compressor of the third aspect of the present application.
The technical scheme provided by the application can comprise the following beneficial effects:
in order to reduce the mold opening step of the cooling flow channel 210 in the centrifugal air compressor and simplify the structure of the cooling flow channel 210, the application provides a split motor cooling flow channel 210. The air compressor comprises a water cooling jacket 200 and a motor box body 100; the motor 300 is placed in the accommodating cavity 110 of the motor case 100, and the axial direction of the motor 300 is parallel to the depth direction of the accommodating cavity 110; the water cooling jacket 200 is arranged between the motor box 100 and the motor 300, the water cooling jacket 200 is provided with a cooling flow channel 210 projection around the annular cavity formed by the motor 300, the inner wall of the cooling flow channel 210 projection abutting against the accommodating cavity 110 forms the cooling flow channel 210, and meanwhile, the other side surface is attached to the outer wall of the motor 300. Therefore, when the motor 300 operates, heat generated by the motor 300 is firstly transferred to the water cooling jacket 200 attached to the outer wall of the motor 300; in the water cooling jacket 200, the cooling liquid continuously flows in from the water inlet 220 of the cooling flow channel 210 and then flows out from the water outlet 230 along the cooling flow channel 210; the cooling liquid continuously absorbs the heat on the water cooling jacket 200, and reduces the temperature of the water cooling jacket 200, so that the motor 300 transfers the excess heat to the flowing cooling liquid along the water cooling jacket 200 through heat exchange, and the heat dissipation of the motor 300 is realized.
Because the motor box 100 and the water cooling jacket 200 are separately cast, a complex process flow of forming the cooling flow channel 210 on the side wall of the motor box 100 is avoided, and in the embodiment of the application, the water cooling jacket 200 is placed in the accommodating cavity of the motor box 100, and because the cooling flow channel protrusion 211 is arranged on the outer wall of the water cooling jacket 200, the cooling flow channel 210 is formed in the inner wall of the accommodating channel and a hollow area between two adjacent cooling flow channel protrusions 211; the manufacturing process of the motor cooling flow channel 210 is simplified while the cooling function is realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the application.
Fig. 1 is a schematic structural diagram of a cooling flow passage of an electric machine according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of the water jacket shown in FIG. 1;
fig. 3 is another schematic structural diagram of a cooling flow passage of a motor according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a water cooling jacket according to an embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application have been illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
To overcome the problems in the related art, the present application provides a split motor cooling flow channel 210, as shown in fig. 1 and 2, including: a motor box 100 and a water cooling jacket 200;
the motor case 100 is provided with an accommodating cavity 110, the motor 300 is placed in the accommodating cavity 110 along the depth direction of the accommodating cavity 110, and the rotor shaft of the motor 300 is parallel to the depth direction of the accommodating cavity 110; the water cooling jacket 200 is disposed between the side wall of the accommodating cavity 110 and the motor 300; the water cooling jacket 200 surrounds the motor 300 to form an annular cavity; the inner diameter of the accommodating cavity 110 is matched with the outer diameter of the annular cavity; the inner diameter of the annular cavity is matched with the outer diameter of the motor 300; the outer wall of the ring cavity is provided with N cooling flow channel bulges 211; n is an integer greater than or equal to one; the inner wall of the accommodating cavity 110 abuts against the protrusion of the cooling channel 210, and a hollow area between the inner wall of the accommodating cavity 110 and the cooling channel protrusion 211 forms the cooling channel 210; one end of the cooling channel 210 is connected to the water inlet 220, and the other end is connected to the water outlet 230.
Further, the sealing ring 400 is sleeved at two ends of the annular cavity along the depth direction of the accommodating cavity 110; the outer wall of the ring cavity is provided with a containing groove 240, and the sealing ring 400 is placed in the containing groove 240; the line diameter of the sealing ring 400 is greater than or equal to the depth of the accommodating groove 240.
Specifically, the sealing ring 400 is made of rubber.
It should be noted that the material of the seal ring 400 in the embodiment of the present application is exemplary, and is not limited thereto.
In the embodiment of the present application, two seal rings 400 are included and are respectively disposed at two ends of the water cooling jacket 200 along the depth direction of the accommodating cavity 110. The sealing ring 400 is disposed in the accommodating groove 240, and when the water cooling jacket 200 is embedded in the motor housing 100, the sealing ring 400 is squeezed between the accommodating groove 240 and the inner wall of the accommodating cavity 110 to deform due to the fact that the diameter of the sealing ring 400 is greater than the depth of the accommodating groove 240. The sealing ring 400 seals a gap between the water cooling jacket 200 and the inner wall of the accommodating chamber 110 by interference fit, thereby preventing the coolant from leaking between the water cooling jacket 200 and the inner wall of the accommodating chamber 110.
Further, the motor cooling flow channel 210 further includes a positioning pin;
the outer wall of the annular cavity is provided with a limit groove 250; the motor case 100 is provided with a through hole; the positioning pin penetrates through the through hole and abuts against the limiting groove 250;
the motor case 100 is provided with an inflow port 130 and an outflow port 140; the inlet port 220 is connected to the inflow port 130, and the outflow port 140 is connected to the outlet port 230.
In the embodiment of the present application, the water cooling jacket 200 is installed in the accommodation cavity 110 in an embedded manner in order to prevent the water cooling jacket 200 from moving in the depth direction of the accommodation cavity 110. The water cooling jacket 200 is fixed through the positioning pins in the embodiment of the application.
Specifically, the through hole of the motor case 100 and the limiting groove 250 of the water cooling jacket 200 are arranged along the radial direction of the accommodating cavity 110, and the positioning pin penetrates through the through hole and abuts against the limiting groove 250, so that the water cooling jacket 200 is clamped in the depth direction of the accommodating cavity 110.
Specifically, the number of the inflow ports 130 is matched with that of the water inlet ports 220, the number of the outflow ports 140 is matched with that of the water outlet ports 230, and the cooling liquid flows out of the external water tank and sequentially passes through the inflow ports 130, the water inlet ports 220, the cooling channel, the water outlet ports 230 and the outflow ports 140.
In the embodiment of the present application, in order to reduce the mold opening step of the cooling flow channel 210 in the centrifugal air compressor and simplify the structure of the cooling flow channel 210, the present application provides a split motor cooling flow channel 210. The air compressor comprises a water cooling jacket 200 and a motor box body 100; the motor 300 is placed in the accommodating cavity 110 of the motor case 100, and the axial direction of the motor 300 is parallel to the depth direction of the accommodating cavity 110; the water cooling jacket 200 is arranged between the motor box 100 and the motor 300, the water cooling jacket 200 is provided with a cooling flow channel 210 projection around the annular cavity formed by the motor 300, the inner wall of the cooling flow channel 210 projection abutting against the accommodating cavity 110 forms the cooling flow channel 210, and meanwhile, the other side surface is attached to the outer wall of the motor 300. Therefore, when the motor 300 operates, heat generated by the motor 300 is firstly transferred to the water cooling jacket 200 attached to the outer wall of the motor 300; in the water cooling jacket 200, the cooling liquid continuously flows in from the water inlet 220 of the cooling flow channel 210 and then flows out from the water outlet 230 along the cooling flow channel 210; the cooling liquid continuously absorbs the heat on the water cooling jacket 200, and reduces the temperature of the water cooling jacket 200, so that the motor 300 transfers the excess heat to the flowing cooling liquid along the water cooling jacket 200 through heat exchange, and the heat dissipation of the motor 300 is realized.
Because the motor box 100 and the water cooling jacket 200 are separately cast, a complex process flow of forming the cooling flow channel 210 on the side wall of the motor box 100 is avoided, and in the embodiment of the application, the water cooling jacket 200 is placed in the accommodating cavity of the motor box 100, and because the cooling flow channel protrusion 211 is arranged on the outer wall of the water cooling jacket 200, the cooling flow channel 210 is formed in the inner wall of the accommodating channel and a hollow area between two adjacent cooling flow channel protrusions 211; the manufacturing process of the motor cooling flow channel 210 is simplified while the cooling function is realized.
Example two
The motor 300 of the centrifugal air compressor has two ends, one end is an air inlet (low pressure port) and the other end is an air outlet (high pressure port), the air temperature at one end of the air inlet is low, and the temperature at one end of the air outlet is high. Therefore, the motor 300 needs to emit less heat toward the air inlet end than the air outlet end. In the prior art, the heat dissipation capability of the motor cooling flow channel 210 is set according to the highest temperature of the motor 300, which causes the temperature at one end of the air inlet of the motor 300 to be too low, resulting in the occurrence of condensed water at the air inlet, possibly causing a short circuit of the motor 300.
Therefore, on the basis of the first embodiment, the present embodiment further provides a split motor cooling flow channel 210, as shown in fig. 1 and fig. 2, including: a motor box 100 and a water cooling jacket 200;
the motor case 100 is provided with an accommodating cavity 110, the motor 300 is placed in the accommodating cavity 110 along the depth direction of the accommodating cavity 110, and the rotor shaft of the motor 300 is parallel to the depth direction of the accommodating cavity 110; the water cooling jacket 200 is disposed between the side wall of the accommodating cavity 110 and the motor 300; the water cooling jacket 200 surrounds the motor 300 to form an annular cavity; the inner diameter of the accommodating cavity 110 is matched with the outer diameter of the annular cavity; the inner diameter of the annular cavity is matched with the outer diameter of the motor 300; the outer wall of the annular cavity is provided with N cooling flow channel bulges 211; n is an integer greater than or equal to one; the inner wall of the accommodating cavity 110 abuts against the protrusion of the cooling channel 210, and a hollow area between the inner wall of the accommodating cavity 110 and the cooling channel protrusion 211 forms the cooling channel 210; one end of the cooling channel 210 is connected to the water inlet 220, and the other end is connected to the water outlet 230.
Further, the cooling channel 210 includes M flow levels, where M is an integer greater than or equal to two; the flow rate class corresponds to the cross-sectional size of the cooling channel 210; wherein the flow level of the cooling flow channel 210 near the low temperature end of the motor 300 is lower than the flow level of the cooling flow channel 210 at the high temperature end of the motor 300.
It should be noted that the high temperature end of the motor 300 is the air outlet end of the motor 300, and the low temperature section of the motor 300 is the air inlet end of the motor 300.
In the embodiment of the present application, the cooling channel 210 includes a plurality of flow levels, and the flow cross section of the cooling channel 210 increases with the increase of the flow levels, and the flow rate of the cooling liquid decreases with the decrease of the flow levels. Therefore, when the water cooling jacket 200 is assembled, the cooling flow channel 210 with a high flow level is arranged at one end of the air outlet of the motor 300, and the cooling flow channel 210 with a low flow level is arranged at one end of the air inlet of the motor 300, and meanwhile, the flow level of the cooling flow channel 210 gradually decreases from one end of the air outlet to one end of the air inlet, so that different heat dissipation effects can be applied to different positions of the motor 300, and the occurrence of condensed water is effectively prevented.
EXAMPLE III
The cooling flow channel 210 of the present application is formed by structural cooperation between the motor casing 100 and the water cooling jacket 200, and to exemplarily explain the shape of the cooling flow channel 210, the embodiment of the present application provides a split motor cooling flow channel 210, as shown in fig. 3, including: a motor box 100 and a water cooling jacket 200; the motor case 100 is provided with an accommodating cavity 110, the motor 300 is placed in the accommodating cavity 110 along the depth direction of the accommodating cavity 110, and the rotor shaft of the motor 300 is parallel to the depth direction of the accommodating cavity 110; the water cooling jacket 200 is disposed between the side wall of the accommodating cavity 110 and the motor 300; the water cooling jacket 200 surrounds the motor 300 to form an annular cavity; the inner diameter of the accommodating cavity 110 is matched with the outer diameter of the annular cavity; the inner diameter of the annular cavity is matched with the outer diameter of the motor 300; the outer wall of the ring cavity is provided with N cooling flow channel bulges 211; n is an integer greater than or equal to one; the inner wall of the accommodating cavity 110 abuts against the protrusion of the cooling channel 210, and a hollow area between the inner wall of the accommodating cavity 110 and the cooling channel protrusion 211 forms the cooling channel 210; one end of the cooling channel 210 is connected to the water inlet 220, and the other end is connected to the water outlet 230.
Further, the hollow areas between two adjacent cooling flow channel protrusions 211 are communicated with each other, or the hollow areas between two adjacent cooling flow channel protrusions 211 are independent from each other.
As shown in fig. 4, when the hollow areas between two adjacent cooling flow channel protrusions 211 are communicated with each other, the cooling flow channel 210 is a thread groove disposed around the outer wall of the annular cavity; the water inlet 220 of the annular cavity is arranged at the opening end of the thread groove, and the water outlet 230 of the annular cavity is arranged at the ending end of the thread groove.
In the embodiment of the present application, the cooling flow passage 210 of the water jacket 200 is a continuous thread groove on the outer wall of the annular cavity.
Specifically, the cross section of the thread groove is rectangular.
Specifically, the major diameter of the thread groove is equal to the inner diameter of the receiving cavity 110.
The cross-sectional shape of the thread groove in the embodiment of the present application is exemplary, and the present application is not limited thereto.
Illustratively, to achieve a progressive cooling effect of the cooling channels 210; the depth of the groove of the thread groove along the depth direction of the receiving cavity 110 is gradually increased, and the cross-sectional area of the thread groove is gradually increased along the depth direction of the receiving cavity 110.
Further, the cross-sectional area of the thread groove is gradually decreased along the depth direction of the receiving cavity 110.
Illustratively, the inner wall of the accommodating cavity 110 is provided with a runner groove 150, and the depth of the runner groove 150 along the depth direction of the accommodating cavity 110 is gradually increased; the runner groove 150 is matched with the thread groove, and the runner groove 150 and the thread groove form the cooling runner 210.
Further, the cross-sectional area of the runner groove 150 is gradually decreased in the depth direction of the receiving cavity 110.
In the embodiment of the present application, in order to further simplify the structure of the water cooling jacket 200, the hollow space formed by the protrusion of the cooling flow channel 210 of the water cooling jacket 200 is a threaded groove, and the threaded groove is disposed on the outer wall of the annular cavity; when the water cooling jacket 200 is placed in the accommodating cavity 110, the thread groove is attached to the inner wall of the motor case 100 to form the cooling flow channel 210, or the thread groove is matched with the flow channel 150 to form the cooling flow channel 210. The beginning end of the thread groove is the water inlet end of the cooling flow channel 210, and the ending end is the water outlet end of the cooling flow channel 210. Meanwhile, the depth of the thread groove or the depth of the runner groove 150 on the inner wall of the accommodating cavity 110 is increased step by step along the depth direction of the accommodating cavity 110, so that the flow section of the cooling runner 210 is increased gradually along with the increasing of the flow grade, and the step by step cooling effect of the motor 300 is realized.
Example four
An electric machine 300 having a cooling flow path includes a rotor, a stator, and the electric machine cooling flow path 210 of any of the above embodiments.
EXAMPLE five
An air compressor includes the motor 300 of the fourth embodiment.
Example six
An automobile comprises the air compressor in the fifth embodiment.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A split electric machine cooling flow channel (210), comprising: a motor box body (100) and a water cooling jacket (200);
the motor box body (100) is provided with an accommodating cavity (110), a motor (300) is placed in the accommodating cavity (110) along the depth direction of the accommodating cavity (110), and a rotor shaft of the motor (300) is parallel to the depth direction of the accommodating cavity (110);
the water cooling jacket (200) is arranged between the side wall of the accommodating cavity (110) and the motor (300); the water cooling jacket (200) surrounds the motor (300) to form an annular cavity;
the inner diameter of the accommodating cavity (110) is matched with the outer diameter of the annular cavity;
the inner diameter of the annular cavity is matched with the outer diameter of the motor (300);
the outer wall of the annular cavity is provided with N cooling flow channel bulges (211); n is an integer greater than or equal to one;
the inner wall of the accommodating cavity (110) is abutted against the protrusion of the cooling flow channel (210), and a hollow area between the inner wall of the accommodating cavity (110) and the cooling flow channel protrusion (211) forms the cooling flow channel (210);
one end of the cooling flow channel (210) is connected with the water inlet (220), and the other end of the cooling flow channel is connected with the water outlet (230).
2. A split electric machine cooling flow channel (210) according to claim 1, comprising:
the cooling flow channel (210) comprises M flow levels, wherein M is an integer greater than or equal to two;
the flow level corresponds to the cross-sectional size of the cooling flow channel (210);
wherein the flow level of the cooling flow channel (210) near the low temperature end of the motor (300) is less than the flow level of the cooling flow channel (210) near the high temperature end of the motor (300).
3. A split electric machine cooling flow channel (210) according to claim 1, comprising:
the hollow areas between two adjacent cooling flow channel bulges (211) are communicated with each other,
or hollow-out areas between two adjacent cooling flow channel bulges (211) are mutually independent.
4. A split electric machine cooling flow channel (210) according to claim 1, comprising:
if the hollow areas between the two adjacent cooling flow channel bulges (211) are communicated with each other, the cooling flow channel (210) is a thread groove arranged around the outer wall of the annular cavity;
the water inlet (220) is arranged at the opening end of the thread groove, and the water outlet (230) is arranged at the finishing end of the thread groove.
5. A split electric machine cooling flow channel (210) according to claim 4, comprising:
the grooving depth of the thread groove along the depth direction of the accommodating cavity (110) is gradually deepened, and the cross sectional area of the thread groove is gradually increased along the depth direction of the accommodating cavity (110);
or the like, or, alternatively,
a runner groove (150) is formed in the inner wall of the accommodating cavity (110), and the depth of the runner groove (150) along the depth direction of the accommodating cavity (110) is gradually increased; the runner groove (150) is matched with the threaded groove, and the runner groove (150) and the threaded groove form the cooling runner (210);
the cross-sectional area of the thread groove is gradually reduced along the depth direction of the accommodating cavity (110).
6. A split electric machine cooling flow channel (210) according to claim 1, further comprising a sealing ring (400);
the sealing rings (400) are sleeved at two ends of the annular cavity along the depth direction of the accommodating cavity (110);
an accommodating groove (240) is formed in the outer wall of the annular cavity, and the sealing ring (400) is placed in the accommodating groove (240);
the line diameter of the sealing ring (400) is larger than or equal to the depth of the accommodating groove (240).
7. A split electric machine cooling flow channel (210) according to claim 1, further comprising a locating pin;
the outer wall of the annular cavity is provided with a limiting groove (250); the motor box body (100) is provided with a through hole (120); the positioning pin penetrates through the through hole and abuts against the limiting groove (250);
the motor box body (100) is provided with an inflow port (130) and an outflow port (140); the water inlet (220) is connected with the inflow port (130), and the outflow port (140) is connected with the water outlet (230).
8. An electrical machine with a cooling flow path, characterized by comprising a rotor, a stator and a machine cooling flow path (210) according to any of claims 1 to 7.
9. An air compressor, characterized by comprising the motor with a cooling flow passage of claim 8.
10. An automobile characterized by comprising the air compressor of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122596480.0U CN216929801U (en) | 2021-10-27 | 2021-10-27 | Split type motor cooling runner, motor with same, air compressor and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122596480.0U CN216929801U (en) | 2021-10-27 | 2021-10-27 | Split type motor cooling runner, motor with same, air compressor and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216929801U true CN216929801U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122596480.0U Active CN216929801U (en) | 2021-10-27 | 2021-10-27 | Split type motor cooling runner, motor with same, air compressor and automobile |
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| Country | Link |
|---|---|
| CN (1) | CN216929801U (en) |
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2021
- 2021-10-27 CN CN202122596480.0U patent/CN216929801U/en active Active
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