Liquid cooling and energy storage integrated cabinet

Abstract

The utility model relates to the technical field of energy storage, and discloses a liquid cooling and energy storage integrated cabinet. Comprising a cabinet body, and the interior of the cabinet body is divided into a battery chamber and an electrical chamber; a battery rack is fixed in the battery chamber, a plurality of liquid cooling battery packs are fixed on the battery rack, and liquid cooling pipelines communicated with liquid cooling plates of the liquid cooling battery packs are fixed on the battery rack; an electrical equipment mounting rack is fixed in the electrical room; a cabinet body distribution box, a bidirectional converter, a liquid cooling unit, a high-voltage box, a fire-fighting controller, a battery management master controller, an energy management unit, a UPS (Uninterrupted Power Supply) and a travel switch are mounted on the electrical equipment mounting rack; the liquid cooling unit is communicated with the liquid cooling pipeline, and the high-voltage box is communicated with the positive electrode and the negative electrode of the battery pack. The liquid cooling and energy storage integrated cabinet is compact in structure; modular design is adopted; the capacity is large; the capacity topology is simple and can be used in a single machine or a combined cabinet; disassembly, assembly and maintenance are convenient, and operation and maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and in particular to a liquid-cooled energy storage integrated cabinet. Background Art

[0002] The description of the background technology in the present utility model belongs to the related technology related to the present utility model, which is only used to illustrate and facilitate the understanding of the content of the present utility model, and should not be understood as the applicant explicitly believes or presumed that the applicant believes that it is the prior art of the present utility model on the filing date of the first application.

[0003] At present, the increase in renewable energy power generation will impact the stability of the power grid system, and energy storage will become an inevitable requirement due to the mismatch between electricity supply and demand.

[0004] The existing integrated energy storage cabinets have a low level of sealing protection. The ventilation and heat dissipation of the cabinet allows external airflow to be introduced into the energy storage cabinet. The components in the cabinet are easily contaminated with dust, which affects the heat dissipation effect. In addition, the energy storage battery components have higher temperatures during high-load operation, and each battery pack cannot be protected independently, which has certain defects. In addition, the existing liquid-cooled integrated energy storage cabinets have a complex structure and are not easy to control. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a liquid-cooled energy storage integrated cabinet. The liquid-cooled energy storage integrated cabinet of the utility model has a compact structure, modular design, large capacity, simple capacity topology, and can be used as a single machine or in combination with cabinets; it is easy to disassemble and repair, and has low operation and maintenance costs.

[0006] The purpose of the utility model is achieved through the following scheme:

[0007] A liquid-cooled energy storage integrated cabinet comprises a cabinet body, wherein the interior of the cabinet body is divided into a battery room and an electrical room;

[0008] A battery rack is fixed in the battery room, a plurality of liquid-cooled battery packs are fixed on the battery rack, and a liquid cooling pipe connected to the liquid cooling plate of the liquid-cooled battery pack is fixed on the battery rack;

[0009] The electrical room is fixed with an electrical equipment mounting frame, on which a cabinet distribution box, a bidirectional converter, a liquid cooling unit, a high-voltage box, a fire controller, a battery management master control, an energy management unit, a UPS and a travel switch are installed;

[0010] The liquid cooling unit is connected to the liquid cooling pipeline, and the high-voltage box is connected to the positive and negative electrodes of the battery pack.

[0011] Furthermore, a lighting device is fixed above the battery rack.

[0012] Furthermore, the battery room is of drawer type, and the electrical room is of frame grid type.

[0013] Furthermore, the cabinet body adopts an integrated frame welding structure.

[0014] Furthermore, fork transport holes are provided at the bottom of the cabinet in two directions of the length and width of the cabinet.

[0015] Furthermore, an electrical room front door and a battery room cabinet door are provided at the front of the cabinet, and an electrical room rear door is provided at the rear of the cabinet.

[0016] Furthermore, ventilation shutters are respectively provided on the upper and lower parts of the front door of the electrical room, a first threshold is provided at the lower end of the front door of the electrical room, and a fire controller, a battery management main control and an energy management unit are provided in the middle part of the front door of the electrical room; a fan and a ventilation dust net are provided on the rear door of the electrical room, and a second threshold is provided at the lower end of the rear door of the electrical room.

[0017] Furthermore, the battery room cabinet door includes an indicator light, and a third threshold is provided at the lower end of the battery room cabinet door.

[0018] Furthermore, the battery room adopts a four-sided insulation design.

[0019] Furthermore, a temperature sensor is provided in the electrical room.

[0020] By means of the above scheme, the utility model has at least the following beneficial effects:

[0021] The utility model discloses a liquid-cooled energy storage integrated cabinet with a compact structure and modular design. The system has a high volume density, the internal equipment is easy to install and disassemble, and the operation and maintenance cost is low. The capacity topology is simple, and it can be used in a single cabinet or in multiple cabinets, which makes it easy to increase the capacity. The thermal management efficiency is high, and the one cabinet has two chambers. The battery room and the electrical room are separated, which is safer and more efficient. The battery system is cooled by a liquid cooling unit. At the same time, the battery room is insulated all around and insulated from the electrical room and the external connection to reduce the heat disturbance in the battery room of the electrical room. The electrical room is cooled by natural convection and forced air cooling under intelligent control. The cabinet is easy to transport, and the installation base is provided with horizontal fork holes in two directions to meet the transportation of small special sections in two directions. The humanized man-machine interface is set, and the system docking interface is installed at the front door of the electrical room. The equipment operation information can be obtained and the equipment can be conveniently controlled and adjusted without opening the cabinet door. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for describing the embodiments:

[0023] Figure 1 This is a front structural diagram of a liquid-cooled energy storage integrated cabinet of the utility model;

[0024] Among them, 1-outdoor cabinet; 2-liquid-cooled battery pack; 3-liquid cooling pipe; 4-temperature, humidity and water immersion installation area; 5-cabinet distribution box; 6-bidirectional converter; 7-liquid cooling unit; 8-high-voltage box; 9-fire controller; 10-battery management master control; 11-energy management unit; 12-UPS; 13-travel switch; 14-lighting.

[0025] Figure 2 This is a rear view structural diagram of a liquid-cooled energy storage integrated cabinet of the utility model;

[0026] Among them, 1-outdoor cabinet; 2-liquid-cooled battery pack; 3-liquid cooling pipe; 4-temperature, humidity and water immersion installation area; 5-cabinet distribution box; 6-bidirectional converter; 7-liquid cooling unit; 8-high-voltage box; 9-fire controller; 10-battery management master control; 11-energy management unit; 12-UPS; 13-travel switch; 14-lighting; 15-UPS backup battery; 16-electrical installation board.

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of a liquid-cooled energy storage integrated cabinet of the utility model;

[0028] Among them, 1-outdoor cabinet; 101-cabinet frame; 102-battery rack; 103-battery room cabinet door; 104-installation base; 105-wire binding rack; 106-electrical room front door; 107-electrical room rear door; 108-electrical equipment installation frame.

[0029] Figure 4 This is another three-dimensional structural schematic diagram of a liquid-cooled energy storage integrated cabinet of the utility model;

[0030] Among them, 1-outdoor cabinet; 101-cabinet frame; 102-battery rack; 103-battery room cabinet door; 104-installation base; 105-wire binding rack; 106-electrical room front door; 107-electrical room rear door; 108-electrical equipment installation frame.

[0031] Figure 5 This is a structural diagram of the installation base of a liquid-cooled energy storage integrated cabinet of the utility model;

[0032] Among them, 104 is a mounting base; 1041 is a first direction fork transport hole; 1042 is an external grounding point; 1043 is a second direction fork transport hole.

[0033] Figure 6 This is a structural diagram of the front door of the electrical room of a liquid-cooled energy storage integrated cabinet of the utility model;

[0034] Among them, 106-front door of the electrical room; 1061-front door panel of the electrical room; 1062-reinforcement pipe; 1063-hinge; 1064-threshold 1; 1065-ventilation shutters; 1066-link lock; 9-fire controller; 10-battery management main control; 11-energy management unit.

[0035] Figure 7 This is a structural diagram of a battery room door of a liquid-cooled energy storage integrated cabinet of the utility model;

[0036] Among them, 103-battery room cabinet door; 1031-battery room door panel; 1032-cabinet door insulation cotton guard plate; 1033-indicator light; 1034-link lock; 1035-threshold 3; 1036-hinge.

[0037] Figure 8 This is a structural diagram of the rear door of the electrical room of a liquid-cooled energy storage integrated cabinet of the utility model.

[0038] Among them, 107-rear door of the electrical room; 1071-rear door panel of the electrical room; 1072-fan; 1073-ventilation dust net; 1074-connecting rod lock; 1075-threshold 2; 1076-hinge. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below in conjunction with the embodiments. It should be understood that the embodiments are intended to make it easier for those skilled in the art to understand the technical solution of the present invention, and cannot be used as a limitation on the protection scope of the present invention.

[0040] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the utility model, and different embodiments can be replaced or combined, so the utility model can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the utility model should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, even though the embodiment may not be clearly recorded in the following text.

[0041] A liquid-cooled energy storage integrated cabinet comprises a cabinet body 1, wherein the interior of the cabinet body 1 is divided into a battery room and an electrical room;

[0042] A battery rack 102 is fixed in the battery room, a plurality of liquid-cooled battery packs 2 are fixed on the battery rack 102, and a liquid cooling pipe 3 connected to the liquid cooling plate of the liquid-cooled battery pack 2 is fixed on the battery rack 102;

[0043] The electrical room is fixed with an electrical equipment mounting frame 108, on which a cabinet 1 distribution box 5, a bidirectional converter 6, a liquid cooling unit 7, a high-voltage box 8, a fire controller 9, a battery management main control 9, an energy management unit 11, a UPS 12 and a travel switch 13 are installed; a UPS backup battery 15 is provided at the rear side of the UPS 12; an electrical installation board 16 is provided below the UPS backup battery 15;

[0044] The liquid cooling unit 7 is connected to the liquid cooling pipe 3, and the high-voltage box 8 is connected to the positive and negative electrodes of the battery pack.

[0045] In some embodiments of the present invention, a lighting device 14 is fixed above the battery rack 102 .

[0046] In some embodiments of the utility model, the battery chamber is of drawer type, and the electrical chamber is of frame grid type.

[0047] In some embodiments of the present invention, the cabinet 1 adopts an integrated frame welding structure.

[0048] In some embodiments of the present invention, the bottom of the cabinet 1 is provided with fork transport holes in both the length and width directions of the cabinet 1 .

[0049] In some embodiments of the utility model, the entire side of the cabinet 1 forms a cabinet frame 101, the front of which is provided with an electrical room front door 106 and a battery room cabinet door 103, and the back of the cabinet 1 is provided with an electrical room rear door 107.

[0050] In some embodiments of the utility model, the electrical room front door 106 is provided with an electrical room front door panel 1061, which is hinged to the frame on the side of the cabinet through a hinge 1063, and the upper and lower parts of the electrical room front door panel 1061 are respectively provided with ventilation shutters 1065, and the electrical room front door panel 1061 is surrounded by a reinforcement pipe 1062; the opening side of the electrical room front door panel 1061 is locked with the side frame through a connecting rod lock 1066; the lower end of the electrical room front door 106 is provided with a first Threshold 1064, a fire controller 9, a battery management main control 9 and an energy management unit 11 are provided in the middle of the front door 106 of the electrical room; an electrical room rear door panel 1071 is provided on the rear door 107 of the electrical room, a fan 1072 and a ventilation dustproof net 1073 are provided on the rear door panel 1071 of the electrical room, a second threshold 1075 is provided at the lower end of the rear door 107 of the electrical room, the rear door panel 1071 of the electrical room is connected to the side frame by a hinge 1076, and the door opening side is locked with the side frame by a connecting rod lock 1074.

[0051] In some embodiments of the utility model, the battery room door 103 includes an indicator light 1033, and a door insulation cotton guard plate 1032 is provided on the battery room door 103; the battery room door 103 is connected to the side frame by a hinge 1036, and the door opening side is locked by a connecting rod lock 1034; the lower end of the battery room door 103 is provided with a third threshold 1035. The temperature, humidity and water immersion installation area 4 is provided inside the battery room door; and a wire binding rack 105 is fixed on the side wall of the battery room.

[0052] In some embodiments of the present invention, the battery chamber adopts a four-sided insulation design.

[0053] In some embodiments of the present invention, a temperature sensor is provided in the electrical room.

[0054] The energy storage system-related battery system, fire protection system, thermal management system, power distribution system, etc. are integrated into one through the cabinet design concept and installed in the cabinet. A modular approach is adopted, and one cabinet is divided into two rooms, the battery room and the electrical room. The battery layout in the battery room adopts a drawer-type design, which is easy to install and disassemble and has high space utilization. The electrical room adopts a frame grid design, and various electrical equipment are arranged regularly, which is safe and reliable.

[0055] The cabinet 1 adopts an integrated frame welding structure with high strength, good sealing and beautiful appearance. The battery room adopts a four-sided (upper, lower, front and rear) insulation design (double-layer sheet metal with rock wool in the middle), the battery rack 102 and the electrical equipment mounting rack 108 are welded in the cabinet, and a weather-resistant waterproof sealing strip is set between the cabinet door and the cabinet 1 to ensure the overall sealing of the cabinet 1. The installation base 104 at the bottom of the cabinet 1 is provided with fork holes in the length and width of the cabinet 1 to meet the transportation and installation of the cabinet 1 in different sections. Figure 5 , a first direction fork hole 1041 and a second direction fork hole 1043 are respectively provided on the frame plate in the length direction and the width direction of the mounting base 104, and an external grounding point 1042 is also provided on the frame plate in the length direction. The thermal management of the battery room adopts the liquid cooling unit 7 to drive the coolant through the liquid cooling pipe 3 to enter the bottom liquid cooling plate of each battery pack to perform thermal management of the battery, wherein the liquid cooling pipes 3 between the 9 battery packs are arranged in parallel, so that the cooling heat flowing through each battery pack is better balanced. The thermal management of the electrical room adopts the front airflow and rear airflow mode. During the operation of the liquid cooling unit 7, the bidirectional converter 6 and other equipment in the electrical room, the internal axial flow fan will suck air from the front, resulting in a decrease in the air pressure in the front of the electrical room. The natural wind from the outside enters the front of the electrical room through the blinds, and the heat in the electrical room is mainly gathered at the back of the electrical room, and is naturally discharged through the ventilation holes of the rear door 107 of the electrical room. At the same time, if the temperature sensor detects that the internal temperature exceeds 60, the fan will be started for forced exhaust and heat dissipation.

[0056] 4- Temperature, humidity and water immersion installation area; 5- Cabinet distribution box 5; 6- Bidirectional converter 6; 7- Liquid cooling unit 7; 8- High voltage box 8; 9- Fire controller 9; 10- Battery management main control 10; 11- Energy management unit 11; 12- UPS 12; 13- Travel switch 13; 14- Lighting.

[0057] The temperature and water immersion installation area 4 is mainly used for installing the temperature, humidity and water immersion sensors of the liquid cooling cabinet, which is mainly responsible for real-time monitoring of the temperature, humidity and water immersion in the cabinet and feeding back the relevant signals to the energy management unit 11;

[0058] The panel of the cabinet distribution box 5 is installed with power terminals, auxiliary power terminals in the cabinet, electrical protection circuit breakers, etc. The cabinet is installed with transformers, grounding copper bars, switching power supplies and other devices, which are mainly used for the protection and distribution of auxiliary power inside the cabinet;

[0059] The bidirectional converter 6 is mainly a bidirectional conversion unit for the system AC and DC, and is a conversion hub for interconnecting the battery system and the power grid;

[0060] The high voltage box 8 contains fuses, Hall sensors, contactors, circuit breakers and other devices, mainly a battery DC side protection unit, which can actively cut off the battery DC side circuit when a fault occurs;

[0061] The liquid cooling unit 7 is mainly used for cooling the liquid-cooled battery pack 2. The liquid inlet and outlet of the liquid cooling unit 7 are connected to the liquid cooling pipe 3. The liquid cooling unit 7 drives the flow of the coolant to achieve heat dissipation of the liquid-cooled battery pack 2.

[0062] The fire controller 9 is mainly used to receive smoke, temperature, gas and other signals in the cabinet, issue relevant fire strategies and upload fire signals;

[0063] The battery management main control 10 receives the collected information of a single cell in each battery pack and the collected information inside the high-voltage box 8, and compares and executes relevant strategies and fault outputs according to the relevant information;

[0064] The energy management unit 11 can communicate with the battery unit master control 10, the fire controller 9, the bidirectional converter 6 and other devices, and receive the grid-side dispatch, and send it to the battery system to execute the corresponding charging and discharging strategy;

[0065] UPS12 is mainly used for backup power supply of important devices such as energy management unit 11, battery unit master control 10, fire controller 9, etc. in the cabinet;

[0066] The travel switch 13 and the lighting 14 are installed on the top of each cabinet door to monitor the closing status of the cabinet door. When the cabinet door is closed, the travel switch 13 and the lighting 14 are turned off. At the same time, the travel switch contact signal is fed back to the battery unit main control 10. When the cabinet door is opened, the travel switch 13 and the lighting 14 are turned on. At the same time, the travel switch contact signal is fed back to the battery unit main control 10.

[0067] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A liquid-cooled energy storage integrated cabinet, characterized in that: It comprises a cabinet, wherein the interior of the cabinet is divided into a battery room and an electrical room; A battery rack is fixed in the battery room, a plurality of liquid-cooled battery packs are fixed on the battery rack, and a liquid cooling pipe connected to the liquid cooling plate of the liquid-cooled battery pack is fixed on the battery rack; The electrical room is fixed with an electrical equipment mounting frame, on which a cabinet distribution box, a bidirectional converter, a liquid cooling unit, a high-voltage box, a fire controller, a battery management master control, an energy management unit, a UPS and a travel switch are installed; The liquid cooling unit is connected to the liquid cooling pipeline, and the high-voltage box is connected to the positive and negative electrodes of the battery pack.

2. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: A lighting device is fixed above the battery rack.

3. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: The battery room is of drawer type, and the electrical room is of frame grid type.

4. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: The cabinet body adopts an integrated frame welding structure.

5. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: The bottom of the cabinet is provided with fork transport holes in two directions of the length and width of the cabinet.

6. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: The front of the cabinet is provided with an electric room front door and a battery room cabinet door, and the back of the cabinet is provided with an electric room rear door.

7. The liquid-cooled energy storage integrated cabinet according to claim 6, characterized in that: The upper and lower parts of the front door of the electrical room are respectively provided with ventilation shutters, a first threshold is provided at the lower end of the front door of the electrical room, a fire controller, a battery management main control and an energy management unit are provided in the middle of the front door of the electrical room; a fan and a ventilation dustproof net are provided on the rear door of the electrical room, and a second threshold is provided at the lower end of the rear door of the electrical room.

8. The liquid-cooled energy storage integrated cabinet according to claim 6, characterized in that: The battery room cabinet door comprises an indicator light, and a third threshold is arranged at the lower end of the battery room cabinet door.

9. The liquid-cooled energy storage integrated cabinet according to claim 6, characterized in that: The battery room adopts a four-sided insulation design.

10. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: A temperature sensor is arranged in the electrical room.

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