CN202260950U

CN202260950U - Brushless DC hub motor

Info

Publication number: CN202260950U
Application number: CN2011203765882U
Authority: CN
Inventors: 何章; 熊知明
Original assignee: CHANGZHOU GOLDEN TECHNOLOGY Co Ltd
Current assignee: CHANGZHOU GOLDEN TECHNOLOGY Co Ltd
Priority date: 2011-10-09
Filing date: 2011-10-09
Publication date: 2012-05-30
Anticipated expiration: 2021-10-09

Abstract

The utility model discloses a brushless DC hub motor which comprises first end covers, second end covers, first bearings, second bearings, a shaft, rotor cores, stator cores, stator coils, stator brackets, permanent magnets and controllers, wherein, the outer ring of each first bearing is installed in a first bearing hole of the corresponding first end cover, whereas the inner ring is installed on the shaft; the outer ring of each second bearing is installed in the second bearing hole of the corresponding second end cover; the first end covers and the second end covers are both fixedly connected with the rotor cores; the permanent magnets are fixed on the inner walls of the rotor cores; the output ends of the controllers are electrically connected with the stator coils; the hub motor further comprises controller mounting seats which are fixedly connected with the controllers; ring-shaped cylinder bodies are arranged on the stator brackets; the controller mounting seats are fixedly connected with the open ends of the ring-shaped cylinder bodies; the controllers are mounted in the ring-shaped cylinder bodies; and the inner rings of the second bearings are installed on the outer walls of the ring-shaped cylinder bodies. Therefore, the controller can be replaced conveniently, and the heat radiation performance is good.

Description

A kind of brushless DC hub motor

Technical field

The utility model relates to a kind of wheel hub motor, specifically, relates to a kind of brushless DC hub motor with controller.

Background technology

The brushless DC hub motor of existing tape controller, the Internal and external cycle of its two bearings are installed in respectively in the axle and the bearing chamber of end cap of motor, and controller is installed in the centre of stator support, and the brake block of motor is directly installed on the end cap of motor.Controller is positioned at the inside of motor, runs into the situation that controller damages, and the end cap that just need open motor carries out maintenance process, the replacement trouble, and be not easy heat radiation.

Summary of the invention

The purpose of the utility model has been to provide convenient replacement of a kind of controller and the good brushless DC hub motor of thermal diffusivity.

The utility model realizes that the technical scheme of above-mentioned purpose is that a kind of brushless DC hub motor comprises first end cap, second end cap, clutch shaft bearing, second bearing, axle, rotor core, stator core, stator coil, stator support, permanent magnet and controller; Said stator support places in the cavity that is surrounded jointly by first end cap, rotor core and second end cap and with axle and is fixedly connected; Said stator core is fixed on the stator support, and the outer ring of said clutch shaft bearing is contained in the clutch shaft bearing hole of first end cap, and the inner ring of clutch shaft bearing is contained on the axle; The outer ring of said second bearing is contained in second dead eye of second end cap; First end cap all is fixedly connected with rotor core with second end cap, and permanent magnet is fixed on the inwall of rotor core, and the output of said controller is electrically connected with stator coil; Its innovative point is: also comprise the controller mount pad; Said controller is fixedly connected with the controller mount pad, has circular cylinder on the said stator support, and said controller mount pad is fixedly connected with the openend of circular cylinder; And said controller is installed in the circular cylinder, and the inner ring of said second bearing is contained on the outer wall of circular cylinder.

The lead-out wire of said controller passes the slotted eye on the stator support and is electrically connected with stator coil.

Said controller mount pad passes through screw on the circular cylinder of stator support.

Said second end cap outside is fixed with the folded base of stopping, and passes outside the mesopore of the folded base of stopping to the loose fit of said axle, and also has grid on the said folded base of stopping.

The openend of the circular cylinder of said stator support stretches out the axis hole of second end cap.

The controller of the utility model is installed in the controller mount pad, and said controller mount pad is fixedly connected with the openend of the circular cylinder of stator support, and such structure is when running into the situation of controller damage; Only need take off the folded base of stopping, just can controller mount pad and controller be taken off, and replace controller easily being inconjunction with; Easy to maintenance, again because controller is positioned at the outer end of second end cap relatively, so thermal diffusivity might as well; Make the controller life-span long, not fragile.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the left view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.

As shown in Figure 1; A kind of brushless DC hub motor; Comprise first end cap 3, the second end cap 3', clutch shaft bearing 11, second bearing 12, axle 1, rotor core 5, stator core 6, stator coil 15, stator support 7, permanent magnet 8 and controller 4, said stator support 7 places by being fixedly connected in first end cap 3, rotor core 5 and the cavity 9 that the second end cap 3' surrounds jointly and with axle 1, and said stator core 6 is fixed on the stator support 7; The outer ring of said clutch shaft bearing 11 is contained in the clutch shaft bearing hole 3-1 of first end cap 3; The inner ring of clutch shaft bearing 11 is contained on the axle 1, and the outer ring of said second bearing 12 is contained in the second dead eye 3'-1 of the second end cap 3', and first end cap 3 all is fixedly connected with rotor core 5 with the second end cap 3'; Permanent magnet 8 is fixed on the inwall of rotor core 5; The output of said controller 4 is electrically connected with stator coil 15, also comprises controller mount pad 13, and said controller 4 is fixedly connected with controller mount pad 13; Has circular cylinder 7-1 on the said stator support 7; Said controller mount pad 13 is fixedly connected with the openend of circular cylinder 7-1, and said controller 4 is installed in the circular cylinder 7-1, and the inner ring of said second bearing 12 is contained on the outer wall of circular cylinder 7-1.

The lead-out wire 2 of said controller 4 passes the slotted eye 7-2 on the stator support 7 and is electrically connected with stator coil 15.

Said controller mount pad 13 is fixed on the circular cylinder 7-1 of stator support 7 through screw 14.

The said second end cap 3' outside is fixed with the folded base 10 of stopping, and passes outside the mesopore of the folded base 10 of stopping to 1 loose fit of said axle, and also has grid 10-1 on the said folded base 10 of stopping.

As shown in Figure 2, the said second end cap 3' outside is fixed with the folded base 10 of stopping, and passes outside the mesopore of the folded base 10 of stopping to 1 loose fit of said axle, and also has grid 10-1 on the said folded base 10 of stopping.The folded base 10 of stopping is used for installing the folded sheet of stopping specially, and the grid 10-1 on the folded base 10 of stopping can play action of fan, helps controller 4 heat radiations.

The openend of the circular cylinder 7-1 of said stator support 7 stretches out the axis hole of the second end cap 3'.

In the time of the utility model installation and control device 4; Earlier controller 4 is fixed on the controller mount pad 13; Again this controller 4 is sleeved on the axle 1 and with controller mount pad 13 and is tightened on the circular cylinder 7-1 of stator support 7; And controller mount pad 13 is positioned at the outer end of controller 4, and the folded base 10 of stopping is positioned at the outer end of controller mount pad 13 and is fixedly connected with the second end cap 3'.

Claims

1. brushless DC hub motor; Comprise first end cap (3), second end cap (3'), clutch shaft bearing (11), second bearing (12), axle (1), rotor core (5), stator core (6), stator coil (15), stator support (7), permanent magnet (8) and controller (4); Said stator support (7) places in the cavity (9) that is surrounded jointly by first end cap (3), rotor core (5) and second end cap (3') and with axle (1) and is fixedly connected; Said stator core (6) is fixed on the stator support (7); The outer ring of said clutch shaft bearing (11) is contained in the clutch shaft bearing hole (3-1) of first end cap (3); The inner ring of clutch shaft bearing (11) is contained on the axle (1); The outer ring of said second bearing (12) is contained in second dead eye (3'-1) of second end cap (3'); First end cap (3) all is fixedly connected with rotor core (5) with second end cap (3'), and permanent magnet (8) is fixed on the inwall of rotor core (5), and the output of said controller (4) is electrically connected with stator coil (15); It is characterized in that: also comprise controller mount pad (13); Said controller (4) is fixedly connected with controller mount pad (13), has circular cylinder (7-1) on the said stator support (7), and said controller mount pad (13) is fixedly connected with the openend of circular cylinder (7-1); And said controller (4) is installed in the circular cylinder (7-1), and the inner ring of said second bearing (12) is contained on the outer wall of circular cylinder (7-1).

2. brushless DC hub motor according to claim 1 is characterized in that: the lead-out wire (2) of said controller (4) passes the slotted eye (7-2) on the stator support (7) and is electrically connected with stator coil (15).

3. brushless DC hub motor according to claim 1 and 2 is characterized in that: said controller mount pad (13) is fixed on the circular cylinder (7-1) of stator support (7) through screw (14).

4. brushless DC hub motor according to claim 1; It is characterized in that: said second end cap (3') outside is fixed with the folded base (10) of stopping; Pass outside the mesopore of folded base (10) of stopping to (1) loose fit of said axle, also have grid (10-1) on the said folded base (10) of stopping.

5. brushless DC hub motor according to claim 1 is characterized in that: the openend of the circular cylinder (7-1) of said stator support (7) stretches out the axis hole of second end cap (3').