A supercapacitor

Abstract

This utility model discloses a supercapacitor, comprising an outer aluminum shell, at least two capacitor modules installed within the outer aluminum shell, and a cover plate for encapsulating the capacitor modules within the outer aluminum shell. Each capacitor module includes a core, an inner aluminum shell, a sealing cover for encapsulating the core within the inner aluminum shell, and lead terminals. The lead terminals include a positive lead terminal and a negative lead terminal. The cover plate is provided with a conductive structure, through which the positive lead terminal of one capacitor module and the negative lead terminal of the other capacitor module are simultaneously connected. This utility model's supercapacitor has a simple structure, low production cost, and is convenient, safe, and reliable in subsequent maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of electronic device technology, and in particular relates to a supercapacitor. Background Technology

[0002] With the increasing demand for energy storage applications and the popularization of new energy vehicles, traditional capacitors are finding it difficult to meet the needs of these emerging fields, making the demand for large-capacity supercapacitors particularly important.

[0003] Secondly, the application environment of supercapacitors is extremely complex. For example, when used in outdoor energy storage, they need to cope with various harsh environments; while when used in new energy vehicles, on-board supercapacitors need to cope with the complex conditions such as vehicle bumps and vibrations; and traditional capacitors can hardly meet the requirements of adapting to these complex application scenarios.

[0004] Currently, some supercapacitors have emerged, but these supercapacitors have very complex structures, high production costs, and many shortcomings in terms of performance, maintenance, and safety.

[0005] The above background information is provided only to aid in understanding the inventive concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0006] The purpose of this invention is to provide a supercapacitor to solve at least one of the problems mentioned in the background section.

[0007] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0008] A supercapacitor includes an outer aluminum shell, at least two capacitor modules mounted inside the outer aluminum shell, and a cover plate for encapsulating the capacitor modules inside the outer aluminum shell; wherein, the capacitor module includes a core package, an inner aluminum shell, a sealing cover for encapsulating the core package inside the inner aluminum shell, and lead terminals; the lead terminals include a positive lead terminal and a negative lead terminal, and the cover plate is provided with a conductive structure, wherein the positive lead terminal of one capacitor module and the negative lead terminal of the other capacitor module are simultaneously connected to the conductive structure.

[0009] In some embodiments, the outer aluminum shell is provided with a capacitor module receiving space, and the at least two capacitor modules are arranged in parallel to each other and placed in the capacitor module receiving space.

[0010] In some embodiments, thermally conductive silicone is filled between the outer aluminum shell and the inner aluminum shell of the capacitor module.

[0011] In some embodiments, a soft silicone material composed of colloidal particles with inherent resonant properties is injected between the outer aluminum shell and the inner aluminum shell of the capacitor module.

[0012] In some embodiments, an annular groove waist is provided on the inner aluminum shell of the capacitor module near the sealing cap; when silicone is filled between the outer aluminum shell and the inner aluminum shell of the capacitor module, the silicone fills the annular groove waist.

[0013] In some embodiments, the at least two capacitor modules are a first capacitor module and a second capacitor module, and the first capacitor module and the second capacitor module have the same structure.

[0014] In some embodiments, the outer diameter of the inner aluminum shell of the capacitor module is less than or equal to half the inner diameter of the outer aluminum shell.

[0015] In some embodiments, the surface of the cover plate is provided with an epoxy resin layer.

[0016] In some embodiments, a conductive ring is provided inside the cover plate, and the positive terminal of the first capacitor module and the negative terminal of the second capacitor module are symmetrically arranged on the conductive ring.

[0017] In some embodiments, the first capacitor module and the second capacitor module are arranged in parallel, and a gap is provided between the first capacitor module and the second capacitor module.

[0018] In some embodiments, the negative terminal of the first capacitor module serves as the negative terminal of the supercapacitor, and the positive terminal of the second capacitor module serves as the positive terminal of the supercapacitor.

[0019] The beneficial effects of this utility model's technical solution are:

[0020] Compared with existing technologies, the supercapacitor of this invention has a simple structure, low production cost, and is convenient, safe, and reliable in later maintenance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a three-dimensional schematic diagram of a supercapacitor according to an embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of a supercapacitor according to an embodiment of the present invention from another angle;

[0024] Figure 3 This is an exploded perspective view of a supercapacitor according to an embodiment of the present invention;

[0025] Figure 4 This is a three-dimensional exploded view of a supercapacitor according to an embodiment of the present invention from another angle;

[0026] Figure 5 This is a three-dimensional exploded view of a supercapacitor according to another embodiment of the present invention. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of the embodiments of this utility model clearer and more understandable, and to enable those skilled in the art to better understand the solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0028] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, "multiple" means two or more. Terms such as "installed," "connected," "joined," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Reference Figures 1-4 As shown in the figure, as an embodiment of the present invention, a supercapacitor 200 is provided, including an outer aluminum shell 20, at least two capacitor modules installed inside the outer aluminum shell 20, and a cover plate 30 for encapsulating the capacitor modules inside the outer aluminum shell 20; wherein, the capacitor module includes a core package, an inner aluminum shell 10, a sealing cover for encapsulating the core package inside the inner aluminum shell 10, and lead terminals 11; the lead terminals include a positive lead terminal 110 and a negative lead terminal 111, and a conductive structure 301 is provided on the cover plate, wherein the positive lead terminal 110 of one capacitor module and the negative lead terminal 111 of the other capacitor module are simultaneously connected to the conductive structure 301.

[0032] Reference Figure 2 , Figure 3 As shown, the outer aluminum shell 20 is provided with a capacitor module receiving space 201, and the at least two capacitor modules are arranged in parallel to each other and placed within the capacitor module receiving space 201. Specifically, refer to... Figures 2-4 As shown, in this embodiment of the invention, there are two capacitor modules: a first capacitor module 101 and a second capacitor module 102. The first capacitor module 101 and the second capacitor module 102 have identical structures. In some embodiments, the outer diameter of the inner aluminum shell of the capacitor module is less than or equal to half the inner diameter of the outer aluminum shell. The double-layer aluminum shell protection of the outer aluminum shell 20 and the inner aluminum shell 10 enhances the safety performance of the supercapacitor. Even if the inner aluminum shell 10 is opened, the leakage from the capacitor module will not flow onto the circuit board thanks to the protection of the outer aluminum shell 20, thus preventing corrosion of the circuit board. This also reduces the repair area and damage area of ​​the circuit board, making the damage to the entire device using the supercapacitor negligible and causing no environmental pollution.

[0033] In some embodiments, the capacitor module is placed inside the outer aluminum shell. Thermally conductive silicone is filled between the outer aluminum shell 20 and the inner aluminum shell 10 of the capacitor module. The filling of thermally conductive silicone ensures that there are no gaps between the capacitor module and the outer aluminum shell, preventing the capacitor module from shaking inside the outer aluminum shell. Furthermore, the thermally conductive silicone can reduce the temperature of the capacitor module and stabilize the temperature of the core during normal use. In special scenarios such as high temperature and high heat, it can effectively prevent the thermal shock of the core to the ambient temperature, helping the whole product using the supercapacitor to pass through high temperature periods or high temperature environments.

[0034] In some embodiments, a soft silicone material composed of colloidal particles with inherent resonance characteristics is injected between the outer aluminum shell 20 and the inner aluminum shell 10 of the capacitor module. This prevents the supercapacitor from resonating with the whole machine in vibration application scenarios, improves the vibration resistance of the supercapacitor, and ensures that the supercapacitor can be used in whole machine products with severe vibration, such as automobiles.

[0035] Reference Figure 5 As shown, in some embodiments, an annular groove waist 103 is provided on the inner aluminum shell 10 of the capacitor module near the sealing cover; when silicone is filled between the outer aluminum shell and the inner aluminum shell of the capacitor module, the silicone fills the annular groove waist 103, thereby stably installing the capacitor module inside the outer aluminum shell.

[0036] Reference Figures 3-4 As shown, a conductive ring 301 is provided inside the cover plate 30. The positive terminal 110 of the first capacitor module 101 and the negative terminal 111 of the second capacitor module 102 are symmetrically arranged on the conductive ring. The negative terminal 111 of the first capacitor module 101 serves as the negative terminal of the supercapacitor, and the positive terminal 110 of the second capacitor module 102 serves as the positive terminal of the supercapacitor. In some embodiments, an epoxy resin layer is provided on the surface of the cover plate. By providing an epoxy resin layer, the electrical insulation performance of the cover plate is greatly improved, and the strength of the cover plate is also increased.

[0037] In some embodiments, the first capacitor module 101 and the second capacitor module 102 are arranged in parallel, with a gap between them. This arrangement prevents direct contact between the first capacitor module 101 and the second capacitor module 102, which could lead to collisions or damage to the other capacitor module due to the explosion of one of the capacitor modules.

[0038] This invention increases the capacity of a capacitor by combining at least two capacitor modules, and greatly improves the safety performance of the supercapacitor through a two-layer aluminum shell structure. Even if the inner aluminum shell valve is opened, the leakage of the capacitor module will not flow onto the circuit board due to the protection of the outer aluminum shell, thus avoiding leakage corrosion of the circuit board. At the same time, it also reduces the repair area and damage area of ​​the circuit board. The damage to the whole machine using the supercapacitor is almost negligible and will not cause environmental pollution.

[0039] It is understood that the above description is a further detailed explanation of the present invention in conjunction with specific / preferred embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the inventive concept, and all such substitutions or modifications should be considered within the scope of protection of this patent. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention.

[0040] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of different embodiments or examples, without contradiction. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and modifications can be made herein without departing from the scope defined by the appended claims.

[0041] Furthermore, the scope of this invention is not intended to be limited to the specific embodiments of the processes, machines, manufactures, material compositions, means, methods, and steps described in the specification. Those skilled in the art will readily understand that existing or later-developed disclosures, processes, machines, manufactures, material compositions, means, methods, or steps that perform substantially the same function as the corresponding embodiments described herein or obtain substantially the same results as the embodiments described herein can be utilized. Therefore, the appended claims are intended to include such processes, machines, manufactures, material compositions, means, methods, or steps within their scope.

Claims

1. A supercapacitor, characterized in that: The device includes an outer aluminum shell, at least two capacitor modules installed within the outer aluminum shell, and a cover plate for encapsulating the capacitor modules within the outer aluminum shell. Each capacitor module includes a core package, an inner aluminum shell, a sealing cover for encapsulating the core package within the inner aluminum shell, and lead-out terminals. The lead-out terminals include a positive lead-out terminal and a negative lead-out terminal. A conductive structure is provided on the cover plate, and the positive lead-out terminal of one capacitor module and the negative lead-out terminal of the other capacitor module are simultaneously connected to the conductive structure.

2. The supercapacitor as described in claim 1, characterized in that: The outer aluminum shell is provided with a capacitor module receiving space, and the at least two capacitor modules are arranged in parallel to each other and placed in the capacitor module receiving space.

3. The supercapacitor as described in claim 1, characterized in that: Thermally conductive silicone is used to fill the space between the outer aluminum shell and the inner aluminum shell of the capacitor module.

4. The supercapacitor as described in claim 1, characterized in that: The space between the outer aluminum shell and the inner aluminum shell of the capacitor module is filled with soft silicone composed of colloidal particles with inherent resonant properties.

5. The supercapacitor as described in claim 3 or 4, characterized in that: An annular groove is provided on the inner aluminum shell of the capacitor module near the sealing cap; when silicone is filled between the outer aluminum shell and the inner aluminum shell of the capacitor module, the silicone fills the annular groove.

6. The supercapacitor as described in claim 1, characterized in that: The at least two capacitor modules are a first capacitor module and a second capacitor module, and the first capacitor module and the second capacitor module have the same structure.

7. The supercapacitor as described in claim 1, characterized in that: The outer diameter of the inner aluminum shell of the capacitor module is less than or equal to half the inner diameter of the outer aluminum shell.

8. The supercapacitor as described in claim 1, characterized in that: The surface of the cover plate is provided with an epoxy resin layer.

9. The supercapacitor as described in claim 6, characterized in that: A conductive ring is provided inside the cover plate, and the positive terminal of the first capacitor module and the negative terminal of the second capacitor module are symmetrically arranged on the conductive ring.

10. The supercapacitor as described in claim 6, characterized in that: The first capacitor module and the second capacitor module are arranged in parallel, and a gap is provided between the first capacitor module and the second capacitor module.

11. The supercapacitor as described in claim 6, characterized in that: The negative terminal of the first capacitor module serves as the negative terminal of the supercapacitor, and the positive terminal of the second capacitor module serves as the positive terminal of the supercapacitor.

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