A transformer busbar monitoring device

By designing a transformer busbar monitoring device including temperature sensor, copper sheet, positioning assembly, fixing assembly and adjustment assembly, the problem of difficulty in monitoring the internal temperature of the transformer busbar in the prior art is solved, and the monitoring effect of stable installation and adaptation to different thicknesses is achieved, and the fault warning capability is enhanced.

CN222704185UActive Publication Date: 2025-04-01BEIJING FIRST SWITCHGEAR CO LTD
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Patent Information

Application Number
CN202420742941.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-11
Publication Date
2025-04-01
Estimated Expiration
2034-04-11

AI Technical Summary

Technical Problem

The prior art is difficult to effectively monitor the internal temperature of the transformer busbar, resulting in insufficient fault warning capabilities and inconvenient installation of the temperature sensor, which cannot be adjusted according to the thickness of the busbar.

Method used

A transformer busbar monitoring device is designed, including a temperature sensor, a copper sheet, a positioning assembly, a fixing assembly and a regulating assembly. The temperature sensor is in close contact with the busbar through the copper plate, the positioning assembly and the fixing assembly ensure the stable installation of the sensor, and the adjustment assembly allows adaptation to busbars of different thicknesses.

Benefits of technology

It realizes stable installation of temperature sensors and real-time temperature monitoring, can adapt to busbars of different thicknesses, enhances fault warning capabilities, and simplifies the installation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of transformer busbar temperature monitoring, and specifically to a transformer busbar monitoring device, and its technical scheme is: comprising a busbar and a temperature sensor, one end of the temperature sensor is connected with a copper sheet, a positioning component is installed on one side of the outer end of the temperature sensor, a fixing component is connected between the copper sheet and the busbar, and adjustment components are symmetrically installed on both sides of the temperature sensor. The beneficial effect of the utility model is: when the temperature sensor is installed, it is necessary to firstly fit the copper sheet at one end thereof to one side of the busbar, and at the same time, a guide plate at the lower end of one side of the positioning plate will fit to the other side of the busbar, and a screw can movably penetrate a connecting hole, a through groove and a guide groove. After the screw penetrates, one end thereof will press and limit the copper sheet through a screw head and a gasket, and the other end of the screw will be limited by a nut. At this time, the temperature sensor and the copper sheet will be limited and fixed, so that the temperature sensor can use the copper sheet to monitor the temperature of the busbar in real time.
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Description

Technical Field

[0001] The utility model relates to the field of transformer busbar temperature monitoring, in particular to a transformer busbar monitoring device. Background Art

[0002] There is contact resistance at the transformer busbar and cable joints. When a large current passes through, heat will be generated, which can easily lead to accidents such as equipment burning or sudden power outages. In the past, busbar monitoring only relied on operation and maintenance personnel to patrol with handheld infrared thermal imagers, which was time-consuming and labor-intensive, and the information obtained was limited. The operation and maintenance personnel could judge whether the busbar was overloaded based on experience, but they could not grasp data such as the internal temperature of the busbar joint, making it difficult to provide effective fault warnings. Temperature sensors are also installed near some transformer busbars to monitor the temperature of the transformer busbar, but the temperature sensors are inconvenient to install and cannot be adjusted according to the thickness of the busbar, making them inconvenient to use.

[0003] Therefore, it is necessary to invent a transformer busbar monitoring device. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a transformer busbar monitoring device, comprising a busbar and a temperature sensor, wherein the temperature sensor is arranged at one end of the busbar, a copper sheet is connected to one end of the temperature sensor, a positioning component is installed on one side of the outer end of the temperature sensor, a fixing component is connected between the copper sheet and the busbar, and adjustment components are symmetrically installed on both sides of the temperature sensor;

[0006] The positioning assembly includes a positioning plate and a guide plate installed at the lower end of one side of the positioning plate, and a guide groove is provided in the middle of the lower end of the guide plate.

[0007] Based on the above characteristics: When installing the temperature sensor, you need to first stick the copper sheet at one end of it to one side of the busbar, and at the same time, the guide plate at the lower end of one side of the positioning plate will stick to the other side of the busbar. At this time, the copper sheet and the guide plate will stick to the two sides of the busbar, and the positioning plate will be limited at one end of the busbar. Finally, the copper sheet, the guide plate and the busbar can be fixed by the fixing component, which not only makes the copper sheet close to the surface of the busbar, but also facilitates the temperature sensor to use the copper sheet to monitor the temperature of the busbar in real time. At the same time, the positioning plate and the guide plate can support the temperature sensor and enhance the fixing effect of the temperature sensor. Due to the uncertainty of the thickness of the busbar, the positioning plate and the guide plate can be driven to move by the adjusting component, which facilitates the adjustment of the distance between the guide plate and the copper sheet, so that it can stick to both sides of busbars of different thicknesses.

[0008] Preferably, a connecting hole is provided in the middle of one end of the busbar.

[0009] Based on the above features: the fixing component can be fixed through the connecting hole passing through the busbar.

[0010] Preferably, limit sliders are symmetrically installed on both sides of the temperature sensor, and the limit sliders are located above the adjustment component.

[0011] Based on the above features: the limit slider can guide and limit the positioning plate, so that the positioning plate can maintain parallel movement, thereby preventing the positioning plate from detaching from the two sides of the temperature sensor.

[0012] Preferably, a through groove is provided in the middle of the lower end of the copper sheet, and the connection hole, the through groove and the guide groove have the same aperture.

[0013] Based on the above features: when the connecting hole, the through groove and the guide groove are aligned, the fixing assembly can be used to penetrate and fix them.

[0014] Preferably, a limiting sliding groove is provided on the inner wall of the positioning plate, and a convex tooth is provided on the lower end of the positioning plate.

[0015] Based on the above characteristics: the limiting sliding groove and the limiting sliding block are slidably connected, and the adjustment component can drive the positioning plate to move and adjust through the convex teeth.

[0016] Preferably, the fixing assembly includes a screw and a gasket arranged at one end of the screw, and a nut is threadedly connected to the outer end of the screw.

[0017] Based on the above features: the screw can be movably passed through the connection hole, through slot and guide slot. When the screw is passed through, one end of the screw will be pressed and limited by the screw head and gasket to prevent the copper sheet from being separated from the busbar, and the other end of the screw will be limited by the nut to prevent the guide plate from being separated from the other side of the busbar.

[0018] Preferably, the adjustment assembly includes a protective shell and a gear installed in the middle of the protective shell, a damping shaft is installed in the middle of the gear, a knob is installed at one end of the damping shaft, and the knob is located on one side of the outer end of the protective shell.

[0019] Based on the above features: when it is necessary to adjust the movement of the positioning plate and the guide plate, the personnel can drive the damping shaft and the gear to rotate through the knob, and when the gear rotates, it will mesh with the convex teeth, so that the positioning plate and the guide plate will move.

[0020] The beneficial effects of the utility model are:

[0021] 1. Strengthen the fixing effect of the temperature sensor. When installing the temperature sensor, the copper sheet at one end of the temperature sensor needs to be attached to one side of the busbar first. At the same time, the guide plate at the lower end of one side of the positioning plate will be attached to the other side of the busbar. When the connecting hole, the through slot and the guide slot are aligned, the screw can be movably penetrated through the connecting hole, the through slot and the guide slot. After the screw is penetrated, one end of the screw will be pressed and limited by the screw head and the gasket to prevent the copper sheet from separating from the busbar, and the other end of the screw will be limited by the nut to prevent the guide plate from separating from the other side of the busbar. At this time, the temperature sensor and the copper sheet will be limited and fixed, which is convenient for the temperature sensor to use the copper sheet to monitor the temperature of the busbar in real time.

[0022] 2. Due to the uncertainty of the thickness of the busbar, before the temperature sensor and the copper sheet are installed, the distance between the copper sheet and the guide plate can be adjusted according to the thickness of the busbar. When the positioning plate and the guide plate need to be adjusted to move, the personnel can drive the damping shaft and the gear to rotate through the knob. When the gear rotates, it will engage with the convex teeth, causing the positioning plate and the guide plate to move, so that the copper sheet and the guide plate can fit on both sides of the busbars with different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A diagram showing the connection status of a busbar and a fixed component of a transformer busbar monitoring device provided by the utility model;

[0024] Figure 2 A busbar and fixed component disassembly state diagram of a transformer busbar monitoring device provided by the utility model;

[0025] Figure 3 A schematic diagram of the structure of a copper sheet and positioning assembly of a transformer busbar monitoring device provided by the utility model;

[0026] Figure 4 A transformer busbar monitoring device provided by the utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] In the figure: 1. busbar; 11. connecting hole; 2. temperature sensor; 21. limit slider; 3. copper sheet; 31. through slot; 4. positioning assembly; 41. positioning plate; 411. limit slide slot; 412. convex tooth; 42. guide plate; 43. guide slot; 5. fixing assembly; 51. screw; 52. gasket; 53. nut; 6. adjustment assembly; 61. protective shell; 62. gear; 63. damping shaft; 64. knob. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] See attached Figure 1-4 The utility model provides a transformer busbar monitoring device, comprising a busbar 1 and a temperature sensor 2, wherein the temperature sensor 2 is arranged at one end of the busbar 1, a copper sheet 3 is connected to one end of the temperature sensor 2, a positioning component 4 is installed on one side of the outer end of the temperature sensor 2, a fixing component 5 is connected between the copper sheet 3 and the busbar 1, and adjustment components 6 are symmetrically installed on both sides of the temperature sensor 2;

[0030] The positioning assembly 4 includes a positioning plate 41 and a guide plate 42 installed at the lower end of one side of the positioning plate 41 , and a guide groove 43 is formed in the middle of the lower end of the guide plate 42 .

[0031] The temperature sensor 2 is wirelessly connected to the monitoring terminal. When the temperature sensor 2 is installed, the copper sheet 3 at one end thereof needs to be firstly attached to one side of the busbar 1, and at the same time, the guide plate 42 at the lower end of one side of the positioning plate 41 will be attached to the other side of the busbar 1. At this time, the copper sheet 3 and the guide plate 42 will be attached to the two sides of the busbar 1, and the positioning plate 41 will be limited at one end of the busbar 1. Finally, the copper sheet 3, the guide plate 42 and the busbar 1 can be fixed by the fixing component 5, which not only makes the copper sheet 3 close to the surface of the busbar 1, but also facilitates the temperature sensor 2 to use the copper sheet 3 to monitor the temperature of the busbar 1 in real time. At the same time, the positioning plate 41 and the guide plate 42 can support the temperature sensor 2 and strengthen the fixing effect of the temperature sensor 2. Due to the uncertainty of the thickness of the busbar 1, the positioning plate 41 and the guide plate 42 can be driven to move by the adjusting component 6, so as to facilitate the adjustment of the distance between the guide plate 42 and the copper sheet 3, so that it can be attached to the two sides of the busbar 1 with different thicknesses.

[0032] Preferably, a connection hole 11 is opened in the middle of one end of the busbar 1.

[0033] The fixing assembly 5 can penetrate the busbar 1 through the connecting hole 11 for fixing.

[0034] Preferably, limit sliders 21 are symmetrically installed on both sides of the temperature sensor 2 , and the limit sliders 21 are located above the adjustment component 6 .

[0035] The limiting slider 21 can guide and limit the positioning plate 41 so that the positioning plate 41 can maintain parallel movement and prevent the positioning plate 41 from being separated from the two sides of the temperature sensor 2.

[0036] Preferably, a through slot 31 is provided in the middle of the lower end of the copper sheet 3 , and the connecting hole 11 , the through slot 31 and the guide slot 43 have the same aperture.

[0037] When the connecting hole 11 , the through slot 31 and the guide slot 43 are aligned, the fixing assembly 5 can be used to penetrate and fix them.

[0038] Preferably, a limiting sliding groove 411 is provided on the inner wall of the positioning plate 41 , and a protruding tooth 412 is provided at the lower end of the positioning plate 41 .

[0039] The limiting sliding groove 411 and the limiting sliding block 21 are slidably connected, and the adjusting component 6 can drive the positioning plate 41 to move and adjust through the protruding teeth 412 .

[0040] Preferably, the fixing assembly 5 includes a screw 51 and a washer 52 disposed at one end of the screw 51 , and a nut 53 is threadedly connected to the outer end of the screw 51 .

[0041] The screw 51 can movably pass through the connecting hole 11, the through groove 31 and the guide groove 43. After the screw 51 passes through, one end of the screw 51 will press and limit the copper sheet 3 through the screw head and the gasket 52 to prevent the copper sheet 3 from being separated from the busbar 1. At the same time, the gasket 52 is arranged to prevent the screw head from squeezing and damaging the copper sheet 3, and the other end of the screw 51 will be limited by the nut 53 to prevent the guide plate 42 from being separated from the other side of the busbar 1.

[0042] Preferably, the adjustment assembly 6 includes a protective shell 61 and a gear 62 installed in the middle of the protective shell 61 , a damping shaft 63 is installed in the middle of the gear 62 , a knob 64 is installed at one end of the damping shaft 63 , and the knob 64 is located on one side of the outer end of the protective shell 61 .

[0043] When it is necessary to adjust the movement of the positioning plate 41 and the guide plate 42, the personnel can drive the damping shaft 63 and the gear 62 to rotate through the knob 64. When the gear 62 rotates, it will engage with the convex tooth 412, so that the positioning plate 41 and the guide plate 42 move. When the positioning plate 41 and the guide plate 42 need to move back, it only needs to drive the damping shaft 63 and the gear 62 to reverse through the knob 64. It is simple and convenient.

[0044] The usage process of the utility model is as follows: when the temperature sensor 2 is installed, it is necessary to first fit the copper sheet 3 at one end thereof to one side of the busbar 1, and at the same time, the guide plate 42 at the lower end of one side of the positioning plate 41 will fit to the other side of the busbar 1. At this time, the copper sheet 3 and the guide plate 42 will fit to the two sides of the busbar 1, and when the connecting hole 11, the through groove 31 and the guide groove 43 are aligned, the screw 51 can be movably penetrated through the connecting hole 11, the through groove 31 and the guide groove 43. After the screw 51 is penetrated, one end thereof will be pressed and limited by the screw head and the gasket 52 to the copper sheet 3, and the other end of the screw 51 will be limited by the nut 53, so that the temperature sensor 2 uses the copper sheet 3 to monitor the temperature of the busbar 1 in real time. At the same time, the positioning plate 41 and the guide plate 42 can support the temperature sensor 2 and enhance the fixing effect of the temperature sensor 2.

[0045] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A transformer busbar monitoring device, comprising a busbar (1) and a temperature sensor (2), wherein the temperature sensor (2) is arranged at one end of the busbar (1), and is characterized in that: One end of the temperature sensor (2) is connected to a copper sheet (3), a positioning component (4) is installed on one side of the outer end of the temperature sensor (2), a fixing component (5) is connected between the copper sheet (3) and the busbar (1), and adjustment components (6) are symmetrically installed on both sides of the temperature sensor (2); The positioning assembly (4) comprises a positioning plate (41) and a guide plate (42) installed at the lower end of one side of the positioning plate (41), and a guide groove (43) is provided in the middle of the lower end of the guide plate (42).

2. A transformer busbar monitoring device according to claim 1, characterized in that: A connection hole (11) is provided in the middle of one end of the busbar (1).

3. A transformer busbar monitoring device according to claim 1, characterized in that: Limiting slide blocks (21) are symmetrically mounted on both sides of the temperature sensor (2), and the limiting slide blocks (21) are located above the adjustment component (6).

4. A transformer busbar monitoring device according to claim 2, characterized in that: A through slot (31) is provided in the middle of the lower end of the copper sheet (3), and the connection hole (11), the through slot (31) and the guide slot (43) have the same hole diameter.

5. A transformer busbar monitoring device according to claim 1, characterized in that: The inner wall of the positioning plate (41) is provided with a limiting sliding groove (411), and the lower end of the positioning plate (41) is provided with a protruding tooth (412).

6. A transformer busbar monitoring device according to claim 1, characterized in that: The fixing assembly (5) comprises a screw (51) and a washer (52) arranged at one end of the screw (51), and a nut (53) is threadedly connected to the outer end of the screw (51).

7. A transformer busbar monitoring device according to claim 1, characterized in that: The adjustment assembly (6) comprises a protective shell (61) and a gear (62) installed in the middle of the protective shell (61); a damping shaft (63) is installed in the middle of the gear (62); a knob (64) is installed at one end of the damping shaft (63); and the knob (64) is located on one side of the outer end of the protective shell (61).