An electrical fire monitoring device

Abstract

This utility model belongs to the technical field of electrical fire monitoring devices, specifically an electrical fire monitoring equipment. This device consists of an electrical fire monitoring display, a wireless data acquisition unit, an electrical fire monitoring sub-unit, and an electrical fire detector. The electrical fire monitoring display and the wireless data acquisition unit are connected via RS485 communication; the wireless data acquisition unit and the electrical fire monitoring device are connected via Bluetooth wireless communication; and the electrical fire monitoring sub-unit and the electrical fire detector are connected via a two-wire bus communication. This utility model's electrical fire monitoring device boasts rich functionality, high intelligence, powerful features, compact size, easy installation, low cost, long transmission distance, abundant display data, and stable and reliable performance, making it an effective and economical product to meet user needs.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical fire monitoring devices, specifically an electrical fire monitoring equipment. Background Technology

[0002] With the continuous development of power technology and the increasing degree of electrification, circuit protection is becoming increasingly important. The main causes of electrical fires are improper selection and installation of electrical lines and equipment, operational errors, violations of regulations, and long-term overload, which can lead to electric arcs, electric sparks, and localized overheating. This phenomenon is highly dangerous and seriously threatens the safety of equipment and personnel. As accidents caused by residual current, electric arcs, and line overheating increase, the need for electrical fault detection is becoming more and more urgent. Therefore, an electrical fire monitoring device is proposed to address the above problems. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes an electrical fire monitoring device.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: The electrical fire monitoring device of this utility model includes an electrical fire monitoring display, a wireless collector, an electrical fire monitoring sub-unit, and an electrical fire detector; the electrical fire monitoring display and the wireless collector are electrically connected, the wireless collector and the electrical fire monitoring sub-unit are connected via Bluetooth, and the electrical fire monitoring sub-unit and the electrical fire detector are electrically connected.

[0005] Preferably, the electrical fire monitoring display is an HMI touch screen, used to display the residual current, temperature data, alarm information of the system under test, and to perform system operation settings.

[0006] Preferably, the wireless data acquisition device uses a Bluetooth to RS485 converter for communication conversion between the electrical fire monitoring sub-unit and the electrical fire monitoring display.

[0007] Preferably, the electrical fire monitoring unit is a data acquisition unit used to centrally collect residual current, temperature data, and alarm information from electrical fire detectors.

[0008] Preferably, the electrical fire detector is connected to a residual current sensor and a temperature sensor to collect residual current and temperature data of the system under test and perform analysis and processing.

[0009] Preferably, a first fixing band is fixed to the side wall of the temperature sensor; a second fixing band is fixed to the side wall of the temperature sensor; a rubber fixing block is sleeved on the outside of the second fixing band; a rubber fixing block is sleeved on the outside of the first fixing band; a fixing tube is fixed to the side wall of the second fixing band; a fixing screw is threadedly connected to the middle of the fixing tube; and a compression fixing plate is rotatably connected to the end of the fixing screw.

[0010] Preferably, the sidewall of the rubber fixing block has a through hole; the inner sidewall of the through hole is slidably connected to the sidewalls of the second fixing band and the first fixing band; the sidewall of the rubber fixing block has multiple sets of grooves.

[0011] Preferably, the sidewall of the compression fixing plate is fixed with multiple sets of protrusions; the protrusions are arranged in an array.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model provides an electrical fire monitoring device that comprehensively utilizes monitoring functions such as residual current and temperature to improve the comprehensiveness, practicality, and effectiveness of detector monitoring, greatly enhancing the safety supervision of electrical circuits and reducing fire hazards. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the monitoring device of this utility model;

[0016] Figure 2 This is a perspective view of the temperature sensor in this utility model;

[0017] Figure 3 This is a cross-sectional view of the fixing tube in this utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a perspective view of the rubber fixing block in this utility model;

[0020] Figure 6 This is a perspective view of the protrusion in this utility model.

[0021] Legend:

[0022] 100. Electrical fire monitoring display; 101. Wireless data acquisition unit; 102. Electrical fire monitoring sub-unit; 103. Electrical fire detector; 103. Temperature sensor; 11. First fixing strap; 12. Second fixing strap; 13. Rubber fixing block; 14. Fixing tube; 15. Fixing screw; 16. Extrusion fixing plate; 17. Protrusion; 131. Through hole; 132. Groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1-6 This utility model provides an electrical fire monitoring device, including an electrical fire monitoring display 100, a wireless data collector 101, an electrical fire monitoring sub-unit 102, and an electrical fire detector 103; the electrical fire monitoring display 100 and the wireless data collector 101 are electrically connected, the wireless data collector 101 and the electrical fire monitoring sub-unit 102 are connected via Bluetooth, and the electrical fire monitoring sub-unit 102 and the electrical fire detector 103 are electrically connected.

[0026] The electrical fire monitoring display 100 is an HMI touch screen, which is connected to the wireless collector 101 via an RS485 communication interface to read data such as the remaining current, temperature, and alarm information of the wireless collector 101 in real time, and to perform setting and query operations through the touch screen.

[0027] The wireless data acquisition unit 101 adopts an industrial-grade Bluetooth wireless module. It connects to the electrical fire monitoring display 100 via an RS485 communication interface for uplink and to the electrical fire monitoring sub-unit 102 via Bluetooth communication for downlink. It reads data such as the remaining current, temperature, and alarm information of the monitoring sub-unit in real time through transparent transmission.

[0028] The electrical fire monitoring unit 102 is a data acquisition unit. It connects to the wireless acquisition unit 101 via Bluetooth uplink and transmits the collected data to the wireless acquisition unit 101. It connects to the electrical fire detector 103 via a downlink two-wire bus and effectively monitors the electrical fire detector 103 in the local area. It can provide centralized power to the detectors through the two-wire bus and extend the system communication distance, thereby expanding the number of devices in the entire monitoring system.

[0029] The electrical fire detector 103 is connected to a residual current sensor and a temperature sensor in the downlink direction, and to an electrical fire monitoring sub-unit 102 in the uplink direction via a two-wire communication. It is used to collect residual current and temperature data of the system under test and to analyze and process them.

[0030] The residual current sensor is installed in the A, B, C, and N phase cables of the power distribution system to test the residual current.

[0031] The temperature sensor is a PT1000 platinum resistance thermometer, installed at the connection of the cable and copper busbar, used to collect the overheating temperature caused by cable aging or loose connection.

[0032] Furthermore, such as Figures 2-6 As shown, a first fixing band 11 is fixedly connected to the side wall of the temperature sensor 1; a second fixing band 12 is fixedly connected to the side wall of the temperature sensor 1; a rubber fixing block 13 is sleeved on the outside of the second fixing band 12; a rubber fixing block 13 is sleeved on the outside of the first fixing band 11; a fixing tube 14 is fixedly connected to the side wall of the second fixing band 12; a fixing screw 15 is threadedly connected to the middle of the fixing tube 14; a compression fixing plate 16 is rotatably connected to the end of the fixing screw 15. During operation, when connecting cables, the connection points between cables or between cables and equipment often generate heat due to abnormally high current. Therefore, a temperature sensor 1 (specifically model ATE400) needs to be installed at the connection point to monitor the cable temperature in real time and reduce the occurrence of accidents. Temperature sensor 1, which resembles a watch in shape, has a pair of fixing straps, a first fixing strap 11 and a second fixing strap 12. A rubber fixing block 13 is provided in the middle of the first fixing strap 11 and the second fixing strap 12, so that the temperature sensor 1 and the pair of rubber fixing blocks 13 form a triangle. Then, the first fixing strap 11 is passed through the fixing tube 14, and the temperature sensor 1 is moved to the detection position. Then, the first fixing strap 11 is tightened, and the fixing screw 15 is turned so that the compression fixing plate 16 compresses and fixes the first fixing strap 11 inside the fixing tube 14, thereby completing the installation of the device. This device can be used on the outside of the already installed cable, which is convenient for installing temperature detection equipment on the cable of previous equipment. The detachable second fixing strap 12 and the first fixing strap 11 facilitate the maintenance and replacement of the equipment by the staff.

[0033] Furthermore, such as Figures 2-6As shown, the side wall of the rubber fixing block 13 has a through hole 131; the inner side wall of the through hole 131 is slidably connected to the side walls of the second fixing band 12 and the first fixing band 11; the side wall of the rubber fixing block 13 has multiple sets of grooves 132. During operation, when installing the equipment, the operator passes the rubber fixing block 13 through the through hole 131, so that the rubber fixing block 13 is located in the middle of the second fixing band 12 and the middle of the first fixing band 11. The through hole 131 facilitates the operator to adjust the position of the rubber fixing block 13, so that the temperature sensor 1 and the two rubber fixing blocks 13 are evenly distributed in a triangle. Since the equipment is fixed to the outside of the cable, the rubber fixing block 13 will be bent to a certain extent. Through the groove 132, the rubber fixing block 13 on the side with the groove 132 will shrink when bent. The groove 132 facilitates the shrinkage of the contact surface between the rubber fixing block 13 and the cable, thereby providing higher stability.

[0034] Furthermore, such as Figures 2-6 As shown, multiple sets of protrusions 17 are fixed to the side wall of the compression fixing plate 16; the protrusions 17 are arranged in an array. During operation, when the first fixing band 11 is fixed inside the fixing tube 14, the protrusions 17 will preferentially contact the first fixing band 11 through the protrusions 17 on the side wall of the compression fixing plate 16 and squeeze the first fixing band 11, thereby further improving the fixing effect of the device on the first fixing band 11, and thus improving the fixing effect of the device.

[0035] Working Principle: This device consists of an electrical fire monitoring display 100, a wireless data acquisition unit 101, an electrical fire monitoring sub-unit 102, and an electrical fire detector 103. The electrical fire monitoring display 100 and the wireless data acquisition unit 101 are connected via RS485 communication. The wireless data acquisition unit 101 and the electrical fire monitoring device are connected via Bluetooth communication. The electrical fire monitoring sub-unit 102 and the electrical fire detector 103 are connected via a two-wire bus communication. This utility model's electrical fire monitoring device boasts rich functions, high intelligence, powerful capabilities, compact size, convenient installation, low cost, long transmission distance, abundant display data, and stable and reliable performance. It is an effective and economical product that meets user needs.

[0036] When connecting cables, the connection points between cables or between cables and equipment often generate heat due to abnormal current. Therefore, a temperature sensor 1 (specifically, ATE400 model) needs to be installed at the connection point to monitor the cable temperature in real time and reduce the occurrence of accidents. The temperature sensor 1, resembling a watch in shape, has a pair of fixing straps: a first fixing strap 11 and a second fixing strap 12. Rubber fixing blocks 13 are located in the middle of the first and second fixing straps 11 and 12, forming a triangle with the temperature sensor 1 and the rubber fixing blocks 13. The first fixing strap 11 is then passed through a fixing tube 14. The temperature sensor 1 is then moved to the detection position, and the first fixing strap 11 is tightened. The fixing screw 15 is turned so that the compression fixing plate 16 presses and fixes the first fixing strap 11 inside the fixing tube 14, thus completing the installation of the equipment. This device can be used on the outside of already installed cables, facilitating the installation of temperature detection equipment on existing equipment. The detachable second fixing strap 12 and first fixing strap 11 make it easy to... During equipment maintenance and replacement, when installing the equipment, the staff inserts rubber fixing blocks 13 through through holes 131. This positions the rubber fixing blocks 13 in the middle of the second fixing band 12 and the middle of the first fixing band 11. The through holes 131 allow for easy adjustment of the position of the rubber fixing blocks 13, ensuring that the temperature sensor 1 and the two rubber fixing blocks 13 are evenly distributed in a triangular shape. Since the equipment is fixed to the outside of the cable, the rubber fixing blocks 13 will be subject to a certain degree of bending. The groove 132 allows the rubber fixing block 13 on one side of the groove to contract when bent. The groove 132 facilitates the contraction of the rubber fixing block 13 and the cable contact surface, thereby providing higher stability. The protrusion 17 provided on the side wall of the compression fixing plate 16 will preferentially contact the first fixing band 11 when the first fixing band 11 is fixed inside the fixing tube 14, and squeeze the first fixing band 11, thereby further improving the fixing effect of the equipment on the first fixing band 11, and thus improving the fixing effect of the equipment.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electrical fire monitoring device, comprising an electrical fire monitoring display (100), a wireless data acquisition unit (101), an electrical fire monitoring sub-unit (102), and an electrical fire detector (103); characterized in that: The electrical fire monitoring display (100) is electrically connected to the wireless collector (101), the wireless collector (101) is connected to the electrical fire monitoring sub-unit (102) via Bluetooth, and the electrical fire monitoring sub-unit (102) is electrically connected to the electrical fire detector (103).

2. The electrical fire monitoring device according to claim 1, characterized in that: The electrical fire monitoring display (100) is an HMI touch screen used to display the residual current, temperature data, alarm information of the system under test, and to set the operation of the system.

3. The electrical fire monitoring device according to claim 1, characterized in that: The wireless data acquisition unit (101) uses a Bluetooth to RS485 module for communication conversion between the electrical fire monitoring sub-unit (102) and the electrical fire monitoring display (100).

4. An electrical fire monitoring device according to claim 1, characterized in that: The electrical fire monitoring sub-unit (102) is a data acquisition unit used to centrally collect residual current, temperature data and alarm information from electrical fire detectors (103).

5. An electrical fire monitoring device according to claim 1, characterized in that: The electrical fire detector (103) is connected to a residual current sensor and a temperature sensor (1) to collect residual current and temperature data of the system under test and perform analysis and processing.

6. An electrical fire monitoring device according to claim 5, characterized in that: The temperature sensor (1) is fixedly connected to a first fixing band (11) on its side wall; the temperature sensor (1) is fixedly connected to a second fixing band (12) on its side wall; a rubber fixing block (13) is sleeved on the outside of the second fixing band (12); a rubber fixing block (13) is sleeved on the outside of the first fixing band (11); a fixing tube (14) is fixedly connected to the side wall of the second fixing band (12); a fixing screw (15) is threadedly connected to the middle of the fixing tube (14); and a compression fixing plate (16) is rotatably connected to the end of the fixing screw (15).

7. An electrical fire monitoring device according to claim 6, characterized in that: The side wall of the rubber fixing block (13) is provided with a through hole (131); the inner side wall of the through hole (131) is slidably connected to the side wall of the second fixing band (12) and the first fixing band (11); the side wall of the rubber fixing block (13) is provided with multiple sets of grooves (132).

8. An electrical fire monitoring device according to claim 6, characterized in that: Multiple sets of protrusions (17) are fixed to the side wall of the extrusion fixing plate (16); the protrusions (17) are arranged in an array.

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