energy storage device

Abstract

The utility model relates to the field of energy storage, concretely relates to a kind of energy storage device, comprising: shell, phase-change energy storage piece, heating component;The first accommodating cavity and second accommodating cavity are provided in the shell;The first accommodating cavity and the second accommodating cavity are all provided with phase-change energy storage piece;The heating component is connected with the first accommodating cavity and / or the second accommodating cavity, and the heating component is used to store energy for the phase-change energy storage piece.In the first accommodating cavity and second accommodating cavity, phase-change energy storage piece is provided;Heating component is provided outside the shell, and the heating component is connected with the first accommodating cavity and the second accommodating cavity, so that the heating component can provide thermal energy for the first accommodating cavity and the second accommodating cavity, so that the phase-change energy storage piece in the first accommodating cavity and the second accommodating cavity realizes energy storage, to improve the energy storage efficiency of energy storage device;Phase-change energy storage piece can also be applied to heating or refrigeration equipment, to make relevant equipment realize refrigeration or heating.

Description

Technical Field

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

[0002] Phase change energy storage devices utilize the advantages of high enthalpy and high energy density of phase change energy storage materials to store electrical or thermal energy. Currently, most phase change energy storage devices rely on the absorption of heat through the dissolution of water of crystallization. When the temperature rises, the water of crystallization and salt are lost; when the temperature drops, the reverse process occurs, with the absorption of water of crystallization releasing heat. However, the energy storage efficiency of current related technologies is relatively low. Utility Model Content

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

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

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

[0006] The housing is provided with a first accommodating cavity and a second accommodating cavity; both the first accommodating cavity and the second accommodating cavity are provided with phase change energy storage devices;

[0007] The heating component is connected to the first accommodating cavity and / or the second accommodating cavity, and the heating component is used to store energy for the phase change energy storage device.

[0008] Furthermore, the heating assembly includes: a first heat sink, a second heat sink, and a compressor;

[0009] The first heat sink is disposed in the first accommodating cavity, the second heat sink is disposed in the second accommodating cavity, the compressor is connected to the first heat sink and the second heat sink, and both the first heat sink and the second heat sink are provided with heat exchange medium. The compressor is used to compress and drive the heat exchange medium to circulate between the first heat sink and the second heat sink.

[0010] Furthermore, both the first accommodating cavity and the second accommodating cavity are provided with mounting parts, which are used to install the phase change energy storage device.

[0011] Furthermore, the heating component further includes: a drive component;

[0012] The driving component is disposed in the first accommodating cavity and / or the second accommodating cavity, and the driving component is used to drive the airflow in the first accommodating cavity and / or the second accommodating cavity.

[0013] Furthermore, the first heat sink includes: a plurality of first heat sink fins;

[0014] Multiple first heat dissipation fins are spaced apart, and a first flow channel is formed between two adjacent first heat dissipation fins.

[0015] Furthermore, the second heat sink includes: a plurality of second heat sink fins;

[0016] Multiple second heat dissipation fins are spaced apart, and a second flow channel is formed between two adjacent second heat dissipation fins.

[0017] Furthermore, the heat sink includes: a first driving member and a second driving member; the first heat sink is provided with a first recess, and the second heat sink is provided with a second recess; wherein, the first driving member is provided in the first recess, and the second driving member is provided in the second recess.

[0018] Furthermore, it also includes: baffles;

[0019] Both the first accommodating cavity and the second accommodating cavity are provided with baffles at intervals, and an installation space is formed between two adjacent baffles. The installation space is used to install the phase change energy storage device.

[0020] Furthermore, the baffle has protrusions on two adjacent surfaces.

[0021] Furthermore, it also includes: a heating element; the heating element is disposed within the baffle, and the heating element is used to heat the baffle.

[0022] The aforementioned energy storage device includes a housing with a first accommodating cavity and a second accommodating cavity; a phase change energy storage element is disposed in both the first and second accommodating cavities; a heating component is disposed outside the housing and is connected to the first and second accommodating cavities, so that the heating component can provide heat energy to the first and second accommodating cavities, enabling the phase change energy storage elements in the first and second accommodating cavities to store energy, thereby improving 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 structural schematic diagrams of the energy storage device provided in the embodiments of this utility model;

[0025] Figure 2 A second schematic diagram of the energy storage device provided in this embodiment of the utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 5 A schematic diagram of the structure of the first or second heat sink provided in an embodiment of this utility model;

[0029] Figure 6 The third schematic diagram of the energy storage device provided in the embodiment of this utility model;

[0030] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0031] Figure 8 The fourth schematic diagram of the energy storage device provided in the embodiment of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 - Energy storage device; 10 - Housing; 11 - First accommodating cavity; 12 - Second accommodating cavity; 13 - Mounting part; 20 - Phase change energy storage component; 30 - Heating component; 31 - First heat dissipation component; 311 - First heat dissipation fin; 312 - First flow channel; 313 - First recess; 32 - Second heat dissipation component; 321 - Second heat dissipation fin; 322 - Second flow channel; 323 - Second recess; 33 - Compressor; 34 - First driving component; 35 - Second driving component; 40 - Baffle; 41 - Installation space; 42 - Protrusion; 50 - Heating component. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] Phase change energy storage devices utilize the advantages of high enthalpy and high energy density of phase change energy storage materials to store electrical or thermal energy. Currently, most phase change energy storage devices rely on the absorption of heat through the dissolution of water of crystallization. When the temperature rises, the water of crystallization and salt are lost; when the temperature drops, the reverse process occurs, with the absorption of water of crystallization releasing heat. However, the energy storage efficiency of current related technologies is relatively low.

[0038] Therefore, this embodiment provides an energy storage device. The energy storage device can simultaneously store energy or store heat.

[0039] Therefore, this embodiment provides an energy storage device 100. The energy storage device 100 can simultaneously store energy or store heat.

[0040] Please see Figure 1 and Figure 2 An energy storage device 100 includes: a housing 10, a phase change energy storage component 20, and a heating component 30;

[0041] The housing 10 is provided with a first accommodating cavity 11 and a second accommodating cavity 12; both the first accommodating cavity 11 and the second accommodating cavity 12 are provided with a phase change energy storage device 20;

[0042] The heating component 30 is connected to the first accommodating cavity 11 and / or the second accommodating cavity 12, and the heating component 30 is used to store energy for the phase change energy storage device 20.

[0043] The aforementioned energy storage device 100 includes a housing 10, which has a first accommodating cavity 11 and a second accommodating cavity 12. A phase change energy storage element 20 is disposed in both the first accommodating cavity 11 and the second accommodating cavity 12. A heating component 30 is disposed outside the housing 10 and is connected to the first accommodating cavity 11 and the second accommodating cavity 12. In this way, the heating component 30 can provide heat energy to the first accommodating cavity 11 and the second accommodating cavity 12 so that the phase change energy storage element 20 in the first accommodating cavity 11 and the second accommodating cavity 12 can store energy.

[0044] Please see Figure 2 In some embodiments, the heating component 30 includes: a first heat sink 31, a second heat sink 32, and a compressor 33;

[0045] The first heat sink 31 is disposed in the first accommodating cavity 11, the second heat sink 32 is disposed in the second accommodating cavity 12, the compressor 33 is connected to the first heat sink 31 and the second heat sink 32, and both the first heat sink 31 and the second heat sink 32 are provided with heat exchange medium. The compressor 33 is used to compress and drive the heat exchange medium to circulate between the first heat sink 31 and the second heat sink 32.

[0046] Understandably, a compressor 33 is provided outside the housing 10, a first heat sink 31 is provided in the first accommodating cavity 11, and a second heat sink 32 is provided in the second accommodating cavity 12. The compressor 33 is connected to the first heat sink 31 and the second heat sink 32. A heat exchange medium is provided in both the first heat sink 31 and the second heat sink 32. The compressor 33 can drive the heat exchange medium in the first heat sink 31 and the second heat sink 32 to flow, so that the first heat sink 31 and the second heat sink 32 generate heat or cold. After the energy generated by the first heat sink 31 and the second heat sink 32 is released, it can be absorbed by the phase change energy storage device 20 provided in the first accommodating cavity 11 and the second accommodating cavity 12 to achieve energy storage. In this way, cold storage or heat storage can be achieved simultaneously through the energy storage device 100.

[0047] The phase change energy storage device 20 in the first accommodating cavity 11 can store heat or cold, and the phase change energy storage device 20 in the second accommodating cavity 12 can also store heat or cold. When the phase change energy storage device 20 in the first accommodating cavity 11 is storing heat, the phase change energy storage device 20 in the second accommodating cavity 12 is storing cold, and when the phase change energy storage device 20 in the first accommodating cavity 11 is storing cold, the phase change energy storage device 20 in the second accommodating cavity 12 is storing heat.

[0048] Understandably, the compressor 33 can compress the heat exchange medium into a high-temperature, high-pressure gas. When the high-temperature, high-pressure gas flows through the first heat sink 31, it can release heat to provide thermal energy for the phase change energy storage device 20 in the first accommodating cavity 11, thus achieving energy storage. After the high-temperature, high-pressure gas dissipates heat through the first heat sink 31, it becomes a medium-temperature, high-pressure gas. Then, after flowing through the throttling device, it enters the second heat sink. At this time, the high-temperature, high-pressure gas becomes a low-temperature, low-pressure liquid to absorb heat from the second accommodating cavity 12, thus achieving refrigeration and storing cold energy for the phase change energy storage device 20 in the second accommodating cavity 12.

[0049] Please see Figure 2 In some embodiments, both the first accommodating cavity 11 and the second accommodating cavity 12 are provided with a mounting part 13, which is used to install the phase change energy storage device 20.

[0050] Understandably, both the first accommodating cavity 11 and the second accommodating cavity 12 are provided with mounting parts 13. Multiple mounting parts 13 can be provided in the first accommodating cavity 11 and the second accommodating cavity 12. Each mounting part 13 can install one phase change energy storage device 20. This allows the first cavity and the second cavity to store more phase change energy storage devices 20, so that the energy storage device 100 has higher energy storage capacity. At the same time, providing multiple phase change energy storage devices 20 can also improve the energy storage efficiency of the energy storage device 100.

[0051] In some embodiments, the heating component 30 further includes a driving component;

[0052] The driving component is disposed in the first accommodating cavity 11 and / or the second accommodating cavity 12, and the driving component is used to drive the airflow in the first accommodating cavity 11 and / or the second accommodating cavity 12.

[0053] Understandably, the heating component 30 includes a driving component, which can be disposed in the first accommodating cavity 11 and / or the second accommodating cavity 12. It can be disposed in the first accommodating cavity 11, thereby driving the airflow in the first accommodating cavity 11; or it can be disposed in the second accommodating cavity 12, thereby driving the airflow in the first accommodating cavity 11 and the second accommodating cavity 12; or the driving component can be disposed in both the first accommodating cavity 11 and the second accommodating cavity 12, thereby driving the airflow in the first accommodating cavity 11 and the second accommodating cavity 12.

[0054] Please see Figure 2 In some embodiments, the driving component further includes: a first driving element 34 and a second driving element 35;

[0055] The first accommodating cavity 11 is provided with a first driving member 34 and / or the second accommodating cavity 12 is provided with a second driving member 35. The first driving member 34 is used to drive the airflow in the first accommodating cavity 11, and the second driving member 35 is used to drive the airflow in the second accommodating cavity 12.

[0056] Understandably, the first driving element 34 is disposed in the first accommodating cavity 11, which can drive the airflow in the first accommodating cavity 11 to accelerate, so that the heat dissipation efficiency of the heat sink in the first accommodating cavity 11 is higher. At the same time, the phase change energy storage device 20 disposed in the first accommodating cavity 11 can also receive more heat for energy storage. The second driving element 35 is disposed in the second accommodating cavity 12, which can drive the airflow in the second accommodating cavity 12 to accelerate, so that the heat dissipation efficiency of the heat sink in the second accommodating cavity 12 is higher. At the same time, the phase change energy storage device 20 disposed in the second accommodating cavity 12 can also receive more heat for energy storage. The first driving component 34 can make the energy conversion efficiency of the first accommodating cavity 11 higher per unit time; the second driving component 35 can make the energy conversion efficiency of the second accommodating cavity 12 higher per unit time; at the same time, the circulation of hot air can enable the phase change energy storage device 20 to receive more heating from the hot air, so that the phase change energy storage device 20 can absorb heat faster, thereby achieving the purpose of improving energy storage efficiency.

[0057] Please see Figure 2 and Figure 3 In some embodiments, the first heat sink 31 includes: a plurality of first heat sink fins 311;

[0058] Multiple first heat dissipation fins 311 are spaced apart, and a first flow channel 312 is formed between two adjacent first heat dissipation fins 311.

[0059] Understandably, the first heat sink 31 includes multiple first heat sink fins 311, which are spaced apart. A first flow channel 312 is formed between two adjacent first heat sink fins 311 to allow airflow. In order to enable the first heat sink fins 311 to better receive heat, the first driving member 34 is positioned on the side away from the phase change energy storage device 20. When the airflow is driven by the first driving member 34, the airflow can be heated through the first flow channel 312 between two adjacent first heat sink fins 311. In this way, the airflow in the first accommodating cavity 11 is gradually heated, so that the temperature in the first accommodating cavity 11 rises. This allows the phase change energy storage device 20 to absorb the hot airflow in the first accommodating cavity 11 to store energy, thereby improving the efficiency of heat conduction.

[0060] Please see Figure 2 and Figure 4In some embodiments, the second heat sink 32 includes: a plurality of second heat sink fins 321;

[0061] Multiple second heat dissipation fins 321 are spaced apart, and a second flow channel 322 is formed between two adjacent second heat dissipation fins 321.

[0062] Understandably, the second heat sink 32 includes multiple second heat sink fins 321, which are spaced apart. A second flow channel 322 is formed between two adjacent second heat sink fins 321 to allow airflow. In order to enable the second heat sink fins 321 to better receive heat, the second drive 35 is positioned on the side away from the phase change energy storage device 20. When the airflow is driven by the second drive 35, the airflow can be heated through the second flow channel 322 between two adjacent second heat sink fins 321. In this way, the airflow in the second accommodating cavity 12 is gradually heated, so that the temperature in the second accommodating cavity 12 rises. This allows the phase change energy storage device 20 to absorb the hot airflow in the first accommodating cavity 11 to store energy, thereby improving the efficiency of heat conduction and thus achieving the purpose of improving the energy storage efficiency of the phase change energy storage device 20.

[0063] Please see Figure 2 and Figure 5 In some embodiments, the first heat sink 31 is provided with a first recess 313, and the second heat sink 32 is provided with a second recess 323; wherein, the first driving member 34 is provided in the first recess 313, and the second driving member 35 is provided in the second recess 323.

[0064] It is understandable that a first recess 313 is provided on the first heat sink 31, and the first driving member 34 is disposed in the first recess 313. In this way, the first driving member 34 can accelerate the airflow speed near the first heat sink 31, so that the airflow can exchange heat with the heat sink fins more quickly, and the heat of the heat sink fins can be released more quickly. This allows the heat on the heat sink fins to be transferred to the phase change energy storage device 20 more quickly, thereby improving the energy storage efficiency of the phase change energy storage device 20.

[0065] Understandably, a second recess 323 is provided on the second heat sink 32, and the second driving member 35 is disposed in the second recess 323. In this way, the second driving member 35 can accelerate the airflow speed near the second heat sink 32, so that the airflow can exchange heat with the heat sink fins more quickly, and the heat of the heat sink fins can be released more quickly. This allows the heat on the heat sink fins to be transferred to the phase change energy storage device 20 more quickly, thereby improving the energy storage efficiency of the phase change energy storage device 20.

[0066] Please see Figure 6 In some embodiments, it also includes: a baffle 40;

[0067] Both the first accommodating cavity 11 and the second accommodating cavity 12 are provided with baffles 40 at intervals, and an installation space 41 is formed between two adjacent baffles 40. The installation space 41 is used to install the phase change energy storage device 20.

[0068] Understandably, it also includes baffles 40, which are spaced apart in the first accommodating cavity 11 and the second accommodating cavity 12. An installation space 41 is formed between two adjacent baffles 40. The phase change energy storage device 20 can be installed in the installation space 41. Setting multiple baffles 40 can allow more phase change energy storage devices 20 to be stored in the first accommodating cavity 11 and the second accommodating cavity 12, thereby improving energy storage efficiency.

[0069] Please see Figure 6 and Figure 7 In some embodiments, the baffle 40 has protrusions 42 on two adjacent surfaces.

[0070] Understandably, providing multiple protrusions on the surfaces of the first and second supports increases the contact area between the supports and the phase change energy storage device 20. The heat transfer efficiency of the phase change energy storage device 20 depends in part on the contact area with the supports. By increasing the contact points, the multiple protrusions can guide heat into the phase change energy storage device 20 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.

[0071] Please see Figure 8 In some embodiments, it further includes: a heating element 50; the heating element 50 is disposed within the baffle 40, and the heating element 50 is used to heat the baffle 40.

[0072] It is understandable that a heater is installed on the second heat exchange pipeline. The water discharged from the second heat exchange pipeline is relatively cold water. By installing a heater on the second heat exchange pipeline, the water flowing back in the second heat exchange pipeline can be heated. This can increase the temperature of the water flowing back in the second heat exchange pipeline, so that the temperature entering the heat exchanger is higher, which can increase the temperature of the heat exchanger during heating and improve the heating efficiency of the heat exchanger.

[0073] It should be noted that the heater mentioned above is installed on the heat storage chamber, and the heating efficiency of the heat exchanger is improved by heating the heat storage chamber.

[0074] In some embodiments, a heat insulation layer is provided on the outer periphery of the housing 10.

[0075] It is understandable that a heat insulation layer is provided on the outside of the shell 10. The heat insulation layer can isolate the temperature inside the shell 10. Under the high temperature state of the shell 10, the heat insulation layer can prevent the heat inside the shell 10 from leaking out, avoid the temperature dissipation inside the shell 10, reduce the energy storage efficiency of the phase change energy storage device 20 inside the shell 10, and reduce the waste of heat energy.

[0076] 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.

[0077] 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, phase change energy storage device, heating assembly; The housing is provided with a first accommodating cavity and a second accommodating cavity; both the first accommodating cavity and the second accommodating cavity are provided with phase change energy storage devices; The heating component is connected to the first accommodating cavity and / or the second accommodating cavity, and the heating component is used to store energy for the phase change energy storage device.

2. The energy storage device according to claim 1, characterized in that, The heating assembly includes: a first heat sink, a second heat sink, and a compressor; The first heat sink is disposed in the first accommodating cavity, the second heat sink is disposed in the second accommodating cavity, the compressor is connected to the first heat sink and the second heat sink, and both the first heat sink and the second heat sink are provided with heat exchange medium. The compressor is used to compress and drive the heat exchange medium to circulate between the first heat sink and the second heat sink.

3. The energy storage device according to claim 2, characterized in that, Both the first accommodating cavity and the second accommodating cavity are provided with mounting parts, which are used to install the phase change energy storage device.

4. The energy storage device according to claim 3, characterized in that, The heating component further includes: a drive component; The driving component is disposed in the first accommodating cavity and / or the second accommodating cavity, and the driving component is used to drive the airflow in the first accommodating cavity and / or the second accommodating cavity.

5. The energy storage device according to claim 4, characterized in that, The first heat sink includes: a plurality of first heat sink fins; Multiple first heat dissipation fins are spaced apart, and a first flow channel is formed between two adjacent first heat dissipation fins.

6. The energy storage device according to claim 5, characterized in that, The second heat sink includes: a plurality of second heat sink fins; Multiple second heat dissipation fins are spaced apart, and a second flow channel is formed between two adjacent second heat dissipation fins.

7. The energy storage device according to claim 6, characterized in that, The heat sink includes: a first driving member and a second driving member; the first heat sink has a first recess, and the second heat sink has a second recess; wherein the first driving member is disposed in the first recess, and the second driving member is disposed in the second recess.

8. The energy storage device according to claim 4, characterized in that, Also includes: baffle; Both the first accommodating cavity and the second accommodating cavity are provided with baffles at intervals, and an installation space is formed between two adjacent baffles. The installation space is used to install the phase change energy storage device.

9. The energy storage device according to claim 8, characterized in that, The baffle has protrusions on two adjacent sides.

10. The energy storage device according to claim 8, characterized in that, Also includes: A heating element; the heating element is disposed inside the baffle and is used to heat the baffle.

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