CN215988566U - Isolating switch device - Google Patents

Abstract

The utility model discloses an isolating switch device which comprises a contact module, wherein the contact module is provided with a shell, a moving contact and a fixed contact, the fixed contact is fixedly arranged on the shell, the moving contact is rotatably arranged on the shell and can be combined with or separated from the fixed contact, the shell is provided with a plurality of magnets, and the magnets are respectively arranged on two sides of a rotating sector of the moving contact. The magnets are arranged on the shell and arranged on two sides of the rotating sector of the moving contact, a larger magnetic field can be formed to elongate the electric arc, and the arc extinguishing effect is better.

Description

Isolating switch device

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to an isolating switch device.

Background

The photovoltaic inverter is generally required to be provided with a rotary isolating switch, and the rotary isolating switch comprises a contact pole and a mechanism pole, wherein the contact pole is provided with a plurality of contact modules, each contact module comprises a shell, a moving contact, a static contact and the like, the moving contact and the static contact are correspondingly connected to a wiring terminal, and the mechanism pole is combined with or separated from the static contact by driving the moving contact to rotate, so that the switching-on and switching-off of a circuit system are realized. The existing product arranges a magnet on a rotating frame of a moving contact for arc extinction, and the arc extinction effect is not ideal because the magnet is arranged on one side, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model aims to provide a disconnecting switch device with improved arc extinguishing effect.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

the utility model provides an isolator device, includes the contact module, and the contact module has casing, moving contact and static contact, and static contact fixed mounting is in the casing, and the moving contact is rotationally installed in the casing and the moving contact can combine or separate with the static contact, and the polylith magnet is installed to the casing, and the magnet has been arranged respectively to the both sides of the rotation sector of moving contact.

Furthermore, the contact module is a single layer, and magnets are respectively arranged on the upper side and the lower side of the seat plate of the shell of the single-layer contact module, so that the magnets are respectively arranged on two sides of the rotating sector of the moving contact of the single-layer contact module.

Further, the magnets on the upper side and the lower side of the single-layer contact module housing base plate are self-closing mounted.

Furthermore, the contact modules are in a plurality of layers, and magnets are respectively arranged on the upper side and/or the lower side of the seat plate of the shell of each layer of contact module, so that the magnets are respectively arranged on two sides of the rotating sector of the moving contact of each layer of contact module.

Furthermore, in a cavity enclosed by contact module shells of adjacent layers, magnets are respectively arranged on two sides of the corresponding moving contact rotating sector.

Further, the magnets corresponding to the contact modules of each layer are arranged in longitudinal alignment.

Further, the shell is provided with a magnet at most of the area of the outer side near the moving track line of the movable contact.

Furthermore, the housing is provided with a magnet mounting groove for embedding the magnet.

Further, the magnet is installed in the magnet installation groove in a tight fit mode or a hot riveting mode.

Further, the magnet is provided with an insulating coating.

Compared with the prior art, in the isolating switch device, the magnets are arranged on the shell and are arranged on two sides of the rotating sector of the moving contact, and the magnets can form a larger magnetic field to elongate the electric arc, so that the arc extinguishing effect can be improved.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of a disconnector arrangement according to the utility model;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a bottom view of FIG. 1;

FIG. 6 is an exploded view of FIG. 1;

FIG. 7 is a schematic view of the housing of FIG. 1;

FIG. 8 is a schematic diagram of a second embodiment of the disconnecting switch device according to the utility model;

FIG. 9 is a schematic view of the housing of FIG. 8 with the layers removed;

fig. 10 is an exploded view of fig. 8.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but it should not be construed that the scope of the present invention is limited to the embodiments described below.

In the present invention, the contact module is provided with a plurality of magnets on the housing, which are distributed on the parallel planes on both sides of the rotating sector of the movable contact, so that the magnets can form a larger magnetic field to elongate the arc, thereby improving the arc extinguishing effect, as described further below.

Example one

Referring to fig. 1 to 7, the disconnecting switch device in the present embodiment has a single-layer contact module 1, which is composed of a housing 2, a moving contact 3, a static contact 4, and the like, wherein the static contact 4 is fixedly installed on the housing 2, and the moving contact 3 is rotatably installed on the housing 2 through a driving frame 6, so that the moving contact 3 can be combined with or separated from the static contact 4, thereby implementing switching on or switching off. In this embodiment, the housing 2 is equipped with a plurality of magnets 5, preferably permanent magnets (steel), these magnets 5 being an even number of pairs, symmetrically arranged on parallel planes on both sides of the rotation sector of the movable contact 3. Since the magnets 5 are arranged on both sides of the rotation sector of the moving contact 3, a larger magnetic field can be formed to elongate the arc, which helps to improve the arc extinguishing effect.

In this embodiment, the contact module 1 is a single layer, and the magnets 5 are respectively installed on the upper side and the lower side of the seat plate 21 of the housing 2, so that the magnets 5 are respectively arranged on both sides of the rotating sector of the moving contact 3 of the single-layer contact module 2. Preferably, these magnets 5 are arranged in the majority of the area outside the vicinity of the movement trajectory of the movable contact 3, so that the arc can be blown off more efficiently.

In this embodiment, the magnet 5 may be mounted in the following manner: the shell 2 is provided with a magnet mounting groove 22, the magnet 5 is embedded in the magnet mounting groove 22 and is tightly assembled or hot riveted in the magnet mounting groove 22, so that the magnet 5 is more firmly mounted; meanwhile, the paired magnets 5 arranged on the upper side and the lower side of the seat plate 21 can be attracted automatically, and the self-attraction installation mode has simple and efficient assembly process.

In this embodiment, the magnets 4 are located below the stationary contacts 4, and they are preferably coated with an insulating layer (not shown), which is advantageous in shielding the charged particles and protecting the magnets from high-temperature particles.

Example two

As shown in fig. 8 to 9, the disconnecting switch device in the present embodiment has a plurality of layers of contact modules 1, wherein the structures of the contact modules 1 in the respective layers are the same, which can be referred to the description of the first embodiment. In the isolating switch device, contact modules 1 of each layer are arranged in a stacked mode, namely, adjacent layers of shells 2 are clamped, and rotating frames 6 of adjacent layers of moving contacts 3 are in plug-in connection.

In this embodiment, the magnets 5 may be arranged in the contact modules 1 of each layer according to the first embodiment, that is: magnets 5 are respectively mounted on the upper and lower sides of the seat plate 21 of the housing 2 of each layer of contact modules 1, wherein the structure and the specific mounting manner of each magnet 5 are as described above.

Of course, when a plurality of layers of the contact modules 1 are stacked, the magnet 5 may be disposed only on the upper side or the lower side of each layer of the contact modules 1. In this case, for a certain layer of movable contacts 3, the two sides of the rotation sector thereof also have magnets 5 respectively, namely: one side is the magnet 5 in the contact module 1 of the present layer and the other side is the magnet 5 in the contact module 1 of the adjacent layer.

In both cases, the magnets 5 of the contact modules 1 of adjacent layers sandwich the movable contacts 3 of the corresponding layer, that is: in a cavity enclosed by the shells 2 of the adjacent contact modules 1, magnets 5 are respectively arranged on two sides of the rotating sector of the corresponding moving contact 3, so that the magnetic blowing effect of the contact arc area can be better realized.

In the embodiment, the moving contacts 3 of each layer are in the same direction and are longitudinally aligned in a closed state, so that the magnets 5 are conveniently mounted according to mutual influence of magnetic poles; accordingly, the magnets 5 of the contact arrangements of the various layers are aligned longitudinally, which results in a compact construction.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that the scope of the present invention is not limited to the embodiments described above, and that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides an isolator device, includes the contact module, and the contact module has casing, moving contact and static contact, and static contact fixed mounting is in the casing, and the moving contact is rotationally installed in the casing and the moving contact can combine or separate with the static contact, its characterized in that, and polylith magnet is installed to the casing, and the magnet has been arranged respectively to the both sides of the rotation sector of moving contact.

2. The disconnecting switch device according to claim 1, wherein the contact module is a single layer, and magnets are respectively installed on the upper side and the lower side of the seat plate of the housing of the single layer contact module, so that the magnets are respectively arranged on both sides of the rotating sector of the moving contact of the single layer contact module.

3. The disconnector device of claim 2, characterized in that the magnets on the upper and lower sides of the single-layer contact module housing base plate are mounted self-closing.

4. The disconnecting switch device according to claim 1, wherein the contact modules are stacked in multiple layers, and magnets are respectively installed on the upper side and/or the lower side of the seat plate of the housing of each layer of contact modules, so that the magnets are respectively arranged on both sides of the rotating sector of the movable contact of each layer of contact modules.

5. The disconnecting switch device according to claim 4, wherein magnets are disposed on both sides of the rotation sector of the corresponding moving contact in a cavity defined by the contact module housings of adjacent layers.

6. The disconnect switch device of claim 4, wherein the magnets corresponding to each layer of contact modules are arranged in longitudinal alignment.

7. The isolator switch assembly of claim 1, wherein the housing has magnets disposed in a substantial area of the housing outside of the vicinity of the movable contact movement path.

8. The disconnecting switch device according to claim 1, wherein the housing is formed with a magnet mounting groove to be fitted to the magnet.

9. The disconnecting switch device according to claim 8, wherein the magnet is tightly fitted or hot riveted in the magnet mounting groove.

10. A disconnector arrangement according to any one of claims 1-9, characterized in that the magnets are provided with an insulating coating.

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