CN217131343U

CN217131343U - Thermocouple and infrared gas stove

Info

Publication number: CN217131343U
Application number: CN202220904049.XU
Authority: CN
Inventors: 刘艳春; 林永尧; 陈晓文; 谢昌华
Original assignee: Guangzhou Redsun Gas Appliances Co ltd
Current assignee: Guangzhou Redsun Gas Appliances Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-05
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a thermocouple and an infrared gas stove, wherein the thermocouple comprises a heat conductor, one end of the heat conductor is fixedly connected with an anode and a cathode, one end of the anode, which is far away from the heat conductor, is connected with a wire connecting ring through an anode lead wire, and one end of the cathode, which is far away from the heat conductor, is connected with a plug port through a cathode lead wire; the heat conductor is an iron-chromium-aluminum alloy heat conductor. The heat conductor adopts iron-chromium-aluminum alloy material, and it can be able to bear the high temperature more than 1200 ℃, and positive pole and negative pole are connected in a tip of heat conductor, and in the in-service use, the heat conductor is kept away from just, the one end of negative pole and the combustion face contact of combustor to the high temperature damage of combustor just, negative pole have been prevented, the life of thermocouple has been improved, has better security performance simultaneously.

Description

Thermocouple and infrared gas stove

Technical Field

The utility model belongs to the technical field of kitchen utensil, specifically speaking relates to a thermocouple and have infrared gas stove of this thermocouple.

Background

Infrared gas cookers are becoming more popular with consumers because of their higher thermal efficiency, lower carbon monoxide emissions, and more energy efficient characteristics. The infrared gas stove is generally provided with an infrared radiation burner and a thermocouple for generating electromotive force to drive a gas stove, the thermocouple generates electromotive force when being heated, the thermoelectric electromotive force generated by the thermoelectric effect is used for driving a gas switch electromagnetic valve on a gas passage of the gas stove, extra power supply is not needed, and the infrared gas stove is most widely applied.

The surface temperature of an infrared radiation burner of an infrared gas cooker can reach 900-.

In view of the above, it is desirable to provide a thermocouple with a long service life and an infrared gas cooker having the thermocouple.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that the thermocouple temperature resistance for traditional gas-cooker is lower, is less than the surface temperature of infrared gas-cooker combustor, and life is short to a long service life's thermocouple and have the infrared gas-cooker of this thermocouple are proposed.

In order to solve the technical problem, the utility model adopts the technical scheme that:

a thermocouple comprises a heat conductor, wherein one end of the heat conductor is fixedly connected with an anode and a cathode, one end of the anode, far away from the heat conductor, is connected with a wire connecting ring through an anode lead, and one end of the cathode, far away from the heat conductor, is connected with a plug-in port through a cathode lead; the heat conductor is an iron-chromium-aluminum alloy heat conductor.

Preferably, the connection end of the positive electrode and the positive electrode lead is fixedly connected in a support sleeve.

Preferably, a mounting member is fixedly connected to the outside of the support sleeve, the mounting member is connected to the inside of a burner, and the heat conductor is arranged outside the burner.

Preferably, the positive electrode is made of chromium-aluminum alloy, and the negative electrode is made of constantan alloy.

Preferably, the anode is sleeved outside the cathode, and an insulating protective sleeve is arranged between the anode and the cathode.

Preferably, the positive electrode and the positive electrode connecting wire are welded to the support case.

Preferably, the mounting member is an interference fit with the support sleeve.

Preferably, the mounting member is fixedly connected with the burner through a matched thread.

Preferably, the mounting member has a screw groove formed therein, and the mounting member is fixedly coupled to the burner by a screw fitted into the screw groove.

The utility model discloses the second aspect provides an infrared gas stove, it includes the thermocouple, still include the combustor, thermocouple fixed connection in the combustor, and only the heat conductor is arranged in the infrared cover of combustor establishes the face.

Compared with the prior art, the technical scheme of the utility model have following advantage:

the utility model provides a thermocouple, which comprises a heat conductor, wherein one end of the heat conductor is fixedly connected with an anode and a cathode, one end of the anode, which is far away from the heat conductor, is connected with a wire connecting ring through an anode lead wire, and one end of the cathode, which is far away from the heat conductor, is connected with a socket through a cathode lead wire; the heat conductor is an iron-chromium-aluminum alloy heat conductor. The heat conductor adopts iron-chromium-aluminum alloy material, and it can be able to bear the high temperature more than 1200 ℃, and positive pole and negative pole are connected in a tip of heat conductor, and in the in-service use, the heat conductor is kept away from just, the one end of negative pole and the combustion face contact of combustor to the high temperature damage of combustor just, negative pole have been prevented, the life of thermocouple has been improved, has better security performance simultaneously.

Drawings

In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic cross-sectional view of a thermocouple provided in an embodiment of the present invention;

fig. 2 is a schematic view of a thermocouple and a burner according to an embodiment of the present invention.

The reference numbers in the figures denote: 1-a heat conductor; 2-positive electrode and 3-negative electrode; 4-positive lead 5-wire loop; 6-negative electrode lead; 7-a socket; 8-a support sleeve; 9-a mounting member; 10-a burner; 11-insulating protective sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the product of the present invention is usually placed when in use, or the orientation or positional relationship that a person skilled in the art usually understands, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element that is 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.

The terms "first", "second", etc. in the description of the present invention are used for descriptive distinction only and have no special meaning.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "mounted" are to be construed broadly, e.g., as being fixedly attached, detachably attached, or integrally attached; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

The present embodiment provides a thermocouple, which is applied to an infrared gas stove, please refer to fig. 1-x, the thermocouple includes a heat conductor 1, one end of the heat conductor 1 is used for contacting with a heat radiation surface of a burner 10 of the infrared gas stove, the other end is fixedly connected with an anode 2 and a cathode 3, one end of the anode 2 far away from the heat conductor 1 is connected to a connection ring 5 through an anode lead 4, one end of the cathode 3 far away from the heat conductor 1 is connected to a connection port 7 through a cathode lead 6, wherein the heat conductor is an iron-chromium-aluminum alloy heat conductor.

The heat conductor 1 in the thermocouple is made of iron-chromium-aluminum alloy and can resist high temperature of more than 1200 ℃, the positive electrode and the negative electrode are connected to one end part of the heat conductor, and in actual use, only one end of the heat conductor 1, far away from the positive electrode and the negative electrode, is in contact with a combustion surface of the combustor 10, so that the high-temperature radiation damage to the positive electrode and the negative electrode of the combustor 10 is prevented, the service life of the thermocouple is prolonged, and meanwhile, the thermocouple has better safety performance.

In this embodiment, the positive electrode 2 is preferably made of a chromium-aluminum alloy, which can resist a high temperature of 500 ℃ or higher, the negative electrode 3 is made of constantan alloy, which has a low temperature coefficient of resistance, a wide temperature range of use, the heat conductor 1 is preferably cylindrical, and one end of the heat conductor 1 away from the burner is fixedly connected with the positive electrode 2 and the negative electrode 3 by welding, so that the connection firmness degree of the heat conductor 1 with the positive electrode 2 and the negative electrode 3 is ensured. The welding material adopts solder which can resist the temperature of more than 500 ℃ so as to fully ensure the high temperature resistance of the thermocouple.

The connecting end of the anode 2 and the anode lead 4 is fixedly connected in a supporting sleeve 8, in the embodiment, the supporting sleeve 8 is a hollow cylindrical structure, one end of the anode 2 and one end of the anode lead 4 are welded with the supporting sleeve 8, the anode lead 4 penetrates through the supporting sleeve 8, and the other end of the anode lead 4 is connected to the wiring ring 5.

The negative lead 6 penetrates through the supporting sleeve 8, and the other end of the negative lead is connected to the socket 7, in the embodiment, the socket 7 is a 2.3-plug female port and is used for connecting an electromagnetic valve of a gas stove, so that the negative 3, the negative lead 6 and the socket 7 form another low-resistance circuit. Meanwhile, the cathode lead 6 is arranged in the supporting sleeve 8, so that the insulating protection capability of the cathode lead is improved.

A mounting member 9 is fixedly connected to the outside of the support sleeve 8, the mounting member 9 is used for connecting the support sleeve 8 to the burner 10, and when the support sleeve 8 connected with the anode 2, the cathode 3 and the heat conductor 1 is mounted to the burner 10 through the mounting member 9, the heat conductor 1 is disposed outside the burner 10 and can be in contact with the heat radiation surface of the burner 10. Specifically, the mounting part 9 is a mounting ring arranged outside the supporting sleeve 8, in order to realize fastening connection, the supporting sleeve 8 is in interference fit with the mounting part 9, the mounting part 9 is in threaded connection with the burner 10 through adaptation, and the mounting part 9 is provided with a screw groove through which a screw passes to mount the mounting part 9 on the burner 10.

The positions of the thermocouples are fixed through the design of the mounting ring structure, so that the working temperature of the anode 2 and the cathode 3 of the thermocouple can be effectively ensured to be within the temperature resistant range, and the thermocouple has longer service life and better mounting performance than the conventional thermocouple.

Further, anodal 2 is hollow cylindric structure, and the bending so that heat conductor 1 extends along the horizontal direction to better induction heat radiation, negative pole 3 sets up inside anodal 2, and is provided with insulating protective sheath 11 between anodal 2 and the negative pole 3, and insulating protective sheath 11 still overlaps simultaneously and locates the negative pole lead 6 outsidely, also plays insulating protection's effect to the negative pole lead.

The embodiment also provides an infrared gas stove which comprises the thermocouple and a combustor 10, wherein the thermocouple is fixedly installed on the combustor through the installation piece 9, and when the thermocouple is installed on the combustor, only the heat conductor of the thermocouple is located in the range of the infrared radiation surface of the combustor.

The thermocouple is fixed behind the infrared burner, and only heat conductor 1 and infrared combustion face direct contact conduct the heat on anodal 2 and the common node of negative pole 3 through heat conductor 1 for the thermocouple normally produces the thermoelectric potential and supplies power to the solenoid valve. The common node of the anode 2 and the cathode 3 is not directly contacted with the combustion surface with the temperature of 900-1000 ℃, so that the thermocouple provided by the embodiment has improved durability in a high-temperature working environment and prolonged service life based on the improvement of the structure.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A thermocouple is characterized by comprising a heat conductor, wherein one end of the heat conductor is fixedly connected with an anode and a cathode, one end of the anode, far away from the heat conductor, is connected with a wire connecting ring through an anode lead, and one end of the cathode, far away from the heat conductor, is connected with a plug-in port through a cathode lead; the heat conductor is an iron-chromium-aluminum alloy heat conductor.

2. A thermocouple according to claim 1, in which the connecting end of the positive electrode and the positive lead is fixedly connected within a supporting sleeve.

3. A thermocouple according to claim 2, in which a mounting member is fixedly attached to the exterior of said support sleeve, said mounting member being connected to the interior of a burner, said heat conductor being disposed externally of said burner.

4. A thermocouple according to any one of claims 1 to 3, in which the positive electrode is of chromium aluminium alloy and the negative electrode is of constantan alloy.

5. The thermocouple according to claim 4, wherein the positive electrode is sleeved outside the negative electrode, and an insulating protective sleeve is arranged between the positive electrode and the negative electrode.

6. The thermocouple of claim 2, wherein said positive electrode and said positive electrode connecting wire are welded to said support sleeve.

7. The thermocouple of claim 3, wherein said mounting member has an interference fit with said support sleeve.

8. The thermocouple of claim 7, wherein said mounting member is fixedly connected to said burner by means of a mating thread.

9. The thermocouple of claim 8, wherein said mounting member defines a screw slot, said mounting member being fixedly attached to said burner by a screw mounted in said screw slot.

10. An infrared gas range, comprising a thermocouple according to any one of claims 1 to 9, and further comprising a burner, wherein the thermocouple is fixedly attached to the burner, and only the heat conductor is disposed in an infrared-covered surface of the burner.