CN203660853U - DC brushless motor - Google Patents
DC brushless motor Download PDFInfo
- Publication number
- CN203660853U CN203660853U CN201320849503.7U CN201320849503U CN203660853U CN 203660853 U CN203660853 U CN 203660853U CN 201320849503 U CN201320849503 U CN 201320849503U CN 203660853 U CN203660853 U CN 203660853U
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- Prior art keywords
- circuit board
- hall circuit
- fixed mount
- end cap
- rear end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000001681 protective effect Effects 0.000 claims abstract description 41
- 238000009434 installation Methods 0.000 claims description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a DC brushless motor. The DC brushless motor comprises a motor single body and a motor controller; the motor single body comprises a rotary shaft, a rotor assembly, a stator assembly, a machine casing, a front end cover, a rear end cover, a Hall circuit board and a protective cover; the rotor assembly is installed on the rotary shaft, the stator assembly and the machine casing are connected together and then are nested outside the rotor assembly, the rotary shaft is support on bearings of the front end cover and the rear end cover, and the Hall circuit board is installed on the rear end cover; the motor controller comprises a control box and a control circuit board, the control box is installed on the rear end cover, and the control circuit board is installed in the control box; and the DC brushless motor further comprises a fixing rack, the Hall circuit board is installed on an end face of the rear end cover through the fixing rack, and the protective cover is installed on the Hall circuit board. The DC brushless motor has the advantages of simple structure, high reliability and low cost; and the Hall circuit board is convenient to install and not prone to getting loosen.
Description
Technical field:
The utility model relates to a kind of DC brushless motor.
Background technology:
Existing DC brushless motor comprises motor monomer and electric machine controller, described motor monomer comprises rotating shaft, rotor assembly, stator module, casing, front end housing, rear end cap, Hall circuit board and protective cover, rotor assembly is arranged in rotating shaft, stator module and casing link together and are nested in rotor assembly outside, front end housing and rear end cap are arranged on respectively casing two ends, shaft support is on the bearing of front end housing and rear end cap, Hall circuit board is arranged on rear end cap, protective cover is arranged on Hall circuit board, but there is following several problem in the DC brushless motor of this structure: 1) the installation difficulty of Hall circuit board, easily get loose, reliability is low, 2) installation site of Hall circuit board is difficult to adjust, and causes the position signalling of rotor assembly is detected and easily occurs relatively large deviation, affects motor operation, 3) detachable maintaining of Hall circuit board, replacing difficulty, cost is high.
Summary of the invention:
The purpose of this utility model is to provide a kind of DC brushless motor, this is simple in structure, Hall circuit board easy for installation, be difficult for getting loose, reliability is high, cost is low.
The purpose of this utility model is achieved by following technical proposals.
A kind of DC brushless motor, comprise motor monomer and electric machine controller, described motor monomer comprises rotating shaft, rotor assembly, stator module, casing, front end housing, rear end cap, Hall circuit board and protective cover, rotor assembly is arranged in rotating shaft, stator module and casing link together and are nested in rotor assembly outside, described stator module comprises stator core, overhang insulation and coil windings, overhang insulation is arranged on stator core end, coil windings is wound on stator core, front end housing and rear end cap are arranged on respectively casing two ends, shaft support is on the bearing of front end housing and rear end cap, Hall circuit board is arranged on rear end cap, described electric machine controller comprises control box and control circuit board, control box is arranged on rear end cap, control circuit board is arranged on control box the inside, the position signalling of Hall circuit board detection rotor assembly is also delivered to control circuit board processing by this signal, coil windings on control circuit board control stator module, it also comprises fixed mount, Hall circuit board is arranged on by fixed mount on the end face of rear end cap, protective cover is installed on Hall circuit board.
Rear end cap described above comprises end cap body, bearing pedestal in the middle of the end cap body and is connected to the some connecting plates between end cap body and bearing pedestal, and fixed mount is arranged on the end face of bearing pedestal, and Hall circuit board is arranged on fixed mount.
The described above screw that passes through is arranged on protective cover, Hall circuit board and fixed mount on rear end cap, on the lateral surface of bearing pedestal, be extended with some installation bases, screw passes protective cover, Hall circuit board and fixed mount and is screwed into installation base protective cover, Hall circuit board and fixed mount are fixedly mounted on rear end cap.
On the outer ledge of Hall circuit board described above, circumferentially offer some the first through holes, on fixed mount, be provided with some the second through holes that are communicated with the first through hole, screw passes from the first through hole and the second through hole, and described the first through hole and the second through hole all take the shape of the letter U.
On the outer ledge of protective cover described above, be down protruding with some fasteners, fastener is installed on the outer ledge of fixed mount bottom surface and Hall circuit board is pressed on the end face of fixed mount.
On the end face of protective cover described above, offer some third through-holes.
Third through-hole described above circumferentially distributes along the end face of protective cover, is radiated entends.
The end face centre position of protective cover described above is extended with boss, on the bottom surface of boss, offers cavity, and the end of rotating shaft is positioned at cavity the inside.
On the end face of fixed mount described above, be extended with some projections, offer some location holes on Hall circuit board, Hall circuit board is arranged on the end face of fixed mount, and projection passes from location hole.
The utility model compared with prior art, there is following effect: 1) rotor assembly is arranged in rotating shaft, stator module and casing link together and are nested in rotor assembly outside, front end housing and rear end cap are arranged on respectively casing two ends, shaft support is on the bearing of front end housing and rear end cap, Hall circuit board is arranged on rear end cap, described electric machine controller comprises control box and control circuit board, control box is arranged on rear end cap, control circuit board is arranged on control box the inside, the position signalling of Hall circuit board detection rotor assembly is also delivered to control circuit board processing by this signal, coil windings on control circuit board control stator module, it also comprises fixed mount, Hall circuit board is arranged on by fixed mount on the end face of rear end cap, protective cover is installed on Hall circuit board, this is simple in structure, Hall circuit board easy for installation, be difficult for getting loose, reliability is high, cost is low, 2) by screw, protective cover, Hall circuit board and fixed mount are arranged on rear end cap, on the lateral surface of bearing pedestal, be extended with some installation bases, screw passes protective cover, Hall circuit board and fixed mount and is screwed into installation base protective cover, Hall circuit board and fixed mount are fixedly mounted on rear end cap, this is simple in structure, easy for installation, reliability is high, 3) on the outer ledge of Hall circuit board, circumferentially offer some the first through holes, on fixed mount, be provided with some the second through holes that are communicated with the first through hole, screw passes from the first through hole and the second through hole, described the first through hole and the second through hole all take the shape of the letter U, can adjust the installation site of Hall circuit board by the first through hole and the second through hole, the position signalling of detection rotor assembly more exactly, reliability is high, improves the operational efficiency of motor, 4) on the outer ledge of protective cover, be down protruding with some fasteners, fastener is installed on the outer ledge of fixed mount bottom surface and Hall circuit board is pressed on the end face of fixed mount, simple in structure, easy for installation firmly, 5) on the end face of protective cover, offer some third through-holes, third through-hole circumferentially distributes along the end face of protective cover, be radiated entends, simple in structure, the condensed water that condenses upon protective cover inwall when motor operation can flow away by third through-hole, avoid condensation flow to Hall circuit board, damaging Hall circuit board affects motor operation, and reliability is high, 6) the end face centre position of protective cover is extended with boss, on the bottom surface of boss, offer cavity, the end of rotating shaft is positioned at cavity the inside, can avoid the lead-in wire of control box the inside to encounter operating machine shaft, cause lead-in wire to damage even motor short circuit, ensure motor reliability service, 7) on the end face of fixed mount, be extended with some projections, offer some location holes on Hall circuit board, Hall circuit board is arranged on the end face of fixed mount, and projection passes from location hole, simple in structure, and the location and installation of Hall circuit board is convenient.
Accompanying drawing explanation:
Fig. 1 is stereogram of the present utility model;
Fig. 2 is exploded view of the present utility model;
Fig. 3 is A-A partial enlarged drawing in Fig. 2;
Fig. 4 is vertical view of the present utility model;
Fig. 5 is B-B cutaway view in Fig. 4;
Fig. 6 is C-C partial enlarged drawing in Fig. 5;
Fig. 7 is the vertical view that the utility model does not have mounted motor controller;
Fig. 8 is D-D cutaway view in Fig. 7;
Fig. 9 is E-E partial enlarged drawing in Fig. 8.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figures 1 to 9, the utility model is a kind of DC brushless motor, comprise motor monomer and electric machine controller, described motor monomer comprises rotating shaft 1, rotor assembly 2, stator module 3, casing 4, front end housing 5, rear end cap 6, Hall circuit board 7 and protective cover 8, rotor assembly 2 is arranged in rotating shaft 1, stator module 3 links together and is nested in rotor assembly 2 outsides with casing 4, described stator module 3 comprises stator core 31, overhang insulation 32 and coil windings 33, overhang insulation 32 is arranged on stator core 31 ends, coil windings 33 is wound on stator core 31, front end housing 5 and rear end cap 6 are arranged on respectively casing 4 two ends, rotating shaft 1 is bearing on the bearing of front end housing 5 and rear end cap 6, Hall circuit board 7 is arranged on rear end cap 6, described electric machine controller comprises control box 9 and control circuit board 10, control box 9 is arranged on rear end cap 6, control circuit board 10 is arranged on control box 9 the insides, the position signalling of Hall circuit board 7 detection rotor assemblies 2 is also delivered to control circuit board 10 by this signal and is processed, control circuit board 10 is controlled coil windings 33 on stator module 3, it also comprises fixed mount 11, Hall circuit board 7 is arranged on by fixed mount 11 on the end face of rear end cap 6, protective cover 8 is installed on Hall circuit board 7.
By screw 12, protective cover 8, Hall circuit board 7 and fixed mount 11 are arranged on rear end cap 6, on the lateral surface of bearing pedestal 62, be extended with some installation bases 621, screw 12 passes protective cover 8, Hall circuit board 7 and fixed mount 11 and is screwed into installation base 621 protective cover 8, Hall circuit board 7 and fixed mount 11 are fixedly mounted on rear end cap 6.
On the outer ledge of Hall circuit board 7, circumferentially offer some the first through holes 71, on fixed mount 11, be provided with some the second through holes 110 that are communicated with the first through hole 71, screw 12 passes from the first through hole 71 and the second through hole 110, and described the first through hole 71 and the second through hole 110 all take the shape of the letter U.
On the outer ledge of protective cover 8, be down protruding with some fasteners 81, fastener 81 is installed on the outer ledge of fixed mount 11 bottom surfaces and Hall circuit board 7 is pressed on the end face of fixed mount 11.
On the end face of protective cover 8, offer some third through-holes 82.
Third through-hole 82 circumferentially distributes along the end face of protective cover 8, is radiated entends.
End face centre position at protective cover 8 is extended with boss 83, offers cavity 830 on the bottom surface of boss 83, and the end of rotating shaft 1 is positioned at cavity the inside.
On the end face of fixed mount 11, be extended with some projections 111, offer some location holes 72 on Hall circuit board 7, Hall circuit board 7 is arranged on the end face of fixed mount 11, and projection 111 passes from location hole 72.
Principle of the present utility model is: rotor assembly 2 is arranged in rotating shaft 1, stator module 3 links together and is nested in rotor assembly 2 outsides with casing 4, front end housing 5 and rear end cap 6 are arranged on respectively casing 4 two ends, rotating shaft 1 is bearing on the bearing of front end housing 5 and rear end cap 6, Hall circuit board 7 is arranged on rear end cap 6, control box 9 is arranged on rear end cap 6, control circuit board 10 is arranged on control box 9 the insides, Hall circuit board 7 is arranged on by fixed mount 11 on the end face of rear end cap 6, protective cover 8 is installed on Hall circuit board 7, this is simple in structure, Hall circuit board easy for installation, be difficult for getting loose, reliability is high, cost is low.
Claims (9)
1. a DC brushless motor, comprise motor monomer and electric machine controller, described motor monomer comprises rotating shaft (1), rotor assembly (2), stator module (3), casing (4), front end housing (5), rear end cap (6), Hall circuit board (7) and protective cover (8), rotor assembly (2) is arranged in rotating shaft (1), stator module (3) links together and is nested in rotor assembly (2) outside with casing (4), described stator module (3) comprises stator core (31), overhang insulation (32) and coil windings (33), overhang insulation (32) is arranged on stator core (31) end, coil windings (33) is wound on stator core (31), front end housing (5) and rear end cap (6) are arranged on respectively casing (4) two ends, rotating shaft (1) is bearing on the bearing of front end housing (5) and rear end cap (6), Hall circuit board (7) is arranged on rear end cap (6), described electric machine controller comprises control box (9) and control circuit board (10), control box (9) is arranged on rear end cap (6), control circuit board (10) is arranged on control box (9) the inside, the position signalling of Hall circuit board (7) detection rotor assembly (2) is also delivered to control circuit board (10) by this signal and is processed, control circuit board (10) is controlled the upper coil windings (33) of stator module (3), it is characterized in that: it also comprises fixed mount (11), Hall circuit board (7) is arranged on the end face of rear end cap (6) by fixed mount (11), protective cover (8) is installed on Hall circuit board (7).
2. a kind of DC brushless motor according to claim 1, it is characterized in that: described rear end cap (6) comprises end cap body (61), is positioned at the middle bearing pedestal (62) of end cap body (61) and is connected to end cap body (61) the some connecting plates (63) between bearing pedestal (62), fixed mount (11) is arranged on the end face of bearing pedestal (62), and Hall circuit board (7) is arranged on fixed mount (11).
3. a kind of DC brushless motor according to claim 2, it is characterized in that: by screw (12), protective cover (8), Hall circuit board (7) and fixed mount (11) are arranged on rear end cap (6), on the lateral surface of bearing pedestal (62), be extended with some installation bases (621), screw (12) passes protective cover (8), Hall circuit board (7) and fixed mount (11) and is screwed into installation base (621) protective cover (8), Hall circuit board (7) and fixed mount (11) are fixedly mounted on rear end cap (6).
4. a kind of DC brushless motor according to claim 3, it is characterized in that: on the outer ledge of Hall circuit board (7), circumferentially offer some the first through holes (71), on fixed mount (11), be provided with some the second through holes (110) that are communicated with the first through hole (71), screw (12) passes from the first through hole (71) and the second through hole (110), and described the first through hole (71) and the second through hole (110) all take the shape of the letter U.
5. according to a kind of DC brushless motor described in claim 1 or 2 or 3 or 4, it is characterized in that: on the outer ledge of protective cover (8), be down protruding with some fasteners (81), fastener (81) is installed on the outer ledge of fixed mount (11) bottom surface and Hall circuit board (7) is pressed on the end face of fixed mount (11).
6. a kind of DC brushless motor according to claim 5, is characterized in that: on the end face of protective cover (8), offer some third through-holes (82).
7. a kind of DC brushless motor according to claim 6, is characterized in that: described third through-hole (82) circumferentially distributes along the end face of protective cover (8), is radiated entends.
8. a kind of DC brushless motor according to claim 7, it is characterized in that: be extended with boss (83) in the end face centre position of protective cover (8), on the bottom surface of boss (83), offer cavity (830), the end of rotating shaft (1) is positioned at cavity the inside.
9. according to a kind of DC brushless motor described in claim 1 or 2 or 3 or 4, it is characterized in that: on the end face of fixed mount (11), be extended with some projections (111), on Hall circuit board (7), offer some location holes (72), Hall circuit board (7) is arranged on the end face of fixed mount (11), and projection (111) passes from location hole (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849503.7U CN203660853U (en) | 2013-12-20 | 2013-12-20 | DC brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849503.7U CN203660853U (en) | 2013-12-20 | 2013-12-20 | DC brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660853U true CN203660853U (en) | 2014-06-18 |
Family
ID=50927202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849503.7U Expired - Lifetime CN203660853U (en) | 2013-12-20 | 2013-12-20 | DC brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660853U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016000328A1 (en) * | 2014-07-01 | 2016-01-07 | 中山大洋电机股份有限公司 | Electric motor controller and electric motor applying same |
| WO2016155271A1 (en) * | 2015-03-31 | 2016-10-06 | 中山大洋电机股份有限公司 | Direct-current brushless motor |
| CN107516958A (en) * | 2016-06-15 | 2017-12-26 | 德昌电机(深圳)有限公司 | Rotor, the motor and electric tool with the rotor |
| CN108233660A (en) * | 2018-03-08 | 2018-06-29 | 中山大洋电机股份有限公司 | A kind of BLDC motors |
| USD887806S1 (en) | 2018-04-03 | 2020-06-23 | Milwaukee Electric Tool Corporation | Jigsaw |
| US10835972B2 (en) | 2018-03-16 | 2020-11-17 | Milwaukee Electric Tool Corporation | Blade clamp for power tool |
| US11014176B2 (en) | 2018-04-03 | 2021-05-25 | Milwaukee Electric Tool Corporation | Jigsaw |
| CN112997385A (en) * | 2018-12-04 | 2021-06-18 | 喜利得股份公司 | Brushless electric motor |
| CN113659792A (en) * | 2021-07-16 | 2021-11-16 | 深圳拓邦股份有限公司 | Brushless coreless motor and stator device |
| WO2023092890A1 (en) * | 2021-11-26 | 2023-06-01 | 中山大洋电机股份有限公司 | Outer rotor motor |
-
2013
- 2013-12-20 CN CN201320849503.7U patent/CN203660853U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016000328A1 (en) * | 2014-07-01 | 2016-01-07 | 中山大洋电机股份有限公司 | Electric motor controller and electric motor applying same |
| WO2016155271A1 (en) * | 2015-03-31 | 2016-10-06 | 中山大洋电机股份有限公司 | Direct-current brushless motor |
| US10468933B2 (en) | 2015-03-31 | 2019-11-05 | Zhongshan Broad-Ocean Motor Co., Ltd. | Brushless DC motor |
| CN107516958A (en) * | 2016-06-15 | 2017-12-26 | 德昌电机(深圳)有限公司 | Rotor, the motor and electric tool with the rotor |
| CN108233660A (en) * | 2018-03-08 | 2018-06-29 | 中山大洋电机股份有限公司 | A kind of BLDC motors |
| CN108233660B (en) * | 2018-03-08 | 2024-04-26 | 中山大洋电机股份有限公司 | BLDC motor |
| US10835972B2 (en) | 2018-03-16 | 2020-11-17 | Milwaukee Electric Tool Corporation | Blade clamp for power tool |
| US11014176B2 (en) | 2018-04-03 | 2021-05-25 | Milwaukee Electric Tool Corporation | Jigsaw |
| US11813682B2 (en) | 2018-04-03 | 2023-11-14 | Milwaukee Electric Tool Corporation | Jigsaw |
| USD887806S1 (en) | 2018-04-03 | 2020-06-23 | Milwaukee Electric Tool Corporation | Jigsaw |
| CN112997385A (en) * | 2018-12-04 | 2021-06-18 | 喜利得股份公司 | Brushless electric motor |
| US11979065B2 (en) | 2018-12-04 | 2024-05-07 | Hilti Aktiengesellschaft | Brushless electric motor |
| CN113659792A (en) * | 2021-07-16 | 2021-11-16 | 深圳拓邦股份有限公司 | Brushless coreless motor and stator device |
| WO2023092890A1 (en) * | 2021-11-26 | 2023-06-01 | 中山大洋电机股份有限公司 | Outer rotor motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |