Fault detection device for bus duct

Abstract

The utility model discloses a fault detection device for a bus duct, which belongs to the technical field of bus ducts and comprises bus duct main bodies connected with each other and connectors symmetrically mounted between the two bus duct main bodies, one end of each bus duct main body is fixedly provided with a connecting plate fixed with the corresponding connector, and the other end of each bus duct main body is fixedly provided with a connecting plate fixed with the corresponding connector. The fault detection device for the bus duct comprises a bus duct main body, a connecting plate is fixed on the bus duct main body, a control module is adhered and fixed on the outer wall of the bus duct main body, convex rods are fixed at two ends of the connecting plate, a temperature sensor is mounted on the connecting plate in an attached manner, and fasteners clamped with the convex rods sleeve the temperature sensor. And when the temperature sensor is disassembled, the fastening parts on the two sides of the groove are pulled, so that the fastening parts are elastically deformed to be disassembled from the convex rod, and the convenience of mounting and disassembling the temperature sensor is improved.

Description

Technical Field

[0001] This utility model belongs to the field of busbar technology, specifically relating to a fault detection device for busbars. Background Technology

[0002] Busbar trunking is a closed metal device made of copper or aluminum busbars, used to distribute large amounts of power to various components in a distributed system. It is increasingly replacing electrical wires and cables in indoor low-voltage power transmission trunk line projects.

[0003] Currently, busbar trunking requires power supply via connectors during use. The resistance of the connector connection is greater than that of the busbar trunking body. Therefore, when the busbar trunking overheats, the temperature of the connector will rise first. When the load on the busbar trunking is too high and the thermal conductivity is too high, it will affect its normal use. Therefore, temperature sensors are needed to monitor the temperature of the busbar trunking (connector). However, due to the lack of a connector for installing a stable sensor on the busbar trunking (connector), it is difficult for the temperature sensor to be attached to the busbar trunking (connector) and kept fixed. This makes it difficult for the temperature sensor to be kept fixed on the busbar trunking. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a fault detection device for bus trunking. This fault detection device for bus trunking aims to solve the technical problem that, under the prior art, the lack of a connector for installing a stable sensor in the bus trunking (connector) makes it difficult for the temperature sensor to adhere to the bus trunking (connector) and keep it fixed, resulting in the temperature sensor being difficult to keep fixed on the bus trunking.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a fault detection device for busbar trunking, comprising interconnected busbar trunking bodies and connectors symmetrically installed between two busbar trunking bodies. Each busbar trunking body has a connecting plate fixed to one end, which is also fixed to the connector. A control module is bonded to the outer wall of the busbar trunking body. Both ends of the connecting plate are fixed with protruding rods, and a temperature sensor is attached to the connecting plate. The temperature sensor is fitted with a fastener that engages with the protruding rod.

[0008] When using this technical solution, convex rods are symmetrically fixed on the connecting plate of the busbar trunking body. During installation, the temperature sensor is attached to the side wall of the connecting plate, and the U-shaped bracket on the fastener is fitted onto the temperature sensor. The arc-shaped grooves on the fastening parts at both ends of the U-shaped bracket are fitted onto the convex rods. The protrusions on the convex rods keep the fastening parts fixed, so that the temperature sensor maintains its temperature on the connecting plate. When disassembling the temperature sensor, the fastening parts on both sides of the groove are pulled, causing the fastening parts to elastically deform and be removed from the convex rods, which improves the convenience of temperature sensor installation and disassembly.

[0009] Preferably, insulating plates are alternately installed between the metal plates of the two busbar trunking bodies, and bolts are inserted between the two connectors.

[0010] Furthermore, the bolt is inserted into multiple insulating plates, and a nut is threaded onto one end of the bolt that passes through the insulating plate.

[0011] Furthermore, a wire is fixedly installed on the temperature sensor, and the wire is connected to the device in the control module.

[0012] Furthermore, the fastener includes a U-shaped bracket that fits onto the temperature sensor and fastening parts fixed at both ends of the U-shaped bracket.

[0013] Furthermore, an arc-shaped groove is provided at the center of the fastening part, and grooves communicating with the arc-shaped groove are provided at both ends of the fastening part.

[0014] Furthermore, a protrusion is fixedly installed on the protruding rod, and the protruding rod is inserted into the arc-shaped groove, with the protrusion abutting against the side wall of the fastening part.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features symmetrically fixed protruding rods on the connecting plate of the busbar trunking body. During installation, the temperature sensor is attached to the side wall of the connecting plate, and a U-shaped bracket on the fastener is fitted onto the temperature sensor. The arc-shaped grooves on the fastening parts at both ends of the U-shaped bracket are fitted onto the protruding rods, and the protrusions on the protruding rods keep the fastening parts fixed, thus maintaining the temperature of the temperature sensor on the connecting plate. When disassembling the temperature sensor, the fastening parts on both sides of the groove are pulled, causing the fastening parts to elastically deform and be removed from the protruding rods, thereby improving the convenience of temperature sensor installation and disassembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the temperature sensor in this utility model;

[0021] Figure 3 This is a cross-sectional view of the connecting plate in this utility model;

[0022] Figure 4 This is a schematic diagram of the fastener structure in this utility model.

[0023] The labels in the attached diagram are as follows: 1. Busbar trunking body; 2. Connector; 3. Bolt; 4. Temperature sensor; 5. Wire; 6. Control module; 7. Connecting plate; 8. Nut; 9. Insulation plate; 10. Fastening part; 11. Fastener; 12. Protruding rod; 13. Protrusion; 14. U-shaped frame; 15. Arc groove; 16. Groove. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This specific embodiment is a fault detection device for busbar trunking, and its structural schematic diagram is shown below. Figure 1 and Figure 2 As shown, the system includes interconnected busbar trunking bodies 1 and connectors 2 symmetrically installed between the two busbar trunking bodies 1. One end of each busbar trunking body 1 is fixed with a connecting plate 7 that is fixed to the connector 2. A control module 6 is glued and fixed to the outer wall of the busbar trunking body 1. Both ends of the connecting plate 7 are fixed with protruding rods 12. A temperature sensor 4 is attached to the connecting plate 7. The temperature sensor 4 is fitted with a fastener 11 that engages with the protruding rod 12.

[0026] Insulating plates 9 are installed alternately between the metal plates of the two busbar trunking bodies 1. Metal plates for connecting the conductive plates of the busbar trunking bodies 1 are fixed on the inner wall of the insulating plates 9. Bolts 3 are inserted between the two connectors 2. The bolts 3 are inserted into multiple insulating plates 9, and a nut 8 is threaded onto one end of the bolt 3 that passes through the insulating plate 9. A wire 5 is fixedly installed on the temperature sensor 4. The wire 5 is connected to the equipment in the control module 6. The control module 6 is equipped with a temperature sensor PT100 (platinum resistance), a temperature control switch KSD9700 (normally closed type), a signal transmitter XTR115 (TI), a microcontroller STM32F103C8T6, a relay module HF32F / 5-Z, an HMI display Wecon LX3V-0406E, and a communication module RS485 (MAX3485 chip).

[0027] like Figure 3 and Figure 4 As shown, the fastener 11 includes a U-shaped bracket 14 that fits onto the temperature sensor 4 and fastening parts 10 fixed at both ends of the U-shaped bracket 14. The connecting plate 7 and the connector 2 are both made of metal, which can effectively conduct heat. An arc-shaped groove 15 is provided at the center of the fastening part 10, and grooves 16 that communicate with the arc-shaped groove 15 are provided at both ends of the fastening part 10. A protrusion 13 is fixedly installed on the protruding rod 12, and the protruding rod 12 fits into the arc-shaped groove 15. The protrusion 13 abuts against the side wall of the fastening part 10. Next, when the temperature sensor 4 is installed, it is attached to the side wall of the connecting plate 7, and the U-shaped bracket 14 on the fastener 11 is fitted and fastened to the temperature sensor 4. The arc grooves 15 on the fastening parts 10 at both ends of the U-shaped bracket 14 are fitted and fastened to the protruding rod 12. The protrusions 13 on the protruding rod 12 keep the fastening parts 10 fixed, so that the temperature sensor 4 is kept at a certain temperature on the connecting plate 7. When the temperature sensor 4 is disassembled, the fastening parts 10 on both sides of the groove 16 are pulled, so that the fastening parts 10 undergo elastic deformation and are disassembled from the protruding rod 12.

[0028] Working principle: When using the device of this technical solution, the PT100 temperature sensor 4 collects temperature data every 10 seconds and outputs a 4-20mA signal through the XTR115 transmitter.

[0029] Warning threshold: 70°C (HMI displays a yellow warning);

[0030] Alarm threshold: 85℃ (triggers audible and visual alarm and records fault location);

[0031] The STM32 microcontroller filters the signal (using a moving average algorithm) to eliminate transient interference;

[0032] If a temperature ≥70°C is detected, a warning window will pop up on the HMI screen, displaying the faulty busbar section number (e.g., "Busbar-A12").

[0033] When the temperature is ≥85°C:

[0034] The KSD9700 temperature control switch physically disconnects, forcibly cutting off relay HF32F;

[0035] The STM32 sends a Modbus command (function code 0x05) to the host computer via the MAX3485. Example message:

[0036] Send text message

[0037]

[01]

[05]

[00]

[01] [FF]

[00] [8C][3A] / / Control relay 1 to operate

[0038] The AD16-22SM audible and visual alarm is activated (flash frequency 1Hz, sound pressure ≥85dB).

[0039] The HMI screen automatically redirects to the fault page, displaying: text

[0040] Fault code: F-201 (over-temperature fault)

[0041] Location: Busbar section B, layer 3 connector 2

[0042] Current temperature: 87.5°C

[0043] Historical record: Alarm triggered on 2023-11-02 at 14:25:30

[0044] Data is uploaded to the cloud database via RS485 (storage period: one complete data record every 5 minutes);

[0045] After manually confirming that the fault has been resolved, press the "Reset" button on the HMI screen (send Modbus command 0x06);

[0046] Relay reset requires manual operation (mechanical self-locking design prevents accidental reset; the working mode and installation layout of the components in control module 6 are existing technologies and are not shown in the figure).

[0047] All technical features in this embodiment can be freely combined according to actual needs.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fault detection device for busbar trunking, characterized in that, The system includes interconnected busbar trunking bodies (1) and connectors (2) symmetrically installed between the two busbar trunking bodies (1). One end of each busbar trunking body (1) is fixed with a connecting plate (7) that is fixed to the connector (2). A control module (6) is glued and fixed to the outer wall of the busbar trunking body (1). Both ends of the connecting plate (7) are fixed with protruding rods (12). A temperature sensor (4) is attached to the connecting plate (7). The temperature sensor (4) is fitted with a fastener (11) that engages with the protruding rod (12).

2. The fault detection device for busbar trunking according to claim 1, characterized in that, Insulating plates (9) are installed alternately between the metal plates of the two busbar trunking bodies (1), and bolts (3) are inserted between the two connectors (2).

3. A fault detection device for busbar trunking according to claim 2, characterized in that, The bolt (3) is inserted into a plurality of insulating plates (9), and a nut (8) is threaded onto one end of the bolt (3) that passes through the insulating plate (9).

4. A fault detection device for busbar trunking according to claim 1, characterized in that, A wire (5) is fixedly installed on the temperature sensor (4), and the wire (5) is connected to the device in the control module (6).

5. A fault detection device for busbar trunking according to claim 1, characterized in that, The fastener (11) includes a U-shaped bracket (14) that fits onto the temperature sensor (4) and fastening parts (10) fixed at both ends of the U-shaped bracket (14).

6. A fault detection device for busbar trunking according to claim 5, characterized in that, An arc-shaped groove (15) is provided at the center of the fastening part (10), and grooves (16) communicating with the arc-shaped groove (15) are provided at both ends of the fastening part (10).

7. A fault detection device for busbar trunking according to claim 6, characterized in that, A protrusion (13) is fixedly installed on the protruding rod (12), and the protruding rod (12) is inserted into the arc groove (15). The protrusion (13) abuts against the side wall of the fastening part (10).

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