Intelligent bus duct signal acquisition device

Abstract

The utility model discloses an intelligent bus duct signal acquisition device, which belongs to the technical field of power distribution system signal acquisition, and comprises a temperature acquisition module, a temperature sensor and an insulation support member, the temperature acquisition module is arranged on the outer side of a joint cover plate of a bus duct main body, and the insulation support member is arranged on the inner side of the joint cover plate. A three-core shielding wire penetrates through the insulating supporting piece, one end of the three-core shielding wire is provided with a temperature sensor, the other end of the three-core shielding wire is connected with a temperature acquisition module, the temperature sensor is in lap joint with a bus of the bus duct main body, and the temperature sensor is a programmable digital temperature sensor. According to the utility model, the real-time temperature of the bus can be directly and rapidly acquired, and the state of the bus duct can be evaluated more accurately.

Description

Technical Field

[0001] The utility model belongs to the technical field of power distribution system signal acquisition, and in particular relates to an intelligent bus duct signal acquisition device. Background Art

[0002] In power distribution systems, bus ducts are mostly installed in shafts and mid-air. They are large in scale and have complex on-site locations. Due to long-term operation and the influence of the surrounding environment, their joints will experience thermal expansion and contraction, surface scaling, oxidation or corrosion, resulting in loose contacts and poor contact. Troubleshooting and repairs are very labor-intensive and it is not easy to find the fault point. Some equipment lacks long-term and in-depth monitoring and maintenance, and cannot evaluate the status of the bus duct. Therefore, the process of real-time temperature monitoring of the signal acquisition device as a core component is particularly important.

[0003] Currently, the commonly used installation methods for switchgear temperature sensors in the market include adhesive, clip-on, fixed, and wrap-around installations. Sufficient safety distances are maintained between the busbars in the switchgear to accommodate the installation of various sensors and enable the collection of temperature data during equipment operation. In busbar trunking systems, the main structure is compact, consisting of a cover, base, and side panels. The insulation-coated busbars of each phase are riveted together to form a fully enclosed, high-strength busbar trunking. Only certain busbar connection locations are left at the ends of the busbar trunking. The phase spacing between busbars is only 16 to 20 mm, and the space is limited. During busbar trunking operation, heat points will also be concentrated here. Temperature rise is the most important factor in busbar trunking monitoring data. Therefore, temperature sensors suitable for switchgear cannot be used for busbar trunking temperature measurement.

[0004] Existing infrared technology utilizes dot-matrix infrared temperature probes, which can adjust the probe light source angle to compensate for temperature measurement deviations. However, this requires extensive temperature rise data verification to ensure accurate data collection, and the equipment is expensive. Radio frequency identification technology also uses sensors with a size that directly affects data collection stability. While fiber optic sensing for temperature data collection is inexpensive, its host computer costs are high, making it unsuitable for small and medium-sized projects. Based on this, we designed an intelligent busbar signal acquisition device. Utility Model Content

[0005] The purpose of the utility model is to provide an intelligent bus duct signal acquisition device, aiming to solve the problems existing in the prior art in the above background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An intelligent bus duct signal acquisition device includes a temperature acquisition module, a temperature sensor and an insulating support. The temperature acquisition module is arranged on the outside of the joint cover of the bus duct body, and the insulating support is arranged on the inside of the joint cover. A three-core shielded wire is passed through the insulating support. A temperature sensor is set at one end of the three-core shielded wire, and the other end is connected to the temperature acquisition module. The temperature sensor is overlapped with the bus of the bus duct body. The temperature sensor adopts a programmable digital temperature sensor.

[0008] Furthermore, an integrated protective shell is provided on the outside of the connector cover plate, the integrated protective shell adopts a box slot structure, the temperature acquisition module is arranged in the integrated protective shell, a cable waterproof connector is provided on one side wall of the integrated protective shell, a four-core shielded wire is passed through the cable connector, and the four-core shielded wire is connected to the power communication port of the temperature acquisition module.

[0009] Furthermore, the integrated protective shell and the connector cover are provided with a through slot, the through slot is aligned with the insulating support, the through slot is provided with a pressure plate, and the three-core shielded wire passes through the through slot and the pressure plate.

[0010] Furthermore, the pressure plate is provided with a clamping mechanism and a through hole for the three-core shielded wire to pass through. The clamping mechanism includes a slide groove arranged on one side of the through hole and connected to the through hole. The slide groove is embedded in the pressure plate. A clamping plate is provided in the slide groove. A spring is provided between the clamping plate and the inner wall of the slide groove. The spring is used to drive the clamping plate to cooperate with the through hole to clamp the three-core shielded wire. A connecting rod is passed through the pressure plates located on both sides of the through hole. One end of the connecting rod is connected to the clamping plate. A baffle is provided between the other ends of the connecting rods on both sides. The baffle is located on the outside of the pressure plate.

[0011] Furthermore, an integrated protective cover is provided at the opening of the integrated protective shell, and the integrated protective cover is provided with a protective rubber strip.

[0012] Compared with the shortcomings and deficiencies of the prior art, the present invention has the following beneficial effects:

[0013] The utility model provides an intelligent bus duct signal acquisition device, in which a temperature acquisition module is arranged on the outside of a joint cover plate, and an insulating support is arranged on the inside thereof. The temperature sensor is connected to the temperature acquisition module through a three-core shielded cable, and a temperature sensor is connected to the busbar to directly measure the temperature. Compared with other measurement methods and equipment, the temperature measurement process does not require adjustment of the measurement angle or temperature compensation. The real-time temperature of the internal busbar during the operation of the bus duct can be directly and quickly acquired, which helps to more accurately evaluate the status of the bus duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the connection structure between the temperature sensor and the temperature acquisition module in the utility model.

[0015] Figure 2 It is a schematic diagram of the connection structure between the temperature sensor and the busbar in the utility model.

[0016] Figure 3 It is a schematic diagram of the internal structure of the integrated protective shell in the utility model.

[0017] Figure 4 It is a structural schematic diagram of the clamping mechanism provided on the middle pressure plate of the utility model.

[0018] In the figure: 1-busbar duct body; 2-busbar; 3-connector cover; 4-temperature acquisition module; 5-insulating support; 6-temperature sensor; 7-three-core shielded cable; 8-line channel; 9-integrated protective shell; 10-integrated protective cover; 11-cable waterproof connector; 12-guide rail; 13-through groove; 14-pressure plate; 15-through hole; 16-baffle; 17-connecting rod; 18-clamping plate; 19-spring; 20-slide groove. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] The bus duct body 1 includes a bus bar 2 , with side panels on both sides of the bus bar 2 and joint cover plates 3 on the top and bottom.

[0021] Reference Figures 1-4 , an intelligent bus duct signal acquisition device, including a temperature acquisition module 4, a temperature sensor 6 and an insulating support 5, wherein the temperature acquisition module 4 is arranged on the outside of the joint cover 3, the insulating support 5 is arranged on the inside of the joint cover 3, the insulating support 5 is provided with a line channel 8, the line channel 8 is passed through a three-core shielded wire 7, one end of the three-core shielded wire 7 is connected to the temperature sensor 6, and the other end is connected to the temperature acquisition signal port on the temperature acquisition module 4, the temperature sensor 6 is arranged at the end of the line channel 8 close to the bus 2, the temperature sensor 6 is in contact with the bus 2, and the temperature sensor 6 uses thermal sensing technology to realize temperature data acquisition of the bus 2.

[0022] The temperature sensor 6 uses a programmable digital temperature sensor, and its three pins need to be welded to the three-core shielded wire 7. During welding, the middle pin is insulated, which can simply and conveniently solve the problem of isolating the pins in pairs, and the pin welding point is insulated.

[0023] The number of line channels 8 set on the insulating support 5 is 3 or 4 to adapt to different bus duct bodies 1. The end of the line channel 8 of the insulating support 5 is aligned with the bus 2, which can directly guide the temperature sensor 6 to be accurately positioned with the bus 2.

[0024] In order to ensure the long-term stable operation of the temperature acquisition module 4, an integrated protective shell 9 is set on the outside of the joint cover 3. The integrated protective shell 9 adopts a box slot structure, and its one side opening is detachably connected to the integrated protective cover 10. The detachable connection includes conventional connection methods such as bolt connection and clamping. The temperature acquisition module 4 is arranged in the integrated protective shell 9. Specifically, the integrated protective shell 9 includes a bottom plate and side plates that surround and are vertically arranged around the bottom plate. The opening of the integrated protective shell 9 is opposite to the bottom plate, and the bottom plate is arranged on the outside of the joint cover 3. The temperature acquisition module 4 is arranged on the bottom plate. The insulating support 5 is located below the bottom plate on one side of the temperature acquisition module 4. The three-core shielded wire 7 passes through the joint cover 3 and the bottom plate in turn to be connected to the temperature acquisition module 4. A cable waterproof connector 11 is provided on the outside of the side plate on the other side of the temperature acquisition module 4. When used for on-site wiring, the four-core shielded wire passes through the cable waterproof connector 11 and the side plate to be connected to the power communication port on the temperature acquisition module 4. At this time, the cable waterproof connector 11 is tightened to play a role in waterproofing and protective insulation.

[0025] A protective rubber strip is provided on the inner edge of the integrated protective cover 10, which helps to improve the protective insulation effect.

[0026] A guide rail 12 is provided on the inner side of the bottom plate, and the temperature acquisition module 4 is engaged with the guide rail 12 , which facilitates the installation and maintenance of the temperature acquisition module 4 and facilitates the position adjustment of the temperature acquisition module 4 .

[0027] In order to facilitate the installation of the three-core shielded wire 7, a connecting groove 13 is set between the joint cover 3 and the base plate. The groove 13 is aligned with the line channel 8 of the insulating support 5. The groove 13 provides convenience for the installation of multiple three-core shielded wires 7. A pressure plate 14 is set at the groove 13. The pressure plate 14 is provided with a through hole 15 for the three-core shielded wire 7 to pass through. The pressure plate 14 is set at the top of the groove 13. The pressure plate 14 is used to fix the position of the three-core shielded wire 7.

[0028] To facilitate fine-tuning the position of the temperature sensor 6, a clamping mechanism is provided on the pressure plate 14 at the through-hole 15. The clamping mechanism includes a slide 20 embedded in the pressure plate 14. One side of the slide 20 is connected to the through-hole 15. A clamping plate 18 is provided in the slide 20. A spring 19 is provided between the clamping plate 18 and the inner wall of the slide 20. The spring 19 is used to push the clamping plate 18 to cooperate with the side wall of the through-hole 15 to clamp and fix the three-core shielded wire 7. Connecting rods 17 are passed through the pressure plate 14 on both sides of the through-hole 15. One end of the connecting rod 17 is connected to the clamping plate 18, and the other end is connected to the baffle 16. The baffle 16 is connected to the connecting rods 17 on both sides. The baffle 16 is located on the outside of the pressure plate 14. Pressing the baffle 16 drives the clamping plate 18 through the connecting rod 17 to compress the spring 19, causing the clamping plate 18 to move toward the inner wall of the slide 20, separating the clamping plate 18 from the three-core shielded wire 7. By moving the three-core shielded wire 7, the position of the temperature sensor 6 is adjusted, and the temperature sensor 6 is connected to the busbar 2.

[0029] When the intelligent busbar signal acquisition device is in use, the integrated protective shell 9 is arranged on the joint cover 3, and a through groove 13 is provided on the joint cover 3 and the bottom plate of the integrated protective shell 9. The insulating support 5 is fixed below the joint cover 3 and aligned with the through groove 13. The temperature acquisition module 4 is arranged in the integrated protective shell 9 through the guide rail 12. A cable waterproof connector 11 is provided on the outer side of the side plate of the integrated protective shell 9. The four-core shielded wire passes through the cable waterproof connector 11 and the side plate to be connected to the power communication port on the temperature acquisition module 4. A three-core shielded wire 7 is passed through the line channel 8 of the insulating support 5. A temperature sensor 6 is provided at one end of the three-core shielded wire 7. The temperature sensor 6 is overlapped with the busbar 2, and the other end passes through the pressing plate 14 to be connected to the temperature acquisition signal port on the temperature acquisition module 4. The pressing plate 14 is arranged at the top of the through groove 13. The three-core shielded wire 7 can be adjusted by the clamping mechanism to adjust the position of the temperature sensor 6. An integrated protective cover 10 is provided at the top opening of the integrated protective shell 9. The temperature sensor 6 and the temperature acquisition module 4 are used to realize real-time monitoring of the busbar temperature.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent bus duct signal acquisition device, characterized in that: The invention comprises a temperature acquisition module (4), a temperature sensor (6) and an insulating support member (5), wherein the temperature acquisition module (4) is arranged on the outside of the joint cover plate (3) of the bus duct body (1), the insulating support member (5) is arranged on the inside of the joint cover plate (3), a three-core shielded wire (7) is passed through the insulating support member (5), a temperature sensor (6) is arranged at one end of the three-core shielded wire (7), and the other end is connected to the temperature acquisition module (4), the temperature sensor (6) is overlapped with the busbar (2) of the bus duct body (1), and the temperature sensor (6) adopts a programmable digital temperature sensor.

2. The intelligent bus duct signal acquisition device according to claim 1, characterized in that: An integrated protective shell (9) is provided on the outside of the connector cover (3), the integrated protective shell (9) adopts a box-trough structure, the temperature acquisition module (4) is provided in the integrated protective shell (9), a cable waterproof connector (11) is provided on a side wall of one side of the integrated protective shell (9), a four-core shielded wire is passed through the cable waterproof connector (11), and the four-core shielded wire is connected to the power communication port of the temperature acquisition module (4).

3. The intelligent bus duct signal acquisition device according to claim 2, characterized in that: The integrated protective housing (9) and the connector cover (3) are provided with a through slot (13), the through slot (13) is aligned with the insulating support (5), the through slot (13) is provided with a pressure plate (14), and the three-core shielded wire (7) passes through the through slot (13) and the pressure plate (14).

4. The intelligent bus duct signal acquisition device according to claim 3, characterized in that: The pressure plate (14) is provided with a clamping mechanism and a through hole (15) for the three-core shielded wire (7) to pass through. The clamping mechanism includes a slide groove (20) arranged on one side of the through hole (15) and connected to the through hole (15). The slide groove (20) is embedded in the pressure plate (14). A clamping plate (18) is provided in the slide groove (20). A spring (19) is provided between the clamping plate (18) and the inner wall of the slide groove (20). The spring (19) is used to drive the clamping plate (18) to cooperate with the through hole (15) to clamp the three-core shielded wire (7). The pressure plates (14) located on both sides of the through hole (15) are provided with connecting rods (17). One end of the connecting rod (17) is connected to the clamping plate (18). A baffle (16) is provided between the other ends of the connecting rods (17) on both sides. The baffle (16) is located on the outside of the pressure plate (14).

5. The intelligent bus duct signal acquisition device according to claim 2, characterized in that: An integrated protective cover (10) is provided at the opening of the integrated protective shell (9), and the integrated protective cover (10) is provided with a protective rubber strip.

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