Heat storage device

Abstract

The utility model relates to a heat storage device, which comprises a shell, a first heat exchanger, a second heat exchanger, a first heat exchanger, a second heat exchanger, a first heat exchanger and a second heat exchanger, the shell is provided with an inner cavity for accommodating phase-change materials, and the inner wall of the shell is provided with a first bulge structure and a first groove structure; the heating element is arranged on the outer wall of the shell; the heat conduction assembly comprises a first heat conduction rib and multiple groups of second heat conduction ribs, the two ends of the first heat conduction rib are connected with the inner wall of the shell, the multiple groups of second heat conduction ribs are arranged on the first heat conduction rib at intervals in the length direction of the first heat conduction rib, and the multiple second heat conduction ribs of each group of second heat conduction ribs are evenly arranged at intervals in the circumferential direction of the first heat conduction rib. According to the heat storage device, on one hand, the heat exchange uniformity and the heat exchange efficiency between the heat storage device and the phase-change material are ensured by utilizing the matching of the first heat conduction ribs and the second heat conduction ribs, and on the other hand, the first convex structures and the first groove structures are arranged on the inner wall of the shell; the contact area between the inner wall of the shell and the phase change material in the shell is increased, and the heat exchange efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat storage plate heat dissipation technical field especially relates to a heat storage device. BACKGROUND

[0002] Because solid-liquid phase change material can absorb a large amount of latent heat and keep temperature relatively stable in the melting process, it is well applied in the field of heat control. Among them, the heat storage device used for heat exchange with phase change material is generally first used to transmit heat to the shell of the heat storage device by using the heating element, and then the phase change material filled in the shell of the heat storage device is absorbed.

[0003] But the existing heat storage device, because its shell is only provided with several dispersed heat conduction parts, the heat exchange between the shell and the phase change material is not uniform and the heat exchange efficiency is low, so that the phase change material takes a long time to melt.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this part aims to provide background or context for the technical solutions of the invention stated in the claims. The description herein is not admitted as prior art because it is included in this part. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the utility model is to provide a heat storage device to improve the heat exchange uniformity and heat exchange efficiency between the heat storage device and the phase change material.

[0007] According to the utility model provides a kind of heat storage device, comprising:

[0008] Shell, the shell has inner cavity for containing phase change material, first protruding structure and first recess structure are arranged on the inner wall of the shell;

[0009] Heating element, which is arranged on the outer wall of the shell;

[0010] Heat conduction assembly, including first heat conduction rib and multiple second heat conduction ribs, both ends of the first heat conduction rib are connected to the inner wall of the shell, the multiple second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib, and multiple second heat conduction ribs of each group of second heat conduction ribs are uniformly and spaced arranged along the circumference of the first heat conduction rib.

[0011] Preferably, the second heat conduction rib is provided with multiple third heat conduction ribs, the multiple third heat conduction ribs are arranged along the length direction of the second heat conduction rib, and multiple third heat conduction ribs of each group of third heat conduction ribs are uniformly and spaced arranged along the circumference of the second heat conduction rib.

[0012] Preferably, the first heat-conducting rib and the second heat-conducting rib are in a cylindrical shape, and the diameter of the second heat-conducting rib is smaller than that of the first heat-conducting rib.

[0013] Preferably, the third heat-conducting rib is in a cylindrical shape, and the diameter of the third heat-conducting rib is smaller than that of the second heat-conducting rib.

[0014] Preferably, one end of the second heat-conducting rib, which is away from the first heat-conducting rib, is connected to the inner wall of the shell.

[0015] Preferably, the heating element is arranged opposite to one end of the first heat-conducting rib.

[0016] Preferably, the first protruding structure is provided in multiple groups, and the multiple groups of the first protruding structure are arranged at intervals in a first direction, and the multiple first protruding structures in each group of the first protruding structure are arranged at intervals in a second direction.

[0017] The first recessed structure is provided in multiple groups, and the multiple groups of the first recessed structure are arranged at intervals in a first direction, and the multiple first recessed structures in each group of the first recessed structure are arranged at intervals in a second direction.

[0018] In the first direction, at least one group of the first recessed structure is arranged between two adjacent groups of the first protruding structure.

[0019] The first direction and the second direction are arranged at an angle, and are both perpendicular to the vertical direction of the inner wall of the shell where the first protruding structure and the first recessed structure are located.

[0020] Preferably, the first protruding structure is in a spherical shape, a rectangular shape, or a fluff shape.

[0021] Preferably, the heating element and the heat-conducting assembly are both provided in multiple groups, and the multiple heating elements are arranged at intervals on the outer wall of the shell, and the first heat-conducting ribs of the multiple heat-conducting assemblies are arranged at intervals in the inner cavity of the shell.

[0022] The multiple heating elements and the multiple first heat-conducting ribs are arranged one-to-one opposite to each other.

[0023] Preferably, the first heat-conducting rib is provided with a second protruding structure and / or a second recessed structure.

[0024] The technical scheme provided by the utility model can have the following beneficial effects:

[0025] The utility model discloses a heat storage device, one, heat -generating element is set up on the outer wall of shell, and heat -conducting assembly is set up in the shell, and the heat -generating element passes through the shell and transmits heat to the first heat -conducting rib that is connected with the inner wall of shell, and then the first heat -conducting rib transmits heat to the second heat -conducting rib, realizes the heat exchange of phase change material in the cavity of shell with first heat -conducting rib and second heat -conducting rib, and the heat exchange uniformity and heat exchange efficiency between the inside of shell and phase change material are ensured, on the other hand, first convex structure and first recess structure are also set up on the inner wall of shell, to increase the contact area between the inner wall of shell and phase change material in the shell, and further improve the heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are incorporated into and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0027] Figure 1 The internal structure of the heat storage device in the utility model embodiment is shown Figure 1 ;

[0028] Figure 2 The external structure of the heat storage device in the utility model embodiment is shown

[0029] Figure 3 The internal structure of the heat storage device in the utility model embodiment is shown Figure 2 ;

[0030] Figure 4 The enlarged view of A in the utility model embodiment is shown Figure 3 ;

[0031] Figure 5 The simulation result schematic diagram of the change rule of the liquid volume fraction of phase change material with time in the utility model embodiment is shown

[0032] Figure 6 The simulation result schematic diagram of the maximum deformation of the heat storage device under different loads in the utility model embodiment is shown.

[0033] Reference signs: 100, shell;110, first convex structure;120, first recess structure;200, heat -generating element;300, heat -conducting assembly;310, first heat -conducting rib;320, second heat -conducting rib;330, third heat -conducting rib. DETAILED DESCRIPTION

[0034] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example implementations to those skilled in the art. The described features, structures, or characteristics can be combined in one or more implementations.

[0035] In addition, the accompanying drawings are included to provide a thorough understanding of the example implementations. The drawings included herein can show the designs and

[0036] In the present example implementation, a heat storage device is first provided, which, as shown in Figure 1 includes:

[0037] a housing 100 having an inner cavity for accommodating a phase change material, the inner wall of the housing 100 being provided with a first protruding structure 110 and a first recess structure 120;

[0038] a heating element 200 arranged on the outer wall of the housing 100;

[0039] a heat conduction assembly 300 including a first heat conduction rib 310 and a plurality of second heat conduction ribs 320, both ends of the first heat conduction rib 310 being connected to the inner wall of the housing 100, the plurality of second heat conduction ribs 320 being arranged on the first heat conduction rib 310 in the length direction of the first heat conduction rib 310, and the plurality of second heat conduction ribs 320 of each group of second heat conduction ribs 320 being arranged uniformly and spaced apart in the circumferential direction of the first heat conduction rib 310.

[0040] It should be understood that the housing 100 in the present embodiment is a closed structure having an inner cavity, the phase change material fills the inner cavity of the housing 100, and the heat can be transferred to the housing 100 by the heating element 200, and then the heat is transferred to the heat conduction assembly 300 by the housing 100.

[0041] It should also be understood that the housing 100 and the heat conduction assembly 300 can be made of metal, such as copper or aluminum, so that the housing 100 and the heat conduction assembly 300 have good heat conductivity.

[0042] By the above-mentioned heat storage device, on the one hand, by arranging the heating element 200 on the outer wall of the shell 100 and arranging the heat conducting assembly 300 in the shell 100, the heat of the heating element 200 is transmitted to the first heat conducting rib 310 connected to the inner wall of the shell 100 through the shell 100, and then the heat is transmitted to the plurality of second heat conducting ribs 320 through the first heat conducting rib 310, so as to realize heat exchange between the phase change material in the cavity of the shell 100 and the first heat conducting rib 310 and the second heat conducting rib 320, and ensure the uniformity and efficiency of heat exchange between the inside of the shell 100 and the phase change material. On the other hand, by arranging the first protruding structure 110 and the first recessed structure 120 on the inner wall of the shell 100, the contact area between the inner wall of the shell 100 and the phase change material in the shell 100 is increased, and the heat exchange efficiency is further improved.

[0043] In the following, the above-mentioned heat storage device in the present example embodiment will be described in more detail with reference to the accompanying drawings. Figures 1 to 4 The above-mentioned heat storage device in the present example embodiment will be described in more detail with reference to the accompanying drawings.

[0044] In one embodiment, as shown in FIG. 1, the second heat conducting rib 320 is connected to the inner wall of the shell 100 at one end away from the first heat conducting rib 310. By connecting the first heat conducting rib 310 to the inner wall of the shell 100, the first heat conducting rib 310 can directly exchange heat with the shell 100, thereby improving the heat exchange efficiency. Figure 1 In one embodiment, as shown in FIG. 1, the second heat conducting rib 320 is connected to the inner wall of the shell 100 at one end away from the first heat conducting rib 310. By connecting the first heat conducting rib 310 to the inner wall of the shell 100, the first heat conducting rib 310 can directly exchange heat with the shell 100, thereby improving the heat exchange efficiency.

[0045] By further arranging a plurality of third heat conducting ribs 330 on the second heat conducting rib 320, and spacing the plurality of third heat conducting ribs 330 along the length direction of the second heat conducting rib 320, and spacing the plurality of third heat conducting ribs 330 of each group of third heat conducting ribs 330 along the circumferential direction of the second heat conducting rib 320, the heat on the second heat conducting rib 320 is further transmitted to the third heat conducting rib 330, and heat exchange is performed between the third heat conducting rib 330 and the phase change material, thereby further improving the uniformity and efficiency of heat transfer between the heat conducting assembly 300 and the phase change material.

[0046] It should be noted that, according to the heat generation of the heating element 200 and the overall size of the heat storage device, a fourth heat conducting rib can be further arranged on the third heat conducting rib 330, thereby further improving the uniformity and efficiency of heat transfer between the heat conducting assembly 300 and the phase change material.

[0047] In one embodiment, as shown in FIG. 1, the second heat conducting rib 320 is connected to the inner wall of the shell 100 at one end away from the first heat conducting rib 310. By connecting the first heat conducting rib 310 to the inner wall of the shell 100, the first heat conducting rib 310 can directly exchange heat with the shell 100, thereby improving the heat exchange efficiency. Figure 1

[0048] ​In another embodiment, one end of the second heat-conducting rib 320 is located in the inner cavity of the shell 100 and is not connected to the inner wall of the shell 100.

[0049] In yet another embodiment, part of the first heat-conducting ribs 310 on the first heat-conducting rib 310 are connected to the inner wall of the shell 100, and another part of the first heat-conducting ribs 310 are not connected to the inner wall of the shell 100.

[0050] For example, the first heat-conducting rib 310 and the second heat-conducting rib 320 are in a cylindrical shape, and the diameter of the second heat-conducting rib 320 is smaller than the diameter of the first heat-conducting rib 310.

[0051] For example, the diameter of the third heat-conducting rib 330 is smaller than the diameter of the second heat-conducting rib 320.

[0052] By setting the diameters of the first heat-conducting rib 310, the second heat-conducting rib 320 and the third heat-conducting rib 330 to be gradually smaller, the contact areas of the first heat-conducting rib 310, the second heat-conducting rib 320 and the third heat-conducting rib 330 with the phase-change material are gradually reduced, which ensures the efficiency and amount of heat exchange between the first heat-conducting rib 310 closer to the heat-generating element 200 and the phase-change material, and further ensures that the phase-change material melts in a shorter time, thereby improving the service life and working efficiency of the heat-generating element 200 and the heat-conducting assembly 300.

[0053] It should be noted that the diameter of the first heat-conducting rib 310 closer to the heat-generating element 200 is set to be the largest, and the diameter of the third heat-conducting rib 330 farthest from the heat-generating element 200 is set to be the smallest, which not only ensures that the phase-change material melts in a shorter time and improves the service life and working efficiency of the heat-generating element 200 and the heat-conducting assembly 300, but also reduces the volume of the second heat-conducting rib 320 and the third heat-conducting rib 330 with a larger number, thereby filling more phase-change material in the inner cavity of the shell 100 and improving the heat storage capacity of the heat storage device.

[0054] It should also be noted that, as shown in Figure 1 and Figure 2 , the first heat-conducting rib 310, the second heat-conducting rib 320 and the third heat-conducting rib 330 are interlaced and supported in the inner cavity of the shell 100, which to some extent also has the effect of preventing the heat storage device from deforming and improving the structural strength of the heat storage device.

[0055] Optionally, as shown in Figure 3As shown in FIG. 1, the heating element 200 is arranged opposite to one end of the first heat-conducting rib 310. Such arrangement can shorten the heat conduction path between the heating element 200 and the first heat-conducting rib 310, so as to quickly transfer heat between the heating element 200 and the first heat-conducting rib 310.

[0056] In one embodiment, referring to Figure 3 and Figure 4 As shown in FIG. 1, the first protruding structure 110 is provided with multiple groups, and the multiple groups of the first protruding structure 110 are arranged in a first direction, and the multiple first protruding structures 110 in each group of the first protruding structure 110 are arranged in a second direction.

[0057] The first recessed structure 120 is provided with multiple groups, and the multiple groups of the first recessed structure 120 are arranged in the first direction, and the multiple first recessed structures 120 in each group of the first recessed structure 120 are arranged in the second direction.

[0058] In the first direction, at least one group of the first recessed structure 120 is arranged between two adjacent groups of the first protruding structure 110.

[0059] Wherein, the first direction and the second direction are arranged at an angle, and are both perpendicular to the vertical direction of the inner wall of the shell 100 where the first protruding structure 110 and the first recessed structure 120 are located, the first direction is as Figure 3 and Figure 4 the direction shown by the arrow ab, and the second direction is as Figure 3 and Figure 4 the direction shown by the arrow cd, and the vertical direction of the inner wall of the shell 100 is as Figure 3 and Figure 4 the direction shown by the arrow ef.

[0060] The above-mentioned multiple groups of the first protruding structure 110 and the multiple groups of the first recessed structure 120 are arranged on the inner wall of the shell 100, and the multiple groups of the first protruding structure 110 and the multiple groups of the first recessed structure 120 are arranged alternately in the first direction, which can strengthen the medium flow process of the phase change material in the solid-liquid coexistence phase change process, improve the heat transfer coefficient between the shell 100 and the phase change material, and increase the contact area between the shell 100 and the phase change material, and further reduce the time consumed by the phase change material melting.

[0061] Optionally, the first protruding structure 110 is in a spherical shape, a rectangular shape, or a fluff shape, which does not affect the fluidity of the phase change material in the shell 100, and can also increase the contact area between the inner wall of the shell 100 and the phase change material. Specifically, the first protruding structure 110 can be set to different shapes according to the heat distribution inside the shell 100, which is not limited in the embodiment.

[0062] Optionally, the shape of the first recessed structure 120 can be set to a spherical shape, a rectangular shape, or a fluff shape.

[0063] In one embodiment, reference Figure 3 As shown in , the heating element 200 and the heat-conducting assembly 300 are both provided with a plurality of heating elements 200, the plurality of heating elements 200 are spaced apart on the outer wall of the housing 100, and the first heat-conducting ribs 310 of the plurality of heat-conducting assemblies 300 are spaced apart in the inner cavity of the housing 100; wherein,

[0064] The plurality of heating elements 200 and the plurality of first thermal ribs 310 are arranged opposite to each other.

[0065] By providing a plurality of heating elements 200 and a plurality of heat-conducting components 300, the overall heat exchange efficiency and heat exchange capacity of the heat storage device can be improved, which is suitable for use scenarios where the phase change material has a larger specification.

[0066] In one embodiment, a second protrusion structure and / or a second groove structure are provided on the first thermal rib 310. Providing the second protrusion structure and / or the second groove structure on the first thermal rib 310 can also increase the contact area between the first thermal rib 310 and the phase change material within a limited space, thereby improving the heat exchange efficiency between the first thermal rib 310 and the phase change material.

[0067] It should be noted that, the second thermal conductive rib 320 and the third thermal conductive rib 330 may also be provided with a proper amount of second protrusion structures and / or second groove structures.

[0068] It should also be noted that the variation of the liquid phase volume fraction of the phase change material of the heat storage device provided by the present application over time during operation can be calculated by numerical simulation. Figure 4 Compared with the traditional heat storage structure having only a plurality of dispersed heat conducting members, the time required for the phase change material in the heat storage device provided by the present application to completely melt is 554.6 seconds, which significantly reduces the time consumed for the phase change material to melt.

[0069] It should also be noted that the maximum deformation of the heat storage device provided in this application under different loads can be calculated through numerical simulation. The calculation results are referenced to Figure 3 Figure 5 Figure 6 As shown in . A vertical downward force of 10-50N was applied to the top of the heat storage device, and the bottom of the heat storage device was set as a fixed constraint. Calculations showed that under different loads, the maximum deformation of the heat storage device provided by this application was smaller than that of traditional heat storage structures. Furthermore, the maximum deformation of the heat storage device provided by this application after being subjected to load was reduced by 3.8% compared to traditional heat storage structures.

[0070] It should be understood that the orientation or positional relationship indicated by terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" in the above description are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0071] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0072] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0073] In the embodiments of the present application, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0074] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like 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 application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the present specification.

[0075] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the application are indicated by the appended claims.

Claims

1. A heat storage device, characterized by, The application relates to a heat dissipation device. The heat dissipation device comprises a shell, a heating element and a heat conduction assembly. The shell has an inner cavity for containing a phase change material, and a first protruding structure and a first groove structure are arranged on the inner wall of the shell. The heating element is arranged on the outer wall of the shell.

2. The thermal storage device of claim 1, wherein, The heat conduction assembly comprises a first heat conduction rib and a plurality of groups of second heat conduction ribs.

3. The thermal storage device of claim 2, wherein, The two ends of the first heat conduction rib are connected to the inner wall of the shell.

4. The thermal storage device of claim 3, wherein, The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib.

5. The thermal storage device of claim 1, wherein, The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib.

6. The thermal storage device of claim 1, wherein, The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib.

7. The thermal storage device of claim 1, wherein, The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib.

8. The thermal storage device of claim 1, wherein, The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib.

9. The thermal storage device of any of claims 1-8, wherein, The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib.

10. The thermal storage device of any of claims 1-8, wherein, The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. The plurality of groups of second heat conduction ribs are arranged on the first heat conduction rib along the length direction of the first heat conduction rib. 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