CN215221874U

CN215221874U - Brushless direct current motor with insulation assembly

Info

Publication number: CN215221874U
Application number: CN202120827535.1U
Authority: CN
Inventors: 高翔
Original assignee: Dongguan Changjincheng Electric Appliance Co ltd
Current assignee: Dongguan Changjincheng Electric Appliance Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-12-17
Anticipated expiration: 2031-04-22

Abstract

The utility model relates to the technical field of electric machines, concretely relates to brushless DC motor with insulating assemblies, including motor support, PCB board, insulating gasket, bearing, pivot, stator module and rotor subassembly, insulating gasket sets up in the lower surface of PCB board, motor support, PCB board and insulating gasket all are provided with the through-hole, motor support's lower part is installed stator module, motor support's upper end is provided with the locating part, the built-in being equipped with of motor support the bearing, the built-in setting of bearing the pivot, the lower extreme and the rotor subassembly of pivot are connected. The utility model discloses set up an insulating gasket between PCB board and stator module, can carry out insulation protection to the PCB board, be favorable to promoting the operating stability of motor to locating part through motor support fixes PCB board and insulating gasket between stator module and motor support, compact structure, and the steadiness is good, is favorable to improving the industrial production value of motor.

Description

Brushless direct current motor with insulation assembly

Technical Field

The utility model relates to the technical field of motors, concretely relates to brushless DC motor with insulating assemblies.

Background

The brushless dc motor has the characteristics of a dc brush motor and is also a device with frequency variation, so the brushless dc motor is also called dc frequency conversion, and is called BLDC in international name. The brushless dc motor has better operation efficiency, low-speed torque, rotation speed accuracy, etc. than the frequency converter of any control technology, so it is worth paying attention to the industry. Since the brushless dc motor needs to convert the magnetic field generated by the stator assembly, the PCB needs to be disposed to convert the current of the stator assembly. At present, because no insulation structure is arranged between the stator assembly and the PCB, the hidden trouble of electric leakage exists, and the temperature rise of a motor and the insulation performance of an electric appliance are influenced.

Disclosure of Invention

In order to overcome the defects and deficiencies existing in the prior art, the utility model aims to provide a brushless direct current motor with an insulation component.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a brushless DC motor with insulating assemblies, includes motor support, PCB board, insulating gasket, bearing, pivot, stator module and rotor subassembly, insulating gasket sets up in the lower surface of PCB board, motor support, PCB board and insulating gasket all are provided with the through-hole, install motor support's lower part stator module, the upper end of motor support pass PCB board and insulating gasket's through-hole and be provided with the locating part, the built-in being equipped with of motor support the bearing, the built-in setting of bearing the pivot, the lower extreme and the rotor subassembly of pivot are connected.

The lower part of the motor support is provided with a limiting groove, and the insulating gasket is provided with a limiting block clamped in the limiting groove.

Wherein, stator module includes iron core and coil, the iron core includes first cavity barrel and a plurality of from the outside protruding T type spare of establishing of first cavity barrel lateral wall, T type spare including establish the radial ascending first connecting piece of first cavity barrel and with the radial vertically second connecting piece of first cavity barrel, the outer end and the second connecting piece of first connecting piece are connected, the coil cover is established on the first connecting piece.

Wherein, T type spare is along the circumference equipartition of first hollow barrel.

Wherein, the rotor subassembly includes second cavity barrel and end cover, the end cover set up in the lower extreme of second cavity barrel, the inside laminating of second cavity barrel has a plurality of magnet, stator module sets up in the second cavity barrel, the pivot with the end cover is connected.

Wherein, the end cover is provided with a plurality of heat dissipation holes.

The insulating gasket is an insulating PET gasket, an insulating PVC gasket or an insulating rubber gasket.

The beneficial effects of the utility model reside in that: the utility model discloses set up an insulating gasket between PCB board and stator module, can carry out insulation protection to the PCB board, be favorable to promoting the operating stability of motor to locating part through motor support fixes PCB board and insulating gasket between stator module and motor support, compact structure, and the steadiness is good, is favorable to improving the industrial production value of motor. .

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an overall exploded view of the present invention;

fig. 3 is an exploded view of the motor bracket and the insulating spacer of the present invention;

FIG. 4 is an exploded view of the T-piece and coil of the present invention;

the reference signs are: 1-motor support, 2-PCB, 3-insulating spacer, 4-bearing, 5-rotating shaft, 6-first hollow cylinder, 7-T-shaped piece, 71-first connecting piece, 72-second connecting piece, 8-coil, 9-second hollow cylinder, 10-end cover, 11-heat dissipation hole, 12-magnet, 13-limiting piece, 14-limiting block and 15-limiting groove.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-4, which are not intended to limit the present invention.

As shown in fig. 1-4, a brushless dc motor with insulating assembly, includes motor support 1, PCB board 2, insulating washer 3, bearing 4, pivot 5, stator module and rotor subassembly, insulating washer 3 sets up in PCB board 2's lower surface, motor support 1, PCB board 2 and insulating washer 3 all are provided with the through-hole, install motor support 1's lower part stator module, the through-hole that PCB board 2 and insulating washer 3 were passed to motor support 1's upper end and be provided with locating part 13, the built-in bearing 4 that is equipped with of motor support 1, the built-in pivot 5 that is equipped with of bearing 4, the lower extreme and the rotor subassembly of pivot 5 are connected.

The utility model discloses set up an insulating pad 3 between PCB board 2 and stator module, can carry out insulation protection to PCB board 2, be favorable to promoting the operating stability of motor to locating part 13 through motor support 1 fixes PCB board 2 and insulating pad 3 between stator module and motor support 1, compact structure, the steadiness is good, is favorable to improving the industrial production value of motor.

The lower part of the motor support 1 is provided with a limiting groove 15, and the insulating gasket 3 is provided with a limiting block 14 clamped in the limiting groove 15.

The position of the insulating gasket 3 on the motor support 1 can be fixed through the matching of the limiting groove 15 and the limiting block 14, and the insulating gasket 3 is prevented from rotating randomly and generating abrasion on the PCB 2. Further can set up on insulating gasket 3 with 2 lower surface matched with reverse moulds of PCB board to improve the laminating compactedness of the two, spacing groove 15 and stopper 14's cooperation still play the effect of carrying out the location installation to PCB board 2 this moment, help controlling the non-circuit region that locating part 13 contradicted PCB board 2, protect PCB board 2 better, reduce the wearing and tearing destructiveness of locating part 13 vibration (pivot 5 brought) to PCB board 2.

Wherein, stator module includes iron core and coil 8, the iron core includes first cavity barrel 6 and a plurality of T type spare 7 of establishing from first cavity barrel 6 lateral wall to the evagination, T type spare 7 is including establishing the radial ascending first connecting piece 71 of first cavity barrel 6 and with the radial vertically second connecting piece 72 of first cavity barrel 6, the outer end and the second connecting piece 72 of first connecting piece 71 are connected, 8 covers of coil are established on first connecting piece 71. The tee 7 facilitates fixing the position and orientation of the coils 8 so that the magnetic field variation can be controlled to cause the rotor assembly to rotate.

The T-shaped pieces 7 are uniformly distributed along the circumferential direction of the first hollow cylinder 6, so that the magnetic field change generated by the current change can be controlled more conveniently.

The rotor assembly comprises a second hollow cylinder 9 and an end cover 10, the end cover 10 is arranged at the lower end of the second hollow cylinder 9, a plurality of magnets 12 are attached to the inside of the second hollow cylinder 9, the stator assembly is arranged in the second hollow cylinder 9, and the rotating shaft 5 is connected with the end cover 10. The current change of the stator component generates driving force to the magnet 12, so that the second hollow cylinder 9 generates rotary motion, and then the power is transmitted to the rotating shaft 5 through the end cover 10, and the rotating shaft 5 can be used as an output shaft to be connected with a device needing to be driven. The utility model discloses a rotor subassembly simple structure, easily industrial production.

The end cover 10 is provided with a plurality of heat dissipation holes 11, which is helpful for improving the heat dissipation capability of the motor.

Wherein, insulating pad 3 is insulating PET gasket, and PET matter is hard, and electrical insulation can be good, is applicable to the utility model discloses, in other alternative embodiments, insulating pad 3 can also be insulating PVC gasket or insulating rubber gasket.

The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.

Claims

1. The utility model provides a brushless DC motor with insulating assemblies which characterized in that: including motor support, PCB board, insulating washer, bearing, pivot, stator module and rotor subassembly, insulating washer sets up in the lower surface of PCB board, motor support, PCB board and insulating washer all are provided with the through-hole, install motor support's lower part stator module, the through-hole of PCB board and insulating washer is passed and is provided with the locating part in motor support's upper end, the built-in bearing that is equipped with of motor support, the built-in equipment of bearing the pivot, the lower extreme and the rotor subassembly of pivot are connected.

2. A brushless dc motor with an insulation assembly according to claim 1, wherein: the lower part of the motor support is provided with a limiting groove, and the insulating gasket is provided with a limiting block clamped in the limiting groove.

3. A brushless dc motor with an insulation assembly according to claim 1, wherein: stator module includes iron core and coil, the iron core includes first cavity barrel and a plurality of from the outside T type spare of establishing of first cavity barrel lateral wall to the evagination, T type spare including establish at the radial ascending first connecting piece of first cavity barrel and with the radial vertically second connecting piece of first cavity barrel, the outer end and the second connecting piece of first connecting piece are connected, the coil cover is established on the first connecting piece.

4. A brushless dc motor having an insulation assembly according to claim 3, wherein: the T-shaped parts are uniformly distributed along the circumferential direction of the first hollow cylinder.

5. A brushless dc motor with an insulation assembly according to claim 1, wherein: the rotor subassembly includes second cavity barrel and end cover, the end cover set up in the lower extreme of second cavity barrel, the inside laminating of second cavity barrel has a plurality of magnet, stator module sets up in second cavity barrel, the pivot with the end cover is connected.

6. A brushless DC motor with an insulation assembly according to claim 5, characterized in that: the end cover is provided with a plurality of heat dissipation holes.

7. A brushless dc motor with an insulation assembly according to claim 1, wherein: the insulating gasket is an insulating PET gasket, an insulating PVC gasket or an insulating rubber gasket.