CN116365799A - Motor - Google Patents

Abstract

The invention discloses a motor, which comprises a stator and a rotor, wherein a first circuit board is also arranged in the motor. The winding group of the stator comprises a plurality of coils, the winding group extends out of the conductive element and is connected with the electric connecting piece, and the electric connecting piece penetrates through the pillow seat of the stator and is electrically connected with the first circuit board. The motor is further provided with a second circuit board which is electrically connected with the first circuit board. The first electric connecting piece is used as a connecting piece for electrically connecting the winding group and the first circuit board, and the first circuit board is utilized to replace a traditional wire-connecting disc, so that the electric wire-connecting device has the advantage of easiness in installation.

Description

motor

This application is a divisional application, and the filing date of the original application is: June 19, 2020;

The application number is: 202010566844.8; the name of the invention is: Motor

technical field

The invention relates to a motor, in particular to a motor in which a circuit board is used to replace the existing wiring tray.

Background technique

A motor is a kind of motor that generates magnetic induction by providing electric energy to the coil on the stator, and further makes the rotor rotate. In terms of current development, how to simplify the complexity of motor assembly is a very important issue.

In the stator structure of the existing motor, the assembly steps of the wiring disc are complicated and tedious, which easily leads to wrong wiring. Secondly, it is easy to accidentally cause a short circuit problem during installation of the wiring reel and the coil of the winding group.

In addition, when the motor is used for general or outdoor use, moisture is likely to occur in the rotating part of the rotor. When the stator inside the rotor is further electrically connected to the wiring board and the circuit board, a moisture-blocking structure is required.

Therefore, how to develop a kind of motor that can improve the existing wiring tray is an urgent demand at present.

Contents of the invention

The purpose of the present invention is to provide a motor, which simplifies the assembly steps and complexity of the motor by replacing the wiring tray of the existing motor with a circuit board.

Another object of the present invention is to provide a motor, wherein a waterproof member is provided in the perforation provided on the base of the pillow, and the waterproof member is used for the first electrical connector to pass through, so that the waterproof member surrounds the first electrical connector to achieve waterproofing and The role of insulation.

To achieve the above purpose, the present invention provides a motor, the stator of which includes a winding set and a pillow, the coils of the winding set extend out of the wire element and are connected to the first electrical connector, and the pillow has a shaft tube and a base. The shaft tube is arranged on the base, and the winding group is arranged around the shaft tube. The base has an inner side of the base, and the inner side of the base is provided with a first through hole for the first electrical connector to pass through. A first circuit board is provided on the other side of the base relative to the shaft tube, and the first circuit board is electrically connected to the winding group through a first electrical connector.

The waterproof member of the present invention is partly arranged in the first through hole, so as to prevent the moisture on the side of the shaft tube of the pillow from affecting the first circuit board on the other side through the first through hole when the first electrical connector passes through the pillow.

Moreover, the function of the first circuit board is equivalent to the wiring board of the existing motor, which is a wiring structure or a printed circuit board. The first electrical connector extending from the coil can be electrically connected to the first circuit board through the first electrical connector by simply aligning and assembling the winding group, which can simplify the process.

In an embodiment of the present invention, it further includes that the second circuit board is electrically connected to the first circuit board. The function of the second circuit board is equivalent to the circuit board in the existing motor, and is provided with electronic components including a driving integrated circuit.

In an embodiment of the present invention, the pillow seat further includes a cover body axially extending from the base, and the cover body and the base plate form an accommodating space for accommodating the first circuit board and the second circuit board.

In an embodiment of the present invention, there is a first insulating board between the pillow seat and the first circuit board.

In an embodiment of the present invention, a clamping member is provided on the first circuit board for clamping the first electrical connector to electrically connect the first circuit board to the winding group.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

FIG. 1 is a schematic perspective view of a motor 10 in a preferred embodiment of the present invention;

FIG. 2 is an exploded schematic diagram of the motor 10 of FIG. 1;

FIG. 3 is a schematic perspective view of the stator 1 of the motor 10 according to a preferred embodiment of the present invention;

FIG. 4 is an exploded schematic diagram of the stator 1 of the motor of FIG. 3;

FIG. 5 is an exploded schematic view of the stator 1 of the motor of FIG. 3 at another viewing angle;

FIG. 6A is an exploded schematic diagram of the circuit boards 51, 52 and insulating plates 53, 54 of FIG. 5;

FIG. 6B is an enlarged schematic view of block A in FIG. 6A;

FIG. 6C is a schematic diagram of another embodiment of the clip 510 shown in FIG. 6B;

FIG. 7A is a perspective view of a waterproof member 4 in a preferred embodiment of the present invention;

FIG. 7B is a schematic perspective view of the waterproof member 4 in FIG. 7A at another viewing angle;

FIG. 8 is a cross-sectional view of the motor 10 of FIG. 1;

Fig. 9 is an enlarged schematic diagram of block B in Fig. 8;

FIG. 10 shows a schematic partial cross-sectional view of a motor 10 according to a preferred embodiment of the present invention; and

FIG. 11 shows a partial cross-sectional view of a motor 10 according to another preferred embodiment of the present invention.

Among them, reference signs

1: Stator

10: motor

2: winding group

20: Coil

21, 21a: conductive element

3: pillow seat

30: shaft tube

31: Base

310: Inside the base

3101: First piercing

3102: Convex

311: Perimeter of base

32: cover body

321: First Space

33: heat sink

34: Bottom plate

4: waterproof parts

41: Quarantine Department

42: Positioning Department

43: Extension

51: First circuit board

510: clamp

511: clamping part

512: Wearing department

513: Engagement hole

514: Piercing holes

515: First shaft hole

516: Second electrical connection

52: Second circuit board

53: The first insulation board

530: protrusion

531: Second shaft hole

532: Guidance Department

54: Second insulation board

541: Second Space

542: side wall

543: Second piercing

7: The first electrical connector

8: Magnetic components

9: rotor

91: Shaft

92: Housing

J: central axis

Detailed ways

Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention can have various changes in different aspects without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not restrictive this invention.

Please refer to FIGS. 1 and 2 . FIG. 1 is a perspective view of a motor 10 according to a preferred embodiment of the present invention, and FIG. 2 is an exploded view of the motor 10 of FIG. 1 . The motor 10 includes a stator 1 and a rotor 9 . The stator 1 includes a winding group 2 and a pillow 3 . The rotor 9 is sleeved on the winding group 2 to rotate around the central axis J. That is, the rotor 9 is provided in the circumferential direction with respect to the center axis J. As shown in FIG.

In the drawings of the present invention, the axial direction is assumed to be the direction in which the central axis J of the stator 1 extends. Directions parallel or substantially parallel to the central axis are referred to by the term "axial", and directions centered on the central axis and away from the central axis are simply referred to by the term "radial". And the circumferential direction around the central axis is simply referred to as "circumferential direction".

Please refer to FIG. 3 to FIG. 5, FIG. 3 is a perspective view of the stator 1 of a preferred embodiment of the present invention, FIG. 4 is an exploded view of the stator 1 in FIG. 3, and FIG. 5 is a perspective view of the stator 1 in FIG. 3 Breakdown diagram. The stator 1 includes a winding group 2 and a pillow 3 . The pillow seat 3 includes a shaft tube 30 and a base 31 . The shaft tube 30 is located on the side where the pillow seat 3 is further connected with the rotor 9 , so that the winding group 2 is circumferentially arranged on the shaft tube 30 . The base 31 includes a base inner side 310 adjacent to the shaft tube 30 and a base peripheral edge 311 circumferentially disposed on the inner side 310 of the base. The base peripheral edge 311 is provided with a cooling element 33 on a side facing the shaft tube 30 . The cooling element 33 generally extends axially relative to the base peripheral edge 311 and radially extends relative to the shaft tube 30 . The inner side 310 of the base is provided with a first through hole 3101 . The waterproof member 4 is partially disposed in the first through hole 3101 . The winding set 2 has a plurality of coils 20, and each coil 20 extends out of a conductive element and is connected to the first electrical connector 7, the first electrical connector 7 passes through the waterproof member 4 and passes through the first through hole 3101, so that the first electrical connection The end of the piece 7 is located on the side opposite to the side where the shaft tube 30 is disposed on the base 31 . The coils 20 in the winding group 2 can respectively extend out conductive elements and be directly electrically connected to the first electrical connector 7 , or the coils in the same phase can be electrically connected to each other first and then connected to the first electrical connector 7 via conductive elements.

The pillow seat 3 further includes a cover body 32 on the opposite side. The cover body 32 is generally a cylindrical structure extending axially. A first space 321 is formed in the cover body 32 , and the first circuit board 51 is disposed in the first space 321 . A clamping member 510 is disposed on the first circuit board 51 , and a first shaft hole 515 is disposed at the center of the first circuit board 51 . The first electrical connector 7 extending from the coil 20 is in contact with the clip 510 on the first circuit board 51 after passing through the base 31 from the first through hole 3101, so that the coil 20 is connected to the first electrical connector 7 through the first electrical connector 7. A circuit board 51 is electrically connected. The number of the first through holes 3101 is basically the same as that of the first electrical connector 7 , and furthermore, the number of the clamping members 510 is also the same as that of the first electrical connector 7 .

Generally speaking, the entire pillow seat 3 is substantially a metal structure, and a first insulating board 53 is further provided between the pillow seat 3 and the first circuit board 51 . The first insulating plate 53 has a protruding portion 530 corresponding to the first through hole 3101 , and a second shaft hole 531 is disposed in the center of the first insulating plate 53 . The protruding portion 530 has a through hole and is aligned with the first through hole 3101 for the first electrical connector 7 to pass through.

Referring to FIG. 4 and FIG. 5 , a second circuit board 52 may be further disposed in the first space 321 formed by the cover body 32 , and a second insulating board 54 is disposed between the first circuit board 51 and the second circuit board 52 . The second insulating plate 54 is provided with a side wall 542 axially extending from the periphery, and a second space 541 is formed therein. The second circuit board 52 is disposed in the second space 541 . The stator 1 further includes a bottom plate 34 connected to the cover body 32, so that the formed first space 321 becomes a substantially airtight space for accommodating the first insulating plate 53, the first circuit board 51, the second insulating plate 54 and the second circuit. plate 52.

In this embodiment, the function of the second circuit board 52 is equivalent to the circuit board in the existing motor, and the function of the first circuit board 51 is equivalent to the wiring board of the existing motor. Generally, the first circuit board 51 does not include electronic components such as driver integrated circuits.

FIG. 6A is an exploded schematic diagram of two circuit boards and two insulation boards in FIG. 5 . Referring to FIG. 5 and FIG. 6A , the first shaft hole 515 of the first circuit board 51 is axially aligned with the second shaft hole 531 of the first insulating board 53 for further penetration of a rotating shaft (not shown). The first circuit board 51 is provided with a second electrical connector 516, passing through the second through hole 543 provided on the second insulating board 54, so that the first circuit board 51 and the second circuit board 52 pass through the second electrical connector 516 electrical connection.

In FIG. 6A , the second electrical connection member 516 is in the form of a metal terminal structure, but it is not limited thereto.

FIG. 6B is an enlarged schematic view of block A in FIG. 6A . Please refer to FIGS. 6A and 6B . The clamping member 510 disposed on the first circuit board 51 is a conductive member having a clamping portion 511 and a piercing portion 512 . The through portion 512 corresponds to the engaging hole 513 formed on the first circuit board 51 , so that the clip 510 is fixed on the first circuit board 51 and electrically connected to the first circuit board 51 . The clamping part 511 is two metal parts, which can clamp the first electrical connector 7 as shown in FIG. 5 . The first circuit board 51 further has a through hole 514 provided corresponding to the clamping part 511. When the clamping part 511 clamps the first electrical connector 7, the through hole 514 can be selectively used as the first electrical connector 7 through.

In the embodiment shown in FIG. 6A and FIG. 6B , the clamping member 510 is disposed on a side of the first circuit board 51 close to the second insulating board 54 , that is, a side away from the shaft tube 30 , but it is not limited thereto.

Please continue to refer to FIG. 6C , which is a schematic diagram of another embodiment of the clip 510 shown in FIG. 6B . The clip 510 shown in FIG. 6C is disposed on a side of the first circuit board 51 close to the first insulating board 53 , that is, a side facing the shaft tube 30 . In short, the clamping part 510 serves as a conductive connection part with the first circuit board 51 to facilitate electrical connection with the first electrical connection part 7 .

FIG. 7A is a perspective view of the waterproof element 4 according to a preferred embodiment of the present invention, and FIG. 7B is a perspective view of the waterproof element 4 in FIG. 7A from another perspective. Please refer to FIG. 7A and FIG. 7B together. The waterproof member 4 is used as a waterproof structure partially disposed in the first through hole 3101 for the first electrical connection member 7 to pass through. The waterproof element 4 includes an isolation portion 41 , a positioning portion 42 and an extension portion 43 , preferably made of rubber or plastic. When installing the waterproof element, the extension portion 43 goes deep into the first through hole 3101 , and the isolation portion 41 and the positioning portion 42 are located on the inner side of the base 310 near the shaft tube 30 .

Please refer to FIG. 8 , which is a cross-sectional view of the motor 10 in FIG. 1 . The pillow 3 of the motor 10 is provided with a winding group 2 arranged around the shaft tube 30 in a circumferential direction. The rotor 9 includes a rotating shaft 91 and a housing 92 connected to the rotating shaft 91 . The rotating shaft 91 is disposed in the shaft tube 30 , and the inner side of the housing 92 is disposed with the magnetic element 8 opposite to the winding group 2 . The rotating shaft 91 drives the rotor 9 to rotate along the central axis J.

FIG. 9 is an enlarged schematic view of block B in FIG. 8 . 8 and 9, the coil 20 in the winding group 2 extends a first electrical connector 7, passes through the first through hole 3101 located inside the pillow seat 3, and connects with the first hole 3101 in the aforementioned first space 321. The circuit board 51 is electrically connected. In the embodiment shown in FIG. 9 , the coil 20 has an extended conductive element 21 , and the conductive element 21 is electrically connected to the first electrical connection element 7 , and then the waterproof element 4 is passed through. In this embodiment, the conductive element 21 is generally a relatively flexible wire. For manufacturing considerations, it is firstly connected to the rigid metal part of the first electrical connection part 7, and then the waterproof part 4 is passed through.

Continue referring to FIG. 7A , FIG. 7B and FIG. 9 . Bearing in mind the foregoing, when the waterproof member 4 is partly arranged in the first through hole 3101 as a waterproof structure, the extension part 43 goes deep into the first through hole 3101, and the isolation part 41 and the positioning part 42 are arranged on the base 31 close to the shaft tube 30 (also That is, on the side of the coil 20). The inner side of the base 310 is provided with a convex portion 3102 adjacent to the first through hole 3101 on the side close to the shaft tube 30 , so that the positioning portion 42 of the waterproof component 4 can engage with the convex portion 3102 to fix the position of the waterproof component 4 . After the positioning portion 42 engages with the convex portion 3102 , the isolation portion 41 is located radially outside the conductive element 21 , which can enhance the insulation function. The first insulating plate 53 located between the first circuit board 51 and the base 31 has a protruding portion 530 which is set corresponding to the first through hole 3101 and further extends between the base 31 and the waterproof member 4 to fix the first electrical connector 7 The relative position with the first circuit board 51. The second insulating board 54 acts as an insulator between the first circuit board 51 and the second circuit board 52 . The first insulating board 53 further has a guiding portion 532 , which is a protruding part facing the first circuit board 51 . The guiding portion 532 is disposed corresponding to the protruding portion 530 or corresponding to the first through hole 3101 of the base 31 , for guiding the first electrical connector 7 to pass through the insulating plate 53 and connect to the first circuit board 51 smoothly. The first insulating board 53 further has a guiding portion 532 , which is a protruding part facing the first circuit board 51 . The guide portion 532 is disposed corresponding to the protruding portion 530 or corresponding to the first through hole 3101 of the base 31 . The guide part 532 is a curved chamfer structure adjacent to the body of the first insulating board 53, and is used to guide the first electrical connector 7 so that the first electrical connector 7 can pass through the insulating board 53 and the first circuit board 51 smoothly. connect.

FIG. 10 shows a schematic partial cross-sectional view of a motor 10 according to a preferred embodiment of the present invention. Please refer to FIG. 9 and FIG. 10 together. The conductive element 21 extending from the coil 20 is electrically connected to the first electrical connector 7 , and is electrically connected to the first circuit board 51 through the clamping member 510 . The first insulating plate 53 is located between the base 31 and the first circuit board 51 as insulation protection for the electronic components on the first circuit board 51. When the first electrical connector 7 passes through the base 31, the waterproof member 4 acts as a barrier between the two. between, and has an insulating function, preventing the first electrical connector 7 from being electrically connected to the base 31 .

FIG. 11 shows a partial cross-sectional view of a motor 10 according to another preferred embodiment of the present invention. The difference from FIG. 10 is that the conductive element 21a extending from the coil 20 directly passes through the waterproof member 4 and is electrically connected to the first circuit board 51. The corresponding relationship and functions of the other components are the same as those in FIG.

To sum up, the present invention provides a motor, which simplifies the assembly steps and complexity of the motor by installing a circuit board instead of the wiring tray of the traditional motor, and saves the volume occupied by the motor wiring. In addition, a waterproof part is provided in the perforation of the motor pillow, and the waterproof part is used for piercing the electrical connection part, and can achieve the functions of waterproofing and insulation at the same time.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (20)

1. A motor, characterized in that, comprising: Stator, with: a winding set extending from a wire element connected to the first electrical connector; and The pillow seat includes a base and a shaft tube extending from one side of the base, the base is provided with an inner side of the base adjacent to the shaft tube, and the inner side of the base has a first through hole for the first electrical connector to pass through; The rotor has a rotating shaft, which is sleeved on the shaft tube and rotates along a central axis; a first circuit board, arranged on the base and on the other side of the shaft tube, electrically connected to the first electrical connector, a first shaft hole is arranged in the center of the first circuit board; and a second circuit board electrically connected to the first circuit board; Wherein the pillow seat includes a cover extending axially from the base, and the cover and the bottom plate form a first airtight space for accommodating the first circuit board and the second circuit board. 2. The motor according to claim 1, wherein the first circuit board does not contain electronic components of a driver IC, and the second circuit board is provided with electronic components including a driver IC. 3 . The motor according to claim 2 , further comprising a waterproof member partially disposed in the first through hole for passing through the first electrical connection member. 4 . 4 . The motor according to claim 3 , wherein the waterproof member includes an extension extending into the first through hole, so that the extension is located between the base and the first electrical connection member. 5 . The motor according to claim 4 , wherein the waterproof member comprises a positioning portion disposed on a side of the base close to the shaft tube. 5 . 6 . The motor according to claim 5 , wherein the base is provided with a convex portion adjacent to the first through hole on a side close to the shaft tube, so that the positioning portion engages with the convex portion. 7 . 7. The motor according to claim 4, wherein a first insulating plate is provided between the first circuit board and the base, and the first insulating plate has a guide portion corresponding to the first through hole for The first electrical connector is guided, and a second shaft hole is arranged in the center of the insulating plate, and the first shaft hole is axially aligned with the second shaft hole. 8. The motor according to claim 2, further comprising a second insulating plate disposed between the first circuit board and the second circuit board. 9 . The motor according to claim 8 , wherein the second insulating plate is provided with sidewalls extending axially from the periphery. 10. The motor according to claim 2, further comprising a clamping part disposed on the first circuit board, and the clamping part clamps the first electrical connecting part, so that the winding group and the first electrical connection A circuit board is electrically connected. 11. The motor according to claim 10, wherein the clamping member has a clamping portion for clamping the first electrical connector. 12. The motor according to claim 11, wherein the first circuit board has a through hole corresponding to the clamping portion. 13. The motor according to claim 10, wherein the first circuit board has a piercing portion corresponding to the engaging hole pierced on the first circuit board, so that the clamping member is fixed on the first circuit board. circuit board. 14. The motor according to claim 10, wherein the clamping member is disposed on a side of the first circuit board away from the shaft tube. 15 . The motor according to claim 2 , wherein the base further comprises a peripheral edge of the base, and a plurality of cooling elements are disposed on the peripheral edge of the base. 16. A motor, characterized in that it comprises: Stator, with: a winding set extending from a conductive element; and The pillow seat includes a base and a shaft tube extending from one side of the base, and the base is provided with a first through hole adjacent to the shaft tube for the conductive element to pass through; The rotor has a rotating shaft, which is sleeved on the shaft tube and rotates along a central axis; a first circuit board, disposed on the other side of the base where the shaft tube is disposed, and the conductive element is electrically connected to the first circuit board; and The first insulating plate has a guide portion corresponding to the first through hole for guiding the conductive element. 17. The motor according to claim 16, further comprising a second circuit board electrically connected to the first circuit board. 18. The motor according to claim 16, further comprising a waterproof member, the waterproof member is partially accommodated in the first through hole for the conductive element to pass through. 19 . The motor according to claim 16 , further comprising a clip disposed on the first circuit board, and the clip clips the conductive element. 20. A motor, characterized in that it comprises: Stator, with: a winding set extending from a wire element connected to the first electrical connector; and The pillow seat includes a base and a shaft tube extending from one side of the base, the base is provided with an inner side of the base adjacent to the shaft tube, and the inner side of the base has a first through hole for the first electrical connector to pass through; The rotor has a rotating shaft, which is sleeved on the shaft tube and rotates along a central axis; a first circuit board, disposed on the base and on the other side of the shaft tube, and electrically connected to the first electrical connector; a second circuit board electrically connected to the first circuit board; and A waterproof member is partially disposed in the first through hole for the first electrical connector to pass through; Among them, the waterproof parts include: an extension extending into the first through hole, so that the extension is located between the base and the first electrical connector; a positioning part arranged on a side of the base close to the shaft tube; and The base is provided with a convex portion adjacent to the first through hole on a side close to the shaft tube, so that the positioning portion engages with the convex portion.

Images