Energy storage integrated device

Abstract

The utility model provides an energy storage integrated device which comprises a cabinet door and a cabinet body, the cabinet door is hinged to the cabinet body, the cabinet body is divided into a first containing unit and a second containing unit through a partition plate in the length direction, and the first containing unit and the second containing unit are divided into an upper compartment and a lower compartment through the partition plate; an upper compartment of the first accommodating unit is a system control cabin, and a lower compartment of the first accommodating unit is a battery cabin; the battery bin is sequentially provided with a plurality of battery modules connected in series from bottom to top, and the system control bin is sequentially provided with a power distribution module, an energy management module and a battery matching module from bottom to top; an upper compartment of the second accommodating unit is a temperature control cabin, and a lower compartment of the second accommodating unit is a power distribution cabin; a liquid cooling unit is installed in the temperature control bin, and a multifunctional ammeter, a fusing isolator, a direct current surge protector and a power conversion module are arranged in the power distribution bin.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and particularly relates to an energy storage integrated device. Background Art

[0002] With the adjustment of the global energy structure and the enhancement of environmental protection awareness, new energy technologies have developed rapidly and are increasingly widely used in the energy field. New energy technologies, especially the utilization of renewable energy such as solar energy and wind energy, not only provide new ways for energy supply but also pose higher requirements for energy storage technologies. As an important part of the new energy system, the performance of energy storage technology directly affects the stability and economy of the new energy system.

[0003] In energy storage technology, as an important energy storage device, the energy storage cabinet has been widely used in the industrial and commercial fields due to its unique advantages. Although the traditional energy storage container has a large capacity and a stable structure, in some specific scenarios, such as the industrial and commercial environment with limited space, its huge volume and weight have become the bottleneck of application. In contrast, the energy storage cabinet, due to its flexible and lightweight characteristics, can better meet the needs of these special scenarios.

[0004] However, although the energy storage cabinet has the advantages of flexibility and lightness, it also faces some technical challenges. First, due to its small volume, how to place enough battery modules inside the energy storage cabinet while improving the space utilization rate has become an urgent problem to be solved; second, the complex pipeline wiring system inside the energy storage cabinet not only increases the difficulty of maintenance but also affects the stability and safety of the system. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an energy storage integrated device, which improves the space utilization rate of the energy storage cabinet and simplifies the pipeline wiring system to meet the higher requirements of the industrial and commercial fields for energy storage technology.

[0006] The technical means adopted by the utility model to solve its technical problems is: an energy storage integrated device, the improvement lies in that it includes: a cabinet door and a cabinet body, the cabinet door and the cabinet body are hinged, wherein: along the length direction of the cabinet body, it is divided into a first accommodation unit and a second accommodation unit by a partition, and the first accommodation unit and the second accommodation unit are divided into an upper compartment and a lower compartment by the partition; the upper compartment of the first accommodation unit is a system control compartment, and the lower compartment is a battery compartment; several series-connected battery modules are installed in the battery compartment from bottom to top in sequence, and a power distribution module, an energy management module, and a battery selection module are installed in the system control compartment from bottom to top in sequence; the upper compartment of the second accommodation unit is a temperature control compartment, and the lower compartment is a power distribution compartment; a liquid cooling unit is installed in the temperature control compartment, and a multi-functional ammeter, a fuse disconnect switch, a DC surge protector, and a power conversion module are arranged in the power distribution compartment.

[0007] In the above technical solution, several indicator lights and an emergency stop switch are provided on the cabinet door opposite to the first accommodation unit. A heat dissipation port and a windproof plate are provided on the cabinet door opposite to the second accommodation unit. An auxiliary door that can be unfolded is provided behind the second accommodation unit. Heat dissipation ports, windproof plates and several fans are provided on the auxiliary door.

[0008] In the above technical solution, a liquid cooling pipeline is further provided on the cabinet body, where: the liquid cooling pipeline includes an inlet main pipeline, several battery pack inlet pipelines, an outlet main pipeline and several battery pack outlet pipes; one ends of the inlet main pipeline and the outlet main pipeline are respectively connected to the liquid cooling unit in the second accommodation unit, and the other ends extend along the top of the cabinet body to the wire grooves on both sides of the first accommodation unit; the battery pack inlet pipeline is connected to the water inlet of the battery pack, the battery pack outlet pipe is connected to the water outlet of the battery pack, and the water inlet and the water outlet are respectively arranged on both sides of the battery pack.

[0009] In the above technical solution, several fans are provided on the liquid cooling unit facing the auxiliary door. The several fans and the heat dissipation ports on the cabinet door and the heat dissipation ports on the auxiliary door form a heat dissipation channel. External air enters the heat dissipation channel from the air inlet of the second accommodation unit. The heat dissipation channel communicates with the left and right side walls of the liquid cooling unit, and the hot air flow to the space on the rear wall side of the second accommodation unit is accelerated by the action of the fans of the liquid cooling unit. Finally, the hot air is discharged from the air outlet by the fans on the auxiliary door.

[0010] In the above technical solution, an alarm module and a fire extinguishing module are further provided on the top of the cabinet body.

[0011] In the above technical solution, sealing rings are provided on the cabinet door and the auxiliary door, and the cabinet body presses the sealing rings against the cabinet door or the auxiliary door.

[0012] In the above technical solution, the battery module includes a module housing and a gas guide pipe. An explosion-proof valve is provided on the module housing. The gas guide pipe is connected to the module housing through the explosion-proof valve; a smoke exhaust pipeline and a smoke exhaust port are further provided on the cabinet. The smoke exhaust pipeline has exhaust holes. The gas guide pipe is connected to the smoke exhaust pipeline, and the exhaust holes are connected to the smoke exhaust port.

[0013] In the above technical solution, the battery modules are connected in series and then connected to the power distribution module. The PCS+ and PCS- wire harnesses led out from the power distribution module extend downward through the tooth flame-retardant wire groove on the left side wall of the first accommodation unit and are connected to the DC ports of the power conversion module in the second accommodation unit through the wire groove holes on the lower side.

[0014] In the above technical solution, the indicator light on the cabinet door and the wiring harness of the emergency stop switch are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module and the emergency stop interface of the power distribution module; the AC port wiring and the DC port wiring of the power conversion module are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module; the power cord harness and communication harness of the liquid cooling unit are wrapped by a wire tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the AC interface and communication interface of the power distribution module; the wire harnesses of the multi-functional ammeter, fuse isolator and DC surge protector are connected along the leftward width direction of the box body in the distribution bin and then the lead-out wire harness is fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module; the fan power supply, thermal relay wire and grounding protection wire of the auxiliary door fan pass through the wire groove hole on the lower side of the second accommodation unit, wherein the fan power supply and the thermal relay wire are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module.

[0015] The beneficial effects of the present utility model are as follows: The battery module and the control device are independently placed in the bin body to achieve electrical separation, improving the space utilization rate of the energy storage container; the battery bin conducts unified thermal management, improving the thermal management effect and reducing the risk of thermal runaway; the cabinet wiring is simple and not exposed, being more concise and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an energy storage integration device shown in an embodiment of the present application;

[0017] Figure 2 It is a front view of an energy storage integration device shown in an embodiment of the present application;

[0018] Figure 3 It is a rear view of an energy storage integration device shown in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with embodiments and drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts all fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to specific implementation situations. The various technical features in the creation of the present utility model can be interactively combined without conflicting with each other.

[0021] As mentioned above, with the continuous development and application of new energy technologies, energy storage cabinet technologies are also facing new opportunities and challenges. In order to further improve the performance and applicability of energy storage cabinets, the present application provides an energy storage integration device, aiming to improve space utilization rate and simplify the pipeline wiring system by optimizing the structural design of the energy storage cabinet, so as to meet the higher requirements for energy storage technologies in the industrial and commercial fields.

[0022] As Figure 1 shown is a schematic structural diagram of an energy storage integration device 1 provided by the present application, including a cabinet door 10 and a cabinet body 20. The cabinet door 10 and the cabinet body 20 are hinged, that is to say, the cabinet door 10 can be connected to the cabinet body 20 through a hinge shaft, and the cabinet door 10 can rotate around the hinge shaft to realize the opening and closing of the cabinet door 10 relative to the cabinet body 20.

[0023] In the embodiment of the present application, the shape of the cabinet body 20 is not specifically limited, and it can be exemplarily a Figure 1 cuboid shape as shown in, which can include six side walls, namely a first side wall, a second side wall, a third side wall, a fourth side wall, a fifth side wall and a sixth side wall. Among them, the first side wall and the second side wall are oppositely arranged, the third side wall and the fourth side wall are oppositely arranged, and the fifth side wall and the sixth side wall are oppositely arranged. In the present application, the direction from the first side wall to the second side wall can be defined as the first direction, the direction from the third side wall to the fourth side wall can be defined as the second direction, and the direction from the fifth side wall to the sixth side wall can be defined as the third direction.

[0024] In a possible implementation manner, a plurality of fine-tooth flame-retardant wire grooves are provided on the side wall of the cabinet body.

[0025] In addition, in the present application, the first side wall can be the front side wall. When the energy storage system is set in its application scenario, the front side wall can be arranged facing the user. In Figure 1In the energy storage cabinet shown, the cabinet door 10 can serve as the first side wall, which can make the size of the cabinet door 10 larger. Thus, when the cabinet door 10 is opened relative to the cabinet body 20, it is convenient to maintain the internal structure of the cabinet body 20.

[0026] When the first side wall is the front side wall, the second side wall can be the rear side wall. Additionally, the third side wall can be the left side wall, the fourth side wall can be the right side wall, the fifth side wall can be the top wall, and the sixth side wall can be the bottom wall. Based on this, in this application, the first direction can be the width direction of the cabinet body 20, the second direction is the length direction of the cabinet body 20, and the third direction is the height direction of the cabinet body 20. Usually, when the energy storage system is in normal use, the cabinet body 20 can be placed on the ground along its height direction.

[0027] Continue to refer to Figure 1 , where: along the length direction of the cabinet body 20, it is divided into a first accommodation unit 201 and a second accommodation unit 202 by a partition, and the first accommodation unit 201 and the second accommodation unit 202 are further divided into an upper compartment and a lower compartment by the partition.

[0028] The upper compartment of the first accommodation unit 201 is the system control compartment 2011, and the lower compartment is the battery compartment 2012; several series-connected battery modules (UPS) 30 are installed in the battery compartment 2012 from bottom to top in sequence, and a power distribution module (PDU) 40, an energy management module (EMS) 50, and a battery selection module (UPS) 60 are installed in the system control compartment 2011 from bottom to top in sequence.

[0029] Among them, the battery modules 30 are connected in series and then connected to the power distribution module 40. The PCS+ and PCS- wiring harnesses led out from the power distribution module 40 extend downward through the tooth flame-retardant wire groove on the left side wall of the first accommodation unit 201 and are connected to the DC ports of the power conversion module 80 in the second accommodation unit 202 through the lower side wire groove holes.

[0030] In a possible implementation manner, as Figure 2 shown, several indicator lights 101 and an emergency stop switch 102 are provided on the cabinet door 10 opposite to the first accommodation unit 201, a heat dissipation port 103 and a wind protection plate 104 are provided on the cabinet door 10 opposite to the second accommodation unit 201, an auxiliary door 105 that can be unfolded is provided behind the second accommodation unit, and a heat dissipation port 1051, a wind protection plate 1052, and several fans are provided on the auxiliary door.

[0031] The upper compartment of the second accommodation unit 202 is the temperature control compartment 2021, and the lower compartment is the power distribution compartment 2022; a liquid cooling unit 70 is installed in the temperature control compartment 2021, and a multi-functional ammeter, a fuse disconnect switch, a DC surge protector, and a power conversion module (PCS) 80 are provided in the power distribution compartment 2022.

[0032] Among them, the wire harness of the indicator light 101 and the emergency stop switch 102 on the cabinet door 20 is fixed by a winding tube, extends upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit 202, and is connected to the interface of the energy management module 50 and the emergency stop interface of the power distribution module 40.

[0033] The AC port wiring and DC port wiring of the power conversion module 80 are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit 202, and are connected to the interface of the energy management module 50.

[0034] The power wire harness and communication wire harness of the liquid cooling unit 70 are wrapped by a wire tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit 202, and are connected to the AC interface and communication interface of the power distribution module 40.

[0035] The wire harnesses of the multi-functional ammeter, fuse disconnect switch and DC surge protector are connected along the leftward width direction of the box body inside the power distribution bin 2022 and then the lead-out wire harness is fixed by a winding tube, extends upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit 202, and is connected to the interface of the energy management module 50.

[0036] The fan power supply, thermal relay wire and grounding protection wire of the auxiliary door fan pass through the wire groove hole on the lower side of the second accommodation unit. Among them, the fan power supply and thermal relay wire are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module 50.

[0037] Since the battery module will generate combustible gas during thermal runaway, this combustible gas has a high risk of combustion and explosion. In order to ensure the safety of use of the energy storage system, this combustible gas can be discharged outside the cabinet.

[0038] In a possible implementation, the number of the battery modules 30 is 5. The battery module 30 may include a module housing and a gas guide pipe. The module housing may be provided with an explosion-proof valve, and the gas guide pipe may be connected to the module housing through the explosion-proof valve. In addition, the cabinet may be provided with a smoke exhaust duct and a smoke exhaust port. The smoke exhaust duct has exhaust holes. The gas guide pipe may be connected to the smoke exhaust duct, and the exhaust holes are connected to the smoke exhaust port. In this way, a smoke exhaust channel can be formed between the battery module and the cabinet, so that the combustible gas generated by the battery module is discharged to the smoke exhaust duct through the gas guide pipe, and then discharged outside the cabinet, so as to reduce the concentration of combustible gas in the cabinet and block oxygen from entering the cabinet, thereby reducing the risk of combustion and explosion.

[0039] Also, since the temperature of the battery module 30 will rise during thermal runaway. In a possible implementation, a liquid cooling pipe is further provided on the cabinet body 20, where:

[0040] The liquid cooling pipeline includes a main liquid inlet pipeline A, several battery pack liquid inlet pipelines, a main liquid outlet pipeline B, and several battery pack liquid outlet pipes.

[0041] One ends of the main liquid inlet pipeline and the main liquid outlet pipeline are respectively connected to the liquid cooling unit in the second accommodation unit, and the other ends extend along the top of the cabinet body to the wire grooves on both sides of the first accommodation unit.

[0042] The battery pack liquid inlet pipeline is connected to the water inlet of the battery pack, the battery pack liquid outlet pipe is connected to the water outlet of the battery pack, and the water inlet and the water outlet are respectively arranged on both sides of the battery pack.

[0043] In another possible implementation, a plurality of fans are arranged on the liquid cooling unit 70 facing the auxiliary door, and the plurality of fans and the heat dissipation openings 103 of the cabinet door and the heat dissipation openings 1051 of the auxiliary door 105 form a heat dissipation channel.

[0044] When external air enters the heat dissipation channel from the air inlet of the second accommodation unit 201, the heat dissipation channel communicates with the left and right side walls of the liquid cooling unit 70, and the hot air flow is accelerated towards the space on the rear wall side of the second accommodation unit 201 through the action of the liquid cooling unit fan, and finally the hot air is discharged from the air outlet by the auxiliary door fan.

[0045] Through the above embodiments, the battery module and the control system are independently placed in the bin body to achieve electrical separation. Both bin bodies are located in the first accommodation unit, improving the space utilization rate of the energy storage container; at the same time, water cooling and air cooling are used to uniformly thermally manage the battery bin, improving the thermal management effect and reducing the risk of thermal runaway.

[0046] In one possible implementation, an alarm module and a fire extinguishing module are further arranged on the top of the cabinet body 20. The alarm module includes a temperature sensor and a smoke sensor for collecting alarm information; an external alarm bell, a sound and light alarm, and corresponding manual stop devices, such as an emergency stop button, an emergency start button, and a manual / automatic switching device. The fire extinguishing module includes a storage barrel for a perfluoromethylcyclohexanone gas cylinder, a gas transmission pipe for transmitting perfluoromethylcyclohexanone, and corresponding valves.

[0047] In one possible implementation, sealing rings are arranged on the cabinet door and the auxiliary door. When the cabinet door 10 is connected to the cabinet body 20, the cabinet body 20 can press the sealing ring against the cabinet door 10 or the auxiliary door 105, so that under the extrusion effect, the sealing ring fills the gap between the cabinet door 10 and the cabinet body 20 to achieve the sealing effect of the sealing ring. In this way, the dust or rainwater entering the interior of the cabinet body 20 can be effectively reduced, thereby improving the reliability of the energy storage system.

[0048] In this application, the battery module and the control device are independently placed in the bin to achieve electrical separation, thereby improving the space utilization rate of the energy storage container; through unified thermal management of the battery bin, the thermal management effect is improved, and the risk of thermal runaway is reduced; the cabinet wiring is simple and not exposed, making it more concise and beautiful.

[0049] The above is a specific description of the preferred embodiment of the present utility model, but the present utility model is not limited to the described embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An energy storage integrated device, characterized in that, The energy storage integrated device includes a cabinet door and a cabinet body, and the cabinet door is hinged to the cabinet body, where: Along the length direction of the cabinet body, it is divided into a first accommodation unit and a second accommodation unit by a partition board, and the first accommodation unit and the second accommodation unit are divided into an upper compartment and a lower compartment by the partition board; The upper compartment of the first accommodation unit is a system control bin, and the lower compartment is a battery bin; several series-connected battery modules are installed in the battery bin from bottom to top, and a power distribution module, an energy management module, and a battery selection module are installed in the system control bin from bottom to top; The upper compartment of the second accommodation unit is a temperature control bin, and the lower compartment is a power distribution bin; a liquid cooling unit is installed in the temperature control bin, and a multi-functional electricity meter, a fuse isolator, a DC surge protector, and a power conversion module are arranged in the power distribution bin.

2. The energy storage integrated device according to claim 1, wherein Several indicator lights and an emergency stop switch are arranged on the cabinet door opposite to the first accommodation unit, a heat dissipation port and a wind guard are arranged on the cabinet door opposite to the second accommodation unit, an auxiliary door that can be unfolded is arranged behind the second accommodation unit, and a heat dissipation port, a wind guard, and several fans are arranged on the auxiliary door.

3. The energy storage integrated device according to claim 1, wherein A liquid cooling pipeline is also arranged on the cabinet body, where: The liquid cooling pipeline includes an inlet main pipeline, several battery pack inlet pipelines, an outlet main pipeline, and several battery pack outlet pipes; One ends of the inlet main pipeline and the outlet main pipeline are respectively connected to the liquid cooling unit in the second accommodation unit, and the other ends extend along the top of the cabinet body to the wire grooves on both sides of the first accommodation unit; The battery pack inlet pipeline is connected to the water inlet of the battery pack, the battery pack outlet pipe is connected to the water outlet of the battery pack, and the water inlet and the water outlet are respectively arranged on both sides of the battery pack.

4. The energy storage integrated device according to claim 2, wherein Several fans are arranged on the liquid cooling unit facing the auxiliary door, and the several fans and the heat dissipation ports of the cabinet door and the heat dissipation ports of the auxiliary door form a heat dissipation channel. External air enters the heat dissipation channel from the air inlet of the second accommodation unit. The heat dissipation channel communicates with the left and right side walls of the liquid cooling unit, and the hot air flow to the space on the rear wall side of the second accommodation unit is accelerated by the action of the fans of the liquid cooling unit, and finally the hot air flows out of the air outlet by the fans of the auxiliary door.

5. The energy storage integrated device according to claim 1, wherein An alarm module and a fire extinguishing module are also arranged on the top of the cabinet body.

6. The energy storage integrated device according to claim 2, wherein Sealing rings are arranged on the cabinet door and the auxiliary door, and the cabinet body presses the sealing rings against the cabinet door or the auxiliary door.

7. The energy storage integrated device according to claim 1, wherein The battery module includes a module housing and a gas guide pipe. An explosion-proof valve is arranged on the module housing, and the gas guide pipe is connected to the module housing through the explosion-proof valve; A smoke exhaust pipeline and a smoke exhaust port are also arranged on the cabinet body. The smoke exhaust pipeline has exhaust holes, the gas guide pipe is connected to the smoke exhaust pipeline, and the exhaust holes are connected to the smoke exhaust port.

8. The energy storage integrated device according to claim 1, characterized in that, Several fine-tooth flame-retardant wire grooves are arranged on the cabinet body.

9. The energy storage integrated device according to claim 8, wherein After the battery modules are connected in series, they are connected to the power distribution module. The PCS+ and PCS- wire harnesses led out from the power distribution module extend downward through the tooth flame-retardant wire groove on the left side wall of the first accommodation unit and are connected to the DC ports of the power conversion module in the second accommodation unit through the lower side wire groove holes.

10. The energy storage integration device according to claim 2, characterized in that, The indicator light on the cabinet door and the emergency stop switch wire harness are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module and the emergency stop interface of the power distribution module; The AC port wiring and DC port wiring of the power conversion module are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module; The power wire harness and communication wire harness of the liquid cooling unit are wrapped by a wire tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the AC interface and communication interface of the power distribution module; The wire harnesses of the multi-function electric meter, fuse disconnect switch and DC surge protector are connected along the left width direction of the box body inside the distribution bin and then the lead-out wire harness is fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module; The fan power supply, thermal relay wire and ground protection wire of the auxiliary door fan pass through the wire groove hole on the lower side of the second accommodation unit, wherein the fan power supply and thermal relay wire are fixed by a winding tube, extend upward along the fine-tooth flame-retardant wire groove on the left side wall of the second accommodation unit, and are connected to the interface of the energy management module.

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