CN212163129U - Hall sensor mounting structure of direct current brushless motor - Google Patents
Hall sensor mounting structure of direct current brushless motor Download PDFInfo
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- CN212163129U CN212163129U CN202021288663.5U CN202021288663U CN212163129U CN 212163129 U CN212163129 U CN 212163129U CN 202021288663 U CN202021288663 U CN 202021288663U CN 212163129 U CN212163129 U CN 212163129U
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- mounting structure
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Abstract
The utility model relates to a brushless DC motor's hall sensor mounting structure, this mounting structure is used for stator body, stator body includes that a plurality of rings shape arrange and the stator tooth portion that the tip links to each other, form the holding tank that is used for holding stator winding between the adjacent stator tooth portion, the last hall sensor that is provided with of stator body, hall sensor is connected with the lead wire, this mounting structure is including the installation circuit board, hall sensor is provided with threely and is arc distribution on the installation circuit board, three hall sensor and installation circuit board fixed connection, three mounting groove has been seted up to stator body's up end, each hall sensor inserts in each mounting groove. The utility model provides a current mounting structure wiring difficulty, the problem that the installation effectiveness is low has and makes things convenient for the staff to fix the hall sensor installation on stator body, improves the effect of installation effectiveness.
Description
Technical Field
The utility model belongs to the technical field of the motor technique and specifically relates to a brushless DC motor's hall sensor mounting structure is related to.
Background
At present, a brushless direct current motor is a synchronous motor composed of a motor main body and a driver, and the brushless direct current motor mostly adopts a hall sensor to carry out phase change, and has the advantages of simple circuit and simple algorithm. The hall sensor generally separates with the motor body, adopts external sensor scheme, needs to install the sensor alone after the stator body installation of motor is accomplished.
Among the prior art, the stator body includes the stator tooth portion that a plurality of rings were arranged, is formed with the holding tank that is used for holding stator winding between two adjacent stator tooth portions, and each holding tank has the wire winding opening, is provided with hall sensor on the stator body, and hall sensor is connected with the lead wire. And the pin and the lead of the Hall sensor are welded by adopting a manual soldering mode, and then the Hall sensor is welded on the stator body.
The above prior art solutions have the following drawbacks: in the in-service use process, need carry out manual welding alone between each stitch of hall sensor and the lead wire, the welding space is little, and the wiring is difficult, and welding quality is unstable, leads to the installation effectiveness low. Based on this, provide a direct current brushless motor's hall sensor mounting structure, with hall sensor integration on the installation circuit board, the staff will install between the circuit board is direct and the stator body fixedly, effectively improve the installation effectiveness.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a direct current brushless motor's hall sensor mounting structure, this mounting structure be convenient for the staff fix the hall sensor installation on stator body, improve the installation effectiveness.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a brushless DC motor's hall sensor mounting structure, this mounting structure is used for the stator body on, the stator body includes that a plurality of rings form and the continuous stator tooth portion of tip, form the holding tank that is used for holding stator winding between the adjacent stator tooth portion, be provided with hall sensor on the stator body, hall sensor is connected with the lead wire, and this mounting structure includes the installation circuit board, hall sensor is provided with threely and is arc distribution on the installation circuit board, and is three hall sensor and installation circuit board fixed connection, three mounting groove has been seted up to the up end of stator body, each hall sensor inserts in each mounting groove.
Through adopting above-mentioned technical scheme, be provided with the installation circuit board, the staff inserts hall sensor in the mounting groove with three hall sensor fixed connection earlier on the installation circuit board, does not need the staff to carry out welded fastening to hall sensor on stator body, improves the convenience of installation to improve the installation effectiveness.
The present invention may be further configured in a preferred embodiment as: each the mounting groove is located the side that the axis of stator tooth portion and stator body paralleled, the inner wall of mounting groove and hall sensor's surface are laminated mutually, when hall sensor inserts in the mounting groove, hall sensor surface flushes with the side of stator tooth portion mutually, the one side that installation circuit board is close to hall sensor is laminated mutually with the up end of stator body.
By adopting the technical scheme, when a worker installs the Hall sensor, the worker can directly insert the Hall sensor into the installation groove, and the inner wall of the installation groove is attached to the outer surface of the Hall sensor, so that the installation stability of the Hall sensor is improved, and the Hall sensor is not easy to fall off from the installation groove; the mounting groove is located the side of stator flank of tooth and hall sensor surface flushes with the side of stator tooth mutually, improves hall sensor signal reception quality.
The present invention may be further configured in a preferred embodiment as: the installation circuit board is arc-shaped and strip-shaped, three installation parts are formed on the installation circuit board, the installation parts are respectively located at two ends and the middle of the installation circuit board, and the Hall sensors are respectively and fixedly connected with the installation parts.
By adopting the technical scheme, the installation circuit board is arranged into the arc-shaped strip shape, so that the area of the installation circuit board is reduced, the cost is saved, meanwhile, the arrangement shapes of the installation circuit board and the stator tooth part are more adaptive, the space occupation in the stator is reduced, and the interference is not easy to generate; set up hall sensor on each installation department, can install three hall sensor simultaneously, improve the installation effectiveness, the installation department equipartition is on the installation circuit board for the installation circuit board atress is even, and the structure is more stable.
The present invention may be further configured in a preferred embodiment as: each install department all has seted up three plug-in components hole, each be provided with three stitch on the hall sensor, each stitch all inserts in the plug-in components hole and with the installation circuit board welding.
Through adopting above-mentioned technical scheme, three plug-in components hole has been seted up on the installation department, and the staff is when carrying out hall sensor's installation, directly inserts hall sensor in the plug-in components hole through the stitch, realizes hall sensor's quick location, the hall sensor's of being convenient for installation.
The present invention may be further configured in a preferred embodiment as: and when the pins are inserted into the plug-in holes, the convex blocks are abutted against the inner walls of the plug-in holes.
Through adopting above-mentioned technical scheme, the staff is when fixing hall sensor and installation circuit board, and it is downthehole to insert the plug-in components with the stitch, and lug and plug-in components hole butt this moment, and there is the interact power between the two for the stitch is difficult to drop from the plug-in components hole, plays the effect of temporary fixation, and the staff of being convenient for welds stitch and installation circuit board, and the lug is made by conducting material, guarantees the good electric conductivity of stitch.
The present invention may be further configured in a preferred embodiment as: adjacent two be provided with wiring portion between the installation department, wiring portion is first wiring portion and second wiring portion, the lead wire includes two positive and negative signal lead wires and three position signal lead wire, two positive and negative signal lead wire welding is in first wiring portion, three position signal lead wire welding is in second wiring portion, first wiring portion and second wiring portion are connected through being connected between microcircuit in the installation circuit board and each hall sensor.
By adopting the technical scheme, the working personnel only need to weld the lead on the wiring part of the installation circuit board without welding the lead and the Hall element, so that the welding difficulty is reduced, and the installation efficiency of the Hall element is improved.
The present invention may be further configured in a preferred embodiment as: first wiring portion and second wiring portion all adopt the surface mounting formula pad, the splice of first wiring portion and second wiring portion all is located the one side of keeping away from hall sensor.
By adopting the technical scheme, if the lead wire penetrates through the installation circuit board for welding, welding points exist on two surfaces of the installation circuit board, so that the installation circuit board is unstable when placed on the stator body; a welding point exists between the installation circuit board and the stator body, so that the short circuit of the installation circuit board is easily caused, and the Hall sensor loses the effect; the wiring portion adopts the surface-mounted type bonding pad, can weld the lead wire in the one side of installation circuit board for the upper surface of installation circuit board and stator body can laminate and be difficult for taking place the short circuit.
The present invention may be further configured in a preferred embodiment as: and one surface of the mounting circuit board, which is close to the stator body, is coated with insulating oil.
Through adopting above-mentioned technical scheme, scribble insulating oil at the one side of installation circuit board, can be to insulating between installation circuit board and the stator to can cool off the circuit board. Insulating oil can cover the burr of stator body and installation circuit board contact surface, makes the upper surface of installation circuit board and stator body laminate more to play the guard action to installation circuit board.
To sum up, the utility model discloses a following at least one useful technological effect:
1. by arranging the installation circuit board, the three Hall sensors are fixed on the installation circuit board and are inserted into the stator body, so that workers can install and fix the Hall sensors on the stator body conveniently, and the installation efficiency is improved;
2. by arranging the mounting groove, the Hall sensor is inserted in the mounting groove, so that the Hall sensor is not easy to fall off from the stator body, and the mounting stability is improved; the installation position of the Hall sensor is fixed, and the installation convenience is improved;
3. through setting up first wiring portion and second wiring portion, the wiring of three hall sensor of being convenient for.
Drawings
Fig. 1 is a schematic view of the overall structure of a hall sensor mounting structure of a dc brushless motor according to the present embodiment.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic view of the overall structure of components on the mounting circuit board.
Fig. 4 is an overall mechanism diagram of the mounting circuit board.
Fig. 5 is a schematic diagram of the overall structure of the hall sensor.
In the figure, 1, a stator body; 11. a stator tooth portion; 12. accommodating grooves; 13. mounting grooves; 2. a Hall sensor; 21. a stitch; 22. a bump; 3. installing a circuit board; 31. an installation part; 311. a plug-in hole; 32. a wiring portion; 321. a first wiring portion; 322. a second wiring portion; 33. insulating oil; 4. a lead wire; 41. positive and negative signal leads; 42. and a position signal lead.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a brushless dc motor's hall sensor mounting structure, this mounting structure is used for stator body 1 on, stator body 1 includes stator tooth portion 11 that a plurality of rings form and is used for holding stator winding's holding tank 12 between the adjacent stator tooth portion 11, is provided with hall sensor 2 on stator body 1, and hall sensor 2 is connected with lead wire 4. Three mounting groove 13 has been seted up to stator body 1's upper end, and each mounting groove 13 all is located the side that stator tooth portion 11 parallels with stator body 1's axis, and when hall sensor 2 inserted in mounting groove 13, the inner wall of mounting groove 13 was laminated mutually with hall sensor 2's surface, and hall sensor 2 surface flushes mutually with stator tooth portion 11's side.
Referring to fig. 3 and 4, the mounting structure includes a mounting circuit board 3, the mounting circuit board 3 is in an arc-shaped strip shape, three mounting portions 31 are formed on the mounting circuit board 3, the three mounting portions 31 are respectively located at two ends and a middle portion of the mounting circuit board 3, three plug-in holes 311 are formed in each mounting portion 31, a wiring portion 32 is arranged between two adjacent mounting circuit boards 3, the wiring portion 32 is divided into a first wiring portion 321 and a second wiring portion 322, and one surface of the mounting circuit board 3, which is close to the stator body 1, is coated with insulating oil 33 (see fig. 2).
Referring to fig. 4 and 5, the hall sensors 2 are three and distributed on the mounting circuit board 3 in an arc shape, each hall sensor 2 is fixedly connected to the mounting portion 31, three pins 21 are arranged on the hall sensors 2, each pin 21 is inserted into the plug-in hole 311 and welded to the mounting circuit board 3, a protruding block 22 is fixedly arranged at one end of each pin 21 close to the hall sensor 2, the protruding block 22 is made of a metal material, in this example, the protruding block 22 is made of the same material as the pin 21, and when the pin 21 is inserted into the plug-in hole 311, the protruding block 22 abuts against the inner wall of the plug-in hole 311.
Referring to fig. 3, the lead 4 includes two positive and negative signal leads 41 and three position signal leads 42, the two positive and negative signal leads 41 are welded to the first wiring portion 321, the three position signal leads 42 are welded to the second wiring portion 322, the first wiring portion 321 and the second wiring portion 322 both use surface-mounted pads, the welding position of the first wiring portion 321 and the second wiring portion 322 is located on the side far away from the hall sensors 2, and the first wiring portion 321 and the second wiring portion 322 are electrically connected to the hall sensors 2 through a microcircuit on the mounting circuit board 3.
The implementation principle of the embodiment is as follows: when the staff installs hall sensor 2 on stator body 1, in order to improve the convenience of installation, install hall sensor 2 integration earlier on installation circuit board 3. The worker inserts the pin 21 into the plug-in hole 311, makes the hall sensor 2 contact with one surface of the mounting circuit board 3, and welds and fixes the pin 21 and the mounting portion 31, thereby fixing the hall sensor 2 on the mounting circuit board 3. In order to facilitate welding of a worker, the projection 22 is arranged at one end of the pin 21, and when the pin 21 is inserted into the plug-in hole 311, the projection 22 is abutted against the inner wall of the plug-in hole 311, so that the pin 21 is not easy to fall off from the plug-in hole 311 in the welding process. Subsequently, the worker welds the two positive and negative signal leads 41 to the first wiring portion 321, welds the three position signal leads 42 to the second wiring portion 322, and fixes the lead 4 to the wiring portion 32, and electrically connects the lead 4 to each hall sensor 2 through the micro circuit inside the circuit mounting board 3. Finally, the worker inserts each hall sensor 2 into each mounting groove 13, and the hall sensors 2 are quickly mounted on the stator body 1. In order to make the mounting circuit board 3 and the upper end surface of the stator body 1 be attached to each other and make the mounting circuit board 3 not easily short-circuited, the wiring portion 32 is a surface-mounted pad and the surface of the mounting circuit board 3 close to the stator body 1 is coated with insulating oil 33.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a brushless DC motor's hall sensor mounting structure, this mounting structure is used for stator body (1) on, stator body (1) includes that a plurality of rings form and the continuous stator tooth portion (11) of tip, form between adjacent stator tooth portion (11) and be used for holding tank (12) of stator winding, be provided with hall sensor (2) on stator body (1), hall sensor (2) are connected with lead wire (4), its characterized in that: the mounting structure comprises a mounting circuit board (3), wherein the Hall sensors (2) are arranged three and arc-shaped and distributed on the mounting circuit board (3), the Hall sensors (2) are fixedly connected with the mounting circuit board (3), three mounting grooves (13) are formed in the upper end face of the stator body (1), and the Hall sensors (2) are inserted into the mounting grooves (13).
2. The hall sensor mounting structure of a dc brushless motor according to claim 1, wherein: each mounting groove (13) is positioned on the side face, parallel to the axis of the stator tooth portion (11) and the axis of the stator body (1), of the mounting groove (13), the inner wall of the mounting groove (13) is attached to the outer surface of the Hall sensor (2), when the Hall sensor (2) is inserted into the mounting groove (13), the surface of the Hall sensor (2) is flush with the side face of the stator tooth portion (11), and one face, close to the Hall sensor (2), of the mounting circuit board (3) is attached to the upper end face of the stator body (1).
3. The hall sensor mounting structure of a dc brushless motor according to claim 1, wherein: the mounting circuit board (3) is arc-shaped and strip-shaped, three mounting parts (31) are formed on the mounting circuit board (3), the mounting parts (31) are respectively located at two ends and the middle of the mounting circuit board (3), and the Hall sensors (2) are respectively fixedly connected with the mounting parts (31).
4. The hall sensor mounting structure of a dc brushless motor according to claim 3, wherein: each installation portion (31) is provided with three plug-in holes (311), each Hall sensor (2) is provided with three pins (21), and each pin (21) is inserted into the plug-in hole (311) and welded with the installation circuit board (3).
5. The hall sensor mounting structure of a dc brushless motor according to claim 4, wherein: the three stitch (21) is close to one end of the Hall sensor (2) and is fixedly provided with a convex block (22), the convex block (22) is made of a conductive material, and when the stitch (21) is inserted into the plug-in hole (311), the convex block (22) is abutted to the inner wall of the plug-in hole (311).
6. The hall sensor mounting structure of a dc brushless motor according to claim 3, wherein: adjacent two be provided with wiring portion (32) between installation department (31), wiring portion (32) divide into first wiring portion (321) and second wiring portion (322), lead wire (4) include two positive and negative signal lead wire (41) and three position signal lead wire (42), two positive and negative signal lead wire (41) welding is in first wiring portion (321), three position signal lead wire (42) welding is in second wiring portion (322), first wiring portion (321) and second wiring portion (322) are connected through the electricity between microcircuit and each hall sensor (2) in installation circuit board (3).
7. The hall sensor mounting structure of a dc brushless motor according to claim 6, wherein: first wiring portion (321) and second wiring portion (322) all adopt the surface-mounted pad, the splice of first wiring portion (321) and second wiring portion (322) all is located the one side of keeping away from hall sensor (2).
8. The hall sensor mounting structure of a dc brushless motor according to claim 7, wherein: and one surface of the mounting circuit board (3) close to the stator body (1) is coated with insulating oil (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021288663.5U CN212163129U (en) | 2020-07-01 | 2020-07-01 | Hall sensor mounting structure of direct current brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021288663.5U CN212163129U (en) | 2020-07-01 | 2020-07-01 | Hall sensor mounting structure of direct current brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212163129U true CN212163129U (en) | 2020-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021288663.5U Active CN212163129U (en) | 2020-07-01 | 2020-07-01 | Hall sensor mounting structure of direct current brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212163129U (en) |
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2020
- 2020-07-01 CN CN202021288663.5U patent/CN212163129U/en active Active
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