Lithium battery energy storage system and hydrogen energy power supply system

Abstract

The utility model discloses a lithium battery energy storage system and a hydrogen energy power supply system, the lithium battery energy storage system is used for being connected with a hydrogen production system, the lithium battery energy storage system comprises a base, a battery pack, a high-voltage box and an inverter, and the battery pack is arranged on the base; the high-voltage box is arranged on the battery pack and is electrically connected with the hydrogen production system and the battery pack respectively so as to distribute electric energy output by the hydrogen production system to the battery pack; and one end of the inverter is connected with the high-voltage box, and the inverter is used for converting the electric energy output by the battery pack into alternating current. According to the utility model, electric energy can be output to the high-voltage box through the hydrogen production system, so that the high-voltage box can distribute the electric energy to the battery pack for storage, overcurrent and overvoltage protection can be provided at the same time, and when the inverter converts the electric energy output by the battery pack into alternating current, the electric energy can also be distributed; and the storage and use efficiency of electric energy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy technology field, concretely relates to a lithium electricity energy storage system and hydrogen energy power supply system. BACKGROUND

[0002] With the continuous improvement of hydrogen production, storage and transportation technology, hydrogen energy is rapidly developed in new energy technology due to its advantages of clean and environmental protection and sustainable utilization. In related technologies, the existing hydrogen power generation usually needs to store electric energy, and the electric energy transmission between various components is difficult to effectively distribute and protect, resulting in difficult to improve the storage and use efficiency of electric energy. SUMMARY

[0003] The utility model aims at least in a certain extent solves one of the technical problems in the related art. For this purpose, one object of the utility model is to provide a lithium electricity energy storage system for connecting with a hydrogen production system, comprising:

[0004] a base;

[0005] a battery pack provided on the base;

[0006] a high-voltage box provided on the battery pack and electrically connected with the hydrogen production system and the battery pack respectively, to distribute the electric energy output by the hydrogen production system to the battery pack;

[0007] an inverter connected with the high-voltage box at one end, for converting the electric energy output by the battery pack into alternating current.

[0008] Preferably, the base has a protruding first embedding part, which is embedded with the battery pack to limit the movement of the battery pack in the horizontal direction.

[0009] Preferably, the battery pack includes a plurality of energy storage batteries, which are stacked in order from bottom to top and electrically connected with each other.

[0010] Preferably, each of the energy storage batteries is provided with a first connection interface, which is used to connect adjacent energy storage batteries with each other.

[0011] Preferably, each of the energy storage batteries has a second embedding part, which is arranged around the connection interface to limit the movement of the energy storage batteries in the horizontal direction.

[0012] Preferably, a handle is further arranged on each of the energy storage batteries, and the handle is pivotable between a first position and a second position, when the handle is in the first position, the handle protrudes from the surface of the energy storage battery, and when the handle is in the second position, the handle is recessed in the surface of the energy storage battery.

[0013] Preferably, the high-voltage box is provided with at least two second connection interfaces, and the at least two second connection interfaces are respectively electrically connected with the hydrogen production system and the inverter.

[0014] Preferably, a hanging part is arranged on the side surface of the inverter, and the hanging part is used for hanging and fixing the inverter.

[0015] One purpose of the present application is to provide a hydrogen energy power supply system, which comprises the lithium battery energy storage system.

[0016] The above scheme of the present application at least has the following beneficial effects:

[0017] The lithium battery energy storage system provided by the present application can output electric energy to the high-voltage box through the hydrogen production system, so that the high-voltage box can distribute the electric energy to the battery pack for storage, and at the same time, overcurrent and overvoltage protection can be provided, and when the inverter converts the electric energy output by the battery pack into alternating current, the electric energy can also be distributed, thereby improving the storage and use efficiency of the electric energy.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0020] Figure 1 is a structural schematic diagram of the lithium battery energy storage system provided in the embodiments of the present application;

[0021] Figure 2 is a structural schematic diagram of the base provided in the embodiments of the present application;

[0022] Figure 3 is a structural exploded view of the battery pack provided in the embodiments of the present application;

[0023] Figure 4is a structural schematic view of a high-voltage box provided in the embodiments of the present utility model;

[0024] Figure 5 is a structural schematic view of an inverter provided in the embodiments of the present utility model;

[0025] Explanation of reference numerals:

[0026] 10, base; 101, first embedding part; 20, battery pack; 21, energy storage battery; 211, first connection interface; 212, second embedding part; 213, handle; 30, high-voltage box; 301, second connection interface; 40, inverter; 401, hanging piece.

[0027] The realization, functional features and advantages of the present utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0028] The embodiments of the present utility model will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and cannot be understood as limiting the present utility model, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it is understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present utility model.

[0030] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication.For ordinary skilled person in the art, the above terms can be understood according to the specific meaning in the utility model.

[0032] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features directly contact, can also include the first and second features are not directly contact but contact through another feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0033] The lithium electricity energy storage system and hydrogen energy power supply system of the utility model embodiment are described in detail below with reference to the drawings.

[0034] Referring to Figures 1 to 5 The lithium electricity energy storage system provided in the utility model embodiment is connected with a hydrogen production system and includes a base 10, a battery pack 20, a high-voltage box 30 and an inverter 40.The battery pack 20 is arranged on the base 10.The high-voltage box 30 is arranged on the battery pack 20 and electrically connected with the hydrogen production system and the battery pack 20 respectively to distribute the electric energy output by the hydrogen production system to the battery pack 20.The inverter 40 is connected with the high-voltage box 30 at one end and used to convert the electric energy output by the battery pack 20 into alternating current.

[0035] The inverter 40 can be a bidirectional inverter 40, which can convert direct current into alternating current and also can convert alternating current into direct current.The inverter 40 can be connected to photovoltaic power generation or commercial power supply to supply power to the battery pack 20 or connected to a load end to transmit the electric energy of the battery pack 20 to the load end.

[0036] The lithium electricity energy storage system provided in the utility model can output electric energy to the high-voltage box 30 through the hydrogen production system, so that the high-voltage box 30 can distribute the electric energy to the battery pack 20 for storage, can provide overcurrent and overvoltage protection, and can also distribute the electric energy when the inverter 40 converts the electric energy output by the battery pack 20 into alternating current, thereby improving the storage and use efficiency of the electric energy.

[0037] Referring to Figure 2As shown, the base 10 has a protruding first insert portion 101, which engages with the battery pack 20 to restrict the horizontal movement of the battery pack 20. Furthermore, the battery pack 20 includes a plurality of energy storage batteries 21, which are stacked sequentially from bottom to top and electrically connected to each other.

[0038] In this embodiment, each energy storage battery 21 has an embedding groove at its bottom corresponding to the first embedding part 101, so that the first embedding part 101 can be embedded in the embedding groove to restrict the energy storage battery 21 from moving in the horizontal direction. When the energy storage battery 21 is stacked on the base 10, the installation is simpler and faster.

[0039] Reference Figure 3 As shown, each energy storage battery 21 is provided with a first connection interface 211, which is used to connect adjacent energy storage batteries 21 to each other; further, each energy storage battery 21 is provided with a second embedding part 212, which is arranged around the connection interface to restrict the horizontal movement between energy storage batteries 21.

[0040] In this embodiment, the bottom of the energy storage battery 21 may be provided with a socket corresponding to the first connection interface 211, so that the first connection interface 211 can be plugged into the socket of the energy storage battery 21 stacked on top of it, thereby connecting multiple energy storage batteries 21 to each other, so that the electrical energy can be reasonably distributed when charging and storing energy in the energy storage battery 21; the second embedding part 212 limits the space between the energy storage batteries 21, making the battery pack 20 easier to install, and only the first connection interface 211 needs to be aligned to achieve a stable connection.

[0041] Optionally, each energy storage battery 21 is also provided with a handle 213, which is pivotable between a first position and a second position. When the handle 213 is in the first position, it protrudes from the surface of the energy storage battery 21; when the handle 213 is in the second position, it is recessed into the surface of the energy storage battery 21. This allows for easier handling of the energy storage battery 21 when it is disassembled or stacked.

[0042] Reference Figure 4 As shown, the high-voltage box 30 is provided with at least two second connection interfaces 301, which are used to electrically connect to the hydrogen production system and the inverter 40 respectively. A switch can be installed between the hydrogen production system and the high-voltage box 30 to better control the on / off state when transmitting electrical energy. By connecting the high-voltage box 30 to the inverter 40, the high-voltage box 30 can distribute electrical energy when the inverter 40 is inputting or outputting electrical energy, and provides overcurrent and overvoltage protection, resulting in higher safety.

[0043] ReferenceFigure 5 As shown, the inverter 40 has a mounting bracket 401 on its side, which is used to hang and fix the inverter 40. The mounting bracket 401 can suspend the inverter 40 onto a load-bearing object such as a wall, making the installation of the inverter 40 more convenient and stable.

[0044] The hydrogen-powered power supply system proposed in the embodiments of this utility model includes the lithium-ion battery energy storage system described above. The hydrogen-powered power supply system generates electricity through a hydrogen production system and outputs it to the lithium-ion battery energy storage system for energy storage. During energy storage, the hydrogen production system can output electrical energy to the high-voltage box 30, which can then distribute the electrical energy to the battery pack 20 for storage. It also provides overcurrent and overvoltage protection. Furthermore, when the inverter 40 converts the electrical energy output from the battery pack 20 into AC power, it can also distribute the electrical energy, thus improving the efficiency of energy storage and utilization.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lithium electrical energy storage system, characterized by, A lithium battery energy storage system for use with a hydrogen production system, comprising: a base; a battery pack disposed on the base; a high voltage box disposed on the battery pack and electrically connected to the hydrogen production system and the battery pack respectively to distribute the electrical energy output by the hydrogen production system to the battery pack; an inverter connected to the high voltage box at one end to convert the electrical energy output by the battery pack into alternating current; the battery pack comprises a plurality of energy storage batteries stacked on top of each other and electrically connected to each other; each of the energy storage batteries is provided with a first connection interface for connecting adjacent energy storage batteries to each other.

2. The lithium electrical energy storage system of claim 1, wherein, the base is provided with a first protruding insertion portion for insertion into the battery pack to restrict horizontal movement of the battery pack.

3. The lithium battery energy storage system of claim 1, wherein, each of the energy storage batteries is provided with a second insertion portion surrounding the connection interface to restrict horizontal movement between the energy storage batteries.

4. The lithium battery energy storage system of claim 1, wherein, each of the energy storage batteries is further provided with a handle pivotable between a first position and a second position, wherein when the handle is in the first position, the handle protrudes from the surface of the energy storage battery, and when the handle is in the second position, the handle is recessed into the surface of the energy storage battery.

5. The lithium battery energy storage system of claim 1, wherein, the high voltage box is provided with at least two second connection interfaces for electrically connecting to the hydrogen production system and the inverter respectively.

6. The lithium battery energy storage system of claim 1, wherein, the inverter is provided with a hanging member on a side surface thereof for hanging and fixing the inverter.

7. A hydrogen energy power supply system characterized by comprising: a lithium battery energy storage system as claimed in any one of claims 1 to 6.

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