CN110060905B

CN110060905B - Fuse type isolating switch

Info

Publication number: CN110060905B
Application number: CN201910241524.2A
Authority: CN
Inventors: 曹旭; 张学森; 周士博
Original assignee: DELIXI GROUP CO LTD
Current assignee: DELIXI GROUP CO LTD
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2024-05-07
Anticipated expiration: 2039-03-28
Also published as: CN110060905A

Abstract

The invention discloses a fuse type isolating switch, which comprises a switch body, an insulating base, a connecting plate, a clamping plate and a spring, wherein the insulating base is arranged on the switch body; the switch body is fixed on the upper part of the insulating base, a 7-shaped hooking table is formed on the outer bottom surface of the insulating base, a concave cavity is formed in the inner side of the 7-shaped hooking table, and a through hole is formed in the insulating base at a position opposite to the 7-shaped hooking table; the clamping plate comprises a fixing part fixed in the concave cavity and a positioning part positioned at the through hole; the connecting plate is fixed on the upper part of the insulating base, the two ends of the connecting plate are respectively a first electric connection end and a second electric connection end, the first electric connection end is connected with the wire inlet end of the switch body, the second electric connection end is positioned in the through hole, the spring is arranged between the positioning part and the second electric connection end, and the conductive surface outside the second electric connection end protrudes out of the outer bottom surface of the insulating base under the action of the spring in a normal state. The invention has reasonable structure and convenient installation and disassembly operations.

Description

Fuse type isolating switch

Technical Field

The invention relates to an isolating switch, in particular to a fuse type isolating switch.

Background

The patent document CN206134586U discloses a fuse type disconnecting switch for busbar type installation, including base assembly and joint device, wherein, joint device sets up on the base assembly, and joint device includes insulating housing, arc clamp plate and is used for driving the arc clamp plate and rotate the threaded fastener who compresses tightly the busbar, and arc clamp plate and threaded fastener all set up in insulating housing, and insulating housing's open end is equipped with the joint arch that is used for with base assembly joint, and insulating housing opposite both sides all are equipped with the joint arch. In the fuse type isolating switch of the patent document, the clamping device is connected with the base assembly through the clamping protrusion, the arc-shaped pressing plate is driven to rotate through the threaded fastener, and then the fuse type isolating switch is connected with the busbar, the connecting position is stable, and the fuse type isolating switch is reliably connected with the busbar in a hanging mode. The fuse type isolating switch in the above patent document has the problem that after the fuse type isolating switch is fixed on the busbar, a conductive component is required to be additionally used for electrically connecting the fuse type isolating switch and the busbar, which is not beneficial to improving the working efficiency.

Disclosure of Invention

In this regard, the invention aims to provide a fuse type isolating switch with reasonable structure, and the structure is adopted to complete the electric connection while being installed, thereby being beneficial to improving the working efficiency.

The technical scheme for realizing the aim of the invention is as follows:

A fuse type isolating switch comprises a switch body, an insulating base, a connecting plate, a clamping plate and a spring; the switch body is fixed on the upper part of the insulating base, a 7-shaped hooking table suitable for being connected with a busbar hooking is formed on the outer bottom surface of the insulating base, a concave cavity is formed in the inner side of the 7-shaped hooking table, and a through hole is formed in the insulating base at a position opposite to the 7-shaped hooking table; the clamping plate is integrally formed by stamping and comprises a fixing part fixed in the concave cavity and a positioning part extending into the insulating base from the through hole; the connecting plate is fixed on the upper portion of the insulating base, the two ends of the connecting plate are respectively a first electric connection end and a second electric connection end, the first electric connection end is connected with the incoming line end of the switch body, the second electric connection end is located in the through hole, the spring is arranged between the positioning portion and the second electric connection end, the spring has a trend that the second electric connection end is far away from the direction of the positioning portion and deforms, and in a normal state, the conducting surface on the outer side of the second electric connection end protrudes out of the outer bottom surface of the insulating base under the action of the spring.

In the above technical scheme, the fixing part is formed with a first clamping structure, and the cavity is formed with a second clamping structure matched with the first clamping structure.

In the above technical scheme, the first clamping structure is a clamping table or a clamping groove, and the second clamping structure is a clamping groove or a clamping table.

In the above technical scheme, the first power receiving end is bent into an L shape, and a groove is arranged at the tail end.

In the technical scheme, a limiting structure for limiting the busbar in the 7-shaped hooking platform is arranged at the bottom of the insulating base; the limiting structure comprises a limiting seat movably arranged on the insulating base, the limiting seat is provided with a resisting boss which is suitable for being abutted against the busbar, an elastic lock catch is integrally formed on the limiting seat, a lock table is arranged on the elastic lock catch, lock grooves are formed in the insulating base at intervals in the movable direction of the limiting seat, the lock table is matched with the lock grooves in the corresponding positions to lock the limiting seat, and the elastic lock catch is pressed to enable the lock table to withdraw from the lock grooves to unlock the lock.

In the above technical scheme, the end of the elastic lock catch is provided with a pressing part.

The invention has the positive effects that: when the fuse type isolating switch is installed, the 7-shaped hooking platforms on the insulating base are correspondingly hooked on the corresponding phase busbar to achieve hooking installation of the fuse type isolating switch, and the conducting surface is tightly contacted with the side face of the busbar under the action of the elasticity of the spring, so that the second electricity receiving end is reliably and electrically connected with the busbar, and convenience in installation and disassembly of the fuse type isolating switch is improved.

Drawings

FIG. 1 is a perspective view of a fuse type isolator switch of the present invention;

FIG. 2 is a rear view of the fuse type isolator switch of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a side view of the fuse type isolator switch of FIG. 1;

FIG. 5 is a front view of the fuse cutout of FIG. 1 with the switch body removed;

FIG. 6 is a perspective view of the fuse type isolator switch of FIG. 1 with the switch body removed;

FIG. 7 is a schematic view of an insulating base according to the present invention;

FIG. 8 is a schematic diagram of a limiting seat according to the present invention;

FIG. 9 is a schematic view of a structure of a connecting plate according to the present invention;

FIG. 10 is a front view of a card of the present invention;

FIG. 11 is a right side view of the card of FIG. 10;

FIG. 12 is a perspective view of the card of FIG. 10;

Fig. 13 is a schematic structural diagram of the card and the connecting plate when the card is matched in the invention.

The reference numerals shown in the figures are: 1-a switch body; 2-an insulating base; 21-7-shaped hooking stand; 22-locking groove; 3-connecting plates; 31-a first electrical terminal; 32-a second electrical terminal; 321-conductive surfaces; 33-grooves; 4-clamping plates; 41-a fixing part; 42-positioning part; 5-a spring; 6-busbar; 7-clamping the platform; 8-a limit seat; 80-resisting boss; 81-elastic lock catches; 82-locking the platform; 83-a pressing part; 9-clamping grooves; 10-a wiring bolt; 11-conductive plates.

Detailed Description

The following describes the specific structure of the present invention with reference to the drawings:

A fuse type isolating switch is shown as the figure, which comprises a switch body 1, an insulating base 2, a connecting plate 3, a clamping plate 4 and a spring 5; the switch body 1 is fixed on the upper part of the insulating base 2, a 7-shaped hooking platform 21 which is suitable for hooking and connecting with the busbar 6 is formed on the outer bottom surface of the insulating base 2, a concave cavity is formed in the inner side of the 7-shaped hooking platform 21, and a through hole is formed in the insulating base 2 at a position opposite to the 7-shaped hooking platform 21; the clamping plate 4 comprises a fixing part 41 fixed in the concave cavity and a positioning part 42 extending into the insulating base 2 from the through hole; the connecting plate 3 is fixed on the upper portion of the insulating base 2, two ends of the connecting plate 3 are respectively a first electric connection end 31 and a second electric connection end 32, the first electric connection end 31 is connected with a wire inlet end of the switch body 1, the second electric connection end 32 is located in the through hole, the spring 5 is arranged between the positioning portion 42 and the second electric connection end 32, the spring 5 has a trend of enabling the second electric connection end 32 to deform in a direction away from the positioning portion 42, and a conductive surface 321 on the outer side of the second electric connection end 32 protrudes out of the outer bottom surface of the insulating base 2 under the action of the spring 5 in a normal state. By adopting the structure in this embodiment, when the fuse type isolating switch is installed, the 7-shaped hooking platforms 21 on the insulating base 2 are hooked on the corresponding phase busbar 6 to realize the hooking installation of the fuse type isolating switch, that is, the busbar 6 is positioned in the 7-shaped hooking platforms, and the conductive surface 321 is in close contact with the side surface of the busbar 6 under the action of the elasticity of the spring 5, so that the second electric terminal 32 is reliably electrically connected with the busbar 6, thereby improving the convenience of installing and dismantling the fuse type isolating switch.

In this embodiment, a first clamping structure is formed on the fixing portion 41, a second clamping structure matched with the first clamping structure is formed in the cavity, the fixing portion 41 is matched with the cavity through the first clamping structure and the second clamping structure, specifically, the first clamping structure is a clamping table 7 or a clamping groove 9, and the second clamping structure is a clamping groove 9 or a clamping table 7.

In this embodiment, the first electrical connection end 31 is bent into an L shape, and a groove 33 is provided at the end, so that the connection between the wire inlet end (the wire inlet end has the conductive plate 11 and the connection bolt 10) and the first electrical connection end 31 is facilitated, specifically, the first electrical connection end 31 is inserted into the wire inlet end, the connection bolt 10 is avoided through the groove 33, and then the first electrical connection end 31 is pressed on the conductive plate 11 by tightening the connection bolt 10.

As a further improvement of the above embodiment, in order to further mount the fuse type isolating switch on the busbar 6 more reliably, a limiting structure for limiting the busbar 6 in the 7-shaped hooking stand is provided at the bottom of the insulating base 2; the limiting structure comprises a limiting seat 8 movably arranged on the insulating base 2, the limiting seat 8 is provided with a resisting boss 80 which is suitable for being abutted against the busbar 6, an elastic lock catch 81 is integrally formed on the limiting seat 8, a lock table 82 is arranged on the elastic lock catch 81, lock grooves 22 are formed in the insulating base 2 at intervals in the movable direction of the limiting seat 8, the lock table 82 is matched with the lock grooves 22 in the corresponding positions to lock the limiting seat 8, and the lock table 82 is withdrawn from the lock grooves 22 by pressing the elastic lock catch 81 so as to unlock the lock.

Still further, a pressing portion 83 is provided at the end of the elastic lock 81, and when the lock is unlocked, the elastic lock 81 is deformed inwards by pressing the pressing portion 83 by a finger, so that the lock base 82 is changed in position and is withdrawn from the lock groove 22 to unlock.

It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the invention remain within the scope of the invention.

Claims

1. The fuse type isolating switch is characterized by comprising a switch body (1), an insulating base (2), a connecting plate (3), a clamping plate (4) and a spring (5); the switch body (1) is fixed on the upper part of the insulating base (2), a 7-shaped hooking table (21) suitable for hooking and connecting with the busbar (6) is formed on the outer bottom surface of the insulating base (2), a concave cavity is formed in the inner side of the 7-shaped hooking table (21), and a through hole is formed in the insulating base (2) at a position opposite to the 7-shaped hooking table (21); the clamping plate (4) comprises a fixing part (41) fixed in the concave cavity and a positioning part (42) extending into the insulating base (2) from the through hole, a first clamping structure is formed on the fixing part (41), and a second clamping structure matched with the first clamping structure is formed in the concave cavity; the utility model discloses a high-voltage power supply switch, including insulating base (2), connecting plate (3), spring (5), connecting plate (3) are fixed insulating base (2) upper portion, the both ends of connecting plate (3) are first electric end (31) and second electric end (32) that connects respectively, first electric end (31) connect the inlet wire end of switch body (1), second electric end (32) are in the through-hole, spring (5) are located between location portion (42) and second electric end (32), spring (5) have make second electric end (32) keep away from location portion (42) direction emergence deformation's trend, normally under the effect of spring (5) conducting surface (321) outside second electric end (32) bulge in insulating base (2) outer bottom surface, first electric end (31) are buckled into L type to be equipped with recess (33) at the end.

2. The fuse-type isolating switch according to claim 1, wherein the first clamping structure is a clamping table (7) or a clamping groove (9), and the second clamping structure is a clamping groove (9) or a clamping table (7).

3. A fuse-type isolating switch according to claim 1, characterized in that a limit structure for limiting a busbar (6) in the 7-shaped hooking stand (21) is arranged at the bottom of the insulating base (2); the limiting structure comprises a limiting seat (8) movably mounted on the insulating base (2), the limiting seat (8) is provided with a resisting boss (80) suitable for being abutted against the busbar (6), an elastic lock catch (81) is integrally formed on the limiting seat (8), a lock table (82) is arranged on the elastic lock catch (81), lock grooves (22) are formed in the insulating base (2) at intervals in the movable direction of the limiting seat (8), the lock table (82) is matched with the lock grooves (22) in corresponding positions to lock the limiting seat (8), and the elastic lock catch (81) is pressed to enable the lock table (82) to withdraw from the lock grooves (22) so as to release locking.

4. A fuse-type isolator switch as claimed in claim 3, wherein the end of the elastic latch (81) is provided with a pressing portion (83).