Mining flame-proof junction box capable of sensing temperature of binding post

Abstract

The utility model relates to a mining flame-proof junction box capable of sensing the temperature of a binding post. The mining flame-proof junction box comprises a junction box lower cavity, a junction box upper cover, the binding post, a non-contact temperature sensor, a data processor, a liquid crystal display screen, a power supply module and a power supply button, the binding post is installed on the bottom face of a lower cavity of the junction box, the non-contact temperature sensor is connected with the data processor, the data processor is connected with the liquid crystal display screen, and the power supply module supplies power to the non-contact temperature sensor, the data processor and the liquid crystal display screen. The power supply button is installed on the junction box upper cover to control the working state of the power supply module. When the junction box is checked, the temperature information of the binding post can be directly read without dismounting the upper cover of the junction box, and the temperature abnormity of the binding post can be timely and reasonably handled so as to nip in the bud. Operation procedures are simplified, labor intensity is reduced, potential safety hazards are eliminated, and coal mine safety production is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of underground power supply technology in coal mines, and relates to a mine explosion-proof junction box that can sense the temperature of the terminal blocks. Background Technology

[0002] In underground coal mine power supply systems, power cables are connected or branched through junction boxes. The cable cores are crimped together by terminals and nuts within the junction box to extend the power supply distance and supply power to branch systems. Loose connections can increase contact resistance, leading to overheating at the joints under load current. If not addressed promptly, this overheating can burn out the cores or cause short circuits, resulting in power outages and safety hazards. Therefore, regular checks of terminal operating temperatures are essential. However, these checks require prior power outage procedures. During on-site operations, the upstream power supply must be disconnected first, then the junction box opened to carefully inspect the terminals and core color changes, and the terminal temperature measured. After inspection, the junction box cover is replaced before restoring normal power supply. Due to the large number and wide distribution of explosion-proof junction boxes in underground coal mines, manual inspection is labor-intensive, cumbersome, and inefficient, hindering normal mine production. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a mine explosion-proof junction box that can sense the temperature of the terminal blocks.

[0004] This utility model discloses a mine-use explosion-proof junction box capable of sensing the temperature of terminal blocks, comprising: a lower cavity of the junction box, a top cover of the junction box, terminal blocks, a non-contact temperature sensor, a data processor, an LCD display, a power supply module, and a power button; the terminal blocks are installed on the bottom surface of the lower cavity of the junction box, the non-contact temperature sensor is connected to the data processor, the data processor is connected to the LCD display, the power supply module supplies power to the non-contact temperature sensor, the data processor, and the LCD display, and the power button is installed on the top cover of the junction box to control the on / off state of the power supply module.

[0005] Furthermore, the non-contact temperature sensor, data processor, power supply module, and LCD screen are assembled into a motherboard and mounted on the junction box cover.

[0006] Furthermore, the power supply module includes a battery and a battery box.

[0007] Furthermore, the power supply button is an explosion-proof operating button.

[0008] Furthermore, the junction box cover is fixed to the lower cavity of the junction box by bolts.

[0009] The explosion-proof junction box for mining applications that can sense the temperature of the terminals has the following advantages:

[0010] 1. The temperature display mode provides convenience for the tour inspection, and the cable does not need to be powered off during the inspection, the power supply button on the terminal box is pressed, the temperature of the internal terminal post is displayed on the liquid crystal display screen, the temperature is normal, which indicates that the wiring state is good, the trouble of stopping power supply first and then opening the cover along the line to check the wiring condition is avoided, the efficiency is greatly improved, and the problem of not checking or false checking caused by fear of power-off affecting normal production is solved.

[0011] 2. The mature cable terminal box already used on the site is fully utilized, the lower cavity is not changed, and only the upper cover of the terminal box needs to be replaced, so that the temperature measurement of the terminal box is realized, the modification is simple, the cost is saved, and the wiring habit of the operator is maximally met.

[0012] 3. Each terminal box can work independently, and does not need to be connected to a system or a network, and the existing terminal boxes can be mixedly used. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a sectional view of a mine-used explosion-proof terminal box capable of sensing the temperature of a terminal post. DETAILED DESCRIPTION

[0014] As shown in Figure 1 , the mine-used explosion-proof terminal box capable of sensing the temperature of a terminal post comprises a terminal box lower cavity 2, a terminal box upper cover 3, a terminal post 1, a non-contact temperature sensor 4, a data processor 5, a liquid crystal display screen 6, a power supply module 7 and a power supply button 8. The terminal post 1 is installed on the bottom surface of the terminal box lower cavity 2, the non-contact temperature sensor 4 is connected with the data processor 5, the data processor 5 is connected with the liquid crystal display screen 6, the power supply module 7 supplies power for the non-contact temperature sensor 4, the data processor 5 and the liquid crystal display screen 6, and the power supply button 8 is installed on the terminal box upper cover 3 to control the on-off state of the power supply module 7.

[0015] The non-contact temperature sensor 4 is used for measuring the temperature of the terminal post 1 in the terminal box lower cavity 2. The data processor 5 is used for processing the temperature information detected by the non-contact temperature sensor 4 and has a storage memory function. The power supply button 8 is used for turning on the power supply module 7 and displaying the measured temperature value on the liquid crystal display screen 6 during the tour inspection.

[0016] The non-contact temperature sensor 4, the data processor 5, the power supply module 7 and the liquid crystal display screen 6 are assembled into a mainboard and installed on the terminal box upper cover 3. The power supply module 7 comprises a battery and a battery box. The power supply button 8 adopts an explosion-proof operation button. The terminal post 1 and the terminal box lower cavity 2 are market existing products. The terminal box upper cover 3 is fixed on the terminal box lower cavity 2 by bolts, and constitutes the complete function of the market existing terminal box.

[0017] The utility model discloses a mine explosion-proof terminal box of temperature sensing terminal post, be used for coal mine underground power supply system, through setting up non -contact temperature sensor 4 to the operation temperature of terminal post in terminal box cavity is monitored, when terminal post temperature is over limit, can find in time and handle in time, avoid forming fire or power failure accident, eliminate the hidden danger of safety, ensure that the underground power supply system safe operation, be favorable to promote coal mine safety production.

[0018] The above only is the preferred embodiment of the utility model, and does not use to limit the thought of the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model should be contained in the protection scope of the utility model.

Claims

1. A mine-use explosion-proof junction box capable of sensing the temperature of the terminals, characterized in that, include: Junction box lower cavity, junction box upper cover, terminal block, non-contact temperature sensor, data processor, LCD display, power supply module and power button; The terminal block is installed on the bottom surface of the lower cavity of the junction box. The non-contact temperature sensor is connected to the data processor, the data processor is connected to the LCD screen, the power supply module supplies power to the non-contact temperature sensor, the data processor and the LCD screen, and the power supply button is installed on the top cover of the junction box to control the on / off state of the power supply module. The non-contact temperature sensor, data processor, power supply module, and LCD screen are assembled into a motherboard and installed on the top cover of the junction box. The power supply module includes a battery and a battery box; The power supply button is an explosion-proof operating button; The top cover of the junction box is fixed to the lower cavity of the junction box by bolts.

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