CN219457443U

CN219457443U - Vacuum circuit breaker

Info

Publication number: CN219457443U
Application number: CN202320249128.6U
Authority: CN
Inventors: 张实丹; 陈志鹏; 马骏
Original assignee: Wuxi Weitongli Electrical Co ltd
Current assignee: Wuxi Weitongli Electrical Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-08-01
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a vacuum circuit breaker, which comprises a substrate, wherein the top end of the substrate is respectively provided with a mounting hole and a clamping groove, the top end of the substrate is fixedly connected with the vacuum circuit breaker, one side of the vacuum circuit breaker is fixedly connected with an external connecting plate, one side of the external connecting plate is provided with a plurality of wire holes, the wire holes are connected with an external connecting wire through a connecting piece, the inner walls of the clamping grooves are respectively clamped with a protective cover and the connecting plate, the protective cover is clamped with the connecting plate, the connecting piece comprises a sealing ring which is attached to the inner walls of the wire holes, and the inner walls of the sealing rings are fixedly connected with a limiting box.

Description

Vacuum circuit breaker

Technical Field

The utility model relates to the technical field of vacuum circuit breakers, in particular to a vacuum circuit breaker.

Background

The vacuum circuit breaker is a switching device capable of closing, carrying and opening a current under normal circuit conditions and capable of closing, carrying and opening a current under abnormal circuit conditions for a prescribed time. The vacuum circuit breaker can be used for distributing electric energy, starting the asynchronous motor infrequently, protecting a power line, the motor and the like, and automatically cutting off the circuit when serious overload or short circuit, undervoltage and other faults occur, and the functions of the vacuum circuit breaker are equivalent to the combination of a fuse type switch, an over-under-heating relay and the like. The vacuum circuit breaker comprises an outer shell, an overload prevention unit and a circuit breaking unit, wherein a center column is rotationally connected to the left side center of the outer shell, the circuit breaking unit comprises a fixed column, a fixed contact, a rotating plate and a rotating following arc plate, the right end of the fixed column is inserted into the right end of the outer shell, the fixed contact is fixedly connected to the left end of the fixed column, the rear end of the rotating plate is fixedly connected to the side surface of the center column, the front end of the rotating plate is fixedly connected to the middle of the inner side of the rotating following arc plate, an anti-low pressure hole is formed in the upper portion of the rotating following arc plate, an overload prevention hole is formed in the lower portion of the rotating following arc plate, the rotating contact is fixedly connected to the right end of the rotating following arc plate, and the rotating contact is in contact connection with the fixed contact;

the current device has the following problems;

1. the existing vacuum circuit breaker is poor in connection effect with external wires and low in connection speed.

2. The existing vacuum circuit breaker lacks an effective dustproof effect in the using process, so that a vacuum circuit breaker is designed.

Disclosure of Invention

The technical problem to be solved by the utility model is that; the existing vacuum circuit breaker is poor in connection effect with external wires, low in connection speed and short of effective dustproof effect in the using process.

In order to solve the technical problems, the utility model adopts a technical scheme that: the vacuum circuit breaker comprises a substrate, wherein a mounting hole and a clamping groove are respectively formed in the top end of the substrate, the vacuum circuit breaker is fixedly connected to the top end of the substrate, an external connecting plate is fixedly connected to one side of the vacuum circuit breaker, a plurality of wire holes are formed in one side of the external connecting plate, the wire holes are connected with an external connecting wire through connecting pieces, a protective cover and a connecting plate are respectively clamped on the inner wall of the clamping groove, and the protective cover is clamped with the connecting plate;

the connecting piece includes the sealing washer of laminating with the line hole inner wall, sealing washer inner wall fixedly connected with limit case, limit case inner wall passes through spring fixedly connected with slider, slider one end runs through limit case and laminates mutually with the line hole inner core, limit case one side rotates and is connected with the body, body bottom fixedly connected with wire winding piece, the aperture body has been seted up to body middle part one side, body inner wall fixedly connected with sloping piece.

The utility model is further characterized in that the cross section of the substrate is rectangular, the wall thickness of the substrate is not less than three millimeters, and the substrate is bonded with the vacuum circuit breaker.

Through the technical scheme, the setting of base plate is convenient for better carry out spacing to vacuum circuit breaker.

The utility model is further characterized in that the cross section of the mounting holes is circular, the number of the mounting holes is four, and the four mounting holes are positioned at the four corners of the substrate.

Through above-mentioned technical scheme, the setting of mounting hole is convenient for better spacing the base plate.

The utility model is further arranged that the section of the clamping groove is rectangular, the groove depth of the clamping groove is not less than three millimeters, and the clamping groove is positioned at the edge of the substrate.

Through the technical scheme, the setting of draw-in groove is convenient for better carry out spacingly to the protection casing, and the better of being convenient for protects vacuum circuit breaker.

The utility model further provides that the section of the protective cover is rectangular, and the wall thickness of the protective cover is not less than one millimeter.

Through the technical scheme, the setting of protection casing is convenient for better carry out spacingly to vacuum circuit breaker, and the better of being convenient for is dustproof and waterproof to vacuum circuit breaker.

The utility model is further arranged that the sliding block is electrically connected with the pipe body, the section of the pipe body is circular, and the wall thickness of the pipe body is not lower than five millimeters.

Through above-mentioned technical scheme, the setting of body is convenient for better carry out spacingly to external sinle silk.

The utility model is further characterized in that the inner wall of the sealing ring is bonded with the outer wall of the limit box, the limit box is in sliding connection with the sliding block, and two ends of the spring are bonded with the limit box and the sliding block respectively.

Through above-mentioned technical scheme, the setting of slider is convenient for better carries out electric connection with external component and vacuum circuit breaker.

The utility model further provides that the slope block is welded with the inner wall of the pipe body, and the slope block is made of copper.

Through above-mentioned technical scheme, the setting of slope piece is convenient for better spacing the line body.

The beneficial effects of the utility model are as follows:

1. the mounting holes are arranged so as to be convenient for better limiting the substrate, the clamping grooves are arranged so as to be convenient for better limiting the protective cover, the vacuum circuit breaker is convenient for better protecting the vacuum circuit breaker, and the substrate is arranged so as to be convenient for better limiting the vacuum circuit breaker;

2. the vacuum circuit breaker is convenient to limit by the arrangement of the protective cover, dust and water are convenient to prevent from happening to the vacuum circuit breaker, the external wire core is convenient to limit by the arrangement of the pipe body, the external component is convenient to be electrically connected with the vacuum circuit breaker by the arrangement of the sliding block, and the wire body is convenient to limit by the arrangement of the slope block.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a side view of the present utility model;

fig. 3 is a side view of the connector of the present utility model.

In the figure: 1. a substrate; 2. a mounting hole; 3. a clamping groove; 4. a vacuum circuit breaker; 5. externally connected with a connecting plate; 6. a wire hole; 7. a connecting piece; 8. a protective cover; 9. a connecting plate; 71. a tube body; 72. a hole body; 73. slope blocks; 74. a limit box; 75. a seal ring; 76. a spring; 77. a slide block; 78. and a winding block.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 and 2, a vacuum circuit breaker includes a substrate 1, a mounting hole 2 and a clamping groove 3 are respectively provided at the top end of the substrate 1, a vacuum circuit breaker 4 is fixedly connected at the top end of the substrate 1, an external connection plate 5 is fixedly connected at one side of the vacuum circuit breaker 4, a plurality of wire holes 6 are provided at one side of the external connection plate 5, the wire holes 6 are connected with an external connection wire through a connecting piece 7, a protection cover 8 and a connection plate 9 are respectively clamped at the inner wall of the clamping groove 3, the protection cover 8 and the connection plate 9 are clamped, the section of the substrate 1 is rectangular, the wall thickness of the substrate 1 is not less than three millimeters, the substrate 1 is bonded with the vacuum circuit breaker 4, and the arrangement of the substrate 1 is convenient for better limiting the vacuum circuit breaker 4. The section of the mounting holes 2 is circular, the number of the mounting holes 2 is four, and the four mounting holes 2 are positioned at four corners of the substrate 1. The arrangement of the mounting holes 2 facilitates a better spacing of the base plate 1. The section of the clamping groove 3 is rectangular, the groove depth of the clamping groove 3 is not less than three millimeters, and the clamping groove 3 is positioned at the edge of the substrate 1. The setting of draw-in groove 3 is convenient for better carry out spacing to protection casing 8, and the better is convenient for protect vacuum circuit breaker 4. The section of protection casing 8 is the rectangle, and the wall thickness of protection casing 8 is not less than one millimeter, and the setting of protection casing 8 is convenient for better spacing vacuum circuit breaker 4, is convenient for better dustproof and waterproof vacuum circuit breaker 4.

As shown in fig. 1-3, the connecting piece 7 comprises a sealing ring 75 attached to the inner wall of the wire hole 6, the inner wall of the sealing ring 75 is fixedly connected with a limit box 74, the inner wall of the limit box 74 is fixedly connected with a sliding block 77 through a spring 76, one end of the sliding block 77 penetrates through the limit box 74 and is attached to the inner core of the wire hole 6, one side of the limit box 74 is rotatably connected with a pipe body 71, the bottom of the pipe body 71 is fixedly connected with a winding block 78, one side of the middle of the pipe body 71 is provided with a hole body 72, and the inner wall of the pipe body 71 is fixedly connected with a slope block 73. The sliding block 77 is electrically connected with the pipe body 71, the section of the pipe body 71 is circular, and the wall thickness of the pipe body 71 is not lower than five millimeters. The setting of body 71 is convenient for better carry out spacing to external core, and sealing washer 75 inner wall bonds with spacing case 74 outer wall, spacing case 74 and slider 77 sliding connection, and spring 76 both ends bond with spacing case 74, slider 77 respectively. The provision of the slider 77 facilitates better electrical connection of the external components with the vacuum interrupter 4. The slope block 73 is welded to the inner wall of the pipe body 71, and the slope block 73 is made of copper. The provision of the ramp 73 facilitates better spacing of the wire body.

When the embodiment is used, the battery core of the external wire penetrates through the connecting plate 9 and the hole body 72 and is wound on the winding block 78, the limit box 74 is directly inserted into the wire hole 6 at the moment, the spring 76 drives the sliding block 77 to be attached to the battery core inside the wire hole 6, the external wire body can be connected with the vacuum circuit breaker 4 at the moment, and the protective cover 8 is clamped in the clamping groove 3.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. Vacuum circuit breaker, comprising a substrate (1), characterized in that: the vacuum circuit breaker comprises a substrate (1), wherein the top end of the substrate (1) is provided with a mounting hole (2) and a clamping groove (3) respectively, the top end of the substrate (1) is fixedly connected with a vacuum circuit breaker (4), one side of the vacuum circuit breaker (4) is fixedly connected with an external connecting plate (5), one side of the external connecting plate (5) is provided with a plurality of wire holes (6), the wire holes (6) are connected with an external connecting wire through connecting pieces (7), the inner wall of the clamping groove (3) is respectively clamped with a protective cover (8) and a connecting plate (9), and the protective cover (8) is clamped with the connecting plate (9);

connecting piece (7) include sealing washer (75) with line hole (6) inner wall laminating, sealing washer (75) inner wall fixedly connected with spacing case (74), spacing case (74) inner wall is through spring (76) fixedly connected with slider (77), spacing case (74) are run through to slider (77) one end and laminate mutually with line hole (6) inner core, spacing case (74) one side rotates and is connected with body (71), body (71) bottom fixedly connected with wire winding piece (78), hole body (72) have been seted up to body (71) middle part one side, body (71) inner wall fixedly connected with sloping piece (73).

2. A vacuum interrupter as defined in claim 1, wherein: the section of the substrate (1) is rectangular, the wall thickness of the substrate (1) is not less than three millimeters, and the substrate (1) is bonded with the vacuum circuit breaker (4).

3. A vacuum interrupter as defined in claim 1, wherein: the section of the mounting holes (2) is circular, the number of the mounting holes (2) is four, and the four mounting holes (2) are positioned at four corners of the substrate (1).

4. A vacuum interrupter as defined in claim 1, wherein: the section of the clamping groove (3) is rectangular, the groove depth of the clamping groove (3) is not less than three millimeters, and the clamping groove (3) is positioned at the edge of the substrate (1).

5. A vacuum interrupter as defined in claim 1, wherein: the section of the protective cover (8) is rectangular, and the wall thickness of the protective cover (8) is not less than one millimeter.

6. A vacuum interrupter as defined in claim 1, wherein: the sliding block (77) is electrically connected with the pipe body (71), the cross section of the pipe body (71) is circular, and the wall thickness of the pipe body (71) is not lower than five millimeters.

7. A vacuum interrupter as defined in claim 1, wherein: the inner wall of the sealing ring (75) is adhered to the outer wall of the limit box (74), the limit box (74) is in sliding connection with the sliding block (77), and two ends of the spring (76) are adhered to the limit box (74) and the sliding block (77) respectively.

8. A vacuum interrupter as defined in claim 1, wherein: the slope blocks (73) are welded with the inner wall of the pipe body (71), and the slope blocks (73) are made of copper.