energy storage device

Abstract

The utility model relates to the technical field of energy storage, specifically relates to a kind of energy storage device, comprising: shell, heat source component, heat conduction component, phase-change energy storage piece;The shell is provided with accommodating cavity inside, the phase-change energy storage piece is set in the accommodating cavity, the middle of the shell and / or the inner periphery of the shell is provided with heat source component, the heat conduction component is set in the accommodating cavity, the heat conduction component is used to heat transfer to the phase-change energy storage piece. Through the connection of heat conduction component and heat source component, so as to be able to heat source component heat through heat conduction component conduction to phase-change energy storage piece, for the phase-change energy storage piece energy storage being set in accommodating cavity, so as to be able to improve energy storage efficiency;Phase-change energy storage piece can also be applied to the equipment of heating, to make relevant equipment realize heating.

Description

Technical Field

[0001] This utility model relates to the field of energy storage, specifically to an energy storage device. Background Technology

[0002] A thermal storage device is a system that uses specific devices to store temporarily unused or excess heat through a certain heat storage material, and then releases it for use when needed. This type of system is used in heating systems, air conditioning systems, and other applications. However, currently, the heat storage efficiency of thermal storage devices is relatively low. Utility Model Content

[0003] Therefore, this utility model provides an energy storage device. The energy storage device can improve the energy storage efficiency of the energy storage component.

[0004] This utility model provides the following technical solution:

[0005] An energy storage device includes: a housing, a heat source assembly, a heat conduction assembly, and a phase change energy storage component;

[0006] The housing has a receiving cavity, the phase change energy storage device is disposed in the receiving cavity, a heat source assembly is disposed in the middle of the housing and / or the inner periphery of the housing, and a heat conduction assembly is disposed in the receiving cavity, the heat conduction assembly is used to transfer heat to the phase change energy storage device.

[0007] Furthermore, the heat source assembly includes: a first heat source and a second heat source;

[0008] The first heat source is disposed in the housing, and the second heat source is disposed on the inner periphery of the housing.

[0009] Furthermore, it also includes: multiple first baffles;

[0010] Multiple first baffles are spaced apart within the accommodating cavity, and two adjacent first baffles form an accommodating space for storing phase change energy storage devices; the heat-conducting component is disposed within the first baffle.

[0011] Furthermore, it also includes: a second baffle;

[0012] The second baffle is disposed in the accommodating cavity along the second direction, and the second baffle divides the first baffle into a first energy storage section and a second energy storage section; wherein, both the first energy storage section and the second energy storage section are used to store energy for the phase change energy storage device; the first heat source is disposed in the second baffle.

[0013] Furthermore, the heat-conducting component includes: at least one driving element;

[0014] The first baffle and / or the second baffle are provided with a plurality of hollowed-out portions, and the driving member is disposed in the accommodating cavity, and the driving member is used to drive the airflow in the accommodating cavity.

[0015] Furthermore, the heat-conducting component includes: a heat collector and a heat pipe;

[0016] The heat collector is connected to the first heat source and / or the second heat source, the heat collector is connected to the heat pipe, and the heat pipe is connected to the first baffle and / or the second baffle.

[0017] Furthermore, a medium cavity is provided around the side wall of the shell, and the first baffle has a first heat exchange cavity and a second heat exchange cavity. Both the first heat exchange cavity and the second heat exchange cavity are in communication with the medium cavity. A heat exchange medium is provided in the medium cavity, the first heat exchange cavity, and the second heat exchange cavity. The heat exchange medium is used to exchange heat with the phase change energy storage device.

[0018] Furthermore, it also includes: loop components;

[0019] The circulation component is disposed in the medium cavity and / or the first heat exchange cavity and the second heat exchange cavity, and the circulation component is used to drive the heat exchange medium in the medium cavity or the first heat exchange cavity and the second heat exchange cavity to circulate.

[0020] Furthermore, the heat exchange medium is a gas or a liquid.

[0021] Furthermore, it also includes: a heat insulation layer; the outer wall of the housing is provided with a heat insulation layer.

[0022] The energy storage device includes a shell with a accommodating cavity. A phase change energy storage component is disposed in the accommodating cavity. A heat source component is disposed in the middle or on the inner periphery of the shell. A heat source component is also disposed in the middle or on the inner periphery of the shell. A heat conduction component is disposed in the accommodating cavity and connected to the heat source component. In this way, the heat from the heat source component can be conducted to the phase change energy storage component through the heat conduction component to store energy for the phase change energy storage component disposed in the accommodating cavity. This can improve the energy storage efficiency of the energy storage device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments 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.

[0024] Figure 1 One of the cross-sectional views of the energy storage device provided in the embodiment of this utility model;

[0025] Figure 2 A second cross-sectional view of the energy storage device provided in an embodiment of this utility model;

[0026] Figure 3 Third cross-sectional view of the energy storage device provided in the embodiment of this utility model;

[0027] Figure 4 Fourth cross-sectional view of the energy storage device provided in the embodiment of this utility model;

[0028] Figure 5 Fifth cross-sectional view of the energy storage device provided in the embodiment of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-Energy storage device; 10-Shell; 11-Accommodation cavity; 12-Medium cavity; 20-Heat source assembly; 21-First heat source; 22-Second heat source; 30-Heat conduction assembly; 31-Heat collector; 32-Heat pipe; 40-Phase change energy storage device; 50-First baffle; 51-Accommodation space; 52-First heat exchange cavity; 53-Second heat exchange cavity; 54-First energy storage section; 55-Second energy storage section; 60-Second baffle; 70-Driver; 80-Circulation assembly; 90-Insulation layer. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. 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 includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0033] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] A thermal storage device is a system that uses specific devices to store temporarily unused or excess heat through a certain heat storage material, and then releases it for use when needed. This type of system is used in heating systems, air conditioning systems, and other applications. However, currently, the heat storage efficiency of thermal storage devices is relatively low.

[0035] Therefore, this embodiment provides an energy storage device. The energy storage device can improve the energy storage efficiency of the energy storage component.

[0036] Please see Figure 1 An energy storage device 100 includes: a housing 10, a heat source assembly 20, a heat conduction assembly 30, and a phase change energy storage component 40;

[0037] The housing 10 has a receiving cavity 11, the phase change energy storage device 40 is disposed in the receiving cavity 11, a heat source assembly 20 is disposed in the middle of the housing 10 and / or on the outer periphery of the housing 10, and a heat conduction assembly 30 is disposed in the receiving cavity 11, the heat conduction assembly 30 is used to transfer heat to the phase change energy storage device 40.

[0038] The energy storage device 100 includes a housing 10 with a accommodating cavity 11. A phase change energy storage component 40 is disposed in the accommodating cavity 11. A heat source component 20 is disposed in the middle or on the inner periphery of the housing 10. A heat source component 20 is also disposed in the middle or on the inner periphery of the housing 10. A heat conduction component 30 is disposed in the accommodating cavity 11 and is connected to the heat source component 20. In this way, the heat from the heat source component 20 can be conducted to the phase change energy storage component 40 through the heat conduction component 30 to store energy for the phase change energy storage component 40 disposed in the accommodating cavity 11. This improves the energy storage efficiency of the energy storage device 100.

[0039] Please see Figure 1 In some embodiments, the heat source assembly 20 includes: a first heat source 21 and a second heat source 22;

[0040] The first heat source 21 is disposed in the housing 10, and the second heat source 22 is disposed on the inner periphery of the housing 10.

[0041] Understandably, a first heat source 21 and a second heat source 22 are provided inside the housing 10. Specifically, the first heat source 21 is located in the middle of the housing 10, and the second heat source 22 is located on the inner periphery of the housing 10. In this way, the first heat source 21 can dissipate heat from the middle part of the housing 10 to the outside of the housing 10, and the second heat source 22 can dissipate heat from the inner periphery of the housing 10 to the middle part of the housing 10. Thus, the phase change energy storage device 40 can be heated simultaneously by the first heat source 21 and the second heat source 22 to improve the heat storage efficiency of the energy storage device 100.

[0042] Please see Figure 2 In some embodiments, it further includes: a plurality of first baffles 50;

[0043] Multiple first baffles 50 are spaced apart within the accommodating cavity 11, and two adjacent first baffles 50 form an accommodating space 51, which is used to store the phase change energy storage device 40; the heat conduction component 30 is disposed within the first baffles 50.

[0044] Understandably, the housing 10 is provided with multiple first baffles 50, which are spaced apart along a first direction. This divides the interior of the housing 10 into multiple elongated accommodating spaces 51, which are used to install energy storage components. This allows more phase change energy storage components 40 to be installed in the accommodating cavity 11. A heat-conducting component 30 is provided in the first baffle 50 to conduct heat to the first baffle 50. Then, the first baffle 50 provides heat to the phase change energy storage components 40 sandwiched between two adjacent first baffles 50. This allows more heat to be transferred to the energy storage components, enabling more heat to be transferred to the energy storage components from multiple directions, thereby improving the heating efficiency of energy storage.

[0045] Please see Figure 3 In some embodiments, it also includes: a second baffle 60;

[0046] The second baffle 60 is disposed in the accommodating cavity 11 along the second direction, and the second baffle 60 divides the first baffle 50 into a first energy storage section 54 and a second energy storage section 55; wherein, the first energy storage section 54 and the second energy storage section 55 are both used to store energy for the phase change energy storage device 40; the first heat source 21 is disposed in the second baffle 60.

[0047] Understandably, a second baffle 60 is also provided inside the accommodating cavity 11. The second baffle 60 is disposed in the accommodating cavity 11 along the second direction and is located at the center of the first baffle 50. In this way, the second baffle 60 can divide the first baffle 50 into a first energy storage section 54 and a second energy storage section 55. Energy storage components are provided in both the first energy storage section 54 and the second energy storage section 55, thereby increasing the number of energy storage components provided in the energy storage device 100. At the same time, the energy storage components in the first energy storage section 54 and the second energy storage section 55 can be heated by the first heat source 21 and the second heat source 22, so that the energy storage components in the first heat source 21 and the second heat source 22 can be heated in multiple directions, so that the energy storage components in the first energy storage section 54 and the second energy storage section 55 can be heated evenly, thereby improving the energy storage efficiency of the energy storage components.

[0048] Please see Figure 2 In some embodiments, the heat-conducting component 30 includes at least one drive element 70;

[0049] The first baffle 50 and / or the second baffle 60 are provided with a plurality of hollowed-out portions, and the driving member 70 is disposed in the accommodating cavity 11. The driving member 70 is used to drive the airflow in the accommodating cavity 11.

[0050] Understandably, both the first baffle 50 and the second baffle 60 are provided with multiple hollow sections. The hollow sections are to facilitate the flow of air in the accommodating cavity 11. In order to facilitate air flow, the phase change energy storage device 40 can be placed in the middle of the first baffle 50 and the second baffle 60 so that the airflow can pass through the hollow sections at both ends of the first baffle 50 and the second baffle 60. In order to improve the efficiency of airflow, a driving component 70 is also provided in the accommodating cavity 11. The driving component 70 drives the airflow to flow in the accommodating cavity 11 to increase the airflow convection speed in the accommodating cavity 11, thereby improving the energy storage effect of the energy storage device 100.

[0051] Please see Figure 4 In some embodiments, the heat-conducting component 30 includes: a heat collector 31 and a heat pipe 32;

[0052] The heat collector 31 is connected to the first heat source 21 and / or the second heat source 22, the heat collector 31 is connected to the heat pipe 32, and the heat pipe 32 is connected to the first baffle 50 and / or the second baffle 60.

[0053] Understandably, the heat-conducting component 30 includes: a heat collector 31 and a heat pipe 32. The heat pipe 32 is connected to the first support and the second support, and the heat pipe 32 can be connected to the first heat source 21 and the second heat source 22. In this way, the heat pipe 32 can absorb the heat from the first heat source 21 and the second heat source 22, and transfer the heat from the first heat source 21 and the second heat source 22 to the first baffle 50 and the second baffle 60 through the heat pipe 32. This allows the heat generated by the first heat source 21 and the second heat source 22 to be evenly distributed on the first baffle 50 and the second baffle 60, thereby enabling the phase change energy storage device 40 to better absorb heat, so as to ensure the stability and energy storage efficiency of the phase change energy storage device 40.

[0054] Please see Figure 5 In some embodiments, a medium cavity 12 is provided around the side wall of the housing 10. The first baffle 50 has a first heat exchange cavity 52 and a second heat exchange cavity 53. The first heat exchange cavity 52 and the second heat exchange cavity 53 are both connected to the medium cavity 12. A heat exchange medium is provided in the medium cavity 12, the first heat exchange cavity 52, and the second heat exchange cavity 53. The heat exchange medium is used to exchange heat with the phase change energy storage device 40.

[0055] Understandably, a medium cavity 12 is provided around the side wall of the shell 10, and a first heat exchange cavity 52 is provided in the first baffle 50 and a second heat exchange cavity 53 is provided in the second baffle 60. By connecting the medium cavity 12 with the first heat exchange cavity 52 and the second heat exchange cavity 53, the heat exchange medium in the medium cavity 12 can flow into the first heat exchange cavity 52 and the second heat exchange cavity 53, thus realizing the flow of the heat exchange medium. The heat exchange medium can exchange heat with the phase change energy storage device 40, thereby increasing the temperature of the first baffle 50 and the second baffle 60. This allows the temperature of the energy storage device 100 to rise more quickly, thereby improving the energy storage efficiency.

[0056] Please see Figure 5 In some implementations, it also includes: a circulation component 80;

[0057] The circulation component 80 is disposed in the medium cavity 12 and / or the first heat exchange cavity 52 and the second heat exchange cavity 53, and the circulation component 80 is used to drive the heat exchange medium in the medium cavity 12 or the first heat exchange cavity 52 and the second heat exchange cavity 53 to circulate.

[0058] Understandably, the circulation component 80 can be disposed in the medium cavity 12, the first heat exchange cavity 52, or the second heat exchange cavity 53, or in the medium cavity 12 and the first heat exchange cavity 52 or the second heat exchange cavity 53, or in the first heat exchange cavity 52 and the second heat exchange cavity 53. The circulation component 80 can drive the flow of the heat exchange medium in the medium cavity 12, the first heat exchange cavity 52, and the second heat exchange cavity 53, and the heat exchange medium can be heated. In this way, by driving the heat exchange medium through the circulation component 80, the temperature inside the shell 10 can be raised relatively quickly, thereby increasing the temperature inside the shell 10 and thus achieving the purpose of improving energy storage efficiency.

[0059] In some embodiments, the heat exchange medium is a gas or a liquid.

[0060] It is understandable that when the heat exchange medium is gas, the heating efficiency is slower, but the corrosion of the shell 10 is relatively small. When the heat exchange medium is liquid, the heating efficiency is faster, but it may cause damage to the shell 10.

[0061] Please see Figure 5 In some embodiments, it further includes: a heat insulation layer 90; the heat insulation layer 90 is disposed on the outer side wall of the housing 10.

[0062] It is understandable that a heat insulation layer 90 is provided on the outer wall of the shell 10. The heat insulation layer 90 can isolate the shell 10 from the external temperature. Under the high temperature state of the shell 10, the heat insulation layer 90 can prevent the heat inside the shell 10 from leaking out, avoid the temperature inside the shell 10 from dissipating, reduce the energy storage efficiency of the phase change energy storage device 40 inside the shell 10, and reduce the waste of heat energy.

[0063] The main purpose of this invention is to store electricity using off-peak electricity and release energy using a phase change energy storage device 40 during peak electricity periods, thereby reducing operating costs and minimizing energy waste.

[0064] In some embodiments, the phase change energy storage device 40 may be sodium acetate trihydrate or paraffin, which is prepared by microencapsulation technology, that is, encapsulating the phase change material in tiny capsules.

[0065] When the phase change energy storage device 40 absorbs heat, the ambient temperature rises to the phase change temperature of the phase change material, at which point the phase change material inside the capsule begins to absorb heat. The heat absorbed by the phase change material causes it to change from a solid to a liquid state; this process is called melting. During this process, the temperature of the phase change material inside the capsule remains relatively constant because the absorbed heat is used to overcome intermolecular forces rather than to raise the temperature.

[0066] When the phase change energy storage device 40 releases heat, the liquid phase change material inside the capsule begins to release heat when the ambient temperature drops below the phase change temperature of the phase change material. The phase change material releases heat and changes from a liquid to a solid state; this process is called solidification. Similarly, the temperature remains relatively constant during this process.

[0067] In some embodiments, it further includes a handle; the handle is disposed on the energy storage device.

[0068] Understandably, a handle is provided on one side of the energy storage device to facilitate the removal of the energy storage device from the housing 10.

[0069] It should be noted that a door is provided on one side of the housing 10 in this utility model. The door can move on the housing 10. In this way, when it is necessary to remove the energy storage device, the door can be opened to remove the energy storage device from the housing 10.

[0070] In this utility model, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this utility model can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this utility model can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this utility model, provided there is no contradiction between them.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of the technical solution of this utility model.

Claims

1. An energy storage device, characterized in that, include: Housing, heat source components, heat conduction components, phase change energy storage components; The housing has a receiving cavity, the phase change energy storage device is disposed in the receiving cavity, a heat source assembly is disposed in the middle of the housing and / or the inner periphery of the housing, and a heat conduction assembly is disposed in the receiving cavity, the heat conduction assembly is used to transfer heat to the phase change energy storage device.

2. The energy storage device according to claim 1, characterized in that, The heat source assembly includes: a first heat source and a second heat source; The first heat source is disposed in the housing, and the second heat source is disposed on the inner periphery of the housing.

3. The energy storage device according to claim 2, characterized in that, Also includes: Multiple first baffles; Multiple first baffles are spaced apart within the accommodating cavity, and two adjacent first baffles form an accommodating space for storing phase change energy storage devices; the heat-conducting component is disposed within the first baffle.

4. The energy storage device according to claim 3, characterized in that, Also includes: Second baffle; The second baffle is disposed in the accommodating cavity along the second direction, and the second baffle divides the first baffle into a first energy storage section and a second energy storage section; wherein, both the first energy storage section and the second energy storage section are used to store energy for the phase change energy storage device; the first heat source is disposed in the second baffle.

5. The energy storage device according to claim 4, characterized in that, The heat-conducting component includes: at least one driving element; The first baffle and / or the second baffle are provided with a plurality of hollowed-out portions, and the driving member is disposed in the accommodating cavity, and the driving member is used to drive the airflow in the accommodating cavity.

6. The energy storage device according to claim 4, characterized in that, The heat-conducting components include: a heat collector and a heat pipe; The heat collector is connected to the first heat source and / or the second heat source, the heat collector is connected to the heat pipe, and the heat pipe is connected to the first baffle and / or the second baffle.

7. The energy storage device according to claim 4, characterized in that, A medium cavity is provided around the side wall of the shell. The first baffle has a first heat exchange cavity and a second heat exchange cavity. Both the first heat exchange cavity and the second heat exchange cavity are in communication with the medium cavity. A heat exchange medium is provided in the medium cavity, the first heat exchange cavity, and the second heat exchange cavity. The heat exchange medium is used to exchange heat with the phase change energy storage device.

8. The energy storage device according to claim 7, characterized in that, Also includes: Loop component; The circulation component is disposed in the medium cavity and / or the first heat exchange cavity and the second heat exchange cavity, and the circulation component is used to drive the heat exchange medium in the medium cavity or the first heat exchange cavity and the second heat exchange cavity to circulate.

9. The energy storage device according to claim 8, characterized in that, The heat exchange medium is a gas or a liquid.

10. The energy storage device according to any one of claims 1 to 9, characterized in that, Also includes: Insulation layer; The outer wall of the housing is provided with a heat insulation layer.

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