Brushless Motor

Abstract

The present invention discloses a brushless motor, comprising: a stator base; a rotor rotatably mounted on the stator base; a stator winding, contained in the rotor; and an adapter ring plate detachably mounted on the inner side of the stator base, the adapter ring plate being formed with a plurality of limiting flanges, the limiting flanges being provided with limiting holes, a plurality of adapter ring plates being provided with a plurality of lock holes, conductive pins being inserted into the lock holes, a plurality of through holes being provided on the stator base, a first end being provided through the through holes and extending to the outer side of the stator base, a second end being connected with a conductive plate installed in the limiting holes, a plug hole being provided, a copper bar of a bus being detachably inserted into the plug hole, conductive spring sheets being formed on opposite sides of an end of the plug hole facing away from the bus bar, and the conductive spring sheets on both sides of the plug hole being pressed against opposite sides of the copper bar. The present invention solves the problem that the automobile adopts a variety of pin-in methods, resulting in a variety of models and sizes of auxiliary motors used in the automobile, and thus resulting in high automobile manufacturing and maintenance costs.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a brushless motor. Background Art

[0002] Automobiles need to use a variety of motors for auxiliary driving, such as steering and window opening. Due to the limitations of the interior space of the car and the various pin-in methods used by various models of cars, the models and sizes of motors vary, which increases the manufacturing and maintenance costs of the car.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0004] In order to overcome the defects of the prior art, a brushless motor is provided to solve the problem that the various pin-in power supply methods used in automobiles lead to the diversification of the models and sizes of auxiliary motors used in automobiles, which in turn leads to high automobile manufacturing and maintenance costs.

[0005] To achieve the above object, a brushless motor is provided, comprising:

[0006] Stator base;

[0007] The rotor comprises a housing rotatably mounted on the stator base via a rotating shaft and a magnet fixed to the inner wall of the housing;

[0008] a stator winding, disposed in the accommodating shell and opposite to the magnet, wherein a bus bar is connected to a side of the stator winding facing the stator base; and

[0009] An adapter ring plate is detachably mounted on the inner side of the stator base, the adapter ring plate being formed with a plurality of limiting flanges, the limiting flanges being provided with limiting holes, the plurality of adapter ring plates being provided with a plurality of locking holes, conductive pins being inserted into the locking holes, the conductive pins having a first end and a second end opposite to each other, the stator base being provided with a plurality of through holes, the positions of the plurality of through holes corresponding one-to-one to the positions of the plurality of locking holes, the first end being passed through the through holes and extending to the outside of the stator base, the second end being connected to a conductive plate installed in the limiting hole, the conductive plate being provided with a socket, the copper busbar of the busbar being detachably inserted into the socket, conductive spring sheets being formed on opposite sides of an end of the socket facing away from the busbar, the conductive spring sheets on both sides of the socket being pressed against opposite sides of the copper busbar.

[0010] Furthermore, a protective sleeve is formed at one end of the lock hole facing the stator base, the first end of the conductive pin is inserted into the protective sleeve, and the protective sleeve is inserted into the through hole with interference fit.

[0011] Furthermore, the inner diameter of the through hole gradually decreases from one end of the through hole close to the inner side of the stator base to the other end of the through hole away from the inner side of the stator base.

[0012] Furthermore, the conductive plate is a beryllium copper plate.

[0013] Furthermore, the conductive plate and the conductive spring are integrally formed.

[0014] Furthermore, a plurality of the limiting flanges are arranged at intervals along the circumferential direction of the adapter ring plate.

[0015] Furthermore, the plurality of limiting flanges are symmetrically arranged on opposite sides of the adapter ring plate.

[0016] The beneficial effect of the present invention is that the brushless motor of the present invention installs the stator winding on the stator base through the adapter ring plate, and when adapting to the power supply interface on the car of different sizes, the different interfaces can be adapted to drive the rotor by replacing different stator bases. In order to adapt to power supply interfaces of different sizes, it is only necessary to adapt the positions of multiple perforations on the stator base and adapter ring plates of different sizes, and the rotor and stator winding of the brushless motor can be standardized and platform-based, so that the production cost and maintenance cost of the motor of the car are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 Schematic diagram of the structure of a brushless motor according to an embodiment of the present invention.

[0019] Figure 2 Schematic diagram of the internal structure of a brushless motor according to an embodiment of the present invention.

[0020] Figure 3 The figure is a schematic diagram of the exploded structure of the stator winding and the adapter ring plate according to an embodiment of the present invention.

[0021] Figure 4 Schematic diagram of the structure of the copper busbar according to an embodiment of the present invention.

[0022] Figure 5 Schematic diagram of the connection node between the conductive pin and the copper busbar according to an embodiment of the present invention.

[0023] Figure 6Schematic diagram of the exploded structure of the connection node between the conductive pin and the copper busbar according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Reference Figures 1 to 6 As shown, the present invention provides a brushless motor, comprising: a stator base 1, a rotor 2, a stator winding 3 and an adapter ring plate 4.

[0027] In this embodiment, the stator base is circular. A protective flange is formed on the outer edge of the stator base. The protective flange is arranged in a circle along the circumference of the stator base. An axial hole is opened at the axis of the stator base.

[0028] The rotor 2 includes a housing 21 and a magnet. The housing is cylindrical. The housing has a closed end and an open end opposite to each other. A rotating shaft 22 is connected to the inner side of the closed end of the housing. The rotating shaft 22 is inserted into the housing. The end of the rotating shaft away from the closed end extends out through the open end and is installed in the shaft hole of the stator base through a bearing. A magnet is installed on the inner side of the side wall of the housing. The magnet is arranged in a circle along the circumferential direction of the housing. In this embodiment, the magnet is a permanent magnet.

[0029] The stator winding 3 is disposed in the housing 21 . The stator winding is disposed opposite to the magnet. A bus bar 31 is connected to the side of the stator winding 3 facing the stator base 1 .

[0030] The adapter ring plate 4 is detachably mounted on the inner side of the stator base 1. The adapter ring plate 4 is formed with a plurality of limiting flanges 41. The limiting flanges 41 are provided with limiting holes. The plurality of adapter ring plates 4 are provided with a plurality of locking holes. A conductive pin 42 is inserted into the locking hole. The conductive pin 42 has a first end and a second end opposite to each other. The stator base 1 is provided with a plurality of through holes. The positions of the plurality of through holes correspond one to one with the positions of the plurality of locking holes. The first end is penetrated through the through hole and extends to the outside of the stator base 1. The second end is connected with a conductive plate 43 installed in the limiting hole. The conductive plate 43 is provided with a socket. The copper busbar 311 of the busbar 31 is detachably inserted into the socket. Conductive spring sheets 44 are formed on opposite sides of one end of the socket facing away from the busbar 31. The conductive spring sheets 44 on both sides of the socket are pressed against opposite sides of the copper busbar 311.

[0031] The brushless motor of the present invention is connected to electric energy through conductive pins, and the electric energy is transmitted to the conductive plate and conductive spring clips through the conductive pins. The conductive plate and conductive spring clips transmit the electric energy to the copper bar of the bus, thereby causing the stator winding to generate a driving magnetic field for driving the magnet to rotate the rotor.

[0032] The brushless motor of the present invention installs the stator winding on the stator base through an adapter ring plate. When adapting to power supply interfaces on cars of different sizes, different interfaces can be adapted to drive the rotor by replacing different stator bases. In order to adapt to power supply interfaces of different sizes, it is only necessary to adapt the positions of multiple perforations on the stator base and adapter ring plates of different sizes. The rotor and stator winding of the brushless motor can be standardized and platform-based, which reduces the production cost and maintenance cost of the motor of the car.

[0033] In this embodiment, a protective sleeve 45 is formed at one end of the lock hole of the adapter ring plate facing the stator base 1. The first end of the conductive pin 42 is inserted into the protective sleeve 45. The protective sleeve 45 is inserted into the through hole with interference fit.

[0034] As a preferred embodiment, the inner diameter of the through hole gradually decreases from one end of the through hole close to the inner side of the stator base 1 to the other end of the through hole away from the inner side of the stator base 1. Accordingly, the outer dimensions of the protective sleeve are adapted to the through hole and are truncated cone-shaped.

[0035] In this embodiment, the conductive plate 43 is a beryllium copper plate.

[0036] As a preferred implementation, the conductive plate 43 and the conductive spring piece 44 are integrally formed.

[0037] The conductive plate, the conductive pin and the adapter ring plate are integrally injection molded.

[0038] In this embodiment, the housing, the stator winding and the stator base are coaxially arranged. Further, the adapter ring plate is coaxially arranged with the stator base. A plurality of limiting flanges 41 are arranged at intervals along the circumferential direction of the adapter ring plate 4.

[0039] As a preferred implementation, a plurality of limiting flanges 41 are symmetrically arranged on opposite sides of the adapter ring plate 4, so that the stator winding is firmly fixed to the inner side of the stator base through the adapter ring plate.

[0040] The brushless motor of the present invention can adapt to and install standardized, standardized and platform-based stator windings and rotors by replacing adapter ring plates of different sizes to achieve conductive pins with different outer diameters, so as to reduce automobile production costs and maintenance costs.

[0041] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A brushless motor, characterized in that: include: Stator base; The rotor comprises a housing rotatably mounted on the stator base via a rotating shaft and a magnet fixed to the inner wall of the housing; a stator winding, disposed in the accommodating shell and opposite to the magnet, wherein a bus bar is connected to a side of the stator winding facing the stator base; and An adapter ring plate is detachably mounted on the inner side of the stator base, the adapter ring plate being formed with a plurality of limiting flanges, the limiting flanges being provided with limiting holes, the plurality of adapter ring plates being provided with a plurality of locking holes, conductive pins being inserted into the locking holes, the conductive pins having a first end and a second end opposite to each other, the stator base being provided with a plurality of through holes, the positions of the plurality of through holes corresponding one-to-one to the positions of the plurality of locking holes, the first end being penetrated through the through holes and extending to the outside of the stator base, the second end being connected to a conductive plate installed in the limiting hole, the conductive plate being provided with a socket, the copper busbar of the busbar being detachably inserted into the socket, conductive spring sheets being formed on opposite sides of an end of the socket facing away from the busbar, the conductive spring sheets on both sides of the socket being pressed against opposite sides of the copper busbar.

2. The brushless motor according to claim 1, characterized in that: A protective sleeve is formed at one end of the lock hole facing the stator base, the first end of the conductive pin is inserted through the protective sleeve, and the protective sleeve is inserted in the through hole with interference fit.

3. The brushless motor according to claim 2, characterized in that: The inner diameter of the through hole gradually decreases from one end of the through hole close to the inner side of the stator base to the other end of the through hole away from the inner side of the stator base.

4. The brushless motor according to claim 1, characterized in that: The conductive plate is a beryllium copper plate.

5. The brushless motor according to claim 4, characterized in that: The conductive plate and the conductive spring are integrally formed.

6. The brushless motor according to claim 1, characterized in that: The plurality of limiting flanges are arranged at intervals along the circumferential direction of the adapter ring plate.

7. The brushless motor according to claim 6, characterized in that: The plurality of limiting flanges are symmetrically arranged on two opposite sides of the adapter ring plate.

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