Surface temperature thermocouple

Abstract

A surface temperature measurement thermocouple comprises a hollow cylindrical shell, the top of an inner cavity of the hollow cylindrical shell is fixedly provided with a substrate through screws, the substrate is fixedly provided with a thermocouple, the thermocouple is bent into a hollow arc shape, and the material has certain toughness; according to the utility model, the vertex on the surface of the thermocouple is contacted with the surface to be detected to form a contact point, and then the contact surface is changed into a contact plane from one contact point through the gravity of a product or the pressing of a user, so that the temperature detection area is increased; according to the utility model, a user only needs to press and contact the hollow cylindrical shell with a surface to be detected, the product is exquisite, the operation is convenient, the device can be applied to a very small space, and the device can be widely applied to vertical, horizontal and any inclined detection surfaces.

Description

Technical Field

[0001] The utility model relates to the field of thermocouples, in particular to a surface temperature measuring thermocouple. Background Technique

[0002] A thermocouple is a commonly used temperature measuring element in temperature measuring instruments. It directly measures temperature and converts the temperature signal into a thermal electromotive force signal. The outer shapes of various thermocouples are often extremely different due to needs, but their basic structures are roughly the same. Usually, they are mainly composed of a thermal electrode, an insulating sleeve protection tube, a junction box, etc., and are usually used in combination with display instruments, recording instruments, and electronic regulators;

[0003] At present, the temperature measurement method of the thermocouple is often to be close to the object to be measured, and heat transfer is carried out by means of thermal radiation to measure the temperature. However, this measurement method will have errors, resulting in inaccurate measured temperature values. Content of the Utility Model

[0004] The purpose of the utility model is to provide a surface temperature measuring thermocouple to solve the problems put forward in the above background technique.

[0005] The utility model solves its technical problems by adopting the following technical solutions:

[0006] A surface temperature measuring thermocouple includes a hollow cylindrical shell. The top of the inner cavity of the hollow cylindrical shell is fixedly provided with a substrate through screws. A thermocouple is fixedly arranged on the substrate. The thermocouple is bent into a hollow arc shape and the material itself has a certain toughness. The thermocouple is composed of a thermocouple positive electrode and a thermocouple negative electrode. The thermocouple positive electrode and the thermocouple negative electrode are made of different conductor materials. The two ends of the thermocouple are connected by wires and extend outside through one end of the hollow cylindrical shell. The other end of the wire is fixedly provided with a thermocouple quick plug, and the thermocouple quick plug is connected to the detection device.

[0007] Preferably, the components of the thermocouple positive electrode and the thermocouple negative electrode can be nickel-chromium - nickel-silicon.

[0008] Preferably, the surface of the wire is wrapped with a heat shrinkable tube.

[0009] Preferably, an anti-bending spring is arranged on the surface of the wire, and the anti-bending spring protects the wire from being bent.

[0010] The advantages and positive effects of the utility model are:

[0011] 1. The utility model forms a contact point by the vertex on the surface of the thermocouple contacting the surface to be detected. Subsequently, due to the self-gravity of the product or the pressing of the user, the contact surface changes from a contact point to a contact plane, increasing the temperature detection area, thereby more accurately measuring the electrical signal.

[0012] 2. For the utility model, the user only needs to press and contact the hollow cylindrical shell with the surface to be detected. The product is delicate and easy to operate, and can be used in extremely small spaces. At the same time, it can be used for detection surfaces in vertical, horizontal, and any inclined angles, ensuring its wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the utility model in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic diagram of the overall structure of an overall surface temperature measuring thermocouple of the utility model;

[0015] Figure 2 For the utility model Figure 1 is a front view structure schematic diagram;

[0016] Figure 3 For the utility model Figure 2 is an enlarged structure schematic diagram at A;

[0017] Figure 4 For the utility model Figure 2 is a structure schematic diagram at B - B.

[0018] The reference numerals in the drawings are described separately as follows: 10, hollow cylindrical shell; 11, wire; 12, heat shrinkable tube; 13, anti - folding spring; 14, thermocouple quick plug; 15, thermocouple; 16, substrate; 17, thermocouple positive electrode; 18, thermocouple negative electrode. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Now, the utility model will be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model.

[0020] The following Figures 1-4 describes the utility model in detail. For the sake of convenience of narration, the orientation described below is stipulated as follows: the up - down, left - right, front - back directions mentioned below are consistent with the front - back, left - right, up - down directions of the Figure 1 viewing direction, Figure 1 is the front view of the device of the utility model, Figure 1 and the directions shown are consistent with the up - down, left - right, front - back directions of the front view direction of the device of the utility model.

[0021] The following further details the embodiments of the present utility model in conjunction with the accompanying drawings:

[0022] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a surface temperature measuring thermocouple, including a hollow cylindrical shell 10. A substrate 16 is fixedly provided at the top of the inner cavity of the hollow cylindrical shell 10 through screws. A thermocouple 15 is fixedly provided on the substrate 16. The thermocouple 15 is bent into a hollow arc shape and the material itself has a certain toughness. The thermocouple 15 is composed of a thermocouple positive electrode 17 and a thermocouple negative electrode 18. The thermocouple positive electrode 17 and the thermocouple negative electrode 18 are made of different conductor materials. Both ends of the thermocouple 15 are connected by a wire 11 and extend outside through one end of the hollow cylindrical shell 10. A thermocouple quick plug 14 is fixedly provided at the other end of the wire 11. The thermocouple quick plug 14 is connected to a detection device.

[0023] In addition, in one embodiment, the components of the thermocouple positive electrode 17 and the thermocouple negative electrode 18 can be nickel-chromium - nickel-silicon.

[0024] In addition, in one embodiment, a heat shrinkable tube 12 is wrapped on the surface of the wire 11.

[0025] In addition, in one embodiment, an anti-bending spring 13 is provided on the surface of the wire 11. The anti-bending spring 13 protects the wire 11 from being bent.

[0026] During specific implementation: Connect the thermocouple quick plug 14 to the detection device. The user holds the hollow cylindrical shell 10 and makes the thermocouple 15 on the hollow cylindrical shell 10 contact the surface to be measured for temperature. The plane can be in a vertical, horizontal, or inclined state. Since it is in an arc shape and has a certain toughness itself, when the thermocouple 15 just contacts the surface to be detected, the arc vertex of the thermocouple 15 contacts the surface to be detected. Subsequently, through the self-gravity of the product or the pressing of the user, the contact surface changes from one vertex to a plane, increasing the detected temperature area, thereby more accurately measuring the electrical signal. The electrical signal generated by the thermocouple 15 is transmitted to the detection device through the wire 11 and the thermocouple quick plug 14, and an accurate temperature value is obtained. It can be used on planes at any angle. The product is delicate and easy to operate, and can be used in very small spaces, with wide applicability.

[0027] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific implementation manners. Any other implementation manners obtained by those skilled in the art based on the technical solutions of the present utility model also fall within the protection scope of the present utility model.

Claims

1. A surface temperature measuring thermocouple, comprising a hollow cylindrical shell (10), characterized in that: A base plate (16) is fixedly provided at the top of the inner cavity of the hollow cylindrical shell (10) by screws, and a thermocouple (15) is fixedly provided on the base plate (16). The thermocouple (15) is bent into a hollow arc shape and has a certain toughness. The thermocouple (15) is composed of a thermocouple positive electrode (17) and a thermocouple negative electrode (18). The thermocouple positive electrode (17) and the thermocouple negative electrode (18) are made of different conductor materials. The two ends of the thermocouple (15) are connected by a wire (11) and pass through one end of the hollow cylindrical shell (10) and extend to the outside. A thermocouple quick plug (14) is fixedly provided at the other end of the wire (11).

2. A surface temperature measuring thermocouple according to claim 1, characterized in that: The thermocouple positive electrode (17) is made of nickel-chromium, and the thermocouple negative electrode (18) is made of nickel-silicon.

3. A surface temperature measuring thermocouple according to claim 1, characterized in that: The surface of the wire (11) is wrapped with a heat shrink tube (12).

4. A surface temperature measuring thermocouple according to claim 1, characterized in that: An anti-bending spring (13) is provided on the surface of the wire (11).

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