Snow melting temperature sensor with protection structure

Abstract

The utility model discloses a snow melting temperature sensor with a protection structure, and relates to the technical field of snow melting temperature measurement, and the snow melting temperature sensor specifically comprises two oppositely arranged cover bodies, the two cover bodies are shells with openings on the sides close to each other, and the two ends of the corresponding sides close to each other of the two cover bodies are coaxially provided with arc-shaped grooves; the ends, close to the side faces, of the two cover bodies are rotationally connected, when the two cover bodies are rotationally closed, the snow melting cable can be clamped in the arc-shaped groove, the openings of the two cover bodies are attached to each other, and the edges of the two cover bodies are fixed through a plurality of connecting pieces. An arc-shaped supporting plate coaxially corresponding to the arc-shaped groove is arranged in one cover body. When the snow-melting temperature sensor with the protection structure is used, the snow-melting cable at the position to be measured is wrapped by the cover body, so that the snow-melting cable at the position to be measured is prevented from being in contact with the external environment to cause temperature change, and the measurement accuracy of the snow-melting temperature sensor is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of snowmelt temperature measurement, in particular to a snowmelt temperature sensor with a protective structure. Background Art

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. Temperature sensors are divided into two categories: thermal resistors and thermocouples according to the sensor material and electronic component characteristics.

[0003] At present, in winter, in order to prevent the road from freezing and affecting traffic, snow melting equipment is installed on the road to accelerate the melting of ice and snow. In the snow melting equipment, several temperature sensors are often installed to monitor the road surface temperature and the snow melting cable temperature for the use of the snow melting equipment. However, most of the existing snow melting temperature sensors are only installed next to the snow melting cable, or the probe of the temperature sensor is attached to the snow melting cable. However, since the snow melting cable is always exposed to the air, the temperature of the snow melting cable measured by the temperature sensor will always be affected by the external environment temperature, which will cause the measurement of the temperature sensor to be unable to accurately control the heating temperature of the snow melting cable. To this end, we propose a snow melting temperature sensor with a protective structure to solve the above problems. Utility Model Content

[0004] In view of the disadvantage that the existing snowmelt temperature sensor has a large measurement error for the snowmelt cable, the utility model provides a snowmelt temperature sensor with a protective structure, which has the advantage of reducing the measurement error of the snowmelt temperature sensor and solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a snow melting temperature sensor with a protective structure, comprising two covers arranged opposite to each other, the two covers are shells with openings on one side close to each other, and arc grooves are coaxially opened at both ends of the two covers on the corresponding side;

[0006] The two covers are connected by rotation at one end close to the side. When the two covers are rotated and closed, the snow melting cable is clamped in the arc groove, and the openings of the two covers fit each other. The edges of the two covers are fixed by multiple connectors.

[0007] A support plate which is arc-shaped and coaxial with the arc-shaped groove is provided inside one of the covers, and the convex surface of the support plate is fixedly connected to the cover through a support rod, a thermistor is provided inside the other cover, a pressing plate which is arc-shaped and corresponding to the arc-shaped groove is installed at the edge of the thermistor, a support tube is installed on the top of the pressing plate, the support tube is fixed to the cover and the other end of the support tube passes through the end of the cover;

[0008] A connecting wire is installed on the electrode of the thermistor, the other end of the connecting wire is connected to a terminal, and a transmission wire is installed on the other side of the terminal. The thermistor, the connecting wire, the terminal, and the transmission wire are all arranged in the support tube, and the transmission wire extends outside the cover.

[0009] Preferably, the pressing plate is an elastic rubber plate, a connecting rod is installed on a corner of one side of the pressing plate away from the supporting plate, the connecting rod is an elastic rubber rod, and the other end of the connecting rod is fixedly connected to the cover body.

[0010] Preferably, sealing gaskets are installed on the edges of the two covers on the sides close to each other and in the arc-shaped grooves.

[0011] Preferably, the connecting member comprises a mounting plate, the mounting plate is fixed at an edge of one of the cover bodies, and the other side of the mounting plate is fixedly connected to the other cover body by bolts.

[0012] Preferably, a sealing cap is threadedly mounted on one end of the support tube extending outside the housing, and the transmission wire passes through the sealing cap.

[0013] Preferably, a heat-insulating layer is installed on the inner walls of the two covers, and the heat-insulating layer is one of heat-insulating cotton and heat-insulating board.

[0014] Compared with the prior art, when in use, the snowmelt temperature sensor with a protective structure wraps the snowmelt cable at the measured position through a cover to prevent the snowmelt cable at the measured position from contacting the external environment, thereby ensuring the accuracy of the resistivity change of the thermistor due to heat, thereby improving the measurement accuracy of the snowmelt temperature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 It is the front view of the utility model.

[0018] In the figure: 1, cover body; 2, opening; 3, mounting plate; 4, arc groove; 5, support plate; 6, support rod; 7, sealing cover; 8, pressure plate; 9, connecting rod; 10, support tube; 11, thermistor; 12, connecting wire; 13, terminal; 14, transmission wire. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 The utility model provides a technical solution: a snow melting temperature sensor with a protective structure, comprising two relatively arranged covers 1, the two covers 1 are shells with openings 2 on one side close to each other, and arc grooves 4 are coaxially opened at both ends of the two covers 1 corresponding to the side close to each other, and the two covers 1 are connected by rotation at one end close to the side of each other. When the two covers 1 are rotated and closed, the snow melting cable (such as Figure 1 The two covers 1 are clamped in the arc groove 4, and the openings 2 of the two covers 1 fit together. The edges of the two covers 1 are fixed by multiple connectors to form an independent cavity between the covers 1 and the snow-melting cable, thereby reducing the contact between the snow-melting cable at this position and the external environment. Sealing pads are installed on the edges of the two covers 1 on the side close to each other and in the arc groove 4, which not only improves the fixing effect between the cover 1 and the snow-melting cable, but also improves the airtightness inside the cover 1.

[0021] Specifically, the connecting member includes a mounting plate 3, which is fixed at the edge of one of the covers 1, and the other side of the mounting plate 3 is fixedly connected to the other cover 1 by bolts, so that the cover 1 can be opened to perform maintenance on the temperature sensor.

[0022] like Figure 2 and Figure 3 As shown, a support plate 5 which is arc-shaped and coaxially corresponds to the arc groove 4 is provided inside one of the cover bodies 1, and the convex surface of the support plate 5 is fixedly connected to the cover body 1 through a support rod 6, and a thermistor 11 is provided inside the other cover body 1, and a pressing plate 8 which is arc-shaped and corresponding to the arc groove 4 is installed at the edge of the thermistor 11, wherein the pressing plate 8 is an elastic rubber plate, and a connecting rod 9 is installed on a side corner of the pressing plate 8 away from the support plate 5, and the connecting rod 9 is an elastic rubber rod, and the other end of the connecting rod 9 is One end is fixedly connected to the cover body 1. When the pressure plate 8 contacts the snow-melting cable, the volume of the snow-melting cable will cause the pressure plate 8 and the connecting rod 9 to deform, thereby accumulating elastic potential energy to react on the pressure plate 8, so that the pressure plate 8 can be tightly attached to the snow-melting cable; in actual use, the thermistor 11 protrudes slightly from the inner side of the pressure plate 8. When the support plate 5 and the pressure plate 8 are both tightly attached to the snow-melting cable, the thermistor 11 can be in close contact with the snow-melting cable, thereby improving the accuracy of the resistivity change of the thermistor 11 due to heat.

[0023] like Figure 3 As shown, a support tube 10 is installed on the top of the pressure plate 8, the support tube 10 is fixed to the cover body 1 and the other end of the support tube 10 passes through the end of the cover body 1, a connecting wire 12 is installed on the electrode of the thermistor 11, the other end of the connecting wire 12 is connected to the terminal 13, and a transmission wire 14 is installed on the other side of the terminal 13, the thermistor 11, the connecting wire 12, the terminal 13, and the transmission wire 14 are all arranged in the support tube 10, and the transmission wire 14 extends to the outside of the cover body 1, wherein a sealing cover 7 is threadedly installed on one end of the support tube 10 extending outside the cover body 1, and the transmission wire 14 passes through the sealing cover 7 to prevent cold air from the external environment from entering the support tube 10 and contacting the thermistor, thereby affecting the use of the thermistor 11.

[0024] When in use, the snow-melting cable is placed in the arc groove 4, and then the cover body 1 is closed. When the snow-melting cable is working, the heat emitted by the part located in the cover body 1 will accumulate in the cover body 1, and the inner walls of the two cover bodies 1 are installed with insulation layers, which are one of insulation cotton and insulation board, which can effectively protect the heat loss process of the snow-melting cable to the outside. At this time, the contact between the thermistor 11 and the snow-melting cable will not be affected by the external environment, making the monitoring data of the temperature sensor more accurate; in actual use, there are two terminals 13, and a circuit board is arranged between the two terminals 13, and the circuit board is connected to the two terminals through wires, one of which is connected to the connecting wire 12, and the other terminal 13 is connected to the transmission wire 14. After the current passes through the thermistor 11 to generate a voltage change, the circuit board will convert the voltage change into a data signal, and then transmit it outward through the transmission wire 14.

[0025] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A snowmelt temperature sensor with a protective structure, comprising two covers (1) arranged opposite to each other, characterized in that: The two covers (1) are shells with openings (2) on one side close to each other, and arc grooves (4) are coaxially formed at two ends of the two covers (1) on the corresponding side. The two covers (1) are connected by rotation at one end close to each other. When the two covers (1) are rotated and closed, the snow melting cable is clamped in the arc groove (4), and the openings (2) of the two covers (1) are fitted together. The edges of the two covers (1) are fixed by a plurality of connecting pieces. A support plate (5) having an arc shape and coaxially corresponding to the arc groove (4) is provided inside one of the covers (1), and a convex surface of the support plate (5) is fixedly connected to the cover (1) via a support rod (6); a thermistor (11) is provided inside the other cover (1); a pressure plate (8) having an arc shape and corresponding to the arc groove (4) is installed at the edge of the thermistor (11); a support tube (10) is installed on the top of the pressure plate (8); the support tube (10) is fixed to the cover (1) and the other end of the support tube (10) passes through the end of the cover (1); A connecting wire (12) is installed on an electrode of the thermistor (11); the other end of the connecting wire (12) is connected to a terminal (13); a transmission wire (14) is installed on the other side of the terminal (13); the thermistor (11), the connecting wire (12), the terminal (13), and the transmission wire (14) are all arranged in a support tube (10), and the transmission wire (14) extends outside the cover body (1).

2. The snow melting temperature sensor with a protective structure according to claim 1, characterized in that: The pressing plate (8) is an elastic rubber plate. A connecting rod (9) is installed on a corner of the pressing plate (8) away from the supporting plate (5). The connecting rod (9) is an elastic rubber rod, and the other end of the connecting rod (9) is fixedly connected to the cover body (1).

3. The snow melting temperature sensor with a protective structure according to claim 1, characterized in that: Sealing pads are correspondingly installed on the edges of the two cover bodies (1) on the side close to each other and in the arc-shaped groove (4).

4. The snow melting temperature sensor with a protective structure according to claim 1, characterized in that: The connecting member comprises a mounting plate (3), the mounting plate (3) being fixed at the edge of one of the cover bodies (1), and the other side of the mounting plate (3) being fixedly connected to the other cover body (1) via bolts.

5. The snow melting temperature sensor with a protective structure according to claim 1, characterized in that: A sealing cover (7) is threadedly mounted on one end of the support tube (10) extending outside the cover body (1), and the transmission wire (14) passes through the sealing cover (7).

6. The snow melting temperature sensor with a protective structure according to claim 1, characterized in that: A heat-insulating layer is installed on the inner walls of the two cover bodies (1), and the heat-insulating layer is one of heat-insulating cotton and heat-insulating board.

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