energy storage device

Abstract

The utility model relates to the technical field of energy storage, specifically relates to a kind of energy storage device. Including: shell, heat transfer part, phase-change energy storage piece;The shell has accommodating cavity, the phase-change energy storage piece is arranged in the accommodating cavity, the middle of the shell and / or the outer periphery of the shell is provided with heat transfer part, and the heat transfer part is used to heat transfer to the phase-change energy storage piece.Energy storage device includes shell, shell has accommodating cavity, phase-change energy storage piece is arranged in accommodating cavity, heat transfer part is arranged in the middle of shell or the outer periphery of shell and simultaneously heat transfer part is arranged in the middle and outer periphery of shell, heat transfer is carried out to shell by heat transfer part arranged in the middle of shell or heat transfer part arranged in the outer periphery of shell or heat transfer part arranged in the middle of shell and the outer periphery of shell, so as to store energy for phase-change energy storage piece, so as to improve the energy storage efficiency of energy storage device;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 heat storage efficiency of an energy storage device.

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

[0005] An energy storage device includes: a shell, a heat transfer section, 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, and a heat transfer section is provided in the middle of the housing and / or on the outer periphery of the housing, the heat transfer section being used to transfer heat to the phase change energy storage device.

[0007] Furthermore, the housing also includes: a support assembly;

[0008] The support assembly is disposed within the housing, and the support assembly has a mounting portion for mounting the phase change energy storage device.

[0009] Furthermore, the support assembly includes: a first support member and a second support member;

[0010] Both the first support member and the second support member are disposed within the accommodating cavity. The first support member and the second support member are spaced apart along a first direction, and the second support member is spaced apart along a second direction. The second support member is sandwiched between two adjacent first support members.

[0011] Furthermore, it also includes: a first heat source and a second heat source;

[0012] Both the first heat source and the second heat source are disposed within the housing; wherein the first heat source is disposed on the outer periphery of the housing; and the second heat source is disposed within the housing.

[0013] Furthermore, the shell can be either circular or square.

[0014] Furthermore, the energy storage device also includes: a heat-conducting component;

[0015] The heat-conducting component is connected to the first heat source and / or the second heat source, and the heat-conducting component is used to transfer energy to the phase change energy storage device.

[0016] Furthermore, the thermally conductive component includes: a thermally conductive element;

[0017] The heat-conducting component is connected to the first support and the second support, and the heat-conducting component is used to conduct heat from the first heat source and / or the second heat source to the space between the first heat source and the second heat source.

[0018] Furthermore, a heat exchange cavity is provided inside the side wall of the shell, and multiple guide plates are provided inside the heat exchange cavity, which are alternately arranged along the outer periphery of the shell.

[0019] Furthermore, the surfaces of the first support member and the second support member are provided with a plurality of protrusions, which are used to contact the phase change energy storage device.

[0020] Furthermore, the outer wall of the housing is provided with a heat insulation layer.

[0021] The energy storage device includes a shell with a accommodating cavity. A phase change energy storage element is disposed in the accommodating cavity. A heat transfer section is disposed in the middle or on the outer periphery of the shell, or a heat transfer section is disposed in both the middle and the outer periphery of the shell. Heat is transferred into the shell through the heat transfer section disposed in the middle, on the outer periphery, or in both the middle and the outer periphery of the shell. This allows energy to be stored in the phase change energy storage element disposed in the accommodating cavity, thereby improving the energy storage efficiency of the energy storage device. Attached Figure Description

[0022] 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.

[0023] Figure 1 One of the structural schematic diagrams of the energy storage device provided in the embodiments of this utility model;

[0024] Figure 2 A second schematic diagram of the energy storage device provided in this embodiment of the utility model;

[0025] Figure 3 The third schematic diagram of the energy storage device provided in the embodiment of this utility model;

[0026] Figure 4 Fourth schematic diagram of the energy storage device provided in the embodiments of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the protrusion provided in an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Energy storage device; 10-Shell; 11-Accommodation cavity; 12-Heat exchange cavity; 13-Baffle plate; 20-Heat transfer section; 30-Phase change energy storage component; 40-Support assembly; 41-First support component; 42-Second support component; 43-Protrusion; 50-First heat source; 60-Second heat source; 70-Heat conduction assembly; 71-Heat conduction component; 80-Insulation layer. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Therefore, this embodiment provides an energy storage device. The energy storage device can improve the thermal storage efficiency of an energy storage device.

[0035] Please see Figure 1 An energy storage device 100 includes: a housing 10, a heat transfer section 20, and a phase change energy storage component 30;

[0036] The housing 10 has a receiving cavity 11, the phase change energy storage device 30 is disposed in the receiving cavity 11, and a heat transfer part 20 is provided in the middle of the housing 10 and / or on the outer periphery of the housing 10, the heat transfer part 20 being used to transfer heat to the phase change energy storage device 30.

[0037] The energy storage device 100 includes a housing 10 with a receiving cavity 11. A phase change energy storage element 30 is disposed in the receiving cavity 11. A heat transfer section 20 is disposed in the middle or on the outer periphery of the housing 10, or both in the middle and on the outer periphery of the housing 10. Heat is transferred to the housing 10 through the heat transfer section 20 disposed in the middle, on the outer periphery, or both in the middle and on the outer periphery of the housing 10. This allows energy to be stored in the phase change energy storage element 30 disposed in the receiving cavity 11, thereby improving the energy storage efficiency of the energy storage device 100.

[0038] Please see Figure 2 In some embodiments, the housing 10 further includes a support assembly 40;

[0039] The support assembly 40 is disposed inside the housing 10, and the support assembly 40 has a mounting part for mounting the phase change energy storage device 30.

[0040] Understandably, a receiving cavity 11 is provided in the housing 10, and a support assembly 40 is provided inside the support assembly 40. The support assembly 40 is provided with multiple mounting parts, which are used to install phase change energy storage devices 30. Through the mounting parts, multiple phase change energy storage devices 30 can be installed in the energy storage device 100, thereby increasing the installation density of the phase change energy storage devices 30, increasing the number of phase change energy storage devices 30 installed, and improving the energy storage efficiency of the energy storage device 100.

[0041] Please see Figure 2 In some embodiments, the support component 40 includes: a first support member 41 and a second support member 42;

[0042] The first support member 41 and the second support member 42 are both disposed in the accommodating cavity 11. The first support member 41 and the second support member 42 are spaced apart along a first direction, and the second support member 42 is spaced apart along a second direction. The second support member 42 is sandwiched between two adjacent first support members 41.

[0043] Understandably, the support assembly 40 includes a first support member 41 and a second support member 42, both of which are disposed within the receiving cavity 11. The first support member 41 is spaced apart along a first direction (i.e., as shown in the image). Figure 2 The second support component 40 is spaced apart along the second direction (as shown in the vertical direction). Figure 2 (As shown in the left-right direction), both ends of the second support rod are mounted on the first support rod, so that the first support member 41 and the second support member 42 form a receiving cavity 11 that can accommodate the phase change energy storage device 30. The receiving cavity 11 formed by the first support member 41 and the second support member 42 can also increase the capacity of the energy storage device 100, allowing the energy storage device 100 to accommodate more phase change energy storage devices 30. After the phase change energy storage device 30 is installed in the receiving cavity 11, it can store energy. After the energy storage is completed, it can be taken out of the storage cavity. When in use, the phase change energy storage device 30 can be installed in the required location. After the phase change energy storage device 30 is installed in the storage cavity, the heat source can be turned on to generate heat. The phase change energy storage device 30 absorbs the heat generated by the heat source and stores the heat, thus realizing energy storage.

[0044] Please see Figure 2 and Figure 3 In some embodiments, it further includes: a first heat source 50 and a second heat source 60;

[0045] Both the first heat source 50 and the second heat source 60 are disposed within the housing 10; wherein, the first heat source 50 is disposed on the outer periphery of the housing 10; and the second heat source 60 is disposed within the housing 10.

[0046] Understandably, a first heat source 50 and a second heat source 60 are provided inside the housing 10. Specifically, the first heat source 50 is located in the middle of the housing 10, and the second heat source 60 is located on the outer periphery of the housing 10. In this way, the first heat source 50 can dissipate heat from the middle part of the housing 10 to the outside of the housing 10, and the second heat source 60 can dissipate heat from the outer periphery of the housing 10 to the middle part of the housing 10. Thus, the phase change energy storage device 30 can be heated simultaneously by the first heat source 50 and the second heat source 60 to improve the heat storage efficiency of the energy storage device 100.

[0047] In some embodiments, the first heat source 50 is a heating wire or a heating rod.

[0048] In some implementations, a heat-conducting medium is added to both the cavity of the first support member 41 and the cavity of the second support member 42. The heating wire can then heat the heat-conducting medium in the cavity of the first support member 41 and the cavity of the second support member 42, and transfer the heat generated by the heating wire to the first support member 41 and the second support member 42 through the heat-conducting medium. This achieves heat transfer and further enhances the thermal conductivity of the first support member 41 and the second support member 42, thereby improving the energy storage efficiency of the phase change energy storage device 30.

[0049] In some embodiments, the housing 10 is either circular or square.

[0050] Understandably, the housing 10 can be circular or square. Making the housing 10 circular allows for a more uniform heat distribution to the phase change energy storage device 30 within it during energy storage, as the symmetry of the circular boundary contributes to a more uniform heat exchange between the heat source and the phase change energy storage device 30. Furthermore, the circular housing 10 has better structural strength, especially under uniform external forces, as the circular structure can better disperse stress and reduce damage caused by uneven local stress.

[0051] Understandably, designing the housing 10 as square allows for a larger internal installation space, enabling the installation of a greater number of phase change energy storage devices 30. Furthermore, the square housing 10 increases the contact area between the phase change energy storage devices 30 and the heat transfer unit 20, thereby improving heat transfer efficiency. The square shape also offers higher efficiency during manufacturing and assembly. The square-shaped accommodating cavity 11 allows for better integration with other components, facilitating modular design. Especially in mass production, the processing and transportation of the square housing 10 may be more convenient and economical.

[0052] Please see Figure 3 In some embodiments, the energy storage device 100 further includes a heat-conducting component 70;

[0053] The heat-conducting component 70 is connected to the first heat source 50 and / or the second heat source 60, and the heat-conducting component 70 is used to transfer energy to the phase change energy storage device 30.

[0054] Understandably, the energy storage device also includes a heat-conducting component 70, which is connected to the first heat source 50 and the second heat source 60. In this way, the heat-conducting component 70 can absorb the heat from the heat source and transfer the heat from the heat source to the phase change energy storage device 30 through the heat-conducting component 70, thereby improving the efficiency of heat conduction.

[0055] Please see Figure 3 In some embodiments, the thermally conductive component 70 includes a thermally conductive element 71;

[0056] The heat-conducting component 71 is connected to the first support component 41 and the second support component 42. The heat-conducting component 71 is used to conduct heat from the first heat source 50 and / or the second heat source 60 to the space between the first heat source 50 and the second heat source 60.

[0057] Understandably, the heat-conducting component 70 includes a heat-conducting element 71, which is connected to the first support 41 and the second support 42. The heat-conducting component 70 can also be connected to the first heat source 50 and the second heat source 60. This allows the heat-conducting component 70 to absorb heat from the first heat source 50 and the second heat source 60, and transfer this heat through the heat-conducting element 71 to the first support 41 and the second support 42. This ensures that the heat generated by the first heat source 50 and the second heat source 60 is evenly distributed on the first support 41 and the second support 42, thereby transferring the heat into the storage cavity. This allows the phase change energy storage device 30 to better absorb heat, ensuring efficient heat transfer and ultimately improving the energy storage efficiency of the energy storage device.

[0058] Please see Figure 4 In some embodiments, a heat exchange cavity 12 is provided in the side wall of the housing 10, and a plurality of guide plates 13 are provided in the heat exchange cavity 12, which are alternately arranged along the outer periphery of the housing 10.

[0059] Understandably, a medium cavity is provided inside the side wall of the shell 10, and multiple guide plates 13 are alternately arranged in the medium cavity. The multiple guide plates 13 form a flow channel in the shell 10, which can extend the path length in the shell 10 so that the heat exchange medium can fully exchange heat with the shell 10.

[0060] Please see Figure 5 In some embodiments, the surfaces of the first support member 41 and the second support member 42 are provided with a plurality of protrusions 43, which are used to contact the phase change energy storage device 30.

[0061] Understandably, multiple protrusions 43 are provided on the surfaces of the first support member 41 and the second support member 42 to increase the contact area between the support members and the phase change energy storage device 30. The heat transfer efficiency of the phase change energy storage device 30 depends in part on the contact area with the support members. By increasing the contact points, the multiple protrusions 43 can guide heat into the phase change energy storage device 30 more quickly, enabling the energy storage device to absorb or release heat in a shorter time, thereby improving the thermal response speed of the energy storage device 100.

[0062] Please see Figure 4In some embodiments, the outer side wall of the housing 10 is provided with a heat insulation layer 80.

[0063] It is understandable that a heat insulation layer 80 is provided on the outer side wall of the housing 10. The heat insulation layer 80 can isolate the housing 10 from the external temperature. Under the high temperature state of the housing 10, the heat insulation layer 80 can prevent the heat inside the housing 10 from leaking out, avoid the temperature dissipation inside the housing 10, reduce the energy storage efficiency of the phase change energy storage device 30 inside the housing 10, and reduce the waste of heat energy.

[0064] Understandably, the main purpose of this utility model is to store electricity using off-peak electricity and release energy using phase change energy storage device 30 during peak electricity, which can reduce the cost of use and reduce the waste of electricity.

[0065] In some embodiments, the phase change energy storage device 30 may be sodium acetate trihydrate or paraffin, which is prepared by microencapsulation technology, that is, encapsulating the phase change material in tiny capsules.

[0066] When the phase change energy storage device 30 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.

[0067] When the phase change energy storage device 30 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.

[0068] 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.

[0069] 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: Shell, heat transfer section, phase change energy storage device; The housing has a receiving cavity, the phase change energy storage device is disposed in the receiving cavity, and a heat transfer section is provided in the middle of the housing and / or on the outer periphery of the housing, the heat transfer section being used to transfer heat to the phase change energy storage device.

2. The energy storage device according to claim 1, characterized in that, The housing also includes: a support assembly; The support assembly is disposed within the housing, and the support assembly has a mounting portion for mounting the phase change energy storage device.

3. The energy storage device according to claim 2, characterized in that, The support assembly includes: a first support member and a second support member; Both the first support member and the second support member are disposed within the accommodating cavity. The first support member and the second support member are spaced apart along a first direction, and the second support member is spaced apart along a second direction. The second support member is sandwiched between two adjacent first support members.

4. The energy storage device according to claim 3, characterized in that, Also includes: First heat source and second heat source; Both the first heat source and the second heat source are disposed within the housing; wherein the first heat source is disposed on the outer periphery of the housing; and the second heat source is disposed within the housing.

5. The energy storage device according to claim 1 or 2, characterized in that, The shell can be either circular or square.

6. The energy storage device according to claim 4, characterized in that, The energy storage device further includes: a heat-conducting component; The heat-conducting component is connected to the first heat source and / or the second heat source, and the heat-conducting component is used to transfer energy to the phase change energy storage device.

7. The energy storage device according to claim 6, characterized in that, The thermally conductive component includes: a thermally conductive element; The heat-conducting component is connected to the first support and the second support, and the heat-conducting component is used to conduct heat from the first heat source and / or the second heat source to the space between the first heat source and the second heat source.

8. The energy storage device according to claim 2, characterized in that, A heat exchange cavity is provided inside the side wall of the shell, and multiple guide plates are provided inside the heat exchange cavity, which are alternately arranged along the outer periphery of the shell.

9. The energy storage device according to claim 3, characterized in that, The surfaces of the first support member and the second support member are provided with a plurality of protrusions, which are used to contact the phase change energy storage device.

10. The energy storage device according to claim 2, characterized in that, The outer wall of the housing is provided with a heat insulation layer.

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