CN220672464U

CN220672464U - Solid-sealed polar pole assembly and circuit breaker with same

Info

Publication number: CN220672464U
Application number: CN202322308542.2U
Authority: CN
Inventors: 张秀章; 舒国标; 侯银顺; 王礼君
Original assignee: Zhejiang Zhengtai Electric Technology Co ltd
Current assignee: Zhejiang Zhengtai Electric Technology Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-03-26
Anticipated expiration: 2033-08-25

Abstract

The utility model provides a solid-sealed pole assembly and a circuit breaker with the same. The solid sealed pole assembly includes: the fixed end of the solid-sealed pole comprises a shell and a vacuum arc-extinguishing chamber arranged in the shell, wherein the end part of the shell is provided with a mounting surface, and a fastening hole is formed in the mounting surface; the bracket component comprises a bracket and a fastener, wherein the bracket comprises a bracket body and a flanging structure arranged on the bracket body, the flanging structure is attached to at least part of the mounting surface, and the fastener is arranged in the flanging structure and the fastening hole in a penetrating manner so as to mount the bracket on the mounting surface. The utility model effectively solves the problems that the connection mode of the movable end of the solid-sealed pole and the bracket in the prior art is easy to cause deformation of the bracket and even fracture of the convex structure of the movable end of the solid-sealed pole, and the mechanical characteristic parameters and the service life of the solid-sealed circuit breaker are affected.

Description

Solid-sealed polar pole assembly and circuit breaker with same

Technical Field

The utility model relates to the technical field of power transmission and distribution equipment, in particular to a solid-sealed pole assembly and a circuit breaker with the same.

Background

At present, new energy power generation projects are greatly developed in China, wherein wind power and photovoltaic projects have higher requirements on the occupied area of a box-type transformer substation and the capacity of a transformer, and the application of the solid-sealed circuit breaker is wider. The solid-sealed pole is a core component of the medium-high voltage power switch, and has the main functions of rapidly extinguishing arcs and inhibiting current after the medium-high voltage power switch is powered off through excellent insulativity, so that accidents and accidents are avoided.

In the prior art, the movable end of a solid-sealed pole of a solid-sealed circuit breaker is provided with a plurality of protruding structures, and an installation space for installing a bracket is formed between two protruding structures which are oppositely arranged, and a fastener is penetrated on the bracket and the protruding structures so as to install at least part of the bracket in the installation space of the movable end of the solid-sealed pole.

However, the above connection mode of the movable end of the solid-sealed pole and the bracket causes inconsistent penetrating direction of the fastener and stress direction when the breaker is combined and separated, so that the transverse shearing force applied to the fastener is increased, the bracket is easy to deform, and even the protruding structure of the movable end of the solid-sealed pole is broken, thereby affecting the mechanical characteristic parameters and the service life of the solid-sealed breaker.

Disclosure of Invention

The utility model mainly aims to provide a solid-sealed pole assembly and a circuit breaker with the same, which are used for solving the problems that in the prior art, the connection mode of a movable end of a solid-sealed pole and a support is easy to cause deformation of the support and even cause breakage of a convex structure of the movable end of the solid-sealed pole, so that the mechanical characteristic parameters and the service life of the solid-sealed circuit breaker are influenced.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a solid sealed pole assembly comprising: the fixed end of the solid-sealed pole comprises a shell and a vacuum arc-extinguishing chamber arranged in the shell, wherein the end part of the shell is provided with a mounting surface, and a fastening hole is formed in the mounting surface; the bracket component comprises a bracket and a fastener, wherein the bracket comprises a bracket body and a flanging structure arranged on the bracket body, the flanging structure is attached to at least part of the mounting surface, and the fastener is arranged in the flanging structure and the fastening hole in a penetrating manner so as to mount the bracket on the mounting surface.

Further, the extending direction of the fastening hole coincides with the extending direction of the housing.

Further, the housing includes: the shell body is provided with a containing cavity and a first through hole which are communicated with each other, and one end of the vacuum arc-extinguishing chamber penetrates through the first through hole and then extends out of the containing cavity; the mounting plate is arranged at one end of the shell body, which is provided with a first through hole, the mounting plate is provided with a second through hole, a mounting surface and a fastening hole, the second through hole is communicated with the first through hole, and the fastening hole is positioned at the outer side of the second through hole and is arranged at intervals with the second through hole; wherein, the installation face is located the mounting panel and is kept away from the one side of casing body.

Further, the flanging structure is provided with a third through hole, the third through hole and the second through hole are oppositely arranged and are mutually communicated, and the fastening piece is positioned on the outer side of the third through hole and is arranged at intervals with the third through hole.

Further, the support body is platy and with around forming the installation space between the turn-ups structure, the support subassembly still includes: the transmission crank arm assembly is movably arranged on the bracket body; the elastic component is connected with the vacuum arc-extinguishing chamber through the transmission crank arm component; the conductive piece is connected with the vacuum arc-extinguishing chamber and is positioned between the elastic component and the vacuum arc-extinguishing chamber; wherein, transmission turning arm subassembly, elastic component and electrically conductive piece all are located the installation space.

Further, the bracket body and the flanging structure are of an integrated structure.

Further, the fastening hole is a threaded hole, the fastening piece is an inner hexagon bolt, and the bolt head of the inner hexagon bolt is located in the installation space and is limited to the flanging structure.

Further, the housing is made of an epoxy material.

Further, the fastening holes are multiple, and the multiple fastening holes are arranged at intervals around the circumference of the vacuum arc-extinguishing chamber.

According to another aspect of the present utility model, there is provided a circuit breaker including the above-described encapsulated pole assembly.

By applying the technical scheme of the utility model, the solid-sealed polar pole component comprises a solid-sealed polar pole movable end and a bracket component, wherein the solid-sealed polar pole movable end comprises a shell and a vacuum arc-extinguishing chamber arranged in the shell, the end part of the shell is provided with a mounting surface, and the mounting surface is provided with a fastening hole. The bracket component comprises a bracket and a fastener, the bracket comprises a bracket body and a flanging structure arranged on the bracket body, the flanging structure is attached to at least part of the mounting surface, and the fastener is arranged in the flanging structure and the fastening hole in a penetrating manner so as to mount the bracket on the mounting surface. Therefore, when the bracket component and the movable end of the solid-sealed pole are required to be assembled, the flanging structure is attached to the mounting surface, and then the fastener is arranged in the flanging structure and the fastening hole in a penetrating manner, so that the bracket component is mounted on the mounting surface of the movable end of the solid-sealed pole.

Compared with the prior art that the bracket is arranged in the installation space of the movable end of the solid-sealed pole, the protrusion structure of the movable end of the solid-sealed pole is canceled, the bracket component is fastened on the installation surface of the movable end of the solid-sealed pole through the mutual cooperation between the flanging structure and the installation surface, the contact area of the bracket component and the movable end of the solid-sealed pole is increased by the connection mode, the bracket component is prevented from being deformed, the problems that the bracket is easily deformed and even the protrusion structure of the movable end of the solid-sealed pole is broken, and the mechanical characteristic parameters and the service life of the solid-sealed circuit breaker are influenced are solved, and the service life and the mechanical characteristic parameters of the circuit breaker are prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of an encapsulated pole assembly according to the present utility model;

fig. 2 is a schematic perspective view showing a movable end of the fixed terminal assembly of fig. 1.

Wherein the above figures include the following reference numerals:

10. fixedly sealing the movable end of the pole; 11. a housing; 111. a mounting surface; 112. a fastening hole; 113. a housing body; 114. a mounting plate; 1141. a second through hole; 12. a vacuum arc extinguishing chamber; 13. a conductive rod; 20. a bracket assembly; 21. a bracket; 211. a bracket body; 212. a flanging structure; 2121. a third through hole; 22. a fastener; 23. a drive crank arm assembly; 24. an elastic component; 25. and a conductive member.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

In order to solve the problem that in the prior art, the connection mode of the movable end of the solid-sealed pole and the support is easy to cause deformation of the support and even cause breakage of a protruding structure of the movable end of the solid-sealed pole, and mechanical characteristic parameters and service life of the solid-sealed circuit breaker are affected, the application provides a solid-sealed pole assembly and the circuit breaker with the solid-sealed pole assembly.

As shown in fig. 1 and 2, the encapsulated pole assembly includes an encapsulated pole movable end 10 and a bracket assembly 20. The fixed terminal 10 includes a housing 11 and a vacuum interrupter 12 disposed in the housing 11, wherein an end of the housing 11 has a mounting surface 111, and the mounting surface 111 is provided with a fastening hole 112. The bracket assembly 20 includes a bracket 21 and a fastener 22, the bracket 21 includes a bracket body 211 and a flange structure 212 disposed on the bracket body 211, the flange structure 212 is disposed in contact with at least a portion of the mounting surface 111, and the fastener 22 is disposed in the flange structure 212 and the fastening hole 112 to mount the bracket 21 on the mounting surface 111.

By applying the technical scheme of the embodiment, when the bracket assembly 20 and the fixed terminal post moving end 10 need to be assembled, the flanging structure 212 is attached to the mounting surface 111, and then the fastener 22 is arranged in the flanging structure 212 and the fastening hole 112 in a penetrating manner, so that the bracket assembly 20 is mounted on the mounting surface 111 of the fixed terminal post moving end 10.

Compared with the prior art that the bracket is arranged in the installation space of the movable end of the solid-sealed pole, the convex structure of the movable end of the solid-sealed pole is canceled in the embodiment, the bracket component 20 is fastened on the installation surface 111 of the movable end 10 of the solid-sealed pole through the mutual cooperation between the flanging structure 212 and the installation surface 111, the contact area of the bracket component and the movable end of the solid-sealed pole is increased by the connection mode, the bracket component is prevented from being deformed, the problems that the bracket is easily deformed and even the convex structure of the movable end of the solid-sealed pole is broken due to the connection mode of the movable end of the solid-sealed pole and the bracket in the prior art, and the mechanical characteristic parameters and the service life of the solid-sealed circuit breaker are influenced are solved, and the service life and the mechanical characteristic parameters of the circuit breaker are prolonged.

In this embodiment, the mounting surface 111 is a plane.

In the present embodiment, the extending direction of the fastening hole 112 coincides with the extending direction of the housing 11. Alternatively, the fastener 22 is a screw or bolt. Like this, the extending direction of shell 11 is unanimous with the extending direction of vacuum interrupter 12, and above-mentioned setting makes the extending direction of screw or bolt unanimous with the extending direction of shell 11, and when the circuit breaker closes, divides the action, screw or bolt can not receive transverse shear force, and then has promoted the connection stability of support subassembly 20 and solid sealed utmost point post movable end 10, has prolonged the life of solid sealed utmost point post subassembly.

As shown in fig. 1 and 2, the housing 11 includes a housing body 113 and a mounting plate 114. The housing body 113 has a receiving chamber and a first through hole which are communicated with each other, and one end of the vacuum interrupter 12 extends out of the receiving chamber after passing through the first through hole. The mounting plate 114 is disposed at one end of the housing body 113 having the first through hole, the mounting plate 114 has a second through hole 1141, the mounting surface 111 and a fastening hole 112, the second through hole 1141 is communicated with the first through hole, and the fastening hole 112 is disposed outside the second through hole 1141 and spaced from the second through hole 1141. Wherein the mounting surface 111 is located on a side of the mounting plate 114 remote from the housing body 113. Like this, above-mentioned setting makes the structure of shell 11 simpler, and easy processing, realization have reduced the processing cost and the processing degree of difficulty of solid sealed utmost point post subassembly.

Optionally, the housing body 113 and the mounting plate 114 are bonded or welded. Like this, the above-mentioned setting not only makes the connected mode of two more nimble to satisfy different user demands and operating mode, also promoted two connection stability.

Optionally, the fastening holes 112 are plural, and the plural fastening holes 112 are disposed at intervals around the circumference of the vacuum interrupter 12. In this way, the above arrangement improves the connection stability of the bracket assembly 20 and the movable end 10 of the solid-sealed pole, and avoids the influence of the separation of the bracket assembly and the movable end on the structural stability of the solid-sealed pole assembly; on the other hand, the structural layout of the fastening holes 112 on the shell 11 is more reasonable and compact, and the space utilization rate of the shell 11 is improved.

Specifically, the mounting plate 114 is disposed at one end of the housing body 113, and a plate surface far away from the end forms the mounting surface 111, the housing body 113 is sleeved on the vacuum interrupter 12, one end of the vacuum interrupter 12 penetrates into the second through hole 1141 via the first through hole, the fastening holes 112 are plural, and the plural fastening holes 112 are disposed around the second through hole 1141 at intervals in the circumferential direction and are located outside the second through hole 1141. Wherein, the fastener 22 is a plurality of, and a plurality of fasteners 22 are arranged in a one-to-one correspondence with a plurality of fastening holes 112.

In the present embodiment, the number of the fastening holes 112 is four, and the four fastening holes 112 are uniformly distributed around the circumference of the second through hole 1141. The number of the fasteners 22 is four, and the four fasteners 22 are arranged in one-to-one correspondence with the four fastening holes 112, so that the connection stability of the bracket assembly 20 and the fixed terminal post movable end 10 is improved.

It should be noted that the number of the fastening holes 112 is not limited thereto, and may be adjusted according to the working condition and the use requirement. Alternatively, the fastening holes 112 are three, or five, or six, or more.

The number of the fasteners 22 is not limited to this, and may be the same as the number of the fastening holes 112.

As shown in fig. 1, the flanging structure 212 has a third through hole 2121, the third through hole 2121 is opposite to and communicates with the second through hole 1141, and the fastener 22 is located outside the third through hole 2121 and is spaced apart from the third through hole 2121. Thus, when the fastening piece 22 is arranged on the flanging structure 212 and the fastening hole 112 in a penetrating manner, the arrangement avoids interference among the fastening piece 22, the vacuum interrupter 12, the elastic component 24 and the conductive piece 25 to influence the normal operation of the circuit breaker, and improves the operation reliability of the circuit breaker. Meanwhile, one end of the vacuum interrupter 12 extending into the second through hole 1141 also extends into the third through hole 2121, so as to ensure that the vacuum interrupter 12 can cooperate with the elastic component 24 and the conductive element 25.

Specifically, the flange structure 212 has a mounting hole, and the fastening end of the fastener 22 passes through the mounting hole and then extends into the fastening hole 112 and is screwed with the fastening hole 112.

As shown in fig. 1, the bracket body 211 is plate-shaped and forms an installation space with the flanging structure 212, and the bracket assembly 20 further includes a transmission crank arm assembly 23, an elastic assembly 24 and a conductive member 25. The transmission crank arm assembly 23 is movably arranged on the bracket body 211, the transmission crank arm assembly 23 is connected with the vacuum arc-extinguishing chamber 12 through the elastic assembly 24, and the conductive piece 25 is connected with the vacuum arc-extinguishing chamber 12 and is positioned between the elastic assembly 24 and the vacuum arc-extinguishing chamber 12. The transmission crank arm assembly 23, the elastic assembly 24 and the conductive piece 25 are all located in the installation space. In this way, the above arrangement of the support 21 makes the assembly between the support 21 and the elastic component 24 and the conductive component 25 not be sequential, so that the elastic component 24 and the conductive component 25 can be assembled in advance, and the assembly space is not limited.

Specifically, the assembly process of the driving crank arm assembly 23, the elastic assembly 24 and the conductive member 25 is as follows: the electric conduction piece 25 is firstly arranged on the moving end of the vacuum arc-extinguishing chamber in a penetrating way, the elastic component 24 is sleeved on the moving end of the vacuum arc-extinguishing chamber, the electric conduction piece 25 is positioned on the inner side of the elastic component 24, and finally the transmission crank arm component 23 is connected with the moving end of the vacuum arc-extinguishing chamber so as to drive the moving end of the vacuum arc-extinguishing chamber to conduct opening and closing actions.

Specifically, for the embedded assembly of support and shell in prior art, because flange structure 212 is direct with mounting panel 114 laminating setting for around forming great installation space and can not take place structural interference between the shell between support body 211 and the flange structure 212, and then make the assembly order between support 21 and elastic component 24, the electrically conductive piece 25 more nimble.

Alternatively, the bracket body 211 and the burring 212 are integrally formed. Like this, above-mentioned setting has not only reduced the processing cost and the processing degree of difficulty of support 21, has also promoted the structural strength and the structural stability of support 21, and then has prolonged the life of support 21.

In this embodiment, the fastening hole 112 is a threaded hole, the fastening piece 22 is a socket head cap bolt, and the bolt head of the socket head cap bolt is located in the installation space and is in a limit stop with the flanging structure 212. Like this, above-mentioned set up hexagon socket head cap screw's bolt head is hidden in the inboard of support 21, and then improved the electric field environment of solid sealed utmost point post movable end 10 and support subassembly 20 in the assembly department, promoted the interphase insulation level of circuit breaker.

Optionally, the housing 11 is made of an epoxy material. Like this, above-mentioned setting makes shell 11 be made by insulating material, and has promoted the arc resistance of shell 11, avoids taking place the electric shock accident.

As shown in fig. 2, the movable end 10 of the solid sealed pole further includes a conductive rod 13, where the conductive rod 13 is disposed in the housing 11 in a penetrating manner and electrically connected to the vacuum interrupter 12.

Specifically, the mounting steps of the solid-sealed pole assembly are as follows:

the bracket 21 is fastened on the mounting surface 111 of the movable end 10 of the solid-sealed pole by using 4 inner hexagon bolts, and then the elastic component 24, the conductive piece 25 and the transmission crank arm component 23 are assembled in sequence, so that the assembly work of the solid-sealed pole component can be completed.

The application also provides a circuit breaker (not shown) comprising the solid-sealed pole assembly.

Optionally, the circuit breaker is a solid-state circuit breaker.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

the solid-sealed pole assembly comprises a solid-sealed pole moving end and a bracket assembly, wherein the solid-sealed pole moving end comprises a shell and a vacuum arc-extinguishing chamber arranged in the shell, the end part of the shell is provided with a mounting surface, and a fastening hole is formed in the mounting surface. The bracket component comprises a bracket and a fastener, the bracket comprises a bracket body and a flanging structure arranged on the bracket body, the flanging structure is attached to at least part of the mounting surface, and the fastener is arranged in the flanging structure and the fastening hole in a penetrating manner so as to mount the bracket on the mounting surface. Therefore, when the bracket component and the movable end of the solid-sealed pole are required to be assembled, the flanging structure is attached to the mounting surface, and then the fastener is arranged in the flanging structure and the fastening hole in a penetrating manner, so that the bracket component is mounted on the mounting surface of the movable end of the solid-sealed pole.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A solid seal pole assembly, comprising:

the fixed-sealing pole movable end (10) comprises a shell (11) and a vacuum arc extinguishing chamber (12) arranged in the shell (11), wherein the end part of the shell (11) is provided with a mounting surface (111), and a fastening hole (112) is formed in the mounting surface (111);

support subassembly (20), including support (21) and fastener (22), support (21) include support body (211) and set up turn-ups structure (212) on support body (211), turn-ups structure (212) with at least part laminating mutually of installation face (111) sets up, fastener (22) wear to establish turn-ups structure (212) with in fastening hole (112), in order will support (21) are installed on installation face (111).

2. The solid seal pole assembly of claim 1, wherein the direction of extension of the fastening hole (112) coincides with the direction of extension of the housing (11).

3. The encapsulated pole assembly of claim 1, wherein the housing (11) comprises:

the shell body (113) is provided with a containing cavity and a first through hole which are communicated with each other, and one end of the vacuum arc extinguishing chamber (12) passes through the first through hole and then extends out of the containing cavity;

the mounting plate (114) is arranged at one end of the shell body (113) with the first through hole, the mounting plate (114) is provided with a second through hole (1141), the mounting surface (111) and the fastening hole (112), the second through hole (1141) is communicated with the first through hole, and the fastening hole (112) is positioned outside the second through hole (1141) and is arranged at intervals with the second through hole (1141); wherein the mounting surface (111) is located at a side of the mounting plate (114) away from the housing body (113).

4. A solid sealed pole assembly according to claim 3, wherein the flanging structure (212) has a third through hole (2121), the third through hole (2121) being disposed opposite to and in communication with the second through hole (1141), and the fastener (22) being located outside the third through hole (2121) and spaced apart from the third through hole (2121).

5. The solid sealed pole assembly according to claim 1, wherein the bracket body (211) is plate-shaped and forms an installation space with the flanging structure (212) in a surrounding manner, and the bracket assembly (20) further comprises:

a transmission crank arm assembly (23) movably arranged on the bracket body (211);

the elastic component (24), the said transmission crank arm assembly (23) is connected with said vacuum interrupter (12) through the said elastic component (24);

a conductive member (25) connected to the vacuum interrupter (12) and located between the elastic member (24) and the vacuum interrupter (12);

the transmission crank arm assembly (23), the elastic assembly (24) and the conductive piece (25) are all located in the installation space.

6. The solid state pole assembly of claim 1, wherein the bracket body (211) and the flange structure (212) are an integrally formed structure.

7. The solid state pole assembly of claim 5, wherein the fastening hole (112) is a threaded hole, the fastener (22) is a socket head cap screw, and the head cap screw is located in the installation space and is in a limit stop with the flange structure (212).

8. The encapsulated pole assembly of claim 1, wherein the housing (11) is made of an epoxy material.

9. The encapsulated pole assembly of claim 1, wherein the plurality of fastening holes (112) are a plurality of the fastening holes (112) being spaced circumferentially around the vacuum interrupter (12).

10. A circuit breaker comprising the encapsulated pole assembly of any one of claims 1 to 9.