CN219203041U

CN219203041U - Automatic temperature sensing type temperature regulating switch

Info

Publication number: CN219203041U
Application number: CN202223134144.5U
Authority: CN
Inventors: 汪文瀚; 汪兆龙
Original assignee: Yangzhou Baozhu Electric Appliance Co ltd
Current assignee: Yangzhou Baozhu Electric Appliance Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-06-16
Anticipated expiration: 2032-11-25

Abstract

The utility model relates to an automatic temperature-sensing type temperature regulating switch, which comprises a bottom plate and a base, wherein the bottom plate is connected with the base, a gasket is arranged between the bottom plate and the base, the gasket separates a space between the bottom plate and the base into a first space and a second space, and a first wiring lug and a second wiring lug are arranged on the outer side of the base; a bimetallic strip and a contact strip are arranged in the second space, one end of the bimetallic strip is provided with a movable contact, the contact strip is provided with a fixed contact matched with the movable contact, the other end of the bimetallic strip is connected with a first wiring strip, the contact strip is connected with a second wiring strip, a heating body and a thermistor are fixed on a gasket, one end of the heating body is contacted with the bimetallic strip, the other end of the heating body is fixed on the gasket, one end of the thermistor is connected with the heating body, the other end of the thermistor is positioned in the first space, and a vent hole communicated with the first space is arranged on a bottom plate; the base plate or the base is provided with a wiring terminal, and one end of the thermistor, which is positioned in the first space, is connected with the wiring terminal. The temperature regulating switch has a relatively simple structure.

Description

Automatic temperature sensing type temperature regulating switch

Technical Field

The utility model relates to the technical field of temperature control devices, in particular to an automatic temperature sensing type temperature regulating switch.

Background

The temperature regulating switch is a common electrical element, after the existing temperature regulating switch is connected with the heating element, when the ambient temperature of the heating element rises to the high temperature threshold value of the temperature regulating switch, the circuit is disconnected by the action of the temperature regulating switch, and when the ambient temperature of the heating element falls to the low temperature threshold value, the circuit is communicated by the action of the temperature regulating switch again, so that the temperature is controlled to be close to the preset temperature of people in a certain range in a reciprocating manner, the temperature control of the temperature regulating switch is realized through components such as a chip control relay, and the like, the structure is complex, and the miniaturization of the temperature regulating switch is not facilitated.

Disclosure of Invention

The utility model aims to provide an automatic temperature-sensing type temperature regulating switch so as to solve the technical problems.

The technical scheme of the application is as follows: the automatic temperature-sensing type temperature regulating switch comprises a bottom plate and a base, wherein the bottom plate is connected with the base, a gasket is arranged between the bottom plate and the base, the gasket isolates a space between the bottom plate and the base into a first space and a second space, the first space is close to the bottom plate, and a first wiring lug and a second wiring lug are arranged on the outer side of the base; the bimetal strip is provided with a bimetal strip and a contact strip in the second space, one end of the bimetal strip is provided with a movable contact, the contact strip is provided with a fixed contact matched with the movable contact, the other end of the bimetal strip is connected with the first wiring strip, the contact strip is connected with the second wiring strip, a heating body and a thermistor are fixed on the gasket, one end of the heating body is positioned in the second space and is contacted with the bimetal strip, the other end of the heating body is fixed on the gasket, one end of the thermistor is fixed on the gasket and is connected with the heating body, the other end of the thermistor is positioned in the first space, and a vent hole communicated with the first space is arranged on the bottom plate; the base plate or the base is provided with a wiring terminal, and one end of the thermistor, which is located in the first space, is connected with the wiring terminal.

Preferably, an adjustable resistor is arranged on the bottom plate or the base, the input end of the adjustable resistor is connected with one end of the thermistor, which is located in the first space, and the output end of the adjustable resistor is connected with the wiring terminal.

Preferably, extension parts are outwards arranged on two sides of the bottom plate, and fixing holes are formed in the extension parts.

Preferably, the bottom plate is a metal plate, and the base is an insulating base.

Preferably, the base is a ceramic base.

The principle of the automatic temperature sensing type temperature regulating switch in the embodiment is as follows:

when the connected heating element starts to work, the current flowing through the heating body is negligible due to the larger resistance value of the thermistor; along with the rise of the ambient temperature, the resistance value of the thermistor becomes smaller, the current flowing through the heating body becomes larger, the heating body heats, when the ambient temperature of the heating element rises to a high-temperature threshold value, the heating body heats and accumulates heat to enable the bimetallic strip to act so as to disconnect the movable contact from the fixed contact, the heating element does not work, the ambient temperature of the heating element gradually decreases until the ambient temperature of the heating element falls to a low-temperature threshold value, the bimetallic strip deforms so as to enable the movable contact to be in contact with the fixed contact, and the temperature is controlled to be close to the preset temperature of people in a certain range in a reciprocating manner.

The automatic temperature-sensing type temperature regulating switch has the following advantages:

1. the temperature regulating switch does not realize temperature control through components such as a chip control relay, has a relatively simple structure, and is beneficial to realizing the miniaturization of the temperature regulating switch.

2. The bimetal can be disconnected to form protection for the circuit in case of an overload or a fault such as a short circuit.

Drawings

Fig. 1 is one of the internal structural schematic diagrams of an automatic temperature sensing type temperature regulating switch of embodiment 1;

FIG. 2 is a second schematic diagram of the internal structure of an automatic temperature sensing type temperature regulating switch according to embodiment 1;

FIG. 3 is a schematic diagram showing an internal structure of an automatic temperature sensing type temperature regulating switch according to embodiment 2;

FIG. 4 is a second schematic diagram of the internal structure of an automatic temperature sensing type temperature regulating switch according to embodiment 2;

in the figure: the base plate 1, the base 2, the extension part 3, the fixing hole 4, the gasket 5, the first space 6, the second space 7, the heating body 8, the thermistor 9, the bimetallic strip 10, the contact piece 11, the first wiring piece 12, the second wiring piece 13, the movable contact 14, the fixed contact 15, the first rivet 16, the second rivet 17 and the adjustable resistor 18.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Embodiment 1, the present utility model provides an automatic temperature-sensing type temperature regulating switch, referring to fig. 1 and 2, comprising a base plate 1 and a base plate 2, wherein the base plate is preferably a metal plate, the base plate is preferably an insulating base, and is preferably a ceramic base, extension parts 3 are outwards arranged at two sides of the base plate, fixing holes 4 are arranged on the extension parts and are used for fixing the automatic temperature-sensing type temperature regulating switch to equipment, a gasket 5 is arranged between the base plate and the base plate, and the gasket isolates a space between the base plate and the base plate into a first space 6 and a second space 7, and the first space is close to the base plate; the outer side of the base is provided with a first wiring lug 12 and a second wiring lug 13; a bimetallic strip 10 and a contact strip 11 are arranged in the second space, the bimetallic strip is a bimetallic strip with a bent shape, one end of the bimetallic strip is provided with a movable contact 14, the contact strip is provided with a fixed contact 15 matched with the movable contact, the other end of the bimetallic strip is connected with the first wiring strip, the contact strip is connected with the second wiring strip, during manufacturing, the bimetallic strip and the first wiring strip can be riveted on the base through a first rivet 16, and the contact strip and the second wiring strip are riveted on the base through a second rivet 17; the heating body 8 and the thermistor 9 are fixed on the gasket, in this embodiment, the thermistor uses an NTC thermistor, the heating body may be in the form of an electric heating sheet, an electric heating rod, or an electric heating column, etc., one end of the heating body is located in the second space and contacts with the bimetallic strip, the other end of the heating body is fixed on the gasket, one end of the thermistor is fixed on the gasket and connected with the heating body, the other end of the thermistor is located in the first space, a vent hole communicated with the first space is provided on the bottom plate, a terminal is provided on the bottom plate or the base, the thermistor is located at one end of the first space and connected with the terminal, and the terminal may be in the form of an existing terminal.

In embodiment 2, referring to fig. 3 and 4, the structure of embodiment 2 is substantially the same as that of embodiment 1, except that an adjustable resistor 18 is disposed between the thermistor and the terminal, the adjustable resistor 18 may be disposed on the base plate or the base, an input end of the adjustable resistor is connected with one end of the thermistor located in the first space, and an output end of the adjustable resistor is connected with the terminal.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automatic temperature-sensing type temperature regulating switch comprises a bottom plate (1) and a base (2), wherein the bottom plate is connected with the base, a gasket (5) is arranged between the bottom plate and the base, the gasket isolates a space between the bottom plate and the base into a first space (6) and a second space (7), the first space is close to the bottom plate, and a first lug (12) and a second lug (13) are arranged on the outer side of the base;

a bimetallic strip (10) and a contact strip (11) are arranged in the second space, the bimetallic strip is a bimetallic strip with a bent shape, one end of the bimetallic strip is provided with a movable contact (14), a stationary contact (15) matched with the movable contact is arranged on the contact strip, the other end of the bimetallic strip is connected with the first wiring strip, the contact strip is connected with the second wiring strip, and the bimetal strip is characterized in that,

a heating body (8) and a thermistor (9) are fixed on the gasket, one end of the heating body is positioned in the second space and is in contact with the bimetallic strip, the other end of the heating body is fixed on the gasket, one end of the thermistor is fixed on the gasket and is connected with the heating body, the other end of the thermistor is positioned in the first space, and a vent hole communicated with the first space is formed in the bottom plate;

the base plate or the base is provided with a wiring terminal, and one end of the thermistor, which is located in the first space, is connected with the wiring terminal.

2. An automatic temperature-sensing type temperature regulating switch according to claim 1, wherein an adjustable resistor (18) is arranged on the base plate or the base plate, an input end of the adjustable resistor is connected with one end of the thermistor located in the first space, and an output end of the adjustable resistor is connected with the terminal.

3. An automatic temperature-sensing type temperature regulating switch according to claim 1, wherein the two sides of the bottom plate are outwardly provided with extension parts (3), and the extension parts are provided with fixing holes (4).

4. The automatic temperature sensing type temperature regulating switch of claim 1, wherein the bottom plate is a metal plate, and the base is an insulating base.

5. The automatic temperature sensing type temperature regulating switch of claim 4, wherein the base is a ceramic base.