A hollow rotary-connection type super capacitor

Abstract

The present invention discloses a hollow rotary-connection type supercapacitor, which includes at least one capacitor monomer. The capacitor monomer includes a housing, a dielectric coated within the housing, a hollow tube, and a top cover plate and a bottom cover plate respectively installed at both ends of the housing. Among them, the dielectric is arranged in a hollow structure, and the hollow tube is installed at the hollow position of the dielectric; the top cover plate is a packaging cover plate for sealing the dielectric within the housing; the bottom cover plate is a connection cover plate, and a threaded sleeve structure is provided on the bottom cover plate. Another capacitor monomer is connected through the threaded sleeve structure, so as to obtain a supercapacitor with a large capacity. The capacitance monomer of the supercapacitor of the present invention is in a ring tube structure, and the bottom cover plate of the capacitor monomer is in a nut structure. Through the nut structure, it can be rotationally connected and docked with another capacitor monomer to form a series structure, which can better replace the charge and discharge work of energy storage devices such as supercapacitors and lithium batteries.

Description

Technical Field

[0001] The present invention belongs to the technical field of capacitors, and particularly relates to a hollow rotary connection type super capacitor. Background Art

[0002] With the rapid development of consumer electronic products, while capacitors are growing steadily in the field of consumer electronics, their application fields have been expanded in many emerging fields such as energy-saving lamps, frequency converters, and new energy along with the structural transformation and technological progress, and the application scope is getting wider and wider. The basic function of capacitors in electronic circuits is generally summarized as: passing alternating current and blocking direct current, having functions of filtering, bypassing, coupling, and rapid charge and discharge, and having characteristics of small volume, large stored electric quantity, and high cost performance. With the progress of modern technology and the continuous improvement of capacitor performance, electrolytic capacitors have been widely used in consumer electronic products, communication products, computers and peripheral products, new energy, automation control, automotive industry, optoelectronic products, high-speed railways, aviation, and military equipment, etc.

[0003] There is a great demand for capacitors in terms of large capacitance. At present, generally, the stacking of multiple capacitor units is used for expansion to form a solid electrolytic capacitor with high capacitance. The known stacked solid electrolytic capacitor includes multiple capacitor units and a lead frame. Each capacitor unit includes an anode part, a cathode part, and an insulating part. The insulating part electrically insulates the anode part and the cathode part from each other, thereby constituting a large-capacity electrolytic capacitor.

[0004] However, the large-capacity capacitors of the above-mentioned prior art require a lead frame, and each capacitor unit includes an insulating part. The capacitor structure is complex and not conducive to integrated installation. Therefore, in view of the problems existing in the current prior art, it is really necessary to conduct research and development to provide a large-capacity aluminum electrolytic capacitor with a simple structure and convenient for integrated installation.

[0005] The disclosure of the above background art content is only used to assist in understanding the inventive concept and technical solution of the present invention, and it does not necessarily belong to the prior art of this patent application. Without clear evidence indicating that the above content was publicly available on the filing date of this patent application, the above background art should not be used to evaluate the novelty and creativity of this application. Summary of the Invention

[0006] The purpose of the present invention is to provide a hollow rotary connection type super capacitor to solve at least one of the problems in the above background art.

[0007] To achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:

[0008] A hollow rotary-connected supercapacitor includes at least one capacitor unit. The capacitor unit includes a housing, a dielectric coated inside the housing, a hollow tube, and a top cover plate and a bottom cover plate respectively installed at both ends of the housing. Among them, the dielectric is arranged in a hollow structure, and the hollow tube is installed at the hollow position of the dielectric. A threaded sleeve structure is provided on the bottom cover plate, and it is connected to another capacitor unit through the threaded sleeve structure, thereby obtaining a supercapacitor with a large capacity.

[0009] In some embodiments, the housing is provided with through holes penetrating both ends, and the through holes form housing openings with the same size at both ends of the housing. Among them, a waist constriction structure is provided at the position of the outer surface of the housing near the housing openings at both ends for fixing the core package.

[0010] In some embodiments, the dielectric is a core package, and the core package includes an electrolytic paper layer, an anode foil, and a cathode foil. The electrolytic paper layer, the anode foil, and the cathode foil are configured to be wound to form a core package with a through hole in the center.

[0011] In some embodiments, the hollow tube includes an intermediate section, annular groove sections provided at both ends of the intermediate section, and crimping structures provided at both ends of the hollow tube. Among them, the intermediate section is installed in the through hole of the core package, and the annular groove sections and the crimping structures protrude from both ends of the core package.

[0012] In some embodiments, the top cover plate includes a cover plate main body, an outer sealing rubber ring, an inner sealing rubber ring, and an insulating sleeve. Among them, the cover plate main body is provided with a hollow through hole. The cover plate main body includes a bottom surface in contact with the core package and a top surface in contact with the outside. A circular annular stop portion is provided on the surface of the circular body between the top surface and the bottom surface. The annular stop portion stops at the waist constriction position at one end of the housing, and the outer sealing rubber ring is placed on the outer surface of the stop portion.

[0013] In some embodiments, a stop portion is provided in the hollow through hole, and the inner sealing rubber ring is placed on the stop portion.

[0014] In some embodiments, the insulating sleeve is provided with an insulating tube, and the insulating tube is matched with the annular groove section of the hollow tube. The length of the hollow through hole is equal to the length of the insulating tube, and its aperture is adapted to the outer diameter of the insulating tube.

[0015] In some embodiments, the bottom cover plate includes a bottom cover plate main body, an inner sealing rubber ring pad, an outer sealing rubber ring pad, and an inner insulating ring. Among them, the bottom cover plate main body is provided with a hollow through hole structure. The bottom cover plate main body includes a circular base and a sleeve protruding from the circular base.

[0016] In some embodiments, the hollow through-hole structure includes a threaded hole formed inside the sleeve, and a first through-hole and a second through-hole that are coaxially penetrated with the threaded hole.

[0017] In some embodiments, the inner diameters of the threaded hole, the first through-hole, and the second through-hole are different from each other, so that a first stop portion and a second stop portion are formed inside the hollow through-hole structure.

[0018] The beneficial effects of the technical solution of the present invention are:

[0019] Compared with the prior art, the capacitor monomer of the super capacitor of the present invention is a ring tube structure, and the bottom cover plate of the capacitor monomer is a nut structure. Through the nut structure, it can be screwed and docked with another capacitor monomer to form a series structure, which can better replace the charging and discharging work of energy storage devices such as super capacitors and lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a three-dimensional structure diagram of a hollow screw-connected super capacitor according to an embodiment of the present invention;

[0022] Figure 2 is a three-dimensional diagram of a capacitor monomer of a hollow screw-connected super capacitor according to an embodiment of the present invention;

[0023] Figure 3 is an exploded diagram of a capacitor monomer of a hollow screw-connected super capacitor according to an embodiment of the present invention;

[0024] Figure 4 is another exploded diagram of a capacitor monomer of a hollow screw-connected super capacitor according to an embodiment of the present invention from another angle;

[0025] Figure 5 is a partial exploded diagram of a capacitor monomer of a hollow screw-connected super capacitor according to an embodiment of the present invention;

[0026] Figure 6 is an exploded diagram of a first cover plate of a capacitor monomer of a hollow screw-connected super capacitor according to an embodiment of the present invention;

[0027] Figure 7 is Figure 6 another perspective view of

[0028] Figure 8Exploded view of the second cover plate of the capacitor unit of the hollow screw - type supercapacitor according to an embodiment of the present invention;

[0029] Figure 9 is Figure 8 another perspective view of;

[0030] Figure 10 Illustration of the cooperation of the first cover plate and the second cover plate of the capacitor unit of the hollow screw - type supercapacitor according to an embodiment of the present invention;

[0031] Figure 11 Illustration of the capacitor unit of the hollow screw - type supercapacitor according to an embodiment of the present invention cut along the axis;

[0032] Figure 12 is Figure 1 illustration of the partial cut - away view of;

[0033] Figure 13 is Figure 2 illustration of the partial cut - away view of;

[0034] Figure 14 is Figure 2 illustration of the partial cut - away view of the other end of the capacitor unit of the hollow screw - type supercapacitor;

[0035] Figure 15 Schematic three - dimensional view of the capacitor unit of the hollow screw - type supercapacitor according to another embodiment of the present invention;

[0036] Figure 16 is Figure 15 exploded view of the cover plate of the capacitor unit;

[0037] Figure 17 is Figure 15 exploded view of the other cover plate of;

[0038] Figure 18 is Figure 15 exploded view of the capacitor unit;

[0039] Figure 19 is Figure 1 schematic diagram of the integrated installation of the hollow screw - type supercapacitor in an embodiment;

[0040] Figure 20 is Figure 1 schematic diagram of another integrated installation scheme of the hollow screw - type supercapacitor in an embodiment. Detailed implementation manners

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention clearer and more understandable, and to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for a fixing function or for a circuit connection function.

[0043] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the meaning of "a plurality of" is two or more. Terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Refer to Figures 1 - 14As shown in the figure, as an embodiment of the present invention, a hollow rotary connection type supercapacitor 300 is provided, which includes at least one capacitor unit 100. Among them, the capacitor unit 100 includes a housing 10, a dielectric 20 coated inside the housing 10, a hollow tube 30, and a first cover plate 40 and a second cover plate 50 respectively installed at both ends of the housing 10. Among them, the dielectric 20 is arranged in a hollow structure, and the hollow tube 30 is installed at the hollow position of the dielectric 20. A threaded structure is provided on the first cover plate 40, and the capacitor unit 100 is installed on the capacitor mounting bracket through the threaded structure or the capacitor unit 100 is connected and assembled with another capacitor unit 100 through the threaded structure.

[0046] The housing 10 is provided with through holes 101 penetrating both ends, and the through holes 101 form housing openings of the same size at both ends of the housing. Among them, a waist structure 102 is provided at a position on the outer surface of the housing near the housing openings at both ends for fixing the core package 20. The two ends of the housing 10 are respectively subjected to a curling design to fix the first cover plate 40 and the second cover plate 50.

[0047] In the embodiment of the present invention, taking the dielectric as the core package as an example for illustration, the core package 20 includes an electrolytic paper layer, an anode foil, and a cathode foil. The electrolytic paper layer, the anode foil, and the cathode foil are configured to be wound to form a core package 20 with a through hole 201 penetrating through the center. Core package fastening structures 202 are respectively provided at both ends of the core package 20 for fastening the wound core package 20 to prevent the electrolytic paper layer, the anode foil, and the cathode foil from spreading.

[0048] The hollow tube 30 includes an intermediate section 301, annular groove sections 302 respectively provided at both ends of the intermediate section 301, and curling structures 303 provided at both ends of the hollow tube. Among them, the intermediate section 301 is installed in the through hole 201 of the core package 20, and the length of the intermediate section 301 is equal to the length of the through hole 201 of the core package 20. The annular groove sections 302 and the curling structures protrude from both ends of the core package 20. The curling structures at both ends of the hollow tube 30 respectively extend into the first cover plate 40 and the second cover plate 50 to be connected and fixed with the first cover plate 40 and the second cover plate 50, so as to connect and fix the core package 20, the first cover plate 40, and the second cover plate 50 together. It can be understood that the two ends of the hollow tube 30 are circular tube openings, the core package is wound around the intermediate section 301 of the hollow tube, the first cover plate and the second cover plate are installed, and the circular tube openings at the ends of the hollow tube are curled and sealed outward, so that the first and second cover plates can be connected through the hollow tube, and the core package can be pressed and fixed between the first cover plate and the second cover plate.

[0049] Refer to Figure 5 、 Figure 6As shown, in some embodiments, the first cover plate 40 includes a cover plate body 401, an outer sealing ring 402, an inner sealing ring 403, and an insulating sleeve 404; wherein, the cover plate body 401 is made of metal, and in the embodiments of the present invention, the material of the cover plate body is aluminum; the cover plate body 401 is arranged in a hollow structure, which includes a circular body 4010 that cooperates with the core package 20, a threaded post 4011 protruding from the circular body, and an annular platform 4012 arranged between the threaded post 4011 and the circular body 4010; the insulating sleeve 404 includes an annular receiving space 4041 and an insulating tube 4042 protruding from the center of the insulating sleeve 404, and the annular receiving space 4041 is used to place the circular body 4010 of the cover plate body 401, and the insulating tube 4042 cooperates with the annular groove section 302 of the hollow tube 30, so as to insulate the cover plate body 401. Specifically, the hollow structure includes two through holes 4014 and 4013 with unequal apertures, and an annular stop portion 4015 is formed at the connection of the large through hole 4014 and the small through hole 4013. The inner sealing ring 403 is placed on the annular stop portion 4015, and the outer diameter of the inner sealing ring 403 is adapted to the inner hole diameter of the threaded post 403; the size of the outer sealing ring 402 is the same as that of the annular body of the cover plate body, and the inner diameter of the outer sealing ring is adapted to the outer diameter of the annular platform 4012, so that the outer sealing ring is sleeved on the annular platform and keeps in close contact with the circular body. When the first cover plate 40 is installed at one end of the outer shell 10, one end of the outer shell 10 is curled inward to buckle the outer sealing ring 402, so as to seal the first cover plate 40 at one end of the outer shell 10. The length of the small through hole 4013 is equal to the length of the insulating tube 4042, and its aperture is adapted to the outer diameter of the insulating tube 4042; the length of the insulating tube 4042 is equal to the length of the annular groove section 302 of the hollow tube, and its aperture is adapted to the outer diameter of the annular groove section 302 of the hollow tube 30. Designed in this way, after the first cover plate 40 is installed at the end of the hollow tube 30, the annular groove section 302 of the hollow tube 30 is in close cooperation with the first cover plate 40, and by curling the end of the hollow tube outward to buckle the inner sealing ring 403 of the first cover plate 40, the cover plate and the hollow tube are firmly connected together; and through the insulating sleeve, insulation between the cover plate and the hollow tube is achieved.

[0050] Refer to Figure 7 , Figure 8As shown, the second cover plate 50 includes a second cover plate body 501, an inner sealing gasket 502, an outer sealing gasket 503, and an inner insulating ring 504. Among them, the second cover plate body 501 is provided with a hollow through-hole structure. The second cover plate body 501 includes a circular base 5010 and a sleeve 5011 protruding from the circular base. The hollow through-hole structure includes a threaded hole 5012 formed inside the sleeve 5011, a first through-hole 5013, and a second through-hole 5014 that are coaxially connected to the threaded hole 5012. Among them, the threaded hole 5012 is adapted to the threaded post 4011 on the cover plate body 401 of the first cover plate 40, that is, the outer diameter of the threaded post 4011 on the cover plate body 401 of the first cover plate 40 is adapted to the inner diameter of the threaded hole 5012 of the second cover plate body 501, so that the threaded post 4011 on the cover plate body 401 of the first cover plate 40 can be screwed into the sleeve 5011 of the second cover plate body 501. The inner diameters of the threaded hole 5012, the first through-hole 5013, and the second through-hole 5014 are different from each other, so that a first stop portion 5015 and a second stop portion 5016 are formed in the hollow through-hole structure. The outer diameter of the sleeve 5011 of the second cover plate body 501 is smaller than the outer diameter of the base 5010, so that an annular table surface is formed on the base 5010. A convex rib 5017 is provided on the bottom surface of the base 5010, so that when the second cover plate 50 is installed at one end of the housing 10, a certain elastic force can be generated through the convex rib 5017 to make the cover plate installation more firm. The outer diameter of the inner sealing gasket 502 is the same as the inner diameter of the first through-hole 5013, so that the inner sealing gasket 502 can be placed at the position of the second stop portion 5016. The inner diameter of the outer sealing gasket 503 is the same as the outer diameter of the sleeve 5011, so that the outer sealing gasket 503 can be sleeved on the surface of the sleeve and placed on the annular table surface of the base 5010. The inner diameter of the second through-hole 5014 is adapted to the outer diameter of the annular groove section of the hollow tube, and the inner diameter of the inner insulating ring is adapted to the outer diameter of the annular groove section of the hollow tube, so that the inner insulating ring is sleeved on one end of the annular groove section of the hollow tube close to the core package, so as to realize the insulation of the second cover plate. Designed in this way, after the second cover plate 50 is installed at the other end of the hollow tube 30, the annular groove section 302 of the hollow tube 30 is tightly matched with the inner insulating ring 504, and by curling the end of the hollow tube 30 outwards to buckle the inner sealing gasket 502 of the second cover plate 50, the cover plate and the hollow tube are firmly connected together. When the second cover plate 50 is installed at the other end of the housing 10, the other end of the housing 10 is curled inwards to buckle the outer sealing gasket, so as to seal the second cover plate 50 at the other end of the housing.

[0051] Refer to Figures 1 - 12As shown in the figure, as an embodiment of the present invention, after the core package 20 is wound, the hollow tube 30 is inserted into the through hole 201 of the core package. The middle section of the hollow tube 30 is placed in the through hole of the core package. The first cover plate 40 and the second cover plate 50 are respectively installed at both ends of the hollow tube. The annular groove sections at both ends of the hollow tube 30 are respectively matched with the small through hole 4013 of the main body 401 of the first cover plate 40 and the second through hole 5014 of the main body of the second cover plate 50. The ends of the hollow tube are respectively curled outward to buckle the inner sealing rings 403 of the first cover plate and the inner sealing ring pads 502 of the second cover plate, so as to fix the core package 20 between the first and second cover plates; the outer shell 10 is installed, and the waist is tightened at both ends of the outer shell 10 to fix the core package, and then the ends of the outer shell are respectively curled inward to buckle the outer sealing rings 402 of the first cover plate and the outer sealing ring pads 503 of the second cover plate, thus completing the encapsulation of the aluminum electrolytic capacitor. Among them, one end of the capacitor is the first cover plate 40, and the threaded post 4011 of the first cover plate protrudes from the surface of the outer shell. The other end of the capacitor is the second cover plate 50, and the threaded sleeve 5012 of the second cover plate protrudes from the surface of the outer shell. The capacitor of the present invention is convenient for expansion and integrated installation. Refer to Figure 9 , Figure 10 As shown, two capacitors are taken as an example for illustration in the figure. The threaded sleeve 5011 of the second cover plate 50 of the first capacitor is matched with the threaded post 4011 of the first cover plate 40 of the second capacitor. The threaded post 4011 is screwed into the threaded hole 5012 of the threaded sleeve 5011, so as to connect the two aluminum electrolytic capacitors together. The embodiments of the present invention are only illustrated by taking the connection of two capacitors as an example. The connection of multiple capacitors is similar and will not be elaborated here. In some embodiments, the first cover plate is the positive terminal, and the second cover plate is the negative terminal.

[0052] The capacitor monomer of the super capacitor of the present invention is a ring tube structure. The positive and negative terminals of the capacitor monomer are respectively screw and nut structures. Two capacitor monomers of the same model can be directly screwed and butted together through their positive and negative poles to form a series structure. Within the voltage withstand range of the terminal insulators of the capacitor, a limited number of capacitors can be connected in series. However, it should be noted that when multiple capacitor monomers are connected in series, equal voltage balance management of the capacitor monomers needs to be carried out. In the application of high-efficiency compact power energy stacks, through a larger-scale parallel and series connection management, it can better replace the charging and discharging work of energy storage devices such as super capacitors and lithium batteries.

[0053] Refer to Figures 15 - 18As shown in the figure, as another embodiment of the present invention, a hollow rotary-connection type supercapacitor includes at least one capacitor unit, and the capacitor unit includes: a housing 10, a dielectric 20 wrapped inside the housing 10, a hollow tube 30, and a top cover plate 60 and a bottom cover plate 70 respectively installed at both ends of the housing; wherein, the dielectric 20 is arranged in a hollow structure, and the hollow tube 30 is installed at the hollow position of the dielectric 20; a threaded sleeve structure is provided on the bottom cover plate 70, and is connected to another capacitor unit through the threaded sleeve structure to expand the capacitor, so as to obtain a supercapacitor with a large capacity.

[0054] The housing 10 is provided with through holes 101 penetrating through both ends, and the through holes 101 form housing openings with the same size at both ends of the housing 10. A waist constriction structure 102 is provided at the position of the outer surface of the housing 10 near the housing openings at both ends for fixing the core package 20; after installing the top cover plate 60 and the bottom cover plate 70, the housing openings at both ends are curled respectively, so that the top cover plate and the bottom cover plate are sealed at the housing openings at both ends, and the core package is sealed between the housing and the hollow tube.

[0055] For the convenience of description, the following takes the dielectric as the core package as an example for description. The core package 20 includes an electrolytic paper layer, an anode foil, and a cathode foil; the electrolytic paper layer, the anode foil, and the cathode foil are configured to be wound to form a core package with a through hole 201 penetrating through the center. Core package fastening structures 202 are respectively provided at both ends of the core package 20 for fastening the wound core package to prevent the electrolytic paper layer, the anode foil, and the cathode foil from spreading.

[0056] The hollow tube 30 includes an intermediate section 301, annular groove sections 302 respectively provided at both ends of the intermediate section 301, and curling structures 303 provided at both ends of the hollow tube. Among them, the intermediate section 301 is installed in the through hole 201 of the core package, and the annular groove sections 302 and the curling structures protrude from both ends of the core package. The curling structures at both ends of the hollow tube 30 respectively extend into the top cover plate 60 and the bottom cover plate 70 to be fixedly connected with the top cover plate 60 and the bottom cover plate 70, so as to fixedly connect the core package 30, the top cover plate 60, and the bottom cover plate 70 together. It can be understood that both ends of the hollow tube are circular tube openings, the core package is wound around the hollow intermediate section, the top cover plate and the second cover plate are installed, and the circular tube openings at the ends of the hollow tube are curled outward for sealing, so that the top cover plate 60 and the bottom cover plate 70 can be connected through the hollow tube, and the core package 20 is pressed and fixed between the top cover plate and the bottom cover plate.

[0057] Refer to Figure 16 、 18As shown, in some embodiments, the top cover plate 60 includes a cover plate body 601, an outer sealing rubber ring 602, an inner sealing rubber ring 603, and an insulating sleeve 604; wherein, the cover plate body 601 is made of metal, and in the embodiments of the present invention, the material of the cover plate body 601 is aluminum; the cover plate body 601 is provided with a hollow through hole. The cover plate body 601 includes a bottom surface 6010 received in the insulating sleeve 604 and a top surface 6011 in contact with the outside. Among them, a circular annular stop portion 6012 is provided on the surface of the circular body between the top surface and the bottom surface. During installation, the annular stop portion stops at the waist position at one end of the housing 10, and the outer sealing rubber ring 602 is placed on the outer surface of the stop portion. A stop portion 6013 is provided in the hollow through hole, and the inner sealing rubber ring 603 is placed on the stop portion 6013. When the top cover plate 60 is installed at one end of the housing 10, one end of the housing 10 is curled inward to buckle the outer sealing rubber ring 602, so as to seal the top cover plate at one end of the housing. The insulating sleeve is provided with an insulating tube 6041, and the insulating tube 6041 cooperates with the annular groove section 302 of the hollow tube 30. The length of the hollow through hole is equal to the length of the insulating tube, its aperture is adapted to the outer diameter of the insulating tube, and the outer diameter of the insulating tube is adapted to the outer diameter of the annular groove section 302 of the hollow tube 30. Designed in this way, after the top cover plate 60 is installed at the end of the hollow tube, the annular groove section of the hollow tube is tightly fitted with the insulating tube, and by curling the end of the hollow tube outward to buckle the inner sealing rubber ring of the top cover plate, the cover plate and the hollow tube are firmly connected together, and insulation between the top cover plate and the hollow tube is achieved.

[0058] Referring to Figure 17 , Figure 18 As shown, the bottom cover plate 70 includes a bottom cover plate body 701, an inner sealing rubber gasket 702, an outer sealing rubber gasket 703, and an inner insulating ring 704. Among them, the bottom cover plate body 701 is provided with a hollow through hole structure. The bottom cover plate body 701 includes a circular base 7010 and a sleeve 7011 protruding from the circular base 7010; the hollow through hole structure includes a threaded hole 7012 formed inside the sleeve 7011 and a first through hole and a second through hole coaxially communicating with the threaded hole 7012; wherein, the threaded hole 7012 and Figures 1 - 10It is adapted to the threaded post 4011 on the cover body of the first cover plate 40 in the embodiment, that is, the inner diameter of the threaded hole on the cover body 701 of the bottom cover plate 70 is adapted to the outer diameter of the threaded post 4011 of the cover body 401 of the first cover plate 40, so that the threaded post 4011 of the cover body 401 of the first cover plate 40 can be screwed into the sleeve 7011 of the bottom cover body. Among them, the inner diameters of the threaded hole, the first through hole and the second through hole are different from each other, so that a first stop portion 7013 and a second stop portion 7014 are formed in the hollow through hole structure. The outer diameter of the sleeve of the bottom cover body is smaller than the outer diameter of the base, so that an annular table surface 7015 is formed on the base. A convex rib 7016 is provided on the bottom surface of the base, so that when the bottom cover plate is installed at one end of the housing, a certain elastic force can be generated by the convex rib to make the cover plate installation more firm. The outer diameter of the inner sealing ring gasket is the same as the inner diameter of the second through hole, so that the inner sealing ring gasket 702 can be placed at the position of the first stop portion 7013; the inner diameter of the outer sealing rubber ring gasket 703 is the same as the outer diameter of the sleeve, so that the outer sealing rubber ring gasket 703 can be sleeved on the surface of the sleeve 7011 and placed on the annular table surface 7015 of the base. The inner diameter of the first through hole is adapted to the outer diameter of the annular groove section of the hollow tube, and the inner diameter of the inner insulating ring is adapted to the outer diameter of the annular groove section of the hollow tube, so that the inner insulating sleeve is sleeved on one end of the annular groove section of the hollow tube close to the core package, so as to realize the insulation of the bottom cover plate. With such a design, after the bottom cover plate is installed at the other end of the hollow tube, the annular groove section of the hollow tube is tightly matched with the inner insulating ring 704, and by curling the end of the hollow tube outwards to buckle the inner sealing rubber ring gasket of the bottom cover plate, the cover plate and the hollow tube are firmly connected together. When the bottom cover plate is installed at the other end of the housing, the other end of the housing is curled inwards to buckle the outer sealing rubber ring gasket, so as to seal the bottom cover plate at the other end of the housing. In some embodiments, the top cover plate is the positive electrode and the bottom cover plate is the negative electrode.

[0059] Specifically, after the core package 20 is wound, the hollow tube 30 is inserted into the through hole of the core package. The middle section of the hollow tube is placed in the through hole of the core package, and the top cover plate 60 and the bottom cover plate 70 are respectively installed at both ends of the hollow tube. The annular groove sections at both ends of the hollow tube are respectively matched with the small through holes in the main body of the top cover plate and the second through holes in the main body of the bottom cover plate. The ends of the hollow tube are respectively curled outward to buckle the inner sealing rubber rings of the top cover plate and the inner sealing rubber ring pads of the bottom cover plate, so as to fix the core package between the top cover plate and the bottom cover plate; install the outer shell, and waist the two ends of the outer shell respectively to fix the core package, and then curl the openings of the outer shell at both ends inward respectively to buckle the outer sealing rubber rings of the top cover plate and the outer sealing rubber ring pads of the bottom cover plate, thus completing the encapsulation of the capacitor monomer. Wherein, one end of the capacitor monomer is the top cover plate, and the threaded post of the top cover plate protrudes from the surface of the outer shell. The other end of the capacitor monomer is the bottom cover plate, and the threaded sleeve of the bottom cover plate protrudes from the surface of the outer shell. The capacitor monomer of the present invention is convenient for expansion and integrated installation. Refer to Figure 19 , Figure 20 as shown in Figure 19 . In Figure 20 , multiple capacitor monomers 100 can be installed together through two mounting plates 200, so as to obtain a super capacitor with a large capacity;

[0060] It should be noted that the capacitor monomers in Figures 1 - 14 the embodiment can also be integrated and installed with the capacitor monomers in Figures 15 - 18 to expand the capacitor monomers. The specific expansion refers to the description in Figures 1 - 14 the embodiment and will not be elaborated here.

[0061] It can be understood that the above content is a further detailed description of the present invention in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the creative concept of the present invention, several alternatives or modifications can be made to these described embodiments, and these alternative or modified methods should all be regarded as belonging to the protection scope of this patent. In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention.

[0062] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and alterations can be made herein without departing from the scope defined by the appended claims.

[0063] In addition, the scope of the present invention is not limited only to the specific embodiments of the processes, machines, manufactures, compositions of matter, means, methods, and steps described in the specification. Those of ordinary skill in the art will readily understand that the above disclosures, processes, machines, manufactures, compositions of matter, means, methods, or steps currently existing or to be developed later that perform substantially the same functions or achieve substantially the same results as the corresponding embodiments described herein can be utilized. Accordingly, the appended claims are intended to include within their scope these processes, machines, manufactures, compositions of matter, means, methods, or steps.

Claims

1. A hollow rotary-connection type supercapacitor, characterized in that: Comprising at least one capacitor cell, the capacitor cell includes a housing, a dielectric coated within the housing, a hollow tube, and a top cover plate and a bottom cover plate respectively installed at both ends of the housing; the top cover plate includes a cover plate body, an outer sealing rubber ring, an inner sealing rubber ring, and an insulating sleeve; wherein, the cover plate body is provided with a hollow through-hole, the cover plate body includes a bottom surface in contact with the core package and a top surface in contact with the outside, a circular annular stop portion is provided on the surface of the circular body between the top surface and the bottom surface, the annular stop portion stops at the waist position at one end of the housing, and the outer sealing rubber ring is placed on the outer surface of the stop portion; the bottom cover plate includes a bottom cover plate body, an inner sealing rubber ring gasket, an outer sealing rubber ring gasket, and an inner insulating ring; wherein, the bottom cover plate body is provided with a hollow through-hole structure, the bottom cover plate body includes a circular base and a sleeve protruding from the circular base; wherein, the dielectric is provided with a hollow structure, and the hollow tube is installed at the hollow position of the dielectric; the dielectric is a core package, the core package is provided with a through-hole penetrating through the center, the hollow tube includes an intermediate section, annular groove sections provided at both ends of the intermediate section, and crimping structures provided at both ends of the hollow tube; wherein, the intermediate section is installed in the through-hole of the core package, the annular groove sections and the crimping structures protrude from both ends of the core package, and the crimping structures at both ends of the hollow tube respectively extend into the top cover plate and the bottom cover plate to be fixedly connected with the top cover plate and the bottom cover plate, so as to fixedly connect the core package, and the top cover plate and the bottom cover plate together; the insulating sleeve is provided with an insulating tube, the insulating tube cooperates with the annular groove section of the hollow tube, the length of the hollow through-hole is equal to the length of the insulating tube, and its inner diameter is adapted to the outer diameter of the insulating tube; a threaded sleeve structure is provided on the bottom cover plate, and a threaded post structure is provided on the top cover plate, and they are connected through the threaded sleeve structure and the threaded post of another capacitor cell to obtain a super capacitor with a large capacity.

2. The hollow rotary-connection type supercapacitor according to claim 1, characterized in that: The housing is provided with through-holes penetrating through both ends, and the through-holes form housing openings of the same size at both ends of the housing. Wherein, a waist structure is provided at a position on the outer surface of the housing close to the housing openings at both ends for fixing the core package.

3. The hollow rotary-connection type supercapacitor according to claim 2, characterized in that: The core package includes an electrolytic paper layer, an anode foil, and a cathode foil; the electrolytic paper layer, the anode foil, and the cathode foil are configured to be wound to form a core package with a through-hole penetrating through the center.

4. The hollow rotary-connection type supercapacitor according to claim 3, characterized in that: A stop portion is provided in the hollow through-hole, and the inner sealing rubber ring is placed on the stop portion.

5. The hollow rotary-connection type supercapacitor according to claim 4, characterized in that: The hollow through-hole structure includes a threaded hole formed inside the sleeve and a first through-hole and a second through-hole coaxially penetrating the threaded hole.

6. The hollow rotary-connection type supercapacitor according to claim 5, characterized in that: The inner diameters of the threaded hole, the first through-hole, and the second through-hole are different from each other, so as to form a first stop portion and a second stop portion in the hollow through-hole structure.

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