CN210578000U - Motor and vehicle - Google Patents
Motor and vehicle Download PDFInfo
- Publication number
- CN210578000U CN210578000U CN201921176586.1U CN201921176586U CN210578000U CN 210578000 U CN210578000 U CN 210578000U CN 201921176586 U CN201921176586 U CN 201921176586U CN 210578000 U CN210578000 U CN 210578000U
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- rotor
- motor shaft
- rotor core
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Abstract
The utility model discloses a motor and vehicle, the motor includes: the motor comprises a motor shaft, a rotor core and a rotor bracket, wherein the rotor core is sleeved on the motor shaft; the rotor bracket is arranged between the motor shaft and the rotor core and is respectively and fixedly connected with the motor shaft and the rotor core; wherein, the density of rotor support material is less than the density of rotor core material. According to the utility model discloses a motor replaces the big rotor core of part material density through the spider that adopts material density to be little, has alleviateed the quality of motor, has reduced the cost of motor.
Description
Technical Field
The utility model belongs to the technical field of the vehicle and specifically relates to a motor and vehicle are related to.
Background
With the improvement of life quality, automobiles become indispensable tools for transportation in life, wherein the quality of the motor for the automobiles can directly influence the performance of the automobiles, and particularly in the field of electric automobiles, the motor is used as a main driving system of new energy automobiles to directly determine the quality of the performance of the automobiles. In the related art, the conventional motor has a complicated structure and a heavy weight.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an electric machine. This motor has alleviateed the quality of motor through adopting the little rotor support of material density to replace the big rotor core of part material density, has reduced the cost of motor.
The utility model discloses still provide a vehicle that has above-mentioned embodiment motor.
The motor according to the embodiment of the utility model comprises a motor shaft, a rotor core and a rotor bracket, wherein the rotor core is sleeved on the motor shaft; the rotor bracket is arranged between the motor shaft and the rotor core and is respectively and fixedly connected with the motor shaft and the rotor core; wherein, the density of rotor support material is less than the density of rotor core material.
According to the utility model discloses a motor, through setting up the spider between motor shaft and rotor core, the fixed cover of spider is established on the motor shaft, and the fixed cover of rotor core is established on the spider, and the spider replaces the big rotor core of part material density with rotor core and motor shaft fixed connection, setting up of spider to reduce the overall quality of motor, realized the lightweight, reduced manufacturing cost.
According to the utility model discloses an embodiment, the spider with be provided with the restriction between the motor shaft the spider with the first circumferential locating part of motor shaft relative movement in the circumference, the spider with be provided with the restriction between the rotor core the spider with the second circumferential locating part of rotor core relative movement in the circumference.
According to the utility model discloses an embodiment, first circumferential locating part include first key and with first key complex first keyway, the inside wall of spider with be provided with on one of the lateral wall of motor shaft first key, the inside wall of spider with be provided with on another one of the lateral wall of motor shaft first keyway.
According to an embodiment of the present invention, the second circumferential limiting member includes a second key and a second key groove engaged with the second key, the second key is provided on one of the outer side wall of the rotor bracket and the inner side wall of the rotor core, and the second key groove is provided on the other one of the outer side wall of the rotor bracket and the inner side wall of the rotor core.
According to the utility model discloses an embodiment, the spider with be provided with the restriction between the motor shaft the spider with the first axial locating part of motor shaft relative movement in the axial, the spider with be provided with the restriction between the rotor core the spider with rotor core relative movement's second axial locating part in the axial.
According to an embodiment of the present invention, the rotor bracket is sleeved on the motor shaft, and a first shoulder that abuts against one end of the rotor bracket is disposed on the motor shaft; the motor shaft is further provided with a detachable limiting ring, the limiting ring is suitable for being abutted against the other end of the rotor support, and the first shaft shoulder and the limiting ring are constructed into the first axial limiting part.
According to an embodiment of the present invention, a second shoulder abutting against one end of the rotor core is disposed on the rotor support; the rotor support is further provided with a first pressing plate, and the first pressing plate is opposite to the other end of the rotor core and is abutted against the other end of the rotor core.
According to the utility model discloses an embodiment, second shoulder department is provided with the second clamp plate, rotor core the other end with the second clamp plate ends.
According to an embodiment of the invention, the rotor support is constructed as an aluminium alloy part.
The vehicle according to the present invention is briefly described below.
According to the utility model discloses a be provided with the motor of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with above-mentioned embodiment motor on the vehicle, consequently the quality of the motor of this vehicle is light to reduce the quality of whole car, reduced the cost of this vehicle.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a cross-sectional view of an electric machine according to an embodiment of the present invention;
fig. 2 is an exploded view of a motor according to an embodiment of the present invention;
fig. 3 is a schematic view of a rotor support according to an embodiment of the invention;
fig. 4 is a schematic view of a rotor core according to an embodiment of the invention.
Reference numerals:
the motor (100) is provided with a motor,
the motor shaft 110, the first key groove 111, the first shoulder 112,
the rotor core 120, the second key 121,
a rotor bracket 130, a first key 131, a second key groove 132, a second shoulder 133, a threaded hole 134,
the device comprises a limiting ring 101, a first pressing plate 102, a through hole 102a, a second pressing plate 103 and a fastener 104.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
An electric machine 100 according to an embodiment of the present invention is described below with reference to fig. 1-4.
As shown in fig. 1 and fig. 2, a motor 100 according to an embodiment of the present invention includes a motor shaft 110, a rotor core 120, and a rotor bracket 130, wherein the rotor core 120 is sleeved on the motor shaft 110; the rotor bracket 130 is disposed between the motor shaft 110 and the rotor core 120 and is respectively fixedly connected to the motor shaft 110 and the rotor core 120; the material density of the rotor bracket 130 is less than that of the rotor core 120.
In the embodiment as shown in fig. 1 and 2, the rotor core 120 may be configured in a cylindrical structure, and the rotor holder 130 is also configured in a cylindrical structure. The rotor bracket 130 is disposed between the motor shaft 110 and the rotor core 120, the motor shaft 110 is disposed inside the cylindrical structure of the rotor bracket 130, the inner circumferential wall of the rotor bracket 130 can be tightly attached to the outer circumferential wall of the motor shaft 110, the rotor bracket 130 is disposed inside the cylindrical structure of the rotor core 120 after being matched with the motor shaft 110, and the outer circumferential wall of the rotor bracket 130 can be tightly attached to the inner circumferential wall of the rotor core 120. The rotor bracket 130 is sleeved on the periphery of the motor shaft 110, and the rotor core 120 is sleeved on the periphery of the rotor bracket 130, so that the rotor core 120 is fixedly connected with the motor shaft 110, and a rotor part of the motor is formed.
In the related art, the motor shaft 110 is directly connected to the rotor core 130. The utility model discloses in, through the connection of spider 130 with rotor core 120 and motor shaft 110, spider 130 has replaced partial rotor core 120, has reduced rotor core 120's volume to the density of spider 130 material is less than the density of rotor core 120 material, through setting up spider 130, makes the holistic weight reduction of motor 100, has realized the lightweight of motor 100, has reduced the cost of motor 100.
According to the utility model discloses a motor 100, through setting up spider 130 between motor shaft 110 and rotor core 120, the fixed cover of spider 130 is established on motor shaft 110, and the fixed cover of rotor core 120 is established on spider 130, and spider 130 replaces rotor core 120 that part material density is big with rotor core 120 and motor shaft 110 fixed connection, setting up of spider 130 to reduced motor 100's overall quality, realized the lightweight.
According to an embodiment of the present invention, a first circumferential limiting part is disposed between the rotor bracket 130 and the motor shaft 110 for limiting the relative movement of the rotor bracket 130 and the motor shaft 110 in the circumferential direction, and a second circumferential limiting part is disposed between the rotor bracket 130 and the rotor core 120 for limiting the relative movement of the rotor bracket 130 and the rotor core 120 in the circumferential direction.
In the process of high-speed rotation of the motor 100, the rotor bracket 130 and the motor shaft 110 tend to move relatively in the circumferential direction, and a first circumferential limiting part which limits the relative movement of the motor shaft 110 and the rotor bracket 130 in the circumferential direction is arranged between the motor shaft 110 and the rotor bracket 130, so that the relative movement between the motor shaft 110 and the rotor bracket 130 in the circumferential direction is effectively avoided, the transmission stability between the motor shaft 110 and the rotor bracket 130 is ensured, and the reliability of the motor 100 is improved.
Similarly, in the process of high-speed rotation of the motor 100, the rotor holder 130 and the rotor core 120 tend to move relatively in the circumferential direction, and a second circumferential limiting member that limits the relative movement between the rotor core 120 and the rotor holder 130 in the circumferential direction is disposed between the rotor core 120 and the rotor holder 130, so that the relative movement between the rotor core 120 and the rotor holder 130 in the circumferential direction is effectively avoided, stable transmission between the rotor holder 130 and the rotor core 120 is ensured, and the reliability of the motor 100 is improved.
According to an embodiment of the present invention, the first circumferential limiting member includes a first key 131 and a first key groove 111 engaged with the first key 131, the first key 131 is disposed on one of the inner sidewall of the rotor bracket 130 and the outer sidewall of the motor shaft 110, and the first groove 111 is disposed on the other of the inner sidewall of the rotor bracket 130 and the outer sidewall of the motor shaft 110.
The first key 131 is matched with the first key groove 111 to form a first circumferential limiting piece, the first key 131 can be arranged on the inner circumferential wall of the rotor support 130, the first key groove 111 can be correspondingly arranged on the outer side wall of the motor shaft 110, the first key groove 111 receives the first key 131 in the first key groove 111, and one circumferential side wall of the first key 131 is abutted against the corresponding side wall of the first key groove 111, so that when the motor shaft 110 rotates, the first key 131 is matched with the first key groove 111 and transmits the torque of the motor shaft 110 to the rotor support 130, and through the matching of the first key groove 111 and the first key 131, the reliability of the rotation of the motor shaft 110 and the rotor support 130 is ensured, and the relative rotation between the rotor support 130 and the motor shaft 110 is prevented.
Further, a key groove for accommodating the first key 131 is formed in the rotor support 130, and the key groove formed in the rotor support 130 can ensure stable transmission of torque between the first key 131 and the rotor support.
In one embodiment of the present application, a first key groove 111 is formed on an outer side wall of the motor shaft 110, the first key groove extends along an axial direction of the motor shaft 110, and a first key 131 is formed on an inner side wall of the rotor bracket 130, and the first key 131 may be an a-type flat key of 12 × 8 × 150.
According to an embodiment of the present invention, the second circumferential limiting member includes a second key 121 and a second key groove 132 engaged with the second key 121, the second key 121 is disposed on one of the outer sidewall of the rotor bracket 130 and the inner sidewall of the rotor core 120, and the second key groove 132 is disposed on the other one of the outer sidewall of the rotor bracket 130 and the inner sidewall of the rotor core 120.
The second key 121 and the second key groove 132 cooperate to form a second circumferential limiting member, the second key 121 may be disposed on an inner sidewall of the rotor core 120, the second key groove 132 may be correspondingly disposed on an outer sidewall of the rotor bracket 130, the second key groove 132 receives the second key 121 in the second key groove 132, and a sidewall of the second key groove 132 in the circumferential direction abuts against a sidewall of the second key 121, so as to transmit the torque to the rotor core 120 during the rotation of the rotor bracket 130. Through the cooperation of the second key groove 132 and the second key 121, the reliability of the rotor core 120 and the rotor support 130 in the rotating process is ensured, and the relative movement of the rotor core 120 and the rotor support 130 in the circumferential direction is limited.
According to an embodiment of the present invention, a first axial limiting member is disposed between the rotor bracket 130 and the motor shaft 110 for limiting the relative movement of the rotor bracket 130 and the motor shaft 110 in the axial direction, and a second axial limiting member is disposed between the rotor bracket 130 and the rotor core 120 for limiting the relative movement of the rotor bracket 130 and the rotor core 120 in the axial direction.
The first axial limiting member limits the relative movement of the motor shaft 110 and the rotor support 130 in the axial direction, and the second axial limiting member limits the relative movement of the rotor core 120 and the rotor support 130 in the axial direction, so as to ensure stable and reliable transmission among the motor shaft 110, the rotor support 130 and the rotor core 120 when the motor works.
According to an embodiment of the present invention, the rotor bracket 130 is sleeved on the motor shaft 110, and the motor shaft 110 is provided with a first shoulder 112 abutting against one end of the rotor bracket 130; the motor shaft 110 is further provided with a detachable limiting ring 101, the limiting ring 101 is adapted to abut against the other end of the rotor bracket 130, and the first shoulder 112 and the limiting ring 101 are configured as a first axial limiting member.
The outer diameter of the first shoulder 112 is larger than the inner diameter of the rotor holder 130, and the axial end of the rotor holder 130 abuts against the axial end of the first shoulder 112 to limit the axial movement of the rotor holder 130 in one direction; one end of the limiting ring 101 in the axial direction abuts against the other end of the motor shaft 110 in the axial direction. Limiting the movement of the rotor holder 130 in the axial direction in the other direction. Through the arrangement of the first shoulder 112 and the limiting ring 101, the rotor bracket 130 can be stably matched with the motor shaft 110, and the rotor bracket 130 is prevented from moving in the axial direction of the motor shaft 110.
According to an embodiment of the present invention, the limiting ring 101 is detachably disposed on the motor shaft 110, so as to facilitate the installation of the motor shaft 110 and the rotor bracket 130, and reduce the difficulty in installing the motor shaft 110 and the rotor bracket 130.
According to an embodiment of the present invention, the rotor bracket 130 is provided with a second shoulder 133 abutting against one end of the rotor core 120; the rotor bracket 130 is further provided with a first pressing plate 102, and the first pressing plate 102 is opposite to the other end of the rotor core 120 and abuts against the other end of the rotor core 120.
One end of rotor support 130 is provided with second shaft shoulder 133, and the external diameter of second shaft shoulder 133 is greater than the external diameter of rotor support 130 perisporium, and rotor core 120 cover is established on rotor support 130, and the external diameter of second shaft shoulder 133 is greater than the internal diameter of rotor core 120, and one end of rotor core 120 and second shaft shoulder 133 top stop in the axial. The second shoulder 133 restricts the axial movement of the rotor holder 130 and the rotor core 120 in one direction.
The other end of the rotor support 130 is provided with a first pressing plate 102, the first pressing plate 102 is provided with a through hole 102a, the other end of the rotor support 130 is provided with a threaded through hole 102a, a fastener 104 penetrates through the through hole 102a of the first pressing plate 102 to be matched with a threaded hole 134 of the rotor support 130, the first pressing plate 102 is fixedly connected with the rotor support 130, the first pressing plate 102 is abutted against one end of the rotor core 120, and the first pressing plate 102 limits axial movement of the rotor core 120 and the rotor support 130 in the other direction.
Through the arrangement of the second shoulder 133 and the first pressure plate 102, the axial movement of the rotor core 120 on the rotor bracket 130 can be limited, and the reliability of the fit between the rotor core 120 and the rotor bracket 130 is ensured.
According to the utility model discloses an embodiment can set up second clamp plate 103 in second shoulder 133 department, and the terminal surface of second clamp plate 103 in the axial is ended with second shoulder 133 and is supported, and another terminal surface of second clamp plate 103 ends with rotor core 120's one end and supports, and second clamp plate 103 constructs for the annular, can improve second clamp plate 103 and rotor core 120's area of contact, has further promoted rotor core 120 at the spacing effect of axial.
According to the utility model discloses an embodiment, spider 130 constructs for the aluminum alloy spare, and spider 130 density of aluminum alloy material is less than the rotor core 120 density of silicon steel material, adopts the aluminum alloy spare as spider 130 can reduce motor 100's whole quality, has realized motor 100's lightweight design.
The vehicle according to the present invention is briefly described below.
According to the utility model discloses a be provided with motor 100 of above-mentioned embodiment on the vehicle, owing to be according to the utility model discloses a be provided with above-mentioned embodiment motor 100 on the vehicle, consequently the quality of motor 100 of this vehicle is light to reduce the quality of whole car, reduced the cost of this vehicle.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An electric machine, comprising:
a motor shaft;
the rotor iron core is sleeved on the motor shaft;
the rotor bracket is arranged between the motor shaft and the rotor core and is respectively and fixedly connected with the motor shaft and the rotor core; wherein
The density of the rotor bracket material is less than that of the rotor core material.
2. The motor of claim 1, wherein a first circumferential limiting member is disposed between the rotor bracket and the motor shaft for limiting relative movement of the rotor bracket and the motor shaft in the circumferential direction, and a second circumferential limiting member is disposed between the rotor bracket and the rotor core for limiting relative movement of the rotor bracket and the rotor core in the circumferential direction.
3. The motor of claim 2, wherein the first circumferential stop comprises a first key and a first keyway cooperating with the first key, the first key being disposed on one of an inner sidewall of the spider and an outer sidewall of the motor shaft, and the first keyway being disposed on the other of the inner sidewall of the spider and the outer sidewall of the motor shaft.
4. The electric machine of claim 2, wherein the second circumferential stop comprises a second key and a second keyway cooperating with the second key, the second key being disposed on one of an outer sidewall of the spider and an inner sidewall of the rotor core, and the second keyway being disposed on the other of the outer sidewall of the spider and the inner sidewall of the rotor core.
5. The motor of claim 1, wherein a first axial stop is disposed between the rotor bracket and the motor shaft to limit relative axial movement of the rotor bracket and the motor shaft, and a second axial stop is disposed between the rotor bracket and the rotor core to limit relative axial movement of the rotor bracket and the rotor core.
6. The motor of claim 5, wherein the rotor bracket is sleeved on the motor shaft, and a first shoulder is arranged on the motor shaft and abuts against one end of the rotor bracket;
the motor shaft is further provided with a detachable limiting ring, the limiting ring is suitable for being abutted against the other end of the rotor support, and the first shaft shoulder and the limiting ring are constructed into the first axial limiting part.
7. The motor of claim 5, wherein the rotor bracket is provided with a second shoulder which abuts against one end of the rotor core;
the rotor support is further provided with a first pressing plate, and the first pressing plate is opposite to the other end of the rotor core and is abutted against the other end of the rotor core.
8. The electric machine according to claim 7, wherein a second pressing plate is provided at the second shoulder, and the other end of the rotor core abuts against the second pressing plate.
9. The electric machine according to any of claims 1-8, characterized in that the rotor support is constructed as an aluminium alloy piece.
10. A vehicle, characterized in that it comprises an electric machine according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921176586.1U CN210578000U (en) | 2019-07-24 | 2019-07-24 | Motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921176586.1U CN210578000U (en) | 2019-07-24 | 2019-07-24 | Motor and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210578000U true CN210578000U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921176586.1U Active CN210578000U (en) | 2019-07-24 | 2019-07-24 | Motor and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210578000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886742A (en) * | 2021-01-20 | 2021-06-01 | 浙江达可尔汽车电子科技有限公司 | Oil-cooled motor rotor |
| EP4199319A4 (en) * | 2021-01-05 | 2024-04-24 | Jing-Jin Electric Technologies Co., Ltd. | Rotor structure for reducing operating temperature in shaft |
-
2019
- 2019-07-24 CN CN201921176586.1U patent/CN210578000U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4199319A4 (en) * | 2021-01-05 | 2024-04-24 | Jing-Jin Electric Technologies Co., Ltd. | Rotor structure for reducing operating temperature in shaft |
| CN112886742A (en) * | 2021-01-20 | 2021-06-01 | 浙江达可尔汽车电子科技有限公司 | Oil-cooled motor rotor |
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