Oil refilling device of power capacitor

Abstract

The utility model belongs to the technical field of capacitors, and particularly relates to an oil refilling device for a power capacitor, which comprises a frame. The upper end of the rack is fixedly connected with a tank body, an inner cavity of the tank body is movably connected with a moving plate, the lower end of the moving plate is fixedly connected with a moving rod, the lower end of the moving rod is fixedly connected with a first spring, the lower end of the first spring is fixedly connected with a force sensor, and the lower end of the force sensor is fixedly connected with a hollow column. The movable rod and the force sensor are both arranged in an inner cavity of the hollow column, and the lower end of the hollow column is fixedly connected with an inner cavity of the tank body. When the tank body is insufficient or full of insulating oil, an alarm can be given in time to remind a worker, and the problems that an oil sight glass of an existing oil recharging device is prone to being dirty and covered with dirty oil, and the liquid level in the tank body cannot be distinguished easily are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitors, in particular to an oil replenishing device for power capacitors. Background Art

[0002] A capacitor is a device that holds electric charge. It is one of the electronic components used in large quantities in electronic equipment. It is represented by the letter C. Any two conductors that are insulated from each other and very close to each other, including wires, constitute a capacitor. The capacitance of a capacitor is numerically equal to the ratio of the charge on a conductive plate to the voltage between the two plates. Its basic unit is farad. Capacitors play an important role in tuning, bypass, coupling, filtering and other circuits. They are used in the tuning circuit of transistor radios, the coupling circuit and bypass circuit of color TVs, etc.

[0003] A capacitor oiler is a device used for capacitor maintenance and servicing. It can replenish insulating oil for capacitors to ensure the normal operation of the capacitor and extend its service life. A capacitor oiler usually includes an oil cup, an oil pipe, an oil level gauge and a control system. The oil cup is used to store insulating oil, the oil pipe transports the insulating oil to the oil filling port of the capacitor, the oil level gauge is used to monitor the oil level, and the control system is responsible for controlling the switch of the oiler and the adjustment of the oil filling amount. The use of a capacitor oiler can greatly improve the maintenance efficiency of the capacitor, and can also avoid capacitor failure and damage caused by lack of oil. Therefore, in the maintenance and servicing of capacitors, the oiler is a very important device.

[0004] The oil sight glass of the existing oil replenisher is easy to get dirty, easy to be covered by dirty oil, and easy to be scratched by iron filings during pump running-in, which makes it difficult to distinguish the liquid level and produces a false liquid level. The oil outlet of the old-fashioned oil level device is easily blocked by debris or dirt in the oil. Therefore, a power capacitor oil replenishing device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides an oil replenishing device for a power capacitor.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model is a kind of oil filling device for power capacitors, comprising a frame; the upper end of the frame is fixedly connected with a tank body, the inner cavity of the tank body is movably connected with a moving plate, the lower end of the moving plate is fixedly connected with a moving rod, the lower end of the moving rod is fixedly connected with a first spring, the lower end of the first spring is fixedly connected with a force sensor, the lower end of the force sensor is fixedly connected with a hollow column, the moving rod and the force sensor are both arranged in the inner cavity of the hollow column, the lower end of the hollow column is fixedly connected with the inner cavity of the tank body, the upper end of the tank body is fixedly connected with a buzzer, the inner cavity of the tank body is provided with a conveying assembly, and the upper end of the tank body is fixedly connected with an injection assembly.

[0007] Preferably, the conveying assembly includes a suction port, which is arranged in the inner cavity of the tank body, the upper end of the suction port is fixedly connected with a conveying pipe, one end of the conveying pipe is fixedly connected with a purification box, the inner cavity of the purification box is movably connected with a filter screen, the front end of the purification box is movably connected with a pull plate through a cross slide rail, the inner cavity of the pull plate is provided with a pull rod, the surface of the pull rod is movably connected with a cross ring, one end of the cross ring is fixedly connected with a second spring, one end of the second spring is fixedly connected with a positioning frame, the lower end of the positioning frame is fixedly connected to the upper end of the purification box, one end of the purification box is fixedly connected with a connecting pipe, the lower end of the connecting pipe is fixedly connected with a conveying pump, one end of the conveying pump is fixedly connected with a telescopic injection pipe, and the lower end of the conveying pump is fixedly connected to the frame.

[0008] Preferably, the injection assembly includes an injection port, the lower end of the injection port is fixedly connected to the tank body, the inner cavity of the injection port is fixedly connected to a first groove disk, one end of the injection port close to the first groove disk is movably connected to a second groove disk, the surface of the second groove disk is provided with teeth, one end of the teeth is meshingly connected to a half gear, and the lower end of the half gear is fixedly connected to a motor.

[0009] Preferably, the housing of the motor is fixedly connected to the tank body, and the upper end of the injection port is fixedly connected with a connecting flange.

[0010] Preferably, a controller is fixedly connected to the tank body, and the force sensor and the buzzer are both electrically connected to the controller.

[0011] Preferably, a fixing block is fixedly connected to the surface of the connecting pipe, and one end of the fixing block is fixedly connected to the tank body.

[0012] Preferably, the lower end of the frame is movably connected with a universal wheel, the number of the universal wheels is four, and the upper ends of the four universal wheels are movably connected to the four corners of the lower end of the frame.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides an oil filling device for a power capacitor. By using the above structure in combination, the utility model has the following beneficial effects: when the insulating oil in the tank is insufficient or full, an alarm can be given in time to remind the staff, thereby preventing the problem that the oil sight glass of the existing oil filler is easily dirty, easily covered by dirty oil, and difficult to distinguish the liquid level in the tank.

[0015] 2. The utility model provides an oil replenishing device for a power capacitor. The above-mentioned structure is used in combination to prevent the oil outlet of the oil level meter from being easily blocked by debris or dirt in the oil, resulting in the problem that the capacitor cannot be replenished with insulating oil. The second spring and pull rod and other structures are used in combination to facilitate the disassembly and cleaning of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is an overall stereogram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the filter structure in the utility model;

[0021] Figure 5 This utility model Figure 4 The enlarged structural diagram at A in the middle;

[0022] Figure 6 It is a schematic diagram of the half gear structure in the utility model;

[0023] Figure 7 It is a schematic diagram of the structure of the moving rod in the utility model.

[0024] Legend:

[0025] 1. Frame; 2. Tank; 3. Moving plate; 4. Moving rod; 5. First spring; 6. Force sensor; 7. Hollow column; 8. Buzzer; 9. Inlet; 10. Delivery pipe; 11. Purification box; 12. Filter; 13. Pull plate; 14. Pull rod; 15. Cross ring; 16. Second spring; 17. Positioning frame; 18. Connecting pipe; 19. Delivery pump; 20. Telescopic injection pipe; 21. Injection port; 22. First groove disk; 23. Second groove disk; 24. Half gear; 25. Motor; 26. Connecting flange; 27. Fixing block; 28. Universal wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Specific examples are given below.

[0028] See also Figure 1 - Figure 7 The utility model provides an oil replenishing device for a power capacitor, comprising a frame 1; a tank body 2 is fixedly connected to the upper end of the frame 1, a moving plate 3 is movably connected to the inner cavity of the tank body 2, a moving rod 4 is fixedly connected to the lower end of the moving plate 3, a first spring 5 is fixedly connected to the lower end of the moving rod 4, a force sensor 6 is fixedly connected to the lower end of the first spring 5, a hollow column 7 is fixedly connected to the lower end of the force sensor 6, the moving rod 4 and the force sensor 6 are both arranged in the inner cavity of the hollow column 7, the lower end of the hollow column 7 is fixedly connected to the inner cavity of the tank body 2, a buzzer 8 is fixedly connected to the upper end of the tank body 2, a conveying assembly is arranged in the inner cavity of the tank body 2, an injection assembly is fixedly connected to the upper end of the tank body 2, a controller is fixedly connected to the tank body 2, and the force sensor 6 and the buzzer 8 are electrically connected to the controller When the insulating oil needs to be stored or outputted from the tank body 2, the weight of the injected insulating oil is used to press down the movable plate 3, and then the movable rod 4 carried by the movable plate 3 is moved. The movable rod 4 compresses the first spring 5, and the pressure exerted on the first spring 5 is transmitted to the force sensor 6. When the internal weight reaches a predetermined value, the force sensor 6 generates an electrical signal and transmits it to the controller, which controls the controller to drive the buzzer 8 to alarm so as to quickly remind the staff. By using the above-mentioned structure in combination, the utility model has the following beneficial effects. When the insulating oil inside the tank body 2 is insufficient or full, the alarm can be sounded in time to remind the staff, thereby preventing the problem that the oil sight glass of the existing oil replenisher is easy to get dirty, easy to be covered by dirty oil, and difficult to distinguish the liquid level inside the tank body 2.

[0029] Further, such as Figure 3 and Figure 4 As shown, the conveying assembly includes a suction port 9, which is arranged in the inner cavity of the tank body 2, and the upper end of the suction port 9 is fixedly connected with a conveying pipe 10, one end of the conveying pipe 10 is fixedly connected with a purification box 11, and the inner cavity of the purification box 11 is movably connected with a filter screen 12, and the front end of the purification box 11 is movably connected with a pull plate 13 through a cross slide rail, and the inner cavity of the pull plate 13 is provided with a pull rod 14, and the surface of the pull rod 14 is movably connected with a cross ring 15, one end of the cross ring 15 is fixedly connected with a second spring 16, one end of the second spring 16 is fixedly connected with a positioning frame 17, and the lower end of the positioning frame 17 is fixedly connected to the upper end of the purification box 11, one end of the purification box 11 is fixedly connected with a connecting pipe 18, and the lower end of the connecting pipe 18 is fixedly connected with a conveying pump 19, one end of the conveying pump 19 is fixedly connected with a telescopic injection pipe 20, and the lower end of the conveying pump 19 is fixedly connected to the frame 1. When it is necessary to inject insulating oil into the capacitor, start The delivery pump 19 drives the suction port 9 to deliver the insulating oil to the inside of the delivery pipe 10, and the delivery pipe 10 delivers it to the inside of the purification box 11. The filter 12 inside the purification box 11 is used to filter the impurities inside the insulating oil, and then the purification box 11 delivers it to the inside of the connecting pipe 18, and then the connecting pipe 18 delivers it to the inside of the telescopic injection pipe 20, and then the telescopic injection pipe 20 is connected to the capacitor, and the insulating oil is added to the inside of the capacitor by the telescopic injection pipe 20. When it is necessary to clean the filter 12, pull the rotating pull rod 14, and disassemble and clean the filter 12 by moving the pull plate 13. The use of the above-mentioned structure can prevent the oil outlet of the oil level gauge from being easily blocked by debris or dirt in the oil, resulting in the problem that the capacitor cannot be replenished with insulating oil. The use of the second spring 16 and the pull rod 14 and other structures can achieve the effect of facilitating the disassembly and cleaning of the filter.

[0030] Further, such as Figure 6 As shown, the injection assembly includes an injection port 21, the lower end of the injection port 21 is fixedly connected to the tank body 2, the inner cavity of the injection port 21 is fixedly connected with a first groove disk 22, and the end of the injection port 21 close to the first groove disk 22 is movably connected with a second groove disk 23, the surface of the second groove disk 23 is provided with teeth, one end of the teeth is meshingly connected with a half gear 24, and the lower end of the half gear 24 is fixedly connected with a motor 25. When it is necessary to inject insulating oil into the interior of the tank body 2, the motor 25 is started to drive the half gear 24 to drive the second groove disk 23 to rotate, so that the through holes on the surface of the second groove disk 23 overlap with the through holes of the first groove disk 22 to inject insulating oil into the interior of the tank body 2. After the injection is completed, the motor 25 is started again to drive the half gear 24 to start the second groove disk 23 to rotate to seal the through holes on the surface of the first groove disk 22. Through the coordinated use of the above structure, the effect of facilitating rapid sealing after the insulating oil is injected into the tank body 2 is achieved.

[0031] Further, such as Figure 2 As shown, the housing of the motor 25 is fixedly connected to the tank body 2, and the upper end of the injection port 21 is fixedly connected with a connecting flange 26. By using the injection port 21 and the connecting flange 26 in coordination, the effect of quickly connecting the oil filling port to the device is achieved when the device is installed.

[0032] Further, such as Figure 3 As shown, a fixing block 27 is fixedly connected to the surface of the connecting pipe 18, and one end of the fixing block 27 is fixedly connected to the tank body 2. The fixing block 27 is used to reinforce the connecting pipe 18 and the tank body 2, thereby preventing the connecting pipe 18 from moving when the equipment is in use.

[0033] Further, such as Figure 2 As shown, the lower end of the frame 1 is movably connected with a universal wheel 28, and the number of the universal wheels 28 is four. The upper ends of the four universal wheels 28 are movably connected to the four corners of the lower end of the frame 1. When the equipment needs to be moved, the unique structural device of the universal wheel 28 is utilized, thereby achieving the effect of facilitating the rapid movement of the equipment when the equipment is in use.

[0034] Working principle: when it is necessary to store or output insulating oil in the tank body 2, the weight of the injected insulating oil is used to press down the movable plate 3, and then the movable rod 4 brought by the movable plate 3 is moved, and the movable rod 4 compresses the first spring 5, and the pressure exerted on the first spring 5 is transmitted to the sensor 6. When the internal weight reaches a predetermined value, the force sensor 6 generates an electrical signal and transmits it to the controller, which controls it to drive the buzzer 8 to alarm so as to quickly remind the staff. By using the above structure in combination, the utility model has the following beneficial effects: when the insulating oil in the tank body 2 is insufficient or full, an alarm can be given in time to remind the staff, which prevents the existing oil replenisher oil sight glass from being easily dirty and easy to The problem of being covered by dirty oil and being difficult to distinguish the liquid level inside the tank body 2, when it is necessary to inject insulating oil into the capacitor, start the delivery pump 19 to drive the suction port 9 to deliver the insulating oil to the inside of the delivery pipe 10, and the delivery pipe 10 delivers it to the inside of the purification box 11, and the filter 12 inside the purification box 11 is used to filter the impurities inside the insulating oil, and then it is delivered to the inside of the connecting pipe 18 by the purification box 11, and is delivered to the inside of the telescopic injection pipe 20 by the connecting pipe 18, and then the telescopic injection pipe 20 is connected to the capacitor, and the inside of the capacitor is filled with insulating oil by the telescopic injection pipe 20. When it is necessary to clean the filter 12, pull the rotating pull rod 14, and move the pull plate 1 3. The filter screen 12 is disassembled and cleaned. The above structure is used in combination to prevent the oil outlet of the oil level gauge from being easily blocked by debris or dirt in the oil, which makes it impossible to add insulating oil to the capacitor. The second spring 16 and the pull rod 14 are used in combination to facilitate the disassembly and cleaning of the filter screen. When it is necessary to inject insulating oil into the tank body 2, the motor 25 is started to drive the half gear 24 to drive the second groove plate 23 to rotate, so that the through holes on the surface of the second groove plate 23 overlap with the through holes of the first groove plate 22 to inject insulating oil into the tank body 2. After the injection is completed, the motor 25 is started again to drive the half gear 24 to start the second groove plate 23. The grooved plate 23 rotates to seal the through hole on the surface of the first grooved plate 22. Through the coordinated use of the above-mentioned structure, the effect of rapid sealing after the tank body 2 is injected with insulating oil is achieved. Through the coordinated use of the injection port 21 and the connecting flange 26, the effect of rapid connection between the oil filling port and the device is achieved when the device is installed. The fixing block 27 is used to reinforce the connection pipe 18 and the tank body 2, thereby preventing the connection pipe 18 from moving when the device is in use. When the device needs to be moved, the unique structural device of the universal wheel 28 is used to achieve the effect of rapid movement of the device when the device is in use.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A device for replenishing oil of a power capacitor, comprising a frame (1); characterized in that: The upper end of the frame (1) is fixedly connected to a tank body (2), the inner cavity of the tank body (2) is movably connected to a moving plate (3), the lower end of the moving plate (3) is fixedly connected to a moving rod (4), the lower end of the moving rod (4) is fixedly connected to a first spring (5), the lower end of the first spring (5) is fixedly connected to a force sensor (6), the lower end of the force sensor (6) is fixedly connected to a hollow column (7), the moving rod (4) and the force sensor (6) are both arranged in the inner cavity of the hollow column (7), the lower end of the hollow column (7) is fixedly connected to the inner cavity of the tank body (2), the upper end of the tank body (2) is fixedly connected to a buzzer (8), the inner cavity of the tank body (2) is provided with a conveying assembly, and the upper end of the tank body (2) is fixedly connected to an injection assembly.

2. The oil replenishing device for a power capacitor according to claim 1, characterized in that: The conveying assembly comprises a suction port (9), wherein the suction port (9) is arranged in the inner cavity of the tank body (2), the upper end of the suction port (9) is fixedly connected to a conveying pipe (10), one end of the conveying pipe (10) is fixedly connected to a purification box (11), the inner cavity of the purification box (11) is movably connected to a filter screen (12), the front end of the purification box (11) is movably connected to a pull plate (13) via a cross slide rail, the inner cavity of the pull plate (13) is provided with a pull rod (14), and the surface of the pull rod (14) is movably connected to a cross ring (15) ), one end of the cross ring (15) is fixedly connected to a second spring (16), one end of the second spring (16) is fixedly connected to a positioning frame (17), the lower end of the positioning frame (17) is fixedly connected to the upper end of the purification box (11), one end of the purification box (11) is fixedly connected to a connecting pipe (18), the lower end of the connecting pipe (18) is fixedly connected to a delivery pump (19), one end of the delivery pump (19) is fixedly connected to a telescopic injection pipe (20), and the lower end of the delivery pump (19) is fixedly connected to the frame (1).

3. The oil replenishing device for a power capacitor according to claim 2, characterized in that: The injection assembly comprises an injection port (21), the lower end of the injection port (21) is fixedly connected to the tank body (2), the inner cavity of the injection port (21) is fixedly connected to a first groove disk (22), one end of the injection port (21) close to the first groove disk (22) is movably connected to a second groove disk (23), a surface of the second groove disk (23) is provided with teeth, one end of the teeth is meshingly connected to a half gear (24), and the lower end of the half gear (24) is fixedly connected to a motor (25).

4. The oil replenishing device for a power capacitor according to claim 3, characterized in that: The housing of the motor (25) is fixedly connected to the tank body (2), and the upper end of the injection port (21) is fixedly connected to a connecting flange (26).

5. The oil replenishing device for a power capacitor according to claim 1, characterized in that: A controller is fixedly connected to the tank body (2), and the force sensor (6) and the buzzer (8) are both electrically connected to the controller.

6. The oil replenishing device for a power capacitor according to claim 2, characterized in that: A fixing block (27) is fixedly connected to the surface of the connecting pipe (18), and one end of the fixing block (27) is fixedly connected to the tank body (2).

7. The oil replenishing device for a power capacitor according to claim 1, characterized in that: The lower end of the frame (1) is movably connected to a universal wheel (28), the number of the universal wheels (28) is four, and the upper ends of the four universal wheels (28) are movably connected to the four corners of the lower end of the frame (1).

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