CN210468284U - Brushless motor circuit board mounting structure and brushless motor - Google Patents
Brushless motor circuit board mounting structure and brushless motor Download PDFInfo
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- CN210468284U CN210468284U CN201921086438.0U CN201921086438U CN210468284U CN 210468284 U CN210468284 U CN 210468284U CN 201921086438 U CN201921086438 U CN 201921086438U CN 210468284 U CN210468284 U CN 210468284U
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- circuit board
- brushless motor
- mounting structure
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- conductive terminals
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Abstract
The utility model discloses a brushless motor circuit board mounting structure, this brushless motor circuit board mounting structure include the connector and install the circuit board to the connector on, wherein, the connector includes that insulating base, a plurality of intervals set up conductive terminal on this insulating base and lie in the insulating barrier member between the adjacent conductive terminal, and this insulating barrier member extends to the circuit board from insulating base, and this circuit board is connected with conductive terminal soldering tin. The insulating isolation piece is arranged to separate the adjacent conductive terminals, so that the situation that the soldering tin flowing down due to excessive soldering tin is connected to the adjacent conductive terminals is avoided, and the safety distance between the soldering tin on the adjacent conductive terminals is effectively ensured, thereby effectively avoiding the possibility of short circuit of the conductive terminals. The utility model also discloses a brushless motor.
Description
Technical Field
The utility model relates to a brushless motor circuit board mounting structure and brushless motor.
Background
As a high-efficiency motor, the brushless motor has the advantages of small size, long service life, small no-load current and the like, and is widely applied to various fields such as automobiles, electrical appliances, industrial control, automation equipment, aerospace and the like.
Among the components of the brushless motor, a circuit board (hall circuit board) is an important component for controlling and adjusting the rotation speed of the motor, wherein the circuit board is generally connected with a terminal of a connector in a soldering connection manner, so that the circuit board and the connector form an integrated structure, and then the integrated structure is built in the motor, the connector is used for being connected with an external power supply, the circuit board is electrically connected with the connector, and the circuit board is electrically connected with a motor winding.
However, for small motors, limited by the size of the motor, the spacing between two adjacent terminals of the connector is typically small, typically only one terminal outside diameter apart. When the terminal and the circuit board are connected by adopting a soldering process, soldering tin easily flows down along the terminal in the soldering process, and accumulation of the soldering tin is formed on the terminal, so that the distance between two adjacent terminals is too small (the creepage distance is small), short circuit between the terminals is caused in serious conditions, and the problems of potential safety hazards or scrapping of parts are caused.
The traditional preventive measures are as follows:
1. the usage amount of soldering tin is controlled to reduce the generation of accumulated lumps;
2. visual inspection to prevent the outflow of the problematic component.
However, these methods are either difficult to control or cannot fundamentally avoid the problem of 'accretion', and still have the problems of potential safety hazards or scrapping of parts and components.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a brushless motor circuit board mounting structure, this circuit board mounting structure can effectively stop the condition of two adjacent conductive terminal short circuits to improve security and quality.
A second object of the present invention is to provide a brushless motor with the above-mentioned circuit board mounting structure.
The purpose of the utility model is realized by adopting the following technical scheme:
brushless motor circuit board mounting structure, including the connector and install extremely the circuit board of connector, the connector include insulation base, a plurality of intervals set up in conductive terminal on the insulation base and be located adjacently the insulating isolator between the conductive terminal, insulating isolator extends to from insulation base the circuit board, the circuit board with conductive terminal soldering tin is connected.
Further, the insulating spacer is integrally formed with the connector.
Further, the material of the insulating isolation piece is plastic.
Further, the cross section of the insulating isolation piece is in the shape of an isosceles trapezoid, a square, a kidney or a triangle.
Furthermore, the circuit board is provided with a plurality of through holes penetrating through the upper end and the lower end of the circuit board, and the conductive terminals are matched with the through holes and connected with the circuit board in a soldering manner.
Furthermore, the connector further comprises a supporting seat and a positioning column arranged above the supporting seat, one end of the supporting seat is connected with one surface, provided with the conductive terminals, of the insulating base, the other end of the supporting seat is abutted against the bottom surface of the circuit board to support the circuit board, a positioning hole is formed in the position, corresponding to the positioning column, of the circuit board, a head is arranged at the top of the positioning column, the outer diameter of the head is larger than the aperture of the positioning hole, and the head is abutted against the top surface of the circuit board.
Further, the insulating base includes the annular mounting panel, conductive terminal and insulating isolator all locate the top surface of annular mounting panel, and a plurality of conductive terminal and insulating isolator all encircle the central axis of annular mounting panel evenly distributed in proper order.
Furthermore, a notch communicated with the central hole of the annular mounting plate is formed in the annular mounting plate, the notch penetrates through the upper end and the lower end of the annular mounting plate, the conductive terminals are sequentially arranged along the length extending direction of the notch, and the conductive terminals are close to the bottom wall of the notch.
Further, the insulating base further includes a cylindrical wall portion mounted to the top surface of the annular mounting plate, a central axis of the cylindrical wall portion coincides with a central axis of the annular mounting plate, and the circuit board is mounted in the cylindrical wall portion.
The second purpose of the utility model is realized by adopting the following technical scheme:
brushless motor, including foretell brushless motor circuit board mounting structure.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the insulating isolation part is additionally arranged between the adjacent conductive terminals and extends to the circuit board from the insulating base, so that the isolation wall is formed between the adjacent conductive terminals, the adjacent conductive terminals are separated, the soldering tin which flows down due to excessive soldering tin is prevented from being connected to the adjacent conductive terminals, the safety distance between the soldering tin on the adjacent conductive terminals is effectively ensured, the possibility of short circuit of the conductive terminals is effectively avoided, in addition, the insulating isolation part also plays a role in supporting and positioning the circuit board, the safety length of the conductive terminals is ensured, the size of 'accretion' of the soldering tin is effectively controlled, the safety distance of the two conductive terminals is prevented from being shortened due to the overlarge 'accretion', meanwhile, the work of later-stage visual inspection can be simplified, the working efficiency is improved, and the quality risk caused by human errors is reduced.
Drawings
Fig. 1 is a schematic structural view of a brushless motor circuit board mounting structure of the present invention;
fig. 2 is an exploded view of a circuit board mounting structure of the brushless motor shown in fig. 1;
fig. 3 is an internal structural view of the brushless motor circuit board mounting structure shown in fig. 1.
In the figure: 1. a connector; 11. an annular mounting plate; 111. a notch; 12. a cylindrical wall portion; 2. a circuit board; 21. a through hole; 22. positioning holes; 3. a conductive terminal; 4. an insulating spacer; 5. accumulating tumors; 6. a supporting seat; 7. and a positioning column.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
Referring to fig. 1-3, a brushless motor circuit board mounting structure according to a preferred embodiment of the present invention is shown, the brushless motor circuit board mounting structure includes a connector 1 and a circuit board 2 mounted on the connector 1, wherein the connector 1 includes an insulating base, a plurality of conductive terminals 3 disposed on the insulating base at intervals and an insulating spacer 4 disposed between adjacent conductive terminals 3, the insulating spacer 4 extends from the insulating base to the circuit board 2, the circuit board 2 is connected to the conductive terminals 3 by soldering, the conductive terminals 3 are also referred to as connecting terminals, and the conductive terminals 3 are disposed at intervals.
By adding insulating spacers 4 between adjacent conductive terminals 3, and extending the insulating spacers 4 from the insulating base to the circuit board 2, so that a separation wall is formed between adjacent conductive terminals 3 to separate the adjacent conductive terminals 3, thereby preventing the solder flowing down due to excessive solder from being connected to the adjacent conductive terminals 3, effectively ensuring the safety distance between the solder on the adjacent conductive terminals 3, thereby effectively eliminating the possibility of short circuit of the conductive terminals 3, in addition, the insulating isolation piece 4 also plays the role of supporting and positioning the circuit board 2, ensuring the safe length of the conductive terminals 3, thereby effectively controlling the size of the solder accumulated burls 5, avoiding the shortening of the safety distance of the two conductive terminals 3 due to the overlarge accumulated burls 5, meanwhile, the later-stage visual inspection work can be simplified, the working efficiency is improved, and the quality risk caused by human errors is reduced.
In a preferred embodiment, the insulating spacer 4 and the connector 1 are manufactured by integral injection molding, so as to reduce the processing difficulty and consequently reduce the processing cost. Wherein, the insulating isolation piece 4 and the connector 1 are made of plastic.
Further, the cross-sectional profile of the insulating spacer 4 is isosceles trapezoid, square, kidney-shaped or triangle to enhance the connection strength between the insulating spacer 4 and the insulating base, so that the connection between the insulating spacer 4 and the connector 1 is more stable.
In a preferred embodiment, the circuit board 2 is provided with a plurality of through holes 21 penetrating the upper and lower ends thereof, and the conductive terminals 3 are fitted into the through holes 21 and soldered to the circuit board 2.
For supporting and fixed circuit board 2, this connector 1 still includes supporting seat 6 and reference column 7, the one side fixed connection that one end and connector 1 of supporting seat 6 were equipped with conductive terminal 3, the other end of supporting seat 6 and the bottom surface butt of circuit board 2, with supporting circuit board 2, locating hole 22 has been seted up with the corresponding position of centre bore of supporting seat 6 to circuit board 2, the top of reference column 7 has set firmly the head of size increase, the external diameter of head is greater than the aperture of locating hole 22, reference column 7 upwards extends and passes locating hole 22 from supporting seat 6, the head of reference column 7 and the top surface butt of circuit board 2, so, realize firm support and the fixed of circuit board 2, avoid circuit board 2 and conductive terminal 3 to break away from the connection.
Specifically, the insulating base includes annular mounting panel 11, and conductive terminal 3 and insulating isolator 4 all locate the top surface of annular mounting panel 11, and a plurality of conductive terminal 3 and insulating isolator 4 all encircle the central axis of annular mounting panel 11 evenly distributed in proper order.
In order to facilitate later visual inspection, the annular mounting plate 11 is provided with a notch 111 communicated with the central hole thereof, the notch 111 penetrates through the upper end and the lower end of the annular mounting plate 11, the plurality of conductive terminals 3 are sequentially arranged along the length extending direction of the notch 111, and the conductive terminals 3 are close to the bottom wall of the notch 111. Preferably, the notch 111 is trapezoidal and gradually increases in size in a direction away from the central axis.
Specifically, the insulating base further includes a cylindrical wall portion 12, the cylindrical wall portion 12 is mounted on the top surface of the annular mounting plate 11, the central axis of the cylindrical wall portion 12 coincides with the central axis of the annular mounting plate 11, and the circuit board 2 is mounted in the cylindrical wall portion 12.
The utility model also discloses a brushless motor, this brushless motor includes foretell circuit board mounting structure.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. Brushless motor circuit board mounting structure, its characterized in that, including the connector and install extremely the circuit board of connector, the connector includes insulating base, a plurality of intervals set up in conductive terminal on the insulating base and be located adjacently insulating isolator between the conductive terminal, insulating isolator extends to from insulating base the circuit board, the circuit board with conductive terminal welded fastening.
2. The brushless motor circuit board mounting structure of claim 1, wherein the insulating spacer is integrally formed with the insulating base.
3. The brushless motor circuit board mounting structure of claim 1, wherein the insulating spacer is made of plastic.
4. The brushless motor circuit board mounting structure of claim 1, wherein the insulating spacer has a cross-sectional profile shape of an isosceles trapezoid, a square, a kidney-shaped, or a triangle.
5. The brushless motor circuit board mounting structure of claim 1, wherein the circuit board has a plurality of through holes passing through upper and lower ends thereof, and the conductive terminals pass through the through holes and are soldered to the circuit board.
6. The mounting structure of claim 1, wherein the connector further comprises a supporting base and a positioning post disposed above the supporting base, one end of the supporting base is connected to a surface of the insulating base on which the conductive terminals are disposed, the other end of the supporting base abuts against a bottom surface of the circuit board to support the circuit board, a positioning hole is formed in a position of the circuit board corresponding to the positioning post, a head is disposed on a top of the positioning post, an outer diameter of the head is larger than a diameter of the positioning hole, and the head abuts against a top surface of the circuit board.
7. The mounting structure of claim 1, wherein the insulating base comprises a ring-shaped mounting plate, the conductive terminals and the insulating spacers are disposed on a top surface of the ring-shaped mounting plate, and the conductive terminals and the insulating spacers are uniformly distributed around a central axis of the ring-shaped mounting plate in sequence.
8. The mounting structure of claim 7, wherein the annular mounting plate has a notch formed therein and communicating with the central hole thereof, the notch extending through the upper and lower ends of the annular mounting plate, and a plurality of conductive terminals are sequentially disposed along the length extension direction of the notch, and the conductive terminals are disposed near the bottom wall of the notch.
9. The brushless motor circuit board mounting structure of claim 7, wherein the insulating base further comprises a cylindrical wall portion located on a top surface of the annular mounting plate, a central axis of the cylindrical wall portion coinciding with a central axis of the annular mounting plate, the circuit board being received in the cylindrical wall portion.
10. A brushless motor, comprising the brushless motor circuit board mounting structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086438.0U CN210468284U (en) | 2019-07-11 | 2019-07-11 | Brushless motor circuit board mounting structure and brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086438.0U CN210468284U (en) | 2019-07-11 | 2019-07-11 | Brushless motor circuit board mounting structure and brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210468284U true CN210468284U (en) | 2020-05-05 |
Family
ID=70444903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921086438.0U Active CN210468284U (en) | 2019-07-11 | 2019-07-11 | Brushless motor circuit board mounting structure and brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210468284U (en) |
-
2019
- 2019-07-11 CN CN201921086438.0U patent/CN210468284U/en active Active
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