CN202634229U

CN202634229U - Brushless DC motor structure induced by Hall element

Info

Publication number: CN202634229U
Application number: CN 201220252859
Authority: CN
Inventors: 唐松发; 曾建华; 刘先军
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2012-05-30
Filing date: 2012-05-30
Publication date: 2012-12-26
Anticipated expiration: 2022-05-30
Also published as: WO2013177886A1

Abstract

The utility model discloses a brushless DC motor structure induced by a Hall element. The structure comprises a case, a stator component, a rotor component, a front end cover, a rear end cover, a magnet ring, a circuit board and a Hall element, wherein the rotor component is sleeved by the stator component; the case and the stator component are connected with each other; the front end cover and the rear end cover are installed at the two ends of the case; the rotor component comprises a rotor iron core and a magnet ring bracket installed at the end part of the rotor iron core; the magnet ring is installed on the magnet ring bracket; the circuit board is installed on the end surface of the front end cover or the rear end cover; a Hall fixing framework is installed on the circuit board; and the Hall element is installed on the Hall fixing framework and extends into the case to be positioned on the side of the magnet ring. The brushless DC motor structure has the advantages of simple structure, convenience in assembling, firm connection, reliable and easiness and accuracy in positioning.

Description

A kind of dc brushless motor structure of Hall element induction

Technical field:

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

Background technology:

The dc brushless motor (BLDC MOTOR) of existing Hall element induction adopts following dual mode usually, and first kind of mode is installed in magnet ring on the rotor tip support; The Hall wiring board is fixed on the overhang insulation of stator, and the second way shifts out rotor with reaction magnetic ring and is installed in the rotating shaft, then Hall Plate is fixed on the rear end cap; Assembling of first kind of structure and reliability are relatively poor; The Hall wiring board comes off easily, and trouble is installed, second kind of structure Hall wiring board assembling and positioning trouble.

Summary of the invention:

The purpose of the utility model provides the dc brushless motor structure of a kind of Hall element induction, and this is simple in structure, assemble simple and easyly, be connected firmly, good reliability, the location easily, accurate.

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

A kind of dc brushless motor structure of Hall element induction; Comprise casing, stator module, rotor assembly, front end housing, rear end cap, magnet ring, wiring board and Hall element, stator module is nested in outside the rotor assembly, and casing and stator module connect; Front end housing and rear end cap are installed in the casing two ends; Rotor assembly comprises rotor core and the magnet ring support that is installed in the rotor core end, and magnet ring is installed on the magnet ring support, and wiring board is installed on front end housing or the rear end cap end face; The Hall fixed mount is installed on the wiring board, and Hall element is installed on the Hall fixed mount and stretches into the side that is positioned at magnet ring in the casing.

Above-mentioned described stator module comprises stator core and the overhang insulation that is installed in the stator core end, and overhang insulation some reference columns protruding upward, Hall fixed mount are the some joint pins of protrusion downwards, and the afterbody of joint pin is provided with groove, and reference column embeds in the groove.

Above-mentioned described wiring board passes through screw lock on rear end cap.

Above-mentioned described Hall fixed mount and joint pin integrated injection molding.

The utility model beneficial effect compared with prior art is: 1) the utility model magnet ring is installed on the magnet ring support of rotor core end, and wiring board is installed on front end housing or the rear end cap end face, and the Hall fixed mount is installed on the wiring board; Hall element is installed on the Hall fixed mount and stretches into the side that is positioned at magnet ring in the casing; This is simple in structure, assembles simple and easyly, is connected firmly; Good reliability, location are easily, accurately; 2) the Hall fixed mount protrudes some joint pins downwards, and the afterbody of joint pin is provided with groove, and overhang insulation reference column protruding upward embeds in the groove, guarantees accurate location corresponding relation between Hall element and the stator winding, the circumferential location of realization wiring board; 3) wiring board passes through screw lock on rear end cap, only needs make a call to a screw, and assembling is simple, good reliability, the axial location of realization wiring board; 4) Hall fixed mount and joint pin integrated injection molding are suitable for and produce in batches, and be with low cost.

Description of drawings:

Fig. 1 is the stereogram of utility model;

Fig. 2 is the exploded view of utility model;

Fig. 3 is the structural representation of the utility model;

Fig. 4 is the A-A phantom of Fig. 3;

Fig. 5 is the B-B phantom of Fig. 3;

Fig. 6 is a C-C partial enlarged drawing among Fig. 5;

Fig. 7 is the exploded view of stator module, Hall fixed mount and the wiring board of the utility model.

Embodiment:

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

Embodiment one: extremely shown in Figure 7 like Fig. 1; The utility model is a kind of dc brushless motor structure of Hall element induction; Comprise casing 1, stator module 2, rotor assembly 3, front end housing 4, rear end cap 5, magnet ring 6, wiring board 7 and Hall element 8, stator module 2 is nested in outside the rotor assembly 3, and casing 1 connects with stator module 2; Front end housing 4 is installed in casing 1 two ends with rear end cap 5; Rotor assembly 3 comprises rotor core 31 and the magnet ring support 32 that is installed in rotor core 31 ends, and magnet ring 6 is installed on the magnet ring support 32, and wiring board 7 is installed on front end housing 4 or rear end cap 5 end faces; Hall fixed mount 71 is installed on the wiring board 7, and Hall element 8 is installed on the Hall fixed mount 71 and stretches into 1 li side that is positioned at magnet ring 6 of casing.

Embodiment two: like Fig. 6 and shown in Figure 7; On the basis of embodiment one, increase following technical characterictic: stator module 2 comprises stator core 21 and the overhang insulation 22 that is installed in stator core 21 ends; Overhang insulation 22 some reference columns 220 protruding upward; Hall fixed mount 71 is the some joint pins 710 of protrusion downwards, and the afterbody of joint pin 710 is provided with groove 711, and reference column 220 embeds 711 li of grooves.

Embodiment three: like Fig. 1, Fig. 2, Fig. 3, Fig. 5 and shown in Figure 6, on the basis of embodiment one or embodiment two, increase following technical characterictic: wiring board 7 is locked on the rear end cap 5 through screw 9.

Embodiment four: to shown in Figure 7, on the basis of embodiment two, increase following technical characterictic like Fig. 1: Hall fixed mount 71 and joint pin 710 integrated injection moldings.

Because the application is mechanical field, the obvious association of ability those of ordinary skill obtains: the technical characterictic independent assortment of the increase that embodiment two, embodiment three, embodiment four mention is combined into new technical scheme with the technical scheme of embodiment one.

The assembling process of the utility model wiring board is following: earlier Hall fixed mount 71 is installed on the wiring board 7; Hall fixed mount 71 is the some joint pins 710 of protrusion downwards; The afterbody of joint pin 710 is provided with groove 711, and the reference column 220 of stator end insulation 22 protrusions embeds 711 li of grooves, guarantees accurate location corresponding relation between Hall element 8 and the stator winding; Realize the circumferential location of wiring board 7, and then wiring board 7 is locked on rear end cap 5 end faces through screw 9.

Claims

1. the dc brushless motor structure of Hall element induction; Comprise casing (1), stator module (2), rotor assembly (3), front end housing (4), rear end cap (5), magnet ring (6), wiring board (7) and Hall element (8); Stator module (2) is nested in outside the rotor assembly (3); Casing (1) and stator module (2) connect; Front end housing (4) and rear end cap (5) are installed in casing (1) two ends; Rotor assembly (3) comprises rotor core (31) and be installed in the magnet ring support (32) of rotor core (31) end that magnet ring (6) is installed on the magnet ring support (32), it is characterized in that: wiring board (7) is installed on front end housing (4) or rear end cap (5) end face; Hall fixed mount (71) is installed on the wiring board (7), and Hall element (8) is installed in Hall fixed mount (71) and goes up and stretch into the side that casing (1) lining is positioned at magnet ring (6).

2. the dc brushless motor structure of a kind of Hall element induction according to claim 1; It is characterized in that: stator module (2) comprises stator core (21) and is installed in the overhang insulation (22) of stator core (21) end; Overhang insulation (22) some reference columns protruding upward (220); Hall fixed mount (71) protrudes some joint pins (710) downwards, and the afterbody of joint pin (710) is provided with groove (711), and reference column (220) embeds groove (711) lining.

3. the dc brushless motor structure of a kind of Hall element induction according to claim 1 and 2, it is characterized in that: wiring board (7) is locked on the rear end cap (5) through screw (9).

4. the dc brushless motor structure of a kind of Hall element induction according to claim 2 is characterized in that: Hall fixed mount (71) and joint pin (710) integrated injection molding.