CN219626546U - Novel temperature controller that outage reset and use circuit thereof - Google Patents

Abstract

The utility model relates to the technical field of temperature controllers, in particular to a novel power-off reset temperature controller and a using circuit thereof, which comprises an insulating bracket and an electric connecting sheet, wherein a first connecting terminal, a second connecting terminal, a deformed conducting sheet, a heating sheet and a fixed contact sheet are arranged on the insulating bracket, one end of the deformed conducting sheet is connected with the first connecting terminal, the other end of the deformed conducting sheet is connected with a moving contact, the fixed contact sheet is connected with a fixed contact, the moving contact is correspondingly arranged with the fixed contact, one end of the electric connecting sheet is connected with the heating sheet, the other end of the electric connecting sheet is correspondingly arranged with the moving contact, and the second connecting terminal is electrically connected with the heating sheet. The utility model has simple structure and is safer and more reliable.

Description

Novel temperature controller that outage reset and use circuit thereof

Technical Field

The utility model relates to the technical field of temperature controllers, in particular to a novel power-off reset temperature controller and a using circuit thereof.

Background

At present, a plurality of electric products use a temperature controller, and the temperature controller controls the opening and closing of the contacts by sensing the temperature of the electric products, so as to control the opening and closing of an electric heating circuit, thereby achieving the control and protection functions of the electric circuit.

The traditional mechanical temperature controller is generally manufactured by adopting the principle of thermal expansion and contraction of bimetallic strips, and is mainly used for heating electrical appliances which are fast in heating, and the working principle is as follows: when the temperature rises to a certain degree (when the temperature exceeds the temperature), the bimetallic strip deforms to enable the movable contact and the fixed contact to be in a separated state, the circuit is disconnected and no longer heated, and when the temperature drops to a certain degree, the bimetallic strip resets, so that the movable contact and the fixed contact are driven to be in a communicating state again, and the heating circuit continues to work. By adopting the structure, under the condition that the fault is not removed, the temperature of the bimetallic strip repeatedly rises and falls, so that the temperature controller is repeatedly disconnected and connected, and the potential safety hazard exists.

In order to effectively solve the technical problem, a great deal of research and study is made in the industry, for example, a Chinese patent with publication number of CN206774450U discloses a temperature controller with power-off reset (hereinafter referred to as the existing temperature controller 10), see fig. 1, which comprises a ceramic column 1, a fixed contact piece 2, a connecting terminal 6 and a bimetallic strip 4, wherein the fixed contact piece 2 and the connecting terminal 6 are fixedly connected through an insulating ceramic column 1, external circuit connecting holes are respectively arranged on the fixed contact piece 2 and the connecting terminal 6 and are connected with an external circuit (see fig. 2 in particular), one end of the bimetallic strip 4 is fixedly connected with the connecting terminal 6, the other end of the bimetallic strip 6 is provided with a movable contact 5, the PTC chip 8 and the fixed contact 7 are electrically connected with the bimetallic strip 4 by adopting the metal strip 4, the temperature sensing is sensitive, the temperature control precision is high, the PTC chip 8 and the fixed contact 7 are fixedly arranged on the fixed contact piece 2, and the movable contact 5 and the fixed contact 7 are correspondingly arranged, and when the movable contact 5 and the fixed contact 7 are closed, the fixed contact piece 2, the fixed contact piece 7, the movable contact piece 7, the bimetallic strip 4 and the connecting terminal 6 form a loop, and the PTC loop when the movable contact 5 and the fixed contact 7 are disconnected.

The above-mentioned prior art has solved traditional mechanical temperature controller effectively and has had technical problem, see in particular fig. 2, general condition, current temperature controller 10, electrical equipment's heating device 20 and attemperator 30 are established ties in the circuit, under normal operating condition, moving contact 5 and static contact 7 are closed, fixed contact 2, static contact 7, moving contact 5, bimetallic strip 4 and binding post 6 constitute the return circuit, at this moment, electric current does not pass through PTC chip 8, current temperature controller 10 does not play the guard action to electrical equipment's heating device 20, when electrical equipment's heating device 20 temperature is too high, after current temperature controller 10's bimetallic strip 4 warp, moving contact 5 and static contact 7 break, fixed contact 2, PTC chip 8, bimetallic strip 4 and binding post 6 constitute the PTC return circuit, at this moment, PTC chip 8 works, form the protection to electrical equipment's heating device 20. However, the existing temperature controller 10 still has defects and drawbacks, when other devices in the circuits such as the temperature adjusting device 30 are not manually turned off, the existing temperature controller 10 will also reset under the condition that the heating device 20 of the electrical device is not fault-free, and a certain safety risk exists, so that the prior art still has a large room for improvement.

Disclosure of Invention

Aiming at the problems, the utility model provides a novel power-off reset temperature controller which can effectively change the structure of the existing circuit, and more mainly solves the problem that the circuit is reset due to non-manual disconnection, thereby greatly improving the safety performance.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model relates to a novel power-off reset temperature controller which comprises an insulating support and an electric connecting sheet, wherein a first connecting terminal, a second connecting terminal, a deformation conducting strip, a heating sheet and a fixed contact sheet are arranged on the insulating support, one end of the deformation conducting strip is connected with the first connecting terminal, the other end of the deformation conducting strip is connected with a moving contact, a fixed contact is connected with the fixed contact, the moving contact is correspondingly arranged with the fixed contact, one end of the electric connecting sheet is connected with the heating sheet, the other end of the electric connecting sheet is correspondingly arranged with the moving contact, and the second connecting terminal is electrically connected with the heating sheet.

According to the technical scheme, the deformation conducting strip comprises a metal spring plate and a temperature sensing deformation sheet which are overlapped up and down, one end of the metal spring plate is connected with the first wiring terminal, and the other end of the metal spring plate is connected with the movable contact.

According to the technical scheme, the heating sheet is a PTC chip or a resistance sheet.

According to the technical scheme, the insulating support is a ceramic support.

According to the technical scheme, the insulating support is provided with the heating sheet installation position.

The utility model provides a novel use circuit of temperature controller that outage reset, includes temperature controller, heating device and attemperator, the input of heating device is connected to the fixed contact electricity of temperature controller, and attemperator input is connected to heating device's output electricity, and attemperator's output electricity is connected first binding post and is constituteed closed loop; the second wiring terminal is electrically connected with the output end of the temperature adjusting device.

The utility model has the beneficial effects that:

the utility model adopts a structure which is completely different from the prior art, and is respectively provided with a first wiring terminal, a second wiring terminal and a fixed contact piece, so that when the movable contact and the fixed contact are closed, the first wiring terminal and the fixed contact piece are communicated and form a loop with an external circuit, and at the moment, the temperature controller does not protect a heating device of electrical equipment; when the temperature of the heating device of the electrical equipment is too high, the moving contact is disconnected from the fixed contact after the deformation conductive sheet of the temperature controller is deformed, the moving contact is connected with the electric connecting sheet, the first wiring terminal, the heating sheet and the second wiring terminal are communicated, at the moment, the heating sheet works to protect the heating device of the electrical equipment, in this state, the heating sheet continuously heats, and the deformation conductive sheet is always in a processing deformation state, so that the deformation conductive sheet cannot be reset, and only after artificial power failure, the deformation conductive sheet can be reset under the condition that no current exists in the temperature controller.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic diagram of a prior art circuit connection;

FIG. 3 is a schematic diagram of the structure of the present utility model;

fig. 4 is a schematic diagram of the circuit connection of the present utility model.

1. A ceramic column; 2. a fixed contact; 4. bimetallic strips; 5. a moving contact; 6. a connection terminal; 7. a stationary contact; PTC chip; 10. an existing temperature controller; 11. an insulating support; 12. a first connection terminal; 13. a metal spring plate; 14. a temperature-sensing deformation sheet; 15. a stationary contact; 16. an electrical connection piece; 17. a heat generating sheet; 18. a second connection terminal; 19. a fixed contact; 20. a stationary contact; 30. a temperature adjusting device; 100.

a temperature controller; 131. and a moving contact.

Detailed Description

The technical scheme of the utility model is described below with reference to the accompanying drawings and examples.

As shown in fig. 3 to 4, the novel power-off reset temperature controller comprises an insulation support 11 and an electric connection sheet 16, wherein a first wiring terminal 12, a second wiring terminal 18, a deformation conducting sheet, a heating sheet 17 and a fixed contact sheet 19 are arranged on the insulation support 11, one end of the deformation conducting sheet is connected with the first wiring terminal 12, the other end of the deformation conducting sheet is connected with a movable contact 131, a fixed contact 15 is connected on the fixed contact sheet 19, the movable contact 131 is correspondingly arranged with the fixed contact 15, one end of the electric connection sheet 16 is connected with the heating sheet 17, the other end of the electric connection sheet 16 is correspondingly arranged with the movable contact 131, and the second wiring terminal 18 is electrically connected with the heating sheet 17.

The specific working principle is combined with fig. 4, the using circuit of the novel power-off reset temperature controller comprises a temperature controller 100, a heating device 20 and a temperature regulating device 30, wherein a fixed contact piece 19 of the temperature controller 100 is electrically connected with the input end of the heating device 20, the output end of the heating device 20 is electrically connected with the input end of the temperature regulating device 30, and the output end of the temperature regulating device 30 is electrically connected with a first wiring terminal 12 to form a closed loop; the second connection terminal 18 is electrically connected to the output of the temperature control device 30.

When the movable contact 131 and the fixed contact 15 are closed in a normal state, the first connecting terminal 12 is communicated with the fixed contact 19 and forms a loop with the heating device 20, the temperature adjusting device 30 and other equipment, and at the moment, current does not pass through the heating piece 17, and the temperature controller 100 does not protect the heating device 20 of the electrical equipment; when the temperature of the heating device 20 of the electrical equipment is too high, after the deformation conductive sheet of the temperature controller 100 is deformed, the moving contact 131 is disconnected with the fixed contact 15, the moving contact 131 is connected with the electric connection sheet 16, at the moment, the first wiring terminal 12, the heating sheet 17 and the second wiring terminal 18 are communicated, the heating sheet 17 works to protect the heating device 20 of the electrical equipment, the first wiring terminal 12 and the second wiring terminal 18 form a return, the heating sheet 17 continuously heats, in this state, the deformation conductive sheet is always in a processing deformation state, so that the deformation conductive sheet cannot be reset, and only after the artificial power failure and effective fault elimination, the deformation conductive sheet can be reset under the condition that no current exists in the temperature controller 100, so that the safety performance is greatly improved.

More specifically, the deformation conductive sheet includes a metal spring sheet 13 and a temperature-sensing deformation sheet 14 that are stacked up and down, one end of the metal spring sheet 13 is connected to the first connection terminal 12, and the other end of the metal spring sheet 13 is connected to the movable contact 131. The deformation conductive sheet is arranged in a double-layer manner, wherein the metal spring sheet 13 mainly plays a role in conducting electricity and can be made of a metal material with a smaller resistance value, the temperature sensing deformation sheet 14 mainly plays a role in deformation, a driving force is provided, and the technical purpose of disconnecting the movable contact 131 from the fixed contact 15 is achieved.

The heating sheet 17 is a PTC chip or a resistor sheet, and the technical purpose can be achieved only by a material which has a large resistance and can conduct electricity.

The insulating support 11 is a ceramic support, and of course, insulating plastics and the like can also be used for realizing the supporting function and effectively insulating.

The insulating bracket 11 is provided with a heating sheet 17 mounting position, so that the arrangement structure can be effectively compact.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are all within the scope of the present utility model.

Claims (6)

1. The utility model provides a novel temperature controller that outage reset, includes insulating support (11) and electric connection piece (16), its characterized in that: be equipped with first binding post (12), second binding post (18), deformation conducting strip, generate heat piece (17) and decide contact (19) on insulating support (11), first binding post (12) are connected to deformation conducting strip one end, and the deformation conducting strip other end is connected with moving contact (131), be connected with stationary contact (15) on deciding contact (19), moving contact (131) correspond the setting with stationary contact (15), generate heat piece (17) are connected to electric connection piece (16) one end, and electric connection piece (16) other end corresponds the setting with moving contact (131), second binding post (18) electricity is connected and is generated heat piece (17).

2. The novel power-off reset temperature controller according to claim 1, wherein the deformation conducting strip comprises a metal spring plate (13) and a temperature sensing deformation sheet (14) which are overlapped up and down, one end of the metal spring plate (13) is connected with the first wiring terminal (12), and the other end of the metal spring plate (13) is connected with the movable contact (131).

3. A novel power-off reset thermostat according to claim 1, characterized in that the heating plate (17) is a PTC chip or a resistor plate.

4. A novel power-off reset thermostat according to claim 1, characterized in that the insulating support (11) is a ceramic support.

5. A novel power-off reset temperature controller according to claim 3, wherein the insulating bracket (11) is provided with a heating sheet (17) mounting position.

6. A use circuit comprising the novel power-off reset temperature controller (100) as claimed in claim 1, and further comprising a heating device (20) and a temperature regulating device (30), wherein a fixed contact piece (19) of the temperature controller (100) is electrically connected with the input end of the heating device (20), the output end of the heating device (20) is electrically connected with the input end of the temperature regulating device (30), and the output end of the temperature regulating device (30) is electrically connected with a first wiring terminal (12) to form a closed loop; the second connecting terminal (18) is electrically connected with the output end of the temperature regulating device (30).