Energy storage cabinet and energy storage system

Abstract

The utility model relates to the technical field of electric power energy storage, and specifically discloses an energy storage cabinet body and an energy storage system. The energy storage cabinet body comprises a cabinet provided with a mounting cavity, a partition plate which is mounted in the cabinet and divides the mounting cavity into a control cabin and a battery cabin, a cabin door which is used for opening and closing the control cabin and is provided with an air inlet, and a cabinet door which is used for opening and closing the battery cabin and is arranged on the same side with the cabin door; the control cabin is positioned above the battery cabin; an air outlet is formed in one side, far away from the bin door, of the mounting cavity; the side, away from the bin door, of the control bin and the side, away from the cabinet door, of the battery bin form an L-shaped groove. According to the utility model, multi-direction cabinet combination can be realized, no gap exists between two adjacent groups of cabinets after cabinet combination, and the occupied space is reduced; and meanwhile, good heat dissipation performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy storage, and more specifically, to an energy storage cabinet and an energy storage system. Background Art

[0002] The energy storage system in the existing technology will generate high heat during operation. The mainstream thermal management technologies are divided into air cooling system and liquid cooling system. The air cooling system usually adds a heat exchange module in the energy storage cabinet to reduce the high temperature inside the cabinet to achieve a suitable temperature for maintaining the normal operation of the battery; the heat dissipation system is an important component in the energy storage system to ensure battery safety, increase cycle life and improve energy efficiency, and directly affects the performance and reliability of the entire system.

[0003] In the prior art, a single energy storage cabinet is used as a basic unit. When energy capacity needs to be increased, the capacity is usually expanded by combining cabinets. However, due to the installation of the heat exchange module in the heat dissipation system and the design of the air duct, a horizontal "shoulder-to-shoulder" cabinet combination method is usually adopted. The cabinet combination direction is single, and the construction area requirements are high, which is not flexible enough and has poor heat dissipation effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an energy storage cabinet and an energy storage system, which can realize multi-directional cabinet connection, can be flexibly arranged according to the on-site space, and there is no gap between two adjacent sets of cabinets after the cabinets are connected, thereby reducing the space occupation; and at the same time, it has good heat dissipation performance;

[0005] The solution adopted by the utility model to solve the technical problem is:

[0006] An energy storage cabinet comprises a cabinet provided with an installation cavity, a partition installed in the cabinet and dividing the installation cavity into a control compartment and a battery compartment, a compartment door used for opening and closing the control compartment and provided with an air inlet, and a cabinet door used for opening and closing the battery compartment and provided on the same side as the compartment door;

[0007] The control compartment is located above the battery compartment;

[0008] An air outlet is arranged on the side of the installation cavity away from the door; an L-shaped groove is formed on the side of the control compartment away from the door and the side of the battery compartment away from the cabinet door.

[0009] In some possible implementations, in order to effectively achieve heat exchange in the control compartment and the cabinet door to reduce the temperature inside;

[0010] A heat exchange module for exchanging heat between the control compartment and the battery compartment and connected to the air outlet is provided in the control compartment;

[0011] A ventilation duct which is in communication with the battery compartment and is used in conjunction with the heat exchange module is arranged on the partition.

[0012] In some possible implementations, in order to effectively prevent impurities, rainwater, etc. from entering the installation cavity and causing damage;

[0013] The air inlet and the air outlet are respectively provided with shutters.

[0014] In some possible implementations,

[0015] A hollow frame and a filter louver installed on the hollow frame are arranged on the L-shaped groove;

[0016] The hollow frame includes two sets of brackets arranged in parallel and coplanar with the outer side of the control compartment and the outer side of the battery compartment, and a connecting rod arranged between the two sets of brackets and connected to the two sets of brackets;

[0017] A side air vent connected to the air outlet is formed between the bracket and the control compartment on the side close to each other, a top air vent connected to the air outlet is formed between the top of the bracket and the control compartment on the side close to each other, and two groups of brackets and connecting rods cooperate to form a back air vent connected to the air outlet.

[0018] In some possible implementations, in order to achieve a good heat dissipation effect after the cabinets are connected in parallel, the heat inside each cabinet can be well exchanged;

[0019] The bracket is L-shaped, including a vertical rod installed on the top of the battery compartment and on the same vertical plane as the side of the battery compartment away from the cabinet door, and a transverse rod connected to the top of the vertical rod and coplanar with the top surface of the cabinet; the two ends of the connecting rod are respectively connected to the connection between the transverse rod and the corresponding vertical rod.

[0020] An energy storage system comprises two groups of symmetrically arranged energy storage units; the energy storage units comprise a plurality of energy storage cabinets arranged side by side and as described above;

[0021] The energy storage cabinets in the two groups of energy storage units are symmetrically arranged and the air outlets are arranged on the sides close to each other; the two adjacent groups of energy storage cabinets are in contact and fit with each other.

[0022] In some possible implementations,

[0023] It also includes a connecting rod connecting two adjacent groups of energy storage cabinets.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] Compared with the prior art in which energy storage cabinets can only be connected in one direction, the utility model can realize multi-directional (horizontal and vertical) parallel connection. At the same time, after parallel connection, two adjacent groups of energy storage cabinets can be seamlessly connected, which can greatly reduce the space occupation while ensuring that the energy storage system has good heat dissipation performance;

[0026] The utility model arranges a partition in the installation cavity so that the battery compartment is an independent compartment, so that it is not affected by the external environment and can still be used normally in harsh environments;

[0027] The utility model gathers the heat exchange of the battery compartment into the control compartment through the heat exchange module, and discharges the heat from the energy storage cabinet through the cooperation of the air inlet, the air outlet and the heat exchange module; the heat can be discharged from the air outlet in multiple directions, so that when the energy storage system is combined with cabinets to increase capacity, the air outlet and heat dissipation space can be used to meet the requirements of horizontal "shoulder to shoulder" and vertical "back to back" cabinet combination at the same time, realize multi-directional cabinet combination, reduce the requirements for construction land occupation, and realize seamless connection;

[0028] The utility model has a simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the energy storage system in the utility model;

[0030] Figure 2 It is a structural schematic diagram of the cabinet and partition in the utility model;

[0031] Figure 3 It is a structural schematic diagram of the energy storage cabinet in the utility model;

[0032] Figure 4 This is a schematic diagram of the structural relationship between the cabinet, L-shaped groove, and hollow frame in the utility model;

[0033] Figure 5 It is a heat exchange schematic diagram of the energy storage cabinet in the utility model;

[0034] Among them: 1. Cabinet; 2. Partition; 21. Ventilation duct; 3. Control compartment; 31. Compartment door; 311. Air inlet; 32. Hollow frame; 321. Vertical rod; 322. Horizontal rod; 323. Connecting rod; 33. Top air outlet; 34. Side air outlet; 34. Battery compartment; 41. Battery compartment door; 5. Heat exchange module; 10. Heat dissipation channel. DETAILED DESCRIPTION

[0035] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can indicate: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0036] The utility model is described in detail below.

[0037] like Figure 1-Figure 5 As shown,

[0038] An energy storage system includes two groups of symmetrically arranged energy storage units; the energy storage units include multiple groups of energy storage cabinets arranged side by side and connecting rods connecting two adjacent groups of energy storage cabinets; the two adjacent groups of energy storage cabinets described here may be two adjacent groups of energy storage cabinets in the same group of energy storage units, or may be two adjacent groups of energy storage cabinets in two groups of energy storage units;

[0039] The energy storage cabinets in the two groups of energy storage units are symmetrically arranged and the air outlets are arranged on the sides close to each other; the two adjacent groups of energy storage cabinets are in contact and fit with each other.

[0040] The energy storage cabinet comprises a cabinet 1 provided with an installation cavity, a partition 2 installed in the cabinet 1 and dividing the installation cavity into a control compartment 3 and a battery compartment 4, a compartment door 31 for opening and closing the control compartment 3 and provided with an air inlet 311, and a battery compartment 4 door for opening and closing the battery compartment 4 and provided on the same side as the compartment door 31;

[0041] The control compartment 3 is located above the battery compartment 4;

[0042] An air outlet is provided on the side of the installation cavity away from the door 31; an L-shaped groove is formed between the side of the control compartment 3 away from the door 31 and the side of the battery compartment 4 away from the door of the battery compartment 4, and the L-shaped groove is an air outlet and heat dissipation space to discharge heat from multiple directions;

[0043] When assembling and connecting, first install one group of energy storage units, and make the two adjacent groups of energy storage cabinets fit tightly together. After the assembly is completed, the air outlets of the energy storage units in this group will be located on the same side and on the same plane;

[0044] Then, another group of energy storage units is installed, and the two groups of energy storage units are ensured to be symmetrically arranged, and the air outlet is arranged on the side where the two groups of energy storage units are close to each other, so that all L-shaped grooves will be connected to a large heat dissipation channel 10, and the heat dissipation channel 10 will be a U-shaped structure, with openings on the upper part and along the arrangement direction of each group of energy storage units;

[0045] The hot air generated by each energy storage cabinet during heat exchange is transported to the heat dissipation channel 10 through the outlet, and discharged through the three openings of the heat dissipation channel 10, thereby achieving good heat dissipation performance while ensuring multi-directional parallel connection. Due to the formation of the heat dissipation channel 10, it is no longer necessary to leave a heat dissipation gap between two adjacent groups of energy storage cabinets to achieve heat dissipation, thereby reducing space occupancy;

[0046] At the same time, by setting the partition 2, the battery compartment 4 is made into an independent compartment, which can increase the adaptability to harsh environments and reduce the possibility of wind and sand entering the battery compartment 4;

[0047] In some possible implementations, in order to effectively achieve heat exchange in the control compartment 3 and the battery compartment 4 door to reduce the internal temperature;

[0048] A heat exchange module 5 for heat exchange between the control compartment 3 and the battery compartment 4 and connected to the air outlet is provided in the control compartment 3;

[0049] A ventilation duct 21 is provided on the partition plate 2, which is in communication with the battery compartment 4 and cooperates with the heat exchange module 5;

[0050] The utility model arranges the heat exchange module 5 in the cabinet 1, which can significantly reduce the noise generated during operation compared with the external design in the prior art;

[0051] The heat exchange module 5 is arranged in the cabinet 1 so that the internal circulation air duct formed by connecting with the battery compartment 4 is more reasonable, the air duct is shorter, the air volume loss is smaller, and the cooling efficiency is higher;

[0052] At the same time, the built-in setting of the heat exchange module 5 will enable the energy storage cabinets to be seamlessly connected when connected in parallel;

[0053] Furthermore, an uninterruptible power supply is installed on the partition 2, and an energy storage converter and a high-voltage box are installed above the heat exchange module 5 and the uninterruptible power supply;

[0054] Air enters the control compartment 3 through the air inlet 311, passes through the heat exchange module 5 and the energy storage inverter, takes away the heat and is discharged from the energy storage cabinet through the air outlet; wherein, the heat exchange channel of the heat exchange module 5 corresponds to and is connected with the ventilation duct 21, thereby performing heat exchange and gathering the heat in the control compartment 3 to reduce the high temperature in the energy storage battery compartment 4, and the heat will also be discharged to the outside through the air outlet.

[0055] In some possible implementations, in order to effectively prevent impurities, rainwater, etc. from entering the installation cavity and causing damage;

[0056] The air inlet 311 and the air outlet are respectively provided with shutters.

[0057] In some possible implementations, in order to prevent a lot of impurities from accumulating on the L-shaped groove after long-term use, blocking the air outlet and affecting the heat dissipation effect;

[0058] A hollow frame 32 and a filter louver installed on the hollow frame 32 and used for filtering impurities are provided on the L-shaped groove;

[0059] like Figure 3 As shown, the hollow frame 32 includes two sets of brackets arranged in parallel and coplanar with the external side surfaces of the cabinet, and a connecting rod 323 arranged between the two sets of brackets and connected with the two sets of brackets; the external side surfaces of the cabinet described here are the top surface of the control compartment 3, the back surface of the battery compartment 4, and the two side surfaces of the cabinet along the X-axis direction;

[0060] The side air vent 34 connected to the air outlet is formed between the bracket and the control compartment 3 on the side close to each other, the top air vent 33 connected to the air outlet is formed between the top of the bracket and the side close to the control compartment 3, and the two sets of brackets and the connecting rod 323 cooperate to form a back air vent connected to the air outlet;

[0061] Furthermore, filter louvers are provided on the side vents 34, the top vents 33, and the back vents respectively; the filter louvers do not affect the hot air discharge, and at the same time prevent a large amount of impurities from accumulating in the L-shaped groove after long-term use, blocking the vents, affecting the heat exchange effect, and reducing the heat dissipation efficiency;

[0062] In some possible implementations, in order to achieve a good heat dissipation effect after the cabinets 1 are connected in parallel, the heat inside each cabinet can be well exchanged;

[0063] The bracket is L-shaped, including a vertical rod 321 which is on the same vertical plane as the side of the battery compartment 4 away from the battery compartment door and installed on the top of the battery compartment 4, and a transverse rod 322 which is connected to the top of the vertical rod 321 and is coplanar with the top surface of the cabinet 1; the two ends of the connecting rod 323 are respectively connected to the connection between the transverse rod 322 and the corresponding vertical rod 321.

[0064] When the entire cabinet 1 is a rectangular body, the vertical rod 321 is arranged along the Z-axis direction and at the corner of the top of the battery compartment 4, and its top surface is coplanar with the top surface of the cabinet 1, and is connected to the corner of the control compartment 3 through the transverse rod 322 arranged along the X-axis direction; the two ends of the connecting rod arranged along the Y-axis direction are connected to the connection between the transverse rod 322 and the corresponding vertical rod 321, so that a top air vent 33 is formed between the two groups of transverse rods 322, the connecting rod 323, and the control compartment 3, a back air vent is formed between the two groups of vertical rods 321, the top surface of the battery compartment 4, and the connecting rod 323, and a side air vent 34 is formed between the transverse rod 322, the vertical rod 321 corresponding to the transverse rod 322, and the control compartment 3, wherein the side air vent 34 is two groups;

[0065] After the entire energy storage system is connected in parallel along the X-axis direction and the Y-axis direction, the back air vents of two symmetrical groups of energy storage cabinets in the two groups of energy storage units are connected, and the side air vents 34 of two adjacent groups of energy storage cabinets in the same group of energy storage units are connected, so that the hot air in all cabinets can be discharged from the three openings formed by the heat dissipation channel 10, which greatly improves the heat dissipation efficiency, realizes gapless connection, and reduces space occupancy; it can be flexibly arranged according to the on-site space, thereby effectively reducing the occupied area.

[0066] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An energy storage cabinet, characterized in that: It includes a cabinet provided with an installation cavity, a partition installed in the cabinet and dividing the installation cavity into a control compartment and a battery compartment, a compartment door used for opening and closing the control compartment and provided with an air inlet, and a cabinet door used for opening and closing the battery compartment and provided on the same side as the compartment door; The control compartment is located above the battery compartment; An air outlet is arranged on the side of the installation cavity away from the door; an L-shaped groove is formed on the side of the control compartment away from the door and the side of the battery compartment away from the cabinet door.

2. An energy storage cabinet according to claim 1, characterized in that: A heat exchange module for exchanging heat between the control compartment and the battery compartment and connected to the air outlet is arranged in the control compartment.

3. An energy storage cabinet according to claim 2, characterized in that: A ventilation duct which is in communication with the battery compartment and is used in conjunction with the heat exchange module is arranged on the partition.

4. The energy storage cabinet according to claim 2, characterized in that: The air inlet and the air outlet are respectively provided with shutters.

5. The energy storage cabinet according to claim 1, characterized in that: A hollow frame and filtering louvers installed on the hollow frame are arranged on the L-shaped groove.

6. The energy storage cabinet according to claim 5, characterized in that: The hollow frame includes two sets of brackets arranged in parallel and coplanar with the outer side of the control compartment and the outer side of the battery compartment, and a connecting rod arranged between the two sets of brackets and connected to the two sets of brackets; A side air vent connected to the air outlet is formed between the bracket and the control compartment on the side close to each other, a top air vent connected to the air outlet is formed between the top of the bracket and the control compartment on the side close to each other, and two groups of brackets and connecting rods cooperate to form a back air vent connected to the air outlet.

7. An energy storage cabinet according to claim 6, characterized in that: The bracket is L-shaped, including a vertical rod installed on the top of the battery compartment and on the same vertical plane as the side of the battery compartment away from the cabinet door, and a transverse rod connected to the top of the vertical rod and coplanar with the top surface of the cabinet; the two ends of the connecting rod are respectively connected to the connection between the transverse rod and the corresponding vertical rod.

8. An energy storage system, characterized in that: It comprises two groups of symmetrically arranged energy storage units; the energy storage units comprise a plurality of groups of energy storage cabinets arranged side by side and according to any one of claims 1 to 7; The energy storage cabinets in the two groups of energy storage units are symmetrically arranged and the air outlets are arranged on the sides close to each other; the two adjacent groups of energy storage cabinets are in contact and fit with each other.

9. An energy storage system according to claim 8, characterized in that: It also includes a connecting rod connecting two adjacent groups of energy storage cabinets.

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