CN209947750U

CN209947750U - Novel temperature controller

Info

Publication number: CN209947750U
Application number: CN201920666518.7U
Authority: CN
Inventors: 肖喜阳; 钟超
Original assignee: Dezhou Deqin Electric Appliance Co Ltd
Current assignee: Guangdong Deqin Electric Appliance Co.,Ltd.
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-01-14
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses a novel temperature controller, including top board, last reed and lower reed, first terminal, fixed contact piece, second terminal, bimetallic strip and the bearing plate of arranging in proper order from top to bottom, first terminal is connected go up the reed, be provided with current protection device between second terminal and the fixed contact piece, be equipped with on the bearing plate to the convex butt piece of bimetallic strip. The current protection device is arranged between the fixed contact piece and the second terminal, so that overcurrent secondary protection is provided for the temperature controller, and once the current is too large and the bimetallic strip cannot react immediately, the current protection device acts to quickly cut off a loop to protect the loop, so that the use safety of an electric appliance is guaranteed; and a support plate and an abutting piece are arranged below the bimetallic strip to limit the downward reverse bending of the bimetallic strip, so that the temperature controller is prevented from being automatically switched on in an environment lower than the working temperature, and the working reliability of the temperature controller is improved.

Description

Novel temperature controller

Technical Field

The utility model relates to a control by temperature change field, concretely relates to novel temperature controller.

Background

The temperature controller is a device for controlling the on-off of an electric element according to the temperature, and is widely used in electric cookers, electric ovens, electric baking trays and other household appliances and other articles for daily use. The main action parts of the temperature controller are a bimetallic strip and a metal reed with elasticity, the bimetallic strip is composed of at least two metals with different thermal expansion coefficients, and when the bimetallic strip is heated, the bimetallic strip is bent due to the inconsistent expansion amplitude of various metals, so that the metal reed is driven to act, a loop is cut off, and control is realized. However, the prior temperature controller may have the following problems in the using process: firstly, when the ambient temperature is lower than the normal working temperature of the temperature controller, the bimetallic strip on the temperature controller may be reversely bent, so that the temperature controller is abnormally connected, and the reliability of the temperature controller is affected; secondly, when the temperature controller suddenly encounters extremely high temperature or large current, the bimetallic strip in the temperature controller can not react quickly to push the contact to bounce, and the working safety of the electric appliance controlled by the temperature controller is threatened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a security and the higher novel temperature controller of reliability.

According to the utility model discloses a first aspect provides a novel temperature controller, including arranging in proper order from top to bottom: the upper pressure plate is provided with an adjusting screw rod; the lower end of the adjusting screw is abutted against the upper reed, and the free end of the lower reed is provided with an upper contact; a first terminal connected to the upper spring plate; the fixed contact piece is provided with a lower contact corresponding to the upper contact; the second terminal is connected with the fixed contact piece, and a current protection device is arranged between the second terminal and the fixed contact piece; the bimetallic strip is formed by superposing two layers of different metals, and one end of the bimetallic strip is linked with the lower reed through an insulating transmission part; and the support plate is provided with a butting piece protruding towards the bimetallic strip.

The novel temperature controller at least has the following beneficial effects: the current protection device is arranged between the fixed contact piece and the second terminal, so that overcurrent secondary protection is provided for the temperature controller, and once the current is too large and the bimetallic strip cannot react immediately, the current protection device acts to quickly cut off a loop to protect the loop, so that the use safety of an electric appliance is guaranteed; and a support plate and an abutting piece are arranged below the bimetallic strip to limit the downward reverse bending of the bimetallic strip, so that the temperature controller is prevented from being automatically switched on in an environment lower than the working temperature, and the working reliability of the temperature controller is improved.

According to the utility model discloses the first aspect novel temperature controller, the top board with go up between the reed go up the reed with between the fixed contact piece with between the bimetallic strip, be provided with electrical insulation part respectively and separate, avoid the misconnection between the above-mentioned electrical accessories and influence return circuit normal work.

According to the novel temperature controller of the first aspect of the present invention, the electrical insulator is preferably a ceramic insulator block.

According to the utility model discloses a novel temperature controller, top board, last reed, first terminal, fixed contact piece, second terminal, bimetallic strip, bearing plate and electrical insulation spare one end seted up the through-hole, passed the through-hole is installed the stop collar that top board, last reed, first terminal, fixed contact piece, second terminal, bimetallic strip, bearing plate and electrical insulation spare compressed tightly. The electric fittings are compressed and fixed through the limiting sleeve, and meanwhile, the temperature controller can be conveniently installed at a required position through the through hole.

According to the utility model discloses the first aspect novel temperature controller, adjusting screw is provided with changes the handle, change and connect through the connection piece adjusting screw. The adjusting screw rod can be conveniently operated through the rotating handle, and the gap between the upper contact and the lower contact is adjusted.

According to the utility model discloses the first aspect novel temperature controller, be provided with spacing hole on the connection piece, be provided with the spacing sand grip of upwards extending on the top board, spacing sand grip is located spacing downthehole. The limiting hole is matched with the limiting convex strip, the rotating range of the rotating handle is limited in advance, and the upper reed is prevented from being damaged due to over-adjustment of the adjusting screw rod.

According to the utility model discloses novel temperature controller of first aspect, be provided with the screw on the bearing plate, the butt piece is the butt screw rod of through threaded connection on the bearing plate. The distance between the abutting part and the bimetallic strip can be conveniently adjusted by adopting the structure of the screw rod.

According to the utility model discloses first aspect novel temperature controller, insulating driving medium upper end and lower extreme set up respectively to the pyramis, the bimetallic strip with the reed corresponds down the insulating driving medium is provided with the mounting hole respectively, the pyramis of insulating driving medium inserts fastening in the mounting hole. The insulating transmission part is fixed by matching the pyramid part with the mounting hole, so that the mounting is convenient.

According to the novel temperature controller of the first aspect of the present invention, the current protection device is preferably an overcurrent fuse.

Drawings

The invention is further described below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of the novel temperature controller.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, the present invention provides a preferred embodiment, a novel temperature controller, including top board 10, top reed 20 and lower reed 30, first terminal 40, fixed contact piece 50, second terminal 60, bimetallic strip 70, support plate 80 arranged from top to bottom in proper order, top board 10 with between the top reed 20, top reed 20 with between the fixed contact piece 50, fixed contact piece 50 with between the bimetallic strip 70, be provided with electrical insulation 90 respectively and separate. The electrical insulator 90 is preferably a ceramic insulator block, but may be other insulator components. One end of the upper pressure plate 10, the upper spring plate 20, the first terminal 40, the fixed contact piece 50, the second terminal 60, the bimetallic strip 70, the support plate 80 and the electrical insulating piece 90 is provided with a through hole, a limiting sleeve 100 for pressing the upper pressure plate 10, the upper spring plate 20, the first terminal 40, the fixed contact piece 50, the second terminal 60, the bimetallic strip 70, the support plate 80 and the electrical insulating piece 90 is installed through the through hole, the electrical fittings are pressed and fixed through the limiting sleeve 100, and meanwhile, the temperature controller can be conveniently installed at a required position through the through hole.

The upper pressure plate 10 is provided with an adjusting screw rod 11, the adjusting screw rod 11 is provided with a rotating handle 113, and the rotating handle 113 is connected with the adjusting screw rod 11 through a connecting piece 111. The adjusting screw 11 can be conveniently operated by turning the knob 113. The connecting sheet 111 is provided with a limiting hole, the upper pressing plate 10 is provided with a limiting convex strip 112 extending upwards, and the limiting convex strip 112 is located in the limiting hole. The limit hole is engaged with the limit protrusion 112 to limit the rotation range of the rotation handle 113 in advance.

One end of the upper spring plate 20 is connected with one end of the lower spring plate 30, the upper spring plate 20 and the lower spring plate 30 are both made of elastic metal sheets, the lower end of the adjusting screw rod 11 is abutted to the upper spring plate 20, and the free end of the lower spring plate 30 is provided with an upper contact. The first terminal 40 is connected to the upper spring 20.

The fixed contact piece 50 is arranged below the lower spring leaf 30, and the fixed contact piece 50 is provided with a lower contact corresponding to the upper contact. The second terminal 60 is connected to the fixed contact piece 50, and a current protection device 61 is arranged between the second terminal 60 and the fixed contact piece 50, preferably, the current protection device 61 is an overcurrent fuse. It is understood that other overcurrent protection accessories, such as spring reed, can be used in the current protection device 61.

The bimetal strip 70 is formed by overlapping two layers of different metals, and one end of the bimetal strip 70 is linked with the lower spring plate 30 through an insulating transmission member 71. The insulating transmission member 71 is a ceramic member, the upper end and the lower end of the insulating transmission member 71 are respectively provided with a cone, the bimetallic strip 70 and the lower reed 30 are respectively provided with a mounting hole corresponding to the insulating transmission member 71, the cone of the insulating transmission member 71 is inserted into the mounting hole for fastening, and the cone is matched with the mounting hole for fixing, so that the insulating transmission member is convenient to mount and replace, and smooth transmission of actions can be ensured.

A support plate 80 is provided below the bimetal strip 70, a screw hole is provided in the support plate 80, an abutting piece 81 protruding toward the bimetal strip 70 is installed in the screw hole of the support plate 80, and the abutting piece 81 is an abutting screw rod connected to the support plate 80 through a screw thread. Turning the screw adjusts the distance between the abutment 81 and the bimetal 70.

In the novel temperature controller of the embodiment, the current protection device 61 is arranged between the fixed contact piece 50 and the second terminal 60, so that overcurrent secondary protection is provided for the temperature controller, and once the current is too large and the bimetallic strip 70 cannot react immediately, the current protection device 61 acts to quickly cut off a loop to protect the loop, so that the use safety of an electric appliance is guaranteed; and the support plate 80 and the abutting piece 81 are arranged below the bimetallic strip 70, so that the downward reverse bending of the bimetallic strip 70 is limited, the temperature controller is prevented from being automatically switched on under the environment of lower than the working temperature, and the working reliability of the temperature controller is improved.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the technical effects of the present invention can be achieved by the same means, which all belong to the protection scope of the present invention.

Claims

1. The utility model provides a novel temperature controller which characterized in that, including arranging from top to bottom in proper order:

the upper pressure plate is provided with an adjusting screw rod;

the lower end of the adjusting screw is abutted against the upper reed, and the free end of the lower reed is provided with an upper contact;

a first terminal connected to the upper spring plate;

the fixed contact piece is provided with a lower contact corresponding to the upper contact;

the second terminal is connected with the fixed contact piece, and a current protection device is arranged between the second terminal and the fixed contact piece;

the bimetallic strip is formed by superposing two layers of different metals, and one end of the bimetallic strip is linked with the lower reed through an insulating transmission part;

and the support plate is provided with a butting piece protruding towards the bimetallic strip.

2. The new temperature controller according to claim 1, characterized in that there are electrical insulation partitions between the upper pressure plate and the upper spring plate, between the upper spring plate and the fixed contact plate, and between the fixed contact plate and the bimetal plate, respectively.

3. The novel temperature controller of claim 2, wherein the electrical insulator is a ceramic insulator block.

4. The novel temperature controller according to claim 2 or 3, wherein a through hole is formed at one end of the upper pressing plate, the upper spring plate, the first terminal, the fixed contact plate, the second terminal, the bimetal, the supporting plate and the electrical insulating member, and a limit sleeve for pressing the upper pressing plate, the upper spring plate, the first terminal, the fixed contact plate, the second terminal, the bimetal, the supporting plate and the electrical insulating member is installed through the through hole.

5. The novel temperature controller according to claim 1, wherein the adjusting screw is provided with a rotating handle, and the rotating handle is connected with the adjusting screw through a connecting piece.

6. The novel temperature controller according to claim 5, wherein the connecting piece is provided with a limiting hole, the upper pressing plate is provided with a limiting convex strip extending upwards, and the limiting convex strip is positioned in the limiting hole.

7. The novel temperature controller according to claim 1, wherein the support plate is provided with a screw hole, and the abutting member is an abutting screw rod which is connected to the support plate through threads.

8. The novel temperature controller according to claim 1, wherein the upper end and the lower end of the insulating transmission member are respectively provided with a cone, the bimetallic strip and the lower spring are respectively provided with a mounting hole corresponding to the insulating transmission member, and the cone of the insulating transmission member is inserted into the mounting hole for fastening.

9. The new temperature controller of claim 1, wherein the current protection device is an overcurrent fuse.