Lithium battery charging and discharging device

Abstract

The utility model discloses a lithium battery charging and discharging device, which relates to the technical field of lithium battery testing and comprises a rack, a tray assembly, a first conduction assembly, a driving assembly and a limiting component. A first probe and a second probe are arranged on the first conduction assembly and the second conduction assembly respectively, and the driving assembly is used for driving the first conduction assembly and the second conduction assembly to move in the opposite directions or in the opposite directions, so that the two ends of the lithium battery can be electrically connected with or disconnected from the first probe and the second probe; the limiting part is arranged between the first conduction assembly and the second conduction assembly, and the limiting part is used for limiting the opposite movement between the first conduction assembly and the second conduction assembly when the two ends of the lithium battery can be electrically conducted with the first probe and the second probe. The driving mechanism provided by the utility model drives the probe and the tray to move in opposite directions, so that a battery or charging and discharging equipment is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery testing, in particular to a lithium battery charging and discharging device. Background Art

[0002] At present, the application of lithium batteries has become more and more extensive. The common types of lithium batteries include cylindrical, soft-pack and square shell types. At present, cylindrical lithium batteries are widely used as power batteries and energy storage batteries, and there are many types of them. After the cylindrical lithium battery is manufactured, it needs to be chemically formed and capacitance-divided to activate the battery and stabilize its performance indicators such as internal resistance, output voltage, current, power, etc.

[0003] During the chemical formation and capacitance-dividing process of the cylindrical battery, it generally needs to be placed in a tray first, and then the tray is placed in a charge and discharge machine, and different currents are used to charge and discharge the cylindrical lithium battery. Usually, the driving mechanism drives the probe to move towards the tray, so that the probe is electrically connected to the cylindrical lithium battery. However, during the process of the driving mechanism driving the probe to move towards the tray, it is easy to move excessively towards each other, resulting in damage to the probe or the battery. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a driving mechanism to drive the probe and the tray to move towards each other, so as to solve the problems existing in the above-mentioned prior art and avoid damage to the battery or the charge and discharge equipment.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides a lithium battery charging and discharging device, which includes a frame, a tray assembly, a first conduction assembly, a driving assembly and a limiting component; the tray assembly is arranged on the frame and is used for placing at least one lithium battery; the first conduction assembly is arranged on the frame and on one side of the tray assembly, and the first conduction assembly includes at least one first probe that can be electrically connected to one electrode end of the lithium battery; the second conduction assembly is movably arranged on the frame and on the other side of the tray assembly, and the second conduction assembly includes at least one second probe that can be electrically connected to the other electrode end of the lithium battery; the driving assembly is connected to the first conduction assembly and the second conduction assembly, and the driving assembly is used to drive the first conduction assembly and the second conduction assembly to move towards or away from each other, so that both ends of the lithium battery can be electrically connected or disconnected from the first probe and the second probe; the limiting component is arranged between the first conduction assembly and the second conduction assembly, and the limiting component is used to limit the relative movement between the first conduction assembly and the second conduction assembly when both ends of the lithium battery can be electrically connected to the first probe and the second probe.

[0007] Preferably, the first conduction component is arranged above the tray component, the second conduction component is arranged below the tray component, and the lower electrode end of the lithium battery can be kept in conduction with the second probe; the driving component can drive the second conduction component and the tray component to move up or down synchronously so that the upper electrode end of the lithium battery is in conduction or disconnected from the first probe.

[0008] Preferably, the limiting component is arranged as a limiting rod, the upper end of the limiting rod is fixedly connected to the first conduction component, and during the process of the tray component moving towards the first conduction component, the lower end of the limiting rod can abut against the tray component for limiting.

[0009] Preferably, a plurality of elastic support components are arranged along the circumferential direction on the upper side of the second conduction component, and the elastic support components are used for vertically supporting the tray component.

[0010] Preferably, the frame includes a bottom plate and a plurality of guide rods, the plurality of guide rods are arranged along the circumferential direction on one side of the bottom plate, the tray component and the second conduction component are movably inserted through the plurality of guide rods, and the first conduction component is fixedly connected to the plurality of guide rods.

[0011] Preferably, the tray component includes a connection frame, a battery tray and guide wheels, a plurality of the lithium batteries are placed in the battery tray, the middle of the connection frame has a hollow hole, the connection frame is slidably connected to the frame, the guide wheels are arranged on the connection frame, the battery tray is slidably connected to the connection frame and can be opposite to the hollow hole; the guide wheels are used for supporting the sliding of the battery tray relative to the connection frame.

[0012] Preferably, the first conduction component further includes a first support frame and a first box body, the first box body is fixedly inserted through the middle of the first support frame, the first support frame is fixedly connected to the frame, and a plurality of the first probes are fixedly arranged on the first box body.

[0013] Preferably, the driving component includes two sets of lifting mechanisms, the two sets of lifting mechanisms are fixedly arranged on both sides of the first conduction component, the lifting mechanisms are fixedly connected to the second conduction component, and the lifting mechanisms are used for driving the second conduction component and the tray component to lift synchronously relative to the first conduction component.

[0014] Preferably, the second conduction component includes a second support frame and a second box body, the second box body is fixedly inserted through the middle of the second support frame, the support frame is slidably connected to the frame, and a plurality of the second probes are fixedly arranged on the second box body.

[0015] Preferably, it further includes a heat dissipation component, which is fixedly positioned relative to the frame, and the heat dissipation component is used to dissipate heat from the first probe, the lithium battery, and the second probe.

[0016] The utility model has achieved the following technical effects compared with the prior art:

[0017] In the lithium battery charging and discharging device provided by the utility model, the tray assembly is arranged between the first conduction assembly and the second conduction assembly. By driving the first conduction assembly and the second conduction assembly to move towards each other relative to the frame through the driving component, the two electrode ends of the lithium battery on the tray assembly can be electrically conducted with the first probe and the second probe for charging and discharging tests. After the test is completed, the driving component drives the first conduction assembly and the second conduction assembly to move away from each other relative to the frame, so that the two electrode ends of the lithium battery on the tray assembly can be disconnected from the first probe and the second probe; by arranging a limiting component between the first conduction assembly and the second conduction assembly, after the two electrode ends of the battery are electrically conducted with the first probe and the second probe, the limiting component performs limiting to avoid excessive contact and cause damage to the lithium battery or the first probe and the second probe. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Isometric schematic diagram of the lithium battery charging and discharging device provided for Embodiment 1;

[0020] Figure 2 Structural schematic diagram of the frame provided for Embodiment 1;

[0021] Figure 3 Structural schematic diagram of the tray assembly provided for Embodiment 1;

[0022] Figure 4 Structural schematic diagram of the battery tray provided for Embodiment 1;

[0023] Figure 5 Structural schematic diagram of the first conduction assembly provided for Embodiment 1;

[0024] Figure 6 Structural schematic diagram of the second conduction assembly provided for Embodiment 1.

[0025] In the figure: 1 - Lithium battery charging and discharging device; 10 - Frame; 11 - Base plate; 12 - Guide rod; 20 - Tray assembly; 21 - Lithium battery; 22 - Connection frame; 23 - Battery tray; 24 - Guide wheel; 30 - First conduction assembly; 31 - First probe; 32 - First support frame; 33 - First box body; 40 - Second conduction assembly; 41 - Second probe; 42 - Second support frame; 43 - Second box body; 44 - Elastic support member; 50 - Driving assembly; 51 - Cylinder; 52 - Floating joint; 60 - Limiting member; 70 - Heat dissipation member. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] The purpose of the present invention is to provide a driving mechanism to drive the probe and the tray to move towards each other, so as to solve the problems existing in the above-mentioned prior art and avoid damage to the battery or the charging and discharging equipment.

[0028] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0029] Embodiment 1

[0030] This embodiment provides a lithium battery charging and discharging device 1. Please refer to Figure 1, comprising a frame 10, a tray assembly 20, a first conduction assembly 30, a second conduction assembly 40, a driving assembly 50 and a limiting member 60; the tray assembly 20 is disposed on the frame 10 and is used for placing at least one lithium battery 21; the first conduction assembly 30 is disposed on the frame 10 and on one side of the tray assembly 20, and the first conduction assembly 30 includes at least one first probe 31 capable of being electrically connected to one electrode end of the lithium battery 21; the second conduction assembly 40 is movably disposed on the frame 10 and on the other side of the tray assembly 20, and the second conduction assembly 40 includes at least one second probe 41 capable of being electrically connected to the other electrode end of the lithium battery 21; the driving assembly 50 is connected to the first conduction assembly 30 and the second conduction assembly 40, and the driving assembly 50 is used for driving the first conduction assembly 30 and the second conduction assembly 40 to move towards or away from each other, so that both ends of the lithium battery 21 can be electrically connected or disconnected from the first probe 31 and the second probe 41; the limiting member 60 is disposed between the first conduction assembly 30 and the second conduction assembly 40, and the limiting member 60 is used for limiting the relative movement towards each other between the first conduction assembly 30 and the second conduction assembly 40 when both ends of the lithium battery 21 can be electrically connected to the first probe 31 and the second probe 41.

[0031] The tray assembly 20 is disposed between the first conduction assembly 30 and the second conduction assembly 40. By driving the first conduction assembly 30 and the second conduction assembly 40 to move towards each other relative to the frame 10 by the driving assembly 50, both electrode ends of the lithium battery 21 on the tray assembly 20 can be electrically connected to the first probe 31 and the second probe 41. The first probe 31 and the second probe 41 are connected to an external charging and discharging device for charging and discharging tests. After the tests are completed, the driving assembly 50 drives the first conduction assembly 30 and the second conduction assembly 40 to move away from each other relative to the frame 10, so that both electrode ends of the lithium battery 21 on the tray assembly 20 can be disconnected from the first probe 31 and the second probe 41; by disposing the limiting member 60 between the first conduction assembly 30 and the second conduction assembly 40, after both electrode ends of the battery can be electrically connected to the first probe 31 and the second probe 41, the limiting member 60 performs limiting to avoid excessive contact and cause damage to the lithium battery 21 or the first probe 31 and the second probe 41.

[0032] In an alternative embodiment of the present invention, preferably, the first conduction assembly 30 is disposed above the tray assembly 20, the second conduction assembly 40 is disposed below the tray assembly 20, and the lower electrode end of the lithium battery 21 can be kept in conduction with the second probe 41; the second conduction assembly 40 can vertically support the tray assembly 20 to achieve synchronous movement, so that the driving assembly 50 can drive the second conduction assembly 40 and the tray assembly 20 to move up or down synchronously to make the upper electrode end of the lithium battery 21 conduct or disconnect from the first probe 31.

[0033] In an alternative solution of this embodiment, preferably, the limiting member 60 is provided as a limiting rod. The upper end of the limiting rod is fixedly connected to the first conduction assembly 30. During the process of the tray assembly 20 moving towards the first conduction assembly 30, the lower end of the limiting rod can abut against the tray assembly 20 for limiting; specifically, a plurality of limiting rods are provided and distributed circumferentially for limiting. The limiting range can be adjusted by adjusting the length of the limiting rod. The limiting rod can be detachably connected to the first conduction assembly 30, such as by bolt connection, which is convenient for installation and disassembly.

[0034] In an alternative solution of this embodiment, preferably, please refer to Figure 6 , a plurality of elastic support members 44 are provided along the circumference on the upper side of the second conduction assembly 40. The elastic support members 44 are used to vertically support the tray assembly 20. By providing the elastic support members 44, elastic support can be provided for the tray assembly 20 to avoid bumping and damage between the lithium battery 21 and the second probe 41 during installation; specifically, the elastic support member 44 may include a telescopic rod and a spring. The two ends of the spring are fixedly sleeved outside the telescopic rod. The two ends of the telescopic rod are supported on the tray assembly 20 and the second conduction assembly 40, and the telescopic rod expands and contracts under the buffering action of the spring.

[0035] In an alternative solution of this embodiment, preferably, please refer to Figure 2 , the frame 10 includes a bottom plate 11 and a plurality of guide rods 12. The plurality of guide rods 12 are arranged circumferentially on one side of the bottom plate 11. The tray assembly 20 and the second conduction assembly 40 are movably inserted through the plurality of guide rods 12, and the first conduction assembly 30 is fixedly connected to the plurality of guide rods 12; the stability of guiding is improved by providing the plurality of guide rods 12; the lower ends of the guide rods 12 can be detachably connected to the frame 10, such as by plugging or screwing, which is convenient for installation and disassembly.

[0036] In an alternative solution of this embodiment, preferably, please refer to Figure 3 and Figure 4, the tray assembly 20 includes a connecting frame 22, a battery tray 23 and guide wheels 24. Multiple lithium batteries 21 are placed in the battery tray 23. There is a hollow hole 25 in the middle of the connecting frame 22. The connecting frame 22 is slidably connected to the frame 10. The guide wheels 24 are arranged on the connecting frame 22. The battery tray 23 is slidably connected to the connecting frame 22 and can be opposite to the hollow hole 25. The guide wheels 24 are used to support the sliding of the battery tray 23 relative to the connecting frame 22. Specifically, linear bearings that slidably cooperate with the guide rods 12 are circumferentially arranged on the connecting frame 22. The connecting frame 22 cooperates with the limiting member 60 for limiting. A baffle is circumferentially arranged on the upper side of the hollow hole 25 and has an opening on one side. The baffle facilitates the limitation of the battery tray 25, and the opening facilitates the entry and exit of the battery tray 25. The guide wheels 24 are arranged at the opening to roll and support the bottom side of the battery tray 25. Support arms are arranged on both sides of the bottom of the battery tray 23 for support. The axial length of the guide wheels 24 is less than the distance between the two support arms to avoid interference.

[0037] In an alternative embodiment of the present embodiment, more preferably, please refer to Figure 5 , the first conduction assembly 30 further includes a first support frame 32 and a first box body 33. The first box body 33 is fixedly penetrated through the middle of the first support frame 32. The first support frame 32 is fixedly connected to the frame 10. A plurality of first probes 31 are fixedly arranged on the first box body 33. Among them, the first box body 33 is detachably connected to the first support frame 32 through a connecting piece, and the connecting piece is screwed to both the first support frame 32 and the first box body 33.

[0038] In an alternative embodiment of the present embodiment, more preferably, the driving assembly 50 includes two sets of lifting mechanisms. The two sets of lifting mechanisms are fixedly arranged on both sides of the first conduction assembly 30. The lifting mechanisms are fixedly connected to the second conduction assembly 40. The lifting mechanisms are used to drive the second conduction assembly 40 and the tray assembly 20 to lift synchronously relative to the first conduction assembly 30. Specifically, the lifting mechanism is set to include a cylinder 51 and a floating joint 52. The cylinder 51 drives the floating joint 52 to move up and down. The lower end of the floating joint 52 passes through the tray assembly 20 and is fixedly connected to the second support frame 42 of the second conduction assembly 40. In addition, the lifting mechanism can also be set to other telescopic mechanisms, such as electric telescopic rods, etc.

[0039] In an alternative embodiment of the present embodiment, more preferably, please refer to Figure 6 , the second conduction assembly 40 includes a second support frame 42 and a second box body 43. The second box body 43 is fixedly penetrated through the middle of the second support frame 42. The support frame is slidably connected to the frame 10. A plurality of second probes 41 are fixedly arranged on the second box body 43. Among them, the second box body 43 is detachably connected to the second support frame 42 through a connecting piece, and the connecting piece is screwed to both the second support frame 42 and the second box body 43.

[0040] In an alternative solution of this embodiment, preferably, the lithium battery charging and discharging device 1 provided in this embodiment further includes a heat dissipation component 70, which is fixedly positioned relative to the frame 10. The heat dissipation component 70 is used to dissipate heat from the first probe 31, the lithium battery 21, and the second probe 41. Specifically, the heat dissipation component 70 is configured as a fan and is disposed within the first box body 33. The bottom of the first box body 33 can fixedly connect the first probe 31 through snap connection, and a plurality of heat dissipation holes can also be provided on the bottom wall of the first box body 33. Correspondingly, the battery tray 23 can fixedly connect the lithium battery 21 through snap connection and is provided with a plurality of heat dissipation holes. The fan blows air within the first box body 33 and through the heat dissipation holes on the first box body 33 and the battery tray 23 to dissipate heat from the first probe 31, the lithium battery 21, and the second probe 41.

[0041] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. At the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A lithium battery charging and discharging device, characterized in that: Comprising: A frame (10); A tray assembly (20) disposed on the frame (10) and for placing at least one lithium battery (21); A first conduction assembly (30) disposed on the frame (10) and on one side of the tray assembly (20), the first conduction assembly (30) including at least one first probe (31) capable of electrically conducting with one electrode end of the lithium battery (21); A second conduction assembly (40) movably disposed on the frame (10) and on the other side of the tray assembly (20), the second conduction assembly (40) including at least one second probe (41) capable of electrically conducting with the other electrode end of the lithium battery (21); A driving assembly (50) connected to the first conduction assembly (30) and the second conduction assembly (40), the driving assembly (50) for driving the first conduction assembly (30) and the second conduction assembly (40) to move towards or away from each other, so that both ends of the lithium battery (21) can be electrically conducted or disconnected with the first probe (31) and the second probe (41); and A limiting member (60) disposed between the first conduction assembly (30) and the second conduction assembly (40), the limiting member (60) for limiting the relative movement towards each other between the first conduction assembly (30) and the second conduction assembly (40) when both ends of the lithium battery (21) can be electrically conducted with the first probe (31) and the second probe (41).

2. The lithium battery charging and discharging device according to claim 1, wherein: The first conduction assembly (30) is disposed above the tray assembly (20), the second conduction assembly (40) is disposed below the tray assembly (20), and the lower electrode end of the lithium battery (21) can be kept in electrical conduction with the second probe (41); the driving assembly (50) can drive the second conduction assembly (40) and the tray assembly (20) to move up or down synchronously so that the upper electrode end of the lithium battery (21) is electrically conducted or disconnected with the first probe (31).

3. The lithium battery charging and discharging device according to claim 2, wherein: The limiting member (60) is arranged as a limiting rod, the upper end of the limiting rod is fixedly connected to the first conduction assembly (30), and during the relative movement of the tray assembly (20) and the first conduction assembly (30) towards each other, the lower end of the limiting rod can abut against the tray assembly (20) for limiting.

4. The lithium battery charging and discharging device according to claim 2, wherein: A plurality of elastic support members (44) are circumferentially arranged on the upper side of the second conduction assembly (40), and the elastic support members (44) are used for vertically supporting the tray assembly (20).

5. The lithium battery charging and discharging device according to claim 2, wherein: The frame (10) includes a bottom plate (11) and a plurality of guide rods (12), the plurality of guide rods (12) are circumferentially arranged on one side of the bottom plate (11), the tray assembly (20) and the second conduction assembly (40) movably pass through the plurality of guide rods (12), and the first conduction assembly (30) is fixedly connected to the plurality of guide rods (12).

6. The lithium battery charging and discharging device according to claim 2, wherein: The tray assembly (20) includes a connection frame (22), a battery tray (23), and guide wheels (24). A plurality of the lithium batteries (21) are placed in the battery tray (23). The connection frame (22) has a hollow hole (25) in the middle. The connection frame (22) is slidably connected to the frame (10). The guide wheels (24) are arranged on the connection frame (22). The battery tray (23) is slidably connected to the connection frame (22) and can be opposite to the hollow hole (25). The guide wheels (24) are used to support the sliding of the battery tray (23) relative to the connection frame (22).

7. The lithium battery charging and discharging device according to claim 3, characterized in that: The first conduction assembly (30) further includes a first support frame (32) and a first box body (33). The first box body (33) is fixedly passed through the middle of the first support frame (32). The first support frame (32) is fixedly connected to the frame (10). A plurality of the first probes (31) are fixedly arranged on the first box body (33).

8. The lithium battery charging and discharging device according to claim 1, wherein: The drive assembly (50) includes two sets of lifting mechanisms. The two sets of lifting mechanisms are fixedly arranged on both sides of the first conduction assembly (30). The lifting mechanisms are fixedly connected to the second conduction assembly (40). The lifting mechanisms are used to drive the second conduction assembly (40) and the tray assembly (20) to lift synchronously relative to the first conduction assembly (30).

9. The lithium battery charging and discharging device according to claim 4, characterized in that: The second conduction assembly (40) includes a second support frame (42) and a second box body (43). The second box body (43) is fixedly passed through the middle of the second support frame (42). The support frame is slidably connected to the frame (10). A plurality of the second probes (41) are fixedly arranged on the second box body (43).

10. The lithium battery charging and discharging device according to claim 1, characterized in that: It further includes a heat dissipation component (70), which is fixed at a relative position to the frame (10). The heat dissipation component (70) is used to dissipate heat from the first probes (31), the lithium batteries (21), and the second probes (41).

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