Photovoltaic energy storage battery cabinet with built-in heat management air duct

Abstract

The utility model belongs to the technical field of battery cabinet, and disclose a kind of photovoltaic energy storage battery cabinet of built-in heat management air duct, including cabinet, the front of cabinet is equipped with battery cavity, the inside of battery cavity is provided with two air duct assemblies of left-right symmetry, the inside of battery cavity is placed with several energy storage batteries, the back of cabinet is provided with air cooling mechanism, the front of cabinet is provided with cabinet door, and the cabinet door is sealed and fits with air duct assembly;The air duct assembly includes the ventilation component fixedly installed in the middle part of cabinet, and the side of ventilation component close to corresponding energy storage battery is fixedly installed with several separation components.The utility model can be in the cooperation of ventilation component to the good supporting effect to energy storage battery, while every energy storage battery can be in independent sealed space, avoid different load energy storage battery interference, improve temperature control quality, and reduce temperature control energy consumption by separation component and sealing plate.

Description

Technical Field

[0001] This utility model belongs to the field of battery cabinet technology, specifically a photovoltaic energy storage battery cabinet with built-in thermal management air duct. Background Technology

[0002] A photovoltaic power station is a power generation system that utilizes solar energy and is composed of special materials such as crystalline silicon panels and electronic components such as inverters. It is connected to the power grid and transmits electricity to the grid. The electrical energy generated by photovoltaic power generation is stored in battery storage cabinets. Only when the electrical energy is stored can it be provided to different places and utilized.

[0003] A significant amount of heat is generated during energy storage and its use, requiring cooling. In extremely cold regions, it is even necessary to actively increase the heat within the battery cabinet to ensure the safe operation of the system. Therefore, a thermal management duct is needed. However, existing thermal management ducts have fixed structures, while the energy storage battery cabinet contains several independent energy storage batteries. Each independent battery operates differently, meaning the heat generated by each battery is different. Existing thermal management ducts cannot precisely control the temperature for each individual battery, significantly reducing temperature control effectiveness and efficiency, while increasing energy consumption and time. Therefore, it is necessary to develop a photovoltaic energy storage battery cabinet with a built-in thermal management duct to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a photovoltaic energy storage battery cabinet with a built-in thermal management air duct, which has the advantage of good thermal management performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic energy storage battery cabinet with built-in thermal management air duct, comprising a cabinet body, a battery cavity opened on the front of the cabinet body, two symmetrical air duct components arranged inside the battery cavity, a number of energy storage batteries placed inside the battery cavity through the air duct components, a wind-cooling mechanism arranged on the back of the cabinet body, and a cabinet door arranged on the front of the cabinet body, the cabinet door being sealed and fitted with the air duct components;

[0006] The air duct assembly includes a ventilation component fixedly installed in the middle of the cabinet. Several partition components are fixedly installed on the side of the ventilation component near the corresponding energy storage battery. The ventilation component and the partition components are sealed and fitted against the inner wall of the battery cavity. The energy storage battery is placed between two adjacent partition components. Gaps are left between the outer surface of the energy storage battery and the battery cavity and the ventilation component to form an independent space. A sealing plate located between two adjacent partition components is fixedly connected between the energy storage battery and the ventilation component. Several air inlet components and air outlet components are arranged on the side of the ventilation component near the energy storage battery, located on the front and rear sides of the sealing plate. The ventilation component is connected to the independent space through the air inlet components, and the independent space is connected to the ventilation component through the air outlet components.

[0007] Preferably, the ventilation assembly includes a support partition that is fixedly installed inside the battery cavity and sealed to the back of the cabinet door. The support partition has an air inlet channel and an air outlet channel inside. The rear ends of the air inlet channel and the air outlet channel extend into the air-cooling mechanism. The front ends of the air inlet channel and the air outlet channel are parallel to the air inlet assembly and the air outlet assembly, respectively.

[0008] Preferably, each of the aforementioned air intake components, air exhaust components, and independent spaces corresponds to one another and is interconnected with each other. The air-cooling mechanism is sequentially connected to the air outlet channel through the air intake channel, air intake components, independent spaces, and air exhaust components.

[0009] Preferably, the partition assembly includes a partition support plate fixedly installed on the outer surface of the support partition and the inner wall of the battery cavity. The top of the partition support plate is provided with a placement groove, and the energy storage battery is inserted into the placement groove.

[0010] Preferably, the left and right sides of the sealing plate are sealed and fitted between the supporting partition and the energy storage battery, and the upper and lower ends of the sealing plate are sealed and fitted between two adjacent partition supporting plates.

[0011] Preferably, the air intake assembly includes an air intake slot that is opened inside the support partition and in front of the sealing plate and parallel to the air intake channel, and an air intake screen plate is installed in the air intake slot on the side near the energy storage battery.

[0012] The exhaust assembly includes an exhaust duct that is located inside the support partition and behind the sealing plate and parallel to the air outlet channel. An exhaust screen is installed in the exhaust duct on the side closest to the energy storage battery.

[0013] Preferably, the support partition has an air inlet valve chamber, an air inlet through hole, and a sealing chamber that are connected and interconnected between the air inlet channel and the air inlet slot. The inner diameter of the air inlet valve chamber is larger than the inner diameter of the air inlet through hole and the sealing chamber. A limit slide plate is slidably connected inside the air inlet valve chamber, and an air inlet piston is sealed inside the sealing chamber.

[0014] A telescopic cover is provided on the side of the air inlet slot away from the air inlet channel. One side of the telescopic cover is fixedly connected to the inner wall of the air inlet slot, and a linkage rod is fixedly connected to the other side of the telescopic cover. The other end of the linkage rod is fixedly sleeved inside the air inlet piston and the limiting slide plate.

[0015] Preferably, the supporting partition has an exhaust valve chamber, an exhaust through hole, and a guide hole that are connected and interconnected between the air outlet channel and the exhaust trough. The exhaust valve chamber is tapered at one end near the exhaust trough. An exhaust piston is sealed and fitted inside the exhaust valve chamber at one end near the exhaust trough. An air passage is formed inside the exhaust piston. The two ends of the air passage are respectively connected to the two ends of the exhaust valve chamber. A positioning spring is provided inside the exhaust valve chamber to abut against the end of the exhaust piston away from the exhaust trough. The other end of the positioning spring is abut against the inner wall of the exhaust valve chamber.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Due to the arrangement of the partition component and the sealing plate, this utility model can provide good support for the energy storage battery in conjunction with the ventilation component, and at the same time, it can keep each energy storage battery in an independent sealed space, avoid mutual interference between energy storage batteries with different loads, improve the temperature control quality, and reduce the temperature control energy consumption.

[0018] 2. Due to the design of the air inlet piston, when the temperature in any independent space is suitable, the air inlet valve chamber and the air inlet slot are made independent of each other with the cooperation of the sealing cavity. This ensures that the temperature-controlled airflow entering the air inlet channel will not enter the independent space, thus avoiding the waste of temperature-controlled airflow and ensuring the stability of the operating environment of the energy storage battery in the independent space. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a front view of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the ventilation component of this utility model;

[0023] Figure 5 This is a partial schematic diagram of a side cross-section of the ventilation component of this utility model;

[0024] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle;

[0025] Figure 7 for Figure 5 A magnified view of a portion of point B in the middle.

[0026] In the diagram: 1. Cabinet; 2. Battery cavity; 3. Air duct assembly; 31. Ventilation assembly; 311. Support partition; 312. Air inlet channel; 313. Air outlet channel; 32. Divider assembly; 321. Divider support plate; 322. Placement slot; 33. Sealing plate; 34. Air inlet assembly; 341. Air inlet slot; 342. Air inlet screen; 343. Telescopic cover; 344. Air inlet valve cavity; 345. Air inlet piston; 346. Linkage rod; 347. Limiting slide plate; 348. Air inlet through hole; 35. Exhaust assembly; 351. Exhaust slot; 352. Exhaust screen; 353. Exhaust valve cavity; 354. Exhaust through hole; 355. Guide hole; 356. Exhaust piston; 357. Air passage; 358. Positioning spring; 4. Energy storage battery; 5. Air cooling mechanism; 6. Cabinet door. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 7 As shown, this utility model provides a photovoltaic energy storage battery cabinet with built-in thermal management air duct, including a cabinet body 1, a battery cavity 2 opened on the front of the cabinet body 1, two air duct components 3 arranged symmetrically on the left and right inside the battery cavity 2, a number of energy storage batteries 4 placed inside the battery cavity 2 through the air duct components 3, a wind cooling mechanism 5 arranged on the back of the cabinet body 1, and a cabinet door 6 arranged on the front of the cabinet body 1, the cabinet door 6 being sealed and fitted with the air duct components 3.

[0029] The air duct assembly 3 includes a ventilation assembly 31 fixedly installed in the middle of the cabinet 1. Several partition components 32 are fixedly installed on the side of the ventilation assembly 31 near the corresponding energy storage battery 4. The ventilation assembly 31 and the partition components 32 are sealed and fitted against the inner wall of the battery cavity 2. The energy storage battery 4 is placed between two adjacent partition components 32. Gaps are left between the outer surface of the energy storage battery 4 and the battery cavity 2 and the ventilation assembly 31 to form independent spaces. A sealing plate 33 located between two adjacent partition components 32 is fixedly connected between the energy storage battery 4 and the ventilation assembly 31. Several inlets are provided on the side of the ventilation assembly 31 near the energy storage battery 4 on both sides of the sealing plate 33. The ventilation component 31 is connected to the independent space via the air intake component 34, and the independent space is connected to the ventilation component 31 via the exhaust component 35. Due to the arrangement of the partition component 32 and the sealing plate 33, the energy storage battery 4 can be well supported in conjunction with the ventilation component 31, and each energy storage battery 4 can be in an independent sealed space to avoid mutual interference between energy storage batteries 4 with different loads. Moreover, with the cooperation of the air intake component 34 and the exhaust component 35, the air cooling mechanism 5 can control the temperature of the energy storage battery 4 in the corresponding independent space, improve the temperature control quality, and reduce the temperature control energy consumption.

[0030] The ventilation component 31 includes a support partition 311 that is fixedly installed inside the battery cavity 2 and sealed against the back of the cabinet door 6. The support partition 311 has an air inlet channel 312 and an air outlet channel 313 inside. The rear ends of the air inlet channel 312 and the air outlet channel 313 extend into the air-cooling mechanism 5. The front ends of the air inlet channel 312 and the air outlet channel 313 are parallel to the air inlet component 34 and the air exhaust component 35, respectively.

[0031] Among them, several air intake components 34, air exhaust components 35 and independent spaces are all one-to-one and interconnected. The air-cooling mechanism 5 is connected to the air outlet channel 313 in sequence through the air intake channel 312, air intake components 34, independent spaces and air exhaust components 35.

[0032] The partition assembly 32 includes a partition support plate 321 fixedly installed on the outer surface of the support partition plate 311 and the inner wall of the battery cavity 2. The top of the partition support plate 321 is provided with a placement groove 322, and the energy storage battery 4 is inserted into the placement groove 322.

[0033] The left and right sides of the sealing plate 33 are sealed and attached between the supporting partition 311 and the energy storage battery 4, and the upper and lower ends of the sealing plate 33 are sealed and attached between two adjacent partition supporting plates 321.

[0034] The air intake assembly 34 includes an air intake slot 341 that is opened inside the support partition 311 and in front of the sealing plate 33 and parallel to the air intake channel 312. An air intake screen 342 is installed on the side of the air intake slot 341 near the energy storage battery 4. Due to the setting of the air intake screen 342, the air in the air intake slot 341 can be quickly dispersed to the upper and lower ends and the middle of the corresponding independent space, ensuring that the circulating air in the independent space can fill the entire independent space, thereby improving the temperature control effect and temperature control efficiency.

[0035] The exhaust assembly 35 includes an exhaust duct 351 located inside the support partition 311 and behind the sealing plate 33 and parallel to the air outlet channel 313. An exhaust screen plate 352 is installed in the exhaust duct 351 on the side near the energy storage battery 4.

[0036] The supporting partition 311 has an air inlet valve chamber 344, an air inlet through hole 348, and a sealing cavity that are connected between the air inlet channel 312 and the air inlet slot 341. The inner diameter of the air inlet valve chamber 344 is larger than the inner diameter of the air inlet through hole 348 and the sealing cavity. The air inlet valve chamber 344 is slidably connected to a limit slide plate 347. The sealing cavity is sealed with an air inlet piston 345. Due to the setting of the air inlet piston 345, when the temperature in any independent space is suitable, the air inlet valve chamber 344 and the air inlet slot 341 are independent of each other with the cooperation of the sealing cavity. This ensures that the temperature-controlled airflow entering the air inlet channel 312 will not enter the independent space, avoiding the waste of temperature-controlled airflow, and ensuring the stability of the operating environment of the energy storage battery 4 in the independent space.

[0037] A telescopic cover 343 is provided on the side of the air inlet slot 341 away from the air inlet channel 312. One side of the telescopic cover 343 is fixedly connected to the inner wall of the air inlet slot 341, and the other side of the telescopic cover 343 is fixedly connected to a linkage rod 346. The other end of the linkage rod 346 is fixedly sleeved in the air inlet piston 345 and the limiting slide plate 347. Due to the setting of the telescopic cover 343, with the cooperation of the air inlet slot 341, the air inside the telescopic cover 343 can be kept at the same temperature as the air inlet slot 341 and the air temperature of the independent space around the corresponding energy storage battery 4. Thus, the telescopic cover 343 can sense the air temperature inside the corresponding energy storage battery 4 and expand and contract. This causes the air inlet piston 345 to be driven by the linkage rod 346, causing it to disengage from the sealed cavity. This allows the high and low temperature airflows in the air inlet channel 312 to enter the corresponding independent space through the air inlet assembly 34, thereby achieving the effect of controlling the temperature rise or fall in the independent space.

[0038] The supporting partition 311 has an exhaust valve chamber 353, an exhaust through hole 354, and a guide hole 355 that are connected between the air outlet channel 313 and the exhaust slot 351. The exhaust valve chamber 353 is tapered at one end near the exhaust slot 351. An exhaust piston 356 is sealed and fitted inside the exhaust valve chamber 353 at the end near the exhaust slot 351. An air passage 357 is formed inside the exhaust piston 356. The two ends of the air passage 357 are respectively connected to the exhaust valve chamber 351. The two ends of 3 are connected. The exhaust valve cavity 353 is provided with a positioning spring 358 that abuts against the end of the exhaust piston 356 away from the exhaust groove 351. The other end of the positioning spring 358 abuts against the inner wall of the exhaust valve cavity 353. Due to the setting of the exhaust assembly 35, with the cooperation of the guide hole 355 and the exhaust groove 351, the temperature-controlled airflow entering the corresponding independent space can be discharged through the exhaust assembly 35, while avoiding backflow that would affect the temperature control quality.

[0039] Working principle and usage process of this utility model:

[0040] First, with the cooperation of ventilation component 31, partition component 32 and sealing plate 33, several independent circulating air channels corresponding to the energy storage batteries 4 are formed in the battery cavity 2, so that the temperature-controlled airflow can circulate in the independent space corresponding to each energy storage battery 4.

[0041] The air cooling mechanism 5 allows airflow to enter the corresponding independent space through the air intake channel 312 and air intake component 34 via the supporting partition 311 and air intake channel 312. After circulating around the corresponding energy storage battery 4 and being temperature controlled, the airflow is discharged through the air outlet channel 313 after passing through the corresponding exhaust component 35.

[0042] When the temperature in the independent space corresponding to any energy storage battery 4 reaches a certain temperature, the temperature inside the telescopic cover 343 in the air inlet slot 341 rises and expands, causing the telescopic cover 343 to extend along the air inlet slot 341 toward the air inlet valve chamber 344. Under the constraint of the limiting slide plate 347 and the air inlet valve chamber 344, the air inlet piston 345 is pushed away from the sealing chamber by the linkage rod 346, so that the air inlet valve chamber 344 and the air inlet slot 341 are connected to each other. Then, the temperature-controlled airflow in the air inlet channel 312 can enter the air inlet slot 341 through the air inlet hole 348, the air inlet valve chamber 344 and the sealing chamber. Under the action of the air inlet screen plate 342, it is quickly dispersed to the independent space of the corresponding energy storage battery 4. Under the constraint of the partition component 32 and the sealing plate 33, it circles the energy storage battery 4 and is discharged by the exhaust component 35.

[0043] After the exhaust airflow passes through the exhaust screen plate 352 and enters the exhaust trough 351, it pushes open the exhaust piston 356 along the guide hole 355 and enters the exhaust valve chamber 353. Then, it enters the exhaust through hole 354 through the air passage 357 and is finally discharged through the air outlet passage 313.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic energy storage battery cabinet with built-in thermal management air ducts, comprising a cabinet body (1), characterized in that: The front of the cabinet (1) has a battery cavity (2), and two symmetrical air duct components (3) are arranged inside the battery cavity (2). Several energy storage batteries (4) are placed inside the battery cavity (2) through the air duct components (3). The back of the cabinet (1) has a cooling mechanism (5). The front of the cabinet (1) has a cabinet door (6), and the cabinet door (6) is sealed and fitted with the air duct components (3). The air duct assembly (3) includes a ventilation assembly (31) fixedly installed in the middle of the cabinet (1). Several partition components (32) are fixedly installed on the side of the ventilation assembly (31) near the corresponding energy storage battery (4). The ventilation assembly (31) and the partition components (32) are sealed and fitted to the inner wall of the battery cavity (2). The energy storage battery (4) is placed between two adjacent partition components (32). A gap is left between the outer surface of the energy storage battery (4) and the battery cavity (2) and the ventilation assembly (31). The energy storage battery (4) and the ventilation assembly (31) are fixedly connected by a sealing plate (33) located between two adjacent partition components (32). The ventilation assembly (31) is provided with several air inlet components (34) and air outlet components (35) located on the front and rear sides of the sealing plate (33) on the side near the energy storage battery (4). The ventilation assembly (31) is connected to the independent space through the air inlet components (34), and the independent space is connected to the ventilation assembly (31) through the air outlet components (35).

2. The photovoltaic energy storage battery cabinet with built-in thermal management air duct according to claim 1, characterized in that: The ventilation assembly (31) includes a support partition (311) that is fixedly installed inside the battery cavity (2) and sealed against the back of the cabinet door (6). The support partition (311) has an air inlet channel (312) and an air outlet channel (313) inside. The rear ends of the air inlet channel (312) and the air outlet channel (313) extend into the air-cooling mechanism (5). The front ends of the air inlet channel (312) and the air outlet channel (313) are parallel to the air inlet assembly (34) and the air outlet assembly (35), respectively.

3. The photovoltaic energy storage battery cabinet with built-in thermal management air duct according to claim 2, characterized in that: Each of the aforementioned air intake components (34), air exhaust components (35), and independent spaces corresponds to one another and is interconnected. The air-cooling mechanism (5) is connected to the air outlet channel (313) in sequence through the air intake channel (312), air intake components (34), independent spaces, and air exhaust components (35).

4. The photovoltaic energy storage battery cabinet with built-in thermal management air duct according to claim 2, characterized in that: The partition assembly (32) includes a partition support plate (321) fixedly installed on the outer surface of the support partition plate (311) and the inner wall of the battery cavity (2). The top of the partition support plate (321) is provided with a placement groove (322), and the energy storage battery (4) is inserted into the placement groove (322).

5. The photovoltaic energy storage battery cabinet with built-in thermal management air duct according to claim 4, characterized in that: The left and right sides of the sealing plate (33) are sealed and attached between the support partition (311) and the energy storage battery (4), and the upper and lower ends of the sealing plate (33) are sealed and attached between two adjacent partition support plates (321).

6. The photovoltaic energy storage battery cabinet with built-in thermal management air duct according to claim 2, characterized in that: The air intake assembly (34) includes an air intake slot (341) that is opened inside the support partition (311) and in front of the sealing plate (33) and parallel to the air intake channel (312). An air intake screen plate (342) is installed in the air intake slot (341) on the side near the energy storage battery (4). The exhaust assembly (35) includes an exhaust trough (351) located inside the support partition (311) and behind the sealing plate (33) and parallel to the air outlet channel (313). An exhaust screen plate (352) is installed in the exhaust trough (351) on the side near the energy storage battery (4).

7. The photovoltaic energy storage battery cabinet with built-in thermal management air duct according to claim 6, characterized in that: The support partition (311) has an air inlet valve chamber (344), an air inlet through hole (348) and a sealing chamber that are connected and interconnected between the air inlet channel (312) and the air inlet slot (341). The inner diameter of the air inlet valve chamber (344) is larger than the inner diameter of the air inlet through hole (348) and the sealing chamber. The air inlet valve chamber (344) is slidably connected to a limit slide plate (347). The sealing chamber is sealed with an air inlet piston (345). A telescopic cover (343) is provided on the side of the air inlet slot (341) away from the air inlet channel (312). One side of the telescopic cover (343) is fixedly connected to the inner wall of the air inlet slot (341), and the other side of the telescopic cover (343) is fixedly connected to a linkage rod (346). The other end of the linkage rod (346) is fixedly sleeved in the air inlet piston (345) and the limiting slide plate (347).

8. The photovoltaic energy storage battery cabinet with built-in thermal management air duct according to claim 6, characterized in that: The support partition (311) has an exhaust valve chamber (353), an exhaust through hole (354), and a guide hole (355) that are connected between the air outlet channel (313) and the exhaust groove (351). The exhaust valve chamber (353) is tapered at one end near the exhaust groove (351). An exhaust piston (356) is sealed and fitted inside the exhaust valve chamber (353) at one end near the exhaust groove (351). An air passage (357) is opened inside the exhaust piston (356). The two ends of the air passage (357) are respectively connected to the two ends of the exhaust valve chamber (353). A positioning spring (358) is provided inside the exhaust valve chamber (353) to abut against and connect to the end of the exhaust piston (356) away from the exhaust groove (351). The other end of the positioning spring (358) is abut against and connected to the inner wall of the exhaust valve chamber (353).

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