CN107248475B

CN107248475B - Heat dissipation shell for fuse type isolating switch

Info

Publication number: CN107248475B
Application number: CN201710670040.0A
Authority: CN
Inventors: 周羽; 郁玲; 陆培琪; 赵青; 吕力
Original assignee: SHANGHAI ELECTRIC CERAMIC WORKS
Current assignee: SHANGHAI ELECTRIC CERAMIC WORKS
Priority date: 2017-08-08
Filing date: 2017-08-08
Publication date: 2020-04-24
Anticipated expiration: 2037-08-08
Also published as: CN107248475A

Abstract

The invention discloses a heat dissipation shell for a fuse type isolating switch, which comprises a base, an upper cover and a heat dissipation seat, wherein the base comprises a base and a left side plate and a right side plate which are arranged on two sides of the base; the rear end of the upper cover is movably connected with the base through a hinge shaft, the upper cover and the base enclose a box body with an opening at the front end and the rear end, the space in the box body is divided into three independent spaces which are transversely arranged by two longitudinal partition plates, and the bottom end of each longitudinal partition plate is fixed on the base; each independent interval is internally provided with a positioning groove, a pair of conductive plates, a pair of sockets and a pair of wiring bolts which are positioned on the base; and the heat radiating seat is arranged in each independent interval. The radiating shell for the fuse type isolating switch is matched with the radiating block for use, so that the radiating performance of the isolating switch can be improved, the integral temperature rise of the isolating switch can be reduced by several K or even more than ten K, and the problem of overhigh temperature rise is solved.

Description

Heat dissipation shell for fuse type isolating switch

Technical Field

The invention relates to a heat dissipation housing for a fused disconnect switch.

Background

Fuse formula isolator can break off the heavy current, more importantly can protect isolator when facing the heavy current, and the fuse among the fuse formula isolator is equivalent to the fuse. The fuse type isolating switch is a current protector which is manufactured according to the principle that after current exceeds a specified value for a certain time, the fuse body of the fuse is melted by heat generated by the fuse type isolating switch, so that a circuit is disconnected.

The fuse type disconnecting switch needs to satisfy the following three points:

1. protecting the switch by using a fuse;

2. a disconnector capable of switching on, carrying and breaking a current under normal circuit conditions (including a specified overload), and carrying a current under specified abnormal circuit conditions (e.g. a short circuit) for a specified time;

3. the circuit can be safely isolated, and when the circuit is in the brake-off position, the circuit is ensured to be disconnected and the safe operation is ensured.

Chinese patent CN201010190166.6 discloses a combined fuse type isolating switch, when in use, the ac voltage can reach 690V at most, the current can reach 1600A at most, and the using requirements under various extreme environmental conditions can be met, but when the fuse type isolating switch is used for disconnecting a large current, the temperature rise is high in the using process, and how to solve the problem of the over-high temperature rise is a difficult problem in the industry.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides a radiating shell for a fuse type isolating switch, which is matched with a radiating block for use, can improve the radiating performance of the isolating switch, can reduce the integral temperature rise of the isolating switch by several K or even more than ten K, and solves the problem of overhigh temperature rise.

The technical scheme for realizing the purpose is as follows: a heat dissipating housing for a fused disconnect switch comprising a base, an upper cover and a heat sink, wherein:

the base comprises a base and a left side plate and a right side plate which are arranged on two sides of the base;

the rear end of the upper cover is movably connected with the base through a hinge shaft, the upper cover and the base enclose a box body with an opening at the front end and the rear end, the space in the box body is divided into three independent spaces which are transversely arranged by two longitudinal partition plates, and the bottom end of each longitudinal partition plate is fixed on the base;

each independent interval is internally provided with a positioning groove, a pair of conductive plates, a pair of sockets and a pair of wiring bolts which are positioned on the base; the positioning groove is formed in the middle of the base; the pair of conducting plates are arranged at the front end and the rear end of the base in a one-to-one correspondence manner; the pair of sockets are arranged on the inner sides of the pair of conducting plates in a one-to-one correspondence manner; the pair of wiring bolts are arranged on the outer sides of the pair of conducting plates in a one-to-one correspondence manner;

every all be provided with one in the independent interval the radiating seat, the radiating seat sets up the front end of base is in under the current conducting plate, a plurality of louvres or radiating groove have been seted up on the radiating seat.

The radiating shell for the fuse type isolating switch is characterized in that a radiating block is arranged at the front end of the radiating seat, and the radiating block is connected with the bottom of a wiring bolt located on the outer side of a current conducting plate at the front end of the base.

The utility model provides an foretell heat dissipation casing for fuse formula isolator, wherein, every all be provided with in the independent interval and be located fuse on the medial surface of upper cover, just the fuse is located correspondingly directly over the constant head tank.

The radiating shell for the fuse type isolating switch is matched with the radiating block for use, so that the radiating performance of the isolating switch can be improved, the integral temperature rise of the isolating switch can be reduced by several K or even more than ten K, and the problem of overhigh temperature rise is solved.

Drawings

FIG. 1 is a front view of a heat dissipating housing for a fused disconnect switch of the present invention;

FIG. 2 is a block diagram of the interior of an isolated compartment of a heat dissipating housing for a fused disconnect switch in accordance with the present invention;

fig. 3 is a state diagram of the use of the heat dissipating housing for the fused disconnect switch of the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:

referring to fig. 1 and 2, in an embodiment of the present invention, a heat dissipation housing for a fuse type disconnecting switch includes a base 11, an upper cover 12, and a heat dissipation seat 13, where the base 11 includes a base 111, and left and

right side plates

112 and 113 installed at two sides of the base, and a rear end of the upper cover 12 is movably connected to the base 11 through a hinge; the upper cover 12 and the base 11 enclose a box with front and rear ends opened, the space in the box is divided into three independent spaces 100 arranged transversely by two longitudinal partitions 114, and the bottom end of each longitudinal partition 114 is fixed on the base 111.

Each independent interval 100 is internally provided with a positioning groove 17, a pair of conductive plates 14, a pair of sockets 15 and a pair of wiring bolts 16 which are positioned on a base 111; the positioning groove 17 is formed in the middle of the base 111; a pair of conductive plates 14 are provided at the front and rear ends of the base 111 in one-to-one correspondence; a pair of sockets 15 are mounted on the inner sides of the pair of conductive plates 14 in one-to-one correspondence; a pair of terminal bolts 16 are mounted on the outer sides of the pair of conductive plates 14 in a one-to-one correspondence.

Each independent space 100 is provided with a heat dissipation seat 13 therein, the heat dissipation seat 13 is disposed right below the conductive plate 14 at the front end of the base 111, and the heat dissipation seat 13 is provided with a plurality of heat dissipation holes or heat dissipation grooves.

Referring to fig. 3, a heat sink 2 is disposed at the front end of each heat sink 13, and the heat sink is connected to the bottom of the terminal bolt 16 located outside the conductive plate 14 at the front end of the base 111. A fuse located on the inner side of the upper cover 12 is provided in each individual compartment 100 and located directly above the corresponding positioning slot 17. When the upper cover 12 is covered on the base 11, the fuses are clamped in the corresponding positioning grooves 17.

The heat dissipation shell for the fuse type isolating switch is provided with the heat dissipation seat, and the heat dissipation seat is matched with the heat dissipation block for use, so that the heat dissipation performance of the isolating switch can be improved, the integral temperature rise of the isolating switch can be reduced by several K or even more than ten K, and the problem of overhigh temperature rise is solved.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides a heat dissipation casing for fuse formula isolator which characterized in that, includes base, upper cover and heat dissipation seat, wherein:

each independent interval is internally provided with one heat dissipation seat, the heat dissipation seats are arranged right below the conductive plates at the front ends of the bases, and the heat dissipation seats are provided with a plurality of heat dissipation holes or heat dissipation grooves;

the front end of the heat dissipation seat is provided with a heat dissipation block, and the heat dissipation block is connected with the bottom of a wiring bolt positioned on the outer side of the current conducting plate at the front end of the base;

each independent interval is internally provided with a fuse on the inner side surface of the upper cover, and the fuse is positioned right above the corresponding positioning groove;

the lower part of the heat dissipation block is provided with a plurality of heat dissipation grooves; the end face of the radiating block is flush with the end face of the radiating seat, and radiating holes or radiating grooves in the radiating seat are uniformly distributed on two sides of the radiating block.