Transformer state real-time monitoring device

Abstract

The invention discloses a transformer state real-time monitoring device, and relates to the field of transformer monitoring, the transformer state real-time monitoring device comprises a monitoring box, a heat dissipation module and a connector lug, the heat dissipation module is installed above the monitoring box and dissipates heat in the monitoring box, and the connector lug is fixed on the rear side of the monitoring box and is connected with a transformer monitoring circuit. A negative pressure cavity is formed in the lower portion of the monitoring box, the lower portion of the negative pressure cavity is designed to be of an opening-shaped structure, a movable plug is arranged in the negative pressure cavity, and the radial outer surface of the movable plug is attached to the inner wall of the negative pressure cavity. According to the transformer state real-time monitoring device, the monitoring box and the transformer are connected through the connector lug, the connector lug can be protected through movement of the protective cover after connection, the connector lug is covered with the telescopic pipe, rain and dust are prevented, connector damage is avoided, and meanwhile the telescopic design does not affect follow-up mounting and dismounting of wiring harnesses.

Description

Technical Field

[0001] The invention relates to the technical field of transformer monitoring, and in particular to a real-time monitoring device for transformer status. Background Art

[0002] In order to facilitate the monitoring of the operating loss of the transformer, as well as the online calculation of the distributed capacitance of the distribution network to the ground and the research on the automatic tracking and compensation technology of the arc suppression coil, the status of the transformer can be monitored in real time. During monitoring, the monitoring device is installed on the outside of the transformer and connected to the corresponding monitoring line of the transformer to monitor the relevant data information.

[0003] Prior art 1 (application number CN201811293884.9, Chinese patent published on January 15, 2019) A cabinet portable dual-purpose transformer intelligent mechanical component monitoring device, including a portable monitoring chassis, a microprocessor module and an intelligent mechanical component hardware circuit module, the portable monitoring chassis has a groove on the lower side, and a circuit board is installed inside the groove, and a microprocessor module and a wireless transmission module are installed on one side of the circuit board. The present invention is a cabinet portable dual-purpose transformer intelligent mechanical component monitoring device, which has a novel design, retains the functions of the original cabinet monitoring unit, and can be used as a portable chassis for on-site monitoring. A microprocessor and a microdisplay are designed inside the monitoring unit, which can directly analyze and process the current monitoring data on site, display the current transformer operating status, and facilitate timely decision-making. The device has added a wireless transmission module, which can send on-site monitoring information to the background database in time for storage and comparative analysis; Prior art 2 (application number CN202010351901.0, Chinese patent published on August 4, 2020) An intelligent monitoring device and monitoring method for power transformers for distribution network substations, including a body, a control mechanism is provided on the upper wall of the body, the control mechanism includes a water receiving trough, a placement trough is provided on the lower wall of the water receiving trough, and two conductive sheets are fixedly connected to the inner wall of the placement trough, and two placement cavities are provided on the upper wall of the body, and electromagnetic sheets are fixedly connected to the inner walls of the two placement cavities, and the opposite side walls of the two electromagnetic sheets are elastically connected to permanent magnetic plates through tension springs, and the two electromagnetic sheets are electrically connected to the two conductive sheets; a heat dissipation mechanism is provided inside the body, and the heat dissipation mechanism includes a fan fixedly connected to the inner wall of the body, and heat dissipation ports are provided on both side walls of the body, and baffles are rotatably connected to both side walls of the body through hinges. The present invention can dissipate heat and cool the device to ensure normal operation of the device, and can also prevent rainwater from entering the interior of the device to ensure that internal electrical components are not damaged.

[0004] When the current monitoring device is installed and used, it is necessary to use destructive installation methods such as drilling, which is likely to cause certain damage to the transformer and increase the corresponding installation difficulty. In addition, the monitoring device is installed outside with the transformer and is easily affected by rain outdoors. The monitoring connection of the monitoring device is easily damaged, resulting in poor contact or damage, affecting the subsequent real-time monitoring effect. Summary of the invention

[0005] The object of the present invention is to provide a real-time monitoring device for transformer status, so as to solve the problem proposed in the above background technology that the current monitoring device, when installed and used, sometimes needs to be installed in a destructive manner such as drilling, which is easy to cause certain damage to the transformer and increase the corresponding installation difficulty. In addition, the monitoring device is installed outside with the transformer and is easily affected by rain outdoors, and the monitoring connection of the monitoring device is easily damaged, resulting in poor contact or damage.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a real-time monitoring device for transformer status, comprising a monitoring box, a heat dissipation module and a terminal head, wherein the heat dissipation module is installed above the monitoring box to dissipate the heat in the monitoring box, and a terminal head is fixed to the rear side of the monitoring box to be connected to the transformer monitoring circuit, a negative pressure chamber is opened at the bottom of the monitoring box, and the bottom of the negative pressure chamber is designed as an open structure, and a movable plug is arranged inside the negative pressure chamber, the radial outer surface of the movable plug is fitted with the inner wall of the negative pressure chamber, and an up-and-down sliding structure is formed between the movable plug and the negative pressure chamber, and a fixed rod is fixed above the movable plug, and a moving control mechanism is arranged on the outer side of the fixed rod to control the movable plug. The vertical movement of the fixed rod is controlled, an exhaust port is arranged above the negative pressure chamber, and the exhaust port is designed in an open shape, and the gas above the negative pressure chamber is discharged when the movable plug moves, and the exhaust port is located above the movable plug, a protective cover is arranged on the outside of the terminal head, and the inner end of the protective cover is fixedly connected with a telescopic tube, and the inner end of the telescopic tube is fixedly connected to the monitoring box, the protective cover is annularly sleeved on the outside of the terminal head, and the outer side of the terminal head is protected by the movement of the protective cover, an elastic airbag is fixed on the inner side of the protective cover, and the elastic airbag expands to close the protective cover, the outer side of the elastic airbag is connected with a regulating mechanism, and the outer side of the protective cover is connected with a telescopic control mechanism to control the movement of the protective cover.

[0007] To further optimize the technical solution, two groups of negative pressure chambers are provided below the monitoring box, and a sealing sticker is fixed to the bottom of the monitoring box, and the sealing sticker is a rubber insulation board.

[0008] To further optimize the technical solution, the mobile control mechanism includes a drive plate and a self-locking adjustment mechanism; The driving plate is fixed on the inner side of the fixing rod, and an up-and-down sliding structure is formed between the driving plate and the monitoring box; The self-locking adjustment mechanism is connected to the driving plate to control the movement and locking of the driving plate.

[0009] To further optimize the technical solution, the self-locking adjustment mechanism includes a control rod, a bevel gear and a drive rod; The control rod is rotatably mounted inside the monitoring box, and the control rod passes through the driving plate and forms a threaded connection between the driving plates; a bevel gear, fixed to the surface of the control rod; The driving rod and the control rod are arranged perpendicularly to each other, and the driving rod and the control rod are meshed with each other through the bevel gear, and the driving rod and the monitoring box are rotationally connected, and the front end of the driving rod is located at the front side of the monitoring box.

[0010] To further optimize the technical solution, the telescopic control mechanism connects the plate and the guide rod; A connecting plate, fixed on the inner side of the protective cover, controls the movement of the protective cover; The guide rod is fixed on the rear side of the monitoring box, and the guide rod passes through the connecting plates to form a front-to-back sliding connection.

[0011] To further optimize the technical solution, an auxiliary positioning mechanism is provided on the front side of the connecting plate to position the connecting plate so that the telescopic tube remains in a retracted state.

[0012] To further optimize the technical solution, the auxiliary positioning mechanism includes a magnetic block and an adsorption magnet; The magnetic block is fixed on the rear side of the connecting plate and moves synchronously with the connecting plate; The adsorption magnet is fixed on the rear side of the monitoring box, and the adsorption magnet and the magnetic block are arranged opposite to each other and attract each other.

[0013] To further optimize the technical solution, the regulating mechanism includes a first connecting tube, a connecting airbag and an extrusion plate; A first connecting pipe is installed on the outside of the elastic airbag to provide a gas delivery channel for the elastic airbag; The connecting airbag is arranged inside the monitoring box, and the connecting airbag is connected with the elastic airbag through the first connecting pipe; The extrusion plate is arranged below the connecting airbag, and an up-and-down sliding structure is formed between the extrusion plate and the monitoring box, and the extrusion plate is fixedly connected to the upper end of the fixing rod.

[0014] To further optimize the technical solution, a limiting airbag is arranged inside the guide rod, and a second connecting tube is connected to the outer side of the limiting airbag, and the front end of the second connecting tube is connected to the connecting airbag to supply air to the limiting airbag, so that the limiting airbag and the connecting plate are connected to limit it.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The monitoring box is installed on the supporting plane of the transformer by adsorption through the negative pressure chamber, so there is no need to punch holes for fixing, and the equipment is not damaged. The installation is flexible and convenient. The sealing sticker can improve the tightness of the fit and the heat insulation effect, thereby reducing the transfer of heat from the transformer to the monitoring box. (2) The rotation of the driving rod can drive the control rod to rotate, so that the control rod drives the driving plate to move through the threaded connection between the control rod and the driving plate, and the threaded connection effect can also provide self-locking properties, so that the position of the adjusted driving plate can remain stable; (3) The monitoring box and the transformer are connected through the wiring head. After the connection, the wiring head can be protected by moving the protective cover. The wiring head is covered with a telescopic tube to prevent rain and dust and avoid damage to the connector. At the same time, the telescopic design does not affect the subsequent installation and removal of the wiring harness. (4) The elastic airbag can be used to seal the inside of the protective cover, thereby sealing the outside of the wiring head to prevent rainwater from entering and contaminating the wiring head, thereby improving the dust and water proof effect of the wiring head. At the same time, the limiting airbag can also provide a positioning effect for the connecting plate, so that the position of the protective cover can remain stable; (5) The connecting airbag is squeezed by the movement of the squeezing plate, thereby controlling the volume expansion of the elastic airbag, and the fixing rod can also move synchronously while the squeezing plate moves, so that the negative pressure chamber can synchronously complete the adsorption installation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 It is a bottom view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting plate of the present invention; Figure 5 This is a schematic diagram of the main cross-sectional structure of the monitoring box of the present invention; Figure 6 It is a schematic diagram of the side cross-section structure of the negative pressure chamber of the present invention; Figure 7 It is a schematic diagram of the side section structure of the control rod of the present invention; Figure 8 It is a schematic diagram of the side section structure of the guide rod of the present invention; Fig. 9 It is a schematic diagram of the top view of the structure of the connecting airbag of the present invention.

[0017] In the figure: 1. Monitoring box; 2. Heat dissipation module; 3. Terminal block; 4. Sealing sticker; 5. Negative pressure chamber; 6. Movable plug; 7. Fixing rod; 8. Exhaust port; 9. Driving plate; 10. Control rod; 11. Bevel gear; 12. Driving rod; 13. Protective cover; 14. Telescopic tube; 15. Connecting plate; 16. Guide rod; 17. Magnetic block; 18. Adsorption magnet; 19. Elastic airbag; 20. First connecting tube; 21. Connecting airbag; 22. Extrusion plate; 23. Limiting airbag; 24. Second connecting tube. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 9 The present invention provides the following technical solutions: a real-time monitoring device for transformer status, comprising a monitoring box 1, a heat dissipation module 2 and a wiring head 3, wherein the heat dissipation module 2 is installed above the monitoring box 1 to dissipate the heat in the monitoring box 1, and the wiring head 3 is fixed on the rear side of the monitoring box 1 to be connected to the transformer monitoring circuit; Embodiment 1:

[0020] The invention provides a technical solution, which discloses that a negative pressure chamber 5 is opened at the bottom of the monitoring box 1, and the bottom of the negative pressure chamber 5 is designed in an open structure, and a movable plug 6 is arranged inside the negative pressure chamber 5, and the radial outer surface of the movable plug 6 is arranged in contact with the inner wall of the negative pressure chamber 5, and an up-and-down sliding structure is formed between the movable plug 6 and the negative pressure chamber 5, and a fixed rod 7 is fixed above the movable plug 6, and a movement control mechanism is arranged on the outer side of the fixed rod 7 to control the vertical movement of the fixed rod 7, and an exhaust port 8 is arranged above the negative pressure chamber 5, and the exhaust port 8 is designed in an open shape, and when the movable plug 6 moves, the upper part of the negative pressure chamber 5 is opened. The gas is discharged, the exhaust port 8 is located above the movable plug 6, a protective cover 13 is provided on the outside of the terminal head 3, and the inner end of the protective cover 13 is fixedly connected with a telescopic tube 14, and the inner end of the telescopic tube 14 is fixedly connected to the monitoring box 1, the protective cover 13 is annularly sleeved on the outside of the terminal head 3, and the outer side of the terminal head 3 is protected by the movement of the protective cover 13, an elastic airbag 19 is fixed on the inside of the protective cover 13, and the elastic airbag 19 expands to close the protective cover 13, the outer side of the elastic airbag 19 is connected with a regulating mechanism, and the outer side of the protective cover 13 is connected with a telescopic control mechanism to control the movement of the protective cover 13.

[0021] When in use, the monitoring box 1 can be moved to the position of the transformer, and the corresponding monitoring line can be connected to the monitoring box 1 through the terminal head 3. Then, the monitoring box 1 can be placed on the flat support surface of the transformer, and the protective cover 13 can be controlled to move so that it pulls the telescopic tube 14 to move, and the terminal head 3 is covered to provide protection for it. Then, the movable plug 6 is controlled to move in the negative pressure chamber 5, and at the same time, the gas above the movable plug 6 is discharged through the exhaust port 8, so that a negative pressure adsorption force is formed in the negative pressure chamber 5, and the monitoring box 1 is adsorbed on the support surface of the transformer, thereby completing the installation of the monitoring box 1. Embodiment 2:

[0022] On the basis of Example 1, it is disclosed that two groups of negative pressure chambers 5 are arranged below the monitoring box 1, and a sealing patch 4 is fixed to the bottom of the monitoring box 1, and the sealing patch 4 is a rubber insulation board, the movement control mechanism includes a driving plate 9 and a self-locking adjustment mechanism, the driving plate 9 is fixed on the inner side of the fixed rod 7, and an up and down sliding structure is formed between the driving plate 9 and the monitoring box 1, the self-locking adjustment mechanism is connected to the driving plate 9, and controls the movement and locking of the driving plate 9, the self-locking adjustment mechanism includes a control rod 10, a bevel gear 11 and a driving rod 12, the control rod 10 is rotatably installed inside the monitoring box 1, and the control rod 10 passes through the driving plate 9 and forms a threaded connection between the driving plate 9, the bevel gear 11 is fixed on the surface of the control rod 10, the driving rod 12 and the control rod 10 are arranged perpendicular to each other, and the driving rod 12 is meshed with the control rod 10 through the bevel gear 11, and a rotational connection is formed between the driving rod 12 and the monitoring box 1, and the front end of the driving rod 12 is located on the front side of the monitoring box 1.

[0023] When controlling the movable plug 6 to move, the driving rod 12 can be rotated so that the driving rod 12 drives the control rod 10 to rotate through the bevel gear 11. When the control rod 10 rotates, the driving plate 9 is driven to move through the threaded connection between the driving plate 9, so that the driving plate 9 drives the movable plug 6 to move through the fixed rod 7, thereby controlling the negative pressure in the negative pressure chamber 5 and realizing the installation and disassembly of the monitoring box 1. Embodiment three:

[0024] On the basis of the first embodiment, a telescopic control mechanism connecting plate 15 and a guide rod 16 are disclosed. The connecting plate 15 is fixed on the inner side of the protective cover 13 to control the movement of the protective cover 13. The guide rod 16 is fixed on the rear side of the monitoring box 1, and the guide rod 16 runs through the connecting plate 15 and the connecting plate 15 to form a front-to-back sliding connection. An auxiliary positioning mechanism is provided on the front side of the connecting plate 15 to position the connecting plate 15 so that the telescopic tube 14 remains in a retracted state. The auxiliary positioning mechanism includes a magnetic block 17 and an adsorption magnet 18. The magnetic block 17 is fixed on the rear side of the connecting plate 15 to keep synchronous movement with the connecting plate 15. The adsorption magnet 18 is fixed on the rear side of the monitoring box 1, and the adsorption magnet 18 and the magnetic block 17 are arranged relative to each other and attract each other. The regulating mechanism includes the first A connecting tube 20, a connecting airbag 21 and an extrusion plate 22, the first connecting tube 20 is installed on the outside of the elastic airbag 19 to provide a gas delivery channel for the elastic airbag 19, the connecting airbag 21 is arranged inside the monitoring box 1, and the connecting airbag 21 is connected to the elastic airbag 19 through the first connecting tube 20, the extrusion plate 22 is arranged below the connecting airbag 21, and an up and down sliding structure is formed between the extrusion plate 22 and the monitoring box 1, and the extrusion plate 22 and the upper end of the fixed rod 7 are fixedly connected, a limiting airbag 23 is arranged inside the guide rod 16, and the outside of the limiting airbag 23 is connected to the second connecting tube 24, the front end of the second connecting tube 24 is connected to the connecting airbag 21, to supply air to the limiting airbag 23, so that the limiting airbag 23 and the connecting plate 15 are connected to limit it.

[0025] When the protective cover 13 is controlled to move, the connecting plate 15 can be pulled. When the protective cover 13 is folded, the magnetic block 17 and the adsorption magnet 18 on the connecting plate 15 attract each other to position the connecting plate 15, so that the position of the protective cover 13 remains stable. After the protective cover 13 is pulled out, the connecting plate 15 is also located on the outside of the limiting airbag 23. At this time, when the movable plug 6 is controlled to move, the fixing rod 7 synchronously drives the extrusion plate 22 to move. The extrusion plate 22 squeezes the connecting airbag 21, so that the gas in the connecting airbag 21 enters the elastic airbag 19 through the first connecting tube 20. The volume of the elastic airbag 19 expands to close the inner side of the protective cover 13. At the same time, the connecting airbag 21 expands the volume of the limiting airbag 23 through the second connecting tube 24. The limiting airbag 23 limits the connecting plate 15 on the guide rod 16, so that its position remains stable, so that the protective cover 13 maintains good stability.

[0026] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer status real-time monitoring device, comprising a monitoring box (1), a heat dissipation module (2) and a wiring head (3), wherein the heat dissipation module (2) is installed above the monitoring box (1) to dissipate heat in the monitoring box (1), and a wiring head (3) is fixed on the rear side of the monitoring box (1) to be connected to a transformer monitoring circuit; Features: A negative pressure chamber (5) is provided at the bottom of the monitoring box (1), and the bottom of the negative pressure chamber (5) is designed in an open-shaped structure, and a movable plug (6) is provided inside the negative pressure chamber (5), the radial outer surface of the movable plug (6) is arranged to fit the inner wall of the negative pressure chamber (5), and an up-and-down sliding structure is formed between the movable plug (6) and the negative pressure chamber (5), and a fixing rod (7) is fixed above the movable plug (6), and a movement control mechanism is provided on the outer side of the fixing rod (7) to control the vertical movement of the fixing rod (7), and an exhaust port (8) is provided above the negative pressure chamber (5), and the exhaust port (8) is designed in an open-shaped design, so that when the movable plug (6) moves, the gas above the negative pressure chamber (5) is discharged, and the exhaust port (8) is provided. The opening (8) is located above the movable plug (6); a protective cover (13) is arranged on the outer side of the wiring head (3); the inner end of the protective cover (13) is fixedly connected to a telescopic tube (14); the inner end of the telescopic tube (14) is fixedly connected to the monitoring box (1); the protective cover (13) is annularly sleeved on the outer side of the wiring head (3); the outer side of the wiring head (3) is protected by the movement of the protective cover (13); an elastic airbag (19) is fixed on the inner side of the protective cover (13); the elastic airbag (19) expands to seal the protective cover (13); the outer side of the elastic airbag (19) is connected to a regulating mechanism; the outer side of the protective cover (13) is connected to a telescopic control mechanism to control the movement of the protective cover (13).

2. A transformer status real-time monitoring device according to claim 1, characterized in that: Two groups of negative pressure chambers (5) are arranged below the monitoring box (1), and a sealing sticker (4) is fixed to the bottom of the monitoring box (1), and the sealing sticker (4) is a rubber heat insulation board.

3. A transformer status real-time monitoring device according to claim 1 or 2, characterized in that: The movement control mechanism comprises a drive plate (9) and a self-locking adjustment mechanism; A driving plate (9) is fixed on the inner side of the fixing rod (7), and an up-and-down sliding structure is formed between the driving plate (9) and the monitoring box (1); The self-locking adjustment mechanism is connected to the drive plate (9) and controls the movement and locking of the drive plate (9).

4. A transformer status real-time monitoring device according to claim 3, characterized in that: The self-locking adjustment mechanism comprises a control rod (10), a bevel gear (11) and a drive rod (12); A control rod (10) is rotatably mounted inside the monitoring box (1), and the control rod (10) penetrates the drive plate (9) and forms a threaded connection between the drive plates (9); A bevel gear (11) fixed on the surface of the control rod (10); The driving rod (12) and the control rod (10) are arranged perpendicular to each other, and the driving rod (12) and the control rod (10) are meshed with each other through the bevel gear (11), and a rotation connection is formed between the driving rod (12) and the monitoring box (1), and the front end of the driving rod (12) is located at the front side of the monitoring box (1).

5. A transformer status real-time monitoring device according to claim 1, characterized in that: The telescopic control mechanism connecting plate (15) and the guide rod (16); A connecting plate (15) is fixed on the inner side of the protective cover (13) to control the movement of the protective cover (13); The guide rod (16) is fixed to the rear side of the monitoring box (1), and the guide rod (16) passes through the connecting plate (15) and forms a front-to-rear sliding connection between the connecting plates (15).

6. A transformer status real-time monitoring device according to claim 5, characterized in that: An auxiliary positioning mechanism is provided on the front side of the connecting plate (15) to position the connecting plate (15) so that the telescopic tube (14) remains in a retracted state.

7. A transformer status real-time monitoring device according to claim 6, characterized in that: The auxiliary positioning mechanism comprises a magnetic block (17) and an adsorption magnet (18); A magnetic block (17) is fixed to the rear side of the connecting plate (15) and moves synchronously with the connecting plate (15); The adsorption magnet (18) is fixed on the rear side of the monitoring box (1), and the adsorption magnet (18) and the magnetic block (17) are arranged opposite to each other and attract each other.

8. A transformer status real-time monitoring device according to claim 5, characterized in that: The regulating mechanism comprises a first connecting tube (20), a connecting airbag (21) and a pressing plate (22); A first connecting pipe (20) is installed on the outside of the elastic airbag (19) to provide a gas delivery channel for the elastic airbag (19); A connecting airbag (21) is arranged inside the monitoring box (1), and the connecting airbag (21) is connected to the elastic airbag (19) via a first connecting pipe (20); The extrusion plate (22) is arranged below the connection airbag (21), and an up-and-down sliding structure is formed between the extrusion plate (22) and the monitoring box (1), and the extrusion plate (22) and the upper end of the fixing rod (7) are fixedly connected.

9. A transformer status real-time monitoring device according to claim 8, characterized in that: A limiting airbag (23) is arranged inside the guide rod (16), and a second connecting pipe (24) is connected to the outside of the limiting airbag (23). The front end of the second connecting pipe (24) is connected to the connecting airbag (21) to supply air to the limiting airbag (23), so that the limiting airbag (23) and the connecting plate (15) are connected to limit the limiting airbag.

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