Optical storage all-in-one machine

Abstract

The utility model relates to an optical storage all-in-one machine which comprises a cabinet body, two or more liquid cooling battery modules, two or more PCS energy storage converters, two or more DCDC photovoltaic converters and a frequency conversion liquid cooling unit. A first cabinet door is hinged to the open end of the cabinet body, an air inlet is formed in the first cabinet door, an air outlet is formed in the rear wall of the cabinet body, and the air inlet is opposite to the air outlet; a liquid cooling water inlet pipe and a liquid cooling water return pipe are arranged in the second cavity; the water outlet end of the liquid cooling water inlet pipe is communicated with the water inlets of the more than two liquid cooling battery modules, the water inlet end of the liquid cooling water return pipe is communicated with the water outlets of the more than two liquid cooling battery modules, and cooling liquid is suitable for flowing into the liquid cooling battery modules from the water inlets for heat dissipation and flowing out from the water outlets to form cooling liquid circulation; the water outlet end of the liquid cooling water return pipe is communicated with the water inlet end of the liquid cooling water inlet pipe through the frequency conversion liquid cooling unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro-grid, in particular to a light storage integrated machine. BACKGROUND

[0002] The photovoltaic energy storage integrated energy conversion device (referred to as light storage integrated machine) is a device applied to a photovoltaic and energy storage combined power generation system to realize direct current / alternating current power conversion. The light storage integrated machine adopts power electronic control technology to coordinate and control the output of photovoltaic and energy storage batteries, suppresses the power fluctuation of photovoltaic batteries, and outputs alternating current power meeting standard requirements to supply power to a load through energy storage conversion technology.

[0003] In order to avoid that electronic devices and electrical elements are exposed to air to attach a large amount of dust and other impurities, the outdoor light storage integrated machine is generally provided with a cabinet to isolate and protect the electronic devices and electrical elements. However, during the operation of the device, the heat generated by the electrical elements increases the burden of the device. If the heat dissipation effect of the cabinet is not strong, the long-time operation of the device in a high-temperature state increases the possibility of failure, and further increases the possibility of fire caused by short circuit of the device. SUMMARY

[0004] Therefore, the present application provides a light storage integrated machine.

[0005] According to an aspect of the present application, a light storage integrated machine is provided, which comprises a cabinet, two or more liquid-cooled battery modules, two or more PCS energy storage converters, two or more DCDC photovoltaic converters, and a variable-frequency liquid cooling unit.

[0006] The cabinet is provided with a cavity with an open end. The cabinet is provided with a first partition plate and a second partition plate. The first partition plate and the second partition plate are adapted to divide the cavity of the cabinet into a first chamber, a second chamber, and a third chamber.

[0007] The two or more DCDC photovoltaic converters and the two or more PCS energy storage converters are sequentially and layerwisely arranged in the first chamber. The two or more liquid-cooled battery modules are sequentially and layerwisely arranged in the second chamber. The variable-frequency liquid cooling unit is arranged in the third chamber.

[0008] The open end of the cabinet is hingedly connected with a first cabinet door. The first cabinet door is matched with the first chamber and is adapted to cover the first chamber. The first cabinet door is provided with an air inlet. The rear wall of the cabinet is provided with an air outlet. The air inlet and the air outlet are oppositely arranged and are communicated through the first chamber.

[0009] The second chamber is provided with a liquid cooling water inlet pipe and a liquid cooling water return pipe. The water outlet end of the liquid cooling water inlet pipe is communicated with the water inlets of the two or more liquid-cooled battery modules. The water inlet end of the liquid cooling water return pipe is communicated with the water outlets of the two or more liquid-cooled battery modules. The cooling liquid is adapted to flow into the liquid-cooled battery modules from the water inlets to dissipate heat and flow out from the water outlets to form a cooling liquid circulation.

[0010] The water outlet end of the liquid cooling return pipe is communicated with the water inlet end of the liquid cooling inlet pipe through the variable frequency liquid cooling unit.

[0011] In a possible implementation, the plane in which the first partition plate is located is perpendicular to the plane in which the second partition plate is located; and the third chamber is located above the second chamber.

[0012] In a possible implementation, the first chamber is provided with an air extraction fan, an air extraction side of the air extraction fan faces the air inlet, and an air outlet side of the air extraction fan faces the air outlet, which is suitable for introducing air from the air inlet into the first chamber and leading air out of the air outlet.

[0013] In a possible implementation, the air inlet of the first cabinet door is provided with a louver.

[0014] In a possible implementation, the opening end of the cabinet body is hinged with a second cabinet door, the second cabinet door is matched with the second chamber and the third chamber, and is suitable for covering the second chamber and the third chamber.

[0015] In a possible implementation, the second chamber is provided with two or more mounting brackets; the number of the mounting brackets is matched with the number of the liquid cooling battery modules, and the liquid cooling battery modules are placed on the mounting brackets.

[0016] In a possible implementation, the liquid cooling inlet pipe comprises two or more liquid inlet vertical pipes and two or more liquid inlet branch pipes; the two or more liquid inlet vertical pipes are arranged in sequence along the direction in which the two or more liquid cooling battery modules are arranged, the water inlet end of each liquid inlet branch pipe is communicated with the two adjacent liquid inlet vertical pipes through a tee joint, and the water outlet end of each liquid inlet branch pipe is communicated with the water inlet of each liquid cooling battery module.

[0017] In a possible implementation, the liquid cooling return pipe comprises two or more liquid return vertical pipes and two or more liquid return branch pipes; the two or more liquid return vertical pipes are arranged in sequence along the direction in which the two or more liquid cooling battery modules are arranged, the water outlet end of each liquid return branch pipe is communicated with the two adjacent liquid return vertical pipes through a tee joint, and the water inlet end of each liquid return branch pipe is communicated with the water outlet of each liquid cooling battery module.

[0018] In a possible implementation, the bottom of the cabinet body is provided with a base.

[0019] Beneficial effects: the first cabinet door is provided with an air inlet, and the rear wall of the cabinet body is provided with an air outlet. The air inlet and the air outlet are suitable for heat dissipation of the DCDC photovoltaic converter and the PCS energy storage converter equipment in the first chamber. The water outlet end of the liquid cooling water inlet pipe is communicated with the water inlet of two or more liquid cooling battery modules, and is suitable for sending cooling liquid into the liquid cooling battery module. The cooling liquid flows into the liquid cooling battery module for sufficient heat dissipation and then flows out from the water outlet to the liquid cooling water return pipe. The water outlet end of the liquid cooling water return pipe is communicated with the water inlet end of the liquid cooling water inlet pipe through the variable frequency liquid cooling unit. The variable frequency liquid cooling unit is suitable for heat dissipation of high-temperature cooling liquid. After heat dissipation, the cooling liquid flows into the liquid cooling water inlet pipe, so as to form a cooling liquid circulation, continuously dissipate heat for the liquid cooling battery module, ensure that the liquid cooling battery module works at a suitable temperature, and avoid dangerous conditions of the battery caused by overheating.

[0020] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and serve to explain the principles of the present application.

[0022] Figure 1 A partial structure diagram of a light storage integrated machine according to an embodiment of the present application is shown;

[0023] Figure 2 A main structure diagram of a light storage integrated machine according to an embodiment of the present application is shown;

[0024] Figure 3 A side view of a light storage integrated machine according to an embodiment of the present application is shown;

[0025] Figure 4 A partial enlarged view of a light storage integrated machine according to an embodiment of the present application is shown;

[0026] Figure 5 A partial enlarged view of a light storage integrated machine according to an embodiment of the present application is shown;

[0027] Figure 6 A main structure diagram of a first placement shell according to an embodiment of the present application is shown;

[0028] Figure 7 A main structure diagram of a first placement shell according to an embodiment of the present application is shown;

[0029] Figure 8 A main structure diagram of a second placement shell according to an embodiment of the present application is shown;

[0030] Figure 9 A main structure diagram of a second placement shell according to an embodiment of the present application is shown;

[0031] Figure 10 A partial enlarged view of the optical storage integrated machine of the embodiment of the application is shown;

[0032] Figure 11 A partial enlarged view of the optical storage integrated machine of the embodiment of the application is shown;

[0033] Figure 12 A partial enlarged view of the optical storage integrated machine of the embodiment of the application is shown;

[0034] Figure 13 A rear view of the optical storage integrated machine of the embodiment of the application is shown;

[0035] Figure 14 A rear view of the optical storage integrated machine of the embodiment of the application is shown.

[0036] The cabinet 100, the liquid-cooled battery module 200, the PCS energy storage converter 400, the DCDC photovoltaic converter 300, the variable frequency liquid-cooled unit 500, the high-voltage box 600, the first cabinet door 110, the air inlet 112, the air outlet 113, the liquid-cooled water inlet pipe 800, the liquid-cooled water return pipe 900, the first partition plate 130, the second partition plate 140, the mounting bracket 180, the liquid inlet branch pipe 810, the liquid return branch pipe 910, the exhaust fan 1100, the mounting shell 1000, the louver 111, the supporting plate 170. DETAILED DESCRIPTION

[0037] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent functionally identical or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0038] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 or simplifying the description, and do not indicate or imply 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 a limitation on the present application.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0040] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0041] In addition, numerous specific details are provided in the detailed description below to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0042] Figure 1 The main structure diagram of the optical storage integrated machine of the embodiment of the present application is shown in FIG. Figure 1 As shown, the photovoltaic storage integrated machine includes: a cabinet 100, two or more liquid-cooled battery modules 200, two or more PCS energy storage converters 400, two or more DCDC photovoltaic converters 300 and a variable frequency liquid cooling unit 500; the cabinet 100 is provided with a cavity with an open end, and a first partition 130 and a second partition 140 are provided in the cabinet 100, and the first partition 130 and the second partition 140 are suitable for dividing the cavity of the cabinet 100 into a first chamber, a second chamber and a third chamber; two or more DCDC photovoltaic converters 300 and two or more PCS energy storage converters 400 are sequentially stacked in the first chamber; two or more liquid-cooled battery modules 200 are sequentially stacked in the second chamber; the variable frequency liquid cooling unit 500 is arranged in the third chamber; the open end of the cabinet 100 is hinged with a first partition 130 and a second partition 140. A cabinet door 110, the first cabinet door 110 matches the first chamber and is suitable for covering the first chamber, the first cabinet door 110 is provided with an air inlet 112, and the rear wall of the cabinet body 100 is provided with an air outlet 113, the air inlet 112 and the air outlet 113 are arranged opposite to each other and are connected through the first chamber; a liquid cooling inlet pipe 800 and a liquid cooling return pipe 900 are provided in the second chamber; the outlet end of the liquid cooling inlet pipe 800 is connected to the water inlet of more than two liquid-cooled battery modules 200, and the water inlet end of the liquid cooling return pipe 900 is connected to the water outlet of more than two liquid-cooled battery modules 200, and the coolant is suitable for flowing from the water inlet into the liquid-cooled battery module 200 for heat dissipation and flowing out from the water outlet to form a cooling liquid circulation; the outlet end of the liquid cooling return pipe 900 is connected to the water inlet end of the liquid cooling inlet pipe 800 through the variable frequency liquid cooling unit 500.

[0043] It should be noted here that the cabinet body 100 serves as a protective device for the overall equipment, and plays a wrapping protection role; it avoids the exposure of internal electronic devices and electrical elements to the air, thereby attaching a large amount of dust and other impurities, and also plays a role in preventing rain and snow. The first partition plate 130 and the second partition plate 140 divide the internal cavity of the cabinet body 100 into three chambers, one of which places the DCDC photovoltaic converter 300, the PCS energy storage converter 400 and other equipment; one of which places the variable frequency liquid cooling unit 500, and the other places the liquid-cooled battery module 200. The liquid-cooled battery module 200 is separated from the DCDC photovoltaic converter 300, the PCS energy storage converter 400, the variable frequency liquid cooling unit 500 and other equipment to avoid signal interference between the equipment, and also effectively utilizes the space in the cabinet body 100 to make the overall structure compact. The first cabinet door 110 is provided with an air inlet 112, and the rear wall of the cabinet body 100 is provided with an air outlet 113, the air inlet 112 and the air outlet 113 are oppositely arranged and communicated through the first chamber; the air inlet 112 and the air outlet 113 are suitable for dissipating heat of the DCDC photovoltaic converter 300 and the PCS energy storage converter 400 in the first chamber, and the gas can flow into the air outlet 113 from the air inlet 112, and the heat generated by the equipment is taken away under the action of air flow. The water outlet end of the liquid cooling water inlet pipe 800 is communicated with the water inlet of two or more liquid-cooled battery modules 200, which is suitable for sending cooling liquid into the liquid-cooled battery module 200, and the cooling liquid flows into the liquid-cooled battery module 200 to be fully cooled, and then flows out from the water outlet to the liquid cooling water return pipe 900. The water outlet end 520 of the liquid cooling water return pipe 900 is communicated with the water inlet end 510 of the liquid cooling water inlet pipe 800 through the variable frequency liquid cooling unit 500, and the variable frequency liquid cooling unit 500 is suitable for cooling the high-temperature cooling liquid, and the cooled cooling liquid flows into the liquid cooling water inlet pipe 800, thereby forming a cooling liquid circulation to continuously cool the liquid-cooled battery module 200, ensuring that the liquid-cooled battery module 200 works at a suitable temperature, and avoiding dangerous conditions caused by overheating of the battery. The first chamber and the second chamber of the present application are each provided with a respective heat dissipation structure, and since the types of internal equipment are different, the heat dissipation structures are also different, but they can all ensure the heat dissipation effect in the two chambers. The overall structure of the present application is compact, the space utilization rate is high, the internal electronic equipment is protected, and the heat dissipation effect of each module is ensured.

[0044] In a possible implementation manner, as Figure 2As shown, the plane where the first partition plate 130 is located is perpendicular to the plane where the second partition plate 140 is located; the third chamber is located above the second chamber. It should be noted that the first partition plate 130 is vertically arranged inside the cavity of the cabinet body 100, which divides the cavity of the cabinet body 100 into the first chamber and the second chamber adjacent to each other, and the second partition plate 140 is arranged perpendicular to the first partition plate 130, and the third chamber divided under the action of the second partition plate 140 is located above the second chamber, and the first chamber, the second chamber and the third chamber all have a cuboid structure.

[0045] In a possible implementation, the main body of the cabinet body 100 has a cuboid structure, and the inside is a cavity structure, and one end is provided with a rectangular opening. Further, the cabinet body 100 is composed of a plurality of cabinet plates and a plurality of support columns 190, and the plurality of support columns 190 form a cuboid frame structure, and the cabinet plates cover the frame structure to form the cabinet body 100.

[0046] In a possible implementation, the opening end of the cabinet body 100 is hinged with a second cabinet door 120, and the second cabinet door 120 is matched with the second chamber and the third chamber and is suitable for covering the second chamber and the third chamber. It should be noted that the second cabinet door 120 is suitable for sealing and covering the second chamber and the third chamber.

[0047] In a possible implementation, two or more mounting brackets 180 are arranged in the second chamber; as Figure 4 As shown, the number of mounting brackets 180 is the same as the number of liquid-cooled battery modules 200, and the liquid-cooled battery modules 200 are placed on the mounting brackets 180. Here, it should be noted that since two or more liquid-cooled battery modules 200 are arranged in layers, in order to avoid mutual extrusion caused by direct contact between the two or more liquid-cooled battery modules 200, a plurality of mounting brackets 180 are arranged in the second chamber. As Figure 11 As shown, the mounting bracket 180 is two opposite plates, which are arranged on the side wall of the first partition plate 130 and the inner side wall of the cabinet body 100, respectively, and the bottom sides of the liquid-cooled battery modules 200 are placed on the two opposite plates to realize the lifting and support of the liquid-cooled battery modules 200.

[0048] Further, there are five liquid-cooled battery modules 200, and the five liquid-cooled battery modules 200 are arranged in layers from top to bottom, and there are also five mounting brackets 180. The model of the liquid-cooled battery module 200 can be 1P48S.

[0049] In a possible implementation, the liquid-cooled water inlet pipe 800 includes two or more liquid inlet vertical pipes and two or more liquid inlet branch pipes 810; as Figure 4As shown, two or more liquid inlet vertical pipes are arranged in sequence along the direction of arrangement of two or more liquid-cooled battery modules 200. The water inlet end of each liquid inlet branch pipe 810 is connected to the two adjacent liquid inlet vertical pipes through a tee 820, and the water outlet end of each liquid inlet branch pipe 810 is connected to the water inlet of each liquid-cooled battery module 200. Figure 4 and Figure 5 As shown, the liquid cooling water inlet pipe 800 is equipped with six vertical inlet pipes and five branch inlet pipes 810. The five branch inlet pipes 810 are connected to the six series-connected vertical inlet pipes via tees 820. The water inlet end of the topmost vertical inlet pipe is connected to the water outlet end of the variable frequency liquid cooling unit 500. The variable frequency liquid cooling unit 500 cools the high-temperature coolant before feeding it into the liquid cooling water inlet pipe 800.

[0050] In one possible implementation, the liquid cooling return pipe 900 includes: two or more liquid return vertical pipes and two or more liquid return branch pipes 910; the two or more liquid return vertical pipes are sequentially connected and arranged along the direction of arrangement of the two or more liquid cooling battery modules 200, the water outlet end of each liquid return branch pipe 910 is connected to the two adjacent liquid return vertical pipes via a tee, and the water inlet end of each liquid return branch pipe 910 is respectively connected to the water outlet of each liquid cooling battery module 200. Figure 4 Figure 5 As shown, the liquid cooling return pipe 900 is equipped with six vertical return pipes and five branch return pipes 910. The five branch return pipes 910 are connected to the six series-connected vertical return pipes via tees. The outlet of the topmost vertical return pipe is connected to the inlet of the variable frequency liquid cooling unit 500 to deliver high-temperature coolant to the variable frequency liquid cooling unit 500.

[0051] It should be noted that the liquid supply temperature of the variable frequency liquid cooling unit 500 is 20° C. The pipe material of the liquid cooling return pipe 900 and the liquid cooling inlet pipe 800 are both PA11.

[0052] In one possible implementation, Figure 13 As shown, a heat dissipation opening 530 is provided on the rear wall of the cabinet 100 , which is suitable for ventilating and dissipating heat for the variable frequency liquid cooling unit 500 .

[0053] In one possible implementation, Figure 13 As shown, an exhaust fan 1100 is provided in the first chamber. The exhaust side of the exhaust fan 1100 faces the air inlet 112, and the exhaust side of the exhaust fan 1100 faces the air outlet 113. The exhaust fan 1100 is adapted to draw air from the air inlet 112 into the first chamber and out of the air outlet 113. It should be noted that the first exhaust fan 1100 is provided on the back side of two or more DCDC photovoltaic converters 300. The first exhaust fan 1100 increases the air flow velocity in the first chamber, thereby forming an air-cooling heat dissipation mode and efficiently dissipating heat from the internal equipment.

[0054] Furthermore, the exhaust fan 1100 is provided with a mounting shell 1000; Figure 12 and Figure 13 As shown, the exhaust fan 1100 is installed on the inner side of the installation shell 1000, and the side wall of the installation shell 1000 is fixedly connected to the rear wall of the cabinet 100 by means of bolts.

[0055] In one possible implementation, Figure 14 As shown, the rear wall of the cabinet 100 is provided with an air outlet 113, which is composed of a plurality of circular holes arranged in an array. The air outlet 113 is opposite the exhaust fan 1100. When the exhaust fan 1100 is in operation, air is drawn into the first chamber through the air inlet 112 of the first cabinet door 110. The air then blows towards the two or more DC-DC photovoltaic inverters 300 and the two or more PCS energy storage inverters 400, and then flows out of the air outlet 113 after passing through the exhaust fan 1100.

[0056] In a possible implementation, the first cabinet door 110 is provided with an air inlet 112, such as Figure 3 As shown, the air inlet 112 is also composed of a plurality of circular holes arranged in an array.

[0057] In one possible implementation, a louver 111 is provided at the air inlet 112 of the first cabinet door 110. It should be noted that to prevent dust, impurities, or rainwater from falling into the interior of the cabinet body 100 through the air inlet 112, the louver 111 is provided on the inner side of the first cabinet door 110, and the louver 111 covers the air inlet 112. The louver 111 provides isolation, ensuring that air can enter the cabinet body 100 while isolating impurities, dust, and the like from the outside, thereby providing protection and filtering. Furthermore, the louver 111 utilizes an IP55 protection grade louver 111.

[0058] Furthermore, the first cabinet door 110 is provided with two air inlets 112 , and two shutters 111 are correspondingly provided on the inner side of the first cabinet door 110 .

[0059] In a possible implementation, the DCDC photovoltaic converter 300 is provided with a first placement shell 310; the DCDC photovoltaic converter 300 is arranged in the first cavity of the cabinet 100 through the first placement shell 310, such as Figure 6 and Figure 7As shown, the opposite sides of the first placement shell 310 are respectively provided with a ventilation opening 360 and a ventilation opening 350, one side of the ventilation opening 360 is towards the first cabinet door 110, and the other side of the ventilation opening 350 is towards the exhaust fan 1100, so that the gas can flow into the first placement shell 310 from the ventilation opening 360 to contact the DCDC photovoltaic converter 300 and be exhausted from the other side of the ventilation opening 350. The side of the first placement shell 310 towards the first cabinet door 110 is provided with a mounting lug 330, and the mounting lug 330 is provided with a bolt hole. The mounting lug 330 is fixedly connected with the inner wall of the cabinet body 100 by bolt connection, so as to fix the first placement shell 310 in the first chamber. The side of the first placement shell 310 towards the first cabinet door 110 is also symmetrically provided with two handles 320, so as to improve the moving convenience of the first placement shell 310.

[0060] The first placement shell 310 is provided with two or more fans 340, the two or more fans 340 are arranged in sequence along the length direction of the first placement shell 310 and are close to the ventilation opening 360, the blowing end of the two or more fans 340 is towards the DCDC photovoltaic converter 300, and the heat dissipation effect of the DCDC photovoltaic converter 300 is further improved under the action of the two or more fans 340. The side of the first placement shell 310 towards the exhaust fan 1100 is provided with a wire accommodation hole 370, so as to facilitate the electrical connection between the DCDC photovoltaic converter 300 and other equipment through the wire accommodation hole 370.

[0061] Further, the DCDC photovoltaic converter 300 is provided with five, and the five DCDC photovoltaic converters 300 are stacked and arranged in the first chamber.

[0062] In a possible implementation, the PCS energy storage converter 400 is provided with a second placement shell 410, and the PCS energy storage converter 400 is arranged in the first cavity of the cabinet body 100 through the second placement shell 410, as shown in Figure 8As shown, the second placing shell 410 is arranged below the first placing shell 310, the main body of the second placing shell 410 is in the shape of a cuboid shell, and similarly, opposite sides of the second placing shell 410 are respectively provided with a ventilation opening 440 and a ventilation opening 470, one side of the ventilation opening 440 faces the first cabinet door 110, and the other side of the ventilation opening 470 faces the exhaust fan 1100, so that the gas can flow into the second placing shell 410 to contact the PCS energy storage converter 400 from the ventilation opening 440 and be exhausted from the other side of the ventilation opening 470. The side of the second placing shell 410 facing the first cabinet door 110 is also provided with a mounting ear 420, two or more bolt holes are formed in the mounting ear 420, and the mounting ear 420 is fixedly connected to the inner wall of the cabinet body 100 by bolt connection, so as to fix the second placing shell 410 in the first chamber. The side of the second placing shell 410 facing the first cabinet door 110 is also symmetrically provided with two handles 430 to improve the convenience of moving the second placing shell 410.

[0063] The second placing shell 410 is provided with two or more fans 450, the two or more fans 450 are arranged close to the ventilation opening 440 and sequentially arranged along the length direction of the second placing shell 410, the blowing end of the two or more fans 450 faces the PCS energy storage converter 400, and the heat dissipation effect of the PCS energy storage converter 400 is further ensured under the action of the two or more fans 450. The side of the second placing shell 410 facing the exhaust fan 1100 is provided with a wire accommodation hole 460, so as to facilitate the electrical connection of the PCS energy storage converter 400 with other equipment through the wire accommodation hole 460.

[0064] Further, the PCS energy storage converter 400 is provided with two, and the two PCS energy storage converters 400 are stacked in the first chamber.

[0065] In a possible implementation, the first chamber is also provided with two or more supporting plates 170; as Figure 4 With Figure 10 As shown, the bottom of the two or more first placing shells 310 and the bottom of the two or more second placing shells 410 are provided with a supporting plate 170 for further reinforcement and support, and the two sides of the supporting plate 170 are fixedly connected to the inner side wall of the cabinet body 100 and the side wall of the first partition plate 130 by bolt connection.

[0066] In a possible implementation, the bottom of the cabinet body 100 is provided with a base 150, and it should be noted that in order to improve the stability of the cabinet body 100, a cuboid base 150 is arranged at the bottom of the cabinet body 100 to raise the height and avoid water entering due to direct connection of the bottom of the cabinet body 100 with the ground.

[0067] In a possible implementation, the emergency power supply UPS 171 is arranged in the first chamber and above the uppermost DCDC photovoltaic converter 300. The control system 700 is arranged in the first chamber and above the emergency power supply UPS 171. The circuit breaker module 160 is arranged in the first chamber and below the PCS energy storage converter 400.

[0068] In a possible implementation, further comprising: a high-voltage box 600. The high-voltage box 600 is arranged in the second chamber and at the bottom of the liquid-cooled battery module 200. The high-voltage box 600 is provided with a battery management system BMS, one end of the battery management system BMS is electrically connected with the PCS energy storage converter 400, and the other end of the battery management system BMS is electrically connected with the liquid-cooled battery module 200.

[0069] The above has described the embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical application or improvement of the technology in the market of the embodiments, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. An integrated optical storage device, characterized in that: include: Cabinet, two or more liquid-cooled battery modules, two or more PCS energy storage converters, two or more DCDC photovoltaic converters and variable frequency liquid cooling units; The cabinet is provided with a cavity with one end open, and a first partition and a second partition are provided in the cabinet, and the first partition and the second partition are suitable for dividing the cavity of the cabinet into a first chamber, a second chamber and a third chamber; More than two DCDC photovoltaic converters and more than two PCS energy storage converters are sequentially stacked in the first chamber; more than two liquid-cooled battery modules are sequentially stacked in the second chamber; and the variable frequency liquid cooling unit is arranged in the third chamber. A first cabinet door is hingedly connected to the open end of the cabinet body, and the first cabinet door matches the first chamber and is suitable for covering the first chamber. The first cabinet door is provided with an air inlet, and an air outlet is provided on the rear wall of the cabinet body. The air inlet and the air outlet are arranged opposite to each other and are connected through the first chamber. A liquid cooling water inlet pipe and a liquid cooling water return pipe are provided in the second chamber; the water outlet end of the liquid cooling water inlet pipe is connected to the water inlets of two or more liquid-cooled battery modules, and the water inlet end of the liquid cooling water return pipe is connected to the water outlets of two or more liquid-cooled battery modules, so as to allow the coolant to flow from the water inlet into the liquid-cooled battery module for heat dissipation and flow out from the water outlet to form a coolant circulation; The water outlet end of the liquid cooling return pipe is connected to the water inlet end of the liquid cooling inlet pipe through the variable frequency liquid cooling unit.

2. The integrated optical storage device according to claim 1, characterized in that: The plane where the first partition plate is located is perpendicular to the plane where the second partition plate is located; and the third chamber is located above the second chamber.

3. The integrated optical storage device according to claim 1, characterized in that: An exhaust fan is provided in the first chamber, the exhaust side of the exhaust fan faces the air inlet, and the outlet side of the exhaust fan faces the air outlet, and is suitable for introducing air from the air inlet into the first chamber and out of the air outlet.

4. The integrated optical storage device according to claim 1, characterized in that: The air inlet of the first cabinet door is provided with a shutter.

5. The integrated optical storage device according to claim 2, characterized in that: A second cabinet door is hingedly connected to the open end of the cabinet body. The second cabinet door matches the second cavity and the third cavity and is suitable for covering the second cavity and the third cavity.

6. The integrated optical storage device according to claim 1, characterized in that: More than two mounting brackets are provided in the second chamber; the number of the mounting brackets matches the number of the liquid-cooled battery modules, and the liquid-cooled battery modules are placed on the mounting brackets.

7. The integrated optical and storage device according to claim 1, characterized in that: The liquid-cooled water inlet pipe includes: more than two liquid inlet vertical pipes and more than two liquid inlet branch pipes; the more than two liquid inlet vertical pipes are arranged in sequence along the direction of arrangement of the more than two liquid-cooled battery modules, and the water inlet end of each liquid inlet branch pipe is connected to the two adjacent liquid inlet vertical pipes through a tee, and the water outlet end of each liquid inlet branch pipe is respectively connected to the water inlet of each liquid-cooled battery module.

8. The integrated optical and storage device according to claim 7, characterized in that: The liquid-cooled return water pipe includes: more than two liquid return vertical pipes and more than two liquid return branch pipes; the more than two liquid return vertical pipes are arranged in sequence along the direction of arrangement of the more than two liquid-cooled battery modules, and the water outlet end of each liquid return branch pipe is connected to the two adjacent liquid return vertical pipes through a tee, and the water inlet end of each liquid return branch pipe is respectively connected to the water outlet of each liquid-cooled battery module.

9. The integrated optical and storage device according to claim 1, characterized in that: A base is provided at the bottom of the cabinet.

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