CN214176104U - Energy storage device, equipment and system - Google Patents
Energy storage device, equipment and system Download PDFInfo
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- CN214176104U CN214176104U CN202022910557.2U CN202022910557U CN214176104U CN 214176104 U CN214176104 U CN 214176104U CN 202022910557 U CN202022910557 U CN 202022910557U CN 214176104 U CN214176104 U CN 214176104U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 54
- 238000005057 refrigeration Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 9
- 238000004378 air conditioning Methods 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 description 9
- 230000007704 transition Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses energy storage device, equipment and system. The energy storage device of the present application includes: a housing defining a receiving cavity; at least two battery clusters arranged in the accommodating cavity; the refrigerating device is used for controlling the temperature in the accommodating cavity; the air duct device is arranged in the accommodating cavity and comprises an air duct and a gradual change plate, the gradual change plate is arranged on one surface, close to the battery cluster, of the air duct, and the interval width of the gradual change plate is shortened along the extending direction. The refrigerating device is arranged, so that the overall temperature in the container can be controlled; through setting up the wind channel device including wind channel and gradual change board, it is big to realize preceding air-out area, and the air-out area at back is little to guarantee that the amount of wind that obtains is unanimous between the different battery clusters, and then can guarantee the temperature stability between the battery cluster.
Description
Technical Field
The application relates to the technical field of energy storage, in particular to an energy storage device, equipment and a system.
Background
In the related art, the temperature control system of the energy storage system is designed in a centralized manner at the battery module level, and although the temperature of a single battery module can be guaranteed to be within the design range, the temperature stability of the whole battery cluster and the energy storage device cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. For this reason, this application provides an energy memory, can realize the temperature stabilization between the different battery cluster to reduce the difference in temperature between the different battery clusters.
The application also provides an energy storage device with the energy storage device.
The application also provides an energy storage system with the energy storage device.
An energy storage device according to an embodiment of the first aspect of the present application includes: a housing defining a receiving cavity; at least two battery clusters arranged in the accommodating cavity; the refrigerating device is used for controlling the temperature in the accommodating cavity; the air channel device is arranged in the accommodating cavity and comprises an air channel and a gradual change plate, and the air channel comprises an upper surface and a lower surface opposite to the upper surface;
the gradual change plate is vertically arranged on the lower surface of the air duct, and the interval width of the gradual change plate is shortened along the extension direction.
According to the energy storage device of the embodiment of the application, at least the following beneficial effects are achieved: the refrigerating device is arranged, so that the overall temperature in the container can be controlled; through setting up the wind channel device including wind channel and gradual change board, it is big to realize preceding air-out area, and the air-out area at back is little to guarantee that the amount of wind that obtains is unanimous between the different battery clusters, and then can guarantee the temperature stability between the battery cluster.
According to some embodiments of the present application, the air duct device comprises: and the cross bar is arranged on the gradual change plate and forms an opening with the gradual change plate.
According to some embodiments of the present application, one of the battery clusters includes at least two battery modules; one the battery module includes at least two cells.
According to some embodiments of the application, the refrigeration device comprises: an air conditioner disposed between the housing and the battery cluster; and the fan is arranged on the battery module.
According to some embodiments of the present application, a junction of the air duct device and the air conditioner is a throat for reducing a wind speed.
According to some embodiments of the application, the refrigeration device further comprises: the air conditioner control module is used for controlling the working state of the air conditioner; and the fan control module is used for controlling the working state of the fan.
According to some embodiments of the present application, the air conditioning control module includes: the temperature detection unit is used for detecting the internal temperature of the energy storage device; and the switch control unit controls the air conditioner according to the internal temperature.
According to some embodiments of the present application, the fan control module comprises: the battery management unit is used for detecting a first temperature of the battery module; and the control unit controls the rotating speed of the fan according to the first temperature.
An energy storage device according to an embodiment of the second aspect of the present application includes the energy storage apparatus according to the embodiment of the first aspect of the present application.
An energy storage system according to an embodiment of the third aspect of the present application includes the energy storage device according to the embodiment of the second aspect of the present application.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The present application is further described with reference to the following figures and examples, in which:
fig. 1 is a schematic structural diagram of an energy storage device according to an embodiment of the present application;
FIG. 2 is a schematic structural view of the air duct device 400 shown in FIG. 1;
FIG. 3 is an assembled view of the air duct apparatus 400 of FIG. 2.
Reference numerals:
the air conditioner comprises a shell 100, a battery cluster 200, a battery module 210, a refrigerating device 300, an air conditioner 310, a fan 320, an air duct device 400, an air duct 410, a gradual change plate 420, a cross bar 430 and a necking 500.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present number, and the above, below, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
An energy storage device according to an embodiment of the present application is described below with reference to fig. 1 and 3.
As shown in fig. 1, the energy storage device according to the embodiment of the present application includes a housing 100, a battery cluster 200, a cooling device 300, and an air duct device 400.
The housing 100 defines a receiving chamber; at least two battery clusters 200 are arranged in the accommodating cavity; the refrigerating device 300 is used for regulating the temperature in the accommodating cavity; air duct device 400 is disposed in the accommodating cavity, air duct device 400 includes an air duct 410 and a gradually-changing plate 420, and air duct 410 includes an upper surface and a lower surface opposite to the upper surface. The gradually changing plate 420 is vertically disposed on the lower surface of the air duct 410, and the width of the gradually changing plate 420 is shortened along the extending direction.
For example, as shown in fig. 1, the housing 100 has a rectangular parallelepiped plate-like structure and a hollow structure inside. Inside the case 100, there are provided battery clusters 200, and the number of the battery clusters 200 is at least two, for storing electric energy. The cooling device 300 is provided inside the case 100 for adjusting the temperature inside the case 100.
The air duct device 400 is disposed between the upper portion of the battery cluster 200 and the housing 100, and the air duct device 400 includes an air duct 410 and a gradually changing plate 420. The air duct 410 is a housing structure, one end of the air duct 410 is connected to an air outlet of the air conditioner 310, and the air duct 410 is used for sending cold air generated by the air conditioner 310 into the battery pack 200. The transition plates 420 have a rectangular plate structure, and two transition plates 420 are vertically disposed on one side of the air duct 410 close to the battery cluster 200. The width of the space between the gradually changing plates 420 is gradually reduced, so that the front air outlet area is large, and the rear air outlet area is small. When the air conditioner is started, the generated cool air enters the battery pack 200 along the gradually changing plate 420 of the air duct device 400.
According to the energy storage device provided by the embodiment of the application, the overall temperature in the container can be controlled by arranging the refrigerating device; through setting up the wind channel device including wind channel and gradual change board, it is big to realize preceding air-out area, and the air-out area at back is little to guarantee that the amount of wind that obtains is unanimous between the different battery clusters, and then can guarantee the temperature stability between the battery cluster. In addition, due to the arrangement of the gradual change plate, the air guiding capability of the air duct device is enhanced.
In some embodiments, at least one cross bar is disposed on the transition plate and forms an opening with the transition plate. As shown in fig. 2 and 3, a cross bar 430 is provided on the transition plate 420, and the cross bar 430 forms an opening in cooperation with the transition plate 420, along which the wind enters the battery cluster 200. The number of the openings is changed by controlling the number of the cross bars 430, for example, when the number of the cross bars 430 is 1, the number of the openings is two, and the positions of the cross bars 430 are adjusted according to the air volume calculation so that the air volumes entering the battery clusters 200 through the openings are the same, thereby reducing the temperature difference between different battery clusters 200. The number of the cross bars 430 and the distance between two adjacent cross bars 430 are calculated by simulation software when the energy storage device is out of the field; it is conceivable that the adjustment can also be performed manually, depending on different requirements.
In some embodiments, one battery cluster includes at least two battery modules; a battery module includes two electricity cores at least. The quantity of battery module, electric core all can set up according to energy memory's capacity.
In some embodiments, a refrigeration device comprises: the air conditioner is arranged between the shell and the battery cluster; and the fan is arranged on the battery module. As shown in fig. 1, the air conditioner 310 is disposed between the case 100 and the battery cluster 200. The battery clusters 200 are divided into two groups inside the casing 100, for example, 8 battery clusters 200 are placed, 4 battery clusters 200 are placed on the left and right, and a central control cabinet, a collecting cabinet and the like are placed between the two groups of battery clusters 200. The number of the air conditioners 310 is two, and the two air conditioners are respectively arranged between the battery cluster 200 and the side wall of the shell 100 and used for cooling the whole energy storage device. It is contemplated that the number of air conditioners 310 may be set as desired. The fans 320 are disposed on the battery modules 210, and the number of the fans 320 is the same as that of the battery modules 210, and is used for adjusting the temperature of the battery modules 210.
In some embodiments, the connection between the air duct device and the air conditioner is a throat for reducing the wind speed. As shown in fig. 3, the connection between the air conditioner 310 and the air duct device 400 is a throat 500 structure, and the width of the air duct device 400 is smaller than the width of the air outlet of the air conditioner 310 and is connected through the throat 500 structure. The structure of the throat 500 can reduce the wind speed at the wind outlet of the air conditioner 310, and at the same time, the cold wind is guided into the rear wind channel 410 and then enters the battery pack 200 through the wind hole.
In some embodiments, the refrigeration device further comprises: the air conditioner control module is used for controlling the working state of the air conditioner; and the fan control module is used for controlling the rotating speed of the fan.
In some embodiments, the air conditioning control module comprises: the temperature detection unit is used for detecting the internal temperature of the energy storage device; and a switch control unit for controlling the air conditioner according to the internal temperature. An air conditioning cold spot and a return difference value are set according to the working temperature of the battery core, the internal temperature of the energy storage device is detected through the temperature detection unit, and the working state of the air conditioner is controlled according to the internal temperature. For example, the operating temperature of the battery cell is generally between 25 ℃ and 40 ℃, so the air-conditioning refrigeration point is set to 25 ℃ and the return difference value is set to 3 ℃, wherein the starting point of the air-conditioning refrigeration is the air-conditioning refrigeration point plus the return difference value. When the temperature detection unit detects that the temperature inside the shell is higher than 28 ℃, the air conditioner starts a refrigeration mode and starts to convey cold air to the inside of the shell, so that the temperature inside the shell is reduced; when the temperature detection unit detects that the temperature inside the shell is less than 25 ℃, the air conditioner turns off the refrigeration mode and stops delivering cold air to the inside of the shell, so that the temperature inside the shell can be controlled between 25 ℃ and 28 ℃.
In some embodiments, the fan control module comprises: the battery management unit is used for detecting a first temperature of the battery module; and the control unit controls the rotating speed of the fan according to the first temperature. Detecting a first temperature in the battery module through the battery management unit, namely the average temperature of a battery core in the module; the battery management unit uploads the detected module temperature to a processing center, and the internal average temperature of the battery cluster is obtained through calculation; the control unit controls the rotation speed of the fan according to the comparison result of the first temperature and the internal average temperature of the battery cluster. For example, when the internal average temperature of the battery cluster is set to 28 ℃, the control unit controls the rotation speed of the fan when the temperature difference between the first temperature and the internal average temperature of the battery cluster is within 1 ℃, and the output duty ratio of the fan is 30%. When the first temperature is less than the internal average temperature of the battery cluster, the output duty cycle of the fan is 20% when the temperature difference is between 1 and 2 ℃; when the temperature difference is between 2 and 3 ℃, the output duty ratio of the fan is 10 percent. When the first temperature is greater than the internal average temperature of the battery cluster, the output duty cycle of the fan is 50% when the temperature difference is between 1 and 2 ℃; when the temperature difference is between 2 and 3 ℃, the output duty ratio of the fan is 70 percent; when the temperature difference is greater than 3 ℃, the output duty cycle of the fan is 100%, the maximum rotating speed is reached, and the temperature of the battery module is reduced in an express way. Through fan control module, can realize the temperature stability between the different battery module in the battery cluster, and then guarantee that energy memory works under suitable temperature to extension energy memory's working life. It is conceivable that the relationship between the internal average temperature of the battery cluster, the temperature difference, and the duty ratio of the fan output may be set according to actual requirements.
In some embodiments, the present application further provides an energy storage device, including the energy storage device in any of the above embodiments.
In some embodiments, the present application further provides an energy storage system including the energy storage device described in any of the above embodiments.
An energy storage device according to an embodiment of the present application is described in detail below in one specific embodiment with reference to the drawings. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.
As shown in fig. 1 to 3, the housing 100 of the energy storage device has a rectangular parallelepiped plate-shaped structure, and the interior of the housing has a hollow cavity structure. The battery clusters 200 are arranged in the shell 100, the number of the battery clusters 200 is eight, the battery clusters 200 are used for storing electric energy, the battery clusters 200 are evenly divided into two groups in the shell 100 and placed left and right, and a space is reserved between the two groups for placing devices such as a central control cabinet and a junction cabinet. One battery cluster 200 includes twenty-eight battery modules 210, and one battery module 210 includes at least two battery cells, and the specific number may be set according to the capacity of the energy storage device.
The air duct device 400 is disposed between the upper portion of the battery pack 200 and the housing 100, connected to an air outlet of the air conditioner 310, and configured to send cold air generated by the air conditioner 310 into the battery pack 200. The air duct device 400 includes an air duct 410 and a gradually changing plate 420, wherein the air duct 410 is a shell structure, one end of the air duct is connected with the air outlet of the air conditioner 310, and the other end of the air duct is a closed structure. The gradual change plates 420 are rectangular plate-shaped structures, two gradual change plates 420 are vertically arranged on one side of the air duct 410 close to the battery cluster 200, and the space width of the gradual change plates 420 is gradually reduced, so that the front air outlet area is large, and the rear air outlet area is small. Eight cross bars 430 are further disposed on the transition plate 420, and nine openings are formed with the transition plate 420. When the air conditioner 310 is activated, the generated cool air flows along the air duct device 400 and enters the battery pack 200 through the opening. The number of the cross bars 430 and the area of the opening are designed through simulation software before the energy storage device leaves a factory.
The energy storage device further comprises a refrigeration device 300, and the refrigeration device 300 comprises an air conditioner 310, a fan 320, an air conditioner control module and a fan control module. The air conditioner 310 is arranged between the side wall of the shell 100 and the battery cluster 200 and used for cooling the energy storage device; the fans 320 are disposed on the battery modules 210 for adjusting the temperature of the battery modules 210, wherein the number of the fans 320 is the same as that of the battery modules 210.
The control module of the air conditioner 310 includes a temperature detection unit and a switch control unit. When the temperature detection unit detects that the temperature inside the casing 100 is higher than 28 ℃, the air conditioner 310 starts a cooling mode to start to convey cold air to the inside of the casing 100, so that the temperature inside the casing 100 is reduced; when the temperature detection unit detects that the internal temperature of the casing 100 is less than 25 deg.c, the air conditioner 310 turns off the cooling mode, and stops the supply of cold air to the inside of the casing 100, thereby enabling the internal temperature of the casing 100 to be controlled between 25 deg.c and 28 deg.c.
The fan control module comprises a battery management unit and a control unit. The internal average temperature of the battery cluster 200 is set to 28 ℃, the battery management unit detects a first temperature in the battery module 210, and the control unit controls the output duty ratio of the fan 320 according to the comparison result of the first temperature and the internal average temperature of the battery cluster 200, thereby controlling the rotation speed of the fan 320. By the fan control module, the temperature of the battery pack 200 can be kept stable by controlling the temperature of the battery module 210.
According to the energy storage device of the embodiment of the application, at least the following effects can be achieved by the arrangement of the air duct device 400 comprising the air duct 410 and the gradually-changing plate 420, the large air outlet area in the front and the small air outlet area in the back are achieved, so that the air volume obtained among different battery clusters 200 is ensured to be consistent, the temperature among the battery clusters 200 can be further ensured to be stable, and the air guide capacity of the air duct device 400 is enhanced due to the arrangement of the gradually-changing plate 420; the air conditioner control module and the fan control module can respectively ensure that the temperature of the energy storage device and the temperature of the battery pack 200 are kept stable, so that the stability of the energy storage device can be improved, and the service life of the energy storage device can be prolonged.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. An energy storage device, comprising:
a housing defining a receiving cavity;
at least two battery clusters arranged in the accommodating cavity;
the refrigerating device is used for adjusting the temperature in the accommodating cavity;
the air channel device is arranged in the accommodating cavity and comprises an air channel and a gradual change plate, and the air channel comprises an upper surface and a lower surface opposite to the upper surface;
the gradual change plate is vertically arranged on the lower surface of the air duct, and the space width of the gradual change plate is gradually reduced along the extension direction.
2. The energy storage device of claim 1, wherein said air duct means comprises:
and the cross bar is arranged on the gradual change plate and forms an opening with the gradual change plate.
3. The energy storage device according to claim 2, wherein one of the battery clusters includes at least two battery modules; one the battery module includes at least two cells.
4. The energy storage device of claim 3, wherein said refrigeration device comprises:
an air conditioner disposed between the housing and the battery cluster;
and the fan is arranged on the battery module.
5. The energy storage device of claim 4, wherein the connection between the air duct device and the air conditioner is a throat for reducing the wind speed.
6. The energy storage device of claim 5, wherein said refrigeration device further comprises:
the air conditioner control module is used for controlling the working state of the air conditioner;
and the fan control module is used for controlling the working state of the fan.
7. The energy storage device of claim 6, wherein the air conditioning control module comprises:
the temperature detection unit is used for detecting the internal temperature of the energy storage device;
and the switch control unit controls the air conditioner according to the internal temperature.
8. The energy storage device of claim 7, wherein the fan control module comprises:
the battery management unit is used for detecting a first temperature of the battery module;
and the control unit controls the rotating speed of the fan according to the first temperature.
9. Energy storage device, characterized in that it comprises an energy storage apparatus according to any one of claims 1 to 8.
10. Energy storage system, characterized in that it comprises an energy storage device according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910557.2U CN214176104U (en) | 2020-12-04 | 2020-12-04 | Energy storage device, equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910557.2U CN214176104U (en) | 2020-12-04 | 2020-12-04 | Energy storage device, equipment and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214176104U true CN214176104U (en) | 2021-09-10 |
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ID=77604496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022910557.2U Active CN214176104U (en) | 2020-12-04 | 2020-12-04 | Energy storage device, equipment and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214176104U (en) |
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2020
- 2020-12-04 CN CN202022910557.2U patent/CN214176104U/en active Active
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