阅读说明：本技术 一种可扩展接线装置、扩展方法及无线温度传感器 (Extensible wiring device, extension method and wireless temperature sensor ) 是由 周洪琴 李鹏 尹怀鑫 李丹 范阔 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种可扩展接线装置、扩展方法及无线温度传感器。可扩展接线装置可以改造现有温度传感器,实现温度数据的无线传送,使得温度传感器可以在布线困难的工况下使用。可扩展接线装置可以在传统仪表的基础上进行简单的改造,即可实现仪表入网,而且不影响原来的仪表系统,原系统可以正常使用,互不干涉。并且温度传感器与扩展装置是可以分离的,传感器一般为易损耗件,需经常更换,但是扩展装置可以长期使用,并且不会涉及到地址等信息的改变,使更换、维护变得简单。(The invention discloses an expandable wiring device, an expandable method and a wireless temperature sensor. The expandable wiring device can be used for transforming the existing temperature sensor and realizing wireless transmission of temperature data, so that the temperature sensor can be used under the working condition of difficult wiring. The extensible termination can carry out simple transformation on the basis of traditional instrument, can realize that the instrument goes into the net, does not influence original instrument system moreover, and original system can normal use, mutual noninterference. The temperature sensor and the expansion device can be separated, the sensor is generally a consumable part and needs to be replaced frequently, but the expansion device can be used for a long time, and information such as addresses and the like can not be changed, so that replacement and maintenance are simple.)

1. An expandable wiring device is characterized by comprising a wiring box cover (1), wherein a temperature transmission module and a wireless transmission module in signal connection with the temperature transmission module are arranged in the wiring box cover (1), a communication card is arranged on the wireless transmission module, and an inner threaded hole (101) in threaded connection with a wiring box body (4) of a temperature sensor is arranged on the wiring box cover (1); the temperature transmitter is characterized by further comprising a battery box (2) for supplying power to the temperature transmitting module and the wireless transmitting module, wherein an outer stud (201) in threaded connection with an electric interface (5) on a junction box of the temperature sensor is arranged on the battery box (2).

2. The expandable termination device according to claim 1, wherein the wireless transmission module comprises an antenna (3) arranged on the junction box cover (1).

3. The expandable termination device according to claim 1, characterised in that the antenna (3) is arranged outside the junction box cover (1).

4. The expandable wiring device of claim 1, further comprising a display module in signal connection with the temperature transmitter module, the display module further comprising a display screen disposed on the junction box cover, the battery compartment (2) being electrically connected to the display module.

5. The expandable termination device according to claim 1, wherein a terminal block is provided in the terminal block cover (3), said terminal block being electrically connected to the temperature transmission module, said terminal block being provided with a terminal hole.

6. A wireless temperature sensor, comprising the expandable wiring device of any of claims 1-5.

7. An expansion method, based on the expandable connection device of any one of claims 1-5, characterized in that a terminal box cover (1) matched with the existing temperature sensor terminal box body (4) is provided, the terminal box cover (1) is provided with a temperature transmission module and a wireless transmission module in signal connection with the temperature transmission module, the terminal box cover (1) is connected to the existing temperature sensor terminal box body (4) and the temperature transmission module is connected with the probe (6) of the existing temperature sensor, a battery box (2) capable of being connected with the electric interface (5) on the existing temperature sensor terminal box body (4) is provided, the temperature transmission module and the wireless transmission module are electrically connected with the battery box (2), and the battery box (2) is connected to the electric interface (5).

8. The extension method according to claim 7, characterized in that a signal repeater in signal connection with the wireless transmission module is arranged outside the existing temperature sensor.

Technical Field

The invention relates to the technical field of temperature sensors, in particular to an extensible wiring device and an extensible wiring method of a temperature sensor and a wireless temperature sensor. The temperature sensor mainly comprises a thermocouple and a thermal resistance temperature sensor.

Background

The thermocouple and the thermal resistor are commonly used temperature measuring elements in a temperature measuring instrument, directly measure the temperature, convert a temperature signal into an electric signal and convert the electric signal into the temperature of a measured medium through an electric instrument. One end of the temperature sensor is a measuring end and is inserted into a medium with a measured temperature, the other end of the temperature sensor is provided with a junction box, the junction box is provided with an electrical interface for externally connecting a power line or a signal transmission line, and an inner thread arranged on a junction box cover can be separated from the box body, so that the circuit in the junction box can be conveniently installed and checked.

Under some working conditions, temperature sensors such as thermocouples and thermal resistors face the condition that wiring cannot be performed, such as converter temperature measurement and temperature measurement in a narrow space. Furthermore, in chemical plants, pharmaceutical factories, and the like, temperature measurement points need to be increased, and wiring is difficult in the conventional manner. Meanwhile, under the large background of interconnection of everything and industrial informatization, based on the requirements for industrial automation and intellectualization, instruments and meters tend to enter the Internet of things, and the traditional temperature sensor cannot meet the current use requirements.

Therefore, a higher-end and intelligent temperature sensor is required to be selected to realize network access reconstruction. However, replacing an intelligent temperature sensor is often incompatible with the original control and monitoring system, and network access cannot be realized by simply replacing the temperature sensor. Comprehensive transformation and upgrading can consume a large amount of financial resources, material resources and manpower, and the transformation difficulty and the transformation cost can be increased undoubtedly. Therefore, upgrading and function expansion on the existing temperature sensor become the best option.

In view of this, how to provide an expandable wiring device, which can be used to modify an existing temperature sensor to meet the requirement of being used under the working condition of difficult wiring, and further can be used to modify the existing temperature sensor to perform function expansion, has become a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The invention provides an extensible wiring device which can be used for improving and upgrading the existing temperature sensor, expanding functions, realizing the use of the temperature sensor under the working condition of difficult wiring and realizing the wireless transmission of temperature data. The invention further discloses a corresponding expansion method and a wireless temperature sensor.

In order to achieve the purpose, the invention adopts the technical scheme that:

an expandable wiring device is characterized by comprising a wiring box cover, wherein a temperature transmission module and a wireless transmission module in signal connection with the temperature transmission module are arranged in the wiring box cover, a communication card is arranged on the wireless transmission module, and an inner threaded hole in threaded connection with a temperature sensor wiring box body is arranged on the wiring box cover; the temperature transmitter is characterized by further comprising a battery box for supplying power to the temperature transmitting module and the wireless transmitting module, and an external threaded column in threaded connection with an electrical interface on the temperature sensor junction box is arranged on the battery box.

Preferably, the wireless transmission module includes an antenna disposed on the junction box cover.

Preferably, the antenna is disposed outside the junction box cover.

Preferably, the temperature control device further comprises a display module, the display module is in signal connection with the temperature transmission module, the display module further comprises a display screen arranged on the junction box cover, and the battery box is electrically connected with the display module.

Preferably, the temperature transmitter further comprises a wiring board arranged on the terminal box cover, the wiring board is electrically connected with the temperature transmitting module, and a wiring hole is formed in the wiring board.

A wireless temperature sensor is characterized by comprising the extensible wiring device.

An expansion method is based on the expandable connection device and is characterized in that a connection box cover matched with an existing temperature sensor connection box body is arranged, a temperature transmission module and a wireless transmission module in signal connection with the temperature transmission module are arranged in the connection box cover, the connection box cover is connected to the existing temperature sensor connection box body, the temperature transmission module is connected with a probe of a temperature sensor, a battery box capable of being connected with an electrical interface on the existing temperature sensor connection box body is arranged, the temperature transmission module and the wireless transmission module are electrically connected with the battery box, and the battery box is connected to the electrical interface.

Preferably, a signal repeater in signal connection with the wireless transmission module is arranged outside the temperature sensor.

The invention has the beneficial effects that: the expandable wiring device can be used for transforming the existing temperature sensor and realizing the wireless transmission of temperature data, so that the temperature sensor can be used under the working condition of difficult wiring. The extensible termination can carry out simple transformation on the basis of traditional instrument, can realize that the instrument is netted to original instrument system still does not influence, original system can normal use, mutually noninterfere. The sensor and the expansion device can be separated, the temperature sensor is generally a consumable part and needs to be replaced frequently, but the expansion device can be used for a long time, and information such as addresses and the like can not be changed, so that replacement and maintenance are simple.

Drawings

Fig. 1 is a schematic structural diagram of a hidden display screen of a junction box cover in an expandable wiring device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a battery box of the expandable wiring device according to an embodiment of the present invention;

fig. 3 is a diagram of a wireless temperature sensor according to an embodiment of the present invention.

The labels in the figure are: 1 is a junction box cover, 101 is an inner screw hole, 2 is a battery box, 201 is an outer stud, 3 is an antenna, 4 is a junction box body, 5 is an electrical interface, and 6 is a probe of a temperature sensor.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1 and 3, the embodiment discloses an expandable connection device, which includes a connection box cover 1, a temperature transmission module and a wireless transmission module in signal connection with the temperature transmission module are arranged in the connection box cover 1, and an inner screw hole 101 in threaded connection with a connection box body 4 is arranged on the connection box cover 1; the temperature transmitter also comprises a battery box 2 for supplying power to the temperature transmitting module and the wireless transmitting module, and an external bolt 201 in threaded connection with the electrical interface 5 on the junction box is arranged on the battery box 2.

Like this, above-mentioned device is convenient direct and current temperature sensor high-speed joint, realizes transforming the upgrading. Wiring work is reduced. The temperature transmitting module is mainly used for transmitting signals and converting the electric signals measured by the temperature sensor probe into standard current signals of 4-20 mA. The wireless sending module is mainly used for converting the standard current signal into a digital signal, sending the digital signal to the Internet or a signal repeater through a communication card and an antenna, and sending position information to position the temperature sensor. The battery and the junction box cover are independently arranged, so that the replacement is convenient. The expandable device can be separated, the temperature sensor is generally a consumable part and needs to be replaced frequently, but the expandable device can be used for a long time and does not involve the change of information such as addresses, and the replacement and maintenance become simple. The communication card can be a conventional internet of things communication card.

In this embodiment, the wireless transmission module includes an antenna 3 provided on the junction box cover 1.

In this way, the antenna is used to enhance the signal.

In this embodiment, the antenna 3 is disposed outside the terminal cover 1.

Thus, the signal enhancement effect is better. And is convenient to replace and maintain.

In this embodiment, still include display module, display module and temperature transmitting module signal connection, display module still includes the display screen that sets up on junction box lid 1, and battery case 2 is connected with the display module electricity.

Thus, on-site observation is facilitated.

In this embodiment, a wiring board is provided in the terminal cover 3, the wiring board is electrically connected to the temperature transmission module, and a wiring hole is provided in the wiring board.

Thus, the wiring is convenient and quick.

A wireless temperature sensor comprises the extensible wiring device.

Therefore, the embodiment discloses a wireless temperature sensor which can be better suitable for the working condition with difficult wiring and can be used for the transformation and upgrading of the existing temperature sensor.

An expansion method is based on the expandable connection device, a connection box cover 1 matched with an existing temperature sensor connection box body 4 is arranged, a temperature transmission module and a wireless transmission module in signal connection with the temperature transmission module are arranged in the connection box cover 1, the connection box cover 1 is connected to the existing temperature sensor connection box body 4, the temperature transmission module is connected with a probe 6 of the existing temperature sensor, a battery box 2 capable of being connected with an electrical interface 5 on the existing temperature sensor connection box body 4 is arranged, the temperature transmission module and the wireless transmission module are electrically connected with the battery box 2, and the battery box 2 is connected to the electrical interface 5.

Therefore, the method for modifying the existing temperature sensor is disclosed, so that the existing temperature sensor can be fully utilized, parts can be replaced as few as possible, the modification cost is low, and the method is more favorable for market popularization.

In the present embodiment, a signal repeater signal-connected to the wireless transmission module is disposed outside the existing temperature sensor.

Thus, the signal repeater can realize long-distance signal transmission and expand the wireless signal transmission range.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.