CN117294077A - Motor with a motor housing - Google Patents
Motor with a motor housing Download PDFInfo
- Publication number
- CN117294077A CN117294077A CN202210684267.1A CN202210684267A CN117294077A CN 117294077 A CN117294077 A CN 117294077A CN 202210684267 A CN202210684267 A CN 202210684267A CN 117294077 A CN117294077 A CN 117294077A
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- oil
- oil delivery
- stator assembly
- motor
- main body
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- 238000004804 winding Methods 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 55
- 230000000694 effects Effects 0.000 abstract description 17
- 230000005484 gravity Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The application provides a motor, comprising a shell, a stator assembly, a rotor and a first flow guiding device; the stator assembly is sleeved on the periphery of the rotor and fixed in the shell, and is provided with an oil conveying channel which is penetrated along the axial direction and windings at two sides of the axial direction; the first flow guiding device comprises a hollow first supporting main body, and a first oil conveying pipe and a second oil conveying pipe which are positioned on two sides of the first supporting main body, wherein the first oil conveying pipe is used for connecting an oil supply port of a gearbox, and the second oil conveying pipe is connected to one end of the oil conveying channel. The application the motor, be formed with the oil transportation passageway that link up along the axial on the stator module, and with first guiding device cooperation is connected with the oil feed inlet of gearbox, thereby follows the cooling oil that the gearbox provided is carried the other end to the axial one end of stator module, makes the stator module can obtain the cooling from axial one end to the whole homoenergetic of the other end, has promoted the cooling effect.
Description
Technical Field
The application relates to the technical field of motors, in particular to a motor with a flow guiding device.
Background
The stator in the motor is connected with the shell through hot fitting, the coil winding and the stator core in the stator can generate heat during operation, the coil winding and the stator core are generally cooled by cooling oil in a gearbox connected with the shell, the conveying direction of the cooling oil is from one end of the coil winding to the other end of the gearbox along the axial direction, and the cooling oil realizes cooling of the coil winding and the stator core during the movement. Because the stator and the shell are matched through hot fitting, the gap between the stator and the shell at the radial contact surface is smaller, cooling oil can be blocked when passing through the contact surface, only a small amount of (or no) cooling oil moves from one end of the stator to the other end, so that the cooling oil contacted with one end of the stator far away from the gearbox is less or cannot contact with the cooling oil, the cooling effect of one end of the stator contacted with the cooling oil is poor, and the problem of lower cooling efficiency of the stator exists.
Disclosure of Invention
An object of the present application is to provide a motor with a better cooling effect.
To achieve the above object, the present application provides an electric machine, including a housing, a stator assembly, a rotor, and a first flow guiding device; the stator assembly is sleeved on the periphery of the rotor and fixed in the shell, and is provided with an oil conveying channel which is penetrated along the axial direction and windings at two sides of the axial direction; the first flow guiding device comprises a hollow first supporting main body, and a first oil conveying pipe and a second oil conveying pipe which are positioned on two sides of the first supporting main body, wherein the first oil conveying pipe is used for connecting an oil supply port of a gearbox, and the second oil conveying pipe is connected to one end of the oil conveying channel.
In an embodiment, the number of the oil delivery channels is a plurality, and the oil delivery channels are equal or unequal in size and are uniformly or non-uniformly distributed in the peripheral direction of the stator assembly; the second oil delivery pipes are correspondingly matched with the oil delivery channels, are multiple in number and equal or unequal in size, and are uniformly or non-uniformly distributed in the peripheral direction of the first support main body.
In an embodiment, the number of the oil delivery channels is a plurality, and the oil delivery channels are equal in size and are uniformly distributed in the peripheral direction of the stator assembly; the second oil delivery pipes are correspondingly matched with the oil delivery channels, are multiple in number and equal in size, and are uniformly distributed in the peripheral direction of the first support main body.
In an embodiment, the number of the oil delivery channels is multiple, and the oil delivery channels are divided into multiple groups and are regularly arranged in multiple different areas in the peripheral direction of the stator assembly; the second oil delivery pipes are correspondingly matched with the oil delivery channels, are multiple in number and divided into multiple groups, and are regularly arranged in multiple different areas in the peripheral direction of the first support main body.
In an embodiment, the first supporting body is annular and sleeved on the periphery of the winding on one side of the stator assembly, and the first oil transmission hole is formed in the inner surface of the first supporting body and attached to the outer surface of the winding on one side of the stator assembly.
In an embodiment, the motor further comprises a second flow guiding device, wherein the second flow guiding device comprises a hollow second supporting main body and a third oil delivery pipe positioned at one side of the second supporting main body, and the third oil delivery pipe is connected to the other end of the oil delivery channel;
the second support main body is annular and sleeved on the periphery of the winding on the other side of the stator assembly, and a second oil transmission hole is formed in the inner surface of the second support main body and attached to the outer surface of the winding on the other side of the stator assembly.
In an embodiment, the number of the first oil holes is a plurality of, and the first oil holes are equal or unequal in size and are uniformly or non-uniformly distributed on the inner surface of the first support main body in one or more rows;
the second oil conveying holes are multiple in number, equal in size or unequal in size, are in one or more rows, and are uniformly or non-uniformly distributed on the inner surface of the second support main body.
In an embodiment, the number of the first oil holes is a plurality of, the sizes of the first oil holes are equal, and the first oil holes are in one row or two rows and are uniformly distributed on part of arc sections of the inner surface of the first support main body; and/or
The second oil holes are multiple in number and equal in size, are in one or two rows, and are uniformly distributed on partial arc sections of the inner surface of the second support main body.
In one embodiment, an oil outlet is arranged on an end cover of one side of the shell, which is far away from the gearbox, and the oil outlet is communicated with the inside of the shell; the gearbox is provided with an oil receiving port far away from the oil supply port, and the oil receiving port is communicated with the inside of the shell.
In an embodiment, the number of the first oil delivery pipes is one, and the cross-sectional area of the first oil delivery pipes is far larger than that of the second oil delivery pipes.
The motor provided by the application is formed with the oil transportation passageway that link up along the axial on stator module, cooperates with first guiding device, carries the other end from stator module's axial one end to cooling oil, cools off stator module (including winding) axial one end to the other end is whole, has promoted the cooling effect. The first oil conveying hole is formed in the first flow guiding device, the second output hole is formed in the second flow guiding device, the circumferential direction of windings on two sides of the stator assembly is directly cooled, and the cooling effect is further improved. And through the oil delivery channel, the second oil delivery pipe, the third oil delivery pipe, the first oil delivery hole, the second oil delivery hole, the different quantity, the different size and the arrangement of the oil delivery channels, the second oil delivery pipe, the third oil delivery pipe, the first oil delivery hole, the second oil delivery hole and the arrangement of the oil delivery channels, the flow speed and the distribution of cooling oil can be adjusted, so that a better cooling effect can be obtained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional view of a motor in a first embodiment of the present application;
fig. 2 is a schematic perspective view of a stator assembly of an electric machine in a first embodiment of the present application;
fig. 3 is a schematic perspective view of a first flow guiding device of the motor according to the first embodiment of the present application;
fig. 4 is an enlarged schematic view of a partial structure of a first deflector of the motor in the first embodiment of the present application;
fig. 5 is a schematic perspective view of a stator assembly of an electric machine in a second embodiment of the present application;
fig. 6 is a schematic cross-sectional view of a motor in a third embodiment of the present application;
fig. 7 is a schematic perspective view of a second flow guiding device of the motor in a third embodiment of the present application;
fig. 8 is an enlarged schematic view of a partial structure of a second deflector of the motor in a third embodiment of the present application.
The main reference numerals in the drawings of the present specification are explained as follows:
the first guiding device 1, the first supporting body 11, the first cavity 12, the first oil delivery pipe 13, the second oil delivery pipe 14, the first oil delivery hole 15, the motor 2, the shell 21, the stator assembly 22, the stator core 221, the oil delivery channel 222, the windings 223 and 224, the fixing lug 225, the threaded hole 226, the long screw 227, the oil outlet 211, the rotor 26, the gearbox 3, the oil supply port 31, the oil receiving port 32, the second guiding device 4, the second supporting body 411, the third oil delivery pipe 413, the second oil delivery hole 415 and the positioning block 416.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which are within the scope of the protection of the present application, will be within the skill of the art without inventive effort.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The present application provides a motor, which is described in detail below. It should be noted that the following description order of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of the embodiments are focused on, and for the part that is not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
Referring to fig. 1, a first embodiment of the present application provides an electric motor 2, which includes a housing 21, a stator assembly 22, a rotor 26, and a first flow guiding device 1. The stator assembly 22 is sleeved on the periphery of the rotor 26 and is fixed in the housing 21. The stator assembly 22 is formed with an oil delivery passage 222 penetrating in the axial direction and windings formed on both sides in the axial direction; the first flow guiding device 1 comprises a hollow first supporting body 11, and a first oil delivery pipe 13 and a second oil delivery pipe 14 which are positioned on two sides of the first supporting body 11, wherein the first oil delivery pipe 13 is used for being connected with an oil supply port 31 of the gearbox 3, and the second oil delivery pipe 14 is connected to one end of the oil delivery channel 222.
The application the motor is formed with the oil transportation passageway 222 that link up along the axial on the stator module 22, and with first guiding device 1 cooperation is connected with the fuel feed port 31 of gearbox 3, thereby with the cooling oil that gearbox 3 provided follow stator module 22 axial one end is carried the other end, makes stator module 22 can both obtain the cooling from axial one end to the other end is whole, has promoted the cooling effect.
In various embodiments, the number of oil delivery channels 222 may be one; or the number of the oil delivery channels 222 may be plural, and the oil delivery channels may be equal or unequal in size and uniformly or non-uniformly arranged in the peripheral direction of the stator assembly 22; correspondingly, the second oil delivery pipes 14 are correspondingly matched with the oil delivery channels 222, and the number of the second oil delivery pipes 14 can be one; or the second oil delivery pipes 14 may be plural, equal in size or unequal in size, and uniformly or non-uniformly arranged in the peripheral direction of the first support body 11. The different numbers, sizes and arrangements of the oil delivery channels 222 can adjust the different flow rates and distribution of the cooling oil to achieve different desired cooling effects.
Referring to fig. 2 in combination, in an embodiment, the end face of the stator assembly 22 is circular and includes a stator core 221, and the oil delivery channels 222 are disposed in the peripheral direction of the stator core 221, and are plural in number and equal in size and uniformly arranged in the peripheral direction of the stator core 221 (the stator assembly 22). The stator core 221 is wound with a coil inside and windings 223 and 224 are formed on both sides in the axial direction of the stator assembly 22.
Correspondingly, referring to fig. 3 and 4, the first supporting body 11 of the first guiding device 1 is annular, and a first cavity 12 is formed in the first supporting body. The first oil delivery pipe 13 is disposed on one side of the first support body 11, the second oil delivery pipe 14 is disposed on the other side of the first support body 11, and the first oil delivery pipe 13 and the second oil delivery pipe 14 are both communicated with the first cavity 12 to convey cooling oil. The second oil delivery pipes 14 are plural and equal in size and are uniformly arranged in the outer circumferential direction of the first support body 11.
Referring to fig. 5, in the motor provided in the second embodiment of the present application, the number of the oil delivery channels 222 provided on the stator assembly 22 is also plural, but the difference between the motor and the first embodiment is that the oil delivery channels 222 are divided into plural groups and are regularly arranged in plural different areas along the peripheral direction of the stator assembly 22; correspondingly, the second oil delivery pipe 14 also needs to be divided into a plurality of groups, and the groups are regularly arranged in a plurality of different areas along the peripheral direction of the first support main 11. In the embodiment shown in fig. 5, the oil delivery channels 222 are divided into four groups, and the number of the oil delivery channels is equal and the oil delivery channels are regularly distributed among the groups; the oil delivery channels 222 in any group are different from the other oil delivery channels in the middle, the oil delivery channels are not equal in size and are arranged in a staggered mode, and the other oil delivery channels in the middle are equally arranged and are arranged at equal intervals. Correspondingly, the second oil delivery pipe 14 is also correspondingly arranged to match the arrangement of the oil delivery passage 222.
Referring back to fig. 1-4, the first supporting body 11 of the first flow guiding device 1 is sleeved on the periphery of the winding 223 on one side of the stator assembly 22, and the inner surface of the first supporting body 11 is provided with the first oil hole 15, and is attached to the outer surface of the winding 223 on one side of the stator assembly 22. In various embodiments, the number of the first oil delivery holes 15 may be one; or the number of the first oil holes 15 may be plural, equal in size or unequal in size, and arranged in one or more rows uniformly or non-uniformly on the inner surface of the first supporting body 11. The first oil delivery holes 15 have different numbers, sizes and arrangements, and can adjust different flow speeds and distribution of the cooling oil so as to realize different required cooling effects. In the embodiment shown in fig. 3, the first oil delivery holes 15 are plural, and are arranged in a row and uniformly distributed on a part of arc sections of the inner surface of the first supporting body 11. For example, after the motor is mounted and fixed, the arc section is located at the upper half of the first supporting body 11 in the vertical direction, so that the cooling oil can flow out from the oil delivery channel 222 to the outer surface of the winding 223 on the side of the stator assembly 22 through the first oil delivery hole 15 by gravity, so as to cool the winding 223 on the side of the stator assembly 22 without providing too much power for the cooling oil.
In this way, cooling oil enters the motor from the oil supply port 31 of the gearbox 3 through the first oil delivery pipe 13 of the first flow guiding device 1; then, part of the cooling oil flows out from the first oil hole 15 of the first guiding device 1 to the outer surface of the winding 223 on the side of the stator assembly 22, and directly contacts with the outer surface of the winding 223 on the side of the stator assembly 22, so as to directly cool the winding 223 on the side of the stator assembly 22; part of the cooling oil is delivered from one axial end to the other axial end of the oil delivery channel 222 of the stator assembly 22 through the second oil delivery pipe 14 of the first flow guiding device 1, the stator core 221 is cooled integrally from one axial end to the other axial end, meanwhile, the middle part of the coil is indirectly cooled through the stator core 221, then the cooling oil flows out from the other axial end of the oil delivery channel 222 of the stator assembly 22, drops on the outer surface of the winding 224 on the other side of the stator assembly 22, directly contacts with the outer surface of the winding 224 on the other side of the stator assembly 22, and directly cools the winding 224 on the other side of the stator assembly 22.
From the foregoing, it can be seen that, in the motor provided by the present application, the oil delivery channel 222 that is disposed through the stator assembly 22 along the axial direction is matched with the first guiding device 1, and meanwhile, the stator assembly 22 (including the windings 223 and 224) of the motor is directly cooled and indirectly cooled, so that the overall cooling effect is improved. Moreover, by the arrangement of the oil delivery channel 222, the second oil delivery pipe 14 and the first oil delivery hole 15 with different numbers, sizes and arrangements, the flow speed and distribution of the cooling oil can be adjusted, and the cooling effect can be further adjusted. For example, if the heat generated by the whole motor is not uniform, the oil delivery channel 222, the second oil delivery pipe 14 and the first oil delivery hole 15 need not be uniformly arranged as in the first embodiment, but more larger oil delivery channels 222, second oil delivery pipes 14 and first oil delivery holes 15 are arranged for the heat generated by the part with higher heat as in the second embodiment; for the parts with low or even no heat generation, fewer smaller oil delivery channels 222, second oil delivery pipes 14 and first oil delivery holes 15 are arranged. In this way, the stator assembly 22 can be uniformly cooled in the whole circumferential direction, and the important parts and the non-important parts can be differentially cooled according to actual needs, so as to meet various cooling requirements.
Referring to fig. 6-8, a third embodiment of the present application provides a motor, which further includes a second flow guiding device 4, and other structures are the same as those of the motor provided in the foregoing second embodiment. The second guiding device 4 is similar to the first guiding device 1 in structure, and includes a hollow second supporting body 411, a third oil delivery pipe 413 disposed on one side of the second supporting body 411, and a second oil delivery hole 415 disposed on an inner surface of the second supporting body 411. The third oil delivery pipe 413 is correspondingly matched with the oil delivery passage 222 to be connected to the other end of the oil delivery passage 222. In the third embodiment, corresponding to the oil delivery passage 222 in the second embodiment, the third oil delivery pipes 413 are divided into a plurality of groups and are regularly arranged in a plurality of different areas in the outer circumferential direction of the second support body 411. In the specific embodiment shown in fig. 7 and fig. 8, the third oil delivery pipes 413 are divided into four groups, and the number of the third oil delivery pipes is equal and the third oil delivery pipes are regularly distributed among the groups; the first and the last oil delivery pipes 413 in any group are different from the other oil delivery pipes in the middle, are not equal in size and are arranged in a staggered mode, and the other oil delivery pipes in the middle are equally arranged in an equidistant mode. The second supporting body 411 of the second flow guiding device 4 is sleeved on the periphery of the winding 224 at the other side of the stator assembly 22, and the second oil transmission hole 415 is attached to the outer surface of the winding 224 at the other side of the stator assembly 22. The second oil holes 415 may be one in number, or the second oil holes 415 may be multiple in number, equal in size or unequal in size, and may be uniformly or non-uniformly arranged on the inner surface of the second supporting body 411 in one or more rows, similar to the first oil holes 15 described above. Of course, in any specific embodiment, the number, size and arrangement of the second oil holes 415 may be identical to or different from those of the first oil holes 15, and various combinations may be performed according to actual needs, for example, the first oil holes 15 are in a single row, and the second oil holes 415 are in two rows. In the embodiment shown in fig. 7, the second oil delivery holes 415 are equal in size, and are uniformly arranged in two rows and in partial arc sections on the inner surface of the second supporting body 411. For example, after the motor is installed and fixed, the arc section is located at the upper half of the second supporting body in the vertical direction, and the advantages are the same as those described above.
In this way, the motor provided by the third embodiment is added with the second flow guiding device 4 to cooperate, so that the cooling effect is further improved. Specifically, by providing the second flow guiding device 4, the cooling oil flowing out from the other end of the oil delivery channel 222 in the first and second embodiments can directly drop down, so that the outer surface area of the cooling oil contacting the winding 224 on the other side of the stator assembly 22 is larger. Because the cooling oil that is directly dropped onto the outer surface of the winding 224 on the other side of the stator assembly 22 will move in the next common direction, i.e., the ground direction, under the influence of gravity, no uniform radial and/or axial movement will be established on the outer surface of the winding 224 on the other side of the stator assembly 22. The second flow guiding device 4 may be configured to uniformly move the cooling oil flowing out from the other end of the oil delivery channel 222 radially and/or axially on the outer surface of the winding 224 at the other side of the stator assembly 22, so as to increase the contact surface area between the cooling oil and the winding 224 at the other side of the stator assembly 22, thereby improving the cooling effect.
In addition, as shown in fig. 7, the outer surface of the second supporting body 411 is further provided with one or more positioning blocks 416, and the number of the positioning blocks 416 may be one or more. When there are a plurality of the positioning blocks 416, the plurality of positioning blocks are equidistantly and annularly arranged in the outer circumferential direction of the second supporting body 411. The positioning block 416 is configured to define a mounting position of the second support body 411 and the stator assembly 22.
In addition, as shown in fig. 5 and 6, a fixing lug 225 is further provided on the periphery of the protruding portion 2211 of the stator core 221 of the stator assembly 22, and the fixing lug 225 is provided with a threaded hole 226 penetrating through the fixing lug 225 in the axial direction, and the stator assembly 22 is fixed in the housing 21 by being engaged with a long screw 227. In the first embodiment, the stator assembly 22 is then secured within the housing 21 by a shrink fit.
In summary, in each embodiment, an oil outlet 211 may be disposed on an end cover of the casing 21 on a side far away from the gearbox (see the specific example shown in fig. 1), and the oil outlet 211 is communicated with the interior of the casing 21; the gearbox 3 is provided with an oil receiving port 32 far away from the oil supply port 31, and the oil receiving port 32 is communicated with the inside of the shell 21.
Further, in an embodiment, a valve (not shown) is disposed in the oil outlet 211, and the valve is used for closing the oil outlet 211 when the motor 2 is not in operation or in the operation process, and only after the motor 2 is in operation for a period of time, the valve is opened, so that part of the cooling oil enters a filtering device (not shown) through the oil outlet 211 to be filtered, so as to reduce the viscosity of the cooling oil, and the filtered cooling oil enters the gearbox 3 again, so as to realize recycling of the cooling oil.
In an embodiment, the number of the first oil delivery pipes 13 is one, and the cross-sectional area of the first oil delivery pipes is much larger than that of the second oil delivery pipes 14, so that cooling oil can be conveniently and quickly delivered from the gearbox 3 into the motor.
Finally, in order to ensure a better sealing effect at the junction between the second oil delivery pipe 14 and the oil delivery channel 222, a leak-proof film is sleeved outside the second oil delivery pipe 14, or leak-proof mud is filled in the oil delivery channel 222.
The motor provided by the application is formed with the oil transportation passageway that link up along the axial on stator module, cooperates with first guiding device, carries the other end from stator module's axial one end to cooling oil, cools off stator module (including winding) axial one end to the other end is whole, has promoted the cooling effect. The first oil conveying hole is formed in the first flow guiding device, the second output hole is formed in the second flow guiding device, the circumferential direction of windings on two sides of the stator assembly is directly cooled, and the cooling effect is further improved. And through the oil delivery channel, the second oil delivery pipe, the third oil delivery pipe, the first oil delivery hole, the second oil delivery hole, the different quantity, the different size and the arrangement of the oil delivery channels, the second oil delivery pipe, the third oil delivery pipe, the first oil delivery hole, the second oil delivery hole and the arrangement of the oil delivery channels, the flow speed and the distribution of cooling oil can be adjusted, so that a better cooling effect can be obtained.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims. Furthermore, the foregoing description of the principles and embodiments of the present application has been provided for the purpose of illustrating the principles and embodiments of the present application and for the purpose of providing a simplified understanding of the principles and embodiments of the present application, and is not intended to limit the scope of the present application.
Claims (10)
1. An electric machine is characterized by comprising a shell, a stator assembly, a rotor and a first flow guiding device; the stator assembly is sleeved on the periphery of the rotor and fixed in the shell, and is provided with an oil conveying channel which is penetrated along the axial direction and windings at two sides of the axial direction; the first flow guiding device comprises a hollow first supporting main body, and a first oil conveying pipe and a second oil conveying pipe which are positioned on two sides of the first supporting main body, wherein the first oil conveying pipe is used for connecting an oil supply port of a gearbox, and the second oil conveying pipe is connected to one end of the oil conveying channel.
2. The motor of claim 1, wherein the oil delivery channels are a plurality of, equal in size or unequal in size, and are uniformly or non-uniformly arranged in the peripheral direction of the stator assembly; the second oil delivery pipes are correspondingly matched with the oil delivery channels, are multiple in number and equal or unequal in size, and are uniformly or non-uniformly distributed in the peripheral direction of the first support main body.
3. The motor of claim 1, wherein the oil delivery channels are a plurality of equal in size and uniformly arranged in the peripheral direction of the stator assembly; the second oil delivery pipes are correspondingly matched with the oil delivery channels, are multiple in number and equal in size, and are uniformly distributed in the peripheral direction of the first support main body.
4. The motor of claim 1, wherein the number of the oil delivery passages is plural, divided into plural groups, and regularly arranged in plural different areas in the outer circumferential direction of the stator assembly; the second oil delivery pipes are correspondingly matched with the oil delivery channels, are multiple in number and divided into multiple groups, and are regularly arranged in multiple different areas in the peripheral direction of the first support main body.
5. The motor of claim 1, wherein the first supporting body is ring-shaped and is sleeved on the periphery of the winding on one side of the stator assembly, and the inner surface of the first supporting body is provided with a first oil transmission hole attached to the outer surface of the winding on one side of the stator assembly.
6. The motor of claim 5, further comprising a second flow guiding device comprising a hollow second support body and a third oil delivery pipe at one side of the second support body, the third oil delivery pipe being connected to the other end of the oil delivery passage;
the second support main body is annular and sleeved on the periphery of the winding on the other side of the stator assembly, and a second oil transmission hole is formed in the inner surface of the second support main body and attached to the outer surface of the winding on the other side of the stator assembly.
7. The motor of claim 6, wherein the first oil holes are a plurality of equal or unequal in number, are in one or more rows, and are uniformly or non-uniformly arranged on the inner surface of the first supporting body;
the second oil conveying holes are multiple in number, equal in size or unequal in size, are in one or more rows, and are uniformly or non-uniformly distributed on the inner surface of the second support main body.
8. The motor of claim 6, wherein the first oil holes are a plurality of arc segments which are equal in size and are uniformly distributed on the inner surface of the first support body in one or two rows; and/or
The second oil holes are multiple in number and equal in size, are in one or two rows, and are uniformly distributed on partial arc sections of the inner surface of the second support main body.
9. The motor of claim 1, wherein an oil outlet is arranged on an end cover of the side, away from the gearbox, of the housing, and the oil outlet is communicated with the interior of the housing; the gearbox is provided with an oil receiving port far away from the oil supply port, and the oil receiving port is communicated with the inside of the shell.
10. The electric machine of claim 1, wherein the number of first oil delivery tubes is one and the cross-sectional area is substantially larger than the cross-sectional area of the second oil delivery tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210684267.1A CN117294077A (en) | 2022-06-16 | 2022-06-16 | Motor with a motor housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210684267.1A CN117294077A (en) | 2022-06-16 | 2022-06-16 | Motor with a motor housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117294077A true CN117294077A (en) | 2023-12-26 |
Family
ID=89252230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210684267.1A Pending CN117294077A (en) | 2022-06-16 | 2022-06-16 | Motor with a motor housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117294077A (en) |
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2022
- 2022-06-16 CN CN202210684267.1A patent/CN117294077A/en active Pending
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