CN217955753U

CN217955753U - Heat dissipation formula heat protector

Info

Publication number: CN217955753U
Application number: CN202222392421.6U
Authority: CN
Inventors: 朱胜亮; 赵祥宏; 苗荣
Original assignee: Jiangsu Yitong Control System Co ltd
Current assignee: Jiangsu Yitong Control System Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-02
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a heat dissipation type thermal protector, which comprises a shell, wherein a plug is embedded in one side of the shell, a rectangular groove is arranged at the bottom of the shell, a conducting strip is arranged in the rectangular groove, and a bimetallic strip is arranged on the inner wall of the shell; one end of the bimetallic strip is jointed with one end of the plug, a contact strip is fixedly connected inside the shell, and the bottom of the contact strip is jointed with the top of the conducting strip; the utility model discloses during the use, when external circuit or electrical equipment circuit appear the load, the high temperature electric current of production is acted on in the bimetallic strip, make the bimetallic strip be heated and take place deformation, and then break away from the tie point with the plug laminating, make the circuit disconnection, this in-process, the insulating layer can prevent by polytetrafluoroethylene that the circuit from causing the melting and the phenomenon of catching fire to the shell in the twinkling of an eye high temperature, and the gas cell that lies in under the high temperature between bimetallic strip and the contact piece breaks, inside the carbon dioxide diffusion of filling is inside the shell, avoid the inside naked light of shell to take place effectively.

Description

Heat dissipation type thermal protector

Technical Field

The utility model relates to a hot protector technical field specifically is a heat dissipation formula hot protector.

Background

As is well known, a thermal protector is a temperature controller in which two different alloys are combined together, and a bimetal is used as a temperature sensing element. When the temperature is reduced to the set temperature, the contact is automatically closed/opened, and the normal working state is recovered. The motor can be widely used for household electric appliances and electric equipment, such as washing machine motors, air conditioner fan motors, transformers, ballasts, electric heating appliances and the like.

However, current thermal protector still has certain problem, its current thermal protector is structural comparatively simple, thereby it forms the thermal protector main part to be usually at thermal protector shell internally mounted conducting strip cooperation bimetallic strip, install this main part in electrical equipment and external circuit, and the thermal protector of this structure is in the in-service use in-process, high temperature instantaneous temperature because circuit load causes can produce the high temperature more than 200, and the temperature is difficult to in time dispel, can cause to melt phenomenon or production naked light to the shell, though the outage problem can be solved, still have certain fire hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat dissipation formula heat protector to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a heat dissipation type thermal protector comprises a shell, wherein a plug is embedded in one side of the shell, a rectangular groove is formed in the bottom of the shell, a conducting strip is arranged in the rectangular groove, and a bimetallic strip is arranged on the inner wall of the shell; one end of the bimetallic strip is attached to one end of the plug, a contact strip is fixedly connected to the inside of the shell, the bottom of the contact strip is attached to the top of the conductive strip, the top of the contact strip is attached to the bottom of the bimetallic strip, a heat insulation layer is fixedly connected to the inner wall of the shell, an inflatable bag is bonded to the inner wall of the shell, and carbon dioxide gas is filled in the inflatable bag.

Preferably, the connecting plates are arranged on two sides of the shell, and bolts penetrate through the connecting plates.

Preferably, an insulating sleeve is mounted on the outside of the plug, and one side of the insulating sleeve is bonded to the outside of the housing.

Preferably, two L-shaped plates are symmetrically installed at the bottom of the housing, and two sides of the conductive plate are located inside the L-shaped plates.

Preferably, the material of the thermal insulation layer is polytetrafluoroethylene.

Preferably, the material of the inflatable bag is ethylene propylene diene monomer.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses during the use, when load or short circuit appear in the circuit, the high temperature electric current that produces is acted on in the bimetallic strip, makes the bimetallic strip be heated and takes place deformation, and then breaks away from the tie point with the plug laminating, makes the circuit disconnection, and in this process, the insulating layer can prevent that the circuit high temperature from causing melting and the phenomenon of catching fire to the shell in the twinkling of an eye to the gas cell breaks, and inside the carbon dioxide diffusion of inside packing to the shell is inside, dispels the heat fast to shell and internals, makes the utility model discloses can avoid the naked light that high temperature caused in the twinkling of an eye to produce when the high load carries out the outage to avoided the temperature to last too high phenomenon effectively.

Drawings

Fig. 1 is a schematic structural view of a heat dissipation type thermal protector of the present invention;

fig. 2 is a schematic cross-sectional view of the housing of the heat dissipation type thermal protector of the present invention;

fig. 3 is another schematic view of the cross-sectional structure of the casing of the heat dissipation type thermal protector of the present invention;

fig. 4 is a schematic structural view of the air bag in the heat dissipation type thermal protector of the present invention.

In the figure: 1. a connecting plate; 2. a bolt; 3. a housing; 4. a plug; 5. an insulating sleeve; 6. a thermal insulation layer; 7. an air-filled bag; 8. a bimetal; 9. a contact sheet; 10. a conductive sheet; 11. an L-shaped plate; 12. a rectangular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention provides a heat-dissipating thermal protector, including: a housing 3, a plug 4, a bimetal 8 and a conductive plate 10.

Wherein, one side of the outer casing 3 is embedded with the plug 4, the bottom of the outer casing 3 is provided with a rectangular groove 12, the rectangular groove 12 is internally provided with a conducting strip 10, and the inner wall of the outer casing 3 is provided with a bimetallic strip 8; one end of the bimetallic strip 8 is attached to one end of the plug 4, the contact strip 9 is fixedly connected to the inside of the shell 3, the bottom of the contact strip 9 is attached to the top of the conductive strip 10, the top of the contact strip 9 is attached to the bottom of the bimetallic strip 8, when the plug is used, an external circuit is connected through the plug 4, the conductive strip 10 at the bottom of the shell 3 is installed in an electrical equipment circuit needing to be electrified, when the external circuit or the electrical equipment circuit has a load, the generated high-temperature current acts on the bimetallic strip 8, the bimetallic strip 8 is heated and deformed, and then the bimetallic strip is separated from a connection point attached to the plug 4, so that the circuit is disconnected;

wherein, the inner wall fixedly connected with insulating layer 6 of shell 3, the material of insulating layer 6 is polytetrafluoroethylene, the inner wall of shell 3 bonds and has gas cell 7, the inside packing of gas cell 7 has carbon dioxide gas, the material of gas cell 7 is ethylene propylene diene monomer, the heat protector is when the high temperature outage, insulating layer 6 can prevent that the circuit from causing melting and catching fire phenomenon to shell 3 in the twinkling of an eye high temperature, and gas cell 7 that lies in between bimetallic strip 8 and the contact piece 9 under high temperature breaks, inside carbon dioxide diffusion of filling is inside shell 3, avoid the inside naked light of shell 3 to take place effectively, and dispel the heat fast to shell 3 and internals.

Wherein, the two sides of the shell 3 are both provided with connecting plates 1, bolts 2 penetrate through the connecting plates 1, and the shell 3 can be fixed on electrical equipment through the connecting plates 1 and the bolts 2; an insulating sleeve 5 is arranged outside the plug 4, one side of the insulating sleeve 5 is bonded outside the shell 3, and the insulating sleeve 5 can prevent electric leakage from diffusing to the shell 3 when the plug 4 is connected with an external circuit; two L-shaped plates 11 are symmetrically installed at the bottom of the housing 3, two sides of the conducting plate 10 are located inside the L-shaped plates 11, and the L-shaped plates 11 can limit the position of the conducting plate 10.

According to the technical scheme, the working steps of the scheme are summarized and carded: the utility model discloses during the use, switch on external circuit through

plug

4, 10 series installations of conducting strip of shell 3 bottom are in the electrical equipment circuit that needs the circular telegram to use, when load appears in external circuit or electrical equipment circuit, the high temperature electric current that produces acts on in bimetallic strip 8, make bimetallic strip 8 be heated and take place deformation, and then break away from the tie point with the laminating of plug 4, make the circuit disconnection, in this process, insulating layer 6 comprises polytetrafluoroethylene, can prevent that the circuit high temperature from causing melting and the phenomenon of catching fire to shell 3 in the twinkling of an eye, and lie in the gas cell 7 between bimetallic strip 8 and contact piece 9 and break under high temperature, inside carbon dioxide diffusion of inside packing is inside shell 3, avoid shell 3 inside naked light to take place effectively, and dispel the heat fast to shell 3 and internal part, make the utility model discloses the naked light that high temperature caused in the twinkling of an eye has been avoided when the high load cuts off the power supply, and avoided the phenomenon that the temperature lasts too high effectively.

The utility model discloses in not relate to the part all the same with prior art or can adopt prior art to realize. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a heat dissipation formula thermal protector, includes shell (3), one side of shell (3) is inlayed and is equipped with plug (4), the bottom of shell (3) is equipped with rectangular channel (12), be equipped with conducting strip (10) in rectangular channel (12), bimetallic strip (8), its characterized in that are installed to the inner wall of shell (3):

the one end of bimetallic strip (8) with the one end of plug (4) is laminated mutually, the inside fixedly connected with contact piece (9) of shell (3), the bottom of contact piece (9) with the top of conducting strip (10) is laminated mutually, the top of contact piece (9) with the bottom of bimetallic strip (8) is laminated mutually, the inner wall fixedly connected with insulating layer (6) of shell (3), the inner wall of shell (3) bonds and has gas cell (7), the inside packing of gas cell (7) has carbon dioxide gas.

2. A heat dissipating thermal protector according to claim 1 in which: connecting plates (1) are installed on two sides of the shell (3), and bolts (2) penetrate through the connecting plates (1).

3. A heat dissipating thermal protector according to claim 1 in which: an insulating sleeve (5) is mounted outside the plug (4), and one side of the insulating sleeve (5) is bonded outside the shell (3).

4. A heat dissipating thermal protector according to claim 1 in which: two L-shaped plates (11) are symmetrically installed at the bottom of the shell (3), and two sides of the conducting plate (10) are located inside the L-shaped plates (11).

5. A heat dissipating thermal protector according to claim 1 in which: the heat insulation layer (6) is made of polytetrafluoroethylene.

6. A heat dissipating thermal protector according to claim 1 in which: the material of the inflatable bag (7) is ethylene propylene diene monomer.