Battery charging and discharging device

Abstract

The application relates to the field of battery production and discloses a battery charging and discharging device which comprises a frame assembly internally provided with a containing space for containing a battery assembly; a supporting assembly which is arranged in the containing space in a liftable manner and is used for supporting the battery assembly; a charging assembly which is arranged in the containing space and is used for charging the battery assembly; a containing box which is arranged below the supporting assembly, the top of the containing box is provided with an opening through which the supporting assembly can pass, the containing box is used for storing fire-fighting liquid; and a lifting driving device which is connected with the supporting assembly and is used for driving the supporting assembly to enter and exit the containing box. Compared with the spraying cooling mode, the battery assembly is soaked in the fire-fighting liquid, the fire-fighting liquid can be prevented from evaporating too fast, the cooling efficiency is improved, the cooling effect is ensured, the contact area of the battery assembly and the fire-fighting liquid can be increased, the battery assembly can be uniformly cooled, and the problem that the temperature of a part of the battery assembly is too high can be avoided.

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 is an indispensable step for newly produced or repaired batteries. This process not only activates the battery to achieve optimal performance state, but also is a key link for detecting battery health and ensuring its compliance with quality standards. In order to achieve these purposes, a specially designed battery charging and discharging device is usually used.

[0003] Since the battery may generate heat runaway or combustion during charging and discharging process, in the related art, the battery charging and discharging device is provided with a fire-fighting pipeline, and water is sprayed to the battery to cool it down and inhibit the spread of heat runaway or combustion when the battery generates combustion or heat runaway.

[0004] However, the spraying method for cooling the battery has low cooling efficiency, poor cooling effect, and small coverage, and poor cooling uniformity, which may cause the temperature of part of the battery area to be too high, and further heat runaway. SUMMARY

[0005] Therefore, the present application provides a battery charging and discharging device to solve or improve the problem of poor effect of the battery charging and discharging device in the related art using spraying cooling.

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

[0007] A frame assembly is internally provided with a containing space for containing a battery assembly;

[0008] A support assembly is provided in the containing space in a liftable manner and is used for supporting the battery assembly;

[0009] A charging assembly is provided in the containing space and is used for charging the battery assembly;

[0010] A containing box is provided below the support assembly, the top of the containing box is provided with an opening through which the support assembly passes, and the containing box is used for storing fire-fighting liquid;

[0011] A lifting driving device is connected with the support assembly and is used for driving the support assembly to enter and exit the containing box.

[0012] The battery charging and discharging device provided by the application can drive the supporting assembly to descend into the containing box when the battery assembly generates thermal runaway or combustion, so that the battery assembly on the supporting assembly can descend into the containing box synchronously, so that the battery assembly is soaked in the fire-fighting liquid in the containing box, and then the battery assembly is rapidly cooled, combustion and explosion are inhibited, and fire spreading is prevented.

[0013] In this way, compared with the spray cooling mode, the battery assembly is soaked in the fire-fighting liquid, the fire-fighting liquid can be prevented from evaporating too fast, the cooling efficiency is improved, the cooling effect is ensured, the contact area between the battery assembly and the fire-fighting liquid is increased, the cooling of the battery assembly is uniform, and the problem of excessively high temperature in a part of the battery assembly is avoided. 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 specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 A front view of the battery charging and discharging device provided by the embodiment of the application;

[0016] Figure 2 A schematic view of an air circulation path in the battery charging and discharging device provided by the embodiment of the application;

[0017] Figure 3 A schematic view of an internal structure of the battery charging and discharging device provided by the embodiment of the application;

[0018] Figure 4 A schematic view of the battery charging and discharging device provided by the embodiment of the application from another angle; Figure 3 A schematic view of the battery charging and discharging device provided by the embodiment of the application from another angle;

[0019] Figure 5 A schematic view of the battery charging and discharging device provided by the embodiment of the application from another angle; Figure 4 A schematic view of the battery charging and discharging device provided by the embodiment of the application from another angle;

[0020] Figure 6 A schematic view of a structure in which the restraining device and the positioning assembly jointly extrude the battery assembly;

[0021] Figure 7 A schematic view of a structure in which the supporting assembly is connected to the frame assembly;

[0022] Figure 8 A schematic view of a structure of the lifting driving device provided by the embodiment of the application;

[0023] Figure 9A structural schematic view of a battery assembly provided by an embodiment of the present application when arranged on a supporting assembly;

[0024] Figure 10 A structural schematic view of a charging assembly provided by an embodiment of the present application;

[0025] Figure 11 A structural schematic view of a restraint device provided by an embodiment of the present application;

[0026] Figure 12 A structural schematic view of a battery probe positioning mechanism cooperating with a battery assembly provided by an embodiment of the present application;

[0027] Figure 13 A Figure 12 A local enlarged schematic view of I shown in the figure;

[0028] Figure 14 A structural schematic view of a battery probe positioning mechanism provided by an embodiment of the present application;

[0029] Figure 15 A structural schematic view of a positioning unit provided by an embodiment of the present application.

[0030] Explanation of reference signs:

[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 containing box 20 and a lifting driving device 16.

[0035] The frame assembly 6 has an accommodating space 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 in a liftable manner and is used for supporting the battery assembly 5. Optionally, the support assembly 7 is slidably connected to the frame assembly 6.

[0037] The charging assembly 8 is arranged in the accommodating space and is used for charging the battery assembly 5.

[0038] The accommodating box 20 is arranged below the support assembly 7, and the top of the accommodating box 20 is provided with an opening through which the support assembly 7 passes. The accommodating box 20 is used for storing fire-fighting liquid, which includes but is not limited to water.

[0039] The lifting driving device 16 is connected to the support assembly 7 and is used for driving the support assembly 7 to enter or exit the accommodating box 20.

[0040] In this embodiment, when the battery assembly 5 generates thermal runaway or combustion, the lifting driving device 16 can drive the support assembly 7 to descend into the accommodating box 20, so that the battery assembly 5 on the support assembly 7 is synchronously lowered into the accommodating box 20, thereby causing the battery assembly 5 to be soaked in the fire-fighting liquid in the accommodating box 20, and further rapidly cooling the battery assembly 5, inhibiting combustion and explosion, and preventing the spread of fire.

[0041] In this way, compared with the spray cooling method, soaking the battery assembly 5 in the fire-fighting liquid can avoid rapid evaporation of the fire-fighting liquid, thereby improving the cooling efficiency and ensuring the cooling effect, and can further increase the contact area between the battery assembly 5 and the fire-fighting liquid, so that the battery assembly 5 is uniformly cooled and the problem of excessive temperature in some areas of the battery 502 is avoided.

[0042] Reference Figure 8 As shown 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.

[0043] The reciprocating driving mechanism 1603 comprises a fixed end and a driving end. The fixed end of the reciprocating driving mechanism 1603 is connected to the frame assembly 6, and the driving end of the reciprocating driving mechanism 1603 is provided with a rotatable transmission wheel 1602. The frame assembly 6 is also provided with a rotatable transmission wheel 1602.

[0044] One end of the flexible member 1601 is connected to the frame assembly 6, and the other end passes through the transmission wheel 1602 on the driving end and the transmission wheel 1602 on the frame assembly 6 in sequence and is connected to the support assembly 7.

[0045] In this embodiment, the support assembly 7 descends under the action of gravity during the extension of the reciprocating driving mechanism 1603. During the 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.

[0046] In this way, the reciprocating driving mechanism 1603 can drive the support assembly 7 in and out of the containing box 20 through the flexible member 1601, without being arranged in the containing box 20, thereby avoiding the problem of reducing the capacity of the containing box 20 due to the space occupied by the reciprocating driving mechanism 1603.

[0047] 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.

[0048] Reference Figure 8 As shown in the drawings, in some embodiments provided by the application, the frame assembly 6 includes a support plate 6011. For example, the support plate 6011 is connected to the framework structure of the frame assembly 6.

[0049] The support assembly 7 is slidably connected to the support plate 6011 in the vertical direction, and the support plate 6011 is provided with a through hole 104 for the support assembly 7 to pass through, for example, the upper end portion of the support assembly 7 can pass through the through hole 104 to support the battery assembly 5. The reciprocating driving mechanism 1603 is arranged below the support plate 6011, and the surface of the support plate 6011 facing the reciprocating driving mechanism 1603 is provided with the transmission wheel 1602.

[0050] In this embodiment, the reciprocating driving mechanism 1603 can be arranged below the support plate 6011, thereby avoiding the occupation of the space above the support plate 6011 by the reciprocating driving mechanism 1603, and fully utilizing the installation space below the support plate 6011.

[0051] Optionally, the reciprocating driving mechanism 1603 is arranged as a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0052] Optionally, the flexible member 1601 is arranged as a chain or a transmission belt. Correspondingly, the transmission wheel 1602 is a sprocket or a pulley.

[0053] 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.

[0054] In some embodiments provided by the application, the battery charging and discharging device further comprises a locking assembly 17.

[0055] The locking assembly 17 is arranged on the frame assembly 6, for example, the locking assembly 17 is arranged on the support plate 6011, and the locking assembly 17 is arranged in a retractable manner. The retracting 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, so as to limit the lowering of the support assembly 7.

[0056] Specifically, in the state that the support assembly 7 is lifted to the position, the locking assembly 17 is extended to limit the lowering of the support assembly 7. When the support assembly 7 needs to be lowered, the locking assembly 17 is retracted to release the limitation of the support assembly 7.

[0057] In the embodiment, the locking assembly 17 limits the support assembly 7, 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] The locking driving mechanism 1702 is installed on the support plate 6011 and is in transmission connection with the locking block 1701. The locking driving mechanism 1702 is used for driving the locking block 1701 to slide.

[0063] Optionally, the locking driving mechanism 1702 is arranged as a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0064] In some embodiments provided by the present application, the battery charging and discharging device further comprises a fire-fighting pipeline 18 and a fire-fighting nozzle 19.

[0065] The fire-fighting nozzle 19 is connected to the fire-fighting pipeline 18, and is arranged on one side of the support assembly 7, and the spray opening of the fire-fighting nozzle 19 faces the direction in which the support assembly 7 is located.

[0066] In this embodiment, when the battery assembly 5 generates thermal runaway, the fire-fighting liquid can be transported through the fire-fighting pipeline 18, and sprayed to the battery assembly 5 through the fire-fighting nozzle 19, so as to inhibit the thermal runaway or inhibit the spread of smoke.

[0067] In this way, the temperature rise of the battery assembly 5 can be inhibited through the cooperation of soaking and spraying. At the same time, since the lowering of the support assembly 7 needs a certain time length, and the opening time of the fire-fighting pipeline 18 is relatively short, the fire-fighting liquid can be sprayed by the fire-fighting nozzle 19 during the lowering of the support assembly 7, so as to avoid the problem of violent burning of the battery assembly 5 during the lowering of the support assembly 7.

[0068] Optionally, the fire-fighting liquid can be water or fire-fighting foam.

[0069] Optionally, the battery charging and discharging device further comprises a control system. The fire-fighting pipeline 18 is electrically connected to the control system. It can be understood that the control valve in the fire-fighting pipeline 18 is electrically connected to the control system.

[0070] The control system controls the opening of the fire-fighting pipeline 18 based on at least one of the working temperature of the battery assembly 5 and the environmental temperature. For example, when the working temperature or the environmental temperature is too high, the surface battery assembly 5 may generate the problem of thermal runaway, and the control system can be opened through the fire-fighting pipeline 18.

[0071] Further, the battery charging and discharging device further comprises a smoke detection device. The smoke detection device can be arranged above the support assembly 7, and is used to detect the smoke information in the containing space. The smoke detection device is electrically connected to the control system. The control system determines to control the opening of the fire-fighting pipeline 18 based on the smoke information when the smoke is generated.

[0072] Optionally, the lifting driving device 16 and the fire-fighting pipeline 18 are both electrically connected to the control system.

[0073] The control system controls the lowering of the support assembly 7 by the lifting driving device 16 and the opening of the fire-fighting pipeline 18 based on at least one of the environmental temperature in the containing space, the working temperature of the battery assembly 5 and the smoke information. For example, when the environmental temperature or the working temperature is too high, or the containing space generates smoke, the control system controls the lifting driving device 16 to drive the support assembly 7 to lower.

[0074] In the embodiment, 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 suppress the smoke, and the lifting driving device 16 is controlled to drive the support assembly 7 to descend, so that the battery assembly 5 is soaked in the fire-fighting liquid in the containing box 20.

[0075] In this way, the temperature rise of the battery assembly 5 can be suppressed by the cooperation of soaking and spraying. At the same time, since the support assembly 7 needs a certain time to descend, and the opening time of the fire-fighting pipeline 18 is short, the fire-fighting nozzle 19 can always spray the fire-fighting liquid during the descent of the support assembly 7, so that the problem of violent burning of the battery assembly 5 during the descent of the support assembly 7 is avoided.

[0076] Reference Figure 4 and Figures 12-15 In some embodiments provided by the application, the battery charging and discharging device further comprises a battery probe positioning mechanism.

[0077] The battery probe positioning mechanism is arranged on one side of the support assembly 7 and is used to be connected with the battery assembly 5. For example, the battery probe positioning mechanism is used to be electrically connected with the charging assembly 8 to charge the battery assembly 5, or the battery probe positioning mechanism is used to be electrically connected with the load to discharge the battery assembly 5. The third airflow driving device 11 is arranged on the side of the battery probe positioning mechanism away from the support assembly 7.

[0078] In the embodiment, the battery probe positioning mechanism is arranged to be connected with the battery assembly 5, so that the battery assembly 5 can be charged and discharged by the battery probe positioning mechanism.

[0079] Reference Figures 3-6 In some embodiments provided by the application, on the second direction Y, the two sides of the support assembly 7 are respectively provided with corresponding battery probe positioning mechanisms. In this way, the two battery probe positioning mechanisms can respectively abut against the pole columns at the two ends of the battery 502, so that the charging and discharging device is suitable for the battery 502 in which the positive and negative pole columns are arranged at the two ends of the battery 502.

[0080] In some embodiments provided by the application, as shown in Figure 4 The battery charging and discharging device further comprises a restraint device 14 and a positioning assembly 15.

[0081] The restraint device 14 and the positioning assembly 15 are distributed on both sides of the support assembly 7, for example, along the first direction X. The positioning assembly 15 is arranged to be liftable, for example, along the third direction Z. The restraint device 14 is arranged to be retractable and used to press the battery assembly 5 in the direction of the positioning assembly 15. For example, the restraint device 14 is arranged to be retractable along the first direction X. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0082] In the embodiment, after the battery assembly 5 is placed on the support assembly 7, the restraint device 14 is extended to press the battery assembly 5 in the direction of the positioning assembly 15, and the battery assembly 5 is restrained by the restraint device 14 and the positioning assembly 15 to prevent the battery assembly 5 from swelling.

[0083] The top of the support assembly 7 is provided with the charging assembly 8, and the sides are provided with the battery probe positioning mechanism. The positioning assembly 15 is arranged to be liftable to avoid the battery assembly 5 to facilitate the taking and placing of the battery assembly 5.

[0084] For example, before placing the battery assembly 5, 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 to 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 to facilitate the taking of the battery assembly 5 through the position of the positioning assembly 15.

[0085] In some embodiments provided by the application, the positioning assembly 15 comprises a positioning block and a positioning driving mechanism 1502.

[0086] 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.

[0087] The positioning driving mechanism 1502 is connected with the positioning block and 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.

[0088] In the embodiment, the positioning block is driven by the positioning driving mechanism 1502 to be lifted to avoid the battery assembly 5 and to cooperate with the restraint device 14 to restrain the battery assembly 5.

[0089] Optionally, the positioning driving mechanism 1502 is arranged as a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0090] Reference Figure 9 As shown in the drawings, in some embodiments provided by the application, the support assembly 7 comprises a lifting seat 701 and a support seat 702.

[0091] 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 for limiting the lifting seat 701.

[0092] The support seat 702 is slidably arranged on the lifting seat 701 and is used for supporting the battery assembly 5. For example, the support seat 702 is slidably arranged on the top of the lifting seat 701 in the first direction X.

[0093] In this embodiment, by making the support seat 702 and the lifting seat 701 slide together, and the support seat 702 is used for supporting 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 from hindering or interfering with the battery assembly 5, so that the battery assembly 5 can smoothly run under the action of the restraint device 14.

[0094] 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.

[0095] Optionally, the support assembly 7 further comprises an elastic member, and the elastic member connects the support seat 702 and the lifting seat 701. The elastic member is used for driving the support seat 702 to slide towards the direction away from the restraint device 14.

[0096] 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.

[0097] 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, avoiding the positioning assembly 15 from interfering with or rubbing against the battery assembly 5 in the lifting process, so that the positioning assembly 15 can stably lift.

[0098] Optionally, the elastic member is provided as a spring or a tension spring.

[0099] In some embodiments provided by the present 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.

[0100] The support can be mounted on the support plate 6011. The lead screw 1401 is rotationally connected with 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.

[0101] 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 with the driving block 1405 and the pressing block 1406 respectively.

[0102] The number of the pressing rods 1407 is multiple. One end of the pressing rod 1407 is connected with the pressing block 1406, and the other end extends towards the direction where the support assembly 7 is located. The pressing rod 1407 is used to abut against the battery assembly 5 and abut against the battery assembly 5.

[0103] In this embodiment, the motor 1403 drives the lead screw 1401 to rotate through the gear 1402, and 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, and the pressing block 1406 presses the battery assembly 5 through the pressing rod 1407.

[0104] The pressure sensor 1408 is arranged between the driving block 1405 and the pressing block 1406, so as to accurately obtain the size of the force exerted by the restraint device 14 on the battery assembly 5.

[0105] Alternatively, the number of the lead screws 1401 is two, and the thread directions of the two lead screws 1401 are opposite. The two lead screws 1401 are each provided with a corresponding gear 1402, and 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 this embodiment, the driving block 1405 can run more stably by being driven by the two lead screws 1401 at the same time.

[0106] In some embodiments of the present application, the charging assembly 8 is arranged above the supporting assembly 7, and a space is provided between the charging assembly 8 and the supporting assembly 7 for accommodating the battery assembly 5. The first air flow driving device 801 is arranged at one end of the charging assembly 8 close to the supporting assembly 7, and the air inlet side of the first air flow driving device 801 faces the supporting assembly 7. That is, the air flow driving direction of the first air flow driving device 801 is arranged from the supporting assembly 7 to the charging assembly 8. Optionally, the first air flow driving device 801 can be a fan.

[0107] Further, the battery 502 charging device further comprises a heat exchange device 9, a second air flow driving device 10, and a third air flow driving device 11.

[0108] The heat exchange device 9 is arranged in the accommodating space, and the heat exchange device 9 is arranged at one side of the supporting assembly 7. The heat exchange device 9 is used for heat exchange between the air flow and the refrigerant to cool the air flow. 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 with the frame assembly 6.

[0109] The second air flow driving device 10 is arranged above the heat exchange device 9, and the air outlet side of the second air flow driving device 10 faces the heat exchange device 9. The second air flow driving device 10 is used for driving the air flow to flow through the heat exchange device 9, so that the heat exchange device 9 absorbs the heat of the air flow. Optionally, the second air flow driving device 10 can be a fan.

[0110] The third air flow driving device 11 is arranged at the side of the heat exchange device 9 away from the second air flow driving device 10, and the air outlet side of the third air flow driving device 11 faces the supporting assembly 7. The third air flow driving device 11 drives the air flow discharged from the heat exchange device 9 to the position of the supporting assembly 7, so as to cool the battery assembly 5 on the supporting assembly 7. Optionally, the third air flow driving device 11 can be a fan.

[0111] Reference Figure 2 The arrows in FIG. 8 represent the air flow direction. In this embodiment, after the battery assembly 5 arranged on the supporting 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 accommodating space. Under the action of the second air flow driving device 10, the air at the top of the accommodating space flows through the heat exchange device 9 and exchanges heat with the heat exchange device 9 to be cooled. The low-temperature air discharged from the heat exchange device 9 is blown to the battery assembly 5 on the supporting assembly 7 under the driving of the third air flow driving device 11, so as to cool the battery assembly 5. Thus, an air flow circulation is formed.

[0112] In this way, air circulation is achieved by using the natural rising hot air flow in combination with the first air flow driving device 801, which can effectively cool the battery assembly 5 without increasing energy consumption. The first air flow driving device 801 draws air from the location of the battery assembly 5, which can fully utilize the cooling capacity provided by the heat exchange device 9, improve the cooling capacity utilization rate, and accelerate the flow rate of the air at the location of the battery assembly 5, thereby accelerating the cooling rate of the battery assembly 5.

[0113] The second air flow driving device 10 can guide the hot air accumulated at the top of the containing space to the heat exchange device 9 for cooling, which can prevent the overall temperature in the containing space from being too high and affecting the battery assembly 5 or other electrical elements.

[0114] The heat exchange device 9 arranged in the containing space can guide the heat in the containing space out through the circulation of refrigerant. The heat exchange device 9 can maintain high efficiency in different working environments and is not easily affected by external temperature changes. Compared with the forced ventilation form of the fan, the heat exchange device 9 can guide the heat in the containing space out without bringing dust into the containing space, thereby avoiding the influence of dust on electrical elements.

[0115] 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 cooling capacity utilization rate and reducing heat exchange with the external environment, so that the device is not affected by external temperature fluctuations.

[0116] Reference Figure 2 As shown in some embodiments provided by the present application, the number of support assemblies 7 is at least two. For example, the number of support assemblies 7 will be taken as two in the following description. 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.

[0117] Among them, the heat exchange device 9 is arranged between the adjacent two support assemblies 7. The second air flow driving device 10 of the adjacent two support assemblies 7 is arranged above the heat exchange device 9, and the air outlet side of the second air flow driving device 10 faces the heat exchange device 9.

[0118] The third air flow driving device 11 of the adjacent two support assemblies 7 is arranged below the heat exchange device 9, and the third air flow driving device 11 faces the corresponding support assembly 7.

[0119] In this embodiment, at least two support assemblies 7 are arranged, and each support assembly 7 has 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.

[0120] In addition, by arranging the second airflow driving devices 10 of the two adjacent support assemblies 7 above the heat exchange device 9 and arranging the third airflow driving devices 11 of the two adjacent support assemblies 7 below the heat exchange device 9, the battery assemblies 5 on the two adjacent support assemblies 7 can share the heat exchange device 9, thereby reducing the number of parts and cost and making the overall battery charging and discharging device more compact and maximizing the use of available space.

[0121] As shown in FIGS. 1 and 2, in some embodiments provided by the present application, the second airflow driving devices 10 of the two adjacent support assemblies 7 are arranged on the heat exchange device 9 and connected to each other. Figure 2 For example, along the driving airflow direction of the third airflow driving devices 11 (i.e., the left-right direction in FIG. 1), one side of the second airflow driving device 10 is connected to the heat exchange device 9 and the other side is connected to another second airflow driving device 10. Figure 3 Figure 2 In the present embodiment, by arranging the two second airflow driving devices 10 on the heat exchange device 9, the compactness between the second airflow driving devices 10 and the heat exchange device 9 is higher, thereby saving space in the accommodation space.

[0122] By connecting the two second airflow driving devices 10, the connection strength and rigidity of the second airflow driving devices 10 and the heat exchange device 9 are improved, thereby improving the stability of the installation of the two second airflow driving devices 10 on the heat exchange device 9.

[0123] As shown in FIGS. 1 and 2, in some embodiments provided by the present application, the battery charging and discharging device further comprises a connecting rod 12.

[0124] As shown in FIGS. 1 and 2, in some embodiments provided by the present application, the battery charging and discharging device further comprises a connecting rod 12. Figure 2 Figure 3 As shown in FIGS. 1 and 2, in some embodiments provided by the present application, the battery charging and discharging device further comprises a connecting rod 12.

[0125] The third airflow driving devices 11 of the two adjacent support assemblies 7 are arranged at intervals and mounted on the frame assembly 6, for example, the air outlet end of the heat exchange device 9 faces the gap between the two third airflow driving devices 11. The connecting rod 12 is connected between the third airflow driving devices 11 of the two adjacent support assemblies 7.

[0126] In the present embodiment, by connecting the two third airflow driving devices 11 through the connecting rod 12, the connection strength and rigidity of the third airflow driving devices 11 and the frame assembly 6 are improved, thereby improving the stability of the installation of the two third airflow driving devices 11.

[0127] As shown in FIGS. 1 and 2, in some embodiments provided by the present application, the battery charging and discharging device further comprises a connecting rod 12. Figure 2 Figure 3 ​​​As shown in the drawings, in some embodiments provided by the present application, 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 at 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 inclined away from the heat exchange device 9. It can be understood that the airflow driving direction of the third airflow driving device 11 is the left-right direction in the drawings. Figure 2

[0128] As shown in the drawings, in some embodiments provided by the present application, 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 at 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 inclined away from the heat exchange device 9. It can be understood that the airflow driving direction of the third airflow driving device 11 is the left-right direction in the drawings. Figure 2

[0129] In the present embodiment, by connecting the side of the second airflow driving device 10 close to the support assembly 7 to the heat exchange device 9, and inclining the side of the second airflow driving device 10 away from the support assembly 7 away from the heat exchange device 9, the air inlet of the second airflow driving device 10 is closer to the flow direction of the top airflow, that is, the airflow does not need to change direction greatly to enter the second airflow driving device 10, thereby reducing the resistance when the airflow enters.

[0130] As shown in the drawings, in some embodiments provided by the present application, the battery charging and discharging device further comprises a flow guide plate 13. Figure 2 Figure 3 The flow guide plate 13 is located at the air inlet side of the second airflow driving device 10, and along the airflow driving direction of the third airflow driving device 11, one end of the flow guide plate 13 is arranged at the side of the second airflow driving device 10 away from the support assembly 7, and the other end of the flow guide plate 13 is inclined toward the side where the support assembly 7 is located and connected to the inner wall of the containing space.

[0131] In the present embodiment, by arranging the flow guide plate 13, and arranging one end of the flow guide plate 13 at the second airflow driving device 10 and the other end of the flow guide plate 13 inclined toward the side where the support assembly 7 is located and connected to the inner wall of the containing space, on the one hand, the heat at the top of the containing space can be prevented from leaking through the inner wall of the containing space and the second airflow driving device 10, and 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.

[0132] In the present embodiment, by arranging the flow guide plate 13, and arranging one end of the flow guide plate 13 at the second airflow driving device 10 and the other end of the flow guide plate 13 inclined toward the side where the support assembly 7 is located and connected to the inner wall of the containing space, on the one hand, the heat at the top of the containing space can be prevented from leaking through the inner wall of the containing space and the second airflow driving device 10, and 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.

[0133] ​​​On the other hand, through the guiding effect of the guide plate 13, in the process of the air flow running at the top of the containing space, after contacting the guide plate 13, the air flow can enter the second air flow driving device 10 along the guide plate 13. This directional guiding can significantly improve the air flow capture efficiency and ensure that more hot air can be processed in time.

[0134] In some embodiments provided by the present application, the battery charging and discharging device comprises a temperature detection device and a control system.

[0135] The temperature detection device is used to detect at least one of the ambient temperature in the containing space and the working temperature of the battery assembly 5. The temperature detection device, the first air flow driving device 801, the second air flow driving device 10, and the third air flow driving device 11 are electrically connected with the control system.

[0136] The control system controls the power of at least one of the first air flow driving device 801, the second air flow driving device 10, and the third air flow driving device 11 based on at least one of the ambient temperature and the working temperature.

[0137] In the present embodiment, the ambient temperature in the containing space and the working temperature of the battery assembly 5 can be detected by the temperature detection device. According to the ambient temperature and the working temperature, the power of at least one of the first air flow driving device 801, the second air flow driving device 10, and the third air flow driving device 11 is controlled and adjusted, so that the ambient temperature and the working temperature are kept within a constant range. Therefore, the electrical components in the containing space and the battery assembly 5 can be in an adaptive working environment, and the stability thereof is improved.

[0138] Optionally, the temperature detection device comprises 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 with the control system.

[0139] Reference Figure 4 And Figures 12-15 As shown in the figure, 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 the first direction X. It can be understood that the batteries 502 in the battery assembly 5 are also distributed along the first direction X.

[0140] The positioning unit 2 comprises a sliding seat 201, a probe assembly 202, a driving assembly 203, and a guide assembly 204.

[0141] The two sliding seats 201 are in sliding connection with the fixed seat 1 along a first direction X. Optionally, the fixed seat 1 is provided with rails corresponding to the sliding seats 201, and the sliding seats 201 are in sliding connection with the corresponding rails.

[0142] The probe assembly 202 is in sliding connection with the two sliding seats 201 along a second direction Y. Optionally, the two sliding seats 201 are distributed on opposite sides of the probe assembly 202 and are in sliding connection with the probe assembly 202. The second direction Y intersects the first direction X, for example, the two directions are perpendicular to each other. 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 is in interface with the probe assembly 202.

[0143] The number of the driving assemblies 203 is two, and the two driving assemblies 203 are respectively arranged on the corresponding sliding seats 201. Optionally, the two driving assemblies 203 are arranged on the corresponding sliding seats 201 one by one. The two driving assemblies 203 are 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 be in interface with or separated from the battery assembly 5. The two driving assemblies 203 jointly drive the probe assembly 202 to slide.

[0144] 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.

[0145] In this embodiment, in the use process, the two driving assemblies 203 jointly drive the probe assembly 202 to move towards the battery assembly 5, and the positioning groove 2041 of the guide assembly 204 interfaces with the positioning protrusion 501 on the battery assembly 5. In the process of aligning 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 aligned with the battery pole of the battery assembly 5.

[0146] In this way, the probe assembly 202 is in sliding connection with the fixed seat 1 through the corresponding sliding seat 201, so that each probe assembly 202 can adjust the position in the direction of the arrangement of the battery 502, so that each probe assembly 202 can adapt to the position of the corresponding battery 502, and reduce the problem that the probe assembly 202 cannot accurately interface with the battery 502 due to machining error, assembly error and battery 502 expansion.

[0147] In addition, since each probe assembly 202 is driven by a 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 turn, so that after the last probe assembly 202 is extended and accurately docked, the next probe assembly 202 is extended and docked, ensuring that each probe assembly 202 has an accurate position.

[0148] In addition, the probe assembly 202 is in sliding connection with the two sliding seats 201, which can improve the stability of the sliding of the probe assembly 202. The driving assemblies 203 on the two sliding seats 201 jointly drive the probe assembly 202, so that the probe assembly 202 is balanced in force and runs stably, and the probe assembly 202 and the battery assembly 5 have sufficient plugging force.

[0149] Reference Figure 15 As shown in some embodiments provided by the present application, the guide assembly 204 includes a guide block 2042 and an elastic member.

[0150] The guide block 2042 is in sliding connection with 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 in sliding connection with the guide rail. The guide block 2042 is provided with a positioning groove 2041.

[0151] 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 in abutment with the guide hole and the probe assembly 202.

[0152] In the present embodiment, by slidingly connecting the guide block 2042 with the probe assembly 202 and driving the guide block 2042 to slide towards the battery assembly 5 by the elastic member, 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 the positioning protrusion 501 and hinders the probe assembly 202 from sliding towards the battery assembly 5.

[0153] 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.

[0154] In some embodiments provided by the present application, the guide assembly 204 further includes a guide wheel 2043. The positioning groove 2041 is a V-shaped groove, and both sides of the positioning groove 2041 are provided with a 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.

[0155] In the embodiment, the positioning groove 2041 is set as a V-shaped groove, and the V-shaped groove is used in cooperation with the V-shaped protrusion or the trapezoidal protrusion, so that the automatic centering function is provided, thereby ensuring the precision of the docking.

[0156] In addition, since the guide wheel 2043 is rotatable and the outer circumferential surface thereof 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 to rolling friction, thereby reducing the wear and improving the durability.

[0157] Referring to Figure 14 and Figure 15 In some embodiments provided by the present 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 are perpendicular to each other.

[0158] In the third direction Z, the probe assembly 202 is arranged between the two sliding seats 201. Correspondingly, the two driving assemblies 203 are arranged on the two sliding seats 201 respectively, so that the two driving assemblies 203 are distributed on the opposite sides of the probe assembly 202.

[0159] In the embodiment, the two sliding seats 201 and the two driving assemblies 203 are arranged on the 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, thereby reducing the size of the battery probe positioning mechanism in the second direction Y, improving the compactness of the battery probe positioning mechanism in the second direction Y, and further reducing the floor area occupied by the battery probe positioning mechanism.

[0160] Referring to Figure 15 In some embodiments provided by the present application, the driving assembly 203 includes a fixed end and a driving end which is in sliding connection with the fixed end.

[0161] The fixed end is connected to the side of the sliding seat 201 close to the battery assembly 5, and the driving end is arranged in a direction away from the battery assembly 5 and connected with the probe assembly 202.

[0162] In the embodiment, the stroke path of the driving assembly 203 is arranged in parallel with the stroke path of the probe assembly 202, thereby reducing the size of the battery probe positioning mechanism in the second direction Y, improving the compactness of the battery probe positioning mechanism in the second direction Y, and further reducing the floor area occupied by the battery probe positioning mechanism.

[0163] Optionally, the driving assembly 203 includes a pneumatic cylinder, an oil cylinder or an electric cylinder. Correspondingly, the driving end is arranged as a driving rod, and the fixed end is arranged as a cylinder body.

[0164] In some embodiments provided by the present application, the fixing base 1 comprises a bottom plate 101, a vertical plate 102 and a lifting plate 103.

[0165] The vertical plate 102 extends along the third direction Z and is connected to the bottom plate 101, for example, the vertical plate 102 is screwed or welded to the bottom plate 101.

[0166] 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, the two ends of the lifting plate 103 are adjustably connected to the two vertical plates 102 along the third direction Z.

[0167] The sliding base 201 is slidably connected to the lifting plate 103.

[0168] In this embodiment, the two vertical plates 102 are connected to the bottom plate 101, so that the fixing base 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.

[0169] The lifting plate 103 is adjustably positioned along the third direction Z, so that the position height of the probe assembly 202 can be adjusted by adjusting the position of the lifting plate 103 along the third direction Z, so that the position height of the probe assembly 202 is adapted to the position height of the battery pole of the battery assembly 5.

[0170] Reference Figure 14 As shown in the figure, the battery probe positioning mechanism further comprises a locking bolt 106. The vertical plate 102 is provided with a waist-shaped hole 105 extending along the third direction Z, the waist-shaped hole 105 penetrates the vertical 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.

[0171] Optionally, the vertical plate 102 is provided with a guide groove extending along the third direction Z, and the guide groove is slidably matched with the lifting plate 103. In this way, the lifting plate 103 is limited in the second direction Y through the guide groove.

[0172] Optionally, the battery probe positioning mechanism further comprises a positioning bolt 107. The positioning bolt 107 extends along the third direction Z and is threadedly connected with the vertical plate 102, for example, a threaded seat can be installed on the vertical plate 102, and the positioning bolt 107 is threadedly connected with the threaded seat.

[0173] The positioning bolt 107 is used to abut against the lifting plate 103 near one end of the bottom plate 101, and limit the lifting plate 103 in the third direction Z.

[0174] In the embodiment, the positioning bolt 107 abuts against the lifting plate 103, which can prevent the lifting plate 103 from moving downward due to vibration or gravity, and ensure the position of the lifting plate 103. The positioning bolt 107 is threadedly connected with the vertical plate 102, so that the position of the positioning bolt 107 can be adapted to the position of the lifting plate 103 by screwing the positioning bolt 107.

[0175] 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.

[0176] In some embodiments provided by the application, the lifting plate 103 is provided with a through hole 104, two sliding seats 201 are arranged on both sides of the through hole 104 in 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.

[0177] The probe assembly 202 is arranged through the through hole 104, and the end of the probe assembly 202 away from the battery assembly 5 is connected to the driving assembly 203. Specifically, the end of the probe assembly 202 away from the battery assembly 5 is connected to the driving part 2032 of the driving assembly 203.

[0178] 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 through the through hole 104, so that the size of the battery probe positioning mechanism in the third direction Z can be fully utilized, 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.

[0179] 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 to 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.

[0180] In some embodiments provided by the application, the battery probe positioning mechanism further includes a reset driving device 3 and a positioning structure 4.

[0181] The reset driving device 3 and the positioning structure 4 are both mounted on the fixed seat 1. The 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.

[0182] Since the positioning groove 2041 cooperates with the positioning protrusion 501 during the charging and discharging of the battery assembly 5, the gap between the positioning units 2 changes. In this embodiment, after the charging and discharging 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, 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.

[0183] Optionally, the reset driving device 3 is a gas cylinder, an oil cylinder or an electric cylinder.

[0184] Reference Figure 9 As shown in the drawings, 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 a charging and discharging state, the plurality of batteries 502 are arranged along the first direction X.

[0185] Further, the tray 503 is provided with a positioning protrusion 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.

[0186] Although the embodiments of the 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 application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A battery charging and discharging device, characterized by comprising: The battery charging and discharging device comprises a frame assembly (6) internally provided with a containing space for containing a battery assembly (5); a supporting assembly (7) provided in the containing space in a liftable manner and used for supporting the battery assembly (5); a charging assembly (8) provided in the containing space and used for charging the battery assembly (5); a containing box (20) provided below the supporting assembly (7), the top of the containing box (20) being provided with an opening through which the supporting assembly (7) passes, the containing box (20) being used for storing fire-fighting liquid; a lifting driving device (16) connected with the supporting assembly (7) and used for driving the supporting assembly (7) to enter and exit the containing box (20); the lifting driving device (16) comprises a flexible member (1601), a transmission wheel (1602) and a reciprocating driving mechanism (1603); the reciprocating driving mechanism (1603) comprises a fixed end and a driving end, the fixed end is connected with the frame assembly (6), the driving end is provided with the rotatable transmission wheel (1602), the frame assembly (6) is also provided with the rotatable transmission wheel (1602); one end of the flexible member (1601) is connected with the frame assembly (6), 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 supporting assembly (7). The frame assembly (6) comprises a supporting plate (6011); the supporting assembly (7) is slidably connected with the supporting plate (6011) in the vertical direction, the supporting plate (6011) is provided with a through opening (104) through which the supporting assembly (7) passes, the reciprocating driving mechanism (1603) is provided below the supporting plate (6011), and the surface of the supporting plate (6011) facing the reciprocating driving mechanism (1603) is provided with the transmission wheel (1602). The battery charging and discharging device further comprises a locking assembly (17); the locking assembly (17) is provided on the frame assembly (6) and is provided in an extendable and retractable manner, the extension and retraction direction of the locking assembly (17) intersects with the lifting direction of the supporting assembly (7), and the locking assembly (17) is used for limiting the supporting assembly (7) in the lifting direction of the supporting assembly (7) to limit the descent of the supporting assembly (7). 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 with the fire-fighting pipeline (18), the fire-fighting nozzle (19) is provided on one side of the supporting assembly (7), and the spraying opening of the fire-fighting nozzle (19) faces the direction in which the supporting assembly (7) is located. The battery charging and discharging device further comprises a control system, and the control system is electrically connected with the fire-fighting pipeline (18) and the lifting driving device (16) respectively. ​ ​ ​ ​ 2. The battery charging and discharging device according to claim 1, wherein ​ ​ 3. The battery charging and discharging device according to any one of claims 1-2, characterized in that, ​ ​ 4. The battery charging and discharging device according to any one of claims 1 to 2, wherein ​ ​ 5. The battery charging and discharging device according to claim 4, wherein ​ The control system controls the lifting driving device (16) to drive the support assembly (7) to descend and the fire-fighting pipeline (18) to open based on at least one of the ambient temperature in the containing space, the working temperature of the battery assembly (5) and smoke information in the containing space.

6. The battery charging and discharging device according to any one of claims 1 to 2, wherein The battery charging and discharging device further comprises a restraining device (14) and a positioning assembly (15); The restraining device (14) and the positioning assembly (15) are distributed on both sides of the support assembly (7), the positioning assembly (15) is arranged to be liftable, and the restraining device (14) is arranged to be retractable and used for extruding the battery assembly (5) towards the direction where the positioning assembly (15) is located.

7. The battery charging and discharging device according to claim 6, wherein The support assembly (7) comprises a lifting seat (701), a support seat (702) and an elastic member; The lifting seat (701) is slidably connected with the frame assembly (6) in the vertical direction; The support seat (702) is slidably arranged in the lifting seat (701) and used for supporting the battery assembly (5), and the slidable direction of the support seat (702) is consistent with the retractable direction of the restraining device (14); The elastic member is arranged between the lifting seat (701) and the support seat (702) and used for driving the support seat (702) to slide towards the direction close to the restraining device (14).

8. The battery charging and discharging device according to any one of claims 1 to 2, wherein The charging assembly (8) is arranged above the support assembly (7), one end of the charging assembly (8) close to the support assembly (7) is provided with a first airflow driving device (801), and the air inlet side of the first airflow driving device (801) faces the support assembly (7); The battery charging and discharging device further comprises: A heat exchange device (9) is arranged in the containing space and located on one side of the support assembly (7), and the heat exchange device (9) is used for heat exchange between airflow and refrigerant; A 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); A third airflow driving device (11) is arranged on 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).

9. The battery charging and discharging device according to claim 8, wherein The number of the support assemblies (7) is at least two, and each of the support assemblies (7) is provided with a corresponding charging assembly (8), a second airflow driving device (10) and a third airflow driving device (11); The heat exchange device (9) is arranged between two adjacent support assemblies (7), the second airflow driving device (10) of each of the two adjacent support assemblies (7) is arranged above the heat exchange device (9), and the third airflow driving device (11) of each of the two adjacent support assemblies (7) is arranged below the heat exchange device (9).

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