CN218449159U

CN218449159U - Switch device of power distribution cabinet

Info

Publication number: CN218449159U
Application number: CN202222048009.2U
Authority: CN
Inventors: 张龙
Original assignee: Zhuhai Wharton Electric Co ltd
Current assignee: Zhuhai Wharton Electric Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-02-03
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a switching device of switch board, include: the support comprises a top plate, two side plates and at least one bottom plate, wherein the two side plates are arranged at intervals, the top plate is connected to the upper ends of the two side plates, and the bottom plate is connected to the lower ends of the two side plates; the vacuum bubble is connected to the top plate, and the lower end of the vacuum bubble is provided with a static contact; the isolating switch is rotatably arranged on the side plate and arranged below the vacuum bubble, and the isolating switch comprises a movable contact rod which is used for contacting a static contact. The vacuum bubbles and the isolating switches are intensively arranged on the bracket, so that the whole switch device can integrally move, the switch device is convenient to be arranged in a power distribution cabinet at one time, and the switch device is simpler and more convenient to install; in addition, the static contact is arranged at the lower end of the vacuum bubble, so that the stroke required by the movable contact rod to contact the static contact can be reduced, and the switching-on is quicker.

Description

Switch device of power distribution cabinet

Technical Field

The utility model relates to a switch board technical field, in particular to switching device of switch board.

Background

The power distribution cabinet is a common power device, a switch device is arranged in the power distribution cabinet, the switch device comprises a vacuum bulb and an isolating switch, the vacuum bulb is a vacuum arc-extinguishing switch and comprises an insulating pull rod and a fixed contact, the fixed contact is used for being externally connected with a movable contact, and the insulating pull rod is a part for realizing the power-on and power-off of the vacuum bulb.

In the past, the vacuum bubble and the isolating switch are separately installed in the power distribution cabinet, and the cabinet body of the power distribution cabinet is large and difficult to move and difficult to install.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a switching device of switch board can concentrate vacuum bubble and isolator and install on same support, forms a switching device's whole, and the convenience is with switching device integral erection in the switch board the inside like this.

According to the utility model discloses a switching device of switch board of first aspect embodiment, include: the support comprises a top plate, two side plates and at least one bottom plate, wherein the two side plates are arranged at intervals, the top plate is connected to the upper ends of the two side plates, and the bottom plate is connected to the lower ends of the two side plates; the vacuum bubble is connected to the top plate, and a static contact is arranged at the lower end of the vacuum bubble; the isolating switch is rotatably arranged on the side plate and arranged below the vacuum bubble, and the isolating switch comprises a movable contact rod which is used for contacting the static contact.

According to the utility model discloses switching device of switch board has following beneficial effect at least: the vacuum bubbles and the isolating switches are installed on the bracket in a centralized manner, so that the whole switch device can move integrally, the switch device is convenient to install in a power distribution cabinet at one time, and the switch device is simpler and more convenient to install; in addition, the static contact is arranged at the lower end of the vacuum bubble, so that the stroke required by the movable contact rod to contact the static contact can be reduced, and the switching-on is quicker; the support is composed of the top plate, the two side plates and the bottom plate, the structure is simple, and the vacuum bubble and the isolating switch are installed more conveniently.

According to the utility model discloses a some embodiments, be provided with the full skirt structure on the periphery wall of vacuum bubble, set up the full skirt structure increases creepage distance, avoids the electrician.

According to the utility model discloses a some embodiments still include the connection piece, the connection piece sets up on the bottom plate, move the contact lever one end articulates on the connection piece, the connection piece is used for connecting electrically conductive bar copper, connects stably, makes move the contact lever can swing on the connection piece, the action of convenient combined floodgate and separating brake is carried out.

According to the utility model discloses a some embodiments, move the contact lever and include two clamping pieces, two the clamping piece interval sets up, the static contact can insert two interval between the clamping piece sets up two the clamping piece holding the static contact when making the combined floodgate, the static contact with move the contact lever and connect more stably.

According to the utility model discloses a some embodiments, two the one end that the clamping piece is relative is provided with and is used for the contact the arch of static contact sets up the arch can with two faces of static contact produce extrusion contact, connect inseparabler, avoid the pine to take off or contact failure.

According to the utility model discloses a some embodiments, the static contact is close to the one end of moving contact pole is provided with the guide inclined plane, and is convenient move contact pole with the static contact contacts, the guide the static contact gets into move contact pole.

According to the utility model discloses a some embodiments, the static contact is kept away from the one end of moving the contact lever is provided with spacing post, avoids moving the contact lever and rotating the excess, reverse breaking away from the static contact avoids moving the contact lever with static contact area undersize causes contact point position voltage too big.

According to the utility model discloses a some embodiments, spacing post passes the static contact sets up, limiting displacement can all be played at the both ends of spacing post, makes the reaction force that moves the contact lever and receive is more balanced, guarantees move the contact lever with the static contact is steady.

According to the utility model discloses a some embodiments, the left end and the right-hand member of spacing post have all cup jointed the cushion collar, set up the cushion collar avoids closing a floodgate and leads to at the excessive speed move the contact lever will the static contact is crowded to lean on the deformation.

According to the utility model discloses a some embodiments, isolator still includes dwang, actuating lever and first connecting rod, the dwang rotates to be connected on the curb plate, the actuating lever is connected on the dwang, the one end of first connecting rod is articulated the actuating lever, the other end of first connecting rod is articulated move the middle part of contact pole, the other end of moving contact pole is used for contacting the static contact, simple structure, the action principle is clear succinct.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a switching device according to an embodiment of the present invention;

FIG. 2 is an exploded view of the switching device shown in FIG. 1;

FIG. 3 is a rear perspective view of the switch device shown in FIG. 1;

fig. 4 is a schematic structural view of the switchgear shown in fig. 1 mounted on a cabinet.

A bracket 100, a top plate 110, side plates 120, a bottom plate 130;

vacuum bubble 200, static contact 210, guide inclined plane 211, spacing column 212, buffer sleeve 213 and umbrella skirt structure 220;

the isolating switch 300, the movable contact rod 310, the clamping piece 311 and the bulge 311a;

a rotation lever 320, a driving lever 330, a first link 340;

a connecting piece 400 and a cabinet body 500.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 4, a switching apparatus of a power distribution cabinet includes: the support 100 comprises a top plate 110, two side plates 120 and at least one bottom plate 130, wherein the two side plates 120 are arranged at intervals, the top plate 110 is connected to the upper ends of the two side plates 120, and the bottom plate 130 is connected to the lower ends of the two side plates 120; the vacuum bubble 200 is connected to the top plate 110, and the lower end of the vacuum bubble 200 is provided with a static contact 210; the isolating switch 300 is rotatably disposed on the side plate 120, the isolating switch 300 is disposed below the vacuum bulb 200, and the isolating switch 300 includes a movable contact rod 310, and the movable contact rod 310 is used for contacting the stationary contact 210. The vacuum bubble 200 and the isolating switch 300 are installed on the bracket 100 in a centralized manner, so that the whole switch device can move integrally, the switch device is convenient to install in a power distribution cabinet at one time, and the switch device is simpler and more convenient to install; in addition, the static contact 210 is arranged at the lower end of the vacuum bubble 200, so that the stroke required by the movable contact rod 310 to contact the static contact 210 can be reduced, and the switching-on is quicker; the bracket 100 is composed of the top plate 110, the two side plates 120 and the bottom plate 130, the structure is simple, and the vacuum bulb 200 and the isolating switch 300 are more convenient to install. It is noted that the switching device is integrally installed in the cabinet 500; the top plate 110 is provided with a driving device, the driving device is used for driving an insulating pull rod on the vacuum bulb 200 to stretch, the insulating pull rod is actually a switch part on the vacuum bulb 200, when the insulating pull rod is pulled open, the vacuum bulb 200 is powered off, when the insulating pull rod is pushed in, the vacuum bulb 200 is powered on, the structure is the conventional structure of the vacuum bulb 200, and the vacuum bulb 200 can also be called a vacuum arc-extinguishing switch; the driving device can be a cylinder, a hydraulic cylinder or a motor, and the insulating pull rod is stretched or pushed through a simple connecting rod mechanism, a crank rocker mechanism, a crank slider mechanism and the like.

In some embodiments, the outer peripheral wall of the vacuum vessel 200 is provided with a shed structure 220, and the shed structure 220 is provided to increase creepage distance and avoid a person.

In some embodiments, the connecting plate 400 is further included, the connecting plate 400 is disposed on the base plate 130, one end of the movable contact rod 310 is hinged to the connecting plate 400, the connecting plate 400 is used for connecting a conductive copper rod, and the connection is stable, so that the movable contact rod 310 can swing on the connecting plate 400, and the closing and opening actions are conveniently performed.

In some embodiments, the movable contact rod 310 includes two clamping pieces 311, the two clamping pieces 311 are spaced apart from each other, the stationary contact 210 can be inserted into the space between the two clamping pieces 311, and the two clamping pieces 311 are configured to accommodate the stationary contact 210, so that the stationary contact 210 and the movable contact rod 310 are connected more stably when the switch is closed.

In some embodiments, the opposite ends of the two clamping pieces 311 are provided with protrusions 311a for contacting the stationary contact 210, and the protrusions 311a can make pressing contact with two plate surfaces of the stationary contact 210, so that the connection is tighter, and loosening or poor contact is avoided.

In some embodiments, the stationary contact 210 is provided with a guiding inclined surface 211 near one end of the movable contact rod 310, so as to facilitate the movable contact rod 310 to contact with the stationary contact 210, and guide the stationary contact 210 into the movable contact rod 310.

In some embodiments, the end of the stationary contact 210 far from the moving contact rod 310 is provided with the limiting post 212, so as to prevent the moving contact rod 310 from rotating excessively and reversely separating from the stationary contact 210, and prevent the electric spark generated by an excessively large voltage at the contact point due to an excessively small contact area between the moving contact rod 310 and the stationary contact 210.

In some embodiments, the limiting column 212 penetrates through the stationary contact 210, and both ends of the limiting column 212 can perform a limiting function, so that the reaction force applied to the movable contact rod 310 is more balanced, and the movable contact rod 310 and the stationary contact 210 are ensured to be in stable contact.

In some embodiments, the left end and the right end of the limiting column 212 are sleeved with the buffer sleeves 213, and the buffer sleeves 213 are arranged to prevent the moving contact rod 310 from extruding and deforming the static contact 210 due to too fast switching.

In some embodiments, the isolating switch 300 further includes a rotating rod 320, a driving rod 330 and a first connecting rod 340, the rotating rod 320 is rotatably connected to the side plate 120, the driving rod 330 is connected to the rotating rod 320, one end of the first connecting rod 340 is hinged to the driving rod 330, the other end of the first connecting rod 340 is hinged to the middle of the movable contact rod 310, and the other end of the movable contact rod 310 is used for contacting the stationary contact 210, which is simple in structure and clear and concise in operation principle.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A switchgear of a switchgear cabinet, characterized in that it comprises:

the support comprises a top plate, two side plates and at least one bottom plate, wherein the two side plates are arranged at intervals, the top plate is connected to the upper ends of the two side plates, and the bottom plate is connected to the lower ends of the two side plates;

the vacuum bubble is connected to the top plate, and a static contact is arranged at the lower end of the vacuum bubble;

the isolating switch is rotatably arranged on the side plate and arranged below the vacuum bubble, and the isolating switch comprises a movable contact rod which is used for contacting the static contact.

2. The switchgear of claim 1, wherein: and an umbrella skirt structure is arranged on the peripheral wall of the vacuum bubble.

3. The switchgear of claim 1, wherein: the connecting plate is arranged on the bottom plate, one end of the movable contact rod is hinged to the connecting plate, and the connecting plate is used for connecting the conductive copper rod.

4. A switchgear cabinet switching device according to claim 3, characterized in that: the movable contact rod comprises two clamping pieces, the two clamping pieces are arranged at intervals, and the static contact can be inserted into the interval between the two clamping pieces.

5. The switchgear device for electrical distribution cabinets of claim 4, wherein: and one end of each clamping piece opposite to the corresponding clamping piece is provided with a bulge for contacting the static contact.

6. The switchgear device for electrical distribution cabinets of claim 4, wherein: and one end of the static contact close to the movable contact rod is provided with a guide inclined plane.

7. The switchgear of claim 6, wherein: and one end of the static contact, which is far away from the movable contact rod, is provided with a limiting column.

8. The switchgear of claim 7, wherein: the limiting column penetrates through the fixed contact.

9. The switchgear of claim 8, wherein: and the left end and the right end of the limiting column are sleeved with buffer sleeves.

10. The switchgear of claim 4 to 9, wherein: the isolating switch further comprises a rotating rod, a driving rod and a first connecting rod, the rotating rod is rotatably connected to the side plate, the driving rod is connected to the rotating rod, one end of the first connecting rod is hinged to the driving rod, the other end of the first connecting rod is hinged to the middle of the movable contact rod, and the other end of the movable contact rod is used for contacting the static contact.