CN202586697U

CN202586697U - Direct-current brushless motor structure

Info

Publication number: CN202586697U
Application number: CN2012201931929U
Authority: CN
Inventors: 曾崇生; 唐松发
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2012-04-28
Filing date: 2012-04-28
Publication date: 2012-12-05
Anticipated expiration: 2022-04-28
Also published as: WO2013159493A1

Abstract

The utility model discloses a direct-current brushless motor structure. The direct-current brushless motor structure comprises a housing, a stator component, a rotor component, a front end cover, a rear end cover, a control box, and a circuit board. The stator component is mounted in the housing, the rotor component is born on the bearings of the front end cover and the bearings of the rear end cover and is embedded into the stator component, the front end cover and the rear end cover are mounted at two ends of the housing, the circuit board is mounted in the control box, a plurality of mounting holes are arranged on the control box, a plurality of threaded holes are formed in the rear end cover, threaded rods are threaded through the mounting holes and screwed into the threaded holes to lock the control box onto the rear end cover, a water drainage channel is opened on the rear end cover outside the threaded holes, and a water outlet port is opened on the end of the control box, wherein the water drainage channel is communicated with the water outlet port. According to the utility model, the waterproof problem and the water drainage problem with motors are solved, and advantages of simple structure, easy assembly, good waterproof effect and good water drainage effect are realized.

Description

A kind of dc brushless motor structure

Technical field:

The utility model relates to a kind of dc brushless motor structure.

Background technology:

Existing dc brushless motor (BLDC MOTOR) comprises casing, stator module, rotor assembly, front end housing, rear end cap, control box and wiring board, and stator module is nested in outside the rotor assembly, and casing and stator module are installed and connected; Front end housing and rear end cap are installed in the casing two ends, and wiring board is installed in the control box, and control box is provided with some installing holes; Offer some screwed holes on the rear end cap, screw rod passes installing hole and is screwed into locks control box on rear end cap in the screwed hole, and installing hole and screw rod contact position are through the seal washer sealing; But when this motor application during in air-conditioner outdoor unit; Seal washer easy ageing, the water capacity are prone to infiltrate motor, infiltrate the shipwreck of motor and discharge; The causes motor short circuit is burnt, and waterproof, drainage performance are poor.

Summary of the invention:

The purpose of the utility model provides a kind of dc brushless motor structure, and this structure solves motor waterproof, drainage problem, and is simple in structure, easy to assembly, and waterproof, drainage effect are good.

The purpose of the utility model is to be achieved through following technical scheme.

A kind of dc brushless motor structure comprises casing, stator module, rotor assembly, front end housing, rear end cap, control box and wiring board, and stator module is installed in the casing; Rotor assembly is bearing on the bearing of front end housing and rear end cap and is nested in the stator module, and front end housing and rear end cap are installed in the casing two ends, and wiring board is installed in the control box; Control box is provided with some installing holes; Offer some screwed holes on the rear end cap, screw rod passes installing hole and is screwed in the screwed hole locking control box on rear end cap, outside screwed hole, on the rear end cap, offers rhone; The end of control box offers delivery port, and rhone is communicated with delivery port.

Above-mentioned described in the installing hole outside, the control box bottom surface protrudes the control box boss downwards.

Above-mentioned described in the screwed hole outside, rhone bottom protrusion installation base.

Above-mentioned described rear end cap is provided with wire hole, protrusion wire hole boss on the wire hole outside, rear end cap end face.

The end face arranged outside of above-mentioned described rear end cap has some end cap boss, offers screw hole on the end cap boss.

The above-mentioned described end cap boss outside is provided with guiding gutter.

The utility model beneficial effect compared with prior art is: 1) the utility model is offered rhone outside screwed hole, on the rear end cap, and the end of control box offers delivery port, and rhone is communicated with delivery port; The water that infiltrates control box from installing hole flows in the rhone along screw rod, and from the delivery port outflow motor, rhone prevents to flow in the control box from the water that delivery port gets into simultaneously; Solve motor waterproof, drainage problem; Simple in structure, easy to assembly, waterproof, drainage effect are good; 2) protrude the control box boss downwards in the installing hole outside, control box bottom surface, boss is higher than the controller line plate, guarantees to seep water not invade wiring board, influences controller function; 3) protrusion installation base bottom the screwed hole outside, rhone prevents that the water of rhone from getting into screwed hole, influences the control box dismounting; 4) rear end cap is provided with wire hole, protrusion wire hole boss on the wire hole outside, rear end cap end face, and boss is higher than end face, can prevent that sealing flows to motor body through wire hole, causes the motor short circuit, influences the motor operate as normal; 5) the end face arranged outside of rear end cap has some end cap boss, offers screw hole on the end cap boss, and the end cap boss outside is provided with guiding gutter, and the end cap boss is higher than seam, if infiltration is come in, can avoid flowing to motor body, guarantees the motor operate as normal.

Description of drawings:

Fig. 1 is the stereogram of utility model;

Fig. 2 is the cutaway view of the utility model;

Fig. 3 is the A-A partial enlarged drawing of Fig. 2;

Fig. 4 is the exploded view of the utility model;

Fig. 5 is the B-B partial enlarged drawing of Fig. 4;

Fig. 6 is the C-C partial enlarged drawing of Fig. 4.

Embodiment:

Below through specific embodiment and combine accompanying drawing that the utility model is described in further detail.

Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the utility model is a kind of dc brushless motor structure, comprises casing 1, stator module 2, rotor assembly 3, front end housing 4, rear end cap 5, control box 6 and wiring board 7; Stator module 2 is installed in the casing 1, and rotor assembly 3 is bearing on the bearing of front end housing 4 and rear end cap 5 and is nested in the stator module 2; Front end housing 4 is installed in casing 1 two ends with rear end cap 5; Wiring board 7 is installed in 6 li of control boxes, and control box 6 is provided with some installing holes 61, offers some screwed holes 51 on the rear end cap 5; Screw rod 8 passes installing hole 61 and is screwed into 51 li locking of screwed hole control box 6 on rear end cap 5; Outside screwed hole 51, on the rear end cap 5, offer rhone 52, the end of control box 6 offers delivery port 63, and rhone 52 is communicated with delivery port 63; In installing hole 61 outsides, control box 6 bottom surfaces protrude control box boss 62 downwards.

As shown in Figure 5, in screwed hole 51 outsides, rhone 52 bottoms protrusions installation base 57.

As shown in Figure 6, rear end cap 5 is provided with wire hole 53, protrusion wire hole boss 54 on wire hole 53 outsides, rear end cap 5 end faces; The end face arranged outside of rear end cap 5 has some end cap boss 55, offers screw hole on the end cap boss 55; End cap boss 55 outsides are provided with guiding gutter 56.

The utility model flows to 52 li of rhones from the water that installing hole 61 infiltrates control box 6 along screw rod 8; From delivery port 63 outflow motors; Rhone 52 prevents to flow into 6 li of control boxes from the water that delivery port 63 gets into simultaneously, solves motor waterproof, drainage problem, and is simple in structure; Easy to assembly, waterproof, drainage effect are good.

Claims

1. dc brushless motor structure; Comprise casing (1), stator module (2), rotor assembly (3), front end housing (4), rear end cap (5), control box (6) and wiring board (7); Stator module (2) is installed in the casing (1); Rotor assembly (3) is bearing on the bearing of front end housing (4) and rear end cap (5) and is nested in the stator module (2), and front end housing (4) and rear end cap (5) are installed in casing (1) two ends, and wiring board (7) is installed in control box (6) lining; Control box (6) is provided with some installing holes (61); Offer some screwed holes (51) on the rear end cap (5), screw rod (8) passes installing hole (61) and is screwed into screwed hole (51) lining locks control box (6) on rear end cap (5), it is characterized in that: outside screwed hole (51), on the rear end cap (5), offer rhone (52); The end of control box (6) offers delivery port (63), and rhone (52) is communicated with delivery port (63).

2. a kind of dc brushless motor structure according to claim 1 is characterized in that: protrude control box boss (62) downwards in installing hole (61) outside, control box (6) bottom surface.

3. a kind of dc brushless motor structure according to claim 2 is characterized in that: protrusion installation base (57) bottom screwed hole (51) outside, rhone (52).

4. according to claim 1 or 2 or 3 described a kind of dc brushless motor structures, it is characterized in that: rear end cap (5) is provided with wire hole (53), protrusion wire hole boss (54) on wire hole (53) outside, rear end cap (5) end face.

5. a kind of dc brushless motor structure according to claim 1 is characterized in that: the end face arranged outside of rear end cap (5) has some end cap boss (55), and the end cap boss is offered screw hole on (55).

6. a kind of dc brushless motor structure according to claim 5 is characterized in that: end cap boss (55) outside is provided with guiding gutter (56).