CN214753561U

CN214753561U - A protective structure of a contactor and a contactor

Info

Publication number: CN214753561U
Application number: CN202120936998.1U
Authority: CN
Inventors: 刘长源; 张协利; 黄仁灿
Original assignee: Xiamen Hongfa Electrical Safety and Controls Co Ltd
Current assignee: Xiamen Hongfa Electrical Safety and Controls Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-16
Anticipated expiration: 2031-04-30

Abstract

The utility model relates to a protective structure of a contactor and a contactor. The protective structure of the contactor comprises a protective cover for covering movable parts on a contactor housing, a cavity is formed on the bottom surface of the protective cover, and the cavity is formed on the bottom surface of the protective cover. The cavity has a front end opening, a rear end side wall opposite the front end opening, a left side wall and a right side wall opposite the left side wall, and the left side wall and the right side wall are formed by being arranged in a gap with the rear end side wall A partition gap, and the left side wall and the right side wall both protrude a first flange inward to form a chute, the contactor housing is protruded with a boss, and the top of the outer end of the boss is also A second flange extends outward; the boss is inserted into the cavity through the front opening of the cavity of the protective cover, and the second flange is snapped into the chute to form an interference fit. The reliable fixation and long-term use of the protective cover are realized.

Description

Protective structure of contactor and contactor

Technical Field

The utility model relates to an electrical device field, concretely relates to protective structure of contactor and have this protective structure's contactor.

Background

In the prior art, in order to protect a moving part (such as a contact supporting moving part) of a contactor, a protective cover is usually added to cover the moving part, and the protective cover mainly plays a role in dust prevention and misoperation prevention; the traditional opaque protective cover is generally made of nylon elastic materials, so that the transparency is weak; in order to visually confirm the position of the moving part, a protective cover made of a transparent material is also provided in the prior art, but the elasticity of a high-transparency material such as a PC (polycarbonate) material is weak, and the assembly mode of the protective cover is as disclosed in CN202307714U, the protective cover and the contactor shell are limited by matching of a dovetail groove, and then a hook on the protective cover is matched in a concave groove of the contactor shell to realize fixation. Although the protection casing has been realized dismantling fixedly to this kind of structure, the elastic deformation ability that can make the couple is installed and removed repeatedly of protection casing, the resistance to wear is relatively poor to easy wearing and tearing, fracture influence and influence part life, life is shorter.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses an improve above-mentioned problem, provide a protective structure of contactor and have this protective structure's contactor.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

a protection structure of a contactor comprises a protection cover for covering a moving part on a contactor shell, wherein a cavity is formed in the bottom surface of the protection cover, the cavity is provided with a front end opening, a rear end side wall opposite to the front end opening, a left side wall and a right side wall opposite to the left side wall, the left side wall and the right side wall are both inwards protruded with a first flange to form a sliding chute, the sliding chute and the rear end side wall are arranged in a clearance mode to form a separation notch with the rear end side wall, a boss is protruded on the contactor shell, and a second flange is further outwards extended from the top of the outer end of the boss; the boss is inserted into the cavity through the front end opening of the cavity of the protective cover, and the second flange is clamped into the sliding groove to form interference tight fit.

Furthermore, the bottoms of the first flanges are both convexly provided with bulges, and the bulges are abutted against the surface of the contactor shell.

Further, the outer surface of the convex bud is an arc-shaped surface.

Further, the protection casing still is formed with the elasticity hasp that extends to the cavity in, still be equipped with the draw-in groove on the contactor casing, elasticity hasp joint cooperate in the draw-in groove of contactor casing.

Furthermore, the elastic lock catch is formed by integrally extending the side wall of the rear end.

Further, set up the opening that holds the moving part on the contactor casing, the boss is equipped with a plurality ofly and distributes in both ends around holding the opening.

Furthermore, the front and rear ends of the left side wall and the right side wall of the cavity are provided with inward bulges on the first flanges so as to be respectively matched with the bosses at the front and rear ends of the accommodating opening.

Furthermore, the surface of the contactor shell is provided with a raised matching platform, and the boss is positioned on the matching platform; the protection casing lid in on the cooperation platform, and rear end lateral wall still downwardly extending to the butt on the lateral direction step face of cooperation platform.

Furthermore, the protection casing is transparent protection casing, and the material is the polycarbonate material.

A contactor at least comprises the protection structure of the contactor.

Through the utility model provides a technical scheme has following beneficial effect:

in this scheme, left side wall and right side wall all are the clearance setting with rear end lateral wall and form one and cut off the breach, so, make first flange possess fine elastic deformation ability, when assembling, the second flange card is gone into when in the spout, through the elastic deformation of first flange, can be fine form the interference tight fit with the second flange, realize the fixed mounting of protection casing and contactor casing, during the dismantlement, as long as external force acts on the protection casing and makes its frictional force that overcomes the interference tight fit and produce outwards slide, can realize dismantling. Thus, even a highly transparent shield having poor elastic deformability can be reliably fixed and used for a long time.

Drawings

Fig. 1 is a perspective view illustrating the assembly of the shield to the contactor housing in the embodiment;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic perspective view of the shield according to the embodiment;

FIG. 5 is a bottom view of the shield of the embodiment;

FIG. 6 is a front view of the shield of the embodiment;

FIG. 7 is a top view of the structure of FIG. 2;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 7;

fig. 10 is a cross-sectional view taken along line C-C of fig. 7.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 10, the present embodiment provides a protection structure of a contactor, which includes a protection cover 20 for covering a movable member (such as a contact supporting moving member, etc., not shown) on a contactor housing 10, the bottom surface of the shield 20 is formed with a cavity 201, the cavity 201 has a front opening 211, a rear side wall 212 opposite to the front opening 211, a left side wall 213 and a right side wall 214 opposite to the left side wall 213, the left sidewall 213 and the right sidewall 214 are disposed with a gap from the rear sidewall 212 to form a blocking gap 202, and the left side wall 213 and the right side wall 214 both project the first flange 22 inwardly to form the slide groove 23, in this way, the first flange 22 is not connected to other structures (particularly the rear end side wall 212), so that the first flange 212 has a good elastic deformation capability, i.e., the rear end side wall does not affect the elastic deformation of the first flange 22 at all.

A boss 11 protrudes from the contactor housing 10, and a second flange 111 extends outwards from the top of the outer end of the boss 11; boss 11 inserts in cavity 201 through the front end opening 211 of cavity 201 of protection casing 20, and second flange 111 card goes into in the spout 23, at this moment, through the elastic deformation of first flange 22, can be fine form the interference tight fit with second flange 111, realize the fixed mounting of protection casing 20 and contactor housing 10, during the dismantlement, as long as external force acts on protection casing 20 and makes its frictional force of overcoming the interference tight fit production outwards slide, can realize dismantling. In this way, a reliable fixation and a long-lasting use of the protective cover 20 is achieved.

Further, in the present embodiment, the bottom of each first flange 22 is formed with a protruding bud 24, and the protruding bud 24 abuts on the surface of the contactor housing 10, as shown in fig. 8 and 9. Adopt this protruding bud 24's structure, protruding bud 24 butt can effectively restrict the deformation scope of first flange 22 on contactor housing 10's the surface during assembly, prevent that first flange 22 excessively deforms and cause not hard up, also fine restriction the upper and lower displacement of protection casing 20 for the assembly is more stable.

More specifically, the outer surface of the convex bud 24 is an arc-shaped surface, and when the assembly is performed, the arc-shaped surface can realize smooth transition, so that the assembly process is smoother.

Of course, in other embodiments, the structure of the bract 24 is not limited to this, for example, the bract 24 may also be a trapezoid structure with a small surface and a large bottom surface. Or a structure in which the bud 24 is not required.

Further, in this embodiment, the protective cover 20 is further formed with an elastic latch 25 extending into the cavity 201, the contactor housing 10 is further provided with a latch 12, and the elastic latch 25 is snap-fitted into the latch 12 of the contactor housing 10, as shown in fig. 10. Through the joint cooperation of elastic latch 25 and draw-in groove 12, can further fixed protection casing 20, specifically, be the further restriction protection casing 20 in the direction of sliding in the front and back for protection casing 20 assembles more stably. During disassembly, the force applied from the outside needs to overcome the friction force between the second flange 111 and the sliding groove 23 and the clamping force between the elastic latch 25 and the clamping groove 12 to drive the protective cover 20 to separate, i.e., the elastic latch 25 is separated from the clamping groove 12 by elastic deformation under the action of external force.

More specifically, the elastic lock 25 is integrally extended from the rear end sidewall 212, so that the structure is simple. More specifically, as shown in fig. 10, the elastic latch 25 has an elastic deformation portion 251 connected to the rear end side wall and a clamping head 252 connected to the outer end of the elastic deformation portion 251, and the elastic deformation portion 251 of the elastic latch 25 corresponds to the partition notch 202. Thus, the structure of the partition notch 202 also solves the problem of injection molding and core pulling of the mold of the elastic lock catch 25.

Of course, in other embodiments, the implementation structure of the elastic latch 25 is not limited to this, and may also be integrally extended from other positions of the protection cover 20, such as integrally extending from the top wall of the cavity 201 downward, and the elastic latch 25 connects the top wall of the cavity 201 and the rear end side wall 212 at the same time; or the rear end side wall 212 is further bent and extended inward, so that the rear side wall of the protection cover 20 is recessed inward to form an accommodating space, the elastic latch 25 is extended outward from the rear end side wall 212 to the accommodating space, and the like; alternatively, when the interference fit between the second flange 111 and the sliding groove 23 is sufficient to fix the protection cover 20, the elastic lock 25 and the slot 12 may not be required to be engaged with each other.

Further, in this embodiment, an accommodating opening 101 for accommodating the moving member is formed in the contactor housing 10, and the plurality of bosses 11 are disposed at front and rear ends of the accommodating opening 101. Specifically, one end of the accommodating opening 101 protrudes with a boss 11, the other end protrudes with two bosses 11 arranged side by side, and the middle position of the two bosses 11 is recessed with the slot 12. So set up, can realize the fixed mounting to protective cover 20 at the front and back end of moving part, leakproofness and fastness are all better.

More specifically, the front and rear end positions of the left side wall 213 and the right side wall 214 of the cavity 201 are inwardly protruded by the first flange 22 to be engaged with the bosses 11 at the front and rear ends of the receiving opening 201, respectively. That is, the first flange 22 on the same sidewall is provided with two segments, which can effectively save material cost, and the elastic deformation capability of the independent two segments of the first flange 22 will not be affected each other.

Of course, in other embodiments, the arrangement position of the boss 11 and the first flange 22 is not limited to this; alternatively, the left side wall 213 and the right side wall 214 of the cavity 201 may be extended entirely to form the first flange 22.

Further, in this embodiment, the surface of the contactor housing 10 has a convex mating platform 102, and the boss 11 is located on the mating platform 102; the protective cover 20 covers the mating platform 102, and the rear end sidewall 212 further extends downward to abut against a lateral step surface of the mating platform 102; thus, the dustproof effect can be better achieved. Of course, in other embodiments, the entire lower surface of the shield 20 may also bear directly against the surface of the mating platform 102, but the dust-proof effect may be less than optimal.

Further, in this embodiment, the protection cover 20 is a transparent protection cover made of polycarbonate, that is, a PC material. The traditional protective cover is generally made of nylon (PA) elastic material and has weak transparency. And this scheme adopts the PC material, has increased the transparency of protection casing, can make things convenient for the position of the more audio-visual confirmation moving part of operating personnel. Meanwhile, in the scheme, the middle slide 23 and the rear end side wall 212 are arranged in a clearance, and a separation notch 202 is formed between the middle slide 23 and the rear end side wall 212 to eliminate the deformation limitation of an external structure to the first flange 22, so that the defect that the elastic deformation of the PC material is insufficient can be well overcome, and the interference tight fit between the first flange 22 made of the PC material and the boss 11 can be met through the elastic deformation. Of course, in other embodiments, the material of the protection cover 20 is not limited thereto, and other materials may be used instead, for example, other transparent materials with equivalent or better performance may also be used instead.

The embodiment also provides a contactor, which adopts the protection structure of the contactor, as shown in fig. 1.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A protective structure for a contactor, characterized in that it comprises a protective cover for covering the movable parts on the contactor housing, the bottom surface of the protective cover is formed with a cavity, and the cavity has a front opening, The rear end side wall opposite to the front end opening, the left side wall and the right side wall opposite to the left side wall, the left side wall and the right side wall are arranged in a gap with the rear end side wall to form a partition gap, and all the Both the left side wall and the right side wall protrude inwardly with a first flange to form a chute, a boss is protruded on the contactor housing, and the top of the outer end of the boss also extends outward with a second flange. a flange; the boss is inserted into the cavity through the front opening of the cavity of the protective cover, and the second flange is snapped into the chute to form an interference fit.

2 . The protective structure of the contactor according to claim 1 , wherein the bottom of the first flange is protruded to form a convex bud, and the convex bud is abutted on the surface of the contactor housing. 3 .

3 . The protective structure of the contactor according to claim 2 , wherein the outer surface of the convex bud is an arc-shaped surface. 4 .

4 . The protective structure of the contactor according to claim 1 , wherein the protective cover is further formed with an elastic lock extending into the cavity, and the contactor housing is further provided with a slot, so that the The elastic locking buckle is snap-fitted in the snap groove of the contactor housing.

5 . The protective structure of the contactor according to claim 4 , wherein the elastic lock is integrally formed by extending the rear end side wall, and has an elastic deformation part connected to the rear end side wall and an outer part connected to the elastic deformation part. 6 . The elastic deformation part of the elastic locking buckle corresponds to the blocking notch.

6 . The protective structure for a contactor according to claim 1 , wherein the contactor housing is provided with an accommodating opening for accommodating the movable member, and the boss is provided with a plurality of and distributed in the front and rear of the accommodating opening. 7 . both ends.

7 . The protective structure for a contactor according to claim 6 , wherein the front and rear ends of the left side wall and the right side wall of the cavity protrude inwardly from the first flanges so as to be respectively compatible with the accommodating elements. The bosses at the front and rear ends of the opening are matched.

8 . The protective structure of the contactor according to claim 1 , wherein: the surface of the contactor housing has a convex mating platform, the boss is located on the mating platform; the protective cover on the matching platform, and the rear end side wall also extends downward to abut against the lateral step surface of the matching platform.

9 . The protective structure of the contactor according to claim 1 , wherein the protective cover is a transparent protective cover, and the material is polycarbonate material. 10 .

10. A contactor, characterized in that: it at least comprises the protective structure of the contactor according to any one of claims 1 to 9.