Charging and discharging device and system for battery

Abstract

Provided are a charging and discharging device (100) and system (200) for a battery. The charging and discharging device (100) comprises: a rack assembly (22) and a partition mechanism (21) disposed on the rack assembly (22); and a power module (30) connected to the rack assembly (22), wherein a battery can also be disposed on the rack assembly (22); the power module (30) is located on a first side of the partition mechanism (21), and the battery is located on a second side of the partition mechanism (21); the partition mechanism (21) is provided with at least one opening (A) that can be opened or closed; and at least a portion of the power module (30) is configured to be movable from the first side to the second side when the opening (A) is opened. By means of arranging the power module (30) and the battery on two sides of the partition mechanism (21), thermal isolation between the power module (30) and the battery can be realized, thereby preventing the battery from being subjected to thermal interference. Furthermore, the opening (A) that can be opened or closed is provided in the partition mechanism (21), thereby making the access, installation, replacement, or maintenance of the power module (30) more convenient.

Description

Charging and discharging device and system for battery

[0001] The present application claims priority to the Chinese patent application No. 202421137365.4, filed on May 22, 2024, and entitled “Charging and discharging device and system for battery”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to, but are not limited to, a charging and discharging device and system for battery. BACKGROUND

[0003] In the field of battery detection or storage, the capacity and electrochemical performance of the battery will be affected by the working temperature thereof. Excessive high or low working temperature will lead to the degradation of the performance of the battery. When storing or testing, the consistency of the working temperature needs to be controlled to improve the reliability and stability of the detection or storage.

[0004] In the existing charging and discharging device, the battery and the power module are usually in the same cavity. However, the power module usually generates high heat, which easily causes negative effects on the working temperature of the battery, so that the temperature of the battery cannot be maintained within a relatively constant temperature range, resulting in the degradation of the electrochemical performance or capacity of the battery. TECHNICAL SOLUTION

[0005] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0006] According to an aspect of the present application, a charging and discharging device for battery is provided, comprising: a rack assembly and a partition mechanism arranged on the rack assembly; a power module connected to the rack assembly; wherein the rack assembly can further be arranged with a battery; the power module is located on a first side of the partition mechanism, and the battery is located on a second side of the partition mechanism; the partition mechanism is provided with at least one opening capable of being opened or closed, and at least part of the power module is arranged to be capable of moving from the first side to the second side when the opening is opened.

[0007] Optionally, the partition mechanism comprises: a partition assembly provided with the opening; and an opening and closing structure movably connected to the partition assembly.

[0008] Optionally, the partition assembly comprises a partition and a frame connected to the partition; the opening is arranged on the partition, and the opening and closing structure is slidingly connected to the frame to open or close the opening.

[0009] Optionally, the opening and closing structure comprises a cover plate and a fan arranged on the cover plate; the cover plate and the opening are matched with each other to be capable of opening or closing the opening, and the fan is capable of unidirectionally conveying air flow from the second side to the first side.

[0010] Optionally, the power module comprises a first conversion module and a second conversion module capable of being plugged into the first conversion module; the first conversion module is connected to the rack assembly, and the second conversion module is arranged to be capable of moving from the first side to the second side when the opening is opened.

[0011] Optionally, the second conversion module is connected to the rack assembly.

[0012] Optionally, the first conversion module comprises a first connection terminal, and the second conversion module comprises a second connection terminal, and the second conversion module is plugged into the first connection terminal through the second connection terminal.

[0013] Optionally, the tool module further comprises a guide structure; the guide structure is connected to the rack assembly to constrain the movement path of the second conversion module during plugging.

[0014] Optionally, a plurality of heat dissipation holes are arranged on the guide structure.

[0015] Optionally, an end of the second conversion module away from the first conversion module is further provided with a handle structure.

[0016] Optionally, the charging and discharging system comprises: the charging and discharging device as described above; the charging and discharging device is capable of accommodating a battery tray loaded with a battery, and the battery is provided with electrodes at both ends perpendicular to the vertical direction; the charging and discharging device further comprises probes capable of clamping corresponding electrodes, respectively.

[0017] The charging and discharging device provided in the present application comprises a partition mechanism and a power module, and the power module and the battery are arranged on both sides (i.e. the first side and the second side) of the partition mechanism, respectively, so as to realize thermal insulation of the power module and the battery, thereby effectively preventing the heat generated by the power module from being directly transmitted to the battery, avoiding the battery from being interfered by heat, and enabling the battery to perform charging and discharging in a more stable and controllable environment.

[0018] An opening capable of being opened or closed is arranged on the partition mechanism, and the power module can be moved from the first side to the second side at least partially through the opening when needed. Therefore, the access, installation, replacement or maintenance of the power module becomes more convenient, and the overall flexibility is improved; especially for the case that the space of the first side is limited, the difficulty of performing complex operations in a narrow space is avoided, and the work efficiency and safety are improved.

[0019] Other aspects can be apparent after reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those skilled in the art without creative effort based on these drawings are within the scope of protection of the present application.

[0021] Fig. 1 is a structural schematic diagram of the charging and discharging equipment from the front view according to an embodiment of the present application;

[0022] Fig. 2 is a structural schematic diagram of the single cell tooling module of the charging and discharging equipment from the front view according to an embodiment of the present application;

[0023] Fig. 3 is a structural schematic diagram of the partition plate mechanism of the charging and discharging equipment from the top view according to an embodiment of the present application;

[0024] Fig. 4 is another structural schematic diagram of the single cell tooling module of the charging and discharging equipment from the front view according to an embodiment of the present application;

[0025] Fig. 5 is a structural schematic diagram of the power module of the charging and discharging equipment in a separated state according to an embodiment of the present application;

[0026] Fig. 6 is a structural schematic diagram of an exemplary second conversion module of the charging and discharging equipment according to an embodiment of the present application;

[0027] Fig. 7 is another structural schematic diagram of the power module of the charging and discharging equipment in a separated state according to an embodiment of the present application;

[0028] Fig. 8 is an enlarged schematic diagram of C in Fig. 7 according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0030] As shown in Fig. 1, a structural schematic diagram of a charging and discharging equipment 100 is demonstrated, which can load batteries for storage and detection of the batteries, such as formation, capacity distribution, etc.

[0031] The charging and discharging device 100 comprises a shell 10 and a tooling module 20. The shell 10 is a housing structure for supporting, protecting and fixing the internal components, and its shape can not be limited, for example, a rectangular box shape as shown in the figure. The shell 10 internally comprises at least one cabinet unit 11, and each cabinet unit 11 is internally divided into a single accommodating cavity 12. The size and shape of the accommodating cavity 12 are matched with the tooling module 20, so that each accommodating cavity 12 can accommodate a tooling module 20.

[0032] As shown in FIG. 2, the tooling module 20 comprises a rack assembly 22 and a partition mechanism 21 arranged in the rack assembly 22. Specifically, the rack assembly 22 is a rectangular frame as a whole, and the partition mechanism 21 is arranged in the rack assembly 22.

[0033] In an alternative embodiment of the present application, the tooling module 20 can also be designed as a whole with the shell 10, that is, the tooling module 20 is integrated with the accommodating cavity 12 to improve the structural stability. At this time, the rack assembly 22 is directly and integrally arranged with the shell 10, and the partition mechanism 21 is arranged in the interior of the accommodating cavity 12.

[0034] In a corresponding embodiment, the tooling module 20 can also be independently arranged relative to the accommodating cavity 12. For example, it is detachably accommodated in the accommodating cavity 12, and its connection mode can not be limited. For example, the tooling module 20 is plug-in connected with the accommodating cavity 12. When the tooling module 20 needs to be maintained or replaced, the worker can easily take it out without disassembling the entire charging and discharging device 100.

[0035] Each rack assembly 22 is also divided into a first rack 221 and a second rack 222 in the vertical direction by the partition mechanism 21. As shown in the figure, the rack on the upper side of the partition mechanism 21 can be understood as the first rack 221, and the rack on the lower side of the partition mechanism 21 can be understood as the second rack 222. Of course, the first rack 221 and the second rack 222 can be integrally arranged with the partition mechanism 21, or can be independently arranged.

[0036] The charging and discharging device 100 further comprises a power supply module 30 connected to the rack assembly 22. For the convenience of description, the partition mechanism 21 is taken as a position reference, and the power supply module 30 is located on the first side of the partition mechanism 21, and the second side away from the partition mechanism 21 is used for accommodating and installing a battery. In short, when the power supply module 30 is arranged on the first rack 221, the battery is located on the second rack 222, and vice versa, when the power supply module 30 is arranged on the second rack 222, the battery is located on the first rack 221.

[0037] It can be understood that the battery is the body required to be stored or detected mentioned above; the power module 30 refers to an electronic device responsible for converting an external power supply (such as an external alternating current) into a direct current required by internal components of the device, and can ensure stable supply of voltage and current.

[0038] By arranging the power module 30 and the battery on the two sides of the partition mechanism respectively, thermal insulation of the power module 30 and the battery is achieved, so as to effectively prevent the heat generated by the power module from being directly transmitted to the battery when the power module works, and avoid the battery from being interfered by heat, and the battery can charge and discharge in a more stable and controllable environment.

[0039] As shown in FIG. 3, further, the partition mechanism 21 is provided with an opening A capable of being opened or closed, and the opening A allows the power module 30 to move from the first side to the second side when needed. Therefore, the access, installation, replacement or maintenance of the power module 30 becomes more convenient, and the overall flexibility is improved; especially for the case that the space on the first side is limited. The difficulty of complex operation in a narrow space is avoided, and the work efficiency and safety are improved.

[0040] As a preferred scheme of the embodiment of the present application, the power module 30 is arranged on the first rack 221 located on the upper side of the partition mechanism 21, and the battery is arranged on the second rack 222 located on the lower side of the partition mechanism 21. Since the heat source (the battery and the power module 30) usually generates upward airflow (i.e. the principle of upward heat airflow), the component generating higher heat (the power module 30) is placed on the upper side, and the heat airflow generated by the component will naturally rise, further protecting the battery from the direct influence of the power module 30 on the upper side.

[0041] As shown in FIG. 3, a specific partition mechanism 21 is demonstrated, which includes a partition assembly 211 and an opening and closing structure 212.

[0042] Specifically, the partition assembly 211 is a plate-shaped mechanism, and the opening A is arranged at the partition assembly 211.

[0043] Further, the opening and closing structure 212 is movably connected to the partition assembly 211, and can open or close the opening A.

[0044] Specifically, the movable connection can be at least one of screwing, sliding connection, magnetic attraction and clamping; when the power module 30 is disassembled, the opening A is opened by the opening and closing structure 212. Otherwise, the opening A is closed.

[0045] As a preferred scheme of the present application, the opening and closing structure 212 is slidably connected to the partition assembly 211.

[0046] The worker can first slide the opening and closing structure 212 covering the opening A along one side to completely open the opening A, and then unplug the second conversion module 32 and the first conversion module 31, move the second conversion module 32 through the opening A to the second side, and remove it from the second side. Similarly, when the second conversion module 32 needs to be reconnected, it can be plugged into the first conversion module 31 through the opening A from the second side.

[0047] In a specific embodiment, the partition assembly 211 includes a partition 2111 and a frame 2112 connected to the partition 2111; the opening A is provided on the partition 2111, and the frame 2112 is used to install the partition 2111 to the shell 10 to play a supporting role and can also provide a connection point, so that the opening and closing structure 212 is slidably connected to the frame 2112 to open or close the opening A.

[0048] It should be noted that other structures can be used instead of the frame 2112, such as a guide rail, a sliding groove, etc. provided on the surface of the partition 2111. As long as the general inventive concept of slidably connecting the opening and closing structure 212 to the partition assembly 211 is adopted, the improved matching structure for sliding connection still falls within the protection scope of the present application.

[0049] In a further aspect of the present application, the opening and closing structure 212 includes a cover plate 2121 and a fan 2122, and the cover plate 2121 is shaped and sized to match the opening A, i.e. the cover plate 2121 can accurately cover the opening A to open or close the opening A.

[0050] The fan 2122 is provided on the cover plate 2121, and the fan 2122 can unidirectionally transport air flow from the second side to the first side.

[0051] Taking FIG. 2 as an example, when the opening A is closed by the cover plate 2121, the fan 2122 works to transport air flow upward through the fan 2122.

[0052] It can be understood that the cover plate 2121 not only serves as a structural part of the opening and closing structure for closing or opening the opening A, but also serves as a carrier of the fan 2122 to achieve the function of unidirectional ventilation. This integrated design simplifies the structure of the entire partition assembly 211, and can guide the air flow from the second side to the power module 30 to cool the power module 30, while further avoiding the backflow of heat from the second side to the first side, thereby improving the heat insulation effect.

[0053] Preferably, the battery and the power module are arranged at opposite positions above and below the opening A, and the air flow can be directly introduced from the first side where the battery is located to the power module in a forward direction to optimize the air flow path and improve the efficiency of temperature control to achieve efficient air flow exchange.

[0054] In one embodiment of the present application, the power module 30 can be removed as a whole from the first rack 221, i.e. moved from the first side to the second side through the opening A described above. This design makes it more convenient to access and install the power module 30, especially in the case of limited space or closely arranged devices. The user does not need to bypass the entire device or disassemble other components, but only needs to move the power module 30 from one side to the other side through the opening A, thereby improving the maintainability and flexibility of the device.

[0055] As shown in FIGS. 4-6, in another embodiment of the present application, the power module 30 includes a first conversion module 31 and a second conversion module 32. Optionally, the first conversion module 31 is an ADDC power converter, i.e. an electronic device that converts alternating current (AC) power to direct current (DC) power, to provide stable DC power supply for the battery. The second conversion module 32 is a DCDC power converter, which is used to adjust and optimize the voltage level of the DC power.

[0056] By dividing the power module 30 into the first conversion module 31 and the second conversion module 32, and connecting the first conversion module 31 to the rack assembly 22, and detachably plugging the second conversion module 32 to the first conversion module 31, it allows the power module to be customized according to different needs and application scenarios. For example, according to the charging needs of a specific battery, according to the voltage needs of the battery charging and discharging, only the parameters of the second conversion module 32 (DCDC power converter) need to be replaced and adjusted. Without the need to re-install and design the whole power module 30. This flexibility enables the charging and discharging device 100 to meet the voltage needs of different batteries, improving the scalability.

[0057] Further, the first conversion module 31 comprises a first connection terminal 311. The first connection terminal 311 refers to an interface for electrical connection to allow current transmission. The first connection terminal 311 can be one or more electrical interfaces for connection with the second conversion module 32. The second conversion module 32 comprises a second connection terminal 321. Similar to the first connection terminal 311, the second connection terminal 321 is also one or more electrical interfaces for connection with the first conversion module 31. The second connection terminal 321 and the first connection terminal 311 are plugged to achieve electrical connection, i.e. the worker can connect or separate the first connection terminal 311 from the first conversion module 31 by a simple plugging action; for example, when the battery needs to be detected at different voltages or currents, the second conversion module 32 may need to be replaced with a module having different conversion characteristics. The worker only needs to disconnect the plug connection between the second conversion module 32 and the first conversion module 31, then pull out the second conversion module 32, and replace it with a new second conversion module 32 suitable for the current battery detection needs. This plug-in connection makes the replacement process simple and fast, improves work efficiency and system flexibility.

[0058] Further, the second conversion module 32 can also be connected to the rack assembly 22, i.e. when the second conversion module 32 is plugged into the first conversion module 31, it not only establishes electrical connection with the first conversion module 31 through the terminal, but also gets additional support through the rack assembly 22 to ensure the stability of the power supply module 30 in work, reducing the risk of damage caused by vibration or external impact.

[0059] The way the second conversion module 32 is connected to the rack assembly 22 is not limited, such as screwing, clamping, etc.; as shown in FIG. 6, in an embodiment of the present application, the end of the second conversion module 32 away from the second connection terminal 321 is provided with a connecting plate 322, and the connecting plate 322 is provided with a plurality of screw holes B for screwing the second conversion module 32 to the rack assembly 22 through screws or other fasteners. It helps to improve the stability of the second conversion module 32 in the plugged state; this additional fixing measure can prevent the second conversion module 32 from being accidentally disconnected, and improve the stability of current transmission.

[0060] As shown in FIG. 7 and FIG. 8, the tooling module 20 further comprises a guide structure 23 connected to the rack assembly 22 to ensure that the second conversion module 32 can move along the predetermined path without lateral deviation or shaking during plugging and unplugging through structural constraints.

[0061] The guide structure 23 can be a slide rail, a guide groove, or a guide plate, etc. The guide structure 23 can match with the cooperation on the second conversion module 32 to form a stable guide path. When the second conversion module 32 needs to be inserted or pulled out, the guide structure 23 will guide it to move in a straight line, while limiting any unnecessary movement in the transverse direction, avoiding the structural interference between the second conversion module 32 and the rack assembly 22 to damage the module.

[0062] In an alternative solution, the guide structure 23 is a bent plate structure, including a guide plate 231 arranged perpendicular to the connecting plate 322, and a mounting plate 232 arranged parallel to the connecting plate 322; the guide plate 231 is constrained in the transverse direction to prevent the second conversion module 32 from moving or deviating in the transverse direction when being inserted into the first conversion module 31, ensuring the stability and accuracy of the insertion process.

[0063] The mounting plate 232 is arranged parallel to the connecting plate 322, so that the mounting plate 232 can closely fit on the connecting plate 322, and the fastener of the screw hole B can be conveniently installed.

[0064] Among them, the guide structure 23 is provided with a plurality of through heat dissipation holes 233, specifically, the heat dissipation holes 233 are arranged on the guide plate 231, to provide a heat dissipation path for the entire power module 30 to avoid local overheating.

[0065] Further, the end of the second conversion module 32 away from the first conversion module 31 is also provided with a handle structure 323, which can provide a stable gripping point, so that the worker can easily insert and pull out the second conversion module 32, reducing the difficulty and complexity of the operation. Secondly, the handle structure 323 can also be used as a winding and restraining point for the wire harness of the power module 30, more conveniently managing and restraining these wire harnesses, keeping the wire harnesses of the power module 30 neat and orderly, to avoid interference or entanglement with other structures.

[0066] Those skilled in the art should understand that if all or part of the sub-modules of the charging and discharging equipment 100 involved in the products provided by the embodiments of the present application are combined, replaced, etc. by fusion, simple change, mutual transformation, etc., such as moving the positions of various components; or integrally setting the products formed by them; or detachable design; as long as the combined components can form a device / apparatus / system with a specific function, the device / apparatus / system is used instead of the corresponding components of the present application, which also falls within the protection scope of the present application.

[0067] To this end, the embodiments of the present application also provide a charging and discharging system 200, comprising the charging and discharging device 100 as above; the charging and discharging device 100 is capable of accommodating a battery tray loaded with batteries, the batteries being provided with electrodes (not shown) at both ends in a direction perpendicular to the vertical direction; the charging and discharging device further comprises probes (not labeled), the probes being capable of clamping the corresponding electrodes, respectively.

[0068] It can be understood that the battery tray usually comprises a fixing and locking mechanism to ensure that the batteries do not move or fall off during transportation and use, so as to provide a specific area for orderly placing the batteries. When the battery tray carries the batteries to the preset area on the second side of the charging and discharging device 100, the probes clamp the corresponding electrodes of the batteries, thereby completing the charging and discharging process.

[0069] The above merely describes the preferred embodiments of the present application and is not intended to limit the scope of the embodiments of the present application. Any equivalent changes, modifications and improvements made within the scope of the claims of the present application in terms of shape, structure, features and spirit should be included in the scope of the claims of the present application.

Claims

1. A charging and discharging device for a battery, comprising: a rack assembly and a partition mechanism arranged on the rack assembly; a power module connected to the rack assembly; wherein the rack assembly is further capable of arranging a battery thereon; the power module is located on a first side of the partition mechanism, and the battery is located on a second side of the partition mechanism; the partition mechanism is provided with at least one opening capable of being opened or closed, and at least part of the power module is arranged to be capable of moving from the first side to the second side when the opening is opened.

2. The charge and discharge device for a battery according to claim 1, wherein the partition mechanism comprises: a partition assembly provided with the opening; and an opening and closing structure movably connected to the partition assembly.

3. The charge and discharge device for a battery according to claim 2, wherein the partition assembly comprises a partition and a frame connected to the partition; the opening is arranged on the partition, and the opening and closing structure is slidably connected to the frame to open or close the opening. 4.The charging and discharging device for a battery according to claim 2, wherein the opening and closing structure comprises a cover plate and a fan arranged on the cover plate; the cover plate and the opening are matched with each other to be capable of opening or closing the opening. 5.The charging and discharging device for a battery according to any one of claims 2 to 4, wherein the power module comprises a first conversion module and a second conversion module capable of being plugged into the first conversion module; the first conversion module is connected to the rack assembly, and the second conversion module is arranged to be capable of moving from the first side to the second side when the opening is opened.

6. The charge and discharge device for a battery according to claim 5, wherein the second conversion module is connected to the rack assembly.

7. The charge and discharge device for a battery according to claim 5, wherein the first conversion module comprises a first connection terminal, and the second conversion module comprises a second connection terminal, and the second conversion module is plugged into the first connection terminal through the second connection terminal.

8. The charge and discharge device for a battery according to claim 5, wherein the charging and discharging device further comprises a guide structure connected to the rack assembly to constrain the moving path of the second conversion module during plugging and unplugging.

9. The charge and discharge device for a battery according to claim 8, wherein a plurality of heat dissipation holes are arranged on the guide structure.

10. The charge and discharge device for a battery according to claim 5, wherein a handle structure is further arranged on an end of the second conversion module away from the first conversion module. 11.A charging and discharging system, comprising: the charging and discharging device according to any one of claims 1 to 10; and a battery tray loaded with a battery, wherein the battery is provided with electrodes at both ends in a direction perpendicular to a vertical direction.

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