CN2285939Y

CN2285939Y - Outside housing cover of radiator fan for motor

Info

Publication number: CN2285939Y
Application number: CN 97200475
Authority: CN
Inventors: 施振山
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-15
Filing date: 1997-01-15
Publication date: 1998-07-08
Anticipated expiration: 2007-01-15

Abstract

The utility model provides an outside housing cover of a radiator fan for a motor, which has the advantages of easy processing, easy installation and convenient maintenance. The utility model is composed of the outside housing cover which is connected with an end cover of a motor, wherein, the axial side of the hollow cylindrical outside housing cover is opened; inner convex inlaying edges and clamping edges are radially distributed at intervals at the cylindrical surface of the inner periphery of the outside housing cover, wherein, inlaying edges near the opening side and inner concave ring grooves which are formed between the end cover of a motor and a base shell are clamped, inlaid and positioned with each other, clamping edges which are away from the opening side are arranged at the outer side of the ring edge of the outer end surface of the axial side of the end cover. When the utility model is assembled, inner convex clamping edges on the outside housing cover are clamped into inner concave ring grooves only by sheathing the outside housing cover into the end cover and pushing the outside housing cover inwards in axial direction, and axial positioning is realized.

Description

The free screwing type outside housing cover of motor radiating fan.

The utility model relates to a kind of motor parts, particularly a kind of free screwing type outside housing cover of motor radiating fan.

Present electric machine structure as shown in Figure 1, the intrinsic stator 2 of cover in basic shell 1, and movable sleeve is provided with rotor 3 in the stator 2,1 liang of stomidium place has linked a left side respectively at basic shell, right end cap 4 and 5, the intrinsic radiator fan 6 of cover on the overhanging rotating shaft section 31 of rotor, detain cover one outside housing cover 7 again in fan 6 outsides, outside housing cover 7 adopts screw connecting mode with left end cap 4, promptly circumferentially be drilled with a plurality of screws 401 that are screwed mutually with screw 8 at interval at end cap 4, and circumferentially also be drilled with some unthreaded holes 701 at enclosing cover 7, when both connect, need rotation and change vertically to push away outside housing cover 7 so that the unthreaded hole 701 on the cover cap 7 can be aimed at the screw 401 on the left end cap 4.Just can be screwed into screw 8 then.The existing problem of the connected mode of this structure is as follows:

Because the outside housing cover 7 of button cover fan 6 adopts screw to be connected with left end cap 4, therefore, need on both, all will hole, and will be in the internal tapping of the hole of left end cap 4, this has not only brought trouble to processing, increases man-hour and cost simultaneously, and has brought inconvenience to assembling.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of prior art, and a kind of process and assemble is simple, assembling is efficient and convenient, the free screwing type outside housing cover of labour-saving motor radiating fan and provide.

The purpose of this utility model is to realize by following technical scheme:

The utility model is made of the outside housing cover that is connected with electric motor end cap, outside housing cover is a hollow cylindrical that side is uncovered, it is characterized in that: the perimeter surface axially spaced-apart is distributed with radially the embedding rib and the card rib of convex in outside housing cover cylindraceous, wherein near concave ring groove in formed between the embedding rib of open-position-side and electric motor end cap and basic shell mutually inlay card locate, and be positioned at the outside of the ring edge of end-cover axle side outer face away from the card rib of open-position-side.During assembling, only need with outside housing cover be inserted in end cap and vertically in push away, can make interior convex catching edge on the outside housing cover snap in in the concave ring groove and realize axial location.

Therefore remarkable result of the present utility model is as follows:

The 1st: owing to adopt the engaging location structure, thereby, need not drilling and tapping, both solved difficult punching on anchor ring, problems such as the difficult processing of tapping can reduce cost again.

The 2nd: the contraposition screw is also stubborn one by one tears screw open owing to need not, and not only makes laborsaving the saving time of assembling, and has solved the problem that screw easily gets loose and loses.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing:

Fig. 1 is the section of structure of existing motor;

Fig. 2 is STRUCTURE DECOMPOSITION figure of the present utility model;

Fig. 3 is a section of structure of the present utility model;

Be described in detail below in conjunction with 2 to 3 pairs of concrete structures of the present utility model of accompanying drawing.

It is one that be connected with motor one side end cap 4 and with radiator fan 6 button covers outside housing cover 7 within it, outside housing cover 7 is that a side is uncovered hollow tube-shape, it is characterized in that: the axially spaced-apart in the interior perimeter surface of the tubular of outside housing cover 7 is distributed with radially the embedding rib 71 and the card rib 72 of convex, wherein near concave ring groove 12 in formed between the embedding rib 71 of open-position-side and end cap 4 and the motor case 1 mutually inlay card locate, be positioned at the axial outside at the ring edge place of 4 side outer faces of end cap away from the card rib 72 of its open-position-side.Ginseng Fig. 2 and Fig. 3

Embedding rib 71 and card rib 72 for outside housing cover one-body molded forms radially in convex the continuous rib of U-loop shape or be interrupted the segmental arc rib of distribution.Referring to Fig. 2 and Fig. 3

During assembling, as long as outside housing cover 7 is pushed vertically, embedding rib 71 can enter and annular groove 12 inlay cards location, and card rib 72 can play the axial limiting effect.Referring to Fig. 2

Cooperate bulge loop 11 in the basic shell 1 respective side axial projection one that cooperates with end cap 4 rims of the mouth.Referring to Fig. 2

Claims

1, the free screwing type outside housing cover of motor radiating fan, it be one that be connected with motor one side end cap (4) and with radiator fan (6) button cover outside housing cover (7) within it, outside housing cover (7) is that a side is uncovered hollow tube-shape, it is characterized in that: the axially spaced-apart in the interior perimeter surface of the tubular of outside housing cover (7) is distributed with radially the embedding rib (71) and the card rib (72) of convex, wherein near concave ring groove (12) in formed between the embedding rib (71) of open-position-side and end cap (4) and the motor case (1) mutually inlay card locate, be positioned at the axial outside at the ring edge place of end cap (a 4) side outer face away from the card rib (72) of its open-position-side.

2, according to the free screwing type outside housing cover of the described motor radiating fan of claim 1, it is characterized in that: embedding rib (71) and card rib (72) for outside housing cover one-body molded forms radially in convex the continuous rib of U-loop shape or be interrupted the segmental arc rib of distribution.