Protection device of temperature measuring element and temperature measuring assembly
By adopting a removable sealing connection method in the temperature measurement assembly of the pressure-bearing container, the problems of difficulty in traditional welding connection and replacement are solved, and more efficient assembly and maintenance are achieved, and the temperature measurement accuracy and sealing performance are improved.
Patent Information
- Application Number
- CN202421423139.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-20
AI Technical Summary
When connecting the temperature measuring components of existing pressure-bearing containers, they are prone to welding quality problems and cumbersome assembly processes, and it is difficult to replace components.
The protective sleeve and the fixed sleeve are connected by connecting the connecting assembly, replacing the traditional welding sealing process.
It reduces process difficulty and processing costs, simplifies the assembly process, facilitates the maintenance and replacement of consumable parts such as protective sleeves, and improves sealing performance and temperature measurement accuracy.
Smart Images

Figure CN222635623U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of temperature measurement, in particular to a protection device for a temperature measuring element and a temperature measuring component. Background Art
[0002] Pressure vessels mostly store flammable, explosive, and toxic pressure media, which require the container to remain a closed space. If a temperature measuring element is used to directly contact the internal medium, although the actual temperature of the material can be measured, it is difficult to achieve a direct seal between the temperature measuring element itself and the pressure vessel. Once a leak occurs, it will be difficult to control and replace, affecting the normal operation of the container.
[0003] At present, the temperature measuring component of the pressure container usually indirectly measures the material temperature by placing the temperature measuring element in a protective device isolated from the inner cavity of the container. The protective device includes a protective sleeve extending into the interior of the pressure container and a fixed sleeve for installing the protective sleeve and the temperature measuring element. In the prior art, the protective sleeve and the fixed sleeve are fixed by welding. Due to the thickness difference between the protective sleeve and the fixed sleeve, welding quality problems are prone to occur, and the assembly process is cumbersome, and it is difficult to replace components after damage. Utility Model Content
[0004] In view of the above shortcomings of the prior art, the utility model provides a protection device and a temperature measuring assembly for a temperature measuring element, which changes the connection method between the protection sleeve and the fixed sleeve to improve the technical problems of complicated assembly process and difficulty in replacing components.
[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a protection device for a temperature measuring element and a temperature measuring component, which are installed on the wall of a container to protect the temperature measuring element, including a protection sleeve, a fixed sleeve and a connecting component, wherein the protection sleeve accommodates the temperature measuring element, the protection sleeve passes through the wall, the protection sleeve includes a blocking end and an open end, and the blocking end is located inside the container; the fixed sleeve is sleeved on the outer periphery of the protection sleeve and is sealed and fixedly connected to the wall; the connecting component is connected to one end of the fixed sleeve located outside the container, and the connecting component includes a through hole coaxial with the protective sleeve; wherein the protection sleeve extends into or passes through the through hole and is detachably sealed and connected to the connecting component.
[0006] In an example of a protective device for a temperature measuring element of the present invention, the connecting assembly includes a fixing member, a sealing structure and a locking member; the fixing member is fixedly connected to one end of the fixing sleeve located outside the container; the sealing structure is sleeved on the outer circumference of the protective sleeve; the locking member is detachably connected to the fixing member; the sealing structure is disposed between the fixing member and the locking member; and the sealing structure is configured to achieve a sealed and fixed connection with the protective sleeve when the locking member and the fixing member are locked.
[0007] In an example of a protection device for a temperature measuring element of the utility model, the sealing structure includes a first cone sleeve and a second cone sleeve which are sequentially sleeved on the outside of the protective sleeve, the end of the first cone sleeve with a smaller diameter faces the fixing part, and the fixing part includes a first cone surface which matches with the outer cone surface of the first cone sleeve, the smaller end of the second cone sleeve faces the end of the first cone sleeve with a larger diameter, and the inner hole of the first cone sleeve near one end of the second cone sleeve includes a second cone surface which matches with the outer cone surface of the first cone sleeve.
[0008] In one example of a protective device for a temperature measuring element of the utility model, the locking piece includes a stepped hole coaxial with the protective sleeve, and along the direction away from the container, the stepped hole includes a threaded hole section, a stop hole section and a straight hole section arranged in sequence, the threaded hole cooperates with the external thread arranged on the fixing piece, the protective sleeve passes through the straight hole section, and the diameter of the stop hole section is smaller than the minor diameter of the threaded hole section and larger than the diameter of the straight hole section, so as to form a stop surface for stopping the end face of the larger diameter of the second cone sleeve.
[0009] In an example of a protective device for a temperature measuring element of the utility model, the fixed sleeve includes a first pipe segment and a second pipe segment connected, the first pipe segment is welded and fixed to the wall, and the end of the second pipe segment away from the first pipe segment is welded and fixed to the fixing piece, and the outer diameter of the second pipe segment is equal to the outer diameter of the fixing piece.
[0010] In an example of the protection device for the temperature measuring element of the present invention, the outer diameter of the first pipe section is greater than the outer diameter of the second pipe section.
[0011] In an example of the protection device for the temperature measuring element of the present invention, the wall thickness of the protection sleeve is 0.72 mm to 2 mm.
[0012] In an example of the protection device of the temperature measuring element of the utility model, the sealing end of the protection sleeve is sealed by sealing welding or welding a blocking plate.
[0013] The utility model also provides a temperature measuring component, comprising the protection device of the temperature measuring element described in any one of the above items.
[0014] In an example of a temperature measuring component of the temperature measuring element of the utility model, the temperature measuring component also includes a temperature measuring probe, a display element and a conductive wire. The temperature measuring probe is located inside the protective sleeve, the display element is located outside the protective sleeve, the conductive wire connects the temperature measuring probe and the display element, and the conductive wire and the open end of the protective sleeve are sealed and fixed.
[0015] The protection device of the temperature measuring element of the utility model provides a connecting component, and configures the protection sleeve and the connecting component as a detachable sealed connection. On the one hand, it replaces the original process of sealing between the protection sleeve and the fixed sleeve by welding, which reduces the process difficulty and processing cost. On the other hand, the detachable connection method is adopted, which is convenient for the maintenance and replacement of wearing parts such as the protection sleeve, reducing the maintenance difficulty and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the structure of a protection device for a temperature measuring element in one embodiment of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure in which the protection device of the temperature measuring element is installed on the container in one embodiment of the utility model;
[0019] Figure 3 for Figure 2 A partial enlarged view of the middle A;
[0020] Figure 4 for Figure 3 A partial enlarged view of point C in the middle;
[0021] Figure 5 for Figure 2 A partial enlarged view of point B in the middle;
[0022] Figure 6 It is a structural schematic diagram of a temperature measuring component in one embodiment of the utility model.
[0023] Component number description
[0024] 1. Temperature measuring assembly; 10. Protection device for temperature measuring element; 100. Protection sleeve; 110. Open end; 120. Blocking end; 130. Blocking plate; 200. Fixed sleeve; 210. First pipe section; 220. Second pipe section; 300. Connecting assembly; 310. Fixing piece; 311. First cone surface; 320. Sealing structure; 321. First cone sleeve; 3211. Second cone surface; 322. Second cone sleeve; 330. Locking piece; 331. Threaded hole section; 332. Stop hole section; 333. Straight hole section; 334. Stop surface; 11. Temperature measuring probe; 12. Display element; 13. Conducting wire; 2. Container; 20. Wall. DETAILED DESCRIPTION
[0025] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.
[0026] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.
[0027] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.
[0028] See also Figures 1 to 6 The utility model provides a temperature measuring element protection device 10 and a temperature measuring component 1, which are installed on the wall 20 of the container 2 to protect the temperature measuring element. There is no limitation on the shape, structure and material of the container 2, including all containers 2 that need to measure the temperature of the materials contained therein. There is no limitation on the composition of the temperature measuring element, which can be any combination of elements that can measure the temperature of the materials in the container 2.
[0029] See also Figure 1 and Figure 2The protection device 10 of the temperature measuring element includes a protection sleeve 100, a fixed sleeve 200 and a connecting assembly 300. The protection sleeve 100 accommodates the temperature measuring element. The protection sleeve 100 passes through the wall 20. The protection sleeve 100 includes a blocking end 120 and an open end 110. The blocking end 120 is located inside the container 2. The temperature measuring element located inside the container 2 is sealed, and the temperature measuring element is isolated from the material to be measured to protect the temperature measuring element, thereby avoiding direct sealing between the temperature measuring element and the wall 20 and improving the reliability of the sealing.
[0030] See also Figure 1 and Figure 2 The fixed sleeve 200 is sleeved on the outer periphery of the protective sleeve 100 and is sealed and fixedly connected to the wall body 20; in order to improve the temperature measuring accuracy of the temperature measuring element, the wall thickness of the protective sleeve 100 is as thin as possible, but too thin will affect the strength of the protective sleeve 100. In the present technical solution, the protective sleeve 100 is indirectly installed on the wall body 20 through the fixed sleeve 200, which can reduce the requirements for the strength of the protective sleeve 100 itself, so that it can obtain a thinner wall thickness while also having a stronger fixing strength and sealing performance. The shape, material and sealed fixed connection form of the fixed sleeve 200 with the wall body 20 are not limited, for example, it can be threaded connection, riveting, bonding or welding. In this embodiment, welding connection is used for fixing, which is firm and reliable and has a good sealing function.
[0031] For further information, see Figure 2 and Figure 3 In order to prevent the material in the container 2 from leaking from the gap between the protective sleeve 100 and the fixed sleeve 200, it is necessary to seal the protective sleeve 100 and the fixed sleeve 200, and connect the connecting component 300 to one end of the fixed sleeve 200 located outside the container 2, and the connecting component 300 includes a through hole coaxial with the protective sleeve 100; specifically, the protective sleeve 100 extends into or passes through the through hole and is detachably sealed and connected to the connecting component 300, and the protective sleeve 100 is sealed at the connecting component 300 to reduce the leakage of materials from the protective sleeve 100 and the fixed sleeve. In order to reduce the risk of leakage in the gap between the protective sleeve 100 and the fixed sleeve 200, the original method of welding and sealing the protective sleeve 100 and the fixed sleeve 200 is changed. Since the wall thickness difference between the protective sleeve 100 and the fixed sleeve 200 is large, the welding difficulty is high and welding quality problems are prone to occur. This setting can reduce the process difficulty, reduce the processing cost, and improve the product yield. On the other hand, a detachable connection method is adopted, which is convenient for the maintenance and replacement of wearing parts such as the protective sleeve 100, reducing the maintenance difficulty and maintenance cost. At the same time, since the protective sleeve 100 does not need to be welded, a thinner wall thickness can be used, further improving the accuracy of temperature measurement.
[0032] It should be noted that the connection method of the connection component 300 and the fixed sleeve 200 is not limited, and can be threaded connection, clamping connection or welding connection, etc., as long as the connection component 300 and the fixed sleeve 200 can be reliably and stably sealed. In this embodiment, the connection component 300 and the fixed sleeve 200 are welded, which is stable and reliable and has a good sealing effect. The form and structure of the connection component 300 are not limited here, for example, it can be any pipe joint with sealing performance, as long as it can achieve sealing and detachable installation with the protective sleeve 100.
[0033] See also Figure 2 and Figure 3 In an example of the protection device 10 of the temperature measuring element of the utility model, the connecting assembly 300 includes a fixing member 310, a sealing structure 320 and a locking member 330. The fixing member 310 is fixedly connected to one end of the fixing sleeve 200 located outside the container 2. The sealing structure 320 is sleeved on the outer periphery of the protection sleeve 100. The locking member 330 is detachably connected to the fixing member 310. The detachable connection method is not limited and can be a threaded connection or a clamping connection. The sealing structure 320 is arranged between the fixing member 310 and the locking member 330. The sealing structure 320 is configured to be able to achieve a sealed and fixed connection with the protection sleeve 100 when the locking member 330 and the fixing member 310 are locked. The form of the sealing mechanism is not limited. The sealing structure 320 is used to replace the original method of welding and sealing the protective sleeve 100 and the fixed sleeve 200. Since the wall thickness difference between the protective sleeve 100 and the fixed sleeve 200 is large, the welding difficulty is high, and welding quality problems are prone to occur. This setting can reduce the process difficulty, reduce the processing cost, and improve the product yield. On the other hand, a detachable connection method is used to facilitate the maintenance and replacement of wearing parts such as the protective sleeve 100, reducing the maintenance difficulty and maintenance cost. At the same time, this technical solution simplifies the overall structure of the protection device 10 of the temperature measuring element, achieves a simple and compact structure, and reduces the number of accessories.
[0034] See also Figure 3 and Figure 4In an example of a protection device 10 for a temperature measuring element of the utility model, the sealing structure 320 includes a first cone sleeve 321 and a second cone sleeve 322 which are sequentially sleeved on the outside of the protection sleeve 100, the first cone sleeve 321 is located between the second cone sleeve 322 and the fixing member 310, and the end of the first cone sleeve 321 with a smaller diameter faces the fixing member 310, the fixing member 310 includes a first cone surface 311 which matches with the outer cone surface of the first cone sleeve 321, the smaller end of the second cone sleeve 322 faces the end of the first cone sleeve 321 with a larger diameter, and the inner hole of the first cone sleeve 321 close to one end of the second cone sleeve 322 includes a second cone surface 3211 which matches with the outer cone surface of the second cone sleeve 322.
[0035] See also Figure 3 and Figure 4 In an example of the protection device 10 of the temperature measuring element of the utility model, the locking member 330 includes a stepped hole coaxial with the protection sleeve 100. Along the direction away from the container 2, the stepped hole includes a threaded hole section 331, a stop hole section 332 and a straight hole section 333 arranged in sequence. The threaded hole cooperates with the external thread set on the fixing member 310. The protection sleeve 100 passes through the straight hole section 333. The diameter of the stop hole section 332 is smaller than the minor diameter of the threaded hole section 331 and larger than the diameter of the straight hole section 333, so as to form a stop surface 334 for stopping the end face of the larger diameter of the second cone sleeve 322.
[0036] Specifically, see Figure 3 and Figure 4, the first cone surface 311 of the fixing member 310 cooperates with the outer cone surface of the first cone sleeve 321, and the second cone surface 3211 of the first cone sleeve 321 cooperates with the outer cone surface of the second cone sleeve 322. During the locking process of the fixing member 310 and the locking member 330, the locking member 330 pushes the second cone sleeve 322 to move, and then pushes the first cone sleeve 321 to move. During the movement of the first cone sleeve 321, the first cone surface 311 and the outer cone surface of the first cone sleeve 321 move relatively. During the movement, the first cone sleeve 321 is subjected to radial pressure, which makes the small end of the first cone sleeve 321 pressed against the outer periphery of the protective sleeve 100. Due to the thin wall thickness of the protective sleeve 100, The first cone sleeve 321 undergoes plastic deformation and seals with the mating surface of the first cone sleeve 321. At the same time, based on the same principle, the large end face of the second cone sleeve 322 is subjected to radial pressure from the first cone sleeve 321 under the stopping action of the stop surface 334, so that the small end of the second cone sleeve 322 also forms a seal with the protective sleeve 100. The double sealing mechanism improves the sealing performance between the protective sleeve 100 and the connecting assembly 300. It should be noted that when the protective sleeve 100 is damaged and needs to be replaced, the locking piece 330 and the fixing piece 310 can be removed and then locked in the same way, which simplifies the maintenance and replacement process and is simple and easy to operate.
[0037] See also Figure 2 and Figure 3 Considering that the connection between the fixed sleeve 200 and the wall 20 of the container 2 requires strong rigidity, and the portion where the fixed sleeve 200 is welded to the fixing member 310 is preferably selected to be equal to the outer diameter of the fixing member 310, in an example of the protection device 10 of the temperature measuring element of the utility model, the fixed sleeve 200 includes a first pipe section 210 and a second pipe section 220 connected, the first pipe section 210 is welded and fixed to the wall 20, and the end of the second pipe section 220 away from the first pipe section 210 is welded and fixed to the fixing member 310, and the outer diameter of the second pipe section 220 is equal to the outer diameter of the fixing member 310, thereby improving the welding stability between the fixed sleeve 200 and the fixing member 310. It should be noted that the first pipe section 210 and the second pipe section 220 can be separately set and fixedly connected; the first pipe section 210 and the second pipe section 220 can also be integrally processed and formed. The inner diameters of the first pipe segment 210 and the second pipe segment 220 are not limited and can be equal or different; the outer diameters of the first pipe segment 210 and the second pipe segment 220 are not limited and can be equal or different.
[0038] See also Figure 2 and Figure 3In an example of the protection device 10 of the temperature measuring element of the utility model, the outer diameter of the first pipe segment 210 is greater than the outer diameter of the second pipe segment 220. Furthermore, in this embodiment, the first pipe segment 210 and the second pipe segment 220 are integrally formed and have the same inner diameters. This arrangement can not only improve the strength of the connection part with the wall body 20, but also take into account the welding stability between the fixed sleeve 200 and the fixing member 310.
[0039] Since the protective sleeve 100 does not need to be welded, a thinner wall thickness can be used to further improve the temperature measurement accuracy. In an example of the protective device 10 of the temperature measuring element of the present invention, please refer to Figure 1 The wall thickness of the protective sleeve 100 is 0.72 mm to 2 mm. The protective sleeve 100 within this range has better strength and enables the temperature measuring element to have higher temperature measuring accuracy.
[0040] See also Figure 1 and Figure 5 In an example of the protection device 10 of the temperature measuring element of the utility model, the sealing end 120 of the protection sleeve 100 is sealed by sealing welding or welding the plugging plate 130. The above two sealing methods mainly depend on the diameter of the protection sleeve 100. When the diameter is larger, the method of welding the plugging plate 130 will be more reliable and stable. When the diameter is smaller, the sealing welding method is simpler and more reliable.
[0041] See also Figure 6 The utility model also provides a temperature measuring component 1, comprising a protection device 10 for the temperature measuring element as described in any one of the above items.
[0042] Please continue reading Figure 6 In an example of a temperature measuring component 1 of a temperature measuring element of the utility model, the temperature measuring component 1 also includes a temperature measuring probe 11, a display element 12 and a conductive wire 13. It should be noted that the temperature measuring probe 11, the display element 12 and the conductive wire 13 are all temperature measuring elements, and the protection device of the temperature measuring element in this embodiment is mainly used to protect the two temperature measuring elements, the temperature measuring probe 11 and the conductive wire 13. Specifically, the temperature measuring probe 11 is located in the protective sleeve 100, the display element 12 is located outside the protective sleeve 100, the conductive wire 13 connects the temperature measuring probe 11 and the display element 12, and the conductive wire 13 and the open end 110 of the protective sleeve 100 are sealed and fixed. The sealing and fixing method can be welding or applying sealant, etc. In this embodiment, the sealing is performed by applying sealant. The sealing here is mainly to prevent the entry of external pollutants.
[0043] The protection device of the temperature measuring element of the utility model is provided with a connection component, and the protection sleeve and the connection component are provided with a detachable sealed connection. On the one hand, it replaces the original process of sealing between the protection sleeve and the fixed sleeve by welding, which reduces the process difficulty and processing cost. On the other hand, the detachable connection method is adopted, which is convenient for the maintenance and replacement of wearing parts such as the protection sleeve, and reduces the maintenance difficulty and maintenance cost. Therefore, the utility model effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. The above embodiments are only illustrative of the principles and effects of the utility model, and are not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.
Claims
1. A temperature measuring element protection device, installed on the wall of a container to protect the temperature measuring element, characterized in that: include: A protective sleeve, accommodating the temperature measuring element, the protective sleeve passes through the wall, the protective sleeve comprises a blocking end and an open end, and the blocking end is located inside the container; A fixed sleeve, which is sleeved on the outer circumference of the protective sleeve and is sealed and fixedly connected to the wall; A connecting assembly connected to one end of the fixed sleeve located outside the container, the connecting assembly comprising a through hole coaxial with the protective sleeve; Wherein, the protective sleeve extends into or passes through the through hole and is detachably sealed and connected to the connecting component.
2. The protection device for the temperature measuring element according to claim 1, characterized in that: The connecting assembly includes a fixing member, a sealing structure and a locking member. The fixing member is fixedly connected to one end of the fixing sleeve located outside the container. The sealing structure is sleeved on the outer circumference of the protective sleeve. The locking member is detachably connected to the fixing member. The sealing structure is arranged between the fixing member and the locking member. The sealing structure is configured to achieve a sealed and fixed connection with the protective sleeve when the locking member and the fixing member are locked.
3. The protection device for the temperature measuring element according to claim 2, characterized in that: The sealing structure includes a first cone sleeve and a second cone sleeve which are sequentially sleeved on the outside of the protective sleeve, the first cone sleeve is located between the second cone sleeve and the fixing member, and the end of the first cone sleeve with a smaller diameter faces the fixing member, the fixing member includes a first cone surface matching with the outer cone surface of the first cone sleeve, the smaller end of the second cone sleeve faces the end of the first cone sleeve with a larger diameter, and the inner hole of the first cone sleeve near one end of the second cone sleeve includes a second cone surface matching with the outer cone surface of the second cone sleeve.
4. The protection device for the temperature measuring element according to claim 3, characterized in that: The locking piece includes a stepped hole coaxial with the protective sleeve. Along the direction away from the container, the stepped hole includes a threaded hole section, a stop hole section and a straight hole section arranged in sequence. The threaded hole cooperates with the external thread arranged on the fixing piece. The protective sleeve passes through the straight hole section. The diameter of the stop hole section is smaller than the minor diameter of the threaded hole section and larger than the diameter of the straight hole section, so as to form a stop surface for stopping the end face of the larger diameter of the second cone sleeve.
5. The protection device for the temperature measuring element according to claim 2, characterized in that: The fixed sleeve includes a first pipe section and a second pipe section connected to each other. The first pipe section is welded and fixed to the wall body, and one end of the second pipe section away from the first pipe section is welded and fixed to the fixing piece. The outer diameter of the second pipe section is equal to the outer diameter of the fixing piece.
6. The protection device for the temperature measuring element according to claim 5, characterized in that: The outer diameter of the first pipe section is greater than the outer diameter of the second pipe section.
7. The protection device for the temperature measuring element according to claim 1, characterized in that: The wall thickness of the protective sleeve is 0.72 mm to 2 mm.
8. The protection device for the temperature measuring element according to claim 1, characterized in that: The plugging end of the protective sleeve is sealed by sealing welding or welding a plugging plate.
9. A temperature measuring component, characterized in that: A protection device comprising the temperature measuring element according to any one of claims 1 to 8.
10. The temperature measuring assembly according to claim 9, characterized in that: The temperature measuring component also includes a temperature measuring probe, a display element and a conductive wire. The temperature measuring probe is located inside a protective sleeve, the display element is located outside the protective sleeve, the conductive wire connects the temperature measuring probe and the display element, and the conductive wire and the open end of the protective sleeve are sealed and fixed.