Self-assembly solid hydrogen storage and heat conduction structure

Abstract

The utility model discloses a self-assembly solid hydrogen storage and heat conduction structure which comprises a narrow-mouth hydrogen storage bottle. A guide pipe is inserted into the central position of the narrow-mouth hydrogen storage bottle; a plurality of self-assembly shape memory units with umbrella-shaped structures are mounted on the conduit at intervals; the self-assembly shape memory unit comprises a framework, a film and a core hole; the core hole is formed in the center of the framework, and the size of the core hole is matched with that of the conduit; the thin film is covered between the frameworks; layered filling of hydrogen storage alloy powder can be achieved through the self-assembly shape memory unit, accurate regulation and control and expansion control of the powder loading capacity in a local area can be achieved through layered filling, and the problem that a powder bed is not uniform after repeated hydrogen absorption and desorption is solved; a heat conduction structure in the narrow-mouth hydrogen storage bottle can also be realized, heat generated in the hydrogen absorption or hydrogen desorption process of the hydrogen storage alloy is brought in or led out by the guide pipe through a heat conduction medium, and each layer of opened self-assembly shape memory unit is made of aluminum foil, so that the radial heat conduction effect of the powder bed can be enhanced, and uniform heat conduction of the narrow-mouth hydrogen storage bottle is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen storage equipment, specifically to a self-assembled solid-state hydrogen storage heat-conducting structure. Background Technology

[0002] The narrow-neck hydrogen storage cylinders in existing solid-state hydrogen storage devices are subject to significant limitations in the design of their internal heat conduction structure due to the small size of the top opening and the limitation that the filling material (hydrogen storage alloy powder) can only be supplied from the top. Furthermore, during the use of solid-state narrow-neck hydrogen storage cylinders, the hydrogen storage alloy powder is prone to secondary pulverization, expansion, and sedimentation as it repeatedly absorbs and releases hydrogen. This can lead to problems such as fine powder clogging the pores, cylinder deformation and cracking, affecting the performance of the narrow-neck hydrogen storage cylinder and even causing safety issues.

[0003] To address this issue, existing technologies typically involve adding a certain proportion of expanded graphite to the hydrogen storage alloy powder to mitigate the expansion problem caused by hydrogen absorption and desorption. Adding graphite can also improve the thermal conductivity of the powder inside the bottle to some extent. In addition, the problem of powder clogging the pores can be solved by adding a straight gas guide tube into the bottle. However, none of the above methods can solve the problems of the thermal conductivity structure of the narrow-mouth hydrogen storage bottle and the unevenness of the powder.

[0004] Based on the aforementioned existing problems, after thorough comparison and demonstration, our company proposed corresponding equipment technical modifications and developed a self-assembly solid hydrogen storage and heat conduction structure. Utility Model Content

[0005] The purpose of this invention is to provide a self-assembled solid hydrogen storage thermal conductive structure to solve the problems of thermal conductive structure and uneven powder in narrow-mouth hydrogen storage bottles.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a self-assembled solid hydrogen storage and heat conduction structure, including a narrow-mouth hydrogen storage bottle;

[0007] A conduit is inserted into the center of the narrow-mouth hydrogen storage cylinder;

[0008] Multiple umbrella-shaped self-assembly shape memory units are spaced apart on the duct.

[0009] The self-assembly shape memory unit includes a skeleton, a thin film, and a core hole;

[0010] The core hole is located at the center of the skeleton, and its size is matched with the conduit.

[0011] The thin film is covered between the skeletons.

[0012] In a preferred embodiment, the conduit is a single-tube, double-tube, or multi-tube structure that combines the functions of heat-conducting medium circulation and gas conduction.

[0013] In a preferred embodiment, the skeleton is made of shape memory alloy wire.

[0014] In a preferred embodiment, the film is aluminum foil.

[0015] In a preferred embodiment, the self-assembling shape memory unit includes a collapsed state and an expanded state.

[0016] In a preferred embodiment, the self-assembled shape memory unit has a circular shape in its unfolded state, which matches the inner diameter of the narrow-mouth hydrogen storage bottle.

[0017] Due to the application of the above technical solution, the beneficial effects of this application compared with the prior art are as follows:

[0018] This application discloses a self-assembled solid-state hydrogen storage thermal conductive structure. A conduit is inserted at the center of a narrow-mouth hydrogen storage cylinder, and multiple umbrella-shaped self-assembled shape memory units are spaced apart on the conduit. These self-assembled shape memory units utilize the shape memory effect to fold and open, enabling layered loading of hydrogen storage alloy powder. Layered loading allows for precise control of the powder loading and expansion within a local area, improving the unevenness of the powder bed after repeated hydrogen absorption and desorption. It also provides a thermal conductive structure within the narrow-mouth hydrogen storage cylinder. The conduit carries in or out the heat generated by the hydrogen storage alloy during hydrogen absorption or desorption through a thermally conductive medium. Each open layer of the self-assembled shape memory unit is made of aluminum foil, enhancing the radial thermal conductivity of the powder bed and achieving uniform heat conduction in the narrow-mouth hydrogen storage cylinder. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Appendix Figure 1 This is a schematic diagram of the self-assembled solid hydrogen storage and heat conduction structure of this utility model.

[0021] Appendix Figure 2 This is a schematic diagram of the structure of the self-assembly shape memory unit of this utility model;

[0022] Appendix Figure 3 This is an assembly diagram of the self-assembled solid hydrogen storage and heat conduction structure of this utility model.

[0023] The components include: 1. Narrow-mouth hydrogen storage cylinder; 2. Conduit; 3. Self-assembled shape memory unit; 4. Framework; 5. Thin film; 6. Core hole. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0027] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0028] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Example 1

[0031] Appendix Figure 1 and Figure 2 The present invention provides a self-assembled solid-state hydrogen storage and heat-conducting structure, comprising a narrow-mouth hydrogen storage bottle 1.

[0032] A conduit 2 is inserted into the center of the narrow-mouth hydrogen storage bottle 1; the conduit 2 is a single-tube, double-tube, or multi-tube structure that has both heat-conducting medium circulation and gas-conducting functions.

[0033] Multiple umbrella-shaped self-assembly shape memory units 3 are installed at intervals on the conduit 2;

[0034] The self-assembly shape memory unit 3 includes a skeleton 4, a thin film 5, and a core hole 6;

[0035] The core hole 6 is located at the center of the skeleton 4, and its size is matched with the conduit 2;

[0036] The skeleton 4 is made of shape memory alloy wire;

[0037] The frame 4 is covered with the film 5, which is aluminum foil.

[0038] The self-assembly shape memory unit 3 includes a collapsed state and an unfolded state; the unfolded shape of the self-assembly shape memory unit 3 is circular, matching the inner diameter of the narrow-mouth hydrogen storage bottle 1.

[0039] For specific usage instructions, please refer to the attached document. Figure 3 As shown, follow these steps:

[0040] (1) First, insert a conduit 2 into the center of the narrow-mouth hydrogen storage bottle 1. This conduit 2 can be a single tube, double tube or multi-tube structure, which has both heat transfer medium circulation and gas conduction functions.

[0041] (2) Fill a certain amount of hydrogen storage alloy powder into the narrow-mouth hydrogen storage bottle 1 and compact it;

[0042] (3) A self-assembled shape memory unit 3 is inserted into the conduit 2. Its structure is an "umbrella" shape. The size of the core hole 6 matches the conduit 2. The shape memory alloy wire is the skeleton 4. The skeleton 4 is covered with aluminum foil. When inserted from the top, the self-assembled shape memory unit 3 is in the folded state.

[0043] (4) Heat the self-assembled shape memory unit 3 to the transition point to make it unfold. The unfolded shape is circular and covers the hydrogen storage alloy powder filled in the previous layer.

[0044] (5) Repeat steps (2)-(4) until the powder filling is complete.

[0045] This application discloses a self-assembled solid-state hydrogen storage thermal conductive structure. A conduit 2 is inserted at the center of a narrow-mouth hydrogen storage bottle 1, and multiple umbrella-shaped self-assembled shape memory units 3 are spaced apart on the conduit 2. These self-assembled shape memory units 3 utilize shape memory effect to fold and open, enabling layered loading of hydrogen storage alloy powder. Layered loading allows for precise control of powder loading and expansion within a local area, improving the unevenness of the powder bed after repeated hydrogen absorption and desorption. It also establishes a thermal conductive structure within the narrow-mouth hydrogen storage bottle 1. The conduit 2 carries in or out the heat generated by the hydrogen storage alloy during hydrogen absorption or desorption through a thermally conductive medium. Each open layer of the self-assembled shape memory unit 3 is made of aluminum foil, enhancing the radial thermal conductivity of the powder bed and achieving uniform heat conduction in the narrow-mouth hydrogen storage bottle 1.

[0046] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-assembled solid-state hydrogen storage and thermal conductivity structure, characterized in that: Including narrow-mouth hydrogen storage cylinders; A conduit is inserted into the center of the narrow-mouth hydrogen storage cylinder; Multiple umbrella-shaped self-assembly shape memory units are spaced apart on the duct. The self-assembly shape memory unit includes a skeleton, a thin film, and a core hole; The core hole is located at the center of the skeleton, and its size is matched with the conduit. The thin film is covered between the skeletons.

2. The self-assembled solid-state hydrogen storage and thermal conductivity structure as described in claim 1, characterized in that: The conduit is a single-tube, double-tube, or multi-tube structure that combines the functions of heat transfer medium circulation and gas conduction.

3. The self-assembled solid-state hydrogen storage and thermal conductivity structure as described in claim 1, characterized in that: The skeleton is made of shape memory alloy wire.

4. The self-assembled solid-state hydrogen storage and thermal conductivity structure as described in claim 1, characterized in that: The film is aluminum foil.

5. The self-assembled solid-state hydrogen storage and thermal conductivity structure as described in claim 1, characterized in that: The self-assembly shape memory unit includes a collapsed state and an expanded state.

6. The self-assembled solid-state hydrogen storage and thermal conductivity structure as described in claim 5, characterized in that: The self-assembled shape memory unit has a circular shape in its unfolded state, which matches the inner diameter of the narrow-mouth hydrogen storage bottle.

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