CN219286319U

CN219286319U - Self-resetting overcurrent and overheat protector

Info

Publication number: CN219286319U
Application number: CN202223553214.0U
Authority: CN
Inventors: 杨长山; 盛维雁
Original assignee: JIANGSU ENGFEE ELECTRIC APPLIANCE TECHNOLOGY CO LTD
Current assignee: JIANGSU ENGFEE ELECTRIC APPLIANCE TECHNOLOGY CO LTD
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-30
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a self-resetting overcurrent and overtemperature protector, which relates to the field of safety protection devices and comprises a protector body, wherein a connecting pipe is fixedly connected to the top end of the protector body, two square pipes are arranged in the protector body and are communicated with the connecting pipe, a movable assembly is arranged in the protector body, and the movable assembly comprises a cylindrical block which is slidably connected in the protector body. According to the utility model, when the protector flows excessively, the cylindrical block and the connecting rod in the moving assembly are stressed to vertically move downwards to drive the connecting rod to vertically move, so that the induction contact and the connecting contact are mutually separated, the function of power-off protection is realized, and when the temperature sensor in the cylindrical block receives the excessive temperature, the temperature receiver receives the electric signal to drive the electromagnetic arc block to attract the induction contact, so that the induction contact and the connecting contact are mutually separated, and the function of power-off protection is realized.

Description

Self-resetting overcurrent and overheat protector

Technical Field

The utility model relates to the field of safety protection devices, in particular to a self-resetting overcurrent and overtemperature protector.

Background

In the current transformer protection mechanism, various overcurrent and overheat protection methods are adopted, for example, oil is often protected by gas, and a current controller or an intelligent temperature control meter is adopted in the process of drying, so that at present, all the electric safety protection devices are temperature controller products. The product is characterized in that the temperature rise of an electric appliance is too high under abnormal working conditions such as overload short circuit of a load, heat is conducted to a thermosensitive element by air, then the thermosensitive element expands and the arch pushes a reed to drive a fixed contact to start, a power supply is cut off, an overcurrent controller controls the overload of the flow, the manufacturing cost is high, and the two devices need to operate simultaneously to realize the overcurrent and overheat protection function.

After the existing overcurrent and overheat protectors protect the overcurrent and overheat, manual operation is usually required to reset the protectors, and the work efficiency is not improved.

Therefore, it is necessary to invent a self-resetting overcurrent and overcurrent protector to solve the above-mentioned problems.

Disclosure of Invention

The present utility model is directed to a self-resetting overcurrent and overcurrent protector, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the self-resetting overcurrent and overtemperature protector comprises a protector body, wherein a connecting pipe is fixedly connected to the top end of the protector body, and two square pipes are arranged in the protector body and are communicated with the connecting pipe;

the protector comprises a protector body, and is characterized in that a moving assembly is arranged in the protector body and comprises a cylindrical block, the cylindrical block is slidably connected in the protector body, a temperature sensor is arranged in the cylindrical block, a connecting rod is fixedly connected to the outside of the cylindrical block, a moving rod is fixedly connected to the bottom end of the connecting rod, and sensing contacts are fixedly connected to the two ends of the moving rod;

the bottom of movable rod is provided with reset subassembly, reset subassembly includes the movable plate, movable plate fixed connection is in the bottom of movable rod, the bottom fixedly connected with of movable plate two second dead levers.

Preferably, two temperature receivers are arranged on two sides of the inner wall of the protector body, electromagnetic arc blocks are fixedly connected to two opposite sides of the temperature receivers, a first fixing rod is arranged at the top of the temperature receivers and fixedly connected to the inside of the protector body, and a connecting contact is fixedly connected to one side, close to the sensing contact, of the first fixing rod.

Preferably, the bottom of protector body is provided with two connecting seats, the inside fixedly connected with base of protector body, the equal fixedly connected with second fixed block in both sides at base top.

Preferably, the second spring is fixedly connected to the inside of the second fixed block, the second moving block is slidably connected to the inside of the second fixed block, and the bottom of the second moving block is fixedly connected with one end of the second spring.

Preferably, one side of the bottom of the second fixing rod is fixedly connected with one side of the second moving block away from the second fixing block.

Preferably, the middle part fixedly connected with first fixed block on base top, the inside sliding connection of first fixed block has two first movable blocks, the bottom fixedly connected with first spring of first movable block, first spring fixed connection is in the inside of first fixed block.

Preferably, one side of the second fixed rod, which is close to the first fixed block, is rotationally connected with a hinge rod, and one end of the hinge rod, which is far away from the second fixed rod, is rotationally connected with the outside of the first movable block.

The utility model has the technical effects and advantages that:

1. according to the utility model, the moving assembly is arranged, the cylindrical block in the moving assembly is matched with the connecting rod, when the protector overflows, the cylindrical block is stressed to vertically move downwards to drive the connecting rod to vertically move, the sensing contact and the connecting contact are mutually separated, the function of power-off protection is realized, when the temperature sensor in the cylindrical block receives the overhigh temperature, the temperature sensor receives the overhigh temperature, the electromagnetic arc block is driven to attract the sensing contact, so that the sensing contact and the connecting contact are mutually separated, and the function of power-off protection is realized.

2. The utility model is provided with the reset component, after power-off protection, the reset processing is carried out on the flow and the temperature recovery initial value, if the flow is recovered or the temperature is recovered, the plurality of groups of springs drive the movable plate to vertically move, and the movable plate can drive the movable rod to reset, so that the inductive contact and the connecting contact are mutually attached, manual control is avoided through an artificial mode, and the automatic reset effect is realized.

Drawings

FIG. 1 is a schematic diagram of an overcurrent and overtemperature protector according to the utility model.

Fig. 2 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

Fig. 3 is a schematic diagram of a reset assembly according to the present utility model.

In the figure: 1. a protector body; 2. a connecting pipe; 3. square tube; 4. a cylindrical block; 5. a temperature sensor; 6. a connecting rod; 7. a moving rod; 8. a sensing contact; 9. a connection contact; 10. a first fixing rod; 11. a temperature receiver; 12. an electromagnetic arc block; 13. a moving plate; 14. a second fixing rod; 1401. a second moving block; 1402. a second spring; 15. a hinge rod; 16. a first moving block; 1601. a first spring; 17. a first fixed block; 18. a second fixed block; 19. a base; 20. and a connecting 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.

The utility model provides a self-resetting overcurrent and overtemperature protector as shown in figures 1-3, which comprises a protector body 1, wherein a connecting pipe 2 is fixedly connected to the top end of the protector body 1, and two square pipes 3 are arranged in the protector body 1 and are communicated with the connecting pipe 2;

the inside of the protector body 1 is provided with a moving assembly, the moving assembly comprises a cylindrical block 4, the cylindrical block 4 is slidably connected in the inside of the protector body 1, a temperature sensor 5 is arranged in the cylindrical block 4, a connecting rod 6 is fixedly connected to the outside of the cylindrical block 4, a moving rod 7 is fixedly connected to the bottom end of the connecting rod 6, and sensing contacts 8 are fixedly connected to two ends of the moving rod 7;

according to the utility model, the moving assembly is arranged, the cylindrical block 4 in the moving assembly is matched with the connecting rod 6, when the protector body 1 overflows, the cylindrical block 4 is stressed to vertically move downwards to drive the connecting rod 6 to vertically move, the sensing contact 8 and the connecting contact 9 are mutually separated, the power-off protection effect is realized, and when the temperature sensor 5 in the cylindrical block 4 receives the overhigh temperature, the temperature receiver 11 receives the electric signal to drive the electromagnetic arc block 12 to attract the sensing contact 8, so that the sensing contact 8 and the connecting contact 9 are mutually separated, and the power-off protection effect is realized.

Two temperature receivers 11 are arranged on two sides of the inner wall of the protector body 1, electromagnetic arc blocks 12 are fixedly connected to one sides of the two temperature receivers 11, which are opposite, a first fixing rod 10 is arranged at the top of each temperature receiver 11, the first fixing rod 10 is fixedly connected to the inside of the protector body 1, and a connecting contact 9 is fixedly connected to one side, close to the sensing contact 8, of each first fixing rod 10.

Further, through moving the power-off protection that the subassembly overflowed the heat to the device, specifically, after internal flow is too big, cylinder piece 4 atress carries out perpendicular downward movement, and connecting rod 6 follows cylinder piece 4 and carries out perpendicular downward movement, and movable rod 7 follows cylinder piece 4 and carries out perpendicular downward movement, and sensing contact 8 and connecting contact 9 mutually separate realize power-off protection's effect.

The bottom of movable rod 7 is provided with reset assembly, reset assembly includes movable plate 13, movable plate 13 fixed connection is in the bottom of movable rod 7, the bottom fixedly connected with of movable plate 13 two second dead levers 14, the bottom of protector body 1 is provided with two connecting seats 20, the inside fixedly connected with base 19 of protector body 1, the equal fixedly connected with second fixed block 18 in both sides at base 19 top, the inside fixedly connected with second spring 1402 of second fixed block 18, one side of second dead lever 14 bottom and one side fixed connection of second movable block 1401 that second movable block 1401 kept away from second fixed block 18, the inside sliding connection of second fixed block 18 has second movable block 1401, the bottom of second movable block 1401 and one end fixed connection of second spring 1402, the middle part fixedly connected with first fixed block 17 on base 19 top, the inside sliding connection of first fixed block 17 has two first movable blocks 16, the bottom fixedly connected with first spring 1601 of first movable block 16, first spring 1601 fixed connection is in the inside of first fixed block 17, the inside of second fixed block 14 is close to first movable block 17 one side of articulated lever 15 and the outside articulated lever 15 of first fixed block 17, the articulated lever 15 of second movable block 14 is kept away from.

The utility model is provided with the reset component, after power-off protection, the flow and the temperature recovery initial value are waited for reset treatment, if the flow is recovered or the temperature is recovered, the plurality of groups of springs drive the movable plate 13 to vertically move, and the movable plate 13 can drive the movable rod 7 to reset, so that the inductive contact 8 and the connecting contact 9 are mutually attached, manual control is avoided through an artificial mode, and the automatic reset effect is realized.

Claims

1. A self-resetting overcurrent and overtemperature protector comprising a protector body (1), characterized in that: the top end of the protector body (1) is fixedly connected with a connecting pipe (2), and two square pipes (3) are arranged in the protector body (1) and are communicated with the connecting pipe (2);

the protector comprises a protector body (1), and is characterized in that a moving assembly is arranged in the protector body (1), the moving assembly comprises a cylindrical block (4), the cylindrical block (4) is slidably connected in the protector body (1), a temperature sensor (5) is arranged in the cylindrical block (4), a connecting rod (6) is fixedly connected to the outside of the cylindrical block (4), a moving rod (7) is fixedly connected to the bottom end of the connecting rod (6), and induction contacts (8) are fixedly connected to the two ends of the moving rod (7);

the bottom of movable rod (7) is provided with reset subassembly, reset subassembly includes movable plate (13), movable plate (13) fixed connection is in the bottom of movable rod (7), the bottom fixedly connected with of movable plate (13) two second dead levers (14).

2. A self-resetting overcurrent and overcurrent protector as set forth in claim 1 wherein: two temperature receivers (11) are arranged on two sides of the inner wall of the protector body (1), electromagnetic arc blocks (12) are fixedly connected to two opposite sides of the temperature receivers (11), a first fixing rod (10) is arranged at the top of each temperature receiver (11), the first fixing rod (10) is fixedly connected to the inside of the protector body (1), and a connecting contact (9) is fixedly connected to one side, close to the sensing contact (8), of each first fixing rod (10).

3. A self-resetting overcurrent and overcurrent protector as set forth in claim 1 wherein: the bottom of protector body (1) is provided with two connecting seats (20), the inside fixedly connected with base (19) of protector body (1), the both sides at base (19) top are all fixedly connected with second fixed block (18).

4. A self-resetting overcurrent and overcurrent protector as set forth in claim 3 wherein: the inside fixedly connected with second spring (1402) of second fixed block (18), the inside sliding connection of second fixed block (18) has second movable block (1401), the bottom of second movable block (1401) is connected with one end fixed of second spring (1402).

5. A self-resetting overcurrent and overcurrent protector as set forth in claim 1 wherein: one side of the bottom of the second fixed rod (14) is fixedly connected with one side of the second moving block (1401) far away from the second fixed block (18).

6. A self-resetting overcurrent and overcurrent protector as set forth in claim 3 wherein: the middle part fixedly connected with first fixed block (17) on base (19) top, the inside sliding connection of first fixed block (17) has two first movable blocks (16), the bottom fixedly connected with first spring (1601) of first movable block (16), first spring (1601) fixed connection is in the inside of first fixed block (17).

7. A self-resetting overcurrent and overcurrent protector as set forth in claim 1 wherein: one side of the second fixed rod (14) close to the first fixed block (17) is rotatably connected with a hinging rod (15), and one end of the hinging rod (15) far away from the second fixed rod (14) is rotatably connected with the outside of the first movable block (16).