Battery capacity grading equipment

Abstract

The utility model relates to the field of battery production, and discloses battery capacity grading equipment. The battery capacity grading equipment comprises an equipment box body, a capacity grading device, an air duct and a heat dissipation assembly, a containing cavity is defined by the equipment box body, the capacity grading device is arranged in the containing cavity, the capacity grading device comprises a frame body assembly and a capacity grading assembly, a capacity grading space is defined by the frame body assembly, and the capacity grading assembly is arranged on the frame body assembly and used for carrying out capacity grading on batteries in the capacity grading space; the frame body assembly and the equipment box body define an air channel, the air channel communicates with the capacity grading space, the heat dissipation assembly is arranged in the containing cavity, and the heat dissipation assembly is configured to conduct heat exchange on hot air in the air channel to obtain cold air and drive the cold air into the capacity grading space. According to the design, the air duct is defined by the frame body assembly and the equipment box body, an independent pipeline does not need to be designed to serve as the air duct, the space occupied by the pipeline for the containing cavity is reduced, the size of the equipment is reduced, the equipment is suitable for more plants, and the applicability of the equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of battery production, and in particular, to a battery grading device. Background Art

[0002] During the production process of batteries, it is necessary to grade each battery, that is, to perform capacity sorting and performance screening. By charging and discharging each battery, data such as the capacity and resistance of each battery can be obtained to determine the quality of the battery. However, during the battery grading process, charging and discharging the battery will cause the temperature of the battery to rise, generating a large amount of heat inside the battery, resulting in an increase in the temperature of the accommodation cavity of the battery grading device. If the temperature of the accommodation cavity of the battery grading device is not controlled, it will cause damage to the battery.

[0003] In the related art, in order to achieve uniform temperature control of the accommodation cavity of the battery grading device, it is necessary to separately set pipes in the accommodation cavity to form an air duct for air to circulate in the pipes and the accommodation cavity to cool the accommodation cavity. However, separately setting pipes will occupy the space of the accommodation cavity, resulting in a relatively large overall volume of the battery grading device. Utility Model Content

[0004] The embodiment of the present application discloses a battery grading device, and the design of its air duct can reduce the overall volume of the device, meet the size requirements of more factories for the device, and improve the applicability of the device.

[0005] To achieve the above object, the embodiment of the present application discloses a battery grading device, including:

[0006] An equipment box body, the equipment box body encloses to form an accommodation cavity;

[0007] A grading device, the grading device is arranged in the accommodation cavity, the grading device includes a frame assembly and a grading assembly, the frame assembly encloses to form a grading space, and the grading assembly is arranged on the frame assembly for grading the batteries in the grading space;

[0008] An air duct, the frame assembly and the equipment box body enclose to form the air duct, and the air duct is communicated with the grading space; and,

[0009] A heat dissipation component, the heat dissipation component is arranged in the accommodation cavity, and the heat dissipation component is configured to perform heat exchange on the hot air in the air duct to obtain cold air and drive the cold air into the grading space.

[0010] As an alternative embodiment, the air duct includes a horizontal air duct and a vertical air duct that communicate with each other. The horizontal air duct is disposed above the binning space, and the vertical air duct is disposed on one side or multiple sides of the binning space along a first horizontal direction. The horizontal air duct and the vertical air duct are used to guide the flow of hot air.

[0011] As an alternative embodiment, there are two vertical air ducts, which are respectively located on both sides of the binning space along the first horizontal direction.

[0012] As an alternative embodiment, the frame assembly includes:

[0013] A frame that encloses to form the binning space, and the binning assembly is disposed on the frame;

[0014] A first wind baffle connected between the frame and the top wall of the equipment box body; and,

[0015] A second wind baffle connected between the frame and the top wall and opposite to the first wind baffle along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction;

[0016] The frame, the first wind baffle, the top wall of the equipment box body, and the second wind baffle jointly enclose to form the horizontal air duct.

[0017] As an alternative embodiment, the frame assembly further includes:

[0018] A third wind baffle connected between the frame and the side wall of the equipment box body; and,

[0019] A fourth wind baffle connected between the frame and the side wall and opposite to the third wind baffle along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction; and,

[0020] A fifth wind baffle connected between the frame and the side wall and located below the third wind baffle and the fourth wind baffle, and the fifth wind baffle is perpendicular to the third wind baffle and the fourth wind baffle respectively;

[0021] The side wall, the third wind baffle, the fourth wind baffle, and the fifth wind baffle jointly enclose to form the vertical air duct.

[0022] As an alternative embodiment, the frame includes:

[0023] A first frame body;

[0024] A second housing, which is disposed opposite to the first housing at an interval in the vertical direction. The second housing and the first housing enclose to form the binning space, and the binning assembly is disposed on the first housing.

[0025] A movable housing, which is located between the first housing and the second housing and is movably disposed along the vertical direction. The movable housing is used for placing the battery, and when the movable housing moves back and forth along the vertical direction, it can drive the battery to dock with or disengage from the binning assembly.

[0026] As an optional implementation manner, a connecting plate is disposed between the first housing and the movable housing. When the movable housing drives the battery to dock with the binning assembly along the vertical direction, the side wall, the third wind baffle, the fourth wind baffle, the fifth wind baffle and the connecting plate jointly enclose to form the vertical air duct.

[0027] As an optional implementation manner, the air duct includes a first opening and a second opening, both of which are communicated with the binning space, and the second opening faces the battery.

[0028] The heat dissipation assembly includes a heat exchange element, which is located in the air duct and is disposed close to the second opening. The heat exchange element is used for performing heat exchange on the hot air in the air duct to obtain the cold air.

[0029] As an optional implementation manner, the first opening is located above the second opening in the vertical direction.

[0030] As an optional implementation manner, the heat dissipation assembly further includes a power member, which is used for driving the cold air into the binning space.

[0031] As an optional implementation manner, the power member includes:

[0032] A first power member, which is disposed at the first opening and is used for driving the cold air into the binning space.

[0033] and / or,

[0034] A second power member, which is disposed at the second opening and is used for driving the cold air into the binning space.

[0035] and / or,

[0036] A third power member, which is disposed below the frame assembly and the air outlet of the third power member faces the battery, and is used for driving the cold air into the binning space.

[0037] As an alternative embodiment, at least a part of the heat dissipation component extends into the grading space.

[0038] Compared with the prior art, the beneficial effects of the present application at least include:

[0039] In the present application, since the equipment box body encloses to form a containing cavity, the grading device is arranged in the containing cavity. The grading device includes a frame assembly and a grading component. The frame assembly encloses to form a grading space, and the grading component is arranged in the grading space for grading the batteries. The frame assembly and the equipment box body enclose to form an air duct, and the air duct is used to guide the air flow. The heat dissipation component is arranged in the containing cavity, and the heat dissipation component is configured to perform heat exchange on the hot air in the air duct and send the cold air after heat exchange back into the grading space. Therefore, the air flow can be guided through the air duct formed by the frame assembly and the equipment box body, without additionally arranging a pipeline as the air duct to guide the air flow. That is, the setting of the pipeline is cancelled. Therefore, the occupation of the hole space of the containing cavity by the pipeline is reduced, and further the overall volume of the equipment is smaller, so as to meet the requirements of the workshop for the volume size of the equipment. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0041] Figure 1 Structural schematic diagram of the battery grading equipment provided by the embodiment of the present application;

[0042] Figure 2 Isometric view of the battery grading equipment (omitting the equipment box body) provided by the embodiment of the present application;

[0043] Figure 3 Front view of the battery grading equipment provided by the embodiment of the present application in the pressed state;

[0044] Figure 4 Side view of the battery grading equipment (omitting the equipment box body) provided by the embodiment of the present application;

[0045] Figure 5 Front view of the battery grading equipment provided by the embodiment of the present application in the non-pressed state;

[0046] Figure 6 Internal air flow schematic diagram of the battery grading equipment provided by the embodiment of the present application;

[0047] Figure 7This is a top view of the battery grading equipment (the equipment box is omitted) provided by the embodiment of the present application.

[0048] Explanation of reference numerals:

[0049] 100 - Battery grading equipment;

[0050] 1 - Equipment box; 10 - Accommodating cavity;

[0051] 2 - Grading device; 21 - Frame assembly; 210 - Grading space; 211 - Frame; 2111 - First frame; 2112 - Second frame; 2113 - Movable frame; 2114 - Guide rail; 212 - First wind baffle; 213 - Second wind baffle; 214 - Third wind baffle; 215 - Fourth wind baffle; 216 - Fifth wind baffle; 217 - Connecting plate; 22 - Grading component;

[0052] 3 - Air duct; 31 - Horizontal air duct; 32 - Vertical air duct; 3a - First opening; 3b - Second opening;

[0053] 4 - Heat dissipation component; 41 - Power component; 411 - First power component; 412 - Second power component; 413 - Third power component; 42 - Heat exchange element;

[0054] X - First horizontal direction; Y - Second horizontal direction. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0056] In the present application, terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0057] Moreover, in addition to being able to represent the orientation or position relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific situation.

[0058] In addition, the terms "arranged", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] In addition, the terms "first", "second", "third", "fourth", "fifth", etc. are mainly used to distinguish different devices, components, or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components, or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0060] The technical solutions of this application will be further described below in conjunction with specific embodiments and the accompanying drawings.

[0061] Please refer to Figures 1 to 3 , Figure 1 , which is a schematic structural diagram of the battery grading device 100 provided by the embodiment of this application. Figure 2 , which is a positive isometric view of the battery grading device 100 (the device box 1 is omitted) provided by the embodiment of this application. Figure 3 , which is a front view of the battery grading device 100 provided by the embodiment of this application in a pressed state. An embodiment of this application discloses a battery grading device 100, which is used for capacity sorting and performance screening of batteries. Specifically, the battery grading device 100 includes a device box 1, a grading device 2, an air duct 3, and a heat dissipation component 4. Among them, the device box 1 encloses a containing cavity 10, the grading device 2 is arranged in the containing cavity 10, the grading device 2 includes a frame assembly 21 and a grading component 22, the frame assembly 21 encloses a grading space 210, the grading component 22 is arranged on the frame assembly 21 and is used for grading the battery A in the grading space 210. The frame assembly 21 and the device box 1 enclose to form an air duct 3, the air duct 3 is communicated with the grading space 210, the heat dissipation component 4 is arranged in the containing cavity 10, and the heat dissipation component 4 is used for performing heat exchange on the hot air in the air duct 3 to obtain cold air and driving the cold air into the grading space 210.

[0062] In this embodiment, when grading the battery A through the battery grading device 100, first, the battery A can be placed in the grading space 210, and then, the battery A can be graded through the grading component 22.

[0063] When the battery A is capacitively divided by the capacitance-dividing component 22, the battery A will release a large amount of heat, making the capacitance-dividing space 210 filled with hot air. To avoid the influence of this heat on the normal capacitance division, the heat dissipation component 4 can be used to cool the capacitance-dividing component 22 and the battery A, so that the normal capacitance division can be ensured.

[0064] Among them, the heat dissipation component 4 cools the capacitance-dividing component 22 and the battery A by performing heat exchange on the hot air entering the air duct 3 from the capacitance-dividing space 210 to obtain cold air, and then driving the cold air into the capacitance-dividing space 210. And the air duct 3 is formed by enclosing the equipment box body 1 and the frame component 21. That is to say, the air duct 3 of the battery capacitance-dividing device 100 is formed by enclosing the equipment box body 1 and the frame component 21 of its own structure, rather than a separate pipeline structure in the battery capacitance-dividing device 100 being used as the air duct 3. Therefore, the air duct 3 is formed by enclosing the equipment box body 1 and the frame component 21, so that the battery capacitance-dividing device 100 does not need to consider the space occupied by the pipeline when designing the size of the accommodation cavity 10. In this way, the accommodation cavity 10 in the battery capacitance-dividing device 100 can be set relatively small, and then the volume of the entire battery capacitance-dividing device 100 can be designed relatively small, meeting the requirements of the miniaturized design of the battery capacitance-dividing device 100.

[0065] It should be noted that the above battery A can be placed in the capacitance-dividing space 210 through a tray, or can be placed in the capacitance-dividing space 210 in other ways, and this embodiment does not make specific limitations on this.

[0066] Furthermore, as Figure 3 shown, the air duct 3 includes a horizontally connected horizontal air duct 31 and a vertical air duct 32. The horizontal air duct 31 is arranged above the capacitance-dividing space 210, and the vertical air duct 32 is arranged on any one side or multiple sides of the capacitance-dividing space 210 along the first horizontal direction X. The horizontal air duct 31 and the vertical air duct 32 are used to guide the flow of hot air. That is to say, the air duct 3 is composed of the horizontal air duct 31 and the vertical air duct 32. The horizontal air duct 31 is located above the capacitance-dividing space 210, while the vertical air duct 32 is located on one side or multiple sides of the capacitance-dividing space 210 along the first horizontal direction X.

[0067] Among them, the first horizontal direction X is the horizontal direction, that is, as Figure 2 shown, the direction from left to right or from right to left inside. Therefore, the vertical air duct 32 being arranged on any one side or multiple sides of the capacitance-dividing space 210 along the first horizontal direction X means that the vertical air duct 32 is arranged on one side of the capacitance-dividing space 210 along the horizontal direction, or the vertical air duct 32 is arranged on two opposite sides of the capacitance-dividing space 210 along the horizontal direction.

[0068] In this way, the horizontal air duct 31 is arranged above the capacitance-dividing space 210, which can effectively guide the hot air generated in the capacitance-dividing space 210 from the heat source to a wider area. The vertical air duct 32 is arranged on any one side or multiple sides of the capacitance-dividing space 210 along the first horizontal direction X. This layout enables the hot air to flow along the vertical direction, contributing to a more uniform temperature distribution. Through the mutual connection of the horizontal air duct 31 and the vertical air duct 32, the hot air forms a circulating flow in the air duct, which can improve the heat exchange efficiency of the heat dissipation component 4. At the same time, the vertical air duct 32 can be arranged on any one side or multiple sides of the capacitance-dividing space 210. This flexible layout enables the air duct to adapt to different installation environments and space limitations, improving the adaptability and flexibility of the device.

[0069] Optionally, there are two vertical air ducts 32, and the two vertical air ducts 32 are respectively located on both sides of the capacitance-dividing space along the first horizontal direction X. In this way, the two vertical air ducts 32 being respectively located on both sides of the capacitance-dividing space 210 helps to reduce the dead corners and accumulation of hot air in the capacitance-dividing space 210, enabling the hot air to flow from the capacitance-dividing space 210 into the vertical air ducts 32, so as to improve the heat exchange efficiency of the heat dissipation component 4. At the same time, through the synergistic effect of the two vertical air ducts 32, it can ensure a more uniform temperature distribution in the capacitance-dividing space 210, and can also increase the discharge channels of the hot air, improving the heat dissipation effect. This helps to reduce the battery performance differences caused by temperature differences, and improves the accuracy and consistency of battery capacitance division.

[0070] In some embodiments, in combination with Figure 2 and Figure 3 , the frame assembly 21 includes a frame 211, a first wind baffle 212 and a second wind baffle 213. The frame 211 encloses to form the above-mentioned capacitance-dividing space 210. The capacitance-dividing component 22 is arranged on the frame 211. The first wind baffle 212 is connected between the frame 211 and the top wall of the equipment box body 1. The second wind baffle 213 is connected between the frame 211 and the top wall of the equipment box body 1 and is opposite to the first wind baffle 212 in the second horizontal direction Y. The frame 211, the first wind baffle 212, the top wall of the equipment box body and the second wind baffle 213 jointly enclose to form the horizontal air duct 31. That is to say, the horizontal air duct 31 refers to the space enclosed between the frame 211, the first wind baffle 212, the second wind baffle 213 opposite to the first wind baffle 212 in the second horizontal direction Y and the top wall of the equipment box body 1. Among them, the second horizontal direction Y is perpendicular to the first horizontal direction X.

[0071] In this way, the frame body 211 encloses to form a grading and capacitance space 210, and the first wind baffle 212 and the second wind baffle 213 together with the top wall of the equipment box body 1 and the frame body 211 enclose to form a horizontal air duct 31. By arranging the first wind baffle 212 and the second wind baffle 213, the hot air can be effectively guided to flow in the horizontal air duct 31, reducing the battery performance difference caused by temperature difference, and helping to improve the accuracy and consistency of battery grading and capacitance. At the same time, the frame body 211, the wind baffle and the top wall of the equipment box body 1 together constitute a stable air duct structure, which can withstand a certain amount of mechanical stress and thermal stress, ensuring the stability of the equipment during long-term operation.

[0072] Further, referring to Figures 2 to 4 , the frame assembly 21 further includes a third wind baffle 214, a fourth wind baffle 215 and a fifth wind baffle 216. The third wind baffle 214 is connected between the frame body 211 and the side wall of the equipment box body. The fourth wind baffle 215 is connected between the frame body 211 and the side wall of the equipment box body 1 and is opposite to the third wind baffle 214 along the second horizontal direction Y. The fifth wind baffle 216 is connected between the frame body 211 and the side wall of the equipment box body 1 and is located below the third wind baffle 214 and the fourth wind baffle 215, and the fifth wind baffle 216 is perpendicular to the third wind baffle 214 and the fourth wind baffle 215. The side wall of the equipment box body 1, the third wind baffle 214, the fourth wind baffle 215 and the fifth wind baffle 216 together enclose to form a vertical air duct 32. That is to say, the vertical air duct 32 refers to the space enclosed by the side wall of the equipment box body 1 and the third wind baffle 214, the fourth wind baffle 215 and the fifth wind baffle 216.

[0073] In this way, the vertical air duct 32 complements the horizontal air duct 31. The vertical air duct 32 helps to better distribute and circulate the hot air in the vertical direction, further improving the air flow efficiency in the grading and capacitance space 210 inside the equipment. Through the vertical air duct 32, the hot air can effectively exchange heat with the heat dissipation component 4, thereby reducing the internal temperature of the grading and capacitance space 210, helping to reduce the heat island effect formed by local high temperature inside the equipment, improving the uniformity of the overall temperature distribution, keeping the battery grading and capacitance equipment 100 within a suitable working temperature range, and thus improving the accuracy and consistency of battery grading and capacitance. And the vertical air duct 32 is jointly enclosed by the side wall of the equipment box body 1, the third wind baffle 214, the fourth wind baffle 215 and the fifth wind baffle 216, so there is no need to consider designing a separate placement space for the vertical air duct 32. In this way, the length of the battery grading and capacitance equipment 100 along the first horizontal direction X can be designed to be smaller, and then the volume of the entire equipment can be smaller, reducing the space occupied by the equipment in the factory building.

[0074] In some embodiments, such as Figure 2 and Figure 4As shown, the frame 211 includes a first frame body 2111, a second frame body 2112 and a movable frame body 2113. The second frame body 2112 and the first frame body 2111 are arranged opposite to each other at intervals in the vertical direction ( Figure 2 in the Z-axis direction in the figure). The second frame body 2112 and the first frame body 2111 enclose a grading and capacitance-measuring space 210. The grading and capacitance-measuring assembly 22 is arranged in the first frame body 2111. The movable frame body 2113 is located between the first frame body 2111 and the second frame body 2112 and is arranged to be movable in the vertical direction. The movable frame body 2113 is used to place the battery A. When the movable frame body 2113 moves back and forth in the vertical direction, it can drive the battery A to dock with or separate from the grading and capacitance-measuring assembly 22.

[0075] Since the grading and capacitance-measuring assembly 22 is arranged in the first frame body 2111 and the movable frame body 2113 is located between the first frame body 2111 and the second frame body 2112 and is arranged to be movable in the vertical direction, therefore, when the battery A is placed in the movable frame body 2113 and the movable frame body 2113 moves in the vertical direction towards the direction close to the first frame body 2111, it can drive the battery A to move in the vertical direction towards the direction close to the grading and capacitance-measuring assembly 22, and then the battery A can be docked with the grading and capacitance-measuring assembly 22. When the battery A is docked with the grading and capacitance-measuring assembly 22, the grading and capacitance-measuring assembly 22 can perform grading and capacitance measurement on the battery A.

[0076] When the movable frame body 2113 moves in the vertical direction towards the direction away from the first frame body 2111, it can drive the battery A to move in the vertical direction towards the direction away from the grading and capacitance-measuring assembly 22, and then the battery A can be separated from the grading and capacitance-measuring assembly 22. When the battery A is separated from the grading and capacitance-measuring assembly 22, the grading and capacitance measurement of the battery A can be stopped.

[0077] As Figure 5 shown, when the battery grading and capacitance-measuring device 100 is in an un-pressed state, the movable frame body 2113 is far away from the grading and capacitance-measuring assembly 22. At this time, a tray is placed on the movable frame body 2113, and the battery A to be graded and capacitance-measured is placed on the tray to prepare for grading and capacitance measurement of the battery A. As Figure 3 shown, the battery grading and capacitance-measuring device 100 is in a pressed state. At this time, the movable frame body 2113 has driven the battery A to dock successfully with the grading and capacitance-measuring assembly 22 in the vertical direction, and starts to perform grading and capacitance measurement on the battery A. After the grading and capacitance measurement is completed, the movable frame body 2113 drives the battery A to separate from the grading and capacitance-measuring assembly 22, and then moves in the vertical direction to return to the un-pressed state as Figure 5 shown, and the graded battery A is taken off and a new set of batteries is replaced for grading and capacitance measurement.

[0078] It can be seen that by making the movable frame 2113 located between the first frame 2111 and the second frame 2112 and being vertically movably arranged, when the battery A is placed on the movable frame 2113, by making the movable frame 2113 vertically movably arranged, the purpose of driving the battery A to dock or disengage from the grading component 22 can be achieved. Furthermore, the purpose of starting or stopping the grading operation of the grading component 22 on the battery A can be achieved. In this way, by controlling the vertical reciprocating movement of the movable frame 2113, the operation of starting or stopping the grading of the battery can be realized, which is very flexible. At the same time, the vertical reciprocating movement of the movable frame 2113 can quickly switch the battery A from one grading state to another, or disengage the battery A from the grading component 22 for subsequent processing, which helps to shorten the grading cycle and improve the overall production efficiency.

[0079] Among them, there are various ways to achieve the vertical reciprocating movement of the movable frame 2113. In one possible implementation, referring to Figure 3 , a guide rail 2114 extending in the vertical direction can be provided between the first frame 2111 and the second frame 2112. The movable frame 2113 can be vertically slidably arranged on the guide rail 2114. A driving member connected to the movable frame 2113 can be provided on the second frame 2112. The driving member can drive the movable frame 2113 to reciprocally slide along the guide rail 2114, and thus the purpose of the vertical reciprocating movement of the movable frame 2113 can be achieved.

[0080] The above-mentioned movable frame 2113 can be vertically slidably arranged on the guide rail 2114 through a slider, or can be vertically slidably arranged on the guide rail 2114 by other means. This embodiment does not limit this. The above-mentioned driving member can include, but is not limited to, a cylinder or an electric cylinder, etc. This embodiment does not limit this. In addition, the above-mentioned grading component 22 can be docked with the battery A through a probe, or can be docked with the battery A through other possible structures. This embodiment does not limit this.

[0081] Optionally, in combination with Figure 2 and Figure 4, a connecting plate 217 is provided between the first frame body 2111 and the movable frame body 2113. When the movable frame body 2113 drives the battery A to dock with the grading and capacitance component 22 in the vertical direction, the side wall of the equipment box body 1, the third wind baffle 214, the fourth wind baffle 215, the fifth wind baffle 216 and the connecting plate 217 jointly enclose a vertical air duct 32. In this way, the connecting plate 217 between the first frame body 2111 and the movable frame body 2113 ensures the structural integrity of the vertical air duct 32, can ensure that air circulates under the guidance of the vertical air duct 32, and prevents part of the hot air from flowing into the grading space 210 between the first frame body 2111 and the movable frame body 2113 after flowing from the horizontal air duct 31 into the vertical air duct 32, unable to ensure that all the hot air is diverted to the heat dissipation component 4 for heat exchange, thereby ensuring the heat exchange efficiency and making the cooling effect on the battery A and the grading and capacitance component 22 better.

[0082] In some embodiments, in combination with Figure 2 and Figure 6 , the air duct 3 includes a first opening 3a and a second opening 3b. Both the first opening 3a and the second opening 3b are communicated with the grading space 210. The second opening 3b faces the battery. The heat dissipation component 4 includes a heat exchange element 42. The heat exchange element 42 is located in the air duct 3 and is arranged close to the second opening 3b. The heat exchange element 42 is used for heat-exchanging the hot air in the air duct 3 to obtain cold air. Since the air duct 3 is communicated with the frame assembly 21 and both the first opening 3a and the second opening 3b are communicated with the grading space 210, the air flow in the grading space 210 circulates successively through the air duct 3, the heat exchange element 42 and the grading space 210. In this way, the design of the first opening 3a and the second opening 3b makes the gas flow in the air duct 3 have a clear directionality. The hot air enters the air duct through the first opening 3a. After passing through the heat exchange element 42, the cold air blows towards the battery A from the second opening 3b, forming an effective heat dissipation cycle. The heat exchange element 42 is arranged close to the second opening 3b, can quickly heat-exchange the hot air in the air duct, convert it into cold air and directly blow it towards the battery. This design improves the heat exchange efficiency and accelerates the heat dissipation process of the battery A.

[0083] Furthermore, the first opening 3a is located above the second opening 3b in the vertical direction. Since the air density of the hot air is smaller than that of the cold air and is easy to float above the cold air, by making the first opening 3a located above the second opening 3b in the vertical direction, the hot air can be more easily gathered near the first opening 3a, which is beneficial for the hot air to enter the air duct 3 through the first opening 3a, provides convenience for the circular flow of air in the air duct 3, the heat exchange element 42 and the grading space 210, makes the speed of the circular flow of air faster, and thus makes the cooling effect on the battery A and the grading and capacitance component 22 better.

[0084] Such asFigure 6 As shown, when the air flows into the air duct 3 through the first opening 3a, the heat exchange element 42 can cool the hot air, so that the air flowing out through the second opening 3b is cold air ( Figure 6 as shown by the solid arrows in the figure). Then, the cold air can flow through the battery A in the partitioning space 210. When the cold air flows through the battery A, it will absorb the heat of the battery. Therefore, the cold air will become hot air after flowing through the battery A ( Figure 6 as shown by the dashed arrows in the figure). This hot air then enters the air duct 3 through the first opening 3a. When the hot air flows through the heat exchange element 42, the heat exchange element 42 can cool the hot air into cold air and then re-enter the partitioning space 210 through the second opening 3b, and circulates in this way.

[0085] In some embodiments, as Figure 3 shown, the heat dissipation assembly 4 further includes a power member 41, and the power member 41 is used to drive the cold air into the partitioning space 210. Under the driving action of the power member 41, the heat dissipation assembly 4 can absorb the hot air in the partitioning space 210 and release the cold air into the partitioning space 210. Therefore, the purpose of cooling the partitioning space 210 can be achieved, and further the purpose of cooling the partitioning assembly 22 and the battery A can be achieved.

[0086] It should be noted that the power member 41 can be a fan. Of course, the power member 41 can also be other possible structures, as long as it can achieve the purpose of driving the air to circulate. This embodiment does not limit this. When the power member 41 is a fan, the rotation of the fan can achieve the purpose of driving the air to circulate in the air duct 3, the heat exchange element 42 and the partitioning space 210. Since the structure of the fan is simple and the cost is low, the structure of the power member 41 can be simplified and the cost of the power member 41 can be reduced.

[0087] In some embodiments, in combination with Figure 3 and Figure 7, there are multiple power components 41. The first power component 411 among the multiple power components 41 is arranged at the first opening 3a, the second power component 412 is arranged at the second opening 3b, and the third power component 413 is arranged below the frame assembly 21 and the air outlet of the third power component 413 faces the battery A. In this way, arranging the first power component 411 at the first opening 3a is beneficial to driving the hot air in the grading space 210 into the air duct 3, accelerating the heat exchange rate of the hot air entering the air duct 3 through the heat exchange element 42. Arranging the second power component 412 at the second opening 3b is beneficial to accelerating the driving of the cold air into the grading space 210, accelerating the heat dissipation speed of the grading space 210, improving the air fluidity in the grading space 210, reducing the temperature dead angle, and enabling the battery pack to be evenly cooled. The third power component 413 blows cold air to the battery A from the bottom. Utilizing the principle that hot air rises, it accelerates the rise of the hot air in the grading space 210 and enters the air duct 3 from the first opening 3a, forming an effective circulating heat dissipation. Moreover, blowing air from the bottom can directly act on the bottom of the battery A, which is one of the areas where heat generation of the battery is more concentrated, helping to quickly remove heat and improve the heat dissipation efficiency. In addition, arranging the third power component 413 below the frame assembly 21 can save space, make the overall design more compact, and at the same time does not affect the placement of the battery A.

[0088] It should be noted that the above-described setting method in which the power components 41 exist simultaneously is only a possible setting method shown in this embodiment, and the heat dissipation effect shown in this embodiment is relatively good. In other setting methods, the power component 41 can also be arranged only at the first opening 3a or the second opening 3b, or only below the frame assembly 21. This embodiment does not make specific limitations on the setting of the power component 41.

[0089] In some embodiments, as Figure 3 shown, at least part of the heat dissipation assembly 4 extends into the grading space 210. That is to say, at least part of the structure of the heat dissipation assembly 4 extends into the interior of the grading device 2. Therefore, the grading device 2 will accommodate part or all of the structure of the heat dissipation assembly 4, so that the volume occupied by the heat dissipation assembly 4 in the accommodation cavity 10 outside the frame space 210 will be reduced or will not directly occupy the volume of the accommodation cavity 10 outside the grading space 210. In this way, the equipment box body 1 does not need to reserve a large space to accommodate the heat dissipation assembly 4, so that the volume of the equipment box body 1 can be designed to be relatively small, and further the volume of the entire battery grading equipment 100 can be designed to be relatively small, further meeting the requirements of the miniaturized design of the battery grading equipment 100.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery grading device (100), characterized in that, Including: An equipment box body (1), and the equipment box body (1) encloses to form a containing cavity (10); A sub - capacity device (2), the sub - capacity device (2) is arranged in the containing cavity (10), the sub - capacity device (2) includes a frame assembly (21) and a sub - capacity assembly (22), the frame assembly (21) encloses to form a sub - capacity space (210), and the sub - capacity assembly (22) is arranged on the frame assembly (21) for performing sub - capacity on the battery (A) in the sub - capacity space (210); An air duct (3), the frame assembly (21) and the equipment box body (1) enclose to form the air duct (3), and the air duct (3) is communicated with the sub - capacity space (210); and, A heat dissipation assembly (4), the heat dissipation assembly (4) is arranged in the containing cavity (10), and the heat dissipation assembly (4) is configured to perform heat exchange on the hot air in the air duct (3) to obtain cold air and drive the cold air into the sub - capacity space (210).

2. The battery grading equipment (100) according to claim 1, characterized in that, The air duct (3) includes a horizontally - arranged air duct (31) and a vertically - arranged air duct (32) that are communicated with each other. The horizontally - arranged air duct (31) is arranged above the sub - capacity space (210), and the vertically - arranged air duct (32) is arranged on one side or multiple sides of the sub - capacity space (210) along a first horizontal direction (X). The horizontally - arranged air duct (31) and the vertically - arranged air duct (32) are used to guide the flow of hot air.

3. The battery grading equipment (100) according to claim 2, characterized in that, There are two vertically - arranged air ducts (32), and they are respectively located on both sides of the sub - capacity space (210) along the first horizontal direction (X).

4. The battery grading equipment (100) according to claim 2, characterized in that, The frame assembly (21) includes: A frame (211), the frame (211) encloses to form the sub - capacity space (210), and the sub - capacity assembly (22) is arranged on the frame (211); A first wind - blocking plate (212), the first wind - blocking plate (212) is connected between the frame (211) and the top wall of the equipment box body (1); and, A second wind - blocking plate (213), the second wind - blocking plate (213) is connected between the frame (211) and the top wall and is opposite to the first wind - blocking plate along a second horizontal direction (Y), and the second horizontal direction (Y) is perpendicular to the first horizontal direction (X); The frame (211), the first wind - blocking plate (212), the top wall of the equipment box body (1), and the second wind - blocking plate (213) jointly enclose to form the horizontally - arranged air duct (31).

5. The battery grading equipment (100) according to claim 2, wherein, The frame assembly (21) further includes: A third wind - blocking plate (214), the third wind - blocking plate (214) is connected between the frame (211) and the side wall of the equipment box body (1); A fourth wind - blocking plate (215), the fourth wind - blocking plate (215) is connected between the frame (211) and the side wall and is opposite to the third wind - blocking plate (214) along the second horizontal direction (Y), and the second horizontal direction (Y) is perpendicular to the first horizontal direction (X); and, The fifth wind deflector (216), the fifth wind deflector (216) is connected between the frame body (211) and the side wall and is located below the third wind deflector (214) and the fourth wind deflector (215), and the fifth wind deflector (216) is perpendicular to the third wind deflector (214) and the fourth wind deflector (215) respectively; The side wall, the third wind deflector (214), the fourth wind deflector (215) and the fifth wind deflector (216) jointly enclose to form the vertical air duct (32).

6. The battery grading equipment (100) according to claim 5, characterized in that, The frame body (211) includes: The first frame body (2111); The second frame body (2112), the second frame body (2112) is arranged at intervals relative to the first frame body (2111) in the vertical direction, the second frame body (2112) and the first frame body (2111) enclose to form the separation space (210), and the separation component (22) is arranged on the first frame body (2111); The movable frame body (2113), the movable frame body (2113) is located between the first frame body (2111) and the second frame body (2112) and is arranged to be movable in the vertical direction, the movable frame body (2113) is used for placing the battery (A), and when the movable frame body (2113) moves back and forth in the vertical direction, it can drive the battery (A) to be docked with or separated from the separation component (22).

7. The battery grading equipment (100) according to claim 6, characterized in that, A connecting plate (217) is arranged between the first frame body (2111) and the movable frame body (2113). When the movable frame body (2113) drives the battery (A) to be docked with the separation component (22) in the vertical direction, the side wall, the third wind deflector (214), the fourth wind deflector (215), the fifth wind deflector (216) and the connecting plate (217) jointly enclose to form the vertical air duct (32).

8. The battery grading equipment (100) according to any one of claims 1-7, characterized in that, The air duct (3) includes a first opening (3a) and a second opening (3b), both the first opening (3a) and the second opening (3b) are communicated with the separation space (210), and the second opening (3b) faces the battery (A); The heat dissipation component (4) includes a heat exchange element (42), the heat exchange element (42) is located in the air duct (3) and is arranged close to the second opening (3b), and the heat exchange element (42) is used for performing heat exchange on the hot air in the air duct (3) to obtain the cold air.

9. The battery grading equipment (100) according to claim 8, wherein, The first opening (3a) is located above the second opening (3b) in the vertical direction.

10. The battery grading equipment (100) according to claim 8, characterized in that, The heat dissipation component (4) further includes a power member (41), and the power member (41) is used for driving the cold air into the separation space (210).

11. The battery grading equipment (100) according to claim 10, characterized in that, The power member (41) includes: The first power member (411), the first power member (411) is arranged at the first opening (3a) and is used for driving the cold air into the separation space (210); And / or, A second power component (412) is arranged at the second opening (3b) and is used for driving the cold air into the grading and capacitance space (210); and / or A third power component (413) is arranged below the frame assembly (21), and an air outlet of the third power component (413) faces the battery (A), and is used for driving the cold air into the grading and capacitance space (210).

12. The battery grading equipment (100) according to any one of claims 1-7 or 9-11, characterized in that, At least a part of the heat dissipation component (4) extends into the grading and capacitance space (210).

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