CN2632927Y

CN2632927Y - Motor rear cover with carbon brush retainer structure

Info

Publication number: CN2632927Y
Application number: CN 03267031
Authority: CN
Inventors: 游孟萩
Original assignee: LONG HAWN ENTERPRISE CO Ltd
Current assignee: LONG HAWN ENTERPRISE CO Ltd
Priority date: 2003-07-09
Filing date: 2003-07-09
Publication date: 2004-08-11
Anticipated expiration: 2013-07-09

Abstract

The utility model relates to a motor back cover with a carbon brush holder, essentially comprising a back cover body forming two containing holes to contain the carbon brush rod; wherein, the inner and outer shaft ends of the containing hole are communicated with the outside, while one side wall in the containing hole is formed with a groove; the two carbon brush holders are respectively provided with a lapping piece and a rolling force spring; wherein, the lapping piece is arranged on the opening edge of the inner end in the containing hole, whereas the rolling force spring is connected with sealing covers which are respectively connected with the opening edge of the outer end of the containing hole.

Description

Motor bonnet with carbon brush retainer structure

Technical field

The utility model relates to the motor bonnet, is meant a kind of motor bonnet with carbon brush retainer structure especially.

Background technology

General known carbon brush retainer, as No. 273358 patent case of China's patent announcement, it is made of a plastic body, a bronze medal seat and a capping.When reality is used, be the both sides that are installed in the motor commutator with two groups of carbon brush retainers respectively, make and can continue commutator is the state that reclines by the rod of the carbon brush in each carbon brush retainer, reach predetermined effect.

But, above-mentioned carbon brush retainer, must distinguish and be fixed, and after fixing, still must rely on a bonnet that is supported by motor, be nested with at the motor rear, just can make the fixed-site of motor, and this bonnet must cover each carbon brush retainer (be about to each carbon brush retainer be contained in the inside of bonnet), to reach the preciseness after the overall package.But this mode is when the carbon brush that will change in the retainer, after must earlier bonnet being disassembled out, and the operation of changing again, not only suitable in the use inconvenience, and also because the too much cause of member has increased the difficulty of assembling.

Summary of the invention

At the problems referred to above, main purpose of the present utility model is to provide a kind of motor bonnet with carbon brush retainer structure, and it can make the carbon brush retainer can be set directly on the motor, improves the convenience of combination or dismounting.

Another purpose of the present utility model is to provide a kind of motor bonnet of carbon brush retainer structure, and its member is comparatively succinct and make the rigorous degree after the assembling better.

For achieving the above object, the utility model provides a kind of motor bonnet with carbon brush retainer structure, it consists predominantly of: a bonnet main body, being formed with two pairs is applied to for the ccontaining containing hole of carbon brush rod, inside and outside two axle heads of containing hole connect with extraneous, and one side sidewall in the containing hole is formed with a groove; Two carbon brush retainers have a bridge piece and a volume power spring respectively; The bridge piece hook joint is on the inner opening edge of containing hole, and volume power spring is connected on the bridge piece, is used for the pushing tow carbon brush; Two cappings are bonded on respectively on the outer end opening edge of containing hole.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model one preferred embodiment;

Fig. 2 is the cutaway view that preferred embodiment shown in Figure 1 and motor commutator connect.

Embodiment

Now enumerating following preferred embodiment and conjunction with figs. is elaborated.

As shown in Figure 1 and Figure 2, be a kind of motor bonnet 100 with carbon brush retainer structure that the utility model one preferred embodiment is provided, it consists predominantly of a bonnet main body 10, two carbon brush retainers 20 and two cappings 30, wherein:

Bonnet main body 10 is made by plastics, bakelite or other non-conductive material, bonnet main body 10 by one in the form of a ring socket part 11 and somely constitute jointly toward 12 of supporting parts interior and that be formed by connecting after the extension of a side simultaneously by the inwall of socket part 11 respectively.On 11 liang of corresponding positions, socket part, be formed with a containing hole 13 respectively, containing hole 13 connects the inside and outside wall of socket part 11, and on the containing hole 13 opening edge sides of outer wall, be formed with two corresponding clamping grooves 132, also be formed with a groove 131 on one side sidewall in the containing hole 13.

Each carbon brush retainer 20, have a bridge piece 21 and a volume power spring 22 respectively, bridge piece 21 is a metal sheet, the one end is formed with one and is the connecting portion 211 that colludes shape, the other end then is formed with a butting section 212 that is smooth vertical bending, and butting section 212 is in the other direction mutually with connecting portion 211 extends, and also is formed with on the position of contiguous connecting portion 211 on the figure of bridge piece 21 and colludes hole 213; Volume power spring 22, be rolled, its outside one end is formed with wears hook part 221, volume power spring 22 colludes hole 213 cross-under with what it wore hook part 221 and bridge piece 21, volume power spring 22 can be connected with bridge piece 21, and the volume power spring 22 after will connecting and bridge piece 21 be arranged on bonnet main body 10 containing hole 13 in, and the connecting portion 211 of bridge piece 21 ganged up with on the inwall of socket part 11, and the figure of bridge piece 21 can be contained in the groove 131.

Two cappings 30 are made by plastics or other nonconducting material respectively, and it is provided with corresponding clip projection 31, be used for the clamping groove 132 of bonnet main body 10 chimeric, with the opening of external wall of sealing containing hole 13.

Above-mentioned each bilge construction and the assembling mode thereof that is a preferred embodiment provided by the utility model, then again that occupation mode of the present utility model and The characteristics thereof is as follows:

At first, must earlier two carbon brush rods 40 be inserted in each containing hole 13 by the inwall of bonnet main body 10 respectively in use, with the bottom of carbon brush rod 40 and volume power spring 22 against, and will roll up power spring 22 and support, make volume power spring 22 produce the pre-power of an answer of pushing to carbon brush rod 40, again bonnet 100 is fixed on the outside of motor commutator 50, as shown in Figure 2, the pre-power effect of answer that makes the top of each carbon brush rod 40 be rolled up power spring 22, tightly abut on the commutator 50, making can be by producing predetermined effect by reclining of 50 in each carbon brush rod 40 and commutator.Therefore, the utility model is not only quite convenient in assembling, and when carbon brush rod 40 wears up to certain length and need change, only bonnet main body 10 must be pulled down, just can on bonnet main body 10, directly change the operation of carbon brush rod 40, again bonnet main body 10 locks are put in original position after the replacing and got final product, make the utility model not only assemble and disassemble all quite facility, and can significantly lower complicated member required when conventional construction adopted independent bonnet and independent carbon brush retainer in the past, required member is reduced, and whole preciseness is then better.

In addition, in the above-described embodiments, also linking on the butting section of carbon brush retainer has a conductor wire, and this conductor wire passes for the opening of external wall from containing hole.

Claims

1, a kind of motor bonnet with carbon brush retainer structure is characterized in that consisting predominantly of:

One bonnet main body is formed with two pairs and is applied to for the ccontaining containing hole of carbon brush rod, and inside and outside two axle heads of described containing hole connect with extraneous, and one side sidewall in the described containing hole is formed with a groove;

Two carbon brush retainers have a bridge piece and a volume power spring respectively, and described bridge piece hook joint is on the inner opening edge of described containing hole, and described volume power spring is connected on the described bridge piece, and the described carbon brush rod of pushing tow;

Two cappings are bonded on respectively on the outer end opening edge of described containing hole.

2, have the motor bonnet of carbon brush retainer structure according to claim 1, it is characterized in that: described bonnet main body is made by nonconducting material.

3, have the motor bonnet of carbon brush retainer structure according to claim 1, it is characterized in that: described bonnet main body by one in the form of a ring the socket part and somely constituted jointly toward supporting part interior and that be formed by connecting after the extension of a side simultaneously by the inwall of described socket part respectively.

4, the motor bonnet as having carbon brush retainer structure as described in the claim 3, it is characterized in that: described two containing holes are respectively formed on two opposite positions of described socket part.

5, the motor bonnet that has carbon brush retainer structure according to claim 1, it is characterized in that: the external end edge of described containing hole is formed with two clamping grooves, described two cappings are provided with and the corresponding clip projection of described clamping groove, and described clip projection and described clamping groove are rabbeted mutually.

6, have the motor bonnet of carbon brush retainer structure according to claim 1, it is characterized in that: be formed with a groove in the described containing hole, be used for ccontaining described bridge piece.

7, have the motor bonnet of carbon brush retainer structure according to claim 1, it is characterized in that: described bridge piece one end is formed with one and is the connecting portion that colludes shape, gangs up with on the inner opening edge of described containing hole.

8, have the motor bonnet of carbon brush retainer structure according to claim 1, it is characterized in that: be formed with on the described bridge piece and collude the hole; Described volume power spring one end is formed with wears the hook part, described wear hook part and described bridge piece collude the hole cross-under.

9, have the motor bonnet of carbon brush retainer structure according to claim 1, it is characterized in that: described capping is made by nonconducting material.

10, have the motor bonnet of carbon brush retainer structure according to claim 1, it is characterized in that: described bridge piece and described volume power spring are made by metal.