CN210091994U

CN210091994U - Dustproof contactor

Info

Publication number: CN210091994U
Application number: CN201920913670.0U
Authority: CN
Inventors: 郑彬; 赵青青
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-02-18
Anticipated expiration: 2029-06-18

Abstract

A dust-proof contactor. The contactor mainly solves the problem that dust easily enters a peripheral wall of a base of an existing contactor, and various through holes are formed in the peripheral wall of the base of the existing contactor mostly. The method is characterized in that: the shell comprises a base (4), wherein the static touch iron is provided with an attraction surface (31) which is used for contacting with the movable touch iron, the attraction surface is arranged in the base, the base comprises a coaming (41), and the coaming is a whole plate when being unfolded. The utility model provides a dustproof contactor, its base include the bounding wall, and this bounding wall is the complete board of a monoblock, does not have the through-hole, and the dust is difficult for getting into.

Description

Dustproof contactor

Technical Field

The utility model belongs to the contactor field, in particular to dustproof contactor.

Background

The contactor is a widely used switching apparatus, and is mainly used for frequently connecting or disconnecting an alternating current main circuit and a large-capacity control circuit. The contactors are classified into ac contactors and dc contactors according to the kind of controlled current. Common ac contactors are classified into electromagnetic contactors and vacuum contactors. The electromagnetic AC contactor is mainly composed of an electromagnetic system and a contact system, and the movable and static contacts are driven to be closed by the attraction of movable and static iron cores in the electromagnetic system under the action of electromagnetic force.

However, the circumferential wall of the base of the contactor is mostly provided with various through holes, so that dust is easily introduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a dustproof contactor mainly solves and is equipped with various through-holes on the circumference wall of present contactor base mostly, gets into the problem of dust like this easily.

The utility model adopts the technical proposal that:

the dustproof contactor comprises a shell, wherein static contact iron and movable contact iron are arranged in the shell, the shell comprises a base, an attraction surface which is used for being in contact with the movable contact iron is arranged on the static contact iron, the attraction surface is arranged in the base, the base comprises a surrounding plate, and the surrounding plate is an integral plate when being unfolded.

The coaming is made of metal.

The coaming is of a tubular structure with a rectangular cross section.

The base comprises a bottom plate, at least three elastic clamping plates are arranged on the bottom plate, and the clamping plates are in press fit with the inner wall of the enclosing plate.

The three clamping plates are buckled on three different inner walls of the coaming.

The base further comprises a middle plate made of an insulating material, the base is connected with the middle plate through a first fastening screw, and the bottom of the middle plate is pressed against the surrounding plate.

The bottom of the middle plate is provided with a pressing plate which is pressed against the coaming.

The middle plate bottom is equipped with the screw hole, the bottom plate pass through second fastening screw with the screw hole is connected, second fastening screw includes the nut, the nut is located the up end of middle plate, be equipped with the baffle on the middle plate relatively the nut still includes the upper cover, be equipped with wiring screw in the upper cover, the baffle is located the nut with between the wiring screw.

The bottom plate is provided with a plurality of heat dissipation holes.

The base is internally provided with a base used for installing a static iron core, the bottom of the base is provided with a boss, and the bottom plate is provided with a clamping hole matched with the boss in a clamping manner.

The utility model has the advantages that: the utility model provides a dustproof contactor, its base include the bounding wall, and this bounding wall is the complete board of a monoblock, does not have the through-hole, and the dust is difficult for getting into.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

Fig. 3 is a schematic diagram of a partial explosion according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of a bottom plate according to an embodiment of the present invention.

Fig. 5 is a perspective view of a middle plate according to an embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view of an embodiment of the present invention.

Fig. 7 is an enlarged schematic view of a portion a of fig. 6.

Fig. 8 is a schematic cross-sectional view of an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, the dustproof contactor comprises a shell 1, wherein a static contact iron 2 and a movable contact iron 3 are arranged in the shell, the shell comprises a base 4, an attraction surface 31 used for being in contact with the movable contact iron is arranged on the static contact iron, the attraction surface is arranged in the base, the base comprises a coaming 41, and the coaming is a whole plate when being unfolded. The utility model provides a dustproof contactor, its base include the bounding wall, and this bounding wall is the complete board of a monoblock, does not have the through-hole, and the dust is difficult for getting into. The apron is a whole plate when being unfolded, which means that the apron is not provided with a through hole to prevent dust from entering, and the apron can be formed by splicing a plurality of plates or can be integrally formed.

As one of the alternatives, the base can comprise a coaming, a coaming and a middle plate, and the suction surface is arranged in the base, so that dust is not easy to enter, and the service life is prolonged.

In this embodiment, the shroud is made of metal, as shown. Can be made of iron, copper and other metals, and enhances the heat dissipation effect.

In this embodiment, the shroud is a tubular structure having a rectangular cross-section, as shown. Can also be a cylindrical surface.

In this embodiment, as shown in the figure, the base includes a bottom plate 42, and at least three elastic clamping plates 421 are disposed on the bottom plate, and are in press fit with the inner wall of the enclosing plate.

In this embodiment, three of the clips snap against three different inner walls of the shroud, as shown. Carry on spacingly in order to carry on the bounding wall through the cardboard, prevent to rock, the installation is firm.

In this embodiment, as shown in the figure, the base further includes a middle plate 5 made of an insulating material, the bottom plate is connected to the middle plate through a first fastening screw 91, and the bottom of the middle plate abuts against the surrounding plate. The bottom plate is connected with the middle plate through a first fastening screw, and then the middle plate is pressed on the coaming to realize pressing.

In this embodiment, as shown in the figure, a pressing plate 51 is disposed at the bottom of the middle plate, and the pressing plate abuts against the surrounding plate. The pressing plate can be connected with the middle plate in a clamping mode and the like, and can also be connected in an adhesion mode and the like.

In this embodiment, as shown in the figure, the bottom of the middle plate is provided with a screw hole 12, the bottom plate is connected to the screw hole through a second fastening screw 92, the second fastening screw includes a nut 921, the nut is provided on the upper end face of the middle plate, the middle plate is provided with a baffle 13 opposite to the nut, and further includes an upper cover 6, a wiring screw 93 is provided in the upper cover, and the baffle is provided between the nut and the wiring screw. The screw can not penetrate through the middle plate, the middle plate is penetrated through to be installed more stably, a baffle is arranged to prevent the screw from contacting with a charged wiring screw, and the use is safer.

In this embodiment, as shown in the figure, a plurality of heat dissipation holes 422 are formed on the bottom plate. The radiating effect is improved, the bottom plate comprises a first plate and a second plate, the first plate is used for being in contact with the ground, the second plate is higher than the first plate, the radiating holes are formed in the second plate, and a radiating through groove is formed between the bottom of the second plate and the ground. The heat dissipation effect is increased.

In this embodiment, as shown in the figure, be equipped with the base 45 that is used for installing quiet iron core in the base, the base bottom is equipped with boss 451, be equipped with on the bottom plate with boss joint complex joint hole 423.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a dustproof contactor, includes casing (1), be equipped with static contact iron (2) and movable contact iron (3) in the casing, its characterized in that: the shell comprises a base (4), wherein the static touch iron is provided with an attraction surface (31) which is used for contacting with the movable touch iron, the attraction surface is arranged in the base, the base comprises a coaming (41), and the coaming is a whole plate when being unfolded.

2. The dust contactor as claimed in claim 1, wherein: the coaming is made of metal.

3. A dust contactor according to claim 1 or 2, wherein: the coaming is of a tubular structure with a rectangular cross section.

4. A dust contactor according to claim 3, wherein: the base comprises a bottom plate (42), at least three elastic clamping plates (421) are arranged on the bottom plate, and the clamping plates are in abutting fit with the inner wall of the enclosing plate.

5. The dust contactor as claimed in claim 4, wherein: the three clamping plates are buckled on three different inner walls of the coaming.

6. The dust contactor as claimed in claim 4, wherein: the base further comprises a middle plate (5) made of an insulating material, the base is connected with the middle plate through a first fastening screw (91), and the bottom of the middle plate abuts against the surrounding plate.

7. The dust contactor as claimed in claim 6, wherein: and a pressing plate (51) is arranged at the bottom of the middle plate and is abutted against the coaming.

8. The dust contactor as claimed in claim 7, wherein: the middle plate bottom is equipped with screw hole (12), the bottom plate pass through second fastening screw (92) with the screw hole is connected, second fastening screw includes nut (921), the nut is located the up end of middle plate, it is relative on the middle plate the nut is equipped with baffle (13), still includes upper cover (6), be equipped with wiring screw (93) in the upper cover, the baffle is located the nut with between the wiring screw.

9. The dust contactor as claimed in claim 8, wherein: a plurality of heat dissipation holes (422) are formed in the bottom plate.

10. A dust contactor according to claim 9, wherein: be equipped with base (45) that are used for installing quiet iron core in the base, the base bottom is equipped with boss (451), be equipped with on the bottom plate with boss joint complex joint hole (423).