CN208820652U

CN208820652U - DC brushless motor

Info

Publication number: CN208820652U
Application number: CN201821638013.1U
Authority: CN
Inventors: 徐仁荣
Original assignee: Changzhou Yongan Motor Factory Co Ltd
Current assignee: Changzhou Yongan Motor Factory Co Ltd
Priority date: 2018-10-09
Filing date: 2018-10-09
Publication date: 2019-05-03
Anticipated expiration: 2028-10-09

Abstract

The utility model provides a kind of DC brushless motor, including sequentially connected shell, rear end cap and sealing plate, stator and rotor are equipped in the shell, the rear end cap is equipped with partition close to the side of the shell, the partition is equipped with blind hole close to the side of the shell, it is equipped in the blind hole in the bearing of the rotor engagement, the partition is equipped with circuit board far from the side of the shell, and the partition is equipped with the through-hole for wiring.A kind of DC brushless motor provided by the utility model, using shell and rear end cap split settings, the heat for preventing brushless motor coil working from generating influences circuit board, while substantially increasing the convenience of maintenance.

Description

DC brushless motor

Technical field

The utility model relates to brushless motor technical fields, more particularly to a kind of DC brushless motor.

Background technique

Brshless DC motor is made of motor body and driver, is a kind of typical electromechanical integrated product.Due to Brushless direct current motor is run with autocontrol, so will not turn as the synchronous motor of heavy load starting under frequency control Another plus starting winding, will not generate oscillation and step-out in load sudden change on son.The brushless direct current motor of Small And Medium Capacity Permanent magnet mostly uses rare-earth Nd-Fe-B (Nd-Fe-B) material of high magnetic energy grade now.Therefore, rare earth permanent magnetic brushless motor Volume ratio reduces a seat No. with capacity threephase asynchronous.

In the prior art, the drive part of brushless motor and stator rotor are all mounted in electric machine casing, and with Technology development, the driving of brushless motor is more and more perfect, and required component is more and more, therefore to the building ring of drive part Border requirement is also higher and higher, and the heat that brushless motor coil working generates will affect the normal work of drive part, and work as nothing When brush motor drive part or stator rotor part are broken down, disassembly is difficult, and maintenance difficulty is big.

Utility model content

The technical problem to be solved by the utility model is in order to overcome the shortcomings in the prior art, the utility model mentions For a kind of DC brushless motor.

The utility model solves its technical problem technical solution to be taken: a kind of DC brushless motor, including according to Shell, rear end cap and the sealing plate of secondary connection, are equipped with stator and rotor in the shell, the rear end cap close to the shell one Side is equipped with partition, and the partition is equipped with blind hole close to the side of the shell, is equipped in the blind hole in the rotor engagement Bearing, the partition are equipped with circuit board far from the side of the shell, and the partition is equipped with the through-hole for wiring.

Shell and rear end cap split settings are used to that the circuit board being set in rear end cap to be made to separate with brushless motor coil, electricity Road plate is mounted on partition, and the heat for preventing brushless motor coil working from generating influences circuit board, meanwhile, when event occurs in circuit board Sealing plate need to only be removed and be repaired when barrier, rear end cap need to only removed and be repaired when stator rotor breaks down, significantly The convenience for improving maintenance is arranged bearing for being rotatablely connected rotor and partition in blind hole, improves the steady of working rotor Qualitative, through-hole is used to the line on brushless motor coil passing through through-hole and connect with circuit board.

Further, the heat that circuit board work generates in order to prevent influences circuit board and works normally, the rear end cover outer wall Circumferentially arranged with several radiating fins on face.

The beneficial effects of the utility model are: a kind of DC brushless motor provided by the utility model, using shell with after End cap split settings, the heat for preventing brushless motor coil working from generating influences circuit board, while substantially increasing maintenance just Victory.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is the structural schematic diagram of the best embodiment of the utility model；

Fig. 2 is the diagrammatic cross-section of rear end cap；

Fig. 3 is the right view of rear end cap.

In figure: 1, shell, 2, rear end cap, 3, sealing plate, 4, partition, 5, blind hole, 6, circuit board, 7, through-hole, 8, radiating fin.

Specific embodiment

The utility model is described in detail presently in connection with attached drawing.This figure is simplified schematic diagram, only in a schematic way Illustrate the basic structure of the utility model, therefore it only shows composition related with the utility model.

As shown in Figure 1-3, a kind of DC brushless motor of the utility model, including sequentially connected shell 1, rear end cap 2 With sealing plate 3,2 both ends of rear end cap are equipped with multiple threaded holes, make shell 1 and capping with after by the cooperation of screw and threaded hole End cap 2 is fixedly connected, and is equipped with stator and rotor in the shell 1, the rear end cap 2 close to the side of the shell 1 be equipped with every Plate 4, the partition 4 are equipped with blind hole 5 close to the side of the shell 1, are equipped in the blind hole 5 in the axis of the rotor engagement It holds, the bearing outer ring is embedded in the blind hole 5, and the partition 4 is equipped with circuit board 6 far from the side of the shell 1, described Partition 4 is equipped with the through-hole 7 for wiring.

Circumferentially arranged with several radiating fins 8 in 2 outside wall surface of rear end cap.

It is enlightenment, through the above description, relevant work with the above-mentioned desirable embodiment according to the utility model Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model Technical scope is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.

Claims

1. a kind of DC brushless motor, it is characterised in that: including sequentially connected shell (1), rear end cap (2) and sealing plate (3), institute It states and is equipped with stator and rotor in shell (1), the rear end cap (2) is equipped with partition (4) close to the side of the shell (1), described Partition (4) is equipped with blind hole (5) close to the side of the shell (1), is equipped in the blind hole (5) in the axis of the rotor engagement It holds, the partition (4) is equipped with circuit board (6) far from the side of the shell (1), and the partition (4) is equipped with for wiring Through-hole (7).

2. DC brushless motor as described in claim 1, it is characterised in that: circumferentially set in rear end cap (2) outside wall surface There are several radiating fins (8).