Self-adaptive explosion-proof groove capacitor

Abstract

The invention relates to the technical field of electrolytic capacitors, and discloses a self-adaptive explosion-proof groove capacitor which comprises an electrolytic capacitor body. The explosion-proof assembly is used for pressure relief and explosion prevention when high temperature is generated in the electrolytic capacitor body, the explosion-proof assembly comprises an explosion-proof groove formed in the outer surface of the bottom end of the shell and memory alloy arranged in the explosion-proof groove in a filling mode, an arc-shaped cavity is formed in the inner top wall of the explosion-proof groove, and an arc-shaped sealing plate is arranged on the inner wall of the arc-shaped cavity in a sliding mode. By arranging the explosion-proof assembly, in the actual use process of the electrolytic capacitor, when the temperature in the electrolytic capacitor rises to a specific temperature, air pressure in the electrolytic capacitor body can be discharged through a first pressure relief hole, a connecting hole and a second pressure relief hole, and the purpose of automatically relieving pressure in the electrolytic capacitor body is achieved; therefore, the explosion risk of the electrolytic capacitor is reduced, and the explosion-proof measure of the electrolytic capacitor can be repeatedly used.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic capacitors, and in particular to an adaptive explosion-proof slot capacitor. Background Art

[0002] Currently, capacitors on the market generally adopt a fixed-size explosion-proof slot design, which can effectively prevent safety accidents caused by excessive internal pressure under normal working conditions. However, with the continuous improvement of safety requirements for electrical equipment, traditional static explosion-proof measures have been unable to meet the needs of increasingly complex application environments.

[0003] In order to meet the above challenges, the industry usually adopts two ways to improve the protection mechanism of traditional capacitors: one is to enhance the shell strength, and the other is to optimize the circuit protection strategy. The former is to use stronger materials or increase the wall thickness to resist greater internal pressure, but this method will lead to increased costs and weight; the latter is to avoid overload by monitoring current anomalies and cutting off the power supply in time, but this method is slow to respond to sudden faults and sometimes cannot even completely prevent accidents.

[0004] Although the above methods have improved the safety performance of capacitors to a certain extent, they are all based on pre-set thresholds for judgment and processing, lacking flexibility and intelligence, and therefore still pose certain safety risks. Especially under extreme working conditions (such as high temperature and high pressure), these fixed protection measures often seem to be powerless and cannot respond quickly to changes in actual conditions.

[0005] To this end, the present invention provides an adaptive explosion-proof slot capacitor. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The present invention provides an adaptive explosion-proof slot capacitor, comprising: An electrolytic capacitor body, the electrolytic capacitor body comprising a shell and metal terminals arranged inside the shell and extending to the outer surface of the shell, and the outer surfaces of the two metal terminals inside the shell are wound with multiple layers of electrolyte membranes; An explosion-proof component is used for pressure relief and explosion prevention when high temperature is generated inside an electrolytic capacitor body. The explosion-proof component includes an explosion-proof groove opened on the outer surface of the bottom end of a shell, and a memory alloy filled in the explosion-proof groove. An arc-shaped cavity is opened on the inner top wall of the explosion-proof groove, and an arc-shaped sealing plate is slidably arranged on the inner wall of the arc-shaped cavity. The inner walls on both sides of the arc-shaped cavity are respectively provided with a first pressure relief hole extending to the inside of the shell, and a second pressure relief hole extending to the outer surface of the shell. A connecting hole staggered with the first pressure relief hole and the second pressure relief hole is opened on the surface of the arc-shaped sealing plate. A sealing strip slidably connected to the inner wall of the explosion-proof groove is fixed at the bottom end of the arc-shaped sealing plate, and a limiting strip corresponding to the bottom end of the sealing strip is fixed on the inner wall of the explosion-proof groove. The outer surfaces of the arc-shaped sealing plate and the sealing strip are both sleeved with a rubber sealing sleeve. A first reset spring is fixed at the top end of the arc-shaped sealing plate, and the top end of the first reset spring is fixedly connected to the inner top wall of the arc-shaped cavity.

[0008] By adopting the above technical solution, when the temperature inside the electrolytic capacitor rises to a specific temperature, the memory alloy is locally heated to above the critical point under the action of the heat conduction effect. At this time, the memory alloy will spontaneously deform according to the memory, causing the volume of the memory alloy inside the explosion-proof groove to expand, driving the sealing strip and the arc-shaped sealing plate to move upward, thereby driving the connecting hole on the arc-shaped sealing plate to move upward to the middle of the first pressure relief hole and the second pressure relief hole, so that the first pressure relief hole and the second pressure relief hole are connected, and then the air pressure inside the electrolytic capacitor body can be discharged through the first pressure relief hole, the connecting hole and the second pressure relief hole, thereby achieving the purpose of automatically relieving the pressure inside the electrolytic capacitor body.

[0009] Preferably, the material of the memory alloy is Nitinol, and the memory alloy can be replaced by a shape memory polymer prepared by doping a carbon fiber tube with a polyurethane matrix.

[0010] By adopting the above technical solution, Nitinol is preferably used as the raw material for the memory alloy because of its good biocompatibility and excellent corrosion resistance; the shape memory polymer can be prepared by doping a polyurethane matrix with a carbon fiber tube. This type of composite material not only has high mechanical strength but also exhibits excellent thermal sensitivity.

[0011] Preferably, a fixing component for fixing the electrolytic capacitor body is disposed on the outer surface of the bottom end of the electrolytic capacitor body, and the fixing component comprises a fixing ring disposed on the outer surface of the bottom end of the electrolytic capacitor body.

[0012] By adopting the above technical solution, the fixing ring can be fixed in a designated position by glue in advance during the installation of the electrolytic capacitor body.

[0013] Preferably, an annular cavity is provided inside the fixing ring, and a plurality of mounting holes are provided on the inner wall of the annular cavity in a circular array, and a fixing cylinder is fixedly provided on the inner wall of the plurality of mounting holes, a sliding hole is provided on the inner wall of the fixing cylinder, an internal threaded cylinder is slidably provided on the inner wall of the sliding hole, and an arc-shaped positioning plate is fixedly provided on the end of the internal threaded cylinder, and a rubber anti-slip pad is fixedly provided on the inner arc surface of the arc-shaped positioning plate.

[0014] By adopting the above technical solution, the arc-shaped positioning plate can be driven to press against the outer surface of the electrolytic capacitor body through the extension of the internal threaded tube, thereby achieving effective clamping and fixing of the electrolytic capacitor body after installation, and the provision of the rubber anti-slip pad can achieve effective protection of the outer surface of the electrolytic capacitor body.

[0015] Preferably, the inner wall of the annular cavity is rotatably provided with threaded columns corresponding to a plurality of fixed cylinders, and the threaded columns extend into the interior of the fixed cylinder and are threadedly connected with the inner wall of the internal threaded cylinder.

[0016] By adopting the above technical solution, the internal threaded barrel can be automatically extended outward by the rotation of the threaded column.

[0017] Preferably, an annular rotating hole is opened on the inner top wall of the annular cavity, and a rotating ring is rotatably provided on the inner wall of the annular rotating hole through a bearing, a bevel gear ring is fixedly provided on the lower surface of the rotating ring, and driven bevel gears are fixedly provided on the outer surfaces of several threaded columns, and several driven bevel gears are meshed with the bevel gear ring, and an operating handle for rotating the rotating ring is fixedly provided on the upper surface of the rotating ring.

[0018] By adopting the above technical solution, the rotating ring can be rotated by operating the operating handle to drive the bevel gear ring to rotate, thereby driving a plurality of driven bevel gears and threaded columns to rotate automatically.

[0019] Preferably, two symmetrical limiting blocks are fixedly provided on the outer surface of the end of the internal threaded cylinder, and a strip-shaped limiting opening for the two limiting blocks to slide is opened on the inner wall of the fixed cylinder.

[0020] By adopting the above technical solution, the stability of the internal threaded barrel when extending can be effectively guaranteed under the action of the limit block.

[0021] Preferably, a reinforcement component for reinforcing the electrolytic capacitor body during installation is provided inside the fixing ring, and the reinforcement component includes a Z-shaped pressure plate respectively fixed on the surfaces of the two limit blocks, and a telescopic airbag fixed on the inner wall of the annular cavity and corresponding to the Z-shaped pressure plate, and the telescopic end of the telescopic airbag is fixedly connected to the surface of the Z-shaped pressure plate.

[0022] By adopting the above technical solution, the Z-shaped pressing plate can be driven to automatically press the telescopic airbag during the movement of the limit block.

[0023] Preferably, the reinforcement component also includes a through hole opened on the inner wall of the annular cavity, and a mounting tube fixed on the inner wall of the through hole, the inner wall of the mounting tube is slidably provided with a reinforcement column, and the outer surface of the shell is provided with a reinforcement groove corresponding to the reinforcement column.

[0024] By adopting the above technical solution, the electrolytic capacitor body can be effectively reinforced by extending the reinforcement column and inserting it into the reinforcement groove.

[0025] Preferably, an inflatable airbag column is fixedly provided on the inner wall of the mounting tube, the end of the inflatable airbag column is fixedly connected to the end of the reinforcement column, and a connecting hose is provided on the end of the telescopic airbag, one end of the connecting hose extends to the interior of the telescopic airbag, and the other end of the connecting hose extends to the interior of the inflatable airbag column, and a second return spring is fixedly provided on the inner top wall and inner bottom wall of the telescopic airbag.

[0026] By adopting the above technical solution, after the telescopic airbag is compressed, the airflow can be transported to the inside of the expansion airbag column through the connecting hose, so that the expansion airbag column expands, thereby driving the reinforcement column to automatically extend outward.

[0027] The beneficial effects of the present invention are: The adaptive explosion-proof slot capacitor described in the present invention is provided with an explosion-proof component so that when the temperature inside the electrolytic capacitor rises to a specific temperature during actual use, the gas pressure inside the electrolytic capacitor body can be discharged through the first pressure relief hole, the connecting hole and the second pressure relief hole, thereby achieving the purpose of automatically relieving the pressure inside the electrolytic capacitor body, thereby reducing the explosion risk of the electrolytic capacitor, and the explosion-proof measures of the electrolytic capacitor can be used repeatedly.

[0028] The adaptive explosion-proof slot capacitor described in the present invention, by setting a fixing component, enables the electrolytic capacitor to enable a plurality of arc-shaped positioning plates to simultaneously effectively clamp the bottom of the electrolytic capacitor body during installation, thereby achieving the purpose of effectively fixing the installed electrolytic capacitor body and ensuring the stability of the electrolytic capacitor body when used after installation.

[0029] The adaptive explosion-proof slot capacitor described in the present invention can effectively fix the electrolytic capacitor body after being fixed by setting a reinforcement component when the rotation of the threaded column drives the internal threaded tube to extend, thereby further ensuring the stability of the electrolytic capacitor body after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2It is a schematic diagram of the three-dimensional structure of the electrolytic capacitor body of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the electrolytic capacitor body shell of the present invention; Figure 4 The present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the top view structure of the fixing ring of the present invention; Figure 6 It is a schematic diagram of a partial top-sectional structure of a fixing ring of the present invention; Figure 7 The present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 It is a schematic diagram of the cross-sectional structure of the fixing ring of the present invention.

[0031] Description of reference numerals: 100, electrolytic capacitor body; 101, housing; 102, metal terminal; 103, multilayer electrolyte membrane; 200, explosion-proof assembly; 201, explosion-proof groove; 202, memory alloy; 203, arc cavity; 204, arc sealing plate; 205, first pressure relief hole; 206, second pressure relief hole; 207, connecting hole; 208, sealing strip; 209, limit strip; 2010, rubber sealing sleeve; 2011, first return spring; 300, fixing assembly; 301, fixing ring; 302, annular cavity; 303, fixing cylinder; 304, internal thread cylinder; 305, arc positioning plate; 306, rubber anti-skid pad; 307, threaded column; 308, rotating ring; 309, bevel gear ring; 3010, driven bevel gear; 3011, operating handle; 3012, limit block; 3013, strip limit opening; 400, reinforcement assembly; 401, Z-shaped pressure plate; 402, telescopic airbag; 403, mounting tube; 404, reinforcement column; 405, reinforcement groove; 406, expansion airbag column; 407, connecting hose; 408, second return spring. DETAILED DESCRIPTION

[0032] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0033] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments. Figures 1 to 8 , this application provides an adaptive explosion-proof tank capacitor, please refer to Figures 1 to 4 , including, an electrolytic capacitor body 100, the electrolytic capacitor body 100 includes a shell 101 and a metal terminal 102 arranged inside the shell 101 and extending to the outer surface of the shell 101, and the outer surfaces of the two metal terminals 102 inside the shell 101 are wound with a multi-layer electrolyte membrane 103; an explosion-proof component 200, which is used to release pressure and prevent explosion when high temperature is generated inside the electrolytic capacitor body 100, and the explosion-proof component 200 includes an explosion-proof groove 201 opened on the outer surface of the bottom end of the shell 101, and a filling arranged The memory alloy 202 inside the explosion-proof groove 201 is an arc-shaped block structure. The inner top wall of the explosion-proof groove 201 is provided with an arc-shaped cavity 203, and the inner wall of the arc-shaped cavity 203 is slidably provided with an arc-shaped sealing plate 204. The inner walls of the arc-shaped cavity 203 on both sides are respectively provided with a first pressure relief hole 205 extending to the inside of the shell 101, and a second pressure relief hole 206 extending to the outer surface of the shell 101. The surface of the arc-shaped sealing plate 204 is provided with a connecting hole staggered with the first pressure relief hole 205 and the second pressure relief hole 206. The arc-shaped sealing plate 204 has a sealing strip 208 fixedly connected to the inner wall of the explosion-proof groove 201 at the bottom end thereof, and the arc-shaped cavity 203 and the explosion-proof groove and the inner wall of the explosion-proof groove 201 are fixedly provided with a limiting strip 209 corresponding to the bottom end of the sealing strip 208. The outer surfaces of the arc-shaped sealing plate 204 and the sealing strip 208 are both sleeved with a rubber sealing sleeve 2010. The top end of the arc-shaped sealing plate 204 is fixedly provided with a first return spring 2011, and the top end of the first return spring 2011 is fixedly connected to the inner top wall of the arc-shaped cavity 203. Among them, the function of the rubber sealing sleeve 2010 is to enable the arc sealing plate 204 and the sealing strip 208 to seal the gaps between the arc sealing plate 204 and the arc cavity 203 and the explosion-proof groove 201 respectively when they are stationary, and to seal the gap between the sealing strip 208 and the explosion-proof groove 201. In addition, the contact surface between the outer surface of the memory alloy 202 and the inner wall of the explosion-proof groove 201 is sealed and fixed by glue, and at the same time, the top of the memory alloy 202 and the lower surface of the sealing strip 208 are sealed and fixed by glue.

[0034] Specifically, by setting the explosion-proof component 200, when the temperature inside the electrolytic capacitor rises to a specific temperature during actual use, the memory alloy 202 is locally heated to above the critical point under the effect of heat conduction. At this time, the memory alloy 202 will spontaneously deform according to the memory, causing the volume of the memory alloy 202 inside the explosion-proof groove 201 to expand, driving the sealing strip 208 and the arc-shaped sealing plate 204 to move upward, thereby driving the connecting hole 207 on the arc-shaped sealing plate 204 to move upward to the middle of the first pressure relief hole 205 and the second pressure relief hole 206, so that the first pressure relief hole 205 and the second pressure relief hole 206 are connected, thereby enabling the electrolytic capacitor to The air pressure inside the body 100 can be discharged through the first pressure relief hole 205, the connecting hole 207 and the second pressure relief hole 206, so as to achieve the purpose of automatically relieving the pressure inside the electrolytic capacitor body 100, thereby reducing the explosion risk of the electrolytic capacitor. Moreover, when the temperature inside the electrolytic capacitor decreases, the memory alloy 202 can return to its original state and drive the arc-shaped sealing plate 204 to move downward under the action of the first return spring 2011, so that the connecting hole 207 is staggered with the first pressure relief hole 205 and the second pressure relief hole 206, thereby achieving effective blocking of the first pressure relief hole 205 and the second pressure relief hole 206, thereby enabling the explosion-proof measures of the electrolytic capacitor to be repeatedly used.

[0035] Please refer to Figure 3 and Figure 4 The material of the memory alloy 202 is Nitinol, and the memory alloy 202 can be replaced by a shape memory polymer prepared by a polyurethane matrix doped with a carbon fiber tube.

[0036] Specifically, the memory alloy 202 preferably uses nitinol as the raw material because of its good biocompatibility and excellent corrosion resistance; the shape memory polymer can be prepared by doping a polyurethane matrix with a carbon fiber tube. This type of composite material not only has high mechanical strength but also exhibits excellent thermal sensitivity.

[0037] Please refer to Figure 1 and Figure 5 A fixing assembly 300 for fixing the electrolytic capacitor body 100 is disposed on the outer surface of the bottom end of the electrolytic capacitor body 100 . The fixing assembly 300 includes a fixing ring 301 disposed on the outer surface of the bottom end of the electrolytic capacitor body 100 .

[0038] Specifically, during the installation of the electrolytic capacitor body 100 , the fixing ring 301 can be fixed in advance at a designated position by glue.

[0039] Please refer to Figure 6 and Figure 7An annular cavity 302 is provided inside the fixing ring 301, and a plurality of mounting holes are provided on the inner wall of the annular cavity 302 in a circular array, and a fixing cylinder 303 is fixedly provided on the inner wall of the plurality of mounting holes, and a sliding hole is provided on the inner wall of the fixing cylinder 303, and an internal threaded cylinder 304 is slidably provided on the inner wall of the sliding hole, and an arc-shaped positioning plate 305 is fixedly provided at the end of the internal threaded cylinder 304, and a rubber anti-slip pad 306 is fixedly provided on the inner arc surface of the arc-shaped positioning plate 305.

[0040] Specifically, the extension of the internal threaded tube 304 can drive the arc-shaped positioning plate 305 to press against the outer surface of the electrolytic capacitor body 100, thereby effectively clamping and fixing the electrolytic capacitor body 100 after installation, and the provision of the rubber anti-slip pad 306 can effectively protect the outer surface of the electrolytic capacitor body 100.

[0041] Please refer to Figure 7 The inner wall of the annular cavity 302 is rotatably provided with threaded columns 307 corresponding to a plurality of fixed cylinders 303 . The threaded columns 307 extend into the interior of the fixed cylinder 303 and are threadedly connected with the inner wall of the internal threaded cylinder 304 .

[0042] Specifically, the internal threaded tube 304 can be automatically extended outward by the rotation of the threaded column 307 .

[0043] Please refer to Figure 8 An annular rotating hole is opened on the inner top wall of the annular cavity 302, and a rotating ring 308 is rotatably provided on the inner wall of the annular rotating hole through a bearing, a bevel gear ring 309 is fixedly provided on the lower surface of the rotating ring 308, and driven bevel gears 3010 are fixedly provided on the outer surfaces of several threaded columns 307, and several driven bevel gears 3010 are meshed with the bevel gear ring 309, and an operating handle 3011 for rotating the rotating ring 308 is fixedly provided on the upper surface of the rotating ring 308.

[0044] Specifically, the operating handle 3011 can be operated to rotate the rotating ring 308, thereby driving the bevel gear ring 309 to rotate, thereby driving a plurality of driven bevel gears 3010 and the threaded column 307 to rotate automatically.

[0045] Please refer to Figure 7 Two symmetrical limiting blocks 3012 are fixedly provided on the outer surface of the end of the internal threaded cylinder 304, and a strip-shaped limiting opening 3013 for the two limiting blocks 3012 to slide is opened on the inner wall of the fixed cylinder 303.

[0046] Specifically, under the action of the limiting block 3012 , the stability of the internal threaded tube 304 when it is extended can be effectively guaranteed.

[0047] Among them, the present invention sets a fixing component 300, so that during the installation process of the electrolytic capacitor, the fixing ring 301 can be fixed on the PCB board at a specified position by glue, and the electrolytic capacitor can be passed through the PCB board through the metal terminal 102, and then the operating handle 3011 is operated to rotate the rotating ring 308. The rotation of the rotating ring 308 drives the bevel gear ring 309 to rotate, and the rotation of the bevel gear ring 309 drives a plurality of driven bevel gears 3010 to rotate, thereby driving a plurality of threaded columns 307 to rotate at the same time, and the rotation of the threaded column 307 drives the internal threaded cylinder 304 to extend outward from the inside of the fixing cylinder 303, thereby driving the arc positioning plate 305 to move toward the middle, so that the plurality of arc positioning plates 305 can effectively clamp the bottom of the electrolytic capacitor body 100 at the same time, thereby achieving the purpose of effectively fixing the installed electrolytic capacitor body 100, and ensuring the stability of the electrolytic capacitor body 100 when used after installation.

[0048] Please refer to Figure 7 A reinforcement component 400 is provided inside the fixing ring 301 for reinforcing the electrolytic capacitor body 100 during installation. The reinforcement component 400 includes a Z-shaped pressing plate 401 respectively fixed on the surfaces of the two limit blocks 3012, and a telescopic airbag 402 fixed on the inner wall of the annular cavity 302 and corresponding to the Z-shaped pressing plate 401. The telescopic end of the telescopic airbag 402 is fixedly connected to the surface of the Z-shaped pressing plate 401.

[0049] Specifically, during the movement of the limiting block 3012 , the Z-shaped pressing plate 401 can be driven to automatically press the telescopic airbag 402 .

[0050] Please refer to Figure 7 The reinforcement component 400 also includes a through hole opened on the inner wall of the annular cavity 302, and a mounting cylinder 403 fixed on the inner wall of the through hole, a reinforcement column 404 is slidably arranged on the inner wall of the mounting cylinder 403, and a reinforcement groove 405 corresponding to the reinforcement column 404 is opened on the outer surface of the shell 101.

[0051] Specifically, the electrolytic capacitor body 100 can be effectively reinforced by extending the reinforcement column 404 and inserting it into the reinforcement groove 405 .

[0052] Please refer to Figure 7 An inflatable airbag column 406 is fixedly provided on the inner wall of the mounting tube 403, and the end of the inflatable airbag column 406 is fixedly connected to the end of the reinforcement column 404, and a connecting hose 407 is provided on the end of the telescopic airbag 402, one end of the connecting hose 407 extends to the interior of the telescopic airbag 402, and the other end of the connecting hose 407 extends to the interior of the inflatable airbag column 406, and a second return spring 408 is fixedly provided on the inner top wall and the inner bottom wall of the telescopic airbag 402.

[0053] Specifically, after the telescopic airbag 402 is compressed, the airflow can be delivered to the inside of the expansion airbag column 406 through the connecting hose 407, so that the expansion airbag column 406 expands, thereby driving the reinforcement column 404 to automatically extend outward.

[0054] Among them, the present invention sets a reinforcement component 400. In the process of the threaded column 307 rotating to drive the internal threaded tube 304 to extend, the limit block 3012 can drive the Z-shaped pressure plate 401 to squeeze the telescopic airbag 402, so that the gas in the telescopic airbag 402 can enter the interior of the expansion airbag column 406 through the connecting hose 407, so that the expansion airbag column 406 is extended, thereby driving the reinforcement column 404 to extend outward from the inside of the installation tube 403 and insert it into the reinforcement groove 405 on the outer shell 101, thereby achieving effective fixation of the electrolytic capacitor body 100 after fixation, and further ensuring the stability of the electrolytic capacitor body 100 after installation.

[0055] Working principle: During the actual use of the electrolytic capacitor, when the temperature inside the electrolytic capacitor rises to a specific temperature, the memory alloy 202 is locally heated to above the critical point under the effect of heat conduction. At this time, the memory alloy 202 will spontaneously deform according to the memory, causing the volume of the memory alloy 202 inside the explosion-proof groove 201 to expand, driving the sealing strip 208 and the arc-shaped sealing plate 204 to move upward, thereby driving the connecting hole 207 on the arc-shaped sealing plate 204 to move upward to the middle of the first pressure relief hole 205 and the second pressure relief hole 206, so that the first pressure relief hole 205 and the second pressure relief hole 206 are connected, so that the air pressure inside the electrolytic capacitor body 100 can pass through the first pressure relief hole 205, The connecting hole 207 and the second pressure relief hole 206 are discharged to achieve the purpose of automatically relieving the pressure inside the electrolytic capacitor body 100, thereby reducing the explosion risk of the electrolytic capacitor. When the temperature inside the electrolytic capacitor decreases, the memory alloy 202 can return to its original state and drive the arc-shaped sealing plate 204 to move downward under the action of the first reset spring 2011, so that the connecting hole 207 is staggered with the first pressure relief hole 205 and the second pressure relief hole 206, thereby achieving effective blocking of the first pressure relief hole 205 and the second pressure relief hole 206, thereby enabling the explosion-proof measures of the electrolytic capacitor to be repeatedly used. In addition, during the installation of the electrolytic capacitor, the fixing ring 301 can be first fixed at a specified position by glue. The electrolytic capacitor is passed through the metal terminal 102 on the PCB board at the position, and then the operating handle 3011 is operated to rotate the rotating ring 308. The rotation of the rotating ring 308 drives the bevel gear ring 309 to rotate. The rotation of the bevel gear ring 309 drives the several driven bevel gears 3010 to rotate, thereby driving the several threaded columns 307 to rotate at the same time. The rotation of the threaded column 307 drives the internal threaded cylinder 304 to extend outward from the inside of the fixed cylinder 303, thereby driving the arc positioning plate 305 to move toward the middle, so that the several arc positioning plates 305 can effectively clamp the bottom of the electrolytic capacitor body 100 at the same time, thereby effectively fixing the installed electrolytic capacitor body 100. The purpose is to ensure the stability of the electrolytic capacitor body 100 when it is used after installation. At the same time, when the threaded column 307 rotates to drive the internal threaded tube 304 to extend, the limit block 3012 can drive the Z-shaped pressure plate 401 to squeeze the telescopic airbag 402, so that the gas in the telescopic airbag 402 can enter the interior of the expansion airbag column 406 through the connecting hose 407, so that the expansion airbag column 406 is extended, thereby driving the reinforcement column 404 to extend outward from the inside of the installation tube 403 and insert it into the reinforcement groove 405 on the shell 101, thereby effectively fixing the electrolytic capacitor body 100 after being fixed, and further ensuring the stability of the electrolytic capacitor body 100 after installation.

[0056] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. An adaptive explosion-proof tank capacitor, characterized in that: include, An electrolytic capacitor body (100), the electrolytic capacitor body (100) comprising a shell (101) and metal terminals (102) arranged inside the shell (101) and extending to the outer surface of the shell (101), and the outer surfaces of the two metal terminals (102) inside the shell (101) are wound with a multilayer electrolyte membrane (103); An explosion-proof component (200) is used for pressure relief and explosion prevention when high temperature is generated inside an electrolytic capacitor body (100). The explosion-proof component (200) comprises an explosion-proof groove (201) provided on the outer surface of the bottom end of a shell (101), and a memory alloy (202) filled and arranged inside the explosion-proof groove (201). An arc-shaped cavity (203) is provided on the inner top wall of the explosion-proof groove (201), and an arc-shaped sealing plate (204) is slidably provided on the inner wall of the arc-shaped cavity (203). The inner walls on both sides of the arc-shaped cavity (203) are respectively provided with a first pressure relief hole (205) extending to the inside of the shell (101), and a second pressure relief hole (206) extending to the outer surface of the shell (101). The arc-shaped sealing plate (204) is provided on the inner wall of the arc-shaped cavity (203). A connection hole (207) staggered with the first pressure relief hole (205) and the second pressure relief hole (206) is provided on the surface of the plate (204); a sealing strip (208) slidably connected to the inner wall of the explosion-proof groove (201) is fixedly provided at the bottom end of the arc-shaped sealing plate (204); and a limiting strip (209) corresponding to the bottom end of the sealing strip (208) is fixedly provided on the inner wall of the explosion-proof groove (201); a rubber sealing sleeve (2010) is sleeved on the outer surfaces of the arc-shaped sealing plate (204) and the sealing strip (208); a first return spring (2011) is fixedly provided at the top end of the arc-shaped sealing plate (204); and the top end of the first return spring (2011) is fixedly connected to the inner top wall of the arc-shaped cavity (203).

2. The adaptive explosion-proof slot capacitor according to claim 1, characterized in that: The outer surface of the bottom end of the electrolytic capacitor body (100) is provided with a fixing component (300) for fixing the electrolytic capacitor body (100), and the fixing component (300) comprises a fixing ring (301) provided on the outer surface of the bottom end of the electrolytic capacitor body (100).

3. The adaptive explosion-proof slot capacitor according to claim 2, characterized in that: An annular cavity (302) is provided inside the fixing ring (301), and a plurality of mounting holes are provided on the inner wall of the annular cavity (302) in a circular array, and a fixing cylinder (303) is fixedly provided on the inner walls of the plurality of mounting holes, and a sliding hole is provided on the inner wall of the fixing cylinder (303), and an internal threaded cylinder (304) is slidably provided on the inner wall of the sliding hole, and an arc-shaped positioning plate (305) is fixedly provided at the end of the internal threaded cylinder (304), and a rubber anti-slip pad (306) is fixedly provided on the inner arc surface of the arc-shaped positioning plate (305).

4. The adaptive explosion-proof slot capacitor according to claim 3, characterized in that: The inner wall of the annular cavity (302) is rotatably provided with threaded columns (307) corresponding to a plurality of fixed cylinders (303); the threaded columns (307) extend into the interior of the fixed cylinder (303) and are threadedly connected to the inner wall of the internal threaded cylinder (304).

5. The adaptive explosion-proof slot capacitor according to claim 4, characterized in that: An annular rotating hole is formed on the inner top wall of the annular cavity (302), and a rotating ring (308) is rotatably provided on the inner wall of the annular rotating hole via a bearing, a bevel gear ring (309) is fixedly provided on the lower surface of the rotating ring (308), driven bevel gears (3010) are fixedly provided on the outer surfaces of a plurality of the threaded columns (307), and the plurality of driven bevel gears (3010) are meshed with the bevel gear ring (309), and an operating handle (3011) for rotating the rotating ring (308) is fixedly provided on the upper surface of the rotating ring (308).

6. The adaptive explosion-proof slot capacitor according to claim 3, characterized in that: Two symmetrical limiting blocks (3012) are fixedly arranged on the outer surface of the end of the internal threaded cylinder (304), and a strip-shaped limiting opening (3013) for the two limiting blocks (3012) to slide is opened on the inner wall of the fixed cylinder (303).

7. The adaptive explosion-proof slot capacitor according to claim 6, characterized in that: A reinforcement component (400) for reinforcing the electrolytic capacitor body (100) during installation is arranged inside the fixing ring (301), the reinforcement component (400) comprising a Z-shaped pressing plate (401) respectively fixed on the surfaces of two limit blocks (3012), and a telescopic airbag (402) fixed on the inner wall of the annular cavity (302) and corresponding to the Z-shaped pressing plate (401), the telescopic end of the telescopic airbag (402) being fixedly connected to the surface of the Z-shaped pressing plate (401).

8. The adaptive explosion-proof slot capacitor according to claim 7, characterized in that: The reinforcement component (400) further comprises a through hole formed on the inner wall of the annular cavity (302), and a mounting tube (403) fixedly mounted on the inner wall of the through hole; a reinforcement column (404) is slidably mounted on the inner wall of the mounting tube (403), and a reinforcement groove (405) corresponding to the reinforcement column (404) is formed on the outer surface of the housing (101).

9. The adaptive explosion-proof slot capacitor according to claim 8, characterized in that: An inflatable airbag column (406) is fixedly provided on the inner wall of the mounting tube (403), the end of the inflatable airbag column (406) is fixedly connected to the end of the reinforcement column (404), and a connecting hose (407) is provided on the end of the telescopic airbag (402), one end of the connecting hose (407) extends to the interior of the telescopic airbag (402), and the other end of the connecting hose (407) extends to the interior of the inflatable airbag column (406), and a second return spring (408) is fixedly provided on the inner top wall and the inner bottom wall of the telescopic airbag (402).

Images