CN219575549U - Multipurpose double-acting fusing insurance component - Google Patents

Abstract

The utility model relates to the field of closed type fusing protection devices of power distribution systems and control systems, and discloses a multipurpose double-acting fusing safety component which comprises a wire welding spot, wherein a conductive seat is arranged on one side of the wire welding spot, a wire welding groove is formed in the conductive seat, a first threading hole is formed in the conductive seat, a conductive seat slot is fixedly formed in one side of the wire seat, and an insulating tube is arranged on one side of the conductive seat. In the utility model, the position of one side of a heat sensing seat of the component is in a temperature sensitive area of equipment, the heat sensing seat directly conducts temperature to a thermal fusion Jin Yajie ring through a conducting rod, a temperature fusing value is calibrated according to the characteristics of the alloy material, if the conducted temperature reaches the fusing value, the thermal fusion Jin Yajie ring is melted to break off an overcurrent fuse, so that the purpose of one-time fusing is achieved, on the other hand, the overcurrent fuse has a short-circuit protection function according to the preset overcurrent fusing value, and can be quickly fused to achieve the protection purpose when the passing current reaches a preset value.

Description

Multipurpose double-acting fusing insurance component

Technical Field

The utility model relates to the field of closed type fusing protection devices of power distribution systems and control systems, in particular to a multipurpose double-acting fusing insurance component.

Background

The fuse is a kind of short-circuit protector, widely used in power distribution system and control system, mainly for short-circuit protection or serious overload protection. The principle of the fuse is that the conductor can be heated by utilizing the current flowing through the conductor, and the conductor is melted after reaching the melting point of the conductor, so that the circuit is disconnected to protect the electrical appliance and the circuit from being burnt out. It is a build up of heat so overload protection can also be achieved. When in use, the melt is connected in series in a protected circuit, and when the circuit has a short circuit fault, the melt is instantaneously fused to break the circuit, thereby playing a role in protection. The fuse is not reusable and requires replacement of the melt after protection. The common closed fuse is mainly a non-filler fuse, and consists of a melt, an insulating tube (insulating seat) for installing the melt and the like. The method is mainly used for power networks or power distribution (electronic) equipment below 500V and below 600A.

The closed type fuse is divided into a fast fuse and a slow fuse at the breaking speed. The fast fuse is mainly used for short-circuit protection of a semiconductor rectifying element or a rectifying device, and the overload capability of the semiconductor element is low, so that the fast fuse can only bear large overload current in a very short time, and therefore the short-circuit protection is required to have the capability of fast fusing.

The slow speed fuse is also called a delay fuse, and the delay characteristic of the slow speed fuse is shown that the slow speed fuse is kept intact when a non-fault pulse current appears in a circuit, and can provide protection for long-time overload, namely, the protection for avoiding instantaneous misoperation when a surge current occurs.

The above-mentioned fusing protection technique is the solution measure that takes to a technical problem alone, and in many cases, distribution equipment can be in long-term high load state, and quick fuse and slow fuse all have the definite value inaccurate, and equipment is easy to burn or the condition that the frequent fusing of insurance influences the operation.

Accordingly, one skilled in the art would be able to provide a multi-purpose double-acting fuse assembly that solves the problems set forth in the background above.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a multipurpose double-acting fusing safety component which has a short-circuit protection function according to a preset overcurrent fusing value and can achieve the protection purpose when the overcurrent reaches a preset value through quick fusing.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a multi-purpose double-acting fusing insurance subassembly, includes the wire solder joint, wire solder joint one side is provided with the conducting seat, offer the wire welding groove in the conducting seat, be provided with first through wires hole in the conducting seat, conducting seat slot is fixed to conducting seat one side, conducting seat one side is provided with the insulating tube;

a heat sensing seat is arranged on one side of the insulating tube, a conducting rod welding point is arranged in the heat sensing seat, a conducting rod is arranged on the conducting rod welding point, and two threading holes are arranged in the heat sensing seat;

through the technical scheme, the position of one side of the heat sensing seat of the component is in the equipment temperature sensitive area, the heat sensing seat directly conducts temperature to the heat fusion Jin Yajie ring through the conducting rod, the temperature fusion value is calibrated according to the characteristics of the alloy material, if the conducted temperature reaches the fusion value, the heat fusion Jin Yajie ring is melted to break and separate the overcurrent fuse, and the purpose of one-time fusing is achieved. On the other hand, according to the preset overcurrent fusing value, the overcurrent fuse has a short-circuit protection function, and can be quickly fused to achieve the protection purpose when the passing current reaches the preset value.

Further, one side of the two threading holes is provided with a thermal fusion Jin Yajie ring;

through the technical scheme, the hot-melt alloy connecting ring is arranged to facilitate connection.

Further, one side of the thermal fusion Jin Yajie ring is provided with an overcurrent fuse;

through the technical scheme, the overcurrent fuse is arranged for protection.

Further, a crimping pipe is arranged on the overcurrent fuse;

through above-mentioned technical scheme, set up the crimping pipe and be convenient for connect.

Further, a wire is arranged on one side of the crimping tube;

through above-mentioned technical scheme, set up the wire and be convenient for connect.

Further, an insulating tube mounting groove is formed in one side of the heat sensing seat;

through above-mentioned technical scheme, set up the insulating mounting groove and be convenient for install and connect.

Further, a conducting rod welding groove is formed in the heat sensing seat;

through above-mentioned technical scheme, set up the conducting rod welding groove and be convenient for connect.

The utility model has the following beneficial effects:

1. the utility model provides a multipurpose double-acting fusing insurance component, wherein the position of one side of a thermal seat of the component is in a temperature sensitive area of equipment, the thermal seat directly conducts temperature to a thermal fusing Jin Yajie ring through a conducting rod, and the thermal fusing Jin Yajie ring is fused to break off an overcurrent fuse if the conducted temperature reaches the fusing value according to the characteristics of an alloy material, so that the purpose of one-time fusing is achieved, and on the other hand, the overcurrent fuse has a short-circuit protection function according to the preset overcurrent fusing value, and can be quickly fused to achieve the purpose of protecting when the passing current reaches a preset value.

2. The utility model provides a multipurpose double-acting fusing insurance component, which has the advantages that the working characteristics of the component are shown, the component is provided with two indexes of an overcurrent fusing current area (value) and a temperature limiting fusing area (value), in the phase of relatively high working current A, the actual temperature value A slowly rises and approaches to the temperature limiting fusing value (fusing time) along with the development of time, and finally, the thermal fusing of a hot-melting alloy crimping ring is carried out, so that a insurance loop is cut off. In another case, the normal working current B instantaneously rises to reach an overcurrent fusing value (fusing time) due to an emergency such as a short circuit, and finally the overcurrent fuse is fused to cut off the safety loop.

Drawings

FIG. 1 is a front cross-sectional view of an insulating tube of a multi-purpose double-acting fuse assembly according to the present utility model;

fig. 2 is a graph of a multi-purpose double-acting fuse assembly according to the present utility model.

Legend description:

1. conducting wire welding spots; 2. a wire welding groove; 3. a conductive base; 4. a first threading hole; 5. a conductive socket slot; 6. an insulating tube; 7. a wire; 8. a crimping tube; 9. an overcurrent fuse; 10. thermally fusing Jin Yajie ring; 11. an insulating tube mounting groove; 12. two threading holes; 13. a conductive rod; 14. a conductive rod welding spot; 15. a conductive rod welding groove; 16. a heat sensing seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, one embodiment provided by the present utility model is: a multi-purpose double-acting fusing insurance component comprises a wire welding spot 1, wherein a conductive seat 3 is arranged on one side of the wire welding spot 1, a wire welding groove 2 is formed in the conductive seat 3, a first threading hole 4 is formed in the conductive seat 3, a conductive seat slot 5 is fixedly arranged on one side of the conductive seat 3, and an insulating tube 6 is arranged on one side of the conductive seat 3;

a heat sensing seat 16 is arranged on one side of the insulating tube 6, a conducting rod welding spot 14 is arranged in the heat sensing seat 16, a conducting rod 13 is arranged on the conducting rod welding spot 14, two threading holes 12 are arranged in the heat sensing seat 16, the position of one side of the heat sensing seat of the component is in a temperature sensitive area of equipment, the heat sensing seat directly conducts temperature to a heat fusion Jin Yajie ring through the conducting rod, a temperature fusing value is calibrated according to the characteristics of the alloy material, if the conducted temperature reaches the fusing value, the heat fusion Jin Yajie ring is fused to break the overcurrent fuse, and the purpose of one-time fusing is achieved. On the other hand, according to the preset overcurrent fusing value, the overcurrent fuse has a short-circuit protection function, and can be quickly fused to achieve the protection purpose when the passing current reaches the preset value.

Two through wires hole 12 one side is provided with heat fusion Jin Yajie ring 10, sets up the hot melt alloy and connects the ring and be convenient for connect, and heat fusion Jin Yajie ring 10 one side is provided with overcurrent fuse 9, sets up overcurrent fuse and is convenient for protect, is provided with crimping pipe 8 on the overcurrent fuse 9, sets up crimping pipe and is convenient for connect, crimping pipe 8 one side is provided with wire 7, sets up the wire and is convenient for connect, and heat sensing seat 16 one side is provided with insulating tube mounting groove 11, sets up insulating mounting groove and is convenient for install and connect, has seted up conducting rod welding groove 15 in the heat sensing seat 16, sets up conducting rod welding groove and is convenient for connect.

Working principle: the assembly is a disposable product, and is fixedly connected with temperature sensitive parts of power distribution (electronic) equipment, such as a coil, an outer wall of a high-power heating device, a heat dissipation area and the like in a metal fastening mode, wherein the position of one side of a heat sensing seat 16 is in the temperature sensitive area, the heat sensing seat directly conducts temperature to a heat fusion Jin Yajie ring 10 through a conducting rod 13, a temperature fusing value is calibrated according to the characteristics of the alloy material, if the conducted temperature reaches the fusing value, the heat fusion Jin Yajie ring 10 is fused to break an overcurrent fuse 09, and the purpose of disposable fusing is achieved. On the other hand, according to the preset overcurrent fusing value, the overcurrent fuse 09 has a short-circuit protection function, and can be quickly fused to achieve the protection purpose when the passing current reaches the preset value

The manufacturing and assembling method comprises the following steps: the heat sensing seat 16 and the conductive seat 03 are machined or cast high-conductivity components at high power, and are punched and machined at low power. During assembly, the conducting rod 13 is inserted into the threading hole 12 of the heat sensing seat 16, the conducting rod 13 and the heat sensing seat 16 are welded together through the conducting rod welding groove 15 of the heat sensing seat 16, the overcurrent fuse 09 is fixed on the exposed end of the conducting rod 13 through the hot melt alloy crimping ring 10 in a cold pressing mode, and then the conducting wire 07 is connected with the overcurrent fuse 09 through the crimping pipe 08 in a cold pressing mode; coating adhesive in the insulating tube mounting groove 11 of the heat sensing seat 16, and inserting the pre-cut insulating tube into the groove; coating an adhesive on a conductive seat slot 05 on the conductive seat 03, and enabling a wire 07 to pass through the threading hole 04 so that the conductive seat 03 and the insulating tube 06 are inserted and bonded; and welding the wire 07 and the conductive seat 03 in the wire welding groove 02 of the conductive seat 03, and cutting off the redundant wire after the welding is finished to finish the processing process of the assembly.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. A multi-purpose double-acting fuse safety assembly comprising a wire bond pad (1), characterized in that: a conducting seat (3) is arranged on one side of the conducting wire welding point (1), a conducting wire welding groove (2) is formed in the conducting seat (3), a first threading hole (4) is formed in the conducting seat (3), a conducting seat slot (5) is fixedly formed in one side of the conducting seat (3), and an insulating tube (6) is arranged on one side of the conducting seat (3);

a heat sensing seat (16) is arranged on one side of the insulating tube (6), a conducting rod welding point (14) is arranged in the heat sensing seat (16), a conducting rod (13) is arranged on the conducting rod welding point (14), and two threading holes (12) are formed in the heat sensing seat (16);

one side of the two threading holes (12) is provided with a thermal fusion Jin Yajie ring (10), and one side of the thermal fusion Jin Yajie ring (10) is provided with an overcurrent fuse (9).

2. A multi-purpose double acting fuse cutout assembly in accordance with claim 1 wherein: the overcurrent fuse (9) is provided with a pressure connection pipe (8).

3. A multi-purpose double acting fuse cutout assembly in accordance with claim 2 wherein: one side of the crimping pipe (8) is provided with a lead (7).

4. A multi-purpose double acting fuse cutout assembly in accordance with claim 1 wherein: an insulating tube mounting groove (11) is formed in one side of the heat sensing seat (16).

5. A multi-purpose double acting fuse cutout assembly in accordance with claim 1 wherein: a conducting rod welding groove (15) is formed in the heat sensing seat (16).