CN210093090U - Brushless DC permanent magnet motor with Hall element - Google Patents
Brushless DC permanent magnet motor with Hall element Download PDFInfo
- Publication number
- CN210093090U CN210093090U CN201920756497.8U CN201920756497U CN210093090U CN 210093090 U CN210093090 U CN 210093090U CN 201920756497 U CN201920756497 U CN 201920756497U CN 210093090 U CN210093090 U CN 210093090U
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- hall element
- end cover
- circuit board
- stator core
- casing
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Abstract
The utility model discloses a take brushless DC permanent-magnet machine of hall element, main content is: the magnetic steel install on the rotor subassembly, the rotor subassembly left end is installed in the left end lid centre bore through left bearing, the left end lid is installed on casing left end face, the rotor subassembly right-hand member is installed in the right end lid centre bore through right bearing, the right-hand member lid is installed on the casing right-hand member face, stator core installs in the casing centre bore, left side insulation framework is installed on the stator core left surface, left side stator coil installs in the annular groove on left side insulation framework, right side insulation framework installs on the stator core right flank, right side stator coil installs in the annular groove on right side insulation framework, the circuit board is installed on left side insulation framework left surface, hall element welded mounting is on the circuit board. The utility model discloses simple structure, the signal does not receive the interference, need not dedicated permanent magnetism magnetic ring, has reduced motor length size, and motor simple to operate need not to adjust hall element's position.
Description
Technical Field
The utility model belongs to the technical field of a motor, concretely relates to take brushless DC permanent-magnet machine of hall element.
Background
The brushless direct current permanent magnet motor is an electronically commutated direct current motor, when and how to commutate the motor is determined according to the position of a rotor, a position sensor is used, the actually available position sensors are various, and a switch type hall position sensor (hall element) is generally used. The Hall element is required to be arranged on the motor to induce the position of the magnetic steel to generate a signal.
The existing Hall element mounting and fixing method comprises the following steps:
(1) the Hall element is arranged in an off-line notch of the iron core or in an addendum groove of the iron core (an addendum groove of the iron core), and induces the magnetic field of the rotor magnetic steel to generate a signal, so that the installation method saves space, but the Hall element is easily interfered by the change of the magnetic field of the stator armature and the interference of heating;
(2) the Hall element is welded on the circuit board, the circuit board is arranged on the circuit board framework, then the circuit board framework is arranged on the rear end cover, a special permanent magnet ring is additionally arranged on the shaft, the magnet ring and the motor rotor magnetic steel have the same pole number, the magnet ring and the motor rotor magnetic steel rotate together, the Hall element induces the magnetic field of the permanent magnet ring to generate an induction signal, and the position of the permanent magnet ring and the position of the rotor magnetic steel cannot be fixed during installation, so that the motor can normally work only after a correct position is found by adjusting the circumferential position of the circuit board framework on the rear end cover.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides a take hall element's brushless DC permanent-magnet machine, its simple structure, and the signal does not receive the interference, need not dedicated permanent magnetism magnetic ring, has reduced motor length size, and motor simple to operate need not the position of adjustment hall element.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
a brushless DC permanent magnet motor with Hall element, wherein: the magnetic steel is fixedly arranged on the rotor assembly, the left end of the rotor assembly is arranged in a center hole of the left end cover through the left bearing, the left end cover is fixedly arranged on the left end face of the casing, the right end of the rotor assembly is arranged in a center hole of the right end cover through the right bearing, the right end cover is fixedly arranged on the right end face of the casing, the right end of the rotor assembly is arranged in a center hole of the right end cover through the right bearing, the stator core is arranged in a center hole of the casing, the left insulating framework is fixedly arranged on the left side face of the stator core, the left stator coil is arranged in an annular groove on the left insulating framework, the right insulating framework is fixedly arranged on the right side face of the stator core, and the right stator coil is arranged in an annular groove on the right insulating framework, the circuit board pass through screw fixed mounting on left side insulating skeleton left surface, hall element welded mounting on the circuit board and hall element be located the circuit board right side.
In order to optimize the technical scheme, the specific measures adopted further comprise:
and a cylindrical positioning boss is arranged on the right side surface of the right end cover.
The central axis of the stator core is coincided with the central axis of the rotor assembly.
The outgoing line on the circuit board is led out from the left end cover through a perforation or from the shell through a perforation.
The utility model discloses a theory of operation: the Hall element is welded on the circuit board, a fixed position is reserved on the stator armature insulation framework, the circuit board is fixed on the insulation framework, the Hall element has a certain distance with the end face of the iron core, the rotor magnetic steel is lengthened by 2mm, and the Hall element directly induces the magnetic field of the rotor magnetic steel to generate a signal.
The utility model has the advantages of following several:
(1) the structure is simple, the installation and maintenance are very simple, and signals are not interfered;
(2) the special permanent magnet ring is not needed, the existing rotor magnetic steel is only increased by 2mm, and the cost is not increased much;
(3) the length size of the motor is reduced;
(4) the motor is convenient to install, and the position of the Hall element does not need to be adjusted.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein the reference numerals are: left stator coil 1, left bearing 2, hall element 3, circuit board 4, casing 5, stator core 6, right stator coil 7, right-hand member lid 8, rotor subassembly 9, right bearing 10, magnet steel 11, right insulating skeleton 12, left insulating skeleton 13, left end cover 14.
Detailed Description
The following further description of the embodiments of the present invention is made with reference to the accompanying drawings:
a brushless DC permanent magnet motor with Hall element, wherein: the magnetic steel rotor assembly comprises a left stator coil 1, a left bearing 2, a Hall element 3, a circuit board 4, a casing 5, a stator core 6, a right stator coil 7, a right end cover 8, a rotor assembly 9, a right bearing 10, magnetic steel 11, a right insulating framework 12, a left insulating framework 13 and a left end cover 14, wherein the magnetic steel 11 is fixedly arranged on the rotor assembly 9, the left end of the rotor assembly 9 is arranged in a central hole of the left end cover 14 through the left bearing 2, the left end cover 14 is fixedly arranged on the left end surface of the casing 5, the right end of the rotor assembly 9 is arranged in a central hole of the right end cover 8 through the right bearing 10, the right end cover 8 is fixedly arranged on the right end surface of the casing 5, the stator core 6 is arranged in a central hole of the casing 5, the left insulating framework 13 is fixedly arranged on the left side surface of the stator core 6, right side insulation frame 12 fixed mounting on stator core 6 right flank, right stator coil 7 install in the annular groove on right insulation frame 12, circuit board 4 pass through screw fixed mounting on left side insulation frame 13 left flank, hall element 3 welded mounting on circuit board 4 and hall element 3 be located circuit board 4 right side.
In the embodiment, a cylindrical positioning boss is arranged on the right side surface of the right end cover 8.
In the embodiment, the central axis of the stator core 6 is coincident with the central axis of the rotor assembly 9.
In the embodiment, the lead-out wires on the circuit board 4 are punched out of the left end cover 14 or punched out of the shell 5.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (4)
1. The utility model provides a take brushless DC permanent-magnet machine of hall element which characterized in that: comprises a left stator coil (1), a left bearing (2), a Hall element (3), a circuit board (4), a casing (5), a stator core (6), a right stator coil (7), a right end cover (8), a rotor assembly (9), a right bearing (10), magnetic steel (11), a right insulating framework (12), a left insulating framework (13) and a left end cover (14), wherein the magnetic steel (11) is fixedly arranged on the rotor assembly (9), the left end of the rotor assembly (9) is arranged in the central hole of the left end cover (14) through the left bearing (2), the left end cover (14) is fixedly arranged on the left end surface of the casing (5), the right end of the rotor assembly (9) is arranged in the central hole of the right end cover (8) through the right bearing (10), the right end cover (8) is fixedly arranged on the right end surface of the casing (5), the stator core (6) is arranged in the central hole of the casing (5), left side insulation frame (13) fixed mounting on stator core (6) left surface, left side stator coil (1) install in the annular groove on left side insulation frame (13), right side insulation frame (12) fixed mounting on stator core (6) right surface, right side stator coil (7) install in the annular groove on right insulation frame (12), circuit board (4) pass through screw fixed mounting on left side insulation frame (13) left surface, hall element (3) welded mounting on circuit board (4) and hall element (3) are located circuit board (4) right side.
2. The brushless DC permanent magnet motor with Hall element according to claim 1, wherein: and a cylindrical positioning boss is arranged on the right side surface of the right end cover (8).
3. The brushless DC permanent magnet motor with Hall element according to claim 1, wherein: the central axis of the stator core (6) is coincided with the central axis of the rotor assembly (9).
4. The brushless DC permanent magnet motor with Hall element according to claim 1, wherein: the outgoing line on the circuit board (4) is led out from the left end cover (14) through a perforation or is led out from the shell (5) through a perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920756497.8U CN210093090U (en) | 2019-05-23 | 2019-05-23 | Brushless DC permanent magnet motor with Hall element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920756497.8U CN210093090U (en) | 2019-05-23 | 2019-05-23 | Brushless DC permanent magnet motor with Hall element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210093090U true CN210093090U (en) | 2020-02-18 |
Family
ID=69479936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920756497.8U Expired - Fee Related CN210093090U (en) | 2019-05-23 | 2019-05-23 | Brushless DC permanent magnet motor with Hall element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210093090U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928884A (en) * | 2021-03-24 | 2021-06-08 | 重庆平江实业有限责任公司 | Novel brushless direct current motor for hydrogen fuel cell system |
| CN113659774A (en) * | 2021-08-06 | 2021-11-16 | 浙江乐歌智能驱动科技有限公司 | Mounting structure of brushless direct current motor hall sensor |
| WO2023040063A1 (en) * | 2021-09-15 | 2023-03-23 | 杭州松下马达有限公司 | Brushless direct-current electric motor |
-
2019
- 2019-05-23 CN CN201920756497.8U patent/CN210093090U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928884A (en) * | 2021-03-24 | 2021-06-08 | 重庆平江实业有限责任公司 | Novel brushless direct current motor for hydrogen fuel cell system |
| CN113659774A (en) * | 2021-08-06 | 2021-11-16 | 浙江乐歌智能驱动科技有限公司 | Mounting structure of brushless direct current motor hall sensor |
| CN113659774B (en) * | 2021-08-06 | 2022-09-02 | 浙江乐歌智能驱动科技有限公司 | Mounting structure of brushless direct current motor hall sensor |
| WO2023040063A1 (en) * | 2021-09-15 | 2023-03-23 | 杭州松下马达有限公司 | Brushless direct-current electric motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20200523 |