High-precision temperature measuring device based on PT1000 temperature sensor

Abstract

The utility model discloses a high-precision temperature measuring device based on a PT1000 temperature sensor, which comprises a temperature measuring mechanism, an electric telescopic rod and a display screen, the temperature measuring mechanism comprises a PT1000 temperature sensor assembly, a limiting plate, a limiting spring, a heat conducting plate and a heat conducting cover, and the limiting plate is arranged above the PT1000 temperature sensor assembly. And the bottom of a detection probe on the PT1000 temperature sensor assembly is in contact with the heat conducting plate. According to the high-precision temperature measuring device based on the PT1000 temperature sensor, an electric telescopic rod pulls a base to move upwards to fix a to-be-detected electric wire on the inner sides of a heat conduction cover and a limiting cover, and at the moment, a heat conduction plate at the top of the heat conduction cover makes contact with a detection element of a PT1000 temperature sensor assembly; therefore, the temperature detection of the electric wire can be completed under the conduction action of the heat conduction cover and the heat conduction plate, and the PT1000 temperature sensor assembly is always in contact with the heat conduction plate under the pushing and extrusion of the limiting spring and the limiting plate, so that the detection accuracy is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature measuring device technical field, concretely is a kind of high-precision temperature measuring device based on PT1000 temperature sensor. BACKGROUND

[0002] PT1000 is platinum thermal resistance, its resistance is proportional to the change of temperature, the resistance of PT1000 and temperature change relationship is: when PT1000 temperature is 0 ℃, its resistance is 1000 ohms, at 100 ℃, its resistance is about 1385.055 ohms.Its industrial principle: when PT100 is 0 degrees Celsius, his resistance is 100 ohms, its resistance will increase with temperature rise at uniform speed.Medical, motor, industry, temperature calculation, resistance calculation and high-precision temperature equipment, application range is very extensive, to prevent circuit overheating needs to use temperature measuring device to the temperature of the circuit wire, after searching, find that temperature measuring device in the prior art typical such as the bus temperature measuring device of Publication No.CN110031120A, including detection equipment, display, communication equipment and insulating partition, the top of the insulating partition is provided with two threaded holes, adjacent the insulating partition is provided with two high-temperature-resistant plates, two high-temperature-resistant plates are provided with bus between, the detection equipment includes fixed shell, the bottom of the fixed shell is provided with through hole, the through hole is fixedly installed with corrugated pipe in the inside, the bottom of the corrugated pipe is connected with fixed tube, the bottom end of the fixed tube is provided with heat conduction plate.Its main feature is that the temperature of bus and the smoke generated by the high temperature of bus can be detected, so that people can find problems in time.

[0003] In summary, the existing temperature measuring device is easy to affect the accuracy of detection when the temperature of the circuit wire is measured due to the loose contact between the detection element of temperature sensor and the wire, and the existing equipment needs to be improved for the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high-precision temperature measuring device based on PT1000 temperature sensor to solve the problem that the existing temperature measuring device is easy to affect the accuracy of detection when the temperature of the circuit wire is measured due to the loose contact between the detection element of temperature sensor and the wire in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-precision temperature measuring device based on PT1000 temperature sensor, including temperature measuring mechanism, electric telescopic rod and display screen,

[0006] The temperature measuring mechanism comprises a PT1000 temperature sensor assembly, a limiting plate, a limiting spring, a heat-conducting plate and a heat-conducting cover, the limiting plate is arranged above the PT1000 temperature sensor assembly, the bottom of a detection probe on the PT1000 temperature sensor assembly is in contact with the heat-conducting plate, and the heat-conducting plate is arranged on the top of the heat-conducting cover, and the heat-conducting cover and the limiting cover are both in the shape of a semicircular ring.

[0007] Preferably, the limiting plate and the PT1000 temperature sensor assembly are arranged in the installation groove arranged in the installation base.

[0008] Preferably, the side of the limiting plate away from the PT1000 temperature sensor assembly is connected to the inner top of the installation groove through the limiting spring, and the limiting spring is distributed on the limiting plate at equal intervals.

[0009] Preferably, the heat-conducting cover is clamped on the bottom of the installation base, and the heat-conducting cover is consistent with the inner and outer diameters of the limiting cover.

[0010] Preferably, the limiting cover is clamped on the side top of the base, and the limiting cover and the heat-conducting cover are combined to be cylindrical.

[0011] Preferably, the top of the electric telescopic rod is connected to the inner top of the cavity, and the cavity is arranged on the side bottom of the installation base.

[0012] Preferably, the end of the electric telescopic rod away from the installation base is connected to the base, and the base is arranged below the installation base, and the side of the base is provided with a second mounting hole.

[0013] Preferably, the display screen is arranged on the side wall of the installation base, and the first mounting hole is arranged on the side of the top of the installation base.

[0014] Compared with the prior art, the high-precision temperature measuring device based on a PT1000 temperature sensor has the advantages that,

[0015] (1) The temperature measuring mechanism and the electric telescopic rod are used in cooperation to effectively solve the problem that the existing temperature measuring device is prone to affecting the detection accuracy when the temperature sensor detection element is in loose contact with the electric wire during temperature detection of the electric wire, the electric telescopic rod pulls the base to move upwards to fix the electric wire to be detected on the inner side of the heat-conducting cover and the limiting cover, the heat-conducting plate on the top of the heat-conducting cover is in contact with the PT1000 temperature sensor assembly detection element at this time, the temperature detection of the electric wire is completed through the conduction of the heat-conducting cover and the heat-conducting plate, the PT1000 temperature sensor assembly is always in contact with the heat-conducting plate under the pushing and extruding of the limiting spring and the limiting plate, and the detection accuracy is ensured.

[0016] (2) The utility model discloses through the cooperation of first installation hole and second installation hole can effectively solve, the single installation structure does not satisfy the detection demand of different electric wire problem, and staff can select and use first installation hole or second installation hole cooperation bolt and install and fix the device according to actual demand, can also whole clamping and fixing the device on electric wire through the heat shield and spacing adjustable limit cover to satisfy different use demand, and the fixed process is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the isometric view of the utility model;

[0018] Figure 2 It is the overall cross-sectional structure schematic view of the utility model;

[0019] Figure 3 It is the utility model Figure 2 the enlarged structure schematic view of A place in the middle;

[0020] Figure 4 It is the overall structure schematic view of the utility model device when not using.

[0021] In the drawing: 1, mounting seat; 2, installation slot; 3, temperature measuring mechanism; 301, PT1000 temperature sensor assembly; 302, limit plate; 303, limit spring; 304, heat conduction plate; 305, heat shield; 4, limit cover; 5, base; 6, cavity; 7, electric telescopic rod; 8, display screen; 9, first installation hole; 10, second installation hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a high-precision temperature measuring device based on PT1000 temperature sensor,

[0024] Embodiment one

[0025] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the temperature measuring mechanism 3 comprises a PT1000 temperature sensor assembly 301, a limiting plate 302, a limiting spring 303, a heat-conducting plate 304 and a heat-conducting cover 305, the limiting plate 302 is arranged above the PT1000 temperature sensor assembly 301, the bottom of the detection probe on the PT1000 temperature sensor assembly 301 is in contact with the heat-conducting plate 304, and the heat-conducting plate 304 is arranged on the top of the heat-conducting cover 305, and the heat-conducting cover 305 and the limiting cover 4 are both in the shape of a semicircular ring.

[0026] In a further embodiment, the limiting plate 302 and the PT1000 temperature sensor assembly 301 are both arranged inside the mounting groove 2, and the mounting groove 2 is opened in the inside of the mounting seat 1.

[0027] In a further embodiment, the side of the limiting plate 302 away from the PT1000 temperature sensor assembly 301 is connected to the inner top of the mounting groove 2 through the limiting spring 303, the limiting spring 303 is distributed on the limiting plate 302 at equal intervals, and the heat-conducting plate 304 penetrates and is slidingly connected to the mounting seat 1, that is, when the heat-conducting cover 305 is disassembled, the heat-conducting plate 304 can be disassembled together.

[0028] In a further embodiment, the top of the electric telescopic rod 7 is connected to the inner top of the cavity 6, and the cavity 6 is opened in the bottom of one side of the mounting seat 1.

[0029] In a further embodiment, the end of the electric telescopic rod 7 away from the mounting seat 1 is connected to the base 5, and the base 5 is arranged below the mounting seat 1, and the second mounting hole 10 is opened in the side surface of the base 5.

[0030] In a further embodiment, the display screen 8 is arranged on one side wall of the mounting seat 1, and the first mounting hole 9 is opened in the top side of the mounting seat 1.

[0031] Specifically, in the actual working process, first, according to the situation, the device is installed in the appropriate position by penetrating the first mounting hole 9 or the second mounting hole 10 with a bolt, then the electric wire to be detected is placed inside the heat-conducting cover 305 and the limiting cover 4, then the power supply is connected to operate the display screen 8 to start the device, the electric telescopic rod 7 pulls the base 5 to move upward to fix the electric wire to be detected inside the heat-conducting cover 305 and the limiting cover 4, and at this time, the heat-conducting plate 304 on the top of the heat-conducting cover 305 is in contact with the detection element of the PT1000 temperature sensor assembly 301, so that the temperature detection of the electric wire can be completed through the conduction of the heat-conducting cover 305 and the heat-conducting plate 304, and the detected temperature is displayed in real time on the display screen 8 under the cooperation of the control element.

[0032] Embodiment two

[0033] It should be understood that the present embodiment includes all the technical features described above and is further described in detail.

[0034] As Figure 1 , Figure 2 and Figure 4 shown, in further embodiments, the heat-conducting cover 305 is clamped on the bottom of the mounting base 1, and the heat-conducting cover 305 is consistent with the inner and outer diameters of the limiting cover 4.

[0035] In further embodiments, the limiting cover 4 is clamped on the top of one side of the base 5, and the limiting cover 4 and the heat-conducting cover 305 are combined to form a cylindrical shape.

[0036] Specifically, the staff can disassemble and replace the heat-conducting cover 305 and the limiting cover 4 with different inner diameters according to the size of the electric wire to be detected, so as to facilitate the device to fix electric wires of different sizes, and the clamping connection makes the disassembly and replacement process more convenient.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-precision temperature measuring device based on PT1000 temperature sensor, comprising a temperature measuring mechanism (3), an electric telescopic rod (7) and a display screen (8), characterized in that: the temperature measuring mechanism (3) comprises a PT1000 temperature sensor assembly (301), a limiting plate (302), a limiting spring (303), a heat conduction plate (304) and a heat conduction cover (305), the limiting plate (302) is arranged above the PT1000 temperature sensor assembly (301), the bottom of the detection probe on the PT1000 temperature sensor assembly (301) is in contact with the heat conduction plate (304), the heat conduction plate (304) is arranged on the top of the heat conduction cover (305), and the heat conduction cover (305) and the limiting cover (4) are both semicircular rings.

2. The high-precision temperature measuring device based on PT1000 temperature sensor according to claim 1, characterized in that: The limiting plate (302) and the PT1000 temperature sensor assembly (301) are arranged in the installation groove (2), and the installation groove (2) is arranged in the installation base (1).

3. The high-precision temperature measuring device based on PT1000 temperature sensor according to claim 1, characterized in that: The side of the limiting plate (302) away from the PT1000 temperature sensor assembly (301) is connected with the inner top of the installation groove (2) through the limiting spring (303), and the limiting spring (303) is distributed on the limiting plate (302) at equal intervals.

4. The high-precision temperature measuring device based on PT1000 temperature sensor according to claim 1, characterized in that: The heat conduction cover (305) is clamped on the bottom of the installation base (1), and the heat conduction cover (305) is consistent with the inner and outer diameters of the limiting cover (4).

5. The high-precision temperature measuring device based on PT1000 temperature sensor according to claim 1, characterized in that: The limiting cover (4) is clamped on the top of one side of the base (5), and the limiting cover (4) and the heat conduction cover (305) are surrounded in a cylindrical shape.

6. The high-precision temperature measuring device based on PT1000 temperature sensor according to claim 1, characterized in that: The top of the electric telescopic rod (7) is connected with the inner top of the cavity (6), and the cavity (6) is arranged on the bottom of one side of the installation base (1).

7. The high-precision temperature measuring device based on PT1000 temperature sensor according to claim 1, characterized in that: The end of the electric telescopic rod (7) away from the installation base (1) is connected with the base (5), and the base (5) is arranged below the installation base (1), and the second mounting hole (10) is arranged on the side of the base (5).

8. The high-precision temperature measuring device based on PT1000 temperature sensor according to claim 1, characterized in that: The display screen (8) is arranged on the side wall of the installation base (1), and the first mounting hole (9) is arranged on the top side of the installation base (1).

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