Surface-mounted thermal resistor

Abstract

A surface-mounted thermal resistor comprises a detection part, the detection part comprises a square protection tube, the square protection tube is arranged to be in a cuboid shape, a thermal resistor is fixedly mounted in the square protection tube, and the output end of the thermal resistor is connected with a transparent polytetrafluoroethylene wire and extends to the outside of the square protection tube. The end part of the square protection tube and the transparent polytetrafluoroethylene wire are in sealed compression joint with glue; according to the utility model, the square protection tube is in close contact with the surface of an object to be measured through the screw passing through the screw socket, the smooth part on the screw is in close contact with the screw socket, and the thermal resistor can receive heat transmitted from multiple directions at the same time, so that energy loss is reduced to the greatest extent, thereby realizing rapid and accurate temperature response and obtaining a temperature value; and meanwhile, the surface error is effectively reduced, the structure is simple, the installation is convenient and fast, and the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of thermal resistors, in particular to a surface-mounted thermal resistor. Background Art

[0002] Thermal resistors are the most commonly used temperature detectors in medium and low temperature areas. Thermal resistor temperature measurement is based on the property that the resistance of a metal conductor increases with increasing temperature. Its main features are high measurement accuracy and stable performance.

[0003] At present, surface temperature measurement of large equipment is also a very important parameter. The requirements for surface temperature measurement are also very strict and it is also an important link. However, the current equipment cannot meet the characteristics of easy installation, high precision, small error, fast response speed, etc., and the service life is short and cannot achieve high performance at the same time. Utility Model Content

[0004] The purpose of the present invention is to provide a surface mounted thermal resistor to solve the problems raised in the above background technology.

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

[0006] A surface-mounted thermal resistor comprises a detection portion, wherein the detection portion comprises a square protective tube, the square protective tube being arranged in a rectangular parallelepiped shape, a thermal resistor core being fixedly mounted inside the square protective tube, an output end of the thermal resistor core being connected to a transparent polytetrafluoroethylene wire and extending to the outside of the square protective tube, an end of the square protective tube being sealed and crimped with glue, a threaded opening being provided through the square protective tube, a detachable screw being provided in the threaded opening, and two areas being provided on the screw, a smooth portion and a threaded portion, the diameter of the smooth portion being the same as the diameter of the threaded opening, the two being tightly connected to increase heat transfer, and heat loss not being caused by a gap between the two.

[0007] Preferably, the other end of the transparent polytetrafluoroethylene wire is connected to an eight-core aircraft carrier plug, and the eight-core aircraft carrier plug is connected to the equipment.

[0008] Preferably, the square protective tube is made of aluminum and has a size of 6*6*31mm. The screw diameter is set to 3.3mm. Appropriate size and material are adopted so that the detection surface error value is minimized, the detection accuracy is most accurate, and the service life is long.

[0009] Preferably, the gap between the thermal resistor core and the inner wall of the square protection tube is filled with thermal conductive silica gel to increase thermal conductivity.

[0010] Preferably, the detection units may be single, double or multiple. By performing surface measurements with multiple detection units, the temperature of the entire surface can be measured more accurately.

[0011] The advantages and positive effects of the utility model are:

[0012] 1. The utility model uses a screw through the screw mouth to closely contact the square protective tube with the surface of the object to be measured. The smooth part of the screw is in close contact with the screw mouth. The thermal resistor core can simultaneously receive heat transmitted from multiple directions, minimizing energy loss, thereby achieving a fast and accurate response, obtaining temperature values, and reducing surface error values. At the same time, it has a simple structure, is easy to install, and has high efficiency.

[0013] 2. The utility model ensures the accuracy of measurement while guaranteeing the service life by limiting the size of the square protective tube and the screw diameter, solving the previous problems of too large size leading to rapid energy loss and slow heat transfer, and too small size leading to short service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall main structure of a surface-mounted thermal resistor of the present invention;

[0016] Figure 2 For this utility model Figure 1 Middle A is a schematic diagram of the enlarged structure;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the middle screw mouth and screw after connection;

[0018] Figure 4 This is a schematic diagram of the screw structure in the utility model.

[0019] The markings in the accompanying drawings are described as follows: 10, detection part; 11, transparent PTFE wire; 12, square protective tube; 13, thermal resistor core; 14, screw mouth; 15, screw; 16, smooth part; 17, threaded part; 18, eight-core aircraft carrier plug. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0021] The following combination Figure 1-4The utility model discloses a detailed description, for the convenience of description, now the direction of the following said is as follows: the up-down-left-right direction of the following said and the front-back direction of the front-back direction of the view direction are consistent with Figure 1 The up-down-left-right direction of the front-back direction of the view direction is consistent with Figure 1 It is the front view of the utility model device, Figure 1 The direction shown in the figure is consistent with the up-down-left-right direction of the front-back direction of the front view of the utility model device.

[0022] The utility model embodiment is further described in detail as follows:

[0023] Please refer to Figure 1-4 The utility model provides a kind of surface-mounted thermal resistance of an embodiment: a detection part 10, the square protection tube 12 is included in the detection part 10, the square protection tube 12 is set into cuboid shape, thermal resistance core body 13 is fixedly installed inside the square protection tube 12, the thermal resistance core body 13 output end is connected transparent tetrafluoride wire 11 and extends to the outside of the square protection tube 12, the square protection tube 12 end and the transparent tetrafluoride wire 11 between carry out adhesive sealing pressure joint, the square protection tube 12 is equipped with the screw port 14 that penetrates, the screw port 14 is equipped with detachable screw 15, the screw 15 is equipped with smooth place 16 and threaded place 17 two regions, the diameter size of the smooth place 16 is same with the diameter of the screw port 14, both can be closely connected to increase heat transfer, and heat loss will not be caused because of the gap between the two.

[0024] In addition, in an embodiment, the other end of the transparent tetrafluoride wire 11 is connected with the eight-core aircraft carrier plug 18, and the eight-core aircraft carrier plug 18 is connected with equipment.

[0025] In addition, in an embodiment, the square protection tube 12 is made of aluminum, and the size is 6*6*31; the diameter of the screw port 14 is 3.3 mm; moderate size and material are adopted, so that the surface error value of detection is minimum, the detection accuracy is most accurate, and the service life is long.

[0026] In addition, in an embodiment, the thermal resistance core body 13 and the gap between the inner wall of the square protection tube 12 are filled with heat-conducting silica gel, so as to increase the heat conductivity.

[0027] In addition, in an embodiment, the detection part 10 can be single, two or multiple, and the temperature of the whole surface can be more accurately measured by measuring the surface through multiple.

[0028] During specific implementation, the square protective tube 12 is placed on the surface of the object to be measured, and the screw 15 is inserted into the screw mouth 14 so that the smooth part 16 is in close contact with the wall of the screw mouth 14, and then the threaded part 17 is connected to the surface of the object to be measured, so that the square protective tube 12 is in close contact with the surface of the object to be measured. At this time, when the surface temperature of the detected object is transferred to the square protective tube 12, the heat can be quickly transferred to the thermal resistor core 13 from multiple directions of the square protective tube 12. The thermal resistor core 13 can receive the heat transferred from multiple directions, and then transmit the signal to the equipment for signal processing through the transparent polytetrafluoroethylene wire 11 and the eight-core aircraft carrier plug 18, thereby achieving a fast and accurate response, obtaining the temperature value, reducing the surface error value, and at the same time, the structure is simple, easy to install, and efficient.

[0029] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A surface mounted thermal resistor comprising a detection portion (10), characterized in that: The detection part (10) includes a square protection tube (12), the square protection tube (12) is arranged in a rectangular parallelepiped shape, a thermal resistor core (13) is fixedly installed inside the square protection tube (12), the output end of the thermal resistor core (13) is connected to a transparent polytetrafluoroethylene wire (11) and extends to the outside of the square protection tube (12), and the end of the square protection tube (12) and the transparent polytetrafluoroethylene wire (11) are sealed and crimped with glue, and a through screw hole (14) is provided on the square protection tube (12), and a detachable screw (15) is provided in the screw hole (14), and two areas are provided on the screw (15), namely a smooth part (16) and a threaded part (17), and the diameter of the smooth part (16) is the same as the diameter of the screw hole (14).

2. A surface mounted thermal resistor according to claim 1, characterized in that: The other end of the transparent polytetrafluoroethylene wire (11) is connected to an eight-core aircraft mother plug (18), and the eight-core aircraft mother plug (18) is connected to the equipment.

3. The surface-mounted thermal resistor according to claim 1, wherein: The square protective tube (12) is made of aluminum and has a size of 6*6*31 mm. The diameter of the screw hole (14) is set to 3.3 mm.

4. The surface-mounted thermal resistor according to claim 1, wherein: The gap between the thermal resistor core (13) and the inner wall of the square protection tube (12) is filled with thermal conductive silica gel.

5. The surface-mounted thermal resistor according to claim 1, wherein: The detection units (10) are provided in two numbers.

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