Multi-specification battery pack energy storage container

Abstract

The utility model discloses a multi-specification battery pack energy storage container and relates to an energy storage container for multi-specification battery packs. The energy storage container for the multi-specification battery packs is low in cost, high in adaptability, safe, reliable, high in energy efficiency and long in service life. The multi-specification battery pack energy storage container comprises a container body, battery packs and a high-voltage box used for connecting the battery packs with an external power grid, a battery cabin is arranged in the container body, the battery packs are placed in the battery cabin, the battery packs at least comprise two specifications of battery packs, and the high-voltage box is fixedly arranged in the container body and electrically connected with the battery packs.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of energy storage containers, in particular to a kind of energy storage containers for multi-specification battery pack. BACKGROUND

[0002] In recent years, with the acceleration of the construction of China's new energy system, the proportion of renewable energy in the energy system has gradually increased, and higher requirements have been put forward for energy storage construction. The new energy storage industry has entered a period of rapid development.

[0003] The energy storage containers on the market are limited to single battery pack, such as 1P104S battery pack and 1P52S battery pack. The 1P104S battery pack not only has high cost, but also has high voltage, which poses certain safety risks during use and maintenance, such as electric shock and short circuit. Therefore, more stringent safety measures need to be taken to ensure the safe operation of the system, thereby increasing the complexity and cost of the system. The output voltage of the 1P52S battery pack is relatively low, and the energy storage capacity is limited, which may cause large energy loss during power transmission, especially during long-distance transmission. In order to reduce energy loss, additional voltage boosting equipment may be needed, and more 1P52S battery packs may be needed to meet the energy storage demand, which will increase the complexity and cost of the system. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an energy storage container for multi-specification battery pack with low cost, strong adaptability, safety and reliability, high energy efficiency and long service life.

[0005] The utility model relates to a kind of multi-specification battery pack energy storage containers, including box, battery pack and the high voltage box for connecting battery pack and external power grid, the battery cabin is arranged in the box, the battery pack is placed in the battery cabin, the battery pack at least includes two kinds of specification battery pack, the high voltage box is fixedly arranged in the box and is electrically connected with battery pack.

[0006] The utility model relates to a kind of multi-specification battery pack energy storage containers, wherein the battery cabin is a cuboid cabin composed of multiple guide rails, and the battery cabin is arranged in multiple and uniformly arranged horizontally and vertically in the box.

[0007] The utility model relates to a kind of multi-specification battery pack energy storage containers, wherein the high voltage box is provided with multiple high voltage boxes, and each column of the battery cabin is provided with a high voltage box electrically connected with the battery pack in the column of battery cabin.

[0008] The utility model relates to a kind of multi-specification battery pack energy storage containers, wherein the battery cabin is provided with a limiting block for limiting the position of the battery pack.

[0009] The utility model relates to a kind of multi-specification battery pack energy storage containers, wherein the box is provided with multiple hatch doors.

[0010] The utility model discloses a multi-specification battery pack energy storage container, wherein the box is additionally provided with a liquid cooling cabin, and a liquid cooling unit for cooling the battery pack is arranged in the liquid cooling cabin.

[0011] The utility model discloses a multi-specification battery pack energy storage container, wherein the liquid cooling cabin is provided with a ventilation grille for heat dissipation.

[0012] The utility model discloses a multi-specification battery pack energy storage container, which is different from the prior art in that the energy storage container can be adapted to at least two battery packs, such as a 1P104S battery pack and a 1P52S battery pack. Different specification battery packs are combined and installed in the battery cabin according to requirements. Each column of battery packs is controlled by a high-voltage box electrically connected thereto. When the temperature of the battery pack is too high, the liquid cooling unit is used to cool it. The high-voltage box is electrically connected to a power generation device such as a wind turbine on the outside and electrically connected to the battery pack on the inside. Thus, the electrical energy is stored. When discharging is required, the high-voltage box is electrically connected to the electrical equipment according to requirements to complete the electrical energy output.

[0013] The utility model discloses a multi-specification battery pack energy storage container, which has at least the following beneficial effects:

[0014] (1) Optimize the cost: according to the actual demand and cost budget, different number and proportion of 1P104S and 1P52S battery packs can be flexibly selected for combination. Under the premise of meeting the energy storage capacity and system performance requirements, the total cost of the system can be reduced and the economic benefit of the project can be improved by reasonable collocation.

[0015] (2) Improve the system reliability: the combination use of two kinds of battery packs can increase the redundancy of the system. If one kind of battery pack fails, the other kind of battery pack can still work, ensuring the basic operation of the system and improving the reliability and stability of the system.

[0016] (3) Voltage adaptation flexibility: according to the different working states of the power generation system such as the wind power generation system and the electrical energy transmission requirements, the combination mode of 1P104S and 1P52S battery packs can be flexibly adjusted to realize different voltage outputs, better adapt to the output voltage of the wind turbine and the access voltage of the power grid, and improve the transmission efficiency and quality of the electrical energy.

[0017] The utility model will be further described in connection with the drawings. DRAWINGS

[0018] Figure 1 It is the front view of the utility model discloses a multi-specification battery pack energy storage container;

[0019] Figure 2 It is the plan view of the utility model discloses a multi-specification battery pack energy storage container;

[0020] Figure 3 It is a three-dimensional structure schematic view of the battery cabin of the utility model.

[0021] Reference signs:

[0022] 1 - box; 11 - battery cabin; 111 - guide rail; 112 - limit block; 12 - liquid cooling cabin; 121 - liquid cooling unit; 122 - ventilation grille; 13 - cabin door; 2 - battery pack; 3 - high voltage box. DETAILED DESCRIPTION

[0023] As Figure 1 , 3 shown, the utility model discloses a multi-specification battery pack 2 energy storage container, including box 1, battery pack 2 and be used for connecting battery pack 2 with external power grid's high voltage box 3, be provided with battery cabin 11 in box 1, battery pack 2 is placed in battery cabin 11, battery pack 2 contains at least two kinds of specifications battery pack 2, and high voltage box 3 is fixedly arranged in box 1 and is electrically connected with battery pack 2.

[0024] Box 1 is a cuboid container, battery cabin 11 is firmly arranged in the inside of box 1, battery pack 2 is installed into battery cabin 11, battery pack 2 has multiple specifications, such as the 1P104S battery pack 2 and 1P52S battery pack 2 commonly used on the market, can also be other specifications battery pack 2, at least two kinds of specifications battery pack 2 are combined and installed into battery cabin 11 to meet the demand of multiple energy storage capacities, and on the basis that meeting the energy storage capacity and system performance requirement, by reasonable collocation, the total cost of system can also be reduced, and economic benefit is improved. High voltage box 3 is installed in the lower side in box 1, battery pack 2 is connected with high voltage box 3 through wire, that is, electrically connected, and high voltage box 3 is provided with charging interface and discharging interface, the charging interface is electrically connected with power generation equipment (such as wind turbine generator unit, not shown in the drawing), and the current of wind turbine generator unit enters high voltage box 3, is regulated and controlled through high voltage box 3, and the electric energy is stored into battery pack 2.

[0025] The discharging interface of high voltage box 3 is connected with load and power grid system, when the electric energy stored in the multi-specification battery pack 2 energy storage container needs to be used, the electric energy in the energy storage battery is delivered back to the power grid or supplied to the load through high voltage box 3, and the combined use of battery pack 2 can also realize different voltage outputs, and then better adapt to the output voltage of generator set (such as wind turbine generator unit) and the access voltage of power grid, and then improve the transmission efficiency and quality of electric energy.

[0026] It should be noted that high voltage box 3 has the following characteristics:

[0027] 1, high voltage box 3 can convert low voltage (direct current) into high voltage (direct current or alternating current);

[0028] 2. The high-voltage box 3 can regulate and distribute electric energy, distributing high-voltage electric energy to different electrical devices and systems to ensure that each part can operate normally.

[0029] 3. The high-voltage box 3 has functions such as overcurrent protection, overvoltage protection, undervoltage protection, and short-circuit protection. When abnormal current or voltage occurs, the high-voltage box 3 can promptly cut off the circuit to protect the safety of the multi-specification battery pack 2 energy storage container and other electrical devices.

[0030] 4. The high-voltage box 3 is equipped with sensors and monitoring devices, which can monitor the voltage, current, temperature, and other parameters of the energy storage system in real time. Through monitoring of these parameters, abnormal conditions in the multi-specification battery pack 2 energy storage container system can be detected in a timely manner, and appropriate measures can be taken to handle them, ensuring stable operation.

[0031] As shown in Figure 3 , the battery cabin 11 is a cuboid cabin composed of multiple guide rails 111. The battery cabin 11 is provided with multiple and uniformly arranged in the horizontal and vertical directions within the box body 1.

[0032] The battery cabin 11 is arranged on a cuboid frame, and multiple guide rails 111 are uniformly fixed in the horizontal and vertical directions to form a matrix composed of multiple rectangular battery cabins 11. Of course, other forms can also be set, but the matrix setting saves space and is beneficial to reducing the volume of the multi-specification battery pack 2 energy storage container. The cuboid frame is firmly fixed in the box body 1 by welding or bolts, and then the battery pack 2 is sequentially placed in the battery cabin 11. An adjusting plate for adjusting the size of the battery cabin space can be arranged in the battery cabin 11. The adjusting plate is slidingly arranged on the guide rail 111 in each battery cabin 11, such as a sliding groove arranged on the guide rail 111 in the battery cabin 11, or other connection methods that can achieve the same effect. The adjusting plate is provided with a locking pin. The battery cabin 11 space is sufficient to accommodate battery packs 2 of various specifications. After placing battery packs 2 of different specifications in the battery cabin 11, the sliding adjusting plate clamps the battery pack 2, and then the adjusting plate is locked by the locking pin to firmly fix the battery pack 2 in the battery cabin 11. This arrangement can flexibly combine battery packs 2 of various specifications to meet different energy storage needs.

[0033] As shown in Figure 1 , the high-voltage box 3 is provided with multiple high-voltage boxes 3, each column of battery cabin 11 is provided with a high-voltage box 3 electrically connected to the battery pack 2 in the column of battery cabin 11.

[0034] A high-voltage box 3 is installed at the lowermost part of each vertical column of battery compartments 11, and the battery packs 2 in each vertical column of battery compartments 11 are connected in series by wires and then electrically connected to the high-voltage box 3 below, so as to achieve the purpose of regulating a plurality of battery packs 2 by using one high-voltage box 3, and at the same time, ensure that the high-voltage box 3 will not be overloaded, thereby ensuring that the multi-specification battery pack 2 energy storage container can work stably, in addition, the installation position of the high-voltage box 3 is not limited to this, it can also be installed at other positions of the box body 1, however, compared with other common installation positions, the installation position adopted by the utility model has the advantage of saving space.

[0035] As shown in Figure 3 , the battery compartment 11 is provided with a limiting block 112 for limiting the position of the battery pack 2.

[0036] The limiting block 112 is detachably installed in each battery compartment 11 and is fixed on the track by bolts or locking pins, since the sizes of the battery packs 2 of different specifications are different, the limiting block 112 is used to fix and limit the battery packs 2 of different specifications respectively, so as to ensure that they are firmly installed in the battery compartment 11 and will not fall off.

[0037] As shown in Figure 1 , 2 , the box body 1 is provided with a plurality of hatch doors 13.

[0038] In order to prevent the battery packs 2 in the box body 1 from being affected by the natural environment, a plurality of hatch doors 13 are installed at the open positions of the front and rear sides of the box body 1, and the number of hatch doors 13 is not particularly limited, and can be installed as required, for example, one hatch door 13 can be installed at the corresponding position of each column of battery compartments 11 on the front and rear sides of the box body 1, or one hatch door 13 can be shared by a plurality of columns of battery compartments 11, the hatch doors 13 can protect the batteries and do not hinder the disassembly and assembly of the battery packs 2, thereby prolonging the service life of the battery packs 2.

[0039] As shown in Figure 1 , the box body 1 is further provided with a liquid cooling compartment 12, and the liquid cooling compartment 12 is provided with a liquid cooling unit 121 for cooling the battery packs 2.

[0040] The charging or discharging process of the battery packs 2 will release a large amount of heat energy, if the temperature is too high, it will not only damage the battery, shorten its service life and reduce its efficiency, but also easily cause fire accidents and other safety accidents, if the multi-specification battery pack 2 energy storage container is damaged and stops working, the electric energy of the wind turbine generator set will also be lost, which is not conducive to the effective use of energy, in order to prevent the above situation, the box body 1 is provided with the liquid cooling compartment 12 which is installed with the liquid cooling unit 121.

[0041] The liquid cooling unit 121 is installed in the liquid cooling cabin 12, a liquid cooling main pipe is led from the liquid cooling cabin 12 to the battery cabin 11, and liquid cooling branch pipes are respectively led into each battery cabin 11 (not shown in the liquid cooling main pipe and branch pipe diagram), the battery pack 2 in the battery cabin 11 is cooled, and then the heat energy of the battery pack 2 is taken out of the box 1 through a liquid return pipe, wherein the liquid cooling unit 121 is electrically connected with the high-voltage box 3 and is powered by the battery pack 2 in the box 1. The liquid cooling unit 121 is a prior art, and its working principle and specific structure will not be described here.

[0042] As shown in the figure, the liquid cooling cabin 12 is provided with a ventilation grille 122 for heat dissipation. Figure 2

[0043] The ventilation grille 122 for heat dissipation of the liquid cooling unit 121 is arranged on the front side of the liquid cooling cabin 12 at the right end of the box 1, and the cooling circulation of the liquid cooling unit 121 is strengthened. A radiator connected with the liquid cooling unit 121 can also be installed inside the ventilation grille 122, that is, in the liquid cooling cabin 12, (the radiator is not shown in the figure) to further strengthen the cooling circulation of the liquid cooling unit 121, and to ensure the stable operation of the battery pack 2 in the battery cabin 11, thereby reducing the failure rate of the multi-specification battery pack 2 energy storage container and prolonging its service life.

[0044] Working principle: The multi-specification battery pack 2 energy storage container is electrically connected with a generator set (such as a wind turbine generator set) and a power grid through the high-voltage box 3. The power generated by the generator set flows into the high-voltage box 3, and the electric energy is stably stored in the battery pack 2 after being regulated by the high-voltage box 3. When the battery pack 2 reaches a certain temperature, the liquid cooling unit 121 starts to cool the battery pack 2 according to the setting, and stops automatically when the temperature reaches the set temperature. When the load or the power grid needs a certain amount of electric energy, part of the electric energy in the battery pack 2 is transmitted to the load or the power grid for use through the regulation of the high-voltage box 3.

[0045] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.​

[0047] The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A multi-specification battery pack energy storage container, characterized by: The application relates to a battery box, which comprises a box body, a battery pack and a high-voltage box for connecting the battery pack with an external power grid, wherein a battery cabin is arranged in the box body, the battery pack is placed in the battery cabin, the battery pack comprises at least two kinds of battery packs, and the high-voltage box is fixedly arranged in the box body and electrically connected with the battery pack.

2. A multi-specification battery pack energy storage container according to claim 1, wherein: The battery cabin is a cuboid cabin composed of multiple guide rails, and multiple battery cabins are arranged in the box body and uniformly arranged in the horizontal and vertical directions.

3. A multi-specification battery pack energy storage container according to claim 2, wherein: The high-voltage box is provided with multiple high-voltage boxes, and each column of the battery cabins is provided with a high-voltage box which is electrically connected with the battery pack in the column of battery cabins.

4. A multi-specification battery pack energy storage container according to claim 3, wherein: The battery cabin is provided with a limiting block for limiting the position of the battery pack.

5. A multi-specification battery pack energy storage container according to claim 4, wherein: The box body is provided with multiple cabin doors.

6. A multi-specification battery pack energy storage container according to claim 5, wherein: The box body is further provided with a liquid cooling cabin, and a liquid cooling unit for cooling the battery pack is arranged in the liquid cooling cabin.

7. A multi-specification battery pack energy storage container according to claim 6, wherein: The liquid cooling cabin is provided with a ventilation grille for heat dissipation.

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