CN212133922U

CN212133922U - Furnace surface temperature sensor

Info

Publication number: CN212133922U
Application number: CN202021110716.4U
Authority: CN
Inventors: 莫小燕
Original assignee: Guangdong Shunde Kaige Electronic Industry Co Ltd
Current assignee: Guangdong Shunde Kaige Electronic Industry Co Ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-12-11
Anticipated expiration: 2030-06-16

Abstract

The utility model relates to a stove face temperature sensor, it includes pedestal and thermistor, and the top surface of pedestal is equipped with the bearing surface, and thermistor sets up on the bearing surface, be equipped with the copper sheet on the bearing surface, the copper sheet is equipped with presss from both sides the mouth, and the thermistor card is established in pressing from both sides the mouth, and the opening of pressing from both sides the mouth outwards is equipped with the elasticity turn-ups, and the turn-ups's of elasticity top surface is higher than the top surface of thermistor and pedestal. This kind of stove face temperature sensor's thermistor presss from both sides outward has the copper sheet, and the elasticity turn-ups on the copper sheet is higher than pedestal and thermistor top surface, consequently, during the installation more easily with the measured object contact, moreover, because the elasticity turn-ups has elasticity, so, not high to the installation accuracy requirement of measured object, the temperature of measured object transmits for thermistor through the elasticity turn-ups that has good heat conductivility for the quick accurate temperature sensing of thermistor.

Description

Furnace surface temperature sensor

Technical Field

The utility model relates to a temperature sensor, especially a furnace face temperature sensor.

Background

Referring to fig. 6, the structure of the conventional furnace surface temperature sensor is schematically shown, and the conventional furnace surface temperature sensor includes a base 1 and a thermistor 2, wherein a bearing surface 11 is arranged on the top surface of the base, the thermistor is arranged on the bearing surface, two ends of the thermistor are respectively provided with pins 21, a cavity 13 is arranged at the bottom of the base, two threading holes 12 are arranged on the bearing surface corresponding to the pins of the thermistor, the threading holes are communicated with the cavity, and the two pins respectively extend into the cavity through one threading hole and are electrically connected with an outgoing line 4. The seat body periphery is equipped with ring groove 14. Taking the application in an electromagnetic oven as an example, the clamping groove of the base body in the structure is connected with the inner wall of the central hole of the winding bracket in the electromagnetic oven, and the thermistor is contacted with the bottom surface of the microcrystalline plate on the top surface of the electromagnetic oven so as to judge the temperature of a vessel placed on the microcrystalline plate. However, in this structure, the connection fit clearance between the base and the bobbin is large, and in addition, the distance between the shell, the microcrystal plate and the furnace surface sensor is also influenced by the shell structure of the induction cooker, which easily causes the thermistor not to contact with the bottom surface of the microcrystal plate, so that the temperature measurement is inaccurate.

Disclosure of Invention

An object of the utility model is to provide a furnace face temperature sensor rational in infrastructure, the temperature measurement is accurate.

The purpose of the utility model is realized like this:

the utility model provides a stove face temperature sensor, includes pedestal and thermistor, and the top surface of pedestal is equipped with the bearing surface, and thermistor sets up on the bearing surface, its characterized in that, be equipped with the copper sheet on the bearing surface, the copper sheet is equipped with presss from both sides the mouth, and the thermistor card is established in pressing from both sides the mouth, presss from both sides the opening of mouth and outwards is equipped with the elasticity turn-ups, and the turn-ups's of elasticity top surface is higher than the top surface of thermistor and pedestal.

The purpose of the utility model can also adopt the following technical measures to solve:

according to a more specific scheme, pins are arranged at two ends of the thermistor respectively, a concave cavity is formed in the bottom of the base, two threading holes are formed in the supporting surface corresponding to the pins of the thermistor and communicated with the concave cavity, the two pins extend into the concave cavity through one threading hole respectively and are electrically connected with the outgoing line, and an insulating sleeve is sleeved outside the joint of the outgoing line and the pins.

As a further scheme, a partition plate is arranged between the two corresponding threading holes in the concave cavity. The two pins are separated by the partition plate, so that the safety is higher.

As a further scheme, the periphery of the seat body is provided with an annular clamping groove.

The utility model has the advantages as follows:

this kind of stove face temperature sensor's thermistor presss from both sides outward has the copper sheet, and the elasticity turn-ups on the copper sheet is higher than pedestal and thermistor top surface, consequently, during the installation more easily with the measured object contact, moreover, because the elasticity turn-ups has elasticity, so, not high to the installation accuracy requirement of measured object, the temperature of measured object transmits for thermistor through the elasticity turn-ups that has good heat conductivility for the quick accurate temperature sensing of thermistor.

Drawings

Fig. 1 is a schematic top view of an embodiment of the present invention.

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Fig. 3 is an enlarged schematic view of the structure at C in fig. 2.

Fig. 4 is a schematic structural diagram of a use state of fig. 3.

FIG. 5 is a schematic sectional view of the structure of FIG. 1B-B.

FIG. 6 is a schematic cross-sectional view of a prior art furnace face temperature sensor.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

referring to fig. 1 to 3 and 5, a furnace surface temperature sensor includes a base body 1 and a thermistor 2, a bearing surface 11 is arranged on the top surface of the base body 1, the thermistor 2 is arranged on the bearing surface 11, a copper sheet 3 is arranged on the bearing surface 11, the copper sheet 3 is provided with a clamping opening 31, the thermistor 2 is clamped in the clamping opening 31, an opening of the clamping opening 31 is outwardly provided with an elastic flanging 32, and the top surface of the elastic flanging 32 is higher than the top surfaces of the thermistor 2 and the base body 1. The elastic flanging 32 and the clamping opening 31 are integrally formed by bending the copper sheet 3. The bottom of the clamping opening 31 is provided with a convex part, and the convex part and the seat body 1 are integrally injected and molded, so that the copper sheet 3 is fixed.

The two ends of the thermistor 2 are respectively provided with pins 21, the bottom of the base body 1 is provided with a cavity 13, the bearing surface 11 is provided with two threading holes 12 corresponding to the pins 21 of the thermistor 2, the threading holes 12 are communicated with the cavity 13, the two pins 21 respectively extend into the cavity 13 through one threading hole 12 and are electrically connected with the outgoing line 4, and the insulating sleeve 5 is sleeved outside the joint of the outgoing line 4 and the pins 21.

And a partition plate 15 is arranged between two corresponding threading holes 12 in the concave cavity 13.

The periphery of the seat body 1 is provided with an annular clamping groove 14.

As shown in fig. 4, when the oven surface temperature sensor is installed inside the electromagnetic oven, the bottom surface of the microcrystal plate 6 on the top surface of the electromagnetic oven is pressed on the elastic flange 32 (of course, it is more desirable that the microcrystal plate 6 is simultaneously contacted with the elastic flange 32 and the thermistor 2), the temperature of the heating utensil on the microcrystal plate 6 is transmitted to the thermistor 2 through the microcrystal plate 6 and the elastic flange 32, the resistance value of the thermistor 2 changes, and the signal is fed back to the control circuit of the electromagnetic oven.

Claims

1. The utility model provides a furnace face temperature sensor, includes pedestal (1) and thermistor (2), and the top surface of pedestal (1) is equipped with bearing surface (11), and thermistor (2) set up on bearing surface (11), be equipped with copper sheet (3) on bearing surface (11), copper sheet (3) are equipped with and press from both sides mouth (31), and thermistor (2) card is established in pressing from both sides mouth (31), and the opening of pressing from both sides mouth (31) outwards is equipped with elasticity turn-ups (32), and the top surface of elasticity turn-ups (32) is higher than the top surface of thermistor (2) and pedestal (1).

2. The furnace surface temperature sensor according to claim 1, wherein pins (21) are respectively arranged at two ends of the thermistor (2), a cavity (13) is arranged at the bottom of the seat body (1), two threading holes (12) are arranged on the supporting surface (11) corresponding to the pins (21) of the thermistor (2), the threading holes (12) are communicated with the cavity (13), the two pins (21) respectively extend into the cavity (13) through one threading hole (12) and are electrically connected with the outgoing line (4), and an insulating sleeve (5) is sleeved outside the connection part of the outgoing line (4) and the pins (21).

3. The furnace surface temperature sensor according to claim 2, wherein a partition plate (15) is arranged between two corresponding threading holes (12) in the cavity (13).

4. The furnace surface temperature sensor according to claim 1, characterized in that the seat body (1) is provided with a ring-shaped clamping groove (14) at the periphery.