CN113410935A - In-wheel motor - Google Patents
In-wheel motor Download PDFInfo
- Publication number
- CN113410935A CN113410935A CN202110574446.5A CN202110574446A CN113410935A CN 113410935 A CN113410935 A CN 113410935A CN 202110574446 A CN202110574446 A CN 202110574446A CN 113410935 A CN113410935 A CN 113410935A
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- Prior art keywords
- voltage
- stator
- low
- junction box
- disc structure
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- 239000000498 cooling water Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a hub motor, which comprises a rotor assembly, a bearing assembly and a stator assembly, wherein the stator assembly comprises a stator support and a stator coil, the stator support comprises a disc structure and a cylinder structure, the disc structure and the cylinder structure are integrally and coaxially arranged, and the stator coil is arranged around the periphery of the cylinder structure; the stator support is provided with a high-voltage junction box and a low-voltage connector; the high-voltage junction box is arranged on one side of the disc structure, and the three-phase high-voltage wire of the stator coil penetrates through the disc structure and is inserted into the high-voltage junction box; a wire holder is arranged in the high-voltage junction box and used for connecting a three-phase high-voltage wire of the stator coil and an external high-voltage wire harness; the low-voltage connector is fixedly installed at the center of the disc structure, and two ends of the low-voltage connector are respectively connected with the output end of a low-voltage wire harness inside the hub motor and the input end of an external controller of the hub motor. The invention adopts a novel low-voltage wire harness outgoing mode, thereby optimizing the spatial layout of the hub motor.
Description
Technical Field
The invention relates to the technical field of motors for electric automobiles, in particular to a hub motor.
Background
The hub motor integrates power, transmission and braking devices into the hub, so that the mechanical part of the electric vehicle is greatly simplified, the driving mode can shorten the transmission path of the power, and the whole power transmission system is cancelled, thereby improving the transmission efficiency of the vehicle.
In the low-speed outer rotor type hub motor, the motor installation space is very limited, the stator assembly is composed of an armature assembly and a stator support, the armature assembly comprises a stator core, an insulating framework, a stator coil and a slot wedge, the stator support is used for supporting the stator core on one hand, and the stator support comprises a water channel cooling structure for cooling the motor on the other hand.
Other positions of the stator supporting end face are provided with occupied spaces of other parts of the whole vehicle, such as a torque beam adapter plate, a brake disc and the like, so that high-voltage wire harness outlet space and low-voltage wire harness outlet space are restricted. Due to the compact space, the low-voltage connectors cannot be arranged on the terminal box of the high-voltage line outlet like a conventional motor. The traditional high-voltage and low-voltage outgoing line mode also has the risk of mutual interference, and the high-voltage and low-voltage wiring harnesses are required to be separated by convex ribs.
In order to meet the requirement of optimizing and arranging the limited space of the hub motor, a low-voltage wire harness outlet mode in the limited space needs to be developed, and the installation requirement of a low-voltage connector is met.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the hub motor, and a novel low-voltage wire harness outgoing mode is adopted, so that the spatial layout of the hub motor is optimized, and the installation requirement of a low-voltage connector is met.
The technical scheme for solving the technical problems is as follows: the hub motor comprises a rotor assembly, a bearing assembly and a stator assembly, wherein the stator assembly comprises a stator support and a stator coil, the stator support comprises a disc structure and a cylinder structure, the disc structure and the cylinder structure are integrally and coaxially arranged, and the stator coil is arranged around the periphery of the cylinder structure; the stator support is characterized in that a high-voltage junction box and a low-voltage connector are further arranged on the stator support;
the high-voltage junction box is arranged on one side of the disc structure of the stator support, and the three-phase high-voltage wire of the stator wire package penetrates through the disc structure of the stator support and is inserted into the high-voltage junction box; a wire holder is arranged in the high-voltage junction box, and two ends of the wire holder are respectively connected with the three-phase high-voltage wire of the stator coil and the high-voltage wire harness of the external power supply;
the low-voltage connector is fixedly installed at the center of a disc structure supported by the stator, and two ends of the low-voltage connector are respectively connected with the output end of a low-voltage wire harness inside the hub motor and the input end of an external controller of the hub motor.
Furthermore, the edge of the high-voltage junction box is fixedly and hermetically connected with a disc structure supported by the stator, a first through hole is formed in the high-voltage junction box, and the external high-voltage wiring harness penetrates through the first through hole and is hermetically fixed through a sealing joint.
Furthermore, the hub motor also comprises a rotary transformer, wherein a stator of the rotary transformer is positioned in a cylinder structure supported by the stator and is arranged at the central position of a disc structure supported by the stator, and the output end of the rotary transformer is electrically connected with the low-voltage connector.
Furthermore, a cooling water channel is arranged in the cylinder structure supported by the stator, and a water inlet and a water outlet of the cooling water channel are both arranged on the disc structure supported by the stator.
Further, be provided with temperature sensor in the stator solenoid, temperature sensor's signal output part passes the disc structure that the stator supported inserts in the terminal box, the disc structure that the stator supported has still seted up the second through-hole for the intercommunication inside the terminal box with inside the drum structure that the stator supported, temperature sensor's signal output part passes through the wire converge the inside low pressure pencil of in-wheel motor behind the second through-hole with the low pressure connector electricity is connected.
Furthermore, a restraint piece is further arranged in the high-voltage connection box and used for restraining and fixing the redundant low-voltage wiring harnesses in the high-voltage connection box.
Furthermore, the restraint piece comprises a binding belt and a bolt, the binding belt is used for binding the redundant low-voltage wiring harness, and the bolt is used for fixing the bound low-voltage wiring harness in the high-voltage connection box.
The invention has the beneficial effects that: under the limited space of the hub motor stator support, the unique low-voltage wire harness outgoing mode of the motor effectively utilizes the limited space of the hub motor, and leads out separately from the high-voltage wire harness, so that the safe operation of the hub motor is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a hub motor according to an embodiment of the present invention;
fig. 2 is a schematic view of an assembly structure of the in-wheel motor except for the high-voltage junction box according to the embodiment of the invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the motor comprises a motor rotor assembly, 2, a bearing assembly, 3, a stator assembly, 4, a high-voltage junction box, 5, a rotary transformer, 6, a low-voltage connector, 32, a stator support, 41, a wire holder, 42 and a wiring terminal.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides an in-wheel motor, which includes a motor rotor assembly 1, a bearing assembly 2, a stator assembly 3, a high-voltage terminal box 4, and a low-voltage connector 6. The stator assembly 3 comprises a stator coil and a stator support 32, wherein the stator support 32 is formed by a disc and a cylinder structure, and the disc and the cylinder are coaxially and integrally molded. The stator coil 21 is arranged around the cylinder, and the stator support 32 not only plays a role in supporting the stator coil 3, but also comprises a water channel cooling structure inside the stator support 32 for cooling the motor.
Rotor assembly 1 is connected with stator assembly 3 through bearing assembly 2, and the outer lane and the stator assembly fixed connection of bearing in the bearing assembly, the inner circle and the rotor assembly 1 fixed connection of bearing. In a cylinder structure supported by a stator, a rotary transformer 5 (referred to as a rotary transformer) is further mounted at the center of a disc structure, the rotary transformer 5 comprises a rotary transformer stator and a rotary transformer rotor, the rotary transformer stator is fixedly connected with the stator assembly, the rotary transformer rotor is connected with an inner ring of a bearing in the bearing assembly through a pin shaft, the rotary transformer 5 is actually used as a position sensor, the rotation of the rotary transformer is actually synchronous with the rotation of the hub motor, and the relative position relationship between the rotor and the stator of the hub motor can be indirectly judged through an output signal of the rotary transformer 5. The output signal of the resolver 5 is output to an external controller through a low-voltage harness.
The high-voltage junction box 4 is arranged on one side of the disc structure of the stator support, and a three-phase high-voltage wire of a stator coil penetrates through the disc structure of the stator support and then is inserted into the high-voltage junction box; a wiring seat 41 is arranged in the high-voltage wiring box, a wiring terminal 42 is arranged on the wiring seat, and two ends of the wiring terminal 42 are respectively connected with the three-phase high-voltage wire of the stator coil and the high-voltage wire harness of the external power supply.
Specifically, high-voltage junction box 4 is a one side open-ended lid column structure, and 4 open-ended one side borders of high-voltage junction box are fixed and sealing connection with the disc structure that the stator supported, have seted up first through-hole on the high-voltage junction box 4, and external power source's high-voltage wire harness passes first through-hole, connects on the connection terminal in the high-voltage junction box, and high-voltage wire harness passes through sealing joint and 4 fixed sealing connection of high-voltage junction box simultaneously. In this embodiment, the sealing joint is a metal cable waterproof joint.
The low-voltage connector 6 is fixedly installed at the center of a disc structure supported by the stator, and two ends of the low-voltage connector 6 are respectively connected with the output end of a low-voltage wire harness in the hub motor and the input end of an external controller of the hub motor.
The hub motor needs to work in a certain temperature range, and when the temperature of the hub motor is high, the speed of inlet and outlet water in the cooling water channel needs to be controlled, so that the cooling of a stator coil of the hub motor is realized. Therefore, a temperature sensor needs to be installed in the stator coil, and an output signal of the temperature sensor belongs to a low-voltage signal, and a low-voltage wire harness is also needed to be output to an external controller. Because the stator supports the inside cooling water course that is equipped with, it is risky to walk the line if the trompil of direct on the drum structure of stator support is gone up, simultaneously because the space is narrow and small also inconvenient to walk the line in drum structure trompil. In this embodiment, therefore, the signal output of the temperature sensor is inserted into the junction box through the disc structure of the stator support. The disc structure of the stator support is provided with a through hole for communicating the inside of the junction box with the inside of the cylinder structure of the stator support, and the signal output end of the temperature sensor penetrates through the through hole through a wire and then is converged into a low-voltage wire harness inside the hub motor to be electrically connected with the low-voltage connector.
Still be equipped with the restraint piece in high-pressure terminal box for it is fixed to retrain the redundant low pressure pencil in the high-pressure terminal box, it is specific, this restraint piece includes ribbon and bolt, the ribbon is used for tieing redundant low pressure pencil, the bolt is used for fixing the low pressure pencil after tieing in the high-pressure terminal box. The risk that redundant low-voltage wire harnesses are scraped when the motor rotor rotates and then low-voltage signal transmission is influenced is reduced. And meanwhile, the high-voltage wire and the low-voltage wire are separately led out, so that the risk of mutual interference of high-voltage wire harnesses and low-voltage wire harnesses is reduced.
Under the limited space of the hub motor stator support, the unique low-voltage wire harness outgoing mode of the motor effectively utilizes the limited space of the hub motor, and leads out separately from the high-voltage wire harness, so that the safe operation of the hub motor is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The hub motor comprises a rotor assembly, a bearing assembly and a stator assembly, wherein the stator assembly comprises a stator support and a stator coil, the stator support comprises a disc structure and a cylinder structure, the disc structure and the cylinder structure are integrally and coaxially arranged, and the stator coil is arranged around the periphery of the cylinder structure; the stator support is characterized in that a high-voltage junction box and a low-voltage connector are further arranged on the stator support;
the high-voltage junction box is arranged on one side of the disc structure of the stator support, and the three-phase high-voltage wire of the stator wire package penetrates through the disc structure of the stator support and is inserted into the high-voltage junction box; a wire holder is arranged in the high-voltage junction box and used for connecting a three-phase high-voltage wire of the stator coil and an external high-voltage wire harness;
the low-voltage connector is fixedly installed at the center of a disc structure supported by the stator, and two ends of the low-voltage connector are respectively connected with the output end of a low-voltage wire harness inside the hub motor and the input end of an external controller of the hub motor.
2. The in-wheel motor of claim 1, wherein the edge of the high-voltage junction box is fixedly and hermetically connected with the disc structure supported by the stator, a first through hole is formed in the high-voltage junction box, and the external high-voltage wiring harness penetrates through the first through hole and is hermetically fixed through a sealing joint.
3. The in-wheel motor of claim 1, further comprising a rotary transformer having a stator disposed within the cylindrical structure of the stator support and centered within the disc structure of the stator support, wherein the output of the rotary transformer is electrically connected to the low voltage connector.
4. The in-wheel motor according to claim 1, wherein the cylindrical structure of the stator support has a cooling water channel therein, and the water inlet and the water outlet of the cooling water channel are both disposed on the disc structure of the stator support.
5. The in-wheel motor according to claim 1, wherein a temperature sensor is arranged in the stator coil, a signal output end of the temperature sensor penetrates through a disc structure supported by the stator and is inserted into the junction box, a second through hole is further formed in the disc structure supported by the stator and is used for communicating the inside of the junction box with the inside of a cylinder structure supported by the stator, and the signal output end of the temperature sensor penetrates through the second through hole through a lead and then is converged into a low-voltage wiring harness inside the in-wheel motor to be electrically connected with the low-voltage connector.
6. The in-wheel motor according to claim 1, wherein a restraint member is further arranged in the high-voltage connection box, and the restraint member is used for restraining and fixing redundant low-voltage wiring harnesses in the high-voltage connection box.
7. The in-wheel motor of claim 6, wherein the restraint comprises a tie for tightening redundant low voltage wire harnesses and a bolt for securing the tightened low voltage wire harnesses within the high voltage junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110574446.5A CN113410935A (en) | 2021-05-25 | 2021-05-25 | In-wheel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110574446.5A CN113410935A (en) | 2021-05-25 | 2021-05-25 | In-wheel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113410935A true CN113410935A (en) | 2021-09-17 |
Family
ID=77675023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110574446.5A Pending CN113410935A (en) | 2021-05-25 | 2021-05-25 | In-wheel motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113410935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872367A (en) * | 2021-09-22 | 2021-12-31 | 东风电驱动系统有限公司 | In-wheel motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257233A (en) * | 2007-12-06 | 2008-09-03 | 董建国 | Insert shaft type hub electric motor and electric automobile |
| CN106357074A (en) * | 2016-09-28 | 2017-01-25 | 深圳市雅腾电机有限公司 | Hub motor for robot walking system |
| CN106953462A (en) * | 2017-03-30 | 2017-07-14 | 深圳先进技术研究院 | hub motor |
| CN107482867A (en) * | 2017-08-21 | 2017-12-15 | 彭希南 | A kind of three-phase permanent brushless DC hub motor |
| CN109617317A (en) * | 2018-12-25 | 2019-04-12 | 宁波圣龙汽车动力系统股份有限公司 | A kind of liquid-cooled hub motor |
| CN112436666A (en) * | 2020-10-15 | 2021-03-02 | 东风汽车集团有限公司 | In-wheel motor |
-
2021
- 2021-05-25 CN CN202110574446.5A patent/CN113410935A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257233A (en) * | 2007-12-06 | 2008-09-03 | 董建国 | Insert shaft type hub electric motor and electric automobile |
| CN106357074A (en) * | 2016-09-28 | 2017-01-25 | 深圳市雅腾电机有限公司 | Hub motor for robot walking system |
| CN106953462A (en) * | 2017-03-30 | 2017-07-14 | 深圳先进技术研究院 | hub motor |
| CN107482867A (en) * | 2017-08-21 | 2017-12-15 | 彭希南 | A kind of three-phase permanent brushless DC hub motor |
| CN109617317A (en) * | 2018-12-25 | 2019-04-12 | 宁波圣龙汽车动力系统股份有限公司 | A kind of liquid-cooled hub motor |
| CN112436666A (en) * | 2020-10-15 | 2021-03-02 | 东风汽车集团有限公司 | In-wheel motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872367A (en) * | 2021-09-22 | 2021-12-31 | 东风电驱动系统有限公司 | In-wheel motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210917 |
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| RJ01 | Rejection of invention patent application after publication |