Battery charging and discharging device

Abstract

The application relates to the field of battery production and discloses a battery charging and discharging device. The battery charging and discharging device comprises a frame assembly, an accommodating space is arranged in the frame assembly, a supporting assembly is arranged in the accommodating space and is used for supporting a battery assembly, a charging assembly is arranged above the supporting assembly, a first airflow driving device is arranged at one end of the charging assembly close to the supporting assembly, and the air inlet side of the charging assembly faces the supporting assembly, a heat exchange device is arranged in the accommodating space and is located at one side of the supporting assembly, the heat exchange device is used for heat exchange between airflow and refrigerant, a second airflow driving device is arranged above the heat exchange device, and the air outlet side of the second airflow driving device faces the heat exchange device, and a third airflow driving device is arranged at one side of the heat exchange device away from the second airflow driving device, and the air outlet side of the third airflow driving device faces the supporting assembly. The heat exchange device can guide heat in the accommodating space out through refrigerant, and the heat exchange device can maintain high efficiency in different working environments and is not easily affected by external temperature changes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production, in particular to a battery charging and discharging device. BACKGROUND

[0002] In modern battery manufacturing industry, charging and discharging treatment for newly produced or repaired batteries is an indispensable step. This process not only serves to activate the batteries and make them reach the best performance state, but also is a key link for detecting the health status of the batteries and ensuring their compliance with quality standards. In order to achieve these purposes, a specially designed battery charging and discharging device is usually used.

[0003] However, since a large amount of heat energy is generated during the charging and discharging of the batteries, if these heat cannot be effectively dissipated, they will accumulate inside the shell of the battery charging and discharging device, resulting in temperature rise. High temperature environment not only may affect the performance and life of the batteries themselves, but also may affect the accuracy of test results, and even pose a threat to the safety of the equipment.

[0004] Traditional solutions, such as forced exhaust and air supply cooling using fans, although can alleviate the problem of temperature rise to a certain extent, but the effect of this method is greatly limited by the surrounding environment temperature, and it is difficult to guarantee the stability and consistency of the temperature inside the shell. SUMMARY

[0005] Therefore, the present application provides a battery charging and discharging device to solve or improve the problem that the cooling method of the battery charging and discharging device in the prior art is easily limited by the surrounding environment temperature.

[0006] The present application provides a battery charging and discharging device, comprising:

[0007] a frame assembly, internally provided with a containing space for accommodating a battery assembly;

[0008] a support assembly, provided in the containing space and used for supporting the battery assembly;

[0009] a charging assembly, provided above the support assembly, wherein one end of the charging assembly close to the support assembly is provided with a first air flow driving device, and the air inlet side of the first air flow driving device faces the support assembly;

[0010] a heat exchange device, provided in the containing space and located at one side of the support assembly, wherein the heat exchange device is used for heat exchange between air flow and refrigerant;

[0011] a second air flow driving device, provided above the heat exchange device, and the air outlet side of the second air flow driving device faces the heat exchange device;

[0012] A third air flow driving device is arranged on the side of the heat exchange device away from the second air flow driving device, and the air outlet side of the third air flow driving device faces the support assembly.

[0013] The battery charging and discharging device provided by the application can realize effective cooling without increasing energy consumption by using the natural rising hot air flow in combination with the first air flow driving device. The first air flow driving device can suck the air flow at the position of the battery assembly, which can fully utilize the cold provided by the heat exchange device to improve the cold utilization rate and can also accelerate the air flow speed at the position of the battery assembly to accelerate the cooling rate of the battery assembly. The second air flow driving device can guide the hot air accumulated at the top of the containing space to the heat exchange device for cooling, which can avoid the overall temperature in the containing space being too high to affect the battery assembly or other electrical elements. The heat exchange device arranged in the containing space can guide the heat in the containing space out through the circulation of the refrigerant. The heat exchange device can maintain high efficiency in different working environments and is not easily affected by the change of external temperature. Compared with the forced ventilation form of the fan, the heat exchange device can guide the heat in the containing space out without bringing dust into the containing space, which can avoid the influence of dust on the electrical elements. The third air flow driving device can guide the air cooled by the heat exchange device to the battery assembly again, so that the air flow in the containing space forms a closed loop system, thereby improving the cold utilization rate and reducing the heat exchange with the external environment, so that the equipment is not affected by the temperature fluctuation of the external environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0015] Figure 1 The front view of the battery charging and discharging device provided by the embodiment of the application is shown in the figure.

[0016] Figure 2 The air flow circulation path in the battery charging and discharging device provided by the embodiment of the application is shown in the figure.

[0017] Figure 3 The internal structure of the battery charging and discharging device provided by the embodiment of the application is shown in the figure.

[0018] Figure 4 The other angle view of the figure is shown in the figure. Figure 3 The other angle view of the figure is shown in the figure.

[0019] Figure 5 The other angle view of the figure is shown in the figure.Figure 4 Other angle schematic view of the shown view;

[0020] Figure 6 Structural schematic view of the restraint device provided by the embodiment of the present application and the positioning assembly jointly extruding the battery assembly;

[0021] Figure 7 Structural schematic view of the support assembly provided by the embodiment of the present application and the frame assembly;

[0022] Figure 8 Structural schematic view of the lifting driving device provided by the embodiment of the present application;

[0023] Figure 9 Structural schematic view of the battery assembly provided by the embodiment of the present application and the support assembly;

[0024] Figure 10 Structural schematic view of the charging assembly provided by the embodiment of the present application;

[0025] Figure 11 Structural schematic view of the restraint device provided by the embodiment of the present application;

[0026] Figure 12 Structural schematic view of the battery probe positioning mechanism provided by the embodiment of the present application and the battery assembly;

[0027] Figure 13 Structural schematic view of the battery probe positioning mechanism provided by the embodiment of the present application; Figure 12

[0028] Structural schematic view of the battery probe positioning mechanism provided by the embodiment of the present application; Figure 14

[0029] Structural schematic view of the positioning unit provided by the embodiment of the present application. Figure 15 Explanation of reference signs:

[0030]

[0031] ​1, fixed seat; 101, bottom plate; 102, vertical plate; 103, lifting plate; 104, through hole; 105, waist hole; 106, locking bolt; 107, positioning bolt; 2, positioning unit; 201, sliding seat; 202, probe assembly; 2021, mounting seat; 2022, probe; 203, driving assembly; 2031, fixed part; 2032, driving part; 204, guide assembly; 2041, positioning groove; 2042, guide block; 2043, guide wheel; 3, reset driving device; 4, positioning structure; 5, battery assembly; 501, positioning protrusion; 502, battery; 503, tray; 6, frame assembly; 601, support frame; 6011, support plate; 602, coaming; 7, support assembly; 701, lifting seat; 702, support seat; 8, charging assembly; 801, first airflow driving device; 9, heat exchange device; 10, second airflow driving device; 11, third airflow driving device; 12, connecting rod; 13, guide plate; 14, restraint device; 1401, lead screw; 1402, gear; 1403, motor; 1405, driving block; 1406, compression block; 1407, compression rod; 1408, pressure sensor; 15, positioning assembly; 1501, positioning plate; 1502, positioning driving mechanism; 16, lifting driving device; 1601, flexible member; 1602, transmission wheel; 1603, reciprocating driving mechanism; 17, locking assembly; 1701, locking block; 1702, locking driving mechanism; 18, fire-fighting pipeline; 19, fire-fighting nozzle; 20, containing box; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] The embodiments of the present application are described below with reference to the drawings. Figures 1 to 15 The battery charging and discharging device provided in the embodiments of the present application is described.

[0034] Specifically, the battery charging and discharging device comprises a frame assembly 6, a support assembly 7, a charging assembly 8, a heat exchange device 9, a second airflow driving device 10, and a third airflow driving device 11.

[0035] The frame assembly 6 has an accommodating space inside for accommodating the battery assembly 5. Optionally, the frame assembly 6 comprises a support frame 601 and a surrounding plate 602. For example, the support frame 601 comprises a skeleton structure which can be formed by a profile. The surrounding plate 602 is connected to the skeleton structure and cooperates with the skeleton structure to form the accommodating space. Further, at least part of the surrounding plate 602 is rotatably connected to the skeleton structure so as to be rotatable to open or close the accommodating space, thereby facilitating installation or maintenance of components in the accommodating space.

[0036] The support assembly 7 is arranged in the accommodating space and is used for supporting the battery assembly 5. Optionally, the support assembly 7 is connected to the support frame 601 of the frame assembly 6. For example, the support frame 601 further comprises a support plate 6011 connected to the skeleton structure, and the support assembly 7 is connected to the support plate 6011.

[0037] The charging assembly 8 is arranged above the support assembly 7 and has a spacing between the support assembly 7 and the charging assembly 8 for accommodating the battery assembly 5. The charging assembly 8 can be used to charge the battery assembly 5. The charging assembly 8 is provided with a first airflow driving device 801 at one end close to the support assembly 7, and the air inlet side of the first airflow driving device 801 faces the support assembly 7. That is, the airflow driving direction of the first airflow driving device 801 is arranged from the support assembly 7 to the charging assembly 8. Optionally, the first airflow driving device 801 can be a fan.

[0038] The heat exchange device 9 is arranged in the accommodating space, and the heat exchange device 9 is located at one side of the support assembly 7. The heat exchange device 9 is used for heat exchange between airflow and refrigerant to cool the airflow. Optionally, the heat exchange device 9 is arranged as a gas-liquid heat exchanger or a gas-gas heat exchanger. The refrigerant includes but is not limited to water. Optionally, the heat exchange device 9 can be connected to the frame assembly 6.

[0039] The second airflow driving device 10 is arranged above the heat exchange device 9, and the air outlet side of the second airflow driving device 10 faces the heat exchange device 9. The second airflow driving device 10 is used to drive the airflow to flow through the heat exchange device 9 so that the heat exchange device 9 absorbs the heat of the airflow. Optionally, the second airflow driving device 10 can be a fan.

[0040] The third airflow driving device 11 is arranged at the side of the heat exchange device 9 away from the second airflow driving device 10, and the air outlet side of the third airflow driving device 11 faces the support assembly 7, so that the third airflow driving device 11 drives the airflow discharged by the heat exchange device 9 to the position of the support assembly 7, thereby cooling the battery assembly 5 on the support assembly 7. Optionally, the third airflow driving device 11 can be a fan.

[0041] Reference Figure 2The arrow in the figure represents the direction of the air flow, in this embodiment, after the battery assembly 5 on the support assembly 7 generates heat, the air flow naturally rises, and under the suction of the first air flow driving device 801, the air flow flows through the charging assembly 8 and cools the charging assembly 8, at this time, the hot air accumulates at the top of the containing space. Under the action of the second air flow driving device 10, the air at the top of the containing space flows through the heat exchange device 9 and exchanges heat with the heat exchange device 9. The low-temperature air discharged from the heat exchange device 9 is blown to the battery assembly 5 on the support assembly 7 under the driving of the third air flow driving device 11, thereby cooling the battery assembly 5, thus forming an air flow circulation.

[0042] In this way, the air circulation is realized by combining the naturally rising hot air flow with the first air flow driving device 801, which can effectively cool without increasing energy consumption. The first air flow driving device 801 sucks the air flow at the position of the battery assembly 5, which can further cool the charging assembly, thereby fully utilizing the cold provided by the heat exchange device 9 and improving the cold utilization rate. On the other hand, it can speed up the flow speed of the air flow at the position of the battery assembly 5 and speed up the cooling rate of the battery assembly 5.

[0043] The hot air accumulated at the top of the containing space can be guided to the heat exchange device 9 by the second air flow driving device 10 for cooling, which can avoid the overall temperature in the containing space being too high to affect the battery assembly 5 or other electrical elements.

[0044] The heat exchange device 9 arranged in the containing space can guide the heat in the containing space out through the flow of refrigerant. The heat exchange device 9 can maintain high efficiency in different working environments and is not easily affected by changes in external temperature. Compared with the forced ventilation form of the fan, the heat in the containing space is guided out by the heat exchange device 9, which does not bring dust into the containing space, avoiding the influence of dust on electrical elements.

[0045] The third air flow driving device 11 can guide the air cooled by the heat exchange device 9 to the battery assembly 5, so that the air flow in the containing space forms a closed loop system, thereby improving the cold utilization rate and reducing the heat exchange with the external environment, so that the device is not affected by the temperature fluctuations of the external environment.

[0046] Reference Figure 2 As shown in the figure, in some embodiments provided by the application, the number of support assemblies 7 is at least two. For example, the number of support assemblies 7 will be introduced as two in the following. Each support assembly 7 is provided with a corresponding charging assembly 8, a second air flow driving device 10 and a third air flow driving device 11.

[0047] The heat exchange device 9 is arranged between the two adjacent support assemblies 7. The second air flow driving devices 10 of the two adjacent support assemblies 7 are arranged above the heat exchange device 9, and the air outlet sides of the second air flow driving devices 10 are both directed towards the heat exchange device 9.

[0048] The third air flow driving devices 11 of the two adjacent support assemblies 7 are arranged below the heat exchange device 9, and the third air flow driving devices 11 are respectively directed towards the corresponding support assemblies 7.

[0049] In the embodiment, at least two support assemblies 7 are arranged, and each support assembly 7 is provided with a corresponding charging assembly 8, so that the battery charging and discharging device can simultaneously charge and discharge at least two battery assemblies 5, thereby improving the working efficiency of the battery charging and discharging device.

[0050] In addition, the second air flow driving devices 10 of the two adjacent support assemblies 7 are arranged above the heat exchange device 9, and the third air flow driving devices 11 of the two adjacent support assemblies 7 are arranged below the heat exchange device 9, so that the battery assemblies 5 of the two adjacent support assemblies 7 can use the heat exchange device 9, thereby reducing the number of parts and costs, and making the overall battery charging and discharging device more compact and maximizing the use of available space.

[0051] Referring to Figure 2 and Figure 3 In some embodiments of the present application, the second air flow driving devices 10 of the two adjacent support assemblies 7 are mounted on the heat exchange device 9, and the second air flow driving devices 10 of the two adjacent support assemblies 7 are connected. For example, along the driving air flow direction of the third air flow driving device 11 (i.e. the left-right direction in Figure 2 , one side of the second air flow driving device 10 is connected to the heat exchange device 9, and the other side is connected to the other second air flow driving device 10.

[0052] In the embodiment, by mounting the two second air flow driving devices 10 on the heat exchange device 9, the compactness between the second air flow driving devices 10 and the heat exchange device 9 is higher, which is convenient for saving space in the accommodation space.

[0053] By connecting the two second air flow driving devices 10, the connection strength and rigidity of the second air flow driving devices 10 and the heat exchange device 9 can be improved, thereby improving the stability of the installation of the two second air flow driving devices 10 on the heat exchange device 9.

[0054] Referring to Figure 2 and Figure 3 In some embodiments of the present application, the battery charging and discharging device further comprises a connecting rod 12.

[0055] The third airflow drive devices 11 of two adjacent support assemblies 7 are spaced apart and installed on the frame assembly 6, for example, the air outlet of the heat exchange device 9 faces the gap between the two third airflow drive devices 11. The connecting rod 12 connects between the third airflow drive devices 11 of two adjacent support assemblies 7.

[0056] In this embodiment, two third airflow drive devices 11 are connected by a connecting rod 12, which improves the connection strength and rigidity between the third airflow drive device 11 and the frame assembly 6, thereby improving the stability of the installation of the two third airflow drive devices 11.

[0057] refer to Figure 2 and Figure 3 As shown, in some embodiments provided by the present invention, along the airflow driving direction of the third airflow driving device 11, the side of the second airflow driving device 10 closest to the support assembly 7 is connected to the heat exchange device 9, and the side of the second airflow driving device 10 furthest from the support assembly 7 is inclined in a direction away from the heat exchange device 9. It can be understood that the airflow driving direction of the third airflow driving device 11 is... Figure 2 The left and right directions in the middle.

[0058] like Figure 2 In the figure, after the first airflow driving device 801 discharges airflow, the airflow comes into contact with the top arm of the accommodating space and runs in the left and right direction. If the second airflow driving device 10 is set completely horizontally, the airflow running direction at the top of the accommodating space is perpendicular to the airflow driving direction of the second airflow driving device 10, resulting in a poor airflow driving effect of the second airflow driving device 10.

[0059] In this embodiment, by connecting the side of the second airflow driving device 10 close to the support component 7 to the heat exchange device 9, and tilting the side of the second airflow driving device 10 away from the support component 7 in a direction away from the heat exchange device 9, the air inlet of the second airflow driving device 10 is closer to the flow direction parallel to the top airflow, that is, the airflow does not need to change direction significantly to enter the second airflow driving device 10, thereby reducing the resistance when the airflow enters and improving the airflow driving effect.

[0060] refer to Figure 2 and Figure 3 As shown, in some embodiments provided by the present invention, the battery charging and discharging device further includes a flow guide plate 13.

[0061] The guide plate 13 is located on the air inlet side of the second airflow drive device 10 and along the airflow drive direction of the third airflow drive device 11. One end of the guide plate 13 is located on the side of the second airflow drive device 10 away from the support component 7, and the other end of the guide plate 13 is inclined toward the side where the support component 7 is located and connected to the inner wall of the accommodating space.

[0062] In this embodiment, by setting a guide plate 13, with one end of the guide plate 13 located at the second airflow driving device 10 and the other end inclined toward the support component 7 and connected to the inner wall of the accommodating space, the heat at the top of the accommodating space can be prevented from leaking through the second airflow driving device 10 and the inner wall of the accommodating space through the blocking effect of the guide plate 13, ensuring that most of the heat can be driven to the heat exchange device 9 by the second airflow driving device 10, thereby improving the cooling effect.

[0063] On the other hand, through the guiding effect of the guide plate 13, the airflow at the top of the accommodating space can enter the second airflow drive device 10 after contacting the guide plate 13 during its operation. This directional guidance can significantly improve the airflow capture efficiency and ensure that more hot air can be processed in a timely manner.

[0064] refer to Figure 4 as well as Figures 12-15 As shown, in some embodiments provided by the present invention, the battery charging and discharging device further includes a battery probe positioning mechanism.

[0065] A battery probe positioning mechanism is located on one side of the support assembly 7 and is used to dock with the battery assembly 5. For example, the battery probe positioning mechanism is used to electrically connect with the charging assembly 8 to charge the battery assembly 5, or the battery probe positioning mechanism is used to electrically connect with a load to discharge the battery assembly 5. A third airflow drive device 11 is located on the side of the battery probe positioning mechanism opposite to the support assembly 7.

[0066] In this embodiment, a battery probe positioning mechanism is provided for docking with the battery assembly 5, thereby enabling the battery assembly 5 to be charged and discharged through the battery probe positioning mechanism.

[0067] refer to Figures 3-6 As shown, in some embodiments of the present invention, corresponding battery probe positioning mechanisms are provided on both sides of the support component 7 along the second direction Y. This allows the two battery probe positioning mechanisms to abut against the terminals at both ends of the battery 502, so that the charging and discharging device can be used with the battery 502 where the positive and negative terminals are distributed at both ends of the battery 502.

[0068] Further, refer to Figure 4 As shown, the battery charging and discharging device also includes a restraint device 14 and a positioning component 15.

[0069] Along the first direction X, the restraint device 14 and the positioning component 15 are distributed on both sides of the support component 7. The positioning component 15 is vertically adjustable along the third direction Z, and the restraint device 14 is telescopically adjustable along the first direction X and is used to compress the battery component 5 in the direction of the positioning component 15. The first direction X, the second direction Y, and the third direction Z intersect each other, for example, each pair is perpendicular to the other.

[0070] In the embodiment, after the battery assembly 5 is placed on the support assembly 7, the restraint device 14 can be elongated and press the battery assembly 5 to the direction where the positioning assembly 15 is located, so that the battery assembly 5 is restrained by the restraint device 14 and the positioning assembly 15, and the problem of bulging of the battery assembly 5 is prevented.

[0071] Since the top of the support assembly 7 is provided with the charging assembly 8 and the two sides are provided with the battery probe positioning mechanism, the positioning assembly 15 is arranged to be liftable, so that the positioning assembly 15 can avoid the battery assembly 5, and the battery assembly 5 is convenient to take and place.

[0072] For example, before the battery assembly 5 is placed, the positioning assembly 15 is lifted first, then the battery assembly 5 is placed on the support assembly 7, and then the positioning assembly 15 is lowered, so that the positioning assembly 15 can cooperate with the restraint device 14 to restrain the battery assembly 5. After the charging and discharging are completed, the positioning assembly 15 is lifted again, so that the battery assembly 5 is taken out through the position where the positioning assembly 15 is located.

[0073] In some embodiments provided by the application, the positioning assembly 15 comprises a positioning block and a positioning driving mechanism 1502.

[0074] The support plate 6011 is provided with a guide rail extending in the vertical direction, and the positioning block is in sliding cooperation with the guide rail. The positioning block and the restraint device 14 can jointly restrain the battery assembly 5.

[0075] The positioning driving mechanism 1502 is connected with the positioning block and is used to drive the positioning block to slide. For example, the fixed end of the positioning driving mechanism 1502 is connected with the guide rail, and the driving end of the positioning driving mechanism 1502 is connected with the positioning block. For example, the positioning driving mechanism 1502 is arranged above the positioning block.

[0076] In the embodiment, the positioning block is driven to lift by the positioning driving mechanism 1502, so that the positioning block can avoid the battery assembly 5 and cooperate with the restraint device 14 to restrain the battery assembly 5.

[0077] Optionally, the positioning driving mechanism 1502 is arranged as a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0078] In some embodiments provided by the application, the restraint device 14 comprises a support, a lead screw 1401, a gear 1402, a motor 1403, a driving block 1405, a pressing block 1406, a pressing rod 1407 and a pressure sensor 1408.

[0079] The support can be mounted on the support plate 6011. The lead screw 1401 is rotationally connected to the support, and the gear 1402 is sleeved on the lead screw 1401. The motor 1403 is mounted on the support and is in transmission connection with the gear 1402.

[0080] The driving block 1405 and the pressing block 1406 are slidably mounted on the support in the first direction X. The driving block 1405 is arranged on the side of the pressing block 1406 away from the support assembly 7, and the driving block 1405 is in threaded transmission cooperation with the lead screw 1401. The pressure sensor 1408 is arranged between the driving block 1405 and the pressing block 1406 and is connected to the driving block 1405 and the pressing block 1406, respectively.

[0081] The number of the pressing rods 1407 is multiple. One end of the pressing rod 1407 is connected to the pressing block 1406, and the other end extends in the direction of the support assembly 7. The pressing rod 1407 is used to abut against the battery assembly 5 and abut against the battery assembly 5.

[0082] In the embodiment, the motor 1403 drives the lead screw 1401 to rotate through the gear 1402. The lead screw 1401 drives the driving block 1405 to slide. The driving block 1405 drives the pressing block 1406 to slide through the pressure sensor 1408. The pressing block 1406 presses the battery assembly 5 through the pressing rod 1407.

[0083] The pressure sensor 1408 is arranged between the driving block 1405 and the pressing block 1406, so that the size of the force exerted by the restraint device 14 on the battery assembly 5 can be accurately obtained.

[0084] Alternatively, the number of the lead screws 1401 is two. The screw rotation directions of the two lead screws 1401 are opposite. The two lead screws 1401 are each provided with a corresponding gear 1402. The gears 1402 on the two lead screws 1401 are the same and are in meshing connection with each other. The two lead screws 1401 are in threaded transmission cooperation with the driving block 1405. In the embodiment, the driving block 1405 can run more stably through the driving of the two lead screws 1401 at the same time.

[0085] In some embodiments provided by the application, the battery charging and discharging device comprises a temperature detection device and a control system.

[0086] The temperature detection device is used to detect at least one of the ambient temperature in the accommodation space and the working temperature of the battery assembly 5. The temperature detection device, the first airflow driving device 801, the second airflow driving device 10, and the third airflow driving device 11 are electrically connected to the control system.

[0087] The control system controls the power of at least one of the first airflow driving device 801, the second airflow driving device 10 and the third airflow driving device 11 based on at least one of the ambient temperature and the working temperature.

[0088] In the embodiment, the temperature detection device can detect the ambient temperature in the accommodation space and the working temperature of the battery assembly 5, and the power of at least one of the first airflow driving device 801, the second airflow driving device 10 and the third airflow driving device 11 is controlled and adjusted according to the ambient temperature and the working temperature, so that the ambient temperature and the working temperature are kept within a constant range, so that the electrical components in the accommodation space and the battery assembly 5 can be in an adaptive working environment, and the stability is improved.

[0089] Optionally, the temperature detection device includes a first temperature sensor for detecting the ambient temperature and a second temperature sensor for detecting the working temperature of the battery assembly 5. The first temperature sensor and the second temperature sensor are electrically connected to the control system.

[0090] In some embodiments provided by the application, the battery charging and discharging device further comprises a fire-fighting pipeline 18 and a fire-fighting nozzle 19. The fire-fighting nozzle 19 is connected to the fire-fighting pipeline 18, and the fire-fighting nozzle 19 is arranged on one side of the support assembly 7, and the spray port of the fire-fighting nozzle 19 faces the direction in which the support assembly 7 is located.

[0091] In the embodiment, by arranging the fire-fighting pipeline 18 and the fire-fighting nozzle 19, when the battery assembly 5 generates thermal runaway, the fire-fighting liquid can be transported through the fire-fighting pipeline 18, and the fire-fighting liquid can be sprayed to the battery assembly 5 through the fire-fighting nozzle 19, so as to suppress the thermal runaway or suppress the smoke diffusion.

[0092] Optionally, the fire-fighting liquid can be water or fire-fighting foam.

[0093] Optionally, the fire-fighting pipeline 18 is electrically connected to the control system, and the control system controls the fire-fighting pipeline 18 to be opened based on at least one of the ambient temperature and the working temperature of the battery assembly 5. For example, when the working temperature or the ambient temperature is too high, it indicates that the battery assembly 5 may generate thermal runaway problem, and the control system can control the fire-fighting pipeline 18 to be opened to suppress the spread of thermal runaway.

[0094] Further, the battery charging and discharging device further comprises a smoke detection device, which can be arranged above the support assembly 7 and is used for detecting smoke information in the accommodation space. The smoke detection device is electrically connected to the control system, and the control system determines to control the fire-fighting pipeline 18 to be opened based on the smoke information when the smoke is generated.

[0095] In some embodiments of the present application, the support assembly 7 is mounted on the frame assembly 6 in a liftable manner, and is slidably connected to the support plate 6011 of the frame assembly 6 in a vertical direction. The support plate 6011 is provided with a through hole 104 for the support assembly 7 to pass through. The upper end portion of the support assembly 7 can pass through the through hole 104 to support the battery assembly 5.

[0096] Further, the battery charging and discharging device further comprises a containing box 20 and a lifting driving device 16.

[0097] The containing box 20 is arranged below the support assembly 7, and the top of the containing box 20 is provided with an opening through which the support assembly 7 can pass. The containing box 20 can accommodate the support assembly 7, and can be used to store fire-fighting liquid. The fire-fighting liquid includes but is not limited to water.

[0098] The lifting driving device 16 is connected to the support assembly 7 and is used to drive the support assembly 7 to lift or lower, so as to enter or exit the containing box 20.

[0099] In this embodiment, when the battery assembly 5 generates thermal runaway, the lifting driving device 16 can drive the support assembly 7 to lower into the containing box 20, so that the battery assembly 5 on the support assembly 7 is lowered into the containing box 20 at the same time, so that the battery assembly 5 is soaked in the fire-fighting liquid in the containing box 20, thereby rapidly cooling the battery assembly 5, inhibiting combustion and explosion, and preventing the spread of fire.

[0100] Optionally, the lifting driving device 16 is electrically connected to a control system. The control system controls the lifting driving device 16 to drive the support assembly 7 to lower based on at least one of the ambient temperature in the containing space, the working temperature of the battery assembly 5, and smoke information. For example, when the ambient temperature or the working temperature is too high, or smoke is generated in the containing space, the control system controls the lifting driving device 16 to drive the support assembly 7 to lower.

[0101] Optionally, the lifting driving device 16 can cooperate with the fire-fighting pipeline 18. For example, when the ambient temperature or the working temperature is too high, or smoke is generated in the containing space, the control system controls the fire-fighting pipeline 18 to open, so that the fire-fighting nozzle 19 sprays the fire-fighting liquid to the battery assembly 5 to cool and inhibit smoke, and at the same time, the control system controls the lifting driving device 16 to drive the support assembly 7 to lower, so that the battery assembly 5 is soaked in the fire-fighting liquid in the containing box 20.

[0102] In this way, the temperature rise of the battery assembly 5 can be inhibited by the cooperation of soaking and spraying. At the same time, since the lowering of the support assembly 7 requires a certain time, and the opening time of the fire-fighting pipeline 18 is relatively short, the fire-fighting nozzle 19 can always spray the fire-fighting liquid during the lowering of the support assembly 7, thereby avoiding the problem of violent combustion of the battery assembly 5 during the lowering of the support assembly 7.

[0103] Reference Figure 8 As shown in the drawings, in some embodiments provided by the application, the lifting driving device 16 comprises a flexible member 1601, a transmission wheel 1602 and a reciprocating driving mechanism 1603.

[0104] The reciprocating driving mechanism 1603 comprises a fixed end and a driving end. The fixed end is connected with the frame assembly 6, and the driving end is provided with a rotatable transmission wheel 1602. The frame assembly 6 is also provided with a rotatable transmission wheel 1602.

[0105] One end of the flexible member 1601 is connected with the frame assembly 6, and the other end sequentially passes through the transmission wheel 1602 on the driving end and the transmission wheel 1602 on the frame assembly 6, and is connected with the support assembly 7.

[0106] In this embodiment, in the process of elongation of the reciprocating driving mechanism 1603, the support assembly 7 descends under the action of gravity. In the process of shortening of the reciprocating driving mechanism 1603, the reciprocating driving mechanism 1603 tightens the flexible member 1601 through the transmission wheel 1602, the flexible member 1601 pulls the support assembly 7, and the support assembly 7 rises.

[0107] In this way, the reciprocating driving mechanism 1603 can drive the support assembly 7 to enter and exit the containing box 20 through the flexible member 1601, without being arranged in the containing box 20, thereby avoiding the problem of reduction of the capacity of the containing box 20 due to the occupation of space by the reciprocating driving mechanism 1603.

[0108] In addition, placing the reciprocating driving mechanism 1603 outside the containing box 20 can facilitate installation, maintenance and repair work, reduce maintenance difficulty and cost, and avoid damage to the reciprocating driving mechanism 1603 caused by the liquid in the containing box 20.

[0109] In addition, the reciprocating driving mechanism 1603 can be arranged below the support plate 6011, thereby avoiding occupation of space above the support plate 6011 by the reciprocating driving mechanism 1603, and fully utilizing the installation space below the support plate 6011.

[0110] Optionally, the reciprocating driving mechanism 1603 is arranged below the support plate 6011, the fixed end of the reciprocating driving mechanism 1603 is connected with the frame assembly 6, and the driving end of the reciprocating driving mechanism 1603 is provided with a rotatable transmission wheel 1602. The surface of the support plate 6011 facing the reciprocating driving mechanism 1603 is provided with a rotatable transmission wheel 1602.

[0111] The flexible member 1601 passes through the transmission wheel 1602 of the reciprocating driving mechanism 1603 and the transmission wheel 1602 on the support plate 6011, and one end of the flexible member 1601 is connected with the support plate 6011, and the other end is connected with the support assembly 7.

[0112] Optionally, the reciprocating driving mechanism 1603 is a pneumatic cylinder, hydraulic cylinder or electric cylinder.

[0113] Optionally, the flexible member 1601 is a chain or a transmission belt. Correspondingly, the transmission wheel 1602 is a sprocket or a pulley.

[0114] Optionally, the number of the lifting driving devices 16 is two, and the two lifting driving devices 16 are arranged on the two sides of the support assembly 7, so that the force on the support assembly 7 is balanced and the operation is stable.

[0115] In some embodiments provided by the application, the battery charging and discharging device further comprises a locking assembly 17.

[0116] The locking assembly 17 is arranged on the support plate 6011, is telescopically arranged, and the telescopic direction of the locking assembly 17 intersects with the lifting direction of the support assembly 7. The locking assembly 17 is used for limiting the support assembly 7 in the lifting direction of the support assembly 7.

[0117] Specifically, in the state that the support assembly 7 is lifted to the position, the locking assembly 17 is extended to limit the support assembly 7 from descending. When the support assembly 7 needs to descend, the locking assembly 17 is retracted to release the limitation on the support assembly 7.

[0118] In the embodiment, the support assembly 7 is limited by the locking assembly 17, so that the support assembly 7 has accurate and stable positions, and the support assembly 7 can provide more stable support for the battery assembly 5.

[0119] In addition, the locking assembly 17 can bear the gravity of the support assembly 7, for example, in the normal charging and discharging, so that the lifting driving device 16 does not need to bear the load of the support assembly 7, thereby achieving the energy-saving effect.

[0120] Optionally, at least two locking assemblies 17 are arranged on the two sides of the support assembly 7, so that the force on the support assembly 7 is balanced.

[0121] Reference Figure 8 In some embodiments provided by the application, the positioning assembly 15 comprises a locking block 1701 and a locking driving mechanism 1702.

[0122] The locking block 1701 is slidably arranged on the support plate 6011, and the sliding direction of the locking block 1701 intersects with the lifting direction of the support assembly 7. The locking block 1701 is used for limiting the support assembly 7 in the lifting direction of the support assembly 7.

[0123] The locking driving mechanism 1702 is mounted on the support plate 6011 and is in transmission connection with the locking block 1701. The locking driving mechanism 1702 is used to drive the locking block 1701 to slide.

[0124] Optionally, the locking driving mechanism 1702 is a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0125] Reference Figure 9 As shown in some embodiments provided by the application, the support assembly 7 comprises a lifting seat 701 and a support seat 702.

[0126] The lifting seat 701 is slidably connected with the frame assembly 6 in the vertical direction. For example, the lifting seat 701 is slidably connected with the support plate 6011 of the frame assembly 6 in the vertical direction. Further, the lifting seat 701 is connected with the lifting driving device 16, and the locking assembly 17 is used to limit the lifting seat 701.

[0127] The support seat 702 is slidably arranged on the top of the lifting seat 701 in the first direction X and is used to support the battery assembly 5.

[0128] In this embodiment, by making the support seat 702 slide with the lifting seat 701, and the support seat 702 is used to support the battery assembly 5, in the process of the restraint device 14 pushing the battery assembly 5, the battery assembly 5 drives the support seat 702 to slide relative to the lifting seat 701, avoiding friction between the battery assembly 5 and the support assembly 7, or avoiding the support assembly 7 interfering with the battery assembly 5, so that the battery assembly 5 can smoothly run under the action of the restraint device 14.

[0129] Optionally, the support seat 702 can be provided with a surrounding protrusion for limiting the battery assembly 5, so that the battery assembly 5 has an accurate position on the support seat 702.

[0130] Optionally, the support assembly 7 further comprises an elastic member connected between the support seat 702 and the lifting seat 701. The elastic member is used to drive the support seat 702 to slide towards the direction close to the restraint device 14. The elastic member can be a spring.

[0131] In this embodiment, in the process of the restraint device 14 driving the battery assembly 5 to run, the battery assembly 5 drives the support seat 702 to slide away from the restraint device 14 until the battery assembly 5 stops abutting against the positioning assembly 15, and in this process, the support seat 702 causes the elastic member to deform.

[0132] After the charging and discharging is completed, the restraint device 14 is reset, the elastic member restores the deformation, thereby driving the support seat 702 and the battery assembly 5 to move away from the positioning assembly 15, so that the battery assembly 5 is separated from the positioning assembly 15, and interference or friction between the positioning assembly 15 and the battery assembly 5 in the lifting process is avoided, so that the positioning assembly 15 can be stably lifted.

[0133] Reference Figure 4 and Figures 12-15 As shown in FIGS. 1 to 5, in some embodiments provided by the present application, the battery probe positioning mechanism comprises a fixed seat 1 and a positioning unit 2. The fixed seat 1 can be arranged on the support plate 6011 of the frame assembly 6. The number of the positioning unit 2 is at least two, and the at least two positioning units 2 are arranged in sequence along a first direction X. It can be understood that the batteries 502 in the battery assembly 5 are also distributed along the first direction X.

[0134] The positioning unit 2 comprises a sliding seat 201, a probe assembly 202, a driving assembly 203 and a guide assembly 204.

[0135] The number of the sliding seat 201 is two, and the two sliding seats 201 are slidably connected with the fixed seat 1 along the first direction X. Optionally, the fixed seat 1 is provided with a guide rail corresponding to the sliding seat 201, and the sliding seat 201 is slidably connected with the corresponding guide rail.

[0136] The probe assembly 202 is slidably connected with the two sliding seats 201 along a second direction Y, and optionally, the two sliding seats 201 are distributed on opposite sides of the probe assembly 202 and are both slidably connected with the probe assembly 202. The second direction Y intersects with the first direction X, for example, the two directions are perpendicular. The probe assembly 202 is used to interface with the battery assembly 5, specifically, the pole of the battery 502 in the battery assembly 5 interfaces with the probe assembly 202.

[0137] The number of the driving assembly 203 is two, and the two driving assemblies 203 are arranged on the corresponding sliding seats 201, and optionally, the two driving assemblies 203 are arranged on the corresponding sliding seats 201 in one-to-one correspondence. The two driving assemblies 203 are both connected with the probe assembly 202, and the driving assembly 203 is used to drive the probe assembly 202 to slide, so that the probe assembly 202 can interface with or separate from the battery assembly 5. The two driving assemblies 203 jointly drive the probe assembly 202 to slide.

[0138] The guide assembly 204 is arranged on the probe assembly 202, and the guide assembly 204 is provided with a positioning groove 2041. The positioning groove 2041 is used to interface with the positioning protrusion 501 on the battery assembly 5. For example, the positioning groove 2041 faces the battery assembly 5.

[0139] In the embodiment, during use, the two driving assemblies 203 jointly drive the probe assembly 202 to move towards the battery assembly 5, the positioning groove 2041 of the guide assembly 204 is in abutment with the positioning protrusion 501 on the battery assembly 5, and in the process of abutment of the positioning protrusion 501 and the positioning groove 2041, the guide assembly 204 drives the probe assembly 202 and the sliding seat 201 to slide on the fixed seat 1, so that the probe assembly 202 is in abutment with the battery pole of the battery 502 of the battery assembly 5.

[0140] In this way, the probe assembly 202 is slidably connected to the fixed seat 1 through the corresponding sliding seat 201, so that each probe assembly 202 can adjust the position in the arrangement direction of the battery 502, so that each probe assembly 202 can adapt to the position of the corresponding battery 502, and the problem that the probe assembly 202 cannot be accurately connected with the battery 502 due to machining errors, assembly errors and battery 502 expansion is reduced.

[0141] In addition, since each probe assembly 202 is driven by the corresponding driving assembly 203, the actions of the probe assemblies 202 do not affect each other, so that the probe assemblies 202 can act in sequence, so that the next probe assembly 202 is extended and accurately connected, and then the next probe assembly 202 is extended and connected, so that each probe assembly 202 has an accurate position.

[0142] In addition, the probe assembly 202 is slidably connected to the two sliding seats 201, which can improve the stability of the sliding of the probe assembly 202, and the driving assembly 203 on the two sliding seats 201 jointly drives the probe assembly 202, so that the probe assembly 202 is balanced and runs stably, and the probe assembly 202 and the battery assembly 5 have sufficient plugging force.

[0143] Reference Figure 15 As shown in some embodiments provided by the application, the guide assembly 204 includes a guide block 2042 and an elastic member.

[0144] The guide block 2042 is slidably connected to the probe assembly 202 along the second direction Y, for example, the probe assembly 202 is provided with a guide rail extending along the second direction Y, and the guide hole is slidably connected to the guide rail. The guide block 2042 is provided with a positioning groove 2041.

[0145] The elastic member is arranged between the guide block 2042 and the probe assembly 202, and the elastic member is used to drive the guide block 2042 to slide towards the battery assembly 5. For example, the elastic member is a spring, and the two ends of the spring are respectively abutted with the guide hole and the probe assembly 202.

[0146] In the embodiment, the guide block 2042 is connected to the probe assembly 202 in a sliding manner, and the elastic member drives the guide block 2042 to slide towards the battery assembly 5. After the positioning protrusion 501 is inserted into the positioning groove 2041, the guide block 2042 can compress the elastic member and slide relative to the probe assembly 202, so as to avoid that the guide block 2042 contacts with the positioning protrusion 501 and hinders the probe assembly 202 from sliding towards the battery assembly 5.

[0147] In addition, after the probe assembly 202 is separated from the battery assembly 5, the guide block 2042 can be reset under the action of the elastic member, so as to be docked with the positioning protrusion 501 of the battery assembly 5 next time.

[0148] In some embodiments provided by the application, the guide assembly 204 further comprises a guide wheel 2043. The positioning groove 2041 is a V-shaped groove, and both sides of the positioning groove 2041 are provided with the rotatable guide wheel 2043. The outer circumferential surface of the guide wheel 2043 protrudes from the side wall of the positioning groove 2041. Correspondingly, the positioning protrusion 501 is a V-shaped protrusion or a trapezoidal protrusion.

[0149] In the embodiment, by setting the positioning groove 2041 as a V-shaped groove, when the V-shaped groove is used in cooperation with the V-shaped protrusion or the trapezoidal protrusion, the automatic centering function can be provided, so as to ensure the docking accuracy.

[0150] In addition, since the guide wheel 2043 is rotatable, and the outer circumferential surface of the guide wheel 2043 protrudes from the side wall of the positioning groove 2041, the sliding friction between the positioning groove 2041 and the positioning protrusion 501 can be significantly reduced, and the rolling friction is formed instead, so as to reduce the abrasion and improve the durability.

[0151] Reference Figure 14 and Figure 15 As shown in FIGS. 1, 2 and 3, in some embodiments provided by the application, the two sliding seats 201 are arranged along a third direction Z, and the third direction Z, the first direction X and the second direction Y intersect with each other. For example, the third direction Z, the first direction X and the second direction Y are perpendicular to each other.

[0152] In the third direction Z, the probe assembly 202 is arranged between the two sliding seats 201. Correspondingly, the two drive assemblies 203 are arranged on the two sliding seats 201 respectively, so that the two drive assemblies 203 are distributed on the opposite sides of the probe assembly 202.

[0153] In the embodiment, the two sliding seats 201 and the two driving assemblies 203 are arranged on two sides of the probe assembly 202, so that the size of the battery probe positioning mechanism in the third direction Z can be fully utilized, and the stroke path of the driving assembly 203 is arranged in parallel with the stroke path of the probe assembly 202, so that the size of the battery probe positioning mechanism in the second direction Y can be reduced, the compactness of the battery probe positioning mechanism in the second direction Y is improved, and the floor area occupied by the battery probe positioning mechanism is reduced.

[0154] With reference to Figure 15 As shown in the drawings, in some embodiments provided by the application, the driving assembly 203 comprises a fixed part 2031 and a driving part 2032 in sliding connection with the fixed part 2031.

[0155] The fixed part 2031 is connected to one side of the sliding seat 201 close to the battery assembly 5, and the driving part 2032 is arranged in a direction away from the battery assembly 5 and connected to the probe assembly 202.

[0156] In the embodiment, the stroke path of the driving assembly 203 is arranged in parallel with the stroke path of the probe assembly 202, so that the size of the battery probe positioning mechanism in the second direction Y can be reduced, the compactness of the battery probe positioning mechanism in the second direction Y is improved, and the floor area occupied by the battery probe positioning mechanism is reduced.

[0157] Optionally, the driving assembly 203 comprises a pneumatic cylinder, an oil cylinder or an electric cylinder. Correspondingly, the driving part 2032 is arranged as a driving rod, and the fixed part 2031 is arranged as a cylinder body.

[0158] In some embodiments provided by the application, the fixed seat 1 comprises a bottom plate 101, a vertical plate 102 and a lifting plate 103.

[0159] The number of the vertical plates 102 is two, both of the two vertical plates 102 extend along the third direction Z and are connected to the bottom plate 101, for example, the vertical plate 102 is screwed or welded to the bottom plate 101.

[0160] The lifting plate 103 extends along the third direction Z and is adjustably connected to the two vertical plates 102 along the third direction Z. Specifically, both ends of the lifting plate 103 are adjustably connected to the two vertical plates 102 along the third direction Z.

[0161] The sliding seat 201 is in sliding connection with the lifting plate 103.

[0162] In the embodiment, the two vertical plates 102 are connected to the bottom plate 101, so that the fixed seat 1 can be formed as a whole through the bottom plate 101. The lifting plate 103 is connected to the two vertical plates 102, so that the lifting plate 103 is more stable.

[0163] By making the lifting plate 103 position adjustable along the third direction Z, the effect of adjusting the position height of the probe assembly 202 is achieved by adjusting the position of the lifting plate 103 along the third direction Z, so as to adapt the position height of the probe assembly 202 to the position height of the battery pole of the battery assembly 5.

[0164] Reference Figure 14 As shown, the battery probe positioning mechanism further comprises a locking bolt 106. The standing plate 102 is provided with a waist-shaped hole 105 extending along the third direction Z, the waist-shaped hole 105 penetrates the standing plate 102 along the first direction X, and the locking bolt 106 penetrates the waist-shaped hole 105 and is threadedly connected with the lifting plate 103. In this way, the position of the lifting plate 103 can be adjusted after the locking bolt 106 is loosened.

[0165] Optionally, the standing plate 102 is provided with a guide groove extending along the third direction Z, and the guide groove is open toward the lifting plate 103, and the lifting plate 103 is in sliding fit with the guide groove. In this way, the lifting plate 103 is limited in the second direction Y by the guide groove.

[0166] Optionally, the battery probe positioning mechanism further comprises a positioning bolt 107. The positioning bolt 107 extends along the third direction Z, and the positioning bolt 107 is threadedly connected with the standing plate 102, for example, a threaded seat can be mounted on the standing plate 102, and the positioning bolt 107 is threadedly connected with the threaded seat.

[0167] The positioning bolt 107 is used to abut against one end of the lifting plate 103 close to the bottom plate 101, and limit the lifting plate 103 in the third direction Z.

[0168] In the embodiment, by abutting the positioning bolt 107 against the lifting plate 103, the problem of downward movement of the lifting plate 103 due to vibration or gravity can be prevented, and the position of the lifting plate 103 is ensured to be accurate. By threadedly connecting the positioning bolt 107 with the standing plate 102, the position of the positioning bolt 107 can be adapted to the position of the lifting plate 103 by screwing the positioning bolt 107.

[0169] Of course, in some embodiments not shown, the lifting plate 103 can also be lifted and lowered under the drive of a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0170] In some embodiments provided by the application, the lifting plate 103 is provided with a through hole 104, two sliding seats 201 are distributed on both sides of the through hole 104 along the third direction Z, and the sliding seats 201 are arranged on the side of the lifting plate 103 close to the battery assembly 5. Correspondingly, the fixed part 2031 of the driving assembly 203 is connected to the side of the sliding seat 201 close to the battery assembly 5.

[0171] The probe assembly 202 is arranged in the through hole 104, and an end of the probe assembly 202 away from the battery assembly 5 is connected with the driving assembly 203. Specifically, the end of the probe assembly 202 away from the battery assembly 5 is connected with the driving part 2032 of the driving assembly 203.

[0172] In the embodiment, the two sliding seats 201 and the two driving assemblies 203 are arranged on both sides of the through hole 104, and the probe assembly 202 is arranged in the through hole 104, so that the size of the battery probe positioning mechanism in the third direction Z can be fully utilized, and the stroke path of the driving assembly 203 and the stroke path of the probe assembly 202 are arranged side by side, so that the size of the battery probe positioning mechanism in the second direction Y can be reduced, the compactness of the battery probe positioning mechanism in the second direction Y is improved, and the floor area occupied by the battery probe positioning mechanism is reduced.

[0173] Reference Figure 15 As shown in some embodiments provided by the application, the probe assembly 202 includes a mounting seat 2021 and a probe 2022. The mounting seat 2021 is connected with the two sliding seats 201, and the probe 2022 is arranged on the side of the mounting seat 2021 close to the battery assembly 5.

[0174] In some embodiments provided by the application, the battery probe positioning mechanism further includes a reset driving device 3 and a positioning structure 4.

[0175] The reset driving device 3 and the positioning structure 4 are both mounted on the fixed seat 1. At least two positioning units 2 are arranged in a queue along the first direction X. The reset driving device 3 is located at one end of the queue formed by the positioning units 2, and the positioning structure 4 is located at the other end of the queue. The reset driving device 3 is used to drive the queue to slide towards the positioning structure 4.

[0176] Since the gap between the positioning units 2 changes due to the cooperation between the positioning grooves 2041 and the positioning protrusions 501 during the charging and discharging process of the battery assembly 5, in the embodiment, after the charging and discharging process of the battery assembly 5 is completed, the reset driving device 3 is used to drive the positioning units 2, and then the positioning units 2 abut and finally abut against the positioning structure 4 in sequence, so that all the positioning units 2 can be reset to the initial position, so as to facilitate the next docking with the battery assembly 5.

[0177] Optionally, the reset driving device 3 is a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0178] Reference Figure 9 As shown in some embodiments provided by the application, the battery assembly 5 includes a tray 503 and a plurality of batteries 502 arranged on the tray 503. The plurality of batteries 502 are arranged in sequence on the tray 503, for example, in the charging and discharging state, the plurality of batteries 502 are arranged along the first direction X.

[0179] Further, the tray 503 is provided with positioning protrusions 501, and each battery 502 is provided with a corresponding positioning protrusion 501, and the positioning protrusion 501 is used for limiting cooperation with the corresponding positioning groove 2041.

[0180] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A battery charging and discharging device, characterized in that, include: The frame assembly (6) has an internal space for accommodating the battery assembly (5); A support component (7) is provided in the receiving space and is used to support the battery assembly (5). A charging component (8) is provided above the support component (7). A first airflow driving device (801) is provided at one end of the charging component (8) near the support component (7). The air inlet side of the first airflow driving device (801) faces the support component (7). A heat exchange device (9) is provided in the accommodating space and located on one side of the support assembly (7). The heat exchange device (9) is used to exchange heat between the airflow and the refrigerant. The second airflow drive device (10) is located above the heat exchange device (9), and the air outlet side of the second airflow drive device (10) faces the heat exchange device (9). The third airflow drive device (11) is located on the side of the heat exchange device (9) away from the second airflow drive device (10), and the air outlet side of the third airflow drive device (11) faces the support assembly (7). The number of the support components (7) is at least two, and each support component (7) is provided with the corresponding charging component (8), the second airflow driving device (10) and the third airflow driving device (11). The heat exchange device (9) is provided between two adjacent support components (7), and the second airflow drive device (10) of the two adjacent support components (7) is located above the heat exchange device (9), and the third airflow drive device (11) of the two adjacent support components (7) is located below the heat exchange device (9).

2. The battery charging and discharging device according to claim 1, characterized in that, The second airflow drive device (10) of each of the two adjacent support components (7) is mounted on the heat exchange device (9), and the second airflow drive devices (10) of the two adjacent support components (7) are connected to each other.

3. The battery charging and discharging device according to claim 1, characterized in that, The battery charging and discharging device also includes a connecting rod (12), and the third airflow driving device (11) of the two adjacent support components (7) is spaced apart and installed on the frame assembly (6). The connecting rod (12) is connected between the third airflow driving device (11) of the two adjacent support components (7).

4. The battery charging and discharging device according to any one of claims 1-3, characterized in that, Along the airflow driving direction of the third airflow driving device (11), the second airflow driving device (10) is connected to the heat exchange device (9) on the side close to the support assembly (7), and the side of the second airflow driving device (10) away from the support assembly (7) is tilted away from the heat exchange device (9).

5. The battery charging and discharging device according to claim 4, characterized in that, The battery charging and discharging device also includes a flow guide plate (13). The guide plate (13) is located on the air inlet side of the second airflow drive device (10) and along the airflow drive direction of the third airflow drive device (11). One end of the guide plate (13) is located on the side of the second airflow drive device (10) away from the support assembly (7), and the other end of the guide plate (13) is inclined toward the side where the support assembly (7) is located and connected to the inner wall of the accommodating space.

6. The battery charging and discharging device according to any one of claims 1-3, characterized in that, The battery charging and discharging device also includes a battery probe positioning mechanism, which is located on one side of the support assembly (7) and is used to dock with the battery assembly (5). The third airflow driving device (11) is located on the side of the battery probe positioning mechanism away from the support assembly (7).

7. The battery charging and discharging device according to claim 6, characterized in that, The battery probe positioning mechanism includes a fixed base (1) and at least two positioning units (2) arranged along a first direction (X). The positioning unit (2) includes: There are two sliding seats (201), and both of them are slidably connected to the fixed seat (1) along the first direction (X); The probe assembly (202) is slidably connected to the two sliding seats (201) along the second direction (Y), which intersects the first direction (X). The probe assembly (202) is used to dock with the battery assembly (5). There are two drive components (203), each of which is disposed on the corresponding sliding seat (201) and connected to the probe component (202). The drive components (203) are used to jointly drive the probe component (202) to slide. A guide component (204) is provided on the probe component (202). The guide component (204) is provided with a positioning groove (2041) for docking with a positioning protrusion (501) on the battery (502).

8. The battery charging and discharging device according to claim 6, characterized in that, Along the second direction (Y), the support component (7) is provided with corresponding battery probe positioning mechanisms on both sides; The battery charging and discharging device further includes a restraint device (14) and a positioning component (15). Along the first direction (X), the restraint device (14) and the positioning component (15) are distributed on both sides of the support component (7). The positioning component (15) is vertically and vertically positioned along the third direction (Z). The restraint device (14) is telescopically positioned along the first direction (X) and is used to squeeze the battery component (5) in the direction where the positioning component (15) is located. The first direction (X), the second direction (Y) and the third direction (Z) intersect each other.

9. The battery charging and discharging device according to any one of claims 1-3, characterized in that, The battery charging and discharging device includes a temperature detection device and a control system; The temperature detection device is used to detect at least one of the ambient temperature in the containment space and the operating temperature of the battery assembly (5). The temperature detection device, the first airflow drive device (801), the second airflow drive device (10) and the third airflow drive device (11) are all electrically connected to the control system. The control system controls the power of at least one of the first airflow drive device (801), the second airflow drive device (10), and the third airflow drive device (11) based on at least one of the ambient temperature and the operating temperature.

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