CN210093092U - Circuit board of brushless DC motor - Google Patents
Circuit board of brushless DC motor Download PDFInfo
- Publication number
- CN210093092U CN210093092U CN201921307202.5U CN201921307202U CN210093092U CN 210093092 U CN210093092 U CN 210093092U CN 201921307202 U CN201921307202 U CN 201921307202U CN 210093092 U CN210093092 U CN 210093092U
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- circuit board
- base
- hole
- hall element
- brushless
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Abstract
The utility model discloses a direct current brushless motor's circuit board, include: a circuit board main body, a central hole is formed at the center of the circuit board main body; the mounting ring frame is loaded with a Hall element and is fastened at the central hole of the circuit board main body, and the mounting ring frame comprises a base ring and a plurality of bases; the circuit board comprises a base, and is characterized in that an accommodating cavity is formed in the base, a first opening and a second opening are formed in the end face of the base, the accommodating cavity, the first opening and the second opening jointly form a mounting hole of the base, a through hole for the pins of the Hall element to penetrate is formed in the bottom of the mounting hole, a connecting hole for the pins of the Hall element to be inserted is formed in the circuit board body, and the pins of the Hall element are fastened in the connecting hole. The circuit board of the direct current brushless motor has the advantage of convenience in installation.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to brushless DC motor's circuit board.
Background
The brushless DC motor is a novel motor developed on the basis of a brush DC motor, overcomes a series of limitations caused by a mechanical commutator and a brush of the traditional DC motor, and has the advantages of simple structure, reliable operation, convenient maintenance and the like. The direct current brushless motor is widely applied to the fields of computer peripheral equipment, medical instruments, household appliances, industrial automation and the like. The existing direct current brushless motor has the defect that a Hall element on a circuit board is inconvenient to install, so that a circuit board of the direct current brushless motor needs to be researched.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned technique, the utility model provides a simple to operate's direct current brushless motor's circuit board.
The utility model provides a technical scheme that its technical problem adopted is: a wiring board of a dc brushless motor comprising: a circuit board main body, a central hole is formed at the center of the circuit board main body; the installation ring frame is loaded with a Hall element and is fastened at the central hole of the circuit board main body, and the installation ring frame comprises a base ring coaxial with the central hole and a plurality of bases which are formed on one end face of the base ring and extend along the axial direction of the base ring; the base is provided with a containing cavity for containing the Hall element, the end face of the base is provided with a second opening which enables the Hall element to be inserted into the containing cavity along the axis direction of the base ring, the second opening is formed in the inner side wall of the base and connected with the first opening, the containing cavity, the first opening and the second opening jointly form a mounting hole of the base, a through hole for the pin of the Hall element to penetrate is formed in the bottom of the mounting hole, a connecting hole for the pin of the Hall element to be inserted is formed in the circuit board main body, and the pin of the Hall element is fastened in the connecting hole.
Preferably, the other end face of the base ring is provided with a plurality of connecting columns, the circuit board body is provided with column holes for the connecting columns to be inserted, and the connecting columns and the base are located on two opposite end faces of the base ring.
Preferably, the connecting column is a square cylinder.
Preferably, the number of the connecting columns is 3, and the adjacent connecting columns are spaced by 120 degrees.
Preferably, the diameter of the inner ring of the base ring is equal to the diameter of the central hole.
Preferably, an end face of the base ring is further provided with a circular arc-shaped reinforcing rib concentric with the base ring, and two opposite ends of the reinforcing rib are connected with the bases.
Preferably, the edge of the circuit board main body is further provided with a conductive terminal, and the conductive terminal is connected with a motor power line.
Compared with the prior art, the utility model, its beneficial effect is: the utility model provides a circuit board of a brushless DC motor, wherein Hall elements are arranged on the circuit board main body through a mounting ring frame, and a base for mounting the Hall elements is arranged on the mounting ring frame, so that the circuit board has the advantages of simple structure and convenient installation; the mounting ring frame is fastened on the circuit board main body through the connecting column, and the mounting ring frame has the advantages of simple structure and convenience in mounting.
Drawings
Fig. 1 is a schematic structural diagram of a circuit board of a dc brushless motor according to the present invention;
fig. 2 is an exploded schematic view of a circuit board of a dc brushless motor according to the present invention;
FIG. 3 is one of the schematic structural views of the mounting ring of the present invention;
fig. 4 is a second schematic structural view of the mounting ring frame of the present invention.
In the figure: 10. a circuit board main body; 11. a central bore; 12. connecting holes; 13. a post hole; 20. mounting a ring frame; 21. a base ring; 22. a base; 23. mounting holes; 231. a through hole; 24. reinforcing ribs; 25. connecting columns; 30. a Hall element; 40. and a conductive terminal.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1 to 4, the utility model provides a circuit board of a dc brushless motor, including: a circuit board body 10 having a center hole 11 formed at the center thereof; a mounting ring holder 20 loaded with a hall element 30 fastened at the center hole 11 of the circuit board main body 10, the mounting ring holder 20 including a base ring 21 coaxial with the center hole 11, a plurality of bases 22 formed on an end face of the base ring 21 and extending in an axial direction thereof; the base 22 is formed with an accommodating cavity for accommodating the hall element 30, the end face of the base 22 is formed with a first opening which enables the hall element 30 to be inserted into the accommodating cavity along the axial direction of the base ring 21, and a second opening which is formed on the inner side wall of the base 22 and connected with the first opening, the accommodating cavity, the first opening and the second opening together form an installation hole 23 of the base 22, a through hole 231 for the pin of the hall element 30 to penetrate through is formed at the bottom of the installation hole 23, a connection hole 12 for the pin of the hall element 30 to be inserted into is formed in the circuit board main body 10, the pin of the hall element 30 is fastened in the connection hole 12, and the pin of the hall element 30 is electrically connected with the circuit board main body 10.
As an embodiment of the present disclosure, as shown in fig. 1 to 4, a plurality of connection posts 25 are disposed on the other end surface of the base ring 21, and a post hole 13 for inserting the connection post 25 is formed on the circuit board main body 10, wherein the connection post 25 and the base 22 are located on two opposite end surfaces of the base ring 21, which has an advantage of convenient installation.
As an embodiment of the present disclosure, as shown in fig. 1 to 4, the connecting column 25 is a square column, which has an advantage of being stably installed.
As an embodiment of the present disclosure, as shown in fig. 1 to 4, the number of the connecting columns 25 is set to be 3, and the interval between adjacent connecting columns 25 is 120 °, which has an advantage of stable and reliable connection.
As an embodiment of the present solution, as shown in fig. 1 to 4, the diameter of the inner circle of the base ring 21 is equal to the diameter of the central hole 11.
As an example of this embodiment, as shown in fig. 1 to 4, an arc-shaped rib 24 concentric with one end surface of the base ring 21 is further provided, and the bases 22 are connected to opposite ends of the rib 24.
As an embodiment of the present disclosure, as shown in fig. 1 to 4, a conductive terminal 40 is further disposed at an edge of the circuit board main body 10, and the conductive terminal 40 is connected to a power line of a motor, wherein the conductive terminal 40 is electrically connected to the circuit board main body 10.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A circuit board of a brushless DC motor, comprising:
a circuit board main body (10) having a center hole (11) formed at the center thereof;
a mounting ring frame (20) loaded with a Hall element (30) and fastened at the central hole (11) of the circuit board main body (10), wherein the mounting ring frame (20) comprises a base ring (21) coaxial with the central hole (11), and a plurality of bases (22) formed on one end face of the base ring (21) and extending along the axial direction of the base ring;
the base (22) is formed with an accommodating cavity for accommodating the hall element (30), the end face of the base (22) is formed with a first opening which enables the hall element (30) to be inserted into the accommodating cavity along the axis direction of the base ring (21) and a second opening which is formed on the inner side wall of the base (22) and connected with the first opening, the accommodating cavity, the first opening and the second opening jointly form a mounting hole (23) of the base (22), a through hole (231) for the pin of the hall element (30) to penetrate is formed in the bottom of the mounting hole (23), a connecting hole (12) for the pin of the hall element (30) to be inserted is formed in the circuit board main body (10), and the pin of the hall element (30) is fastened in the connecting hole (12).
2. The wiring board of the dc brushless motor according to claim 1, wherein a plurality of connection posts (25) are disposed on the other end surface of the base ring (21), and a post hole (13) for inserting the connection post (25) is disposed on the wiring board main body (10), wherein the connection post (25) and the base (22) are disposed on two opposite end surfaces of the base ring (21).
3. The wiring board of a brushless dc motor according to claim 2, wherein the connecting posts (25) are square columns.
4. The wiring board of a brushless dc motor according to claim 2, wherein the number of the connecting posts (25) is set to 3, and the connecting posts (25) are spaced apart by 120 °.
5. The wiring board of a brushless dc motor according to claim 1, wherein the diameter of the inner ring of the base ring (21) is equal to the diameter of the central hole (11).
6. The wiring board of a brushless dc motor according to claim 1, wherein an end face of the base ring (21) is further provided with circular arc-shaped ribs (24) concentric therewith, and the bases (22) are connected to opposite ends of the ribs (24).
7. The circuit board of the brushless dc motor according to claim 1, wherein a conductive terminal (40) is further disposed at an edge of the circuit board main body (10), and a motor power line is connected to the conductive terminal (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921307202.5U CN210093092U (en) | 2019-08-13 | 2019-08-13 | Circuit board of brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921307202.5U CN210093092U (en) | 2019-08-13 | 2019-08-13 | Circuit board of brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210093092U true CN210093092U (en) | 2020-02-18 |
Family
ID=69485946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921307202.5U Active CN210093092U (en) | 2019-08-13 | 2019-08-13 | Circuit board of brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210093092U (en) |
-
2019
- 2019-08-13 CN CN201921307202.5U patent/CN210093092U/en active Active
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| GR01 | Patent grant |