Temperature control device for cable

Abstract

The utility model discloses a temperature control device for a cable. Comprising a temperature limiter assembled on one of a live wire or a zero wire, an indicating lamp of which one end is connected with an outgoing end of the temperature limiter and the other end is connected with the rest of the zero wire or the live wire, and a light-transmitting sealing shell which is assembled on a cable in an attached manner and wraps the temperature limiter, the indicating lamp and part of the cable, because one end of the indicating lamp is connected with the leading-out end of the temperature limiter, the indicating lamp is lighted only after the channel of the temperature limiter is opened, and current passes through the indicating lamp; when the channel in the temperature limiter is disconnected, no current passes through the indicator lamp, a worker can visually know the opening and closing of the channel in the temperature limiter through the opening and closing of the indicator lamp so as to know whether a cable is in a working state, and the light-transmitting sealing shell can play a waterproof role and protect the internal temperature limiter and the indicator lamp; light emitted by the indicator lamp can also penetrate through the light-transmitting sealing shell, so that a worker can conveniently observe the working state of the indicator lamp, and the device is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cable temperature control, and particularly to a temperature control device for cables. Background Art

[0002] The heating cable, also known as the electric tracing cable and heating cable, is widely used for the tracing heat preservation, anti-freezing and anti-condensation of pipelines, pump bodies, valves, tanks and tank volumes in industries such as petroleum, chemical industry, electric power, medicine, machinery, food, and ships. It is an effective method for maintaining the process temperature of the infusion pipeline and the liquid storage medium tank. The heating cable is not only applicable to various places with steam tracing, but also can solve the problems that are difficult to solve by steam tracing, such as: the tracing of long-distance pipelines, the tracing in narrow spaces; the tracing of equipment with irregular shapes; the tracing of pipelines and equipment without steam heat sources or in remote areas; the tracing of plastic and non-metal pipelines, etc.

[0003] The heating cable heats itself to achieve the effect of tracing heat preservation on pipelines, etc., and the heating temperature of the cable needs to be controlled during use. Therefore, when the temperature of the cable is higher than the set temperature, heating needs to be stopped, and when the temperature is lower than the set temperature, heating needs to be carried out. In the prior art, a wireless transmission module is used to transmit data to the control terminal, and the current flowing into the cable is controlled by the temperature range set by the control terminal. However, this method requires on-site staff and inspection personnel to move to the control terminal to view the working state of the cable. The on-site staff and inspection personnel cannot directly observe the working state of the cable on-site and need to move to the control terminal to know the working state of the cable, which will reduce the work efficiency. Therefore, a temperature control device for cables needs to be designed. Summary of the Utility Model

[0004] Aiming at the above technical problems, the purpose of the utility model is to overcome the problem that the working state of the cable cannot be directly observed in the prior art.

[0005] To achieve the above purpose, the utility model provides a temperature control device for cables, including: a temperature limiter assembled on one of the live wire or the neutral wire, an indicator light with one end connected to the outgoing end of the temperature limiter and the other end connected to the remaining neutral wire or live wire, and a light-transmitting sealing shell that is fitted on the cable and wraps the temperature limiter, the indicator light, and part of the cable on the outside.

[0006] Preferably, the outgoing end and the incoming end of the temperature limiter are both connected to the live wire, and the end of the indicator light far from the temperature limiter is connected to the neutral wire.

[0007] Preferably, the outgoing end and the incoming end of the temperature limiter are both connected to the neutral wire, and the end of the indicator light far from the temperature limiter is connected to the live wire.

[0008] Preferably, the light-transmitting sealing shell is a transparent shell.

[0009] Preferably, a sleeve portion that fits and assembles on the outer side of the cable is provided on the light-transmitting sealed housing.

[0010] Preferably, at least one adjustment through groove communicating with the inside is provided through the side wall of the sleeve portion.

[0011] According to the above technical solution, a temperature control device for a cable provided by the present utility model has the following beneficial effects when in use: First, since one end of the indicator light is connected to the outgoing end of the temperature limiter, current will only pass through the indicator light and turn it on after the channel of the temperature limiter is opened; when the channel inside the temperature limiter is disconnected, no current passes through the indicator light, and personnel can intuitively know the opening and closing of the channel inside the temperature limiter through the opening and closing of the indicator light, thereby knowing the working state of the cable.

[0012] Second, the light-transmitting sealed housing can not only play a waterproof role to protect the internal temperature limiter and indicator light, but also the light emitted by the indicator light can pass through the light-transmitting sealed housing, facilitating personnel to observe the working state of the indicator light.

[0013] Third, this device combines a temperature limiter and an indicator light, with a simple structure and low manufacturing cost.

[0014] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part; and parts not involved in the present utility model are the same as or can adopt the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification, and are used together with the following specific implementation to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0016] Figure 1 is a three-dimensional structural schematic diagram of a temperature control device for a cable provided by the present utility model;

[0017] Figure 2 is a partial three-dimensional structural schematic diagram of a temperature control device for a cable provided by the present utility model after removing the light-transmitting sealed housing Figure 1 ;

[0018] Figure 3 is a partial three-dimensional structural schematic diagram of a temperature control device for a cable provided by the present utility model after removing the light-transmitting sealed housing Figure 2 。

[0019] DESCRIPTION OF THE REFERENCE NUMERALS

[0020] 1, live wire; 2, neutral wire; 3, temperature limiter; 4, indicator light; 5, light-transmitting sealed housing; 6, sleeve portion; 7, adjustment through groove. Detailed implementation manners

[0021] The following will describe in detail the detailed implementation manners of the present utility model with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only for explaining and interpreting the present utility model, and are not used to limit the present utility model.

[0022] In the present utility model, unless otherwise stated, the orientation words included in terms such as "upper, lower, inner, outer" only represent the orientation of the term in the normal use state, or the common name understood by those skilled in the art, and should not be regarded as a limitation of the term.

[0023] As Figures 1-3 shown, a temperature control device for a cable includes: a temperature limiter 3 assembled on one of the live wire 1 or the neutral wire 2, an indicator light 4 with one end connected to the output end of the temperature limiter 3 and the other end connected to the remaining neutral wire 2 or live wire 1, and a light-transmitting sealing shell 5 fitted and assembled on the cable and covering the outside of the temperature limiter 3, the indicator light 4 and part of the cable.

[0024] The light-transmitting sealing shell 5 can be made of resin. After the indicator light 4 and the temperature limiter 3 are both assembled on the cable, the indicator light 4, the temperature limiter 3 and the corresponding limiting parts are placed in a mold, and resin is poured in. After the resin cools, the light-transmitting sealing shell 5 is formed.

[0025] The function of the temperature limiter 3 is to disconnect the circuit when the temperature exceeds the set temperature and close the circuit when the temperature is lower than the set temperature.

[0026] Because one end of the indicator light 4 is connected to the output end of the temperature limiter 3, current will flow through the indicator light 4 and it will light up only after the channel in the temperature limiter 3 is opened; when the channel inside the temperature limiter 3 is disconnected, there is no current passing through the indicator light 4, and personnel can directly know whether the channel inside the temperature limiter 3 is opened or closed through the on-off of the indicator light 4, so as to know whether the cable is in a working state.

[0027] The light-transmitting sealing shell 5 can not only play a waterproof role to protect the internal temperature limiter 3 and indicator light 4, but also the light emitted by the indicator light 4 can pass through the light-transmitting sealing shell 5, which is convenient for personnel to observe the working state of the indicator light 4.

[0028] As Figure 2 shown, the output end and the input end of the temperature limiter 3 are both connected to the live wire 1, and the end of the indicator light 4 far from the temperature limiter 3 is connected to the neutral wire 2.

[0029] When the internal channel of the temperature limiter 3 is connected, the circuit is connected and current will pass through the indicator light 4.

[0030] As Figure 3As shown, the outgoing terminal and the incoming terminal of the thermostat 3 are both connected to the neutral wire 2, and the end of the indicator light 4 away from the thermostat 3 is connected to the live wire 1.

[0031] When the internal channel of the thermostat 3 is connected, the circuit is connected, and current will pass through the indicator light 4.

[0032] The thermostat 3 can be assembled on the neutral wire 2 or on the live wire 1, both of which can cut off the circuit and play a role in temperature control.

[0033] The light-transmitting sealing shell 5 is a transparent shell.

[0034] The transparent shell makes the light of the indicator light 4 more likely to pass through, and a transparent resin potting and cooling process can be adopted.

[0035] A sleeve part 6 that fits and assembles on the outside of the cable is provided on the light-transmitting sealing shell 5.

[0036] The sleeve part 6 can increase the contact area between the light-transmitting sealing shell 5 and the cable, improve the sealing performance, and because the thickness of the sleeve part 6 is low, the sleeve part 6 has a certain deformability. When the cable bends, the sleeve part 6 can partially bend and deform to reduce the damage degree at the connection between the cable and the sleeve part 6 and improve the service life of the cable.

[0037] At least one adjustment through groove 7 communicating with the inside is penetrated through the side wall of the sleeve part 6.

[0038] Because the cable will bend during actual use, and the adjustment through groove 7 can further improve the deformability of the sleeve part 6 to reduce the damage degree at the connection between the cable and the sleeve part 6 and improve the service life.

[0039] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0040] In addition, it should be noted that, in the case of no contradiction, the various specific technical features described in the above specific embodiments can be combined in any suitable way. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0041] Furthermore, any combination can be made between various different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A temperature control device for a cable, characterized in that: include: A temperature limiter (3) mounted on one of the live wire (1) or the neutral wire (2), an indicator light (4) having one end connected to the outlet of the temperature limiter (3) and the other end connected to the remaining neutral wire (2) or the live wire (1), and a light-transmitting sealing shell (5) fitted on the cable and wrapped around the outside of the temperature limiter (3), the indicator light (4) and part of the cable.

2. A cable temperature control device according to claim 1, characterized in that: The outlet end and the inlet end of the temperature limiter (3) are both connected to the live wire (1), and the end of the indicator light (4) away from the temperature limiter (3) is connected to the neutral wire (2).

3. A cable temperature control device according to claim 1, characterized in that: The output end and the input end of the temperature limiter (3) are both connected to the neutral line (2), and the end of the indicator light (4) away from the temperature limiter (3) is connected to the live line (1).

4. A cable temperature control device according to claim 1, characterized in that: The light-transmitting sealed shell (5) is a transparent shell.

5. A cable temperature control device according to claim 1, characterized in that: The light-transmitting sealing shell (5) is provided with a sleeve portion (6) which is fitted and assembled on the outside of the cable.

6. A cable temperature control device according to claim 5, characterized in that: At least one adjusting through groove (7) communicating with the interior is provided through the side wall of the pipe sleeve portion (6).

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