CN215896980U

CN215896980U - High-current high-heat-dissipation type contact and contact box integrated device

Info

Publication number: CN215896980U
Application number: CN202121924627.8U
Authority: CN
Inventors: 徐懿; 王莉; 奚彩霞; 冯伟; 赵美莲
Original assignee: Zhenjiang Daquan Intelligent Electric Co ltd
Current assignee: Zhenjiang Daquan Intelligent Electric Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-22
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a high-current high-heat-dissipation type contact and contact box integrated device which comprises a contact box shell, a static contact, a threaded hole, an assembly fixing bolt hole, an assembly fixing ring and an inner cavity.

Description

High-current high-heat-dissipation type contact and contact box integrated device

Technical Field

The utility model relates to the field of medium-voltage complete equipment, in particular to a high-current high-heat-dissipation type contact and contact box integrated device.

Background

The contact box is the important insulating part in being applied to 10 ~ 35kV electric power system cubical switchboard, and the cubical switchboard of different current grades uses the split type contact box of different specification models, and the contact box is of more kind, and traditional heavy current contact box upper end opening part is mostly all taken by copper bar itself, and the heat dissipation space is little to lead to the heat dispersion of contact box poor.

In order to solve the above problems, for example, patent publication No. CN207868702U discloses a heat dissipation type contact box, which includes a box body in a cylindrical shape; the bottom of the box body is open, the top of the box body is closed, the top of the box body is provided with a metal insert for mounting a high-voltage static contact, the outer side of the top of the box body is provided with an annular insulating wall which extends upwards, a heat dissipation cavity which is enclosed by the annular insulating wall is used for mounting and dissipating heat of the busbar, the side part of the annular insulating wall is also provided with an opening through which the busbar passes, and the thickness of the annular insulating wall is more than 0.2cm and less than 2 cm; the metal insert penetrates out of the top of the box body upwards and is exposed in the heat dissipation cavity for fixedly mounting the busbar. The utility model improves the heat dissipation performance of the heat dissipation box, thereby improving the electrical safety.

At present, the above patents have certain disadvantages in the actual operation process: above-mentioned heat dissipation type contact box bottom open design, the top outside of top confined design box body have the annular insulating wall that upwards extends the formation, and the heat dissipation cavity that this annular insulating wall encloses supplies female the arranging installation and the heat dissipation, and although the radiating effect is better, but occupation space is too big, needs one kind now to combine together practice thrift the space with contact box with the contact and also can not drop the device of radiating effect.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a large-current high-heat-dissipation type contact and contact box integrated device to solve the problems.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a high heat dissipation type contact of heavy current and integrative device of contact box, includes contact box casing, static contact, screw hole, assembly fixing bolt hole, assembly fixing ring, inner chamber, the static contact is connected with the contact box casing, and right flank and contact box casing right flank parallel and level, the screw hole link up the setting inside the static contact, assembly fixing ring sets up the outside at the contact box casing, assembly fixing bolt hole sets up on assembly fixing ring, the inner chamber sets up inside the contact box casing, and the unique design that the screw hole was seted up to inner chamber and static contact has promoted the radiating effect by a wide margin.

Preferably, the static contact and the contact box shell are connected in a pouring mode to form an integrated structure, and the space during working is saved.

Preferably, the hollow cylinder arranged inside the static contact is a static contact cavity.

Preferably, the direction of the opening of the cavity of the static contact is consistent with that of the opening of the inner cavity.

Preferably, the number of the threaded holes penetrating through the static contact is at least 1.

Preferably, the number of the assembly fixing bolt holes is at least 2.

Preferably, the assembly fixing ring is square and is provided with round corners on the periphery.

Compared with the prior art, the device has the advantages that: the utility model provides a high heat dissipation type contact of heavy current and integrative device of contact box includes contact box casing, static contact, screw hole, assembly fixing bolt hole, assembly fixing ring, inner chamber, pours the static contact and forms integrated structure with contact box casing connection, has practiced thrift the space of during operation to the heat radiating effect has been promoted by a wide margin to the unique design that the screw hole was seted up to inner chamber and static contact.

Drawings

FIG. 1 is a schematic structural diagram of a high-current high-heat-dissipation type contact and contact box integrated device according to the present invention;

FIG. 2 is a side view of the integrated device of the high current and high heat dissipation type contact and the contact box of the present invention;

FIG. 3 is a cross-sectional view of the integrated device of the high-current and high-heat-dissipation type contact and the contact box of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The utility model provides a technical scheme that: a high-current high-heat-dissipation type contact and contact box integrated device comprises a contact box shell 1, a static contact 2, a threaded hole 3, an assembly fixing bolt hole 4, an assembly fixing ring 5 and an inner cavity 6, wherein the static contact 2 is connected with the contact box shell 1 in a pouring mode, the right side face of the static contact is flush with the right side face of the contact box shell 1, the threaded hole 3 is arranged inside the static contact 2 in a penetrating mode, the number of the threaded holes 3 arranged inside the static contact 2 in the penetrating mode is at least 1, a hollow cylinder arranged inside the static contact 2 is a static contact cavity 21, the opening of the static contact cavity 21 is identical to that of the inner cavity 6, the inner cavity 6 is arranged inside the contact box shell 1, the assembly fixing ring 5 is arranged on the outer side of the contact box shell 1, the assembly fixing ring 5 is square and is provided with round corners on the periphery, and the assembly fixing bolt hole 4 is arranged on the assembly fixing ring 5, the number of the assembling fixing bolt holes 4 is at least 2.

Examples

The assembling and fixing bolt holes 4 in the assembling and fixing ring 5 are fixedly connected with the mounting plate 200 through bolts, the threaded holes 3 are communicated with 5 internal parts of the static contact 2, the distribution positions of the other 4 internal parts are 1 circle center and distributed around the circle center, the assembling and fixing bolt holes 4 are 4 and distributed around the assembling and fixing ring 5, two groups of large-current high-heat-dissipation type contacts and contact box integrated devices are arranged on the mounting plate 200 during working, one group of large-current high-heat-dissipation type contacts and contact box integrated devices are connected with the bus chamber copper bar 300, the other group of large-current high-heat-dissipation type contacts and cable chamber copper bar 400 are connected with the cable chamber copper bar 300, the bus chamber copper bar 300 is fixed on the static contact 2 through the bus chamber bolts 301, the cable chamber copper bar 400 is fixed on the static contact 2 through the cable chamber bolts 401, the two groups are separately arranged, and generated heat is dispersed and dissipated.

The working mode is as follows:

after the circuit breaker 100 is pushed to the working position, the moving contact on the circuit breaker 100 is meshed with the static contact 2 inside the contact box shell 1, when current flows through the moving contact, heat generated by the moving contact on the circuit breaker 100 and the static contact 2 inside the contact box shell 1 can be dissipated through the static contact cavity 21 and the inner cavity 6, the heat can be dissipated by means of the cable chamber copper bar 400 and the bus chamber copper bar 300 which are connected with the static contact 2, and the heat dissipation performance is greatly improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a high heat dissipation type contact of heavy current and integrative device of contact box which characterized in that: the novel contact box is characterized by comprising a contact box shell (1), a fixed contact (2), a threaded hole (3), an assembly fixing bolt hole (4), an assembly fixing ring (5) and an inner cavity (6), wherein the fixed contact (2) is connected with the contact box shell (1), the right side face of the fixed contact is flush with the right side face of the contact box shell (1), the threaded hole (3) is communicated with the inside of the fixed contact (2), the assembly fixing ring (5) is arranged on the outer side of the contact box shell (1), the assembly fixing bolt hole (4) is arranged on the assembly fixing ring (5), and the inner cavity (6) is arranged inside the contact box shell (1).

2. The high-current and high-heat-dissipation type contact and contact box integrated device as claimed in claim 1, wherein: the static contact (2) is connected with the contact box shell (1) in a pouring mode.

3. The high-current and high-heat-dissipation type contact and contact box integrated device as claimed in claim 1, wherein: the hollow cylinder arranged in the static contact (2) is a static contact cavity (21).

4. The high-current and high-heat-dissipation type contact and contact box integrated device as claimed in claim 1, wherein: the opening of the static contact cavity (21) is consistent with the opening direction of the inner cavity (6).

5. The high-current and high-heat-dissipation type contact and contact box integrated device as claimed in claim 1, wherein: the number of the threaded holes (3) penetrating through the static contact (2) is at least 1.

6. The high-current and high-heat-dissipation type contact and contact box integrated device as claimed in claim 1, wherein: the number of the assembling and fixing bolt holes (4) is at least 2.

7. The high-current and high-heat-dissipation type contact and contact box integrated device as claimed in claim 1, wherein: the shape of the assembly fixing ring (5) is a cube and round corners are arranged on the periphery of the cube.