CN217115806U

CN217115806U - Motor and brush yoke assembly thereof

Info

Publication number: CN217115806U
Application number: CN202220046448.7U
Authority: CN
Inventors: 庄岩; 姜博; 徐雨楼
Original assignee: Wolong Electric Group Co Ltd
Current assignee: Qingdao Wolong Electromechanical Integration Technology Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-08-02
Anticipated expiration: 2032-01-04

Abstract

The utility model discloses a brush yoke subassembly, including brush support and printed circuit board, the brush support includes annular support body, and the brush support is used for fixed brush and electrical components, and the support body is equipped with the support column that is used for connecting printed circuit board, and printed circuit board is equipped with the coating circuit towards one side of brush support, and brush and electrical components all link to each other with drive power supply through the coating circuit. The electric brush and the electric element are connected with a driving power supply through a coating circuit to form a current loop. The coating circuit replaces a lead to be connected with a current loop, and meanwhile, the brush support fixes the printed circuit board through the support column, so that the connection part is firmer, the shock resistance, the high and low temperature resistance and the corrosion resistance of the motor can be improved, and the stability and the environmental adaptability of the motor are further improved. In addition, the printed circuit board can be produced in batch, so that the production cost is reduced, the motor structure is simplified, and the volume of the motor is reduced. The utility model also provides a motor including above-mentioned brush yoke subassembly to above-mentioned advantage has.

Description

Motor and brush yoke assembly thereof

Technical Field

The utility model relates to the technical field of motors, in particular to brush carrier subassembly. The utility model discloses still relate to a motor including above-mentioned brush yoke subassembly.

Background

The electronic parking motor is a key safety part in an automobile electronic brake system, a brush holder assembly in the motor is used for mounting devices such as an electric brush and the like, and the electric brush is matched with a commutator to transmit electricity to a winding to drive the motor to rotate.

The existing brush frame component is pre-buried or embedded with a conductive connecting wire on a brush support to be connected with a circuit device. The tie point of electrically conductive connecting wire needs manual welding, not only can improve the manpower consumption, and the reliability of connecting is unstable moreover, receives environmental factor influences such as vibrations, humidity, high temperature and salt fog easily. Once the connection point is corroded or dust invaded, the connection resistance is increased, and the motor performance is affected. In severe cases, electric sparks are generated in the motor to ablate the commutator, and the service life of the motor is seriously influenced.

Therefore, how to prolong the service life of the motor is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a brush yoke subassembly, it has set up printed circuit board, links to each other brush and electrical components through the coating circuit on the printed circuit board to through the fixed printed circuit board of support column, reduce the influence of environmental factor to the tie point, prolonged the life of motor. Another object of the utility model is to provide an electric machine including above-mentioned brush yoke subassembly.

In order to achieve the above object, the utility model provides a brush yoke assembly, including brush support and printed circuit board, the brush support includes annular support body, the brush support is used for fixed brush and electrical components, the support body is equipped with and is used for connecting printed circuit board's support column, the printed circuit board orientation one side of brush support is equipped with the coating circuit, the brush with electrical components all passes through the coating circuit links to each other with drive power supply.

Preferably, the number of the support columns is 3, and the printed circuit board is connected with the support columns through screws.

Preferably, the electrical component comprises an inductor, the inductor is located on one side of the electric brush and connected with the electric brush, the bracket body is provided with a tubular mounting seat, and the inductor is arranged in the mounting seat.

Preferably, the mounting seat is located on a side of the bracket body away from the motor rotor.

Preferably, the end, far away from the brush support, of the inductor is connected with the electric brush through a wire, the support body is provided with a support plate located between the electric brush and the inductor, a groove is formed in the upper end of the support plate, and the wire is arranged in the groove.

Preferably, a rotation speed detection mechanism is further included to detect the rotation speed.

Preferably, the rotating speed detection mechanism comprises a hall element, a power supply lead and a hall lead, wherein the power supply lead is used for connecting the hall element with a detection power supply, and the hall lead is used for connecting the hall element with a signal receiving device.

Preferably, the rotating speed detection mechanism further comprises a connecting piece, and the power supply lead and the hall lead are both connected with the connecting piece.

Preferably, the hall element is located on one side of the printed circuit board close to the motor rotor, and the power supply lead and the hall lead are both connected with the hall element through a coating circuit.

The utility model also provides a motor, including above-mentioned arbitrary one brush yoke subassembly.

The utility model provides a brush yoke subassembly, including brush support and printed circuit board, the brush support includes annular support body, and the brush support is used for fixed brush and electrical components, and the support body is equipped with the support column that is used for connecting printed circuit board, and printed circuit board is equipped with the coating circuit towards one side of brush support, and brush and electrical components all link to each other with drive power supply through the coating circuit.

The electric brush and the electric element are fixed on the bracket body, and meanwhile, the electric brush and the electric element are connected with a driving power supply through a coating circuit to form a current loop for driving the motor to run. The coating circuit replaces a lead to be connected with a current loop, and meanwhile, the brush support fixes the printed circuit board through the support column, so that the connection part is firmer, the shock resistance, the high and low temperature resistance and the corrosion resistance of the motor can be improved, and the stability and the environmental adaptability of the motor are further improved. In addition, the printed circuit board can be produced in batches, so that the production cost is reduced, the motor structure is simplified, and the volume of the motor is reduced.

The utility model also provides a motor including above-mentioned brush yoke subassembly to have above-mentioned advantage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a brush holder assembly provided by the present invention;

FIG. 2 is a schematic view of the brush holder assembly of FIG. 1 installed in an electric machine;

FIG. 3 is a schematic view of the brush holder of FIG. 1;

FIG. 4 is a schematic diagram of the printed circuit board of FIG. 1;

fig. 5 is a schematic structural diagram of the rotation speed detection mechanism in fig. 1.

Wherein the reference numerals in fig. 1 to 5 are:

the brush holder 1, the printed circuit board 2, the rotation speed detection mechanism 3, the brush 4, the inductor 5, the mounting seat 11, the support plate 12, the coating circuit 21, the hall element 31, the connecting piece 32, the power supply lead 33 and the hall lead 34.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 5, fig. 1 is a schematic structural view of a brush holder assembly according to the present invention; FIG. 2 is a schematic view of the brush holder assembly of FIG. 1 installed in an electric machine; FIG. 3 is a schematic view of the brush holder of FIG. 1; FIG. 4 is a schematic diagram of the printed circuit board of FIG. 1;

The utility model provides a brush yoke subassembly, the structure is shown in figure 1, including brush support 1 and printed circuit board 2. Wherein, brush support 1 includes annular support body, and the support body middle part is the mounting hole, and the commutator setting is in the mounting hole. The motor also comprises brushes 4 and electrical components, such as inductors 5, etc. The brush 4 and the electrical element are fixed on one side of the bracket body facing the rotor, a supporting column is arranged on one side of the bracket body away from the rotor, and the printed circuit board 2 can be connected with the connecting column through screws. The side of the printed circuit board 2 facing the brush holder 1 is provided with a coating circuit 21, and the brush 4 and the electrical components are connected with a driving power supply through the coating circuit 21, so that a current loop is formed. The surface of the printed circuit board 2 can be subjected to surface insulation treatment, so that the performances of the motor in the aspects of pressure resistance, moisture resistance, vibration resistance and the like are improved. The structure of the coating circuit 21 can refer to the connection manner of the motor in the prior art, and is not described in detail herein.

Optionally, the number of the support columns may be 3, and the 3 support columns are distributed at three vertex positions of the triangle, so that the printed circuit board 2 is stably supported, and the shock resistance of the printed circuit board is improved.

Optionally, the bracket body is provided with a tubular mounting seat 11, and an axis of the mounting seat 11 is perpendicular to the bracket body. The inductor 5 is arranged in the mounting seat 11, and the height of the mounting seat 11 is not larger than that of the inductor 5. The mounting seat 11 can protect the inductor 5, and reduce the influence of dust, salt mist and the like on the inductor 5.

As shown in fig. 3, the inductor 5 is located on one side of the brush 4, and one end of the inductor 5 away from the brush holder 1 is connected to the brush 4 through a wire. The support body is provided with a support plate 12, the support plate 12 is arranged between a brush holder and a mounting seat 11, and the electric brush 4 is arranged in the brush holder. The height of the supporting plate 12 is larger than that of the brush holder and the inductor 5, a groove is arranged at the upper end of the supporting plate 12, and the conducting wire is arranged in the groove. The groove can support and limit the wire, reduce the vibration of the wire and further avoid the connection point of the wire from loosening.

In this embodiment, the brush holder assembly is provided with the printed circuit board 2, and the electrical components and the electric brushes 4 are welded with the printed circuit board 2 to form a current loop, so that the connection point is firmer and the reliability is higher. In addition, brush support 1 passes through support column and printed circuit board 2 fixed connection, has further improved printed circuit board 2's fastness, avoids the vibration to cause the tie point pine to take off. In addition, brush holder 1 has still set up mount pad 11 and backup pad 12, and the two can protect inductance 5 and the wire of connecting inductance 5, brush 4 respectively, improves the life of motor. And the printed circuit board 2 can be mass-produced, so that the production efficiency of the motor can be improved.

The existing motor usually needs the rotating speed of an external detection mechanism for detecting the motor, the brush carrier assembly of the application also comprises a rotating speed detection mechanism 3, the rotating speed detection mechanism 3 can directly detect the rotating speed of the motor, and a detection signal is output.

Alternatively, as shown in fig. 5, the rotation speed detecting mechanism 3 includes a hall element 31, a power supply lead 33, and a hall lead 34. Wherein, the power lead 33 is used for connecting the hall element 31 with the detection power supply, and the hall lead 34 is used for connecting the hall element 31 with the signal receiving device. As shown in fig. 4, the hall element 31 is located on one side of the printed circuit board 2 close to the motor rotor, 5 connection holes are arranged on one side of the printed circuit board 2, the 5 connection holes are arranged side by side, two connection holes located on both sides are power connection holes, and the coating circuit 21 connects the pin of the hall element 31 with each connection hole. The power supply lead 33 is welded and fixed with the power supply connecting hole, and the Hall lead 34 is correspondingly connected with the other connecting holes. The user can select the hall element 31 according to the requirement, and the connection mode between the hall lead 34, the connection hole and the pin of the hall element 31 can refer to the prior art, which is not limited herein.

Optionally, the rotation speed detecting mechanism 3 further includes a connecting member 32, and the power supply lead 33 and the hall lead 34 are both connected to the connecting member 32. The connecting piece 32 is provided with a conducting strip and a socket, the power supply lead 33 and the Hall lead 34 are connected with the corresponding conducting strips, and the rotating speed detection mechanism 3 is plugged with a receiving device through the connecting piece 32 when in use, so that the circuit communication is realized.

In this embodiment, the brush holder assembly is provided with the rotation speed detection mechanism 3, and during the rotation of the rotor, the hall element 31 in the rotation speed detection mechanism 3 can detect the rotation speed of the motor according to the change of the magnetic field, so as to realize the real-time detection of the rotation speed of the motor.

The utility model also provides a motor, which comprises the brush holder component in any one of the above embodiments; the structure of other parts of the motor can refer to the prior art, and is not described in detail herein.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

It is right above the utility model provides a motor and brush yoke subassembly thereof have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a brush yoke subassembly, its characterized in that, includes brush support (1) and printed circuit board (2), brush support (1) includes annular support body, brush support (1) is used for fixed brush (4) and electrical components, the support body is equipped with and is used for connecting the support column of printed circuit board (2), printed circuit board (2) orientation one side of brush support (1) is equipped with coating circuit (21), brush (4) with electrical components all passes through coating circuit (21) link to each other with drive power supply.

2. A brush holder assembly according to claim 1, wherein the number of support columns is 3, and the printed circuit board (2) is attached to the support columns by screws.

3. A brush holder assembly according to claim 2, wherein the electrical component comprises an inductor (5), the inductor (5) being located on one side of the brush (4) and being connected to the brush (4), the holder body being provided with a tubular mounting seat (11), the inductor (5) being arranged in the mounting seat (11).

4. A brush holder assembly according to claim 3, wherein the mounting seat (11) is located on a side of the holder body remote from the motor rotor.

5. A brush holder assembly according to claim 4, characterized in that the end of the inductance (5) remote from the brush holder (1) is connected to the brush (4) by means of a wire, the holder body is provided with a support plate (12) between the brush (4) and the inductance (5), the support plate (12) is provided at its upper end with a recess, and the wire is arranged in the recess.

6. A brush holder assembly according to any of claims 1 to 5, further comprising rotation speed detection means (3) for detecting the rotation speed.

7. The brush holder assembly according to claim 6, wherein the rotation speed detecting mechanism (3) comprises a Hall element (31), a power supply lead (33) and a Hall lead (34), the power supply lead (33) is used for connecting the Hall element (31) with a detection power supply, and the Hall lead (34) is used for connecting the Hall element (31) with a signal receiving device.

8. The brush holder assembly according to claim 7, wherein the rotation speed detecting mechanism (3) further comprises a connecting member (32), and the power supply lead (33) and the hall lead (34) are both connected to the connecting member (32).

9. The brush holder assembly according to claim 7, characterized in that the Hall element (31) is located on the side of the printed circuit board (2) close to the motor rotor, and the power supply lead (33) and the Hall lead (34) are both connected to the Hall element (31) by means of a coating circuit (21).

10. An electrical machine comprising a brush holder assembly according to any one of claims 1 to 9.