WO2024037505A1 - 干燥装置和电池单体干燥系统 - Google Patents

干燥装置和电池单体干燥系统 Download PDF

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Publication number
WO2024037505A1
WO2024037505A1 PCT/CN2023/112948 CN2023112948W WO2024037505A1 WO 2024037505 A1 WO2024037505 A1 WO 2024037505A1 CN 2023112948 W CN2023112948 W CN 2023112948W WO 2024037505 A1 WO2024037505 A1 WO 2024037505A1
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WO
WIPO (PCT)
Prior art keywords
drying
drying device
present application
cavity
valve
Prior art date
Application number
PCT/CN2023/112948
Other languages
English (en)
French (fr)
Inventor
黎扬波
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2024037505A1 publication Critical patent/WO2024037505A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/14—Chambers, containers, receptacles of simple construction
    • F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general

Definitions

  • the present application relates to the field of battery technology, and in particular to a drying device and a battery cell drying system.
  • Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection.
  • battery technology is an important factor related to their development.
  • the battery cells need to be dried before being put into use to prevent the presence of moisture in the battery cells from affecting the safety performance of the battery.
  • a drying device is used to dry the battery cells.
  • the energy consumption of drying devices is relatively high.
  • This application aims to solve at least one of the technical problems existing in the background art.
  • one purpose of the present application is to provide a drying device and a battery cell drying system to improve the problems in related technologies.
  • the embodiment of the first aspect of the present application provides a drying device.
  • the drying device includes: at least two drying boxes, at least two drying boxes each have a drying cavity, and the drying chambers of the at least two drying boxes are connected to each other; a communication valve , used to control the connection and closing of the drying chambers of two interconnected drying boxes.
  • the connecting valve controls the closing of the two drying chambers.
  • the connecting valve controls the two drying chambers.
  • the two drying chambers are connected. Since the temperatures of the two drying chambers are different, heat will be transferred to the other drying chamber, causing the temperature of the drying chamber of the second drying chamber to increase. When the second drying chamber is subsequently heated, the energy consumed Less, less energy consumption.
  • both drying boxes have communication interfaces
  • the drying device further includes: a communication pipe, both ends of the communication pipe are respectively connected to the communication interfaces of the two drying boxes, and the communication valve is located on the communication pipe.
  • the two drying boxes are connected through a connecting pipe, so that the connecting valve can be set on the connecting pipe to facilitate the arrangement of the connecting valve.
  • the drying box has a top wall, a bottom wall and a side wall, the top wall is opposite to the bottom wall, and the side wall connects the top wall and the bottom wall; the communication interface is located on the side wall. It is more convenient to arrange the communication interface on the side wall of the drying box.
  • the communication interface is located on the side wall closer to the bottom wall than the top wall.
  • heat When heat is transferred between two drying cavities, it is generally transferred using gas as the medium.
  • the hot gas generally moves upward. If the connecting interface is set close to the bottom wall, the hot gas will flow from the bottom to the drying cavity. Move toward the top, causing the temperature of the entire drying chamber to rise.
  • the drying device further includes: a temperature sensor located in the drying cavity, and the temperature sensor is used to detect the temperature of the drying cavity.
  • the temperature sensor can be used to detect whether the temperature of the drying chamber reaches the set value when the drying oven is working. It can also be used to detect whether the temperatures of the two drying chambers are balanced during heat transfer. When the temperature of the two drying chambers is When the temperature is balanced, the connecting valve can be closed, and then the drying oven is heated to avoid heat backflow and increase energy consumption.
  • the drying device further includes: a storage container movably located in the drying chamber.
  • the storage rack is used to place the battery cells, and the storage device is removably located in the drying cavity, so that the battery cells can be easily taken out.
  • the storage container includes: a storage frame having a storage cavity; a partition located in the storage cavity, and the partition divides the storage cavity into a plurality of sub-storage cavities.
  • the storage frame forms the overall outer frame of the storage device, and the partition divides the storage cavity into multiple sub-storage cavities.
  • Each sub-storage cavity can be used to place battery cells, so that in a drying process, the drying device can A larger number of battery cells are dried to improve work efficiency.
  • the partition includes opposite first and second clamping plates
  • the drying device further includes: a heater located between the first and second clamping plates.
  • a heater is arranged for heating, and the heater is arranged on the partition, and the battery cells are placed on the partition.
  • the heater is closer to the battery cells, and the temperature of the battery cells increases faster, making it easier for the moisture in the battery cells to evaporation.
  • the heater is arranged between the first plywood and the second plywood to prevent the heater from directly contacting the battery cells and affecting the battery cells.
  • the drying box has an inlet and an outlet, both of which are connected to the drying cavity; the inlet is used to transport gas into the drying cavity; and the outlet is used to output the gas in the drying cavity.
  • both the inlet and the outlet are located on a side wall of the drying box, and both the inlet and the outlet are located on the side wall closer to the top wall than the bottom wall. It is more convenient to arrange the inlet and outlet on the side wall, and at the same time, the inlet and outlet are close to the top wall to avoid interference between the inlet and outlet and the connecting interface.
  • the drying device further includes: a delivery pipe connected to the inlet; and an output pipe connected to the outlet. Arrange the transportation pipeline and output pipeline to connect with the inlet and outlet respectively to facilitate the output and transportation of gas.
  • the drying device further includes: a first valve located on the delivery pipeline; and a second valve located on the output pipeline.
  • the first valve can be used to control the connection and closing of the inlet; the second valve can be used to control the connection and closing of the outlet, which is more convenient.
  • the communication valve is a flapper valve. Due to the existence of vacuum in the drying chamber, the baffle valve is more suitable for vacuum environments than other valves and is less prone to failure and damage.
  • a second embodiment of the present application provides a battery cell drying system.
  • the battery cell drying system includes the drying device in the above embodiment.
  • Figure 1 is a schematic structural diagram of a drying device according to some embodiments of the present application.
  • Figure 2 is a schematic structural diagram of a drying device according to other embodiments of the present application.
  • Figure 3 is a schematic structural diagram of a drying box according to other embodiments of the present application.
  • Figure 4 is a schematic structural diagram of a storage device according to some embodiments of the present application.
  • Figure 5 is a partial structural schematic diagram of a storage device according to some embodiments of the present application.
  • Figure 6 is a schematic structural diagram of a partition according to some embodiments of the present application.
  • Figure 7 is a simple cross-sectional schematic diagram of a partition according to some embodiments of the present application.
  • Figure 8 is a schematic structural diagram of a heater according to some embodiments of the present application.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • multiple refers to more than two (including two).
  • multiple groups refers to two or more groups (including two groups), and “multiple pieces” refers to It is more than two pieces (including two pieces).
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in many fields such as military equipment and aerospace. . As the application fields of power batteries continue to expand, their market demand is also constantly expanding.
  • a drying device is used to dry the battery cells, and the battery cells are placed in the drying chamber of the drying device.
  • the drying device works to remove unnecessary moisture from the battery cells.
  • the drying chambers in the drying device work independently. When one of the drying chambers dries the battery cells, the battery cells will be taken out of the drying chamber. During the process of taking out the battery cells, the drying chamber The cavity will be connected to the external environment, causing the temperature inside the drying cavity to decrease, resulting in heat loss and higher energy consumption of the drying device.
  • the embodiment of the present application provides a drying device that connects two drying cavities and sets a connecting valve to control the communication and closing of the two drying cavities.
  • a drying device that connects two drying cavities and sets a connecting valve to control the communication and closing of the two drying cavities.
  • FIG. 1 is a schematic structural diagram of a drying device in some embodiments of the present application.
  • the drying device includes at least two drying boxes 10 and communication valves 20.
  • At least two drying boxes 10 each have drying chambers 101, and the drying chambers 101 of at least two drying boxes 10 are connected to each other; the communication valve 20 is used to control the communication and closing of the drying chambers 101 of the two drying boxes 10 that are connected to each other. .
  • the drying device can be used to dry the battery cells 120 , and the battery cells 120 are placed in the drying chamber 101 of the drying box 10 .
  • the drying device includes two drying boxes 10 and one communicating valve 20 .
  • the drying device may include a larger number of drying boxes 10 and communicating valves 20 .
  • the drying device includes three drying chambers 10 , and the three drying chambers 10 include three drying chambers 101 .
  • the first drying chamber 101 and the second drying chamber 101 The second drying chamber 101 is also connected with the third drying chamber 101.
  • the drying device includes two communicating valves 20, one of which is used to control the phase between the first drying chamber 101 and the second drying chamber 101.
  • the cavity 101 is connected and closed, and another communication valve 20 is used to control the communication and closure of the second drying cavity 101 and the third drying cavity 101 .
  • the first drying cavity 101 is connected to the second drying cavity 101
  • the second drying cavity 101 is connected to the third drying cavity 101
  • the first drying cavity 101 is connected to the third drying cavity 101
  • the drying chamber 101 is connected with the third drying chamber 101.
  • the drying device includes three communication valves 20.
  • the first communication valve 20 is used to control the communication between the first drying chamber 101 and the second drying chamber 101. Close, the second communication valve 20 is used to control the communication and closure of the second drying chamber 101 and the third drying chamber 101, and the third communication valve 20 is used to control the communication between the first drying chamber 101 and the third drying chamber 101.
  • the three drying cavities 101 are connected and closed.
  • the two interconnected drying boxes 10 are controlled through a communication valve 20, which makes the structure simpler.
  • two interconnected drying boxes 10 can be controlled through two or more communication valves 20 . When one communication valve 20 is damaged, the other communication valves 20 can still work.
  • the communication valve 20 is closed. That is, when the drying box 10 is drying the battery cells 120 , the drying boxes 10 are independent of each other. , to avoid mutual influence.
  • the drying box 10 has a door, which makes it easy to open the drying box 10 and access the battery cells 120 .
  • the drying device includes two drying boxes 10 and a connecting valve 20, where the two drying boxes 10 include a first drying box 105 and a second drying box 106.
  • the drying chamber 101 of the drying box 105 is the first drying chamber 151
  • the drying chamber 101 of the second drying box 106 is the second drying chamber 161 for explanation.
  • the communication valve 20 controls the two drying chambers 101 to close.
  • the communication valve 20 controls the communication between the two drying chambers 101. Since the temperatures of the two drying chambers 101 are different, the heat It will be transferred to another drying box 10 (second drying box 106), causing the temperature of the second drying chamber 161 of the second drying box 106 to increase. When the second drying box 106 is subsequently heated, less energy is consumed. , reduce energy consumption.
  • both drying boxes 10 have communication interfaces 102.
  • the drying device also includes a communication pipe 30. Both ends of the communication pipe 30 are respectively connected to the communication interfaces 102 of the two drying boxes 10.
  • the communication valve 20 is located on the communication pipe 30 .
  • the first drying box 105 and the second drying box 106 are connected through the communication pipe 30.
  • the first drying box 105 and the second drying box 106 can share a side wall.
  • a communication interface 102 is opened on the side wall, and the communication valve 20 is arranged at the communication interface 102.
  • the two drying boxes 10 are connected through the connecting pipe 30, so that the connecting valve 20 can be disposed on the connecting pipe 30, which facilitates the arrangement of the connecting valve 20.
  • the drying box 10 has a top wall 11, a bottom wall 12 and a side wall 13.
  • the top wall 11 is opposite to the bottom wall 12, and the side wall 13 connects the top wall 11 and the bottom wall 12.
  • the interface 102 is located on the side wall 13 .
  • the communication interface 102 is located on the side wall 13 . In other implementations, the communication interface 102 may be located on the top wall 11 or the bottom wall 12 .
  • the communication interface 102 it is more convenient to arrange the communication interface 102 on the side wall 13 of the drying box 10 .
  • the communication interface 102 is located on the side wall 13 closer to the bottom wall 12 than the top wall 11 .
  • the communication interface 102 is close to the bottom wall 12 . In other implementations, the communication interface 102 may be located in the middle of the side wall 13 , or the communication interface 102 may be close to the top wall 11 .
  • the hot gas when heat is transferred between the first drying chamber 151 and the second drying chamber 161, it is generally transferred using gas as a medium.
  • the hot gas generally moves upward.
  • the communication interface 102 is set Near the bottom wall 12, the hot gas will move from the bottom to the top in the drying chamber 101, thereby causing the temperature of the entire drying chamber 101 to increase.
  • FIG. 2 is a schematic structural diagram of a drying device in other embodiments of the present application.
  • the drying device also includes a temperature sensor 40.
  • the temperature sensor 40 is located in the drying chamber 101.
  • the temperature sensor 40 is used to detect the temperature of the drying chamber 101.
  • the position of the temperature sensor 40 in the drying cavity 101 is not limited, as long as it can detect the temperature of the drying cavity 101 .
  • one temperature sensor 40 is arranged in a drying box 10, which makes the structure simpler.
  • two or more temperature sensors 40 can be arranged in one drying box 10. When one of the temperature sensors 40 is damaged, the other temperature sensors 40 can still work, preventing Affect the operation of the entire drying device.
  • the temperature value measured by one of the temperature sensors 40 can be used as the temperature of the drying chamber 101, or the temperature value measured by multiple temperature sensors 40 can be used.
  • the average temperature is used as the temperature of the drying chamber 101 .
  • the temperature sensor 40 can be used to detect whether the temperature of the drying cavity 101 reaches the set value when the drying box 10 is operating, and can also be used to detect whether the temperature of the two drying cavities 101 reaches the set value during heat transfer. Whether the temperatures are balanced, when the temperatures of the two drying chambers 101 are balanced, the connecting valve 20 can be closed, and then the drying box 10 is heated again to avoid heat backflow and increase energy consumption.
  • the drying device when the temperatures of the two drying chambers 101 are not balanced after the connecting valve 20 is opened for a set time, it indicates that there may be a fault in the drying device, and the drying device can be inspected and repaired to eliminate the fault.
  • the set time may be 30 minutes.
  • FIG. 3 is a schematic structural diagram of a drying box in other embodiments of the present application.
  • the drying device further includes a storage container 50 , which is movably located in the drying cavity 101 .
  • the storage device 50 may be a storage rack or a storage trolley.
  • rollers may be arranged on the bottom of the trolley to facilitate taking out the trolley from the drying cavity 101 .
  • a storage container 50 is arranged in the drying cavity 101.
  • the storage container 50 is used to place the battery cells 120, and the storage container 50 is movably located in the drying cavity 101, which facilitates the removal of the battery cells 120. .
  • multiple storage containers 50 can be placed in one drying cavity 101, so that a larger number of battery cells 120 can be placed in one drying cavity 101, thereby improving work efficiency.
  • FIG. 4 is a schematic structural diagram of a storage device according to some embodiments of the present application.
  • the storage device 50 includes a storage frame 501 and a partition 502.
  • the storage frame 501 has a storage cavity 511; the partition 502 is located in the storage cavity 511, and the partition 502 divides the storage cavity 511 into a plurality of sub-storage cavities. 512.
  • a storage container 50 may include multiple partitions 502, so that the partitions 502 can divide the storage cavity 511 into multiple sub-storage cavities 512, and each sub-storage cavity 512 can be used for placing 120 battery cells.
  • the distance between two adjacent partitions 502 needs to be greater than the height of the battery cell 120 to ensure that the battery cell 120 can be placed between two adjacent partitions 502 .
  • the storage frame 501 forms the overall outer frame of the storage container 50, and the partition 502 divides the storage cavity 511 into a plurality of sub-storage cavities 512.
  • Each sub-storage cavity 512 can be used to place battery cells. body 120, so that in one drying process, the drying device can dry a larger number of battery cells 120, thereby improving work efficiency.
  • the partition 502 is slidably connected to the side wall of the storage frame 501, so that the partition 502 can slide, so that when taking and placing the battery cells 120, the partition 502 can be removed from the cavity of the storage frame 501. After the battery cells 120 are taken in and out, the partition 502 is pushed into the cavity of the storage frame 501 , which makes it easier to take in and out the battery cells 120 .
  • FIG. 5 is a partial structural diagram of a storage device according to some embodiments of the present application.
  • the storage container 50 also includes a hoop 503.
  • the hoop 503 is annular.
  • the hoop 503 is arranged around the partition 502.
  • the battery cells 120 are located in the space formed by the hoop 503 and the partition 502. In this way, the hoop 503 A blocking structure is formed to prevent the battery cells 120 from falling from the separator 502 .
  • FIG. 6 is a schematic structural diagram of a partition according to some embodiments of the present application.
  • Figure 7 is a simplified cross-sectional schematic diagram of a partition according to some embodiments of the present application. 6 and 7 , the partition 502 includes opposite first and second clamping plates 521 and 522 , and the drying device further includes a heater 60 , and the heater 60 is located between the first and second clamping plates 521 and 522 .
  • the heater 60 is used for heating and increasing the temperature in the drying chamber 101 .
  • the temperature in the drying cavity 101 is greater than 100°C, which facilitates evaporation of water.
  • the temperature in the drying cavity 101 is 105°C.
  • the heater 60 is arranged for heating, and the heater 60 is arranged on the partition 502, and the battery cell 120 is placed on the partition 502, so that the heater 60 is closer to the battery cell 120, and the battery cell 120 is The temperature of battery cell 120 increases faster, making it easier for the water in battery cell 120 to evaporate.
  • the heater 60 is arranged between the first clamping plate 521 and the second clamping plate 522 to prevent the heater 60 from directly contacting the battery cells 120 and affecting the battery cells 120 .
  • the temperature sensor 40 may be arranged on the separator 502 , so that the temperature sensor 40 can more easily detect the temperature of the battery cell 120 .
  • FIG 8 is a schematic structural diagram of a heater according to some embodiments of the present application.
  • the heater 60 may be a heating wire.
  • the drying box 10 has an inlet 103 and an outlet 104, both of which are connected to the drying cavity 101; the inlet 103 is used to transport gas into the drying cavity 101; the outlet 104 is used to output the gas in the drying chamber 101.
  • the gas delivered to the drying chamber 101 may be air or nitrogen.
  • the communication valve 20 is first closed, and then the gas in the drying chamber 101 is extracted through the outlet 104, so that the pressure in the drying chamber 101 is lower than the atmospheric pressure (for example, The drying chamber 101 is vacuum), and then the drying chamber 101 is heated. After the heating is completed, gas is transported into the drying chamber 101 through the inlet 103 so that the pressure in the drying chamber 101 is greater than or equal to atmospheric pressure.
  • the pressure of the drying chamber 101 is less than or equal to 100 Pascals (Pa).
  • the drying chamber 101 when the drying device is working, since the pressure in the drying chamber 101 is lower than the atmospheric pressure, the moisture in the battery cells 120 is more likely to come out of the battery cells 120 and be evaporated. After drying is completed, the drying chamber 101 is in a vacuum state. Gas is transported into the drying chamber 101 so that the pressure in the drying chamber 101 is greater than or equal to atmospheric pressure, which facilitates opening the door of the drying device.
  • both the inlet 103 and the outlet 104 are located on the side wall 13 of the drying box 10 , and both the inlet 103 and the outlet 104 are located on the side wall 13 closer to the top wall 11 than the bottom wall 12 .
  • the inlet 103 and the outlet 104 are arranged on the side wall 13. At the same time, the inlet 103 and the outlet 104 are close to the top wall 11 to avoid interference between the inlet 103 and the outlet 104 and the communication interface 102.
  • the drying device further includes: a delivery pipe 70 and an output pipe 80 .
  • the delivery pipe 70 is connected to the inlet 103
  • the output pipe 80 is connected to the outlet 104 .
  • the delivery pipeline 70 and the output pipeline 80 are arranged to communicate with the inlet 103 and the outlet 104 respectively to facilitate the output and delivery of gas.
  • the drying device further includes: a first valve 90 and a second valve 110 .
  • the first valve 90 is located on the delivery pipeline 70 ; the second valve 110 is located on the output pipeline 80 .
  • the first valve 90 can be used to control the communication and closing of the inlet 103; the second valve 110 can be used to control the communication and closing of the outlet 104, which is more convenient.
  • the communication valve 20 is a flapper valve.
  • the baffle valve is more suitable for the vacuum environment than other valves and is less likely to fail and be damaged.
  • the communication valve 20, the first valve 90 and the second valve 110 are all electric valves and can be controlled by a computer program.
  • the battery cell drying system includes the drying device in the above embodiments.
  • the battery cell drying system provided by the embodiment of the present application has low energy consumption.
  • the embodiment of the present application provides a drying device.
  • the drying device includes two drying boxes 10, a connecting valve 20, a connecting pipe 30, a temperature sensor 40, a storage device 50, a heater 60, a conveying pipe 70, an output pipe 80, a first Valve 90 and second valve 110.
  • Both drying boxes 10 have drying chambers 101, and the drying chambers 101 of the two drying boxes 10 are connected to each other.
  • Both drying boxes 10 have a communication interface 102, an inlet 103 and an outlet 104.
  • the communication interface 102, the inlet 103 and the outlet 104 are all located on the side wall 13 of the drying box 10.
  • the communication interface 102 is close to the bottom wall 12, and the inlet 103 and the outlet 104 are located on the side wall 13 of the drying box 10. Close to the top wall 11.
  • Both ends of the communication pipe 30 are respectively connected to the communication interfaces 102 of the two drying boxes 10 , and the communication valve 20 is located on the communication pipe 30 .
  • the temperature sensor 40 is located in the drying chamber 101 .
  • the storage container 50 is movably located in the drying chamber 101 .
  • the delivery pipe 70 is connected to the inlet 103 , and the output pipe 80 is connected to the outlet 104 .
  • the first valve 90 is located on the delivery pipeline 70 ; the second valve 110 is located on the output pipeline 80 .
  • the communication valve 20 is a flapper valve.
  • the storage device 50 includes a storage frame 501, a partition 502 and a surrounding panel 503.
  • the storage frame 501 has a storage cavity 511; the partition 502 is located in the storage cavity 511, and the partition 502 divides the storage cavity 511 into a plurality of sub-storage cavity. 512.
  • the enclosure 503 is annular and is arranged around the partition 502 .
  • the battery cells 120 are located in the space formed by the enclosure 503 and the partition 502 .
  • the partition 502 includes opposite first and second clamping plates 521 and 522 , and the heater 60 is located between the first and second clamping plates 521 and 522 .
  • the drying process of the drying device will be explained below by taking the drying device of the embodiment of the present application as an example.
  • Step S901 Close the communication valve 20.
  • the communication valve 20 is closed to prevent the first drying box 105 and the second drying box 106 from interfering with each other.
  • Step S902 Open the second valve 110 on the first drying box 105.
  • the second valve 110 on the first drying box 105 is opened, and the outlet 104 on the first drying box 105 is connected.
  • Step S903 Remove the gas in the first drying chamber 151.
  • the gas in the first drying chamber 151 is evacuated through the outlet 104, so that the first drying chamber 151 is in a vacuum state.
  • Step S904 Control the heater 60 in the first drying chamber 151 to perform heating.
  • the heater 60 is heated to increase the temperature in the first drying chamber 151 to perform drying work.
  • Step S905 Open the first valve 90.
  • the first valve 90 is opened, and the inlet 103 on the first drying box 105 is connected.
  • Step S906 Input gas into the first drying chamber 151.
  • Gas is input into the first drying chamber 151 through the inlet 103, so that the pressure of the first drying chamber 151 is increased.
  • Step S907 Open the communication valve 20.
  • the hot air in the first drying chamber 151 enters the second drying chamber 161 .
  • Step S908 Close the communication valve 20.
  • the communication valve 20 is closed.
  • the battery cells 120 in the first drying chamber 151 can be taken out.
  • Step S909 Open the second valve 110 on the second drying box 106.
  • the second valve 110 on the second drying box 106 is opened, and the outlet 104 on the second drying box 106 is connected.
  • Step S910 Remove the gas in the second drying chamber 161.
  • the gas in the second drying chamber 161 is evacuated through the outlet 104, so that the second drying chamber 161 is in a vacuum state.
  • Step S911 Control the heater 60 in the second drying box 106 to perform heating.
  • the heater 60 is heated to increase the temperature in the second drying chamber 161 to perform drying work.
  • Step S912 Open the first valve 90 on the second drying box 106.
  • the first valve 90 is opened, and the inlet 103 on the second drying box 106 is connected.
  • Step S913 Input gas into the second drying chamber 161.
  • Gas is input into the second drying chamber 161 through the inlet 103, so that the pressure of the second drying chamber 161 is increased.
  • the communication valve 20 can be opened to allow the hot gas in the second drying chamber 161 to enter the first drying chamber 151, thereby realizing energy recycling again.

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  • Manufacturing & Machinery (AREA)
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Abstract

本申请提供一种干燥装置和电池单体干燥系统，属于电池技术领域。干燥装置包括至少两个干燥箱，至少两个干燥箱均具有干燥腔体，至少两个干燥箱的干燥腔体相互连通；连通阀门，用于控制相互连通的两个干燥箱的干燥腔体的连通与关闭。在干燥装置的其中一个干燥箱进行干燥工作时，连通阀门控制两个干燥腔体关闭，当第一个干燥箱完成干燥工作后，连通阀门控制两个干燥腔体连通，由于两个干燥腔体的温度不同，热量会向另一个干燥箱传递，使得第二个干燥箱的干燥腔体的温度升高，后续对第二个干燥箱进行加热时，消耗的能量较少，减少能耗。

Description

干燥装置和电池单体干燥系统
交叉引用
本申请引用于2022年8月19日递交的名称为“干燥装置和电池单体干燥系统”的第202222182883.5号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及电池技术领域，尤其涉及一种干燥装置和电池单体干燥系统。
背景技术
节能减排是汽车产业可持续发展的关键，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
电池的电池单体在投入使用前需对电池单体进行干燥处理，避免电池单体中存在水分影响电池的安全性能。
一般会使用干燥装置对电池单体进行干燥。相关技术中，干燥装置的能耗较高。
发明内容
本申请旨在至少解决背景技术中存在的技术问题之一。为此，本申请的一个目的在于提供一种干燥装置和电池单体干燥系统，以改善相关技术中的问题。
本申请第一方面的实施例提供了一种干燥装置，干燥装置包括：至少两个干燥箱，至少两个干燥箱均具有干燥腔体，至少两个干燥箱的干燥腔体相互连通；连通阀门，用于控制相互连通的两个干燥箱的干燥腔体的连通与关闭。
本申请实施例的技术方案中，在干燥装置的其中一个干燥箱进行干燥工作时，连通阀门控制两个干燥腔体关闭，当第一个干燥箱完成干燥工作后，连通阀门控制两个干燥腔体连通，由于两个干燥腔体的温度不同，热量会向另一个干燥箱传递，使得第二个干燥箱的干燥腔体的温度升高，后续对第二干燥箱进行加热时，消耗的能量较少，减少能耗。
在一些实施例中，两个干燥箱均具有连通接口，干燥装置还包括：连通管道，连通管道的两端分别与两个干燥箱的连通接口连接，连通阀门位于连通管道上。通过连通管道将两个干燥箱连通，这样连通阀门可以设置在连通管道上，便于布置连通阀门。
在一些实施例中，干燥箱具有顶壁、底壁和侧壁，顶壁与底壁相对，侧壁连接顶壁和底壁；连通接口位于侧壁。将连通接口布置在干燥箱的侧壁上更加方便。
在一些实施例中，连通接口位于侧壁的与顶壁相比更靠近底壁的位置。热量在两个干燥腔体之间传递时，一般是以气体为介质进行传递的，热气体一般是向上移动的，将连通接口设置在靠近底壁的位置，热气体会在干燥腔体中从底部向顶部移动，从而使得整个干燥腔体的温度均升高。
在一些实施例中，干燥装置还包括：温度传感器，位于干燥腔体内，温度传感器用于检测干燥腔体的温度。温度传感器可以用于检测在干燥箱工作时干燥腔体的温度是否达到设定值，也可以用于检测在进行热量传递时，两个干燥腔体的温度是否平衡，当两个干燥腔体的温度平衡时，可以将连通阀门关闭，然后干燥箱再进行加热，避免热量回流增加能耗。
在一些实施例中，干燥装置还包括：置物器，可移动地位于干燥腔体内。置物架用于放置电池单体，且置物器可移动地位于干燥腔体内，这样便于取出电池单体。
在一些实施例中，置物器包括：置物框，具有置物腔体；隔板，位于置物腔体内，隔板将置物腔体分隔成多个子置物腔体。置物框形成置物器的整体外边框，隔板将置物腔体分隔成多个子置物腔体，每一个子置物腔体均可以用于放置电池单体，使得在一个干燥工序中，干燥装置可以对更多数量的电池单体进行干燥，提高工作效率。
在一些实施例中，隔板包括相对的第一夹板和第二夹板，干燥装置还包括：加热器，位于第一夹板和第二夹板之间。布置加热器进行加热，且加热器布置在隔板上，隔板上放置电池单体，这样加热器距离电池单体较近，电池单体的温度提升更快，使得电池单体中的水分更易蒸发。同时将加热器布置在第一夹板和第二夹板之间，避免加热器直接与电池单体接触，对电池单体造成影响。
在一些实施例中，干燥箱具有入口和出口，入口和出口均与干燥腔体连通；入口用于向干燥腔体中输送气体；出口用于输出干燥腔体中的气体。在干燥装置工作时，由于干燥腔体中的压强低于大气压，使得电池单体中的水分更易从电池单体中出来被蒸发掉。待干燥完成后，此时干燥腔体处于真空状态，向干燥腔体中输送气体，使得干燥腔体中的压强大于或等于大气压这样便于打开干燥装置的门。
在一些实施例中，入口和出口均位于干燥箱的侧壁，且入口和出口均位于侧壁的与底壁相比更靠近顶壁的位置。入口和出口布置在侧壁上更加方便，同时入口和出口靠近顶壁，避免入口和出口与连通接口产生干扰。
在一些实施例中，干燥装置还包括：输送管道，与入口连通；输出管道，与出口连通。布置输送管道和输出管道，分别与入口和出口连通，方便输出和输送气体。
在一些实施例中，干燥装置还包括：第一阀门，位于输送管道上；第二阀门，位于输出管道上。可以通过第一阀门控制入口的连通与关闭；第二阀门控制出口的连通与关闭，更加方便。
在一些实施例中，连通阀门为挡板阀。由于干燥腔体中存在真空的情况，挡板阀相较于其他阀门来说更加适合真空环境，不易失效和损坏。
本申请第二方面的实施例提供一种电池单体干燥系统，电池单体干燥系统包括上述实施例中的干燥装置。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
在附图中，除非另外规定，否则贯穿多个附图相同的附图标记表示相同或相似的部件或元素。这些附图不一定是按照比例绘制的。应该理解，这些附图仅描绘了根据本申请公开的一些实施方式，而不应将其视为是对本申请范围的限制。
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1为本申请一些实施例的干燥装置的结构示意图；
图2为本申请另一些实施例的干燥装置的结构示意图；
图3为本申请另一些实施例的干燥箱的结构示意图；
图4为本申请一些实施例的置物器的结构示意图；
图5为本申请一些实施例的置物器的部分结构示意图；
图6为本申请一些实施例的隔板的结构示意图；
图7为本申请一些实施例的隔板的简易截面示意图；
图8为本申请一些实施例的加热器的结构示意图。
附图标记说明：
10、干燥箱；20、连通阀门；30、连通管道；40、温度传感器；50、置物器；60、加
热器；70、输送管道；80、输出管道；90、第一阀门；110、第二阀门；120、电池单体；11、顶壁；12、底壁；13、侧壁；101、干燥腔体；102、连通接口；103、入口；104、出口；105、第一干燥箱；151、第一干燥腔体；106、第二干燥箱；161、第二干燥腔体；501、置物框；502、隔板；503、围板；511、置物腔体；512、子置物腔体；521、第一夹板；522、第二夹板。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
电池单体在制作的过程中难免会存在水分，水分会影响电池单体的安全性能，相关技术中，会使用干燥装置对电池单体进行干燥处理，将电池单体放置在干燥装置的干燥腔体中，干燥装置工作去除电池单体中不必要的水分。干燥装置中的干燥腔体是独立工作的，当其中一个干燥腔体对电池单体进行了干燥处理后，会将电池单体从干燥腔体中取出，在取出电池单体的过程中，干燥腔体会与外部环境连通，导致干燥腔体内部温度的温度降低，造成热量损失，使得干燥装置的能耗较高。本申请实施例提供了一种干燥装置，将两个干燥腔体连通，并设置连通阀门控制两个干燥腔体的连通与关闭，当其中一个干燥腔体对电池单体进行了干燥处理后，将连通阀门打开，使得热量传给另一个干燥腔体，另一个干燥腔体的温度升高，减少热量的损失，降低干燥装置的能耗。
本申请实施例提供了一种干燥装置，图1为本申请一些实施例的干燥装置的结构示意图。参见图1，干燥装置包括至少两个干燥箱10和连通阀门20。至少两个干燥箱10均具有干燥腔体101，至少两个干燥箱10的干燥腔体101相互连通；连通阀门20用于控制相互连通的两个干燥箱10的干燥腔体101的连通与关闭。
在本申请实施例中，该干燥装置可以用于对电池单体120进行干燥处理，电池单体120放置在干燥箱10的干燥腔体101中。
在图1所示的干燥装置中，干燥装置包括两个干燥箱10和一个连通阀门20，在其他实现方式中，干燥装置可以包括更多数量的干燥箱10和连通阀门20。例如干燥装置包括三个干燥箱10，三个干燥箱10包括三个干燥腔体101，在本申请实施例的一种实现方式中，第一个干燥腔体101与第二个干燥腔体101连通，第二个干燥腔体101还与第三个干燥腔体101连通，干燥装置包括两个连通阀门20，其中一个连通阀门20用于控制相第一个干燥腔体101和第二个干燥腔体101连通与关闭，另一个连通阀门20用于控制相第二个干燥腔体101和第三个干燥腔体101连通与关闭。在本申请实施例的另一种实现方式中，第一个干燥腔体101与第二个干燥腔体101连通，第二个干燥腔体101与第三个干燥腔体101连通，第一个干燥腔体101与第三个干燥腔体101连通，干燥装置包括三个连通阀门20，第一个连通阀门20用于控制相第一个干燥腔体101和第二个干燥腔体101连通与关闭，第二个连通阀门20用于控制相第二个干燥腔体101和第三个干燥腔体101连通与关闭，第三个连通阀门20用于控制相第一个干燥腔体101和第三个干燥腔体101连通与关闭。
在本申请实施例中，相互连通的两个干燥箱10通过一个连通阀门20进行控制，这样的结构更加简单。在其他实现方式中，相互连通的两个干燥箱10可以通过两个或者多个连通阀门20进行控制，其中一个连通阀门20损坏时，其他的连通阀门20仍然可以工作。
在本申请实施例中，当干燥箱10对电池单体120进行干燥时，连通阀门20是关闭的，也即在干燥箱10对电池单体120进行干燥工作时，干燥箱10是相互独立的，避免相互影响。
在本申请实施例中，干燥箱10具有门，这样便于打开干燥箱10取放电池单体120。
为了方便描述，在本申请以下的解释说明中，均以干燥装置包括两个干燥箱10和一个连通阀门20，其中两个干燥箱10包括第一干燥箱105和第二干燥箱106，第一干燥箱105的干燥腔体101为第一干燥腔体151，第二干燥箱106的干燥腔体101为第二干燥腔体161为例进行解释说明。
在本申请实施例中，在干燥装置的其中一个干燥箱10(第一干燥箱105)进行干燥工作时，连通阀门20控制两个干燥腔体101关闭，当第一干燥箱105完成干燥工作后，连通阀门20控制两个干燥腔体101连通，由于两个干燥腔体101的温度不同，热量 会向另一个干燥箱10(第二干燥箱106)传递，使得第二干燥箱106的第二干燥腔体161的温度升高，后续对第二干燥箱106进行加热时，消耗的能量较少，减少能耗。
根据本申请的一些实施例，参见图1，两个干燥箱10均具有连通接口102，干燥装置还包括连通管道30，连通管道30的两端分别与两个干燥箱10的连通接口102连接，连通阀门20位于连通管道30上。
在本申请实施例中，第一干燥箱105和第二干燥箱106是通过连通管道30连通的，在其他实现方式中，第一干燥箱105和第二干燥箱106可以共用一个侧壁，在该侧壁上开设连通接口102，然后将连通阀门20设置在连通接口102处。
在本申请实施例中，通过连通管道30将两个干燥箱10连通，这样连通阀门20可以设置在连通管道30上，便于布置连通阀门20。
根据本申请的一些实施例，参见图1，干燥箱10具有顶壁11、底壁12和侧壁13，顶壁11与底壁12相对，侧壁13连接顶壁11和底壁12，连通接口102位于侧壁13。
在本申请实施例中，连通接口102位于侧壁13，在其他实现方式中，连通接口102可以位于顶壁11或者底壁12。
在本申请实施例中，将连通接口102布置在干燥箱10的侧壁13上更加方便。
根据本申请的一些实施例，连通接口102位于侧壁13的与顶壁11相比更靠近底壁12的位置。
在本申请实施例中，连通接口102靠近底壁12。在其他实现方式中，连通接口102可以位于侧壁13的中部，或者连通接口102靠近顶壁11。
在本申请实施例中，热量在第一干燥腔体151和第二干燥腔体161之间传递时，一般是以气体为介质进行传递的，热气体一般是向上移动的，将连通接口102设置在靠近底壁12的位置，热气体会在干燥腔体101中从底部向顶部移动，从而使得整个干燥腔体101的温度均升高。
根据本申请的一些实施例，图2为本申请另一些实施例的干燥装置的结构示意图。参见图2，干燥装置还包括温度传感器40，温度传感器40位于干燥腔体101内，温度传感器40用于检测干燥腔体101的温度。
在本申请实施例中，温度传感器40在干燥腔体101中的位置不限，只要能检测干燥腔体101的温度即可。
在本申请实施例的一种实现方式中，一个干燥箱10中布置一个温度传感器40，这样的结构更加简单。
在本申请实施例的另一种实现方式中，一个干燥箱10中可以布置两个或者更多数量的温度传感器40，当其中一个温度传感器40损坏时，其他的温度传感器40仍然可以工作，避免影响整个干燥装置的运行。
当一个干燥箱10中布置两个或者更多数量的温度传感器40时，可以使用其中一个温度传感器40测到的温度值作为干燥腔体101的温度，也可以将多个温度传感器40测量到的温度的平均值作为干燥腔体101的温度。
在本申请实施例中，温度传感器40可以用于检测在干燥箱10工作时干燥腔体101的温度是否达到设定值，也可以用于检测在进行热量传递时，两个干燥腔体101的温度是否平衡，当两个干燥腔体101的温度平衡时，可以将连通阀门20关闭，然后干燥箱10再进行加热，避免热量回流增加能耗。
在本申请实施例中，当连通阀门20打开设定时间后两个干燥腔体101的温度还未平衡时，说明干燥装置可能存在故障，可以对干燥装置进行检修排除故障。
示例性地，设定时间可以为30分钟。
根据本申请的一些实施例，图3为本申请另一些实施例的干燥箱的结构示意图。参见图3，干燥装置还包括置物器50，置物器50可移动地位于干燥腔体101内。
在本申请实施例中，置物器50可以为置物架或者置物小车。
示例性地，置物小车的底部可以布置滚轮，便于将置物小车从干燥腔体101内取出。
在本申请实施例中，在干燥腔体101内布置置物器50，置物器50用于放置电池单体120，且置物器50可移动地位于干燥腔体101内，这样便于取出电池单体120。
在本申请实施例中，一个干燥腔体101内可以放置多个置物器50，这样可以在一个干燥腔体101中放置更多数量的电池单体120，提高工作效率。
根据本申请的一些实施例，图4为本申请一些实施例的置物器的结构示意图。参见图4，置物器50包括置物框501和隔板502，置物框501具有置物腔体511；隔板502位于置物腔体511内，隔板502将置物腔体511分隔成多个子置物腔体512。
在本申请实施例中，一个置物器50可以包括多个隔板502，这样隔板502可以将置物腔体511分隔成多个子置物腔体512，每一个子置物腔体512均可以用于放置电池单体120。
在本申请实施例中，相邻两个隔板502之间的距离需大于电池单体120的高度，保证电池单体120可以放在相邻两个隔板502之间。
在本申请实施例中，置物框501形成置物器50的整体外边框，隔板502将置物腔体511分隔成多个子置物腔体512，每一个子置物腔体512均可以用于放置电池单体120，使得在一个干燥工序中，干燥装置可以对更多数量的电池单体120进行干燥，提高工作效率。
在本申请实施例中，隔板502与置物框501的侧壁可滑动地连接，这样隔板502可滑动，这样在取放电池单体120时，可以将隔板502从置物框501的腔体中拉出，电池单体120取放完成后再将隔板502推入置物框501的腔体中，这样更加方便取放电池单体120。
图5为本申请一些实施例的置物器的部分结构示意图。参见图5，置物器50还包括围板503，围板503为环状，围板503围绕隔板502布置，电池单体120位于围板503和隔板502形成的空间中，这样围板503形成阻挡结构，避免电池单体120从隔板502上掉落。
根据本申请的一些实施例，图6为本申请一些实施例的隔板的结构示意图。图7为本申请一些实施例的隔板的简易截面示意图。结合图6和图7，隔板502包括相对的第一夹板521和第二夹板522，干燥装置还包括加热器60，加热器60位于第一夹板521和第二夹板522之间。
在本申请实施例中，加热器60用于加热，提高干燥腔体101中的温度。
在本申请实施例中，干燥箱10在进行干燥工作时，干燥腔体101中的温度大于100℃，便于将水分蒸发。
示例性地，干燥箱10在进行干燥工作时，干燥腔体101中的温度为105℃。
在本申请实施例中，布置加热器60进行加热，且加热器60布置在隔板502上，隔板502上放置电池单体120，这样加热器60距离电池单体120较近，电池单体120的温度提升更快，使得电池单体120中的水分更易蒸发。同时将加热器60布置在第一夹板521和第二夹板522之间，避免加热器60直接与电池单体120接触，对电池单体120造成影响。
在本申请实施例的一种实现方式中，温度传感器40可以布置在隔板502上，这样温度传感器40更易检测到电池单体120的温度。
图8为本申请一些实施例的加热器的结构示意图。参见图8，加热器60可以为加热丝。
根据本申请的一些实施例，再次参见图2，干燥箱10具有入口103和出口104，入口103和出口104均与干燥腔体101连通；入口103用于向干燥腔体101中输送气体；出口104用于输出干燥腔体101中的气体。
在本申请实施例中，向干燥腔体101中输送的气体可以为空气或者氮气。
在本申请实施例中，当干燥箱10进行干燥工作时，先将连通阀门20关闭，然后通过出口104将干燥腔体101中的气体抽出，使得干燥腔体101中的压强低于大气压(例如干燥腔体101为真空)，然后对干燥腔体101进行加热，待加热完成后，再通过入口103向干燥腔体101中输送气体，使得干燥腔体101中的压强大于或等于大气压。
示例性地，当干燥腔体101为真空状态时，干燥腔体101的压强小于或等于100帕斯卡(Pa)。
在本申请实施例中，在干燥装置工作时，由于干燥腔体101中的压强低于大气压，使得电池单体120中的水分更易从电池单体120中出来被蒸发掉。待干燥完成后，此时干燥腔体101处于真空状态，向干燥腔体101中输送气体，使得干燥腔体101中的压强大于或等于大气压这样便于打开干燥装置的门。
根据本申请的一些实施例，入口103和出口104均位于干燥箱10的侧壁13，且入口103和出口104均位于侧壁13的与底壁12相比更靠近顶壁11的位置。
在本申请实施例中，入口103和出口104布置在侧壁13上更加方便，同时入口103和出口104靠近顶壁11，避免入口103和出口104与连通接口102产生干扰。
根据本申请的一些实施例，再次参见图2，干燥装置还包括：输送管道70和输出管道80。输送管道70与入口103连通，输出管道80与出口104连通。
在本申请实施例中，布置输送管道70和输出管道80，分别与入口103和出口104连通，方便输出和输送气体。
根据本申请的一些实施例，再次参见图2，干燥装置还包括：第一阀门90和第二阀门110。第一阀门90位于输送管道70上；第二阀门110位于输出管道80上。
在本申请实施例中，可以通过第一阀门90控制入口103的连通与关闭；第二阀门110控制出口104的连通与关闭，更加方便。
根据本申请的一些实施例，连通阀门20为挡板阀。
在本申请实施例中，由于干燥腔体101中存在真空的情况，挡板阀相较于其他阀门来说更加适合真空环境，不易失效和损坏。
在本申请实施例中，连通阀门20、第一阀门90和第二阀门110均为电动阀门，可以通过计算机程序进行控制。
本申请的一些实施例提供了一种电池单体干燥系统，电池单体干燥系统包括上述实施例中的干燥装置。
本申请实施例提供的电池单体干燥系统，能耗较低。
本申请实施例提供了一种干燥装置，干燥装置包括两个干燥箱10、连通阀门20、连通管道30、温度传感器40、置物器50、加热器60、输送管道70、输出管道80、第一阀门90和第二阀门110。两个干燥箱10均具有干燥腔体101，两个干燥箱10的干燥腔体101相互连通。两个干燥箱10均具有连通接口102、入口103和出口104，连通接口102、入口103和出口104均位于干燥箱10的侧壁13，连通接口102靠近底壁12，入口103和出口104均靠近顶壁11。连通管道30的两端分别与两个干燥箱10的连通接口102连接，连通阀门20位于连通管道30上。温度传感器40位于干燥腔体101内。置物器50可移动地位于干燥腔体101内。输送管道70与入口103连通，输出管道80与出口104连通。第一阀门90位于输送管道70上；第二阀门110位于输出管道80上。连通阀门20为挡板阀。
置物器50包括置物框501、隔板502和围板503，置物框501具有置物腔体511；隔板502位于置物腔体511内，隔板502将置物腔体511分隔成多个子置物腔体512。围板503为环状，围板503围绕隔板502布置，电池单体120位于围板503和隔板502形成的空间中。隔板502包括相对的第一夹板521和第二夹板522，加热器60位于第一夹板521和第二夹板522之间。
下面以本申请实施例的干燥装置为例解释一下干燥装置的干燥过程。
步骤S901：关闭连通阀门20。
关闭连通阀门20，避免第一干燥箱105和第二干燥箱106相互干扰。
步骤S902：打开第一干燥箱105上的第二阀门110。
打开第一干燥箱105上的第二阀门110，第一干燥箱105上的出口104连通。
步骤S903：抽走第一干燥腔体151中的气体。
通过出口104抽走第一干燥腔体151中的气体，使得第一干燥腔体151呈真空状态。
步骤S904：控制第一干燥腔体151内加热器60进行加热。
待第一干燥腔体151呈真空状态，加热器60进行加热，使第一干燥腔体151内的温度升高，进行干燥工作。
步骤S905：打开第一阀门90。
第一干燥箱105的干燥工作完成后，打开第一阀门90，第一干燥箱105上的入口103连通。
步骤S906：向第一干燥腔体151中输入的气体。
通过入口103向第一干燥腔体151内输入气体，使得第一干燥腔体151的压强增大。
步骤S907：打开连通阀门20。
打开连通阀门20后，第一干燥腔体151中的热空气进入第二干燥腔体161中。
步骤S908：关闭连通阀门20。
待第一干燥腔体151和第二干燥腔体161中的温度平衡后，关闭连通阀门20。
此时可以将第一干燥腔体151中的电池单体120取出。
步骤S909：打开第二干燥箱106上的第二阀门110。
打开第二干燥箱106上的第二阀门110，第二干燥箱106上的出口104连通。
步骤S910：抽走第二干燥腔体161中的气体。
通过出口104抽走第二干燥腔体161中的气体，使得第二干燥腔体161呈真空状态。
步骤S911：控制第二干燥箱106内加热器60进行加热。
待第二干燥腔体161呈真空状态，加热器60进行加热，使第二干燥腔体161内的温度升高，进行干燥工作。
步骤S912：打开第二干燥箱106上的第一阀门90。
第二干燥箱106的干燥工作完成后，打开第一阀门90，第二干燥箱106上的入口103连通。
步骤S913：向第二干燥腔体161中输入的气体。
通过入口103向第二干燥腔体161内输入气体，使得第二干燥腔体161的压强增大。
此时可以打开连通阀门20，使得第二干燥腔体161内的热气体进入到第一干燥腔体151中，再次实现能量的循环利用。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (14)

  1. 一种干燥装置，所述干燥装置包括：
    至少两个干燥箱(10)，所述至少两个干燥箱(10)均具有干燥腔体(101)，所述至少两个干燥箱(10)的干燥腔体(101)相互连通；
    连通阀门(20)，用于控制相互连通的两个干燥箱(10)的干燥腔体(101)的连通与关闭。
  2. 根据权利要求1所述的干燥装置，其中，所述两个干燥箱(10)均具有连通接口(102)，所述干燥装置还包括：
    连通管道(30)，所述连通管道(30)的两端分别与所述两个干燥箱(10)的连通接口(102)连接，所述连通阀门(20)位于所述连通管道(30)上。
  3. 根据权利要求2所述的干燥装置，其中，所述干燥箱(10)具有顶壁(11)、底壁(12)和侧壁(13)，所述顶壁(11)与所述底壁(12)相对，所述侧壁(13)连接所述顶壁(11)和所述底壁(12)；
    所述连通接口(102)位于所述侧壁(13)。
  4. 根据权利要求3所述的干燥装置，其中，所述连通接口(102)位于所述侧壁(13)的与所述顶壁(11)相比更靠近所述底壁(12)的位置。
  5. 根据权利要求1至4中任一项所述的干燥装置，其中，所述干燥装置还包括：
    温度传感器(40)，位于所述干燥腔体(101)内，所述温度传感器(40)用于检测所述干燥腔体(101)的温度。
  6. 根据权利要求1至5中任一项所述的干燥装置，其中，所述干燥装置还包括：
    置物器(50)，可移动地位于所述干燥腔体(101)内。
  7. 根据权利要求6所述的干燥装置，其中，所述置物器(50)包括：
    置物框(501)，具有置物腔体(511)；
    隔板(502)，位于所述置物腔体(511)内，所述隔板(502)将所述置物腔体(511)分隔成多个子置物腔体(512)。
  8. 根据权利要求7所述的干燥装置，其中，所述隔板(502)包括相对的第一夹板(521)和第二夹板(522)，所述干燥装置还包括：
    加热器(60)，位于所述第一夹板(521)和所述第二夹板(522)之间。
  9. 根据权利要求1至8中任一项所述的干燥装置，其中，所述干燥箱(10)具有入口(103)和出口(104)，所述入口(103)和所述出口(104)均与所述干燥腔体(101)连通；
    所述入口(103)用于向所述干燥腔体(101)中输送气体；
    所述出口(104)用于输出所述干燥腔体(101)中的气体。
  10. 根据权利要求9所述的干燥装置，其中，所述入口(103)和所述出口(104)均位于所述干燥箱(10)的侧壁(13)，且所述入口(103)和所述出口(104)均位于所述侧壁(13)的与底壁(12)相比更靠近顶壁(11)的位置。
  11. 根据权利要求9或10所述的干燥装置，其中，所述干燥装置还包括：
    输送管道(70)，与所述入口(103)连通；
    输出管道(80)，与所述出口(104)连通。
  12. 根据权利要求11所述的干燥装置，其中，所述干燥装置还包括：
    第一阀门(90)，位于所述输送管道(70)上；
    第二阀门(110)，位于所述输出管道(80)上。
  13. 根据权利要求1至12中任一项所述的干燥装置，其中，所述连通阀门(20)为挡板阀。
  14. 一种电池单体干燥系统，所述电池单体干燥系统包括如权利要求1至13中任一项所述的干燥装置。
PCT/CN2023/112948 2022-08-19 2023-08-14 干燥装置和电池单体干燥系统 WO2024037505A1 (zh)

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