Explosion-proof capacitor cover plate fastening device

Abstract

The utility model discloses an explosion-proof capacitor cover plate fastening device, which comprises a capacitor, the top surface of the capacitor is movably connected with a cover plate, the side surface of the cover plate is fixedly connected with a fixed plate, the outer surface of the fixed plate is provided with a fixed protection mechanism, and the inside of the side surface of the fixed protection mechanism is provided with a heat dissipation unit. According to the utility model, the protective cover is fixed in the case through the mounting plate and is positioned on the outer surface of the fixed capacitor, so that the capacitor can be prevented from being damaged due to collision and influencing the normal operation of the capacitor, and the heat dissipation effect on the capacitor can be enhanced by fixing the heat dissipation unit on the side surface of the fixed protective mechanism and fixing the heat dissipation unit through bolts; the service life of the capacitor is prolonged, the movable baffle is taken out from the interior of the buckle, the fixing plate on the side face of the cover plate is clamped into the interior of the back plate, the movable baffle is inserted into the interior of the buckle again, the movable baffle is fixed, and it can be guaranteed that the cover plate cannot shake through cooperation of the movable baffle and the back plate.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof capacitor technology, specifically to an explosion-proof capacitor cover fastening device. Background Technology

[0002] Explosion-proof capacitor covers are core components for the safe operation of capacitors. Their functions include safety protection, structural support, and process optimization. When the internal pressure of the capacitor is abnormal, the cover will break through the explosion-proof sheet or deform the aluminum cover to move the conductive rod, cut off the electrode connection, and prevent explosion.

[0003] A search revealed that patent CN202495344U discloses a capacitor explosion-proof cover assembly. This assembly uses an explosion-proof wire structure within the explosion-proof device. If gas is generated inside the capacitor during use, the gas will push the capacitor's top cover upwards, pulling on the explosion-proof wire. If the wire is pulled to a certain extent, it will break, causing the capacitor to fail.

[0004] The aforementioned patent describes a design where the explosion-proof wire breaks when gas exceeding the capacitor's capacity is generated inside, causing the capacitor to fail and preventing an explosion. However, the explosion-proof cover of this device is directly connected to the capacitor, making it inconvenient to inspect and replace, and it does not provide sufficient protection for the capacitor, which may fail due to impact. Therefore, we provide an explosion-proof capacitor cover fastening device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a fastening device for explosion-proof capacitor cover plates to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an explosion-proof capacitor cover fastening device, including a capacitor, a cover plate movably connected to the top surface of the capacitor, a fixing plate fixedly connected to the side of the cover plate, a fixing protection mechanism provided on the outer surface of the fixing plate, and a heat dissipation unit provided inside the side of the fixing protection mechanism.

[0007] The fixing protection mechanism includes a pressure plate, which is movably connected to the outer surface of the fixing plate. A back plate is fixedly connected to one side of the pressure plate, and a buckle is fixedly connected to the other side of the pressure plate.

[0008] The buckle has a movable baffle that slides inside, and one end of the movable baffle is fixed to the inside of the top surface of the pressure plate by bolts.

[0009] A further improvement of this utility model is that: a threaded rotating rod is internally threaded to one end of the top surface of the pressure plate, a protective cover is rotatably connected to the bottom end of the outer surface of the threaded rotating rod, and an installation plate is fixedly connected to the side of the protective cover.

[0010] A further improvement of this utility model is that: a sliding rod is fixedly connected to one end of the top surface of the protective cover, one end of the sliding rod is slidably connected to the inside of one side end of the pressure plate, there are two sliding rods, and the other sliding rod is fixedly connected to the other end of the top surface of the protective cover.

[0011] A further improvement of this utility model is that: a limiting ring is fixedly connected to the bottom surface of the cover plate, a sealing gasket is movably connected to the side of the limiting ring, the limiting ring is movably connected to the top of the inside of the capacitor, and the sealing gasket is tightly attached to the inner side of the capacitor.

[0012] A further improvement of the present invention is that the heat dissipation unit includes an air outlet, the air outlet is movably connected to the inside of the side of the protective cover, an air guide chamber is fixedly connected to the side of the air outlet, the air guide chamber is fixedly connected to the side of the protective cover by bolts, and a diversion pipe is fixedly connected to the input end of the air guide chamber.

[0013] A further improvement of the present invention is that: the input end of the diversion pipe is fixedly connected to the main air outlet pipe, the side of the main air outlet pipe is fixedly connected to the air guide plate, the side of the air guide plate is fixedly connected to the outer frame, and the inside of the outer frame is fixedly connected to the fixing frame.

[0014] A further improvement of this utility model is that: a motor is fixedly connected inside the fixed frame, a fan is fixedly connected to the output end of the motor, and the fan is movably connected inside the outer frame.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a fastening device for an explosion-proof capacitor cover, which involves removing the movable baffle from inside the buckle, inserting the fixing plate on the side of the cover into the back plate, reinserting the movable baffle into the buckle, and fixing the movable baffle. The cooperation between the movable baffle and the back plate can ensure that the cover will not shake.

[0017] Rotating the threaded rod causes the pressure plate connected to it to slide down the slide bar. As the pressure plate presses down, the cover plate inserts the limiting ring into the top surface of the capacitor, and a certain degree of sealing effect is achieved through the sealing gasket.

[0018] After the cover plate is inspected, it needs to be replaced. The threaded rod can be rotated in the opposite direction to make the pressure plate slide up along the slide rod, which will drive the limit ring and sealing gasket out of the inside of the capacitor. The movable baffle can also be removed from the inside of the buckle. Replace the original cover plate inside the pressure plate with the intact cover plate and install it on the top surface of the capacitor.

[0019] If the capacitor needs to be replaced, the threaded rod can be rotated in the opposite direction to its limit, causing the pressure plate to disengage from the slide rod. At this point, the pressure plate can be rotated away from the opening end of the protective cover, and the capacitor can be disassembled and replaced through the side opening of the protective cover. Then, the pressure plate can be reinstalled on the outer surface of the slide rod to restore the normal operation of the device.

[0020] 2. This utility model provides an explosion-proof capacitor cover fastening device, which fixes the outer frame in a suitable position, inserts the air outlet into the side inner opening of the protective cover, and uses bolts to fix the air guide chamber to ensure that the diversion pipe and the main air outlet are in a connected state.

[0021] When the motor is turned on, it drives the fan to rotate. The fan will then transmit the air through the air guide plate to the inside of the main air outlet, and through the split pipe to the inside of the air chamber. This allows the protective cover to directly transmit the airflow to the surface of the capacitor, enhancing the cooling effect of the capacitor. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the fixed protection mechanism of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the components of the fixing and protection mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the heat dissipation unit of this utility model;

[0026] Figure 5 This is a schematic diagram of the power unit of the heat dissipation unit of this utility model.

[0027] In the diagram: 1. Capacitor; 2. Fixed protection mechanism; 21. Protective cover; 22. Slide rod; 23. Threaded rotating rod; 24. Mounting plate; 25. Pressure plate; 26. Movable baffle; 27. Back plate; 28. Buckle; 3. Cover plate; 4. Heat dissipation unit; 41. Air outlet; 42. Air guide chamber; 43. Diverter pipe; 44. Main air outlet pipe; 45. Air guide plate; 46. Outer frame; 47. Fixed frame; 48. Motor; 49. Fan; 5. Fixed plate; 6. Limiting ring; 7. Sealing gasket. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to embodiments:

[0029] Example 1: As Figure 1-5As shown, this utility model provides an explosion-proof capacitor cover fastening device, including a capacitor 1, a cover 3 movably connected to the top surface of the capacitor 1, a limiting ring 6 fixedly connected to the bottom surface of the cover 3, a sealing gasket 7 movably connected to the side of the limiting ring 6, the limiting ring 6 movably connected to the inner top of the capacitor 1, and the sealing gasket 7 tightly attached to the inner side of the capacitor 1.

[0030] A fixing plate 5 is fixedly connected to the side of the cover plate 3. A fixing protection mechanism 2 is provided on the outer surface of the fixing plate 5. A heat dissipation unit 4 is provided inside the side of the fixing protection mechanism 2.

[0031] The fixed protection mechanism 2 includes a pressure plate 25. A threaded rotating rod 23 is internally threaded to one end of the top surface of the pressure plate 25. A protective cover 21 is rotatably connected to the bottom end of the outer surface of the threaded rotating rod 23. A mounting plate 24 is fixedly connected to the side of the protective cover 21.

[0032] A sliding rod 22 is fixedly connected to one end of the top surface of the protective cover 21. One end of the sliding rod 22 is slidably connected to the inside of one side of the pressure plate 25. There are two sliding rods 22. The other sliding rod 22 is fixedly connected to the other end of the top surface of the protective cover 21.

[0033] The pressure plate 25 is movably connected to the outer surface of the fixed plate 5. A back plate 27 is fixedly connected to one side of the pressure plate 25, and a buckle 28 is fixedly connected to the other side of the pressure plate 25.

[0034] The buckle 28 has a sliding connection to a movable baffle 26, one end of which is fixed to the inside of the top surface of the pressure plate 25 by bolts.

[0035] In this embodiment, the number of protective covers 21 is the same as the number of capacitors 1, and there are two fixing plates 5, which are fixed to the left and right ends of the cover plate 3 respectively. The sealing gasket 7 is made of soft and corrosion-resistant material, which can play a good sealing role. The protective covers 21 are fixed inside the chassis by mounting plates 24.

[0036] Mounting plate 24 fixes the protective cover 21 inside the chassis and is located on the outer surface of the fixed capacitor 1. This can prevent the capacitor 1 from being damaged by collisions and affecting its normal operation. Fixing the heat dissipation unit 4 to the side of the fixed protection mechanism 2 and fixing it with bolts can enhance the heat dissipation effect of the capacitor 1 and extend the service life of the capacitor 1.

[0037] Remove the movable baffle 26 from the inside of the buckle 28, insert the fixing plate 5 on the side of the cover plate 3 into the inside of the back plate 27, and reinsert the movable baffle 26 into the inside of the buckle 28 and fix the movable baffle 26. The cooperation between the movable baffle 26 and the back plate 27 can ensure that the cover plate 3 will not shake.

[0038] Rotating the threaded rod 23 causes the pressure plate 25, which is threaded to it, to slide down along the slide bar 22. As the pressure plate 25 presses down, the cover plate 3 inserts the limiting ring 6 into the top surface of the capacitor 1 and achieves a certain degree of sealing effect through the sealing gasket 7.

[0039] After the cover plate 3 is inspected, it needs to be replaced. The threaded rod 23 can be rotated in the opposite direction to make the pressure plate 25 slide up along the slide rod 22, which will drive the limit ring 6 and the sealing gasket 7 to be taken out from the inside of the capacitor 1. The movable baffle 26 can be taken out from the inside of the buckle 28. The intact cover plate 3 can be used to replace the original cover plate 3 inside the pressure plate 25 and installed on the top surface of the capacitor 1.

[0040] If capacitor 1 needs to be replaced, the threaded rod 23 can be rotated in the opposite direction to its limit, so that the pressure plate 25 is disengaged from the slide rod 22. At this time, the pressure plate 25 can be rotated away from the opening end of the protective cover 21, and the capacitor 1 can be disassembled and replaced through the side opening of the protective cover 21. Then, the pressure plate 25 can be reinstalled on the outer surface of the slide rod 22 to restore the normal operation of the device.

[0041] Example 2: As Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the heat dissipation unit 4 includes an air outlet 41, the air outlet 41 is movably connected to the inside of the side of the protective cover 21, the side of the air outlet 41 is fixedly connected to an air guide chamber 42, the air guide chamber 42 is fixedly connected to the side of the protective cover 21 by bolts, and the input end of the air guide chamber 42 is fixedly connected to a diversion pipe 43.

[0042] The input end of the split pipe 43 is fixedly connected to the main air outlet pipe 44, the side of the main air outlet pipe 44 is fixedly connected to the air guide plate 45, the side of the air guide plate 45 is fixedly connected to the outer frame 46, and the inside of the outer frame 46 is fixedly connected to the fixing frame 47.

[0043] A motor 48 is fixedly connected inside the fixed frame 47, and a fan 49 is fixedly connected to the output end of the motor 48. The fan 49 is movably connected inside the outer frame 46.

[0044] In this embodiment, the number of air guide chambers 42 is the same as the number of protective covers 21. The air guide chambers 42 are fixed to the side of the protective cover 21 by bolts. The diversion pipe 43 can transmit a part of the air inside the main air outlet pipe 44 to the inside of the air guide chamber 42. The internal fixing frame 47 is fixed with a filter screen for filtering impurities in the air.

[0045] Fix the outer frame 46 in a suitable position, insert the air outlet 41 into the side opening of the protective cover 21, and use bolts to fix the air guide chamber 42 to ensure that the diversion pipe 43 and the main air outlet 44 are in a connected state.

[0046] When the motor 48 is turned on, the blower 49 rotates. At this time, the blower 49 will transmit the air through the air guide plate 45 to the inside of the air outlet main pipe 44, and through the split pipe 43 to the inside of the air guide chamber 42, so that the protective cover 21 can directly transmit the airflow to the surface of the capacitor 1, thereby enhancing the cooling effect of the capacitor 1.

[0047] The working principle of the explosion-proof capacitor cover fastening device will be explained in detail below.

[0048] like Figure 1-5 As shown, the protective cover 21 is fixed inside the chassis by the mounting plate 24 and is located on the outer surface of the fixed capacitor 1, which can prevent the capacitor 1 from being damaged by collision and affecting its normal operation.

[0049] Fix the outer frame 46 in a suitable position, insert the air outlet 41 into the side opening of the protective cover 21, and use bolts to fix the air guide chamber 42 to ensure that the diversion pipe 43 and the main air outlet 44 are in a connected state.

[0050] The fixing plate 5 on the side of the cover plate 3 is inserted into the back plate 27, and the movable baffle 26 is inserted into the buckle 28. At the same time, the movable baffle 26 is fixed. The cooperation between the movable baffle 26 and the back plate 27 can ensure that the cover plate 3 will not shake.

[0051] Rotating the threaded rod 23 causes the pressure plate 25, which is threadedly connected to it, to slide down along the slide bar 22. As the pressure plate 25 presses down, the cover plate 3 inserts the limiting ring 6 into the top surface of the capacitor 1 and achieves a certain degree of sealing through the sealing gasket 7.

[0052] When the motor 48 is turned on, the blower 49 will rotate. At this time, the blower 49 will transmit the air through the air guide plate 45 to the inside of the air outlet main pipe 44, and through the split pipe 43 to the inside of the air guide chamber 42, so that the protective cover 21 can directly transmit the airflow to the surface of the capacitor 1, thereby enhancing the cooling effect of the capacitor 1.

[0053] After the cover plate 3 is inspected, it needs to be replaced. The threaded rod 23 can be rotated in the opposite direction to make the pressure plate 25 slide up along the slide rod 22, which will drive the limit ring 6 and the sealing gasket 7 to be taken out from the inside of the capacitor 1. The movable baffle 26 can be taken out from the inside of the buckle 28. The intact cover plate 3 can be used to replace the original cover plate 3 inside the pressure plate 25 and installed on the top surface of the capacitor 1.

[0054] If capacitor 1 needs to be replaced, the threaded rod 23 can be rotated in the opposite direction to its limit, so that the pressure plate 25 is disengaged from the slide rod 22. At this time, the pressure plate 25 can be rotated away from the opening end of the protective cover 21, and the capacitor 1 can be disassembled and replaced through the side opening of the protective cover 21. Then, the pressure plate 25 can be reinstalled on the outer surface of the slide rod 22 to restore the normal operation of the device.

[0055] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all modifications or improvements made without departing from the spirit and concept of the present invention are within the protection scope of the present invention.

Claims

1. An explosion-proof capacitor cover plate fastening device comprising a capacitor (1), characterized by: The top surface of the capacitor (1) is movably connected with a cover plate (3), the side surface of the cover plate (3) is fixedly connected with a fixed plate (5), the outer surface of the fixed plate (5) is provided with a fixed protection mechanism (2), and the side surface of the fixed protection mechanism (2) is internally provided with a heat dissipation unit (4). The fixed protection mechanism (2) comprises a pressing plate (25) movably connected to the outer surface of the fixed plate (5), the side surface of the pressing plate (25) is fixedly connected with a back plate (27), and the other side surface of the pressing plate (25) is fixedly connected with a buckle (28). The inside of the buckle (28) is slidably connected with a movable baffle (26), one end of the movable baffle (26) is fixed in the inside of the top surface of the pressing plate (25) through a bolt.

2. An explosion-proof capacitor cover plate fastening device according to claim 1, characterized in that: The inside of one end of the top surface of the pressing plate (25) is threadedly connected with a threaded rotating rod (23), the outer surface of the threaded rotating rod (23) is rotatably connected with a protective cover (21) at the bottom end, and the side surface of the protective cover (21) is fixedly connected with a mounting plate (24).

3. An explosion-proof capacitor cover plate fastening device according to claim 2, characterized in that: One end of the protective cover (21) is fixedly connected with a sliding rod (22), one end of the sliding rod (22) is slidably connected in the inside of one end of the side surface of the pressing plate (25), the number of the sliding rod (22) is two, and the other sliding rod (22) is fixedly connected to the other end of the top surface of the protective cover (21).

4. An explosion-proof capacitor cover plate fastening device according to claim 3, characterized in that: The bottom surface of the cover plate (3) is fixedly connected with a limiting ring (6), the side surface of the limiting ring (6) is movably connected with a sealing gasket (7), the limiting ring (6) is movably connected to the inside top end of the capacitor (1), and the sealing gasket (7) is tightly attached to the inside side surface of the capacitor (1).

5. A device for securing a cover plate of an explosion-proof capacitor according to claim 4, characterized in that: The heat dissipation unit (4) comprises an air outlet (41) movably connected to the inside of the side surface of the protective cover (21), the side surface of the air outlet (41) is fixedly connected with an air guide bin (42), the air guide bin (42) is fixedly connected to the side surface of the protective cover (21) through a bolt, and the input end of the air guide bin (42) is fixedly connected with a shunt pipe (43).

6. A device for securing a cover plate of an explosion-proof capacitor according to claim 5, wherein: The input end of the shunt pipe (43) is fixedly connected with an air outlet main pipe (44), the side surface of the air outlet main pipe (44) is fixedly connected with an air guide plate (45), the side surface of the air guide plate (45) is fixedly connected with an outer frame (46), and the inside of the outer frame (46) is fixedly connected with a fixed frame (47).

7. An explosion-proof capacitor cover plate fastening device according to claim 6, characterized in that: The inside of the fixed frame (47) is fixedly connected with a motor (48), the output end of the motor (48) is fixedly connected with a blowing fan (49), and the blowing fan (49) is movably connected to the inside of the outer frame (46).

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