High-temperature magnetic type temperature sensor

Abstract

The utility model relates to the related technical field of temperature sensors, in particular to a high-temperature magnetic type temperature sensor, which comprises a sensor main body, a packaging shell and a magnetic mechanism, the magnetic mechanism is arranged on the surface of the packaging shell, and a heat insulation protective sleeve is sleeved on the surface of a signal transmission line. According to the high-temperature magnetic type temperature sensor, through the arrangement of the magnetic mechanism, firstly, the surface of the packaging shell is sleeved with the magnetic block made of the samarium cobalt permanent magnet material, meanwhile, the positioning block is embedded into the positioning groove, and when the positioning block is completely embedded into the positioning groove, the magnetic block is inserted into the positioning groove; limiting holes formed in one sides of the surfaces of the magnetic blocks are aligned with threaded grooves formed in one sides of the surfaces of the packaging shells in position, then one ends of bolts penetrate through the magnetic blocks through the limiting holes and then are in threaded connection with the packaging shells through the threaded grooves, the three sets of bolts are tightened in sequence, and at the moment, the magnetic blocks are fixed to the surfaces of the packaging shells through the bolts. Therefore, when the sensor main body is used, the sensor main body can be adsorbed on the surface of which the temperature needs to be detected through the magnetic block.

Description

Technical Field

[0001] The utility model relates to the technical field related to temperature sensors, and in particular to a high-temperature magnetic temperature sensor. Background Art

[0002] A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. Temperature sensors are the core component of temperature measuring instruments and come in a wide variety. They can be categorized by measurement method into contact and non-contact types, and by sensor material and electronic component characteristics into thermal resistors and thermocouples. A magnetic temperature sensor is a temperature measurement device with a unique design and functionality. Its main feature is its magnetic attraction, allowing it to adhere to metal surfaces through magnetic force, allowing for convenient temperature measurement without the need for complex mounting methods. Accurate temperature measurement in high-temperature environments is often required in many fields, including industrial production, aerospace, and energy. Therefore, a high-temperature magnetic temperature sensor is particularly desirable.

[0003] However, in the existing high-temperature magnetic temperature sensors, the magnetic device of most magnetic temperature sensors is fixedly connected to the sensor body during use, so when the magnetic device needs to be disassembled and replaced, the operation is relatively cumbersome, affecting its detection efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide a high-temperature magnetic temperature sensor to solve the problem of the existing high-temperature magnetic temperature sensor proposed in the above-mentioned background technology. During use, the magnetic device of most magnetic temperature sensors is fixedly connected to the sensor body, so when the magnetic device needs to be disassembled and replaced, the operation is relatively cumbersome, which affects its detection efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a high-temperature magnetic temperature sensor, comprising a sensor body, a packaging shell, and a magnetic attraction mechanism, wherein the packaging shell is mounted on the surface of the sensor body, and the surface of the packaging shell is provided with a magnetic attraction mechanism, one end of the sensor body is connected to a signal transmission line, and the surface of the signal transmission line is provided with a heat-insulating protective cover;

[0006] The magnetic attraction mechanism includes a positioning groove, a threaded groove, a magnetic block, a limiting hole, a positioning block and a bolt. A positioning groove is provided on one side of the surface of the packaging shell, a threaded groove is provided on one side of the surface of the packaging shell, a magnetic block is sleeved on the surface of the packaging shell, a limiting hole is provided on one side of the surface of the magnetic block, a positioning block is fixedly connected to the inner wall of the magnetic block, and a bolt is passed through the inside of the limiting hole.

[0007] Preferably, the sensor body is a K-type thermocouple, and the packaging shell is made of stainless steel.

[0008] Preferably, the positioning groove matches the size of the positioning block, and the positioning block is embedded in the positioning groove.

[0009] Preferably, three groups of the thread grooves are provided, and three groups of the limiting holes are provided, and the thread grooves and the limiting holes are aligned with each other.

[0010] Preferably, one end of the bolt passes through the magnetic block through the limiting hole, and one end of the bolt is threadedly connected to the packaging shell through a thread groove.

[0011] Preferably, the magnetic block is made of samarium cobalt permanent magnet material, and the signal transmission line is a high-temperature resistant shielded twisted pair cable.

[0012] Compared with the prior art, the beneficial effect of the present invention is that the high-temperature magnetic temperature sensor, through the setting of the magnetic mechanism, during use, only needs to completely embed the positioning block inside the positioning groove to achieve the alignment of the limit hole and the thread groove position, and then tighten the bolts to fix the magnetic block on the surface of the packaging shell, and the disassembly and assembly operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side view of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the exploded structure of the magnetic attraction mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the package shell and the positioning block cooperating with each other in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the thermal insulation protective cover and the signal transmission line cooperating with each other in the present utility model.

[0017] In the figure: 1. Sensor body; 2. Package shell; 3. Magnetic attraction mechanism; 301. Positioning groove; 302. Threaded groove; 303. Magnetic block; 304. Limiting hole; 305. Positioning block; 306. Bolt; 4. Signal transmission line; 5. Thermal insulation protective cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4The utility model provides a technical solution: a high-temperature magnetic temperature sensor, comprising a sensor body 1, a packaging shell 2 and a magnetic attraction mechanism 3. The packaging shell 2 is mounted on the surface of the sensor body 1, and the surface of the packaging shell 2 is provided with the magnetic attraction mechanism 3. One end of the sensor body 1 is connected to a signal transmission line 4, and the surface of the signal transmission line 4 is covered with a heat insulation protective cover 5.

[0020] The magnetic attraction mechanism 3 includes a positioning groove 301, a thread groove 302, a magnetic block 303, a limiting hole 304, a positioning block 305 and a bolt 306. A positioning groove 301 is provided on one side of the surface of the encapsulating shell 2, a thread groove 302 is provided on one side of the surface of the encapsulating shell 2, a magnetic block 303 is sleeved on the surface of the encapsulating shell 2, a limiting hole 304 is provided on one side of the surface of the magnetic block 303, a positioning block 305 is fixedly connected to the inner wall of the magnetic block 303, and a bolt 306 is passed through the interior of the limiting hole 304. Through the arrangement of the positioning groove 301, the thread groove 302, the magnetic block 303, the limiting hole 304, the positioning block 305 and the bolt 306, when in use, first place the magnetic block 3 of samarium cobalt permanent magnet material 03 is sleeved on the surface of the packaging shell 2, and the positioning block 305 is embedded in the inside of the positioning groove 301. When the positioning block 305 is completely embedded in the inside of the positioning groove 301, the limiting hole 304 opened on one side of the surface of the magnetic block 303 is aligned with the threaded groove 302 opened on one side of the surface of the packaging shell 2. Then, one end of the bolt 306 is passed through the limiting hole 304 through the magnetic block 303 and then threadedly connected to the packaging shell 2 through the threaded groove 302. The three groups of bolts 306 are tightened in sequence. At this time, the bolts 306 fix the magnetic block 303 on the surface of the packaging shell 2, so that when the sensor body 1 is in use, the sensor body 1 can be adsorbed on the surface of the required temperature detection through the magnetic block 303.

[0021] Furthermore, the sensor body 1 is a K-type thermocouple, and the packaging shell 2 is made of stainless steel. Through the setting of the packaging shell 2, when in use, the packaging shell 2 made of stainless steel can protect the sensor body 1 and prevent external physical damage, chemical corrosion, etc. from damaging the sensitive components inside the sensor body 1, thereby ensuring the normal operation and service life of the sensor. At the same time, it provides mechanical support to avoid position displacement or damage of the sensor body 1 due to factors such as vibration and impact, and can prevent pollutants such as dust, water vapor, and oil from entering the interior of the sensor body 1, ensuring that the sensor body 1 can still accurately measure under various harsh environmental conditions.

[0022] Furthermore, the positioning groove 301 matches the size of the positioning block 305, and the positioning block 305 is embedded in the interior of the positioning groove 301. Through the setting of the positioning groove 301 and the positioning block 305, when in use, when the positioning block 305 is completely embedded in the interior of the positioning groove 301, the position of the limiting hole 304 and the threaded groove 302 can be aligned, which facilitates the penetration operation of the bolt 306.

[0023] Furthermore, three groups of thread grooves 302 are provided, and three groups of limiting holes 304 are provided. The thread grooves 302 are aligned with the limiting holes 304. Through the setting of the thread grooves 302, when in use, the thread grooves 302 can facilitate the threaded connection between the bolts 306 and the packaging shell 2.

[0024] Furthermore, one end of the bolt 306 passes through the magnetic block 303 through the limiting hole 304, and one end of the bolt 306 is threadedly connected to the packaging shell 2 through the thread groove 302. Through the setting of the bolt 306, when in use, one end of the bolt 306 passes through the limiting hole 304 and then is threadedly connected to the packaging shell 2 through the thread groove 302. At this time, the bolt 306 can fix the magnetic block 303 on the surface of the packaging shell 2.

[0025] Furthermore, the magnetic block 303 is a samarium cobalt permanent magnetic material, and the signal transmission line 4 is a high-temperature resistant shielded twisted pair cable. Through the setting of the magnetic block 303, when in use, when the magnetic block 303 is fixedly installed on the surface of the packaging shell 2, the magnetic block 303 of samarium cobalt permanent magnetic material can conveniently install and fix the sensor body 1 on the surface of the device required to detect the temperature through magnetic connection.

[0026] Working principle: First, the magnetic block 303 of samarium cobalt permanent magnet material is placed on the surface of the packaging shell 2, and the positioning block 305 is embedded in the inside of the positioning groove 301. When the positioning block 305 is completely embedded in the inside of the positioning groove 301, the limiting hole 304 opened on one side of the surface of the magnetic block 303 is aligned with the threaded groove 302 opened on one side of the surface of the packaging shell 2. Then, one end of the bolt 306 is passed through the limiting hole 304 through the magnetic block 303 and then threadedly connected to the packaging shell 2 through the threaded groove 302. The three groups of bolts 306 are tightened in sequence. At this time, the bolts 306 fix the magnetic block 303 on the surface of the packaging shell 2, so that when the sensor body 1 is used, the sensor body 1 can be adsorbed on the surface of the required temperature detection through the magnetic block 303. After sensing the temperature, the sensor body 1 transmits the signal to the inspector through the signal transmission line 4, so that the inspector can understand the surface temperature of the device.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature magnetic temperature sensor, comprising a sensor body (1), a packaging shell (2) and a magnetic attraction mechanism (3), characterized in that: A packaging shell (2) is installed on the surface of the sensor body (1), a magnetic attraction mechanism (3) is provided on the surface of the packaging shell (2), one end of the sensor body (1) is connected to a signal transmission line (4), and a heat insulation protective cover (5) is provided on the surface of the signal transmission line (4); The magnetic attraction mechanism (3) comprises a positioning groove (301), a thread groove (302), a magnetic block (303), a limiting hole (304), a positioning block (305) and a bolt (306); a positioning groove (301) is provided on one side of the surface of the packaging shell (2); a thread groove (302) is provided on one side of the surface of the packaging shell (2); a magnetic block (303) is sleeved on the surface of the packaging shell (2); a limiting hole (304) is provided on one side of the surface of the magnetic block (303); a positioning block (305) is fixedly connected to the inner wall of the magnetic block (303); and a bolt (306) is passed through the interior of the limiting hole (304).

2. The high-temperature magnetic temperature sensor according to claim 1, characterized in that: The sensor body (1) is a K-type thermocouple, and the packaging shell (2) is made of stainless steel.

3. The high-temperature magnetic temperature sensor according to claim 1, characterized in that: The positioning groove (301) and the positioning block (305) are of the same size, and the positioning block (305) is embedded in the positioning groove (301).

4. The high-temperature magnetic temperature sensor according to claim 1, characterized in that: The thread grooves (302) are provided in three groups, and the position-limiting holes (304) are provided in three groups. The thread grooves (302) and the position-limiting holes (304) are aligned.

5. The high-temperature magnetic temperature sensor according to claim 1, characterized in that: One end of the bolt (306) passes through the magnetic block (303) through the limiting hole (304), and one end of the bolt (306) is threadedly connected to the packaging shell (2) through the thread groove (302).

6. The high-temperature magnetic temperature sensor according to claim 1, characterized in that: The magnetic block (303) is made of samarium cobalt permanent magnet material, and the signal transmission line (4) is a high-temperature resistant shielded twisted pair line.

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