CN221509352U - Motor end cover structure - Google Patents
Motor end cover structure Download PDFInfo
- Publication number
- CN221509352U CN221509352U CN202420139893.7U CN202420139893U CN221509352U CN 221509352 U CN221509352 U CN 221509352U CN 202420139893 U CN202420139893 U CN 202420139893U CN 221509352 U CN221509352 U CN 221509352U
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- Prior art keywords
- cavity
- end cover
- controller
- motor end
- cooling
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- 238000004804 winding Methods 0.000 claims abstract description 20
- 239000000565 sealant Substances 0.000 claims abstract description 4
- 239000000110 cooling liquid Substances 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a motor end cover structure, wherein a baffle plate is arranged in the middle of the end cover, a cover plate is fixed on one side of the baffle plate, a cavity for installing a controller component is formed between the cover plate and the baffle plate, a winding wiring hole and a rotary wiring port which are communicated with a winding circuit and a rotary wiring circuit are also arranged on the baffle plate, the winding wiring hole and the rotary wiring port are covered by the controller component, and sealant is arranged between the periphery of the winding wiring hole and the rotary wiring port and the controller component. The motor end cover provided by the utility model provides an installation space for electronic components of the controller, so that the controller is completely integrated in the motor end cover, and the manufacturing and assembling cost of the controller shell is saved. Meanwhile, the utility model can realize the independent assembly of the controller component and then the assembly of the controller component on the assembly line of the whole machine, thereby reducing the cost of the production line.
Description
Technical Field
The utility model belongs to the field of parts of electric drive assemblies of new energy automobiles, and particularly relates to a motor end cover structure.
Background
The traditional new energy automobile generally adopts a structure that a speed reducer, a driving motor and a motor controller are arranged separately, the arrangement structure can cause overlarge installation space of the whole automobile, the space utilization rate of a motor control system is low, the assembly requirement of the whole automobile system is difficult to meet, and particularly, the cost of the whole motor control system is extremely high.
In the existing bridge integration technology, the electric control, the motor and the speed reducer are designed in a module mode, a motor shaft and an input shaft of the speed reducer are coaxial and assembled together, and the controller is installed above the motor and the speed reducer. Compared with the traditional separation type, the installation support of the external three-phase connector, the power wire harness, the external water pipe of the motor and the speed reducer and the independent component is reduced, and the purpose of saving the cost of the whole vehicle is achieved. However, the controller still needs an independent shell, an external connection circuit still exists between the controller and the rotary transformer and winding in the motor, and meanwhile, the shell of the controller and the motor shell are integrally formed, so that the requirement is high in motor assembly, and damage to electronic elements in the controller is avoided.
Disclosure of utility model
In order to solve the above technical problems, an object of the present utility model is to provide a motor end cover structure, which can provide a controller installation space and help to reduce the volume of the motor.
In order to achieve the above object, the present utility model adopts the following technical scheme:
A motor end cover structure, the end cover middle part is equipped with the baffle, one side of baffle is fixed with the apron, and forms the cavity that is used for installing the controller subassembly between apron and the baffle, still be equipped with on the baffle and with winding circuit and the winding wiring hole that the line passed through of changing soon and change the wiring mouth soon, winding wiring hole and change the wiring mouth soon have the controller subassembly to cover, and be equipped with the sealant between the periphery of winding wiring hole and change the wiring mouth soon and the controller subassembly.
As a preferable scheme: the cooling cavity is formed by a groove on the partition plate and the lower end face of the controller component, and two sides of the cooling cavity are respectively connected with a cooling liquid flow passage A and a cooling liquid flow passage B.
As a preferable scheme: and a sealing cover plate is arranged on the groove on the partition plate, and a cooling cavity inlet and a cooling cavity outlet which are used for being communicated with the cooling liquid flow passage A and the cooling liquid flow passage B are respectively arranged at two opposite angles of the sealing cover plate.
As a preferable scheme: and a cooling liquid inlet pipe communicated with the cooling liquid flow passage A is further arranged on the end cover.
As a preferable scheme: the other side of the partition plate is also provided with a rotary stator mounting cavity, the outer side of the rotary stator mounting cavity is also provided with a bearing mounting cavity, and the rotary stator mounting cavity and the bearing mounting cavity form a step shape.
As a preferable scheme: the bearing mounting cavity is also provided with a plurality of bearing pressing plates at intervals, the bearing pressing plates are in strip shapes and extend towards the axle center.
As a preferable scheme: and the end cover is also provided with a mounting hole for mounting the power supply connecting piece.
Compared with the prior art, the utility model has the beneficial effects that:
The motor end cover provided by the utility model provides an installation space for electronic components of the controller, so that the controller is completely integrated in the motor end cover, and the manufacturing and assembling cost of the controller shell is saved. Meanwhile, the utility model can realize the independent assembly of the controller component and then the assembly of the controller component on the assembly line of the whole machine, thereby reducing the cost of the production line.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic view of the overall construction of an end cap of the present utility model;
FIG. 2 is a schematic view of the internal structure of the end cap of the present utility model with the cover plate removed;
FIGS. 3 and 4 are schematic exploded views of the controller assembly within the end cap at two different angles;
Fig. 5 and 6 are schematic views of the front and back side structure of the end cap (with the cover plate removed).
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Furthermore, in the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
As shown in fig. 1 to 6, in an end cover structure of a motor, a partition board is disposed in the middle of an end cover 2, a cover plate 201 is fixed on one side of the partition board, a chamber for installing a controller component is formed between the cover plate 201 and the partition board, a winding wiring hole 204 and a rotation wiring hole 213 which are connected with a winding circuit and a rotation circuit are further formed in the partition board, the winding wiring hole 204 and the rotation wiring hole 213 are covered by the controller component, and sealant is disposed between the periphery of the winding wiring hole 204 and the rotation wiring hole 213 and the controller component. The electronic components of the controller are completely integrated in the motor end cover, so that the manufacturing and assembly costs of the controller shell are saved.
The controller assembly comprises a power supply connecting piece 8, a circuit board, a winding connecting piece 10 and a power module 9, and the end cover 2 is also provided with a mounting hole 207 for mounting the power supply connecting piece 8. One side of the power module 9 is fixed with the circuit board, the other side is fixed on the partition board, the winding connecting piece 10 is fixed on the partition board, and the winding wiring hole 204 and the rotary change wiring port 213 are covered. The motor cavity and the controller cavity can be completely sealed and separated by gluing and sealing the upper surface and the lower surface of the winding connecting piece 10, so that the influence of volatile matters such as stator insulating paint on electronic components and the like is avoided.
Because the electronic components have higher requirements on the assembly environment, the structure can realize independent assembly of the controller component and then the assembly is carried out on the assembly line of the whole machine, and the production line cost can be reduced. To achieve this objective, all bolt hole sites avoid the PCBA board design, if they cannot be avoided, they are avoided by hole digging, if they cannot be avoided by hole digging, they are avoided by reverse screwing, ensuring that the controller can be integrally assembled.
The baffle of the end cover 2 is also provided with a cooling cavity, the cooling cavity is formed by a groove 211 on the baffle and the lower end face of the controller component, and two sides of the cooling cavity are respectively connected with a cooling liquid flow passage A205 and a cooling liquid flow passage B206. The end cover 2 is further provided with a coolant inlet pipe 202 communicated with the coolant flow channel a. The grooves 211 on the partition plate are provided with sealing cover plates 214, and two opposite angles of the sealing cover plates 214 are respectively provided with a cooling cavity inlet 209 and a cooling cavity outlet 210 which are used for communicating with the cooling liquid flow channel A205 and the cooling liquid flow channel B206. The sealing cover plate can reduce the hollow cavity of the irregular thick part of the middle partition plate of the rear end cover to be plugged, so that the cooling efficiency of the cooling liquid channel is improved.
The structure is integrated into the motor end cover through the cooling liquid channel, so that the risk of bridging cooling liquid channel leakage in the prior art is effectively avoided, the manufacturing cost and the assembly cost of parts such as a water nozzle, a connecting water pipe and a clamp of a traditional external connecting water channel are simultaneously saved, in addition, the processing of a water nozzle mounting hole is also respectively omitted for the machine shell and the end cover, all the problems are solved through a small sealing ring, and the manufacturing cost of the motor is greatly reduced.
Meanwhile, the controller cooling passage is directly arranged on the end cover between the motor cavity and the controller cavity, so that the space is compact, the occupied space is small, and heat in part of the motor cavity can be taken away while the controller power module is cooled.
The other side of the partition board is also provided with a rotary stator mounting cavity 208, and the rotary stator 72 is embedded in the rotary stator mounting cavity 208 and is fastened by an arc-shaped pressing strip 73. The motor cavity is generally assembled outside (in the end cover) by the traditional rotary transformer, and the design often needs to design a rotary transformer shielding cover plate and a rotary transformer sealing ring.
The outer side of the rotary transformer stator mounting cavity 208 is also provided with a bearing mounting cavity, and the rotary transformer stator mounting cavity 208 and the bearing mounting cavity form a step shape. The bearing mounting cavity is also provided with a plurality of bearing pressing plates at intervals, the bearing pressing plates are strip-shaped and extend towards the axle center, and the bearing pressing plates press the bearing. The edge of the bearing mounting cavity is also provided with a limit groove which enables the bearing pressing plate to keep an extending state towards the axle center.
The prior bearing pressing plate assembly generally comprises the steps of firstly installing a bearing into a bearing chamber of an end cover, installing the bearing pressing plate, and finally installing a shaft check ring, but when the end cover is not in communication, the shaft check ring cannot be assembled after the bearing is installed into the end cover, the utility model solves the problem that the shaft check ring cannot be assembled when the end cover is not in communication by designing a unique bearing pressing plate, during installation, the bearing pressing plate is preloaded on the end cover and extends towards the direction away from the axis, after the bearing is installed in the bearing installation cavity, the bearing pressing plate is rotated for 180 degrees, then the bearing pressing plate is screwed down, the purpose of preventing the bearing pressing plate from rotating is achieved through the limiting groove on the end cover, and the situation that the bearing pressing plate in the form of a waist hole cannot be assembled in place in the past can be avoided.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, and any simple modification, equivalent variation and modification of the above embodiments in light of the technical principles of the utility model may be made within the scope of the present utility model.
Claims (7)
1. A motor end cover structure which is characterized in that: the middle part of end cover (2) is equipped with the baffle, one side of baffle is fixed with apron (201), and forms the cavity that is used for installing the controller subassembly between apron (201) and the baffle, still be equipped with on the baffle and with winding wiring hole (204) and the change wiring mouth (213) that change the circuit through soon, winding wiring hole (204) and change wiring mouth (213) soon have the controller subassembly to cover, and be equipped with the sealant between the periphery of winding wiring hole (204) and change wiring mouth (213) and the controller subassembly soon.
2. A motor end cap structure according to claim 1, wherein: the cooling cavity is further formed by grooves (211) in the partition plate and the lower end face of the controller assembly, and two sides of the cooling cavity are respectively connected with a cooling liquid flow passage A (205) and a cooling liquid flow passage B (206).
3. A motor end cap structure according to claim 2, wherein: the cooling device is characterized in that a sealing cover plate (214) is arranged on a groove (211) on the partition plate, and a cooling cavity inlet (209) and a cooling cavity outlet (210) which are used for communicating with the cooling liquid flow channel A (205) and the cooling liquid flow channel B (206) are respectively arranged on two opposite angles of the sealing cover plate (214).
4. A motor end cap structure according to claim 2, wherein: and the end cover (2) is also provided with a cooling liquid inlet pipe (202) communicated with the cooling liquid flow passage A.
5. A motor end cap structure according to claim 1, wherein: the other side of the partition plate is also provided with a rotary stator mounting cavity (208), the outer side of the rotary stator mounting cavity (208) is also provided with a bearing mounting cavity, and the rotary stator mounting cavity (208) and the bearing mounting cavity form a step shape.
6. A motor end cap structure according to claim 5, wherein: the bearing mounting cavity is also provided with a plurality of bearing pressing plates at intervals, the bearing pressing plates are in strip shapes and extend towards the axle center.
7. A motor end cap structure according to claim 1, wherein: the end cover (2) is also provided with a mounting hole (207) for mounting the power supply connecting piece (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202420139893.7U CN221509352U (en) | 2024-01-19 | 2024-01-19 | Motor end cover structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202420139893.7U CN221509352U (en) | 2024-01-19 | 2024-01-19 | Motor end cover structure |
Publications (1)
Publication Number | Publication Date |
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CN221509352U true CN221509352U (en) | 2024-08-09 |
Family
ID=92133928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202420139893.7U Active CN221509352U (en) | 2024-01-19 | 2024-01-19 | Motor end cover structure |
Country Status (1)
Country | Link |
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CN (1) | CN221509352U (en) |
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2024
- 2024-01-19 CN CN202420139893.7U patent/CN221509352U/en active Active
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GR01 | Patent grant |