Small connection type fuse with multiple strands of annealed copper wires

Abstract

The utility model discloses a small connection type fuse with multi-strand soft copper wires, which comprises soft copper connecting wires, contacts, quartz sand, an outer tube, a six-star pillar, a melt and a connecting piece, a wiring terminal is welded at one end of the multi-strand soft copper connecting wires, the other end of the multi-strand soft copper connecting wires passes through a through hole and is welded on the contacts of the fuse, the contacts are pressed on the outer tube of the fuse, and the quartz sand is welded on the outer tube of the fuse. A melt in the fuse is wound on a pillar bonded by gypsum powder, the pillar is composed of a connecting piece and a six-star pillar, and quartz sand is filled in a gap between an outer tube and the melt and a gap between the outer tube and the pillar to play an arc extinguishing role. The integrated capacitive coupler is low in production cost, novel in structure, convenient to place and use and more flexible in installation mode, and the high-voltage end of the integrated capacitive coupler can be directly connected to a high-voltage transmission line.

Description

Technical Field

[0001] The utility model relates to a field, in particular to a small-sized fuse with multi-strand soft copper wire connection. Background Art

[0002] The fuse used to protect the integrated capacitor coupler (coupling capacitor and combined filter are integrated into one) plays the role of short-circuit protection. It is mainly used in AC 50Hz, rated voltage 12kV power system. The traditional appearance of the fuse conforms to the British BS standard or the German DIN standard. It is large in size, occupies a large space, and is only suitable for indoor use. Utility Model Content

[0003] The utility model aims to provide a small-sized fuse with multi-strand soft copper wire connection to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A small-sized fuse with multi-strand soft copper wire connection type comprises a soft copper connecting wire, a contact, quartz sand, an outer tube, a six-star pillar, a fuse, and a connecting piece. The terminal is welded to one end of the multi-strand soft copper connecting wire, and the other end of the multi-strand soft copper connecting wire passes through a through hole and is welded to the contact of the fuse. The contact is pressed onto the outer tube of the fuse. The melt inside the fuse is wound on a pillar bonded with gypsum powder. The pillar consists of a connecting piece and a six-star pillar. Quartz sand is filled in the gap between the outer tube, the melt and the pillar to extinguish the arc.

[0006] Compared with the prior art, the utility model has the following advantages: the utility model provides a small fuse with multi-strand soft copper wire connection, which has low production cost, novel structure, easy placement, convenient use, more flexible installation method, and can directly connect the high-voltage end of the integrated capacitor coupler to the high-voltage transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0008] Figure 2 It is a schematic diagram of the use scenario of the utility model;

[0009] Among them: 1 soft copper connecting wire, 2 contacts, 3 quartz sand, 4 outer tube, 5 six-star support, 6 fuse, 7 connecting parts, A, fuse body, B, insulating sleeve, C top cap. DETAILED DESCRIPTION

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0011] like Figure 1 As shown, a small-sized fuse with multi-strand soft copper wire connection type comprises a soft copper connecting wire 1, a contact 2, quartz sand 3, an outer tube 4, a six-star pillar 5, a fuse 6, and a connector 7. The terminal is welded to one end of the multi-strand soft copper connecting wire 1, and the other end of the multi-strand soft copper connecting wire 1 passes through a through hole and is welded to the contact 2 of the fuse. The contact 2 is pressed onto the outer tube 4 of the fuse. The fuse 6 inside the fuse is wound on a pillar bonded with gypsum powder. The pillar is composed of a connector 7 and a six-star pillar 5. The quartz sand 3 is filled in the gap between the outer tube 4 and the melt 6 and the pillar to extinguish the arc.

[0012] like Figure 2 As shown, since the product of the utility model is small in size, it can be used by tightly fitting with a silicone insulating sleeve with an umbrella skirt on the outside, which can increase the creepage distance and enhance the insulation performance; it also has the functions of waterproofing, corrosion resistance and enhancing mechanical strength, and can also lengthen the fuse break spacing and improve the performance of the fuse. The specific use method is as follows: put the soft copper wire of fuse A through the small round hole at the bottom of the insulating sleeve B and put it into the insulating sleeve, and seal the small round hole with potting glue; another soft copper wire passes through the small round hole of the top cap C, and then tighten the top cap, and also seal the small round hole with potting glue, and seal the bottom and inside of the top cap with sealant.

[0013] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A small fuse with multi-strand soft copper wire connection, characterized in that: It includes soft copper connecting wire, contact, quartz sand, outer tube, six-star pillar, fuse, and connecting parts. The terminal is welded to one end of the multi-strand soft copper connecting wire. The other end of the multi-strand soft copper connecting wire passes through a through hole and is welded to the contact of the fuse. The contact is pressed onto the outer tube of the fuse. The melt inside the fuse is wound on a pillar bonded with gypsum powder. The pillar is composed of a connecting part and a six-star pillar. Quartz sand is filled in the gap between the outer tube and the melt and the pillar to extinguish the arc.

Images