Battery load adjusting tool and battery load adjusting mechanism

Abstract

The utility model relates to the technical field of batteries, and discloses a battery load adjusting tool and a battery load adjusting mechanism, which can be suitable for battery load adjusting operation under the condition that battery poles are arranged on two sides of a battery. The battery load adjusting tool comprises a first mounting block and a second mounting block which are arranged at an interval, a limiting clamping piece connected to the bottom of the first mounting block, and a metal clamping piece connected to the bottom of the second mounting block. The first installation block and the second installation block are connected through an elastic reset piece, and the elastic reset piece can stretch out and draw back in the arrangement direction of the first installation block and the second installation block. The limiting clamping piece and the metal clamping piece are used for extending into a gap between the pole columns of two adjacent batteries, the limiting clamping piece is used for abutting against the pole column of the battery adjacent to the battery to be subjected to charge adjustment, and the metal clamping piece is used for being in contact with the first surface, facing the limiting clamping piece, of the pole column of the battery to be subjected to charge adjustment.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery load adjustment tooling and a battery load adjustment mechanism. Background Technology

[0002] Due to their inherent characteristics, batteries exhibit self-discharge due to their internal resistance. As storage time increases, the battery's remaining capacity gradually decreases, meaning the battery voltage drops. Because the battery manufacturing process involves numerous steps, and these steps cannot be perfectly standardized, different batteries may experience varying rates of voltage drop. When multiple batteries are assembled into a battery pack, long-term storage can lead to increased internal pressure differentials. Furthermore, due to the "weakest link" effect, this results in a decrease in the overall capacity and energy of the individual batteries.

[0003] To mitigate the capacity degradation of battery packs, load adjustment equipment is commonly used to adjust the load of each battery within the pack, thereby increasing the overall capacity. Traditional load adjustment equipment typically uses probes to contact the battery terminals. This method is generally suitable when the battery terminals are located on the top surface of the battery. However, when the battery terminals are located on the sides, the smaller distance between the terminals and the casing makes direct probe contact difficult, leading to challenges in load adjustment. Summary of the Invention

[0004] This utility model provides a battery load adjustment tool and a battery load adjustment mechanism, which can be applied to battery load adjustment operations when the battery terminals are set on both sides of the battery.

[0005] In a first aspect, this utility model provides a battery load adjustment fixture for adjusting the load of a single battery within a battery pack. The battery pack contains multiple batteries arranged along a first direction. Each battery includes a battery body and two terminals. The two terminals are disposed on opposite sides of the battery body along a second direction, which is perpendicular to the first direction and also perpendicular to the height direction of the battery pack. The load adjustment fixture includes:

[0006] A first mounting block and a second mounting block are spaced apart. The first mounting block and the second mounting block are connected by an elastic reset member. The elastic reset member can extend and retract along the arrangement direction of the first mounting block and the second mounting block to adjust the spacing between the first mounting block and the second mounting block.

[0007] A limiting clip connected to the bottom of the first mounting block and a metal clip connected to the bottom of the second mounting block are arranged in parallel. When the battery loading fixture loads the battery to be loaded, the first mounting block and the second mounting block are arranged along the first direction. The limiting clip and the metal clip are used to extend into the gap between the terminals of two adjacent batteries. The limiting clip is used to abut against the terminal of the battery adjacent to the battery to be loaded. The metal clip is used to contact the first surface of the terminal of the battery to be loaded facing the limiting clip.

[0008] This utility model provides a battery loading fixture equipped with metal clips and limiting clips, the distance between which is adjustable. When using this battery loading fixture to load one of the batteries in a battery pack, the first mounting block and the second mounting block are first arranged along a first direction, and the elastic reset member is compressed, reducing the distance between the metal clip and the limiting clip. Then, the limiting clip is driven to move downwards in a state of close contact with the terminal surface of the battery adjacent to the battery to be loaded, until the limiting clip and the metal clip can fully enter the space between the terminals of the two adjacent batteries. The compression of the elastic reset member is then released, allowing the elastic reset member to rebound and move the metal clip towards the terminal of the battery to be loaded, until the metal clip contacts the terminal surface of the battery to be loaded. Finally, a loading device electrically connected to the metal clip can be used to load the battery, thus completing the loading of the individual battery in the battery pack. Therefore, the battery load adjustment tool of this utility model utilizes the space between the terminals of two adjacent batteries to directly contact the metal clips with the terminals, thereby completing the battery load adjustment work, which is simple and easy to operate.

[0009] Secondly, this utility model provides a battery load adjustment mechanism, including a load adjustment device and the battery load adjustment fixture described in the first aspect, wherein there are two battery load adjustment fixtures, and the metal clips of the two battery load adjustment fixtures are used to contact the surfaces of the two terminals of the battery to be adjusted respectively.

[0010] The battery load adjustment mechanism provided by this utility model uses two battery load adjustment fixtures to contact the two terminals on both sides of the battery, thereby obtaining the voltage of the battery to be adjusted. The battery can then be adjusted according to its voltage, thereby reducing the overall voltage difference of the battery pack and meeting the capacity and energy requirements of the battery pack. Attached Figure Description

[0011] Figure 1 This is a top view of a battery pack involved in an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the structure of two adjacent batteries in an embodiment of this utility model;

[0013] Figure 3 This is a schematic diagram of a battery adjustment fixture in an embodiment of this utility model;

[0014] Figure 4 This is a side view of the battery adjustment fixture in contact with the battery terminals in an embodiment of this utility model;

[0015] Figure 5 This is a schematic diagram of one structure of the battery adjustment mechanism in an embodiment of this utility model.

[0016] In the picture:

[0017] 100-Battery pack; 110-Housing; 120-Battery; 121-Battery body; 122-Terminal post; 200-Battery load adjustment fixture; 210-First mounting block; 220-Second mounting block; 230-Elastic reset component; 240-Limiting clamp; 250-Metal clamp; 251-Bending part; 260-Connecting wire; 270-Guide rod; 300-Load adjustment device. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The battery loading fixture and battery loading mechanism in this embodiment of the invention can be used to adjust the battery load. Figure 1 The battery 120 in the battery pack 100 shown is subjected to load adjustment. For example... Figure 1 As shown, the battery pack 100 involved in this embodiment of the present invention may include a housing 110 and a plurality of batteries 120 disposed in the housing 110, wherein the plurality of batteries 120 are arranged sequentially along a first direction.

[0020] Please refer to the above. Figure 1 and Figure 2Each battery 120 in the battery pack 100 may include a battery body 121 and two terminals 122. The two terminals 122 are arranged along a second direction and are respectively disposed on both sides of the battery body 121. Here, the second direction can be understood as a direction perpendicular to the first direction and perpendicular to the height direction of the battery pack 100. Taking the structure of the terminal 122 on one side of the battery 120 as an example, one side surface of the terminal 122 may be parallel to the large surface of the battery body 121, and the other side surface of the terminal 122 opposite to the large surface of the battery body 121 extends along the first direction. Furthermore, the dimension of the terminal 122 along the first direction is smaller than the dimension of the battery body 121 along the first direction. At this time, there is a certain gap between the terminals 122 of two adjacent batteries 120.

[0021] Because the gaps between the terminals 122 on both sides of the battery 120 and the inner wall of the casing 110 are small, when it is necessary to adjust the load of a single battery 120, traditional probes cannot extend through the gaps between the terminals 122 and the casing 110 to contact the terminals 122. Therefore, for applications such as... Figure 1 and Figure 2 The battery pack 100 shown can be used to adjust the load of the battery 120 using the battery adjustment tooling and battery adjustment mechanism in the embodiments of this utility model.

[0022] Specifically, refer to Figure 3 The battery load adjustment fixture 200 in this embodiment may include a first mounting block 210, a second mounting block 220, an elastic reset member 230, a limiting clamp 240, and a metal clamp 250. The first mounting block 210 and the second mounting block 220 are spaced apart. The elastic reset member 230 is connected between the first mounting block 210 and the second mounting block 220. The elastic reset member 230 can extend and retract along the arrangement direction of the first mounting block 210 and the second mounting block 220 to change its own length and thus adjust the distance between the first mounting block 210 and the second mounting block 220.

[0023] The limiting clip 240 is connected to the bottom of the first mounting block 210, and the metal clip 250 is connected to the bottom of the second mounting block 220. The metal clip 250 and the limiting clip 240 are arranged parallel to each other, meaning that the metal clip 250 and the limiting clip 240 will not contact each other. When the distance between the first mounting block 210 and the second mounting block 220 changes, the distance between the metal clip 250 and the limiting clip 240 will also change accordingly.

[0024] In addition, the battery loading fixture 200 in this embodiment also includes a connecting line 260. One end of the connecting line 260 can be electrically connected to the metal clip 250, and the other end can be electrically connected to the loading device so that the loading device can obtain the voltage status of the battery 120 to be loaded through the battery loading fixture 200.

[0025] refer to Figures 2 to 4 When adjusting the load of one of the batteries 120 in the battery pack 100 using the battery adjustment fixture 200 in this embodiment, the first mounting block 210 and the second mounting block 220 can be arranged along the first direction. At this time, the arrangement direction between the metal clip 250 and the limiting clip 240 is the same as the arrangement direction of the multiple batteries 120. The operator can manually squeeze at least one of the first mounting block 210 and the second mounting block 220 to compress the elastic reset member 230, thereby reducing the distance between the first mounting block 210 and the second mounting block 220, that is, reducing the distance between the metal clip 250 and the limiting clip 240. When the distance between the metal clip 250 and the limiting clip 240 is less than the distance between the terminal post 122 of the battery 120 to be adjusted and the terminal post 122 of the adjacent battery 120, the metal clip 250 and the limiting clip 240 can simultaneously extend into the space between two adjacent terminal posts 122. During this process, the limiting clip 240 can be pressed against the surface of the terminal post 122 of the battery 120 adjacent to the battery to be regulated, and the limiting clip 240 can be gradually lowered along the height direction of the battery 120 in this state, thereby limiting the movement direction of the metal clip 250 to be constant.

[0026] Once the limiting clip 240 and the metal clip 250 have extended a sufficient distance into the space between the two terminals 122, the operator can release the pressure applied to the first mounting block 210 and / or the second mounting block 220. At this time, because the elastic reset member 230 was previously compressed and stored, and the limiting clip 240 and the terminal 122 remain in a resisting state, under the rebound action of the elastic reset member 230, the second mounting block 220 can move away from the first mounting block 210, thereby moving the metal clip 250 away from the limiting clip 240, until the metal clip 250 and the terminal 122 of the battery to be regulated abut against the first surface of the limiting clip 240, thereby achieving contact between the metal clip 250 and the terminal 122.

[0027] After the metal clip 250 contacts the terminal 122 of the battery 120 to be regulated, the elastic reset member 230 cannot continue to extend because the two terminals 122 of the two batteries 120 respectively limit the metal clip 250 and the limiting clip 240. At this time, the elastic reset member 230 can always remain in a compressed state, thereby ensuring that the metal clip 250 and the limiting clip 240 remain in abutting against the terminal 122, thus ensuring that the metal clip 250 can always maintain good contact with the terminal 122 of the battery 120 to be regulated during the regulated process, thereby ensuring the regulated effect.

[0028] The load adjustment equipment can obtain the voltage information of the battery 120 to be adjusted through the connection line 260. The operator can adjust the load of the battery 120 appropriately according to the information obtained by the load adjustment equipment 300, so as to reduce the overall voltage difference of the battery pack 100 and thus meet the capacity and energy requirements of the battery pack 100.

[0029] It is worth noting that, in the initial state of the battery load adjustment fixture 200 in this embodiment, when the elastic reset member 230 is not subjected to external force, the distance between the metal clip 250 and the limiting clip 240 is greater than the distance between the terminals 122 of two adjacent batteries 120. Thus, after compressing the elastic reset member 230 and then releasing the compression, during the rebound process, the elastic reset member 230 ensures that the metal clip 250 contacts the surface of the terminal 122 of the battery to be adjusted before returning to its initial state. Furthermore, the elastic force of the elastic reset member 230 itself also ensures that the metal clip 250 and the surface of the terminal 122 remain in a resisting state, thereby guaranteeing stable contact between the metal clip 250 and the terminal 122.

[0030] In some embodiments, refer again Figure 3 The end of the metal clip 250 facing away from the second mounting block 220 may have a bent portion 251. This bent portion 251 bends relative to the limiting clip 240, so that the end of the metal clip 250 has a hook-like structure. Based on this, when the metal clip 250 contacts the first surface of the terminal post 122 of the battery to be regulated 120, the end of the metal clip 250 away from the second mounting block 220 may be approximately flush with the end face of the terminal post 122. At this time, since the bent portion 251 bends towards the terminal post 122, the bent portion 251 can abut against the second surface of the terminal post 122 that is perpendicular to the first surface. Here, the second surface can also be understood as the surface of the terminal post 122 facing the bottom of the housing 110.

[0031] When the bent portion 251 abuts against the second surface of the pole post 122, the bent portion 251 can limit the metal clip 250, ensuring that the metal clip 250 is in contact with the first surface of the pole post 122 while preventing the metal clip 250 from jumping upward under the elastic action of the elastic reset member 230. This further ensures the stability of the contact between the metal clip 250 and the pole post 122. In addition, the contact between the bent portion 251 and the second surface of the pole post 122 can also increase the contact area between the metal clip 250 and the pole post 122, so that the load adjustment device 300 can obtain more accurate voltage information.

[0032] Specifically, the angle between the bent portion 251 and the metal clip 250 can be in the range of 75° to 90°. Within this range, when the metal clip 250 contacts the first surface of the terminal post 122 of the battery to be regulated 120, the bent portion 251 can fully contact the second surface of the terminal post 122, thereby limiting the metal clip 250 to prevent it from jumping upwards out of the space between the terminals post 122 of two adjacent batteries 120.

[0033] Refer again Figure 3 There can be multiple elastic reset members 230, and any two adjacent elastic reset members 230 can be spaced apart. When multiple elastic reset members 230 are provided, the multiple elastic reset members 230 can interact with each other. When the elastic reset members 230 are squeezed to bring the first mounting block 210 and the second mounting block 220 closer to each other, the first mounting block 210 and / or the second mounting block 220 as a whole can move along a preset direction to ensure that the metal clamp 250 and the limiting clamp 240 remain parallel.

[0034] As an alternative implementation, the elastic reset element 230 can be a spring, in which case, such as Figure 3 As shown, a guide rod 270 may also be provided between the first mounting block 210 and the second mounting block 220. The two ends of the guide rod 270 are respectively connected to the first mounting block 210 and the second mounting block 220, and a spring is sleeved on the guide rod 270. The extension direction of the guide rod 270 is the same as the arrangement direction of the first mounting block 210 and the second mounting block 220. When the spring extends or retracts, the guide rod 270 can guide the spring, thereby ensuring that the spring can extend or retract in a preset direction.

[0035] Specifically, one end of the guide rod 270 can be fixedly connected to one of the first mounting block 210 and the second mounting block 220, and the other end of the guide rod 270 is slidably connected to the other end of the first mounting block 210 and the second mounting block 220. For example, one end of the guide rod 270 is fixedly connected to the first mounting block 210, and the other end is slidably connected to the second mounting block 220. The second mounting block 220 has a through hole on the side facing the first mounting block 210 so that the guide rod 270 can pass through the through hole. When the elastic reset member 230 is compressed, the second mounting block 220 moves closer to the first mounting block 210 relative to the guide rod 270, thereby adjusting the distance between the first mounting block 210 and the second mounting block 220.

[0036] In some embodiments, continue to refer to Figure 3The metal clip 250 can be positioned on the side of the second mounting block 220 near the first mounting block 210. When the elastic reset member 230 is in its initial state, the gap between the metal clip 250 and the limiting clip 240 will not be too large. When the first mounting block 210 and / or the second mounting block 220 are pressed together to bring them closer to each other, the gap between the metal clip 250 and the limiting clip 240 can more quickly meet the requirement of being smaller than the gap between the terminals 122 of two adjacent batteries 120. This facilitates the operation of the operator and thus helps to improve work efficiency.

[0037] In some embodiments, the surface of the limiting clip 240 may be provided with an insulating layer, that is, the surface of the limiting clip 240 is non-conductive. Thus, when the limiting clip 240 contacts the surface of the terminal post 122 of the battery 120, there is no electrical connection between the limiting clip 240 and the terminal post 122. This prevents incorrect voltage information of the battery 120 to be regulated from being obtained by the load-regulating device due to accidental contact between the metal clip 250 and the limiting clip 240, thereby ensuring that each battery 120 in the battery pack 100 can be correctly regulated.

[0038] Please refer to the above. Figure 1 , Figure 2 and Figure 5 The battery load adjustment mechanism in this embodiment may include a load adjustment device 300 and a battery load adjustment fixture 200 as described in the above embodiment. There are two battery load adjustment fixtures 200, each connected to the load adjustment device 300 via a connecting line 260 connected to a metal clip 250. When adjusting the load of one of the batteries 120 in the battery pack 100, the two battery load adjustment fixtures 200 are respectively positioned on both sides of the battery 120 along the second direction, so that the metal clips 250 of the two battery load adjustment fixtures 200 contact the two terminals 122 on both sides of the battery 120. The load adjustment device 300 can obtain the actual voltage of the battery 120 to be adjusted through the two battery load adjustment fixtures 200, and adjust the load according to the actual voltage of the battery 120, thereby reducing the overall voltage difference of the battery pack 100 and meeting the capacity and energy requirements of the battery pack 100.

[0039] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this utility model without departing from the spirit and scope of this utility model. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A battery load adjustment fixture for adjusting the load of a single battery in a battery pack, wherein the battery pack contains a plurality of batteries arranged along a first direction, each battery comprising a battery body and two terminals, the two terminals being disposed on opposite sides of the battery body along a second direction, the second direction being perpendicular to the first direction and perpendicular to the height direction of the battery pack; characterized in that, The load adjustment fixture includes: A first mounting block and a second mounting block are spaced apart. The first mounting block and the second mounting block are connected by an elastic reset member. The elastic reset member can extend and retract along the arrangement direction of the first mounting block and the second mounting block to adjust the spacing between the first mounting block and the second mounting block. A limiting clip connected to the bottom of the first mounting block and a metal clip connected to the bottom of the second mounting block are arranged in parallel. When the battery loading fixture loads the battery to be loaded, the first mounting block and the second mounting block are arranged along the first direction. The limiting clip and the metal clip are used to extend into the gap between the terminals of two adjacent batteries. The limiting clip is used to abut against the terminal of the battery adjacent to the battery to be loaded. The metal clip is used to contact the first surface of the terminal of the battery to be loaded facing the limiting clip.

2. The battery load adjustment fixture according to claim 1, characterized in that, The metal clip has a bent portion at one end away from the second mounting block. The bent portion bends away from the limiting clip relative to the metal clip, so that when the metal clip contacts the first surface, a portion of the bent portion abuts against the second surface of the terminal post of the battery to be regulated. The second surface is a plane perpendicular to the first surface.

3. The battery load adjustment fixture according to claim 2, characterized in that, The angle between the bent portion and the metal clip is 75°~90°.

4. The battery load adjustment fixture according to claim 1, characterized in that, There are multiple elastic reset elements, and any two adjacent elastic reset elements are spaced apart.

5. The battery load adjustment fixture according to claim 1, characterized in that, The elastic reset element is a spring.

6. The battery load adjustment fixture according to claim 5, characterized in that, It also includes a guide rod, the two ends of which are respectively connected to the first mounting block and the second mounting block, and the elastic reset member is sleeved on the guide rod.

7. The battery load adjustment fixture according to claim 1, characterized in that, The metal clip is disposed on the side of the second mounting block near the first mounting block.

8. The battery load adjustment fixture according to claim 1, characterized in that, The surface of the limiting clip is provided with an insulating layer.

9. The battery load adjustment fixture according to claim 1, characterized in that, It also includes a connecting wire, one end of which is electrically connected to the metal clip, and the connecting wire is used for electrical connection with the load adjusting device.

10. A battery load adjustment mechanism, characterized in that, The device includes a load-adjusting device and a battery load-adjusting fixture as described in any one of claims 1 to 9, wherein there are two battery load-adjusting fixtures, and the metal clips of the two battery load-adjusting fixtures are used to contact the surfaces of the two terminals of the battery to be loaded.

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