Battery pack with high safety performance

Abstract

The utility model relates to the technical field of safety battery packs, and provides a battery pack with high safety performance, which comprises a bearing assembly, the bearing assembly comprises a battery pack seat, and three groups of leakage net supporting plates are fixedly connected in the battery pack seat at equal intervals; the interior of the battery pack seat also comprises a battery pack bin which is arranged above each leakage net supporting plate and is used for placing a battery pack group; the battery pack seat further comprises a collecting bin arranged below each leakage net supporting plate; a cover plate is assembled at the top of the battery pack seat; a leaked liquid collecting assembly capable of adsorbing leaked liquid of the battery is arranged at the bottom of the battery pack seat and located at the collecting bin; the twisting assemblies are arranged in the battery pack seat and are positioned at the battery pack cabins; the positioning cushioning assemblies are arranged in the battery pack cabins and can rotate along with the screwing assemblies so as to clamp and prevent the battery packs in the battery pack cabins from loosening; through the design, the problems that in the prior art, a battery monomer fixing mode is loosened, and leaked liquid is accumulated in a closed space, so that corrosion and secondary short circuit are easily caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of safe battery pack technology, specifically to a battery pack with high safety performance. Background Technology

[0002] Battery packs are key components in modern electronic devices and new energy fields, playing a crucial role. In terms of energy storage, a battery pack acts like an "energy warehouse," efficiently storing electrical energy. Taking electric vehicles as an example, they can be charged during off-peak hours to store large amounts of energy, which then powers the motor during driving, propelling the vehicle and meeting daily travel needs. Regarding power supply stability, battery packs provide a stable and continuous current output. In electronic devices, they ensure stable operation under various conditions, preventing malfunctions or damage caused by voltage fluctuations. For medical equipment and precision instruments with stringent power supply requirements, the stable power supply characteristics of the battery pack are paramount; however, ensuring that battery packs do not become loose or leak, thus reducing safety, is a pressing issue that needs to be addressed.

[0003] A search revealed that publication number CN204577488U discloses a high-safety battery pack, comprising lithium-ion secondary battery cells, a tray, and an outer packaging body. The tray includes a battery mounting portion and a side wall portion. The lithium-ion secondary battery cells are mounted on the battery mounting portion. The side wall portion rises from the edge of the battery mounting portion in a direction perpendicular to the battery mounting portion, and the height of the side wall portion is greater than the thickness of the lithium-ion secondary battery cells mounted on the tray. The outer packaging body houses the tray containing multiple lithium-ion battery cells. This utility model battery pack has good sealing performance and a compact structure. Even if high-temperature contents leak from the lithium-ion secondary batteries, it is unlikely to produce smoke or catch fire, significantly improving user safety.

[0004] The problem with the aforementioned high-safety battery pack is that:

[0005] The battery cells are placed flat on the tray, so under vibration or impact conditions, the batteries are prone to displacement, which may lead to loose connections or structural damage, posing a safety hazard. At the same time, although the existing trays prevent overflow by raising the side walls, the leaked liquid accumulates in the enclosed space, which may corrode components or cause secondary short circuits. Utility Model Content

[0006] This invention proposes a high-safety-performance battery pack that solves the problems of loose battery cell fixing methods and the accumulation of leaked liquid in enclosed spaces, which can easily cause corrosion and secondary short circuits in existing technologies.

[0007] A high-safety battery pack includes a support assembly, which includes a battery pack base. Three sets of mesh trays are fixedly connected at equal intervals inside the battery pack base. The battery pack base also includes a battery pack compartment opened above each mesh tray for placing the battery pack assembly. The battery pack base also includes a collection compartment opened below each mesh tray.

[0008] The top of the battery pack holder is fitted with a cover plate;

[0009] The bottom of the battery pack holder is equipped with a leakage collection component at the collection compartment, which can absorb battery leakage.

[0010] A rotating component is installed in each battery pack compartment within the battery pack holder;

[0011] A positioning and shock-absorbing component is installed in each of the battery pack compartments and can rotate with the twisting component to clamp and prevent the battery pack in the battery pack compartment from loosening.

[0012] Preferably, the leakage collection assembly includes:

[0013] Base plate and bolts;

[0014] An absorbent cotton layer is fixedly connected at equal intervals to the top of the base plate;

[0015] Each of the absorbent cotton layers corresponds to the position of each strainer tray;

[0016] The base plate is bolted to the bottom of the battery pack holder.

[0017] Preferably, the twisting assembly includes:

[0018] Rotate the threaded rod connected inside the battery pack holder;

[0019] A handle located at the end of the threaded rod;

[0020] The handle is located on the outside of the battery pack holder.

[0021] Preferably, the support component further includes:

[0022] A threaded cap is threaded onto the outside of the battery pack holder;

[0023] The threaded cap corresponds to the position of the screw handle.

[0024] Preferably, the twisting assembly further includes:

[0025] A slide block with equally spaced threads connected to the outside of the threaded rod;

[0026] The grooves are formed on the sides of each of the aforementioned slides.

[0027] Preferably, the positioning and damping component includes:

[0028] Hanging plates are fixedly connected at equal intervals to the sides of each battery pack compartment. Preferably, the positioning and shock absorption assembly further includes:

[0029] A limiting rod is slidably connected to the inner side of each of the aforementioned hanging plates;

[0030] Spring coils fitted on the outside of each of the aforementioned limit rods.

[0031] Preferably, the positioning and damping component further includes:

[0032] A sliding column fixedly connected to the outside of the limiting rod;

[0033] Rotary ball bearings connected to the side of the slide column;

[0034] The ball bearings correspond to the positions of the grooves.

[0035] Preferably, the positioning and damping component further includes:

[0036] The top plate is fixedly connected to the front of the sliding column.

[0037] Preferably, the positioning and damping component further includes:

[0038] Shock-absorbing cotton layers are distributed inside each of the battery pack compartments.

[0039] The beneficial effects of this utility model are as follows:

[0040] I. Dynamic clamping and anti-loosening structure

[0041] Innovative Structure:

[0042] The system employs a multi-stage mechanical transmission mechanism: a threaded rod drives the slide block, a groove pushes the ball bearings, and a sliding column drives the top plate, thus achieving active clamping of the battery pack.

[0043] Technical advantages:

[0044] The clamping force can be precisely adjusted by rotating the handle, ensuring a stable preload for battery packs of different sizes. Combined with the elastic compensation of the spring coil, clamping stability is maintained even under vibration conditions.

[0045] II. Tiered Leakage Handling System

[0046] Innovative Structure:

[0047] The three-stage processing channel, consisting of a strainer tray, a collection chamber, and an absorbent cotton layer, forms a complete path of "leakage diversion - temporary storage - adsorption".

[0048] Technical advantages:

[0049] The absorbent cotton layer is made of polypropylene / silica composite fiber, which can quickly solidify the electrolyte, completing the liquid-to-gel transition within seconds. The detachable base plate design improves the efficiency of adsorption module replacement and avoids the retention of corrosive media. Attached Figure Description

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0051] Figure 1 This is a schematic diagram of the overall device of this utility model.

[0052] Figure 2 This is a disassembled schematic diagram of the cover plate and leakage collection component of this utility model;

[0053] Figure 3 This is a schematic diagram of the internal structure of the battery pack holder of this utility model;

[0054] Figure 4 This is a schematic diagram of the screwing component of this utility model;

[0055] Figure 5 This is a schematic diagram of the positioning and shock absorption component of this utility model;

[0056] In the diagram: 1. Support assembly; 11. Battery pack holder; 111. Battery pack compartment; 112. Leakage mesh tray; 113. Collection compartment; 12. Cover plate; 13. Threaded cap; 2. Leakage collection assembly; 21. Base plate; 211. Absorbent cotton layer; 22. Bolt; 3. Tightening assembly; 31. Threaded rod; 311. Tightening handle; 32. Slide seat; 321. Slope; 4. Positioning and shock absorption assembly; 41. Shock absorption cotton layer; 42. Sliding column; 421. Ball bearing; 422. Hanging plate; 423. Limiting rod; 424. Spring ring; 425. Top plate. Detailed Implementation

[0057] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0058] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5This utility model provides a technical solution: a high-safety battery pack, including a support component 1, the support component 1 including a battery pack seat 11, three sets of mesh trays 112 are fixedly connected at equal intervals inside the battery pack seat 11, the battery pack seat 11 also includes a battery pack compartment 111 opened above each mesh tray 112 for placing the battery pack group; the battery pack seat 11 also includes a collection compartment 113 opened below each mesh tray 112;

[0059] The top of the battery pack holder 11 is fitted with a cover plate 12;

[0060] The bottom of the battery pack holder 11 is provided with a leakage collection component 2 for absorbing battery leakage at the collection chamber 113;

[0061] A rotating component 3 is installed inside the battery pack holder 11 at each battery pack compartment 111;

[0062] A positioning and shock-absorbing component 4 is installed in each battery pack compartment 111 and can rotate with the twisting component 3 to clamp and prevent the battery pack in the battery pack compartment 111 from loosening.

[0063] This design solves the problems of loose battery cell fixing methods in existing technologies, as well as the accumulation of leaked liquid in enclosed spaces, which can easily cause corrosion and secondary short circuits.

[0064] Please see Figure 2 The leakage collection assembly 2 includes:

[0065] Base plate 21 and bolts 22;

[0066] The absorbent cotton layer 211 is fixedly connected to the top of the base plate 21 at equal intervals;

[0067] Each absorbent cotton layer 211 corresponds to the position of each strainer plate 112;

[0068] The base plate 21 is threadedly mounted on the bottom of the battery pack holder 11 by bolts 22;

[0069] When the battery pack in the battery pack compartment 111 leaks, the leaked battery liquid will fall into the collection compartment 113 through the leakage net tray 112, and the leaked battery liquid can be absorbed and collected by the liquid-absorbing cotton layer 211 installed in the collection compartment 113.

[0070] This design prevents leaked liquid from accumulating in enclosed spaces, which could corrode components or cause secondary short circuits.

[0071] Please see Figure 3 and Figure 4 The rotating component 3 includes:

[0072] Rotate the threaded rod 31 connected inside the battery pack holder 11;

[0073] A handle 311 is provided at the end of the threaded rod 31;

[0074] The handle 311 is located on the outside of the battery pack holder 11.

[0075] Support component 1 also includes:

[0076] A threaded cap 13 is threadedly connected to the outside of the battery pack holder 11;

[0077] The threaded cap 13 corresponds to the position of the screw handle 311;

[0078] This design prevents accidental activation of the screw rod 31 by the handle 311, thus avoiding unexpected rotation of the screw rod 31.

[0079] Please see Figure 3 and Figure 4 and Figure 5 The screwing assembly 3 also includes:

[0080] A slide block 32 is connected to the outside of the threaded rod 31 by equally spaced threads;

[0081] Slopes 321 are provided on the sides of each slide 32.

[0082] Positioning and damping component 4 includes:

[0083] Hanging plates 422 are fixedly connected at equal intervals to the sides of each battery pack compartment 111.

[0084] The positioning and damping component 4 also includes:

[0085] Limiting rods 423 are slidably connected to the inner side of each hanging plate 422;

[0086] Spring rings 424 are sleeved on the outside of each limiting rod 423;

[0087] This design allows the slide bar 42 to elastically return to its original position and disengage from the battery pack in the battery compartment 111 when the threaded rod 31 is reversed. This design avoids the need to remove the battery pack from the battery compartment 111 later.

[0088] The positioning and damping component 4 also includes:

[0089] The sliding column 42 is fixedly connected to the outside of the limiting rod 423;

[0090] Rotate the ball bearing 421 connected to the side of the slide column 42;

[0091] The positions of ball bearing 421 and groove 321 correspond;

[0092] This design makes it easier for the slide column 42 to be pushed when it is in contact with the slide block 32.

[0093] The positioning and damping component 4 also includes:

[0094] The top plate 425 is fixedly connected to the front of the sliding column 42.

[0095] The positioning and damping component 4 also includes:

[0096] Shock-absorbing cotton layers 41 are distributed inside each battery pack compartment 111;

[0097] This design allows for shock absorption and clamping of the battery pack within the battery pack compartment 111, thereby preventing damage to the battery pack caused by shaking within the battery pack compartment 111.

[0098] Working principle:

[0099] First, the base plate 21 is installed at the bottom of the battery pack holder 11 using bolts 22. At this time, the absorbent cotton layer 211 at the top of the base plate 21 will be sent into the collection chamber 113. When the battery pack in the battery pack chamber 111 leaks, the leaked liquid will pass through the leak net support plate 112 and enter the collection chamber 113, and be absorbed by the absorbent cotton layer 211. This design can prevent the leaked liquid from accumulating in the closed space, causing corrosion of parts or causing secondary short circuits.

[0100] When the battery pack is placed in the battery pack compartment 111, the threaded cap 13 can be unscrewed first, and then the handle 311 can be turned to rotate the threaded rod 31. The slide 32, which is threaded to the outside of the threaded rod 31, will be pushed horizontally and will contact the ball bearing 421 through the groove 321. The slide column 42 will be pushed into the battery pack compartment 111 by the slide 32 until the top plate 425 presses against the side of the battery pack. The top plate 425, together with the shock-absorbing cotton layer 41, can shock-absorbing and positioning the battery pack in the battery pack compartment 111, thereby preventing the battery pack from becoming loose in the battery pack compartment 111.

[0101] Specifically, when it is necessary to remove the battery pack from the battery pack compartment 111, simply reverse the handle 311 to disengage the slide block 32 from the slide post 42, and the slide post 42 will cause the top plate 425 to disengage from the battery pack under the elastic reset of the spring coil 424, at which point the battery pack can be removed from the battery pack compartment 111.

[0102] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-safety battery pack, comprising a support assembly (1), characterized in that: The supporting component (1) includes a battery pack holder (11), and three sets of mesh trays (112) are fixedly connected at equal intervals inside the battery pack holder (11). The battery pack holder (11) also includes a battery pack compartment (111) opened above each mesh tray (112) for placing the battery pack group. The battery pack holder (11) also includes a collection compartment (113) opened below each mesh tray (112). The top of the battery pack holder (11) is fitted with a cover plate (12); The bottom of the battery pack holder (11) is provided with a leakage collection component (2) for absorbing battery leakage at the collection chamber (113); A screwing assembly (3) is installed in the battery pack holder (11) at each battery pack compartment (111); A positioning and damping component (4) is installed in each of the battery pack compartments (111) and can rotate with the twisting component (3) to clamp and prevent the battery pack in the battery pack compartment (111) from loosening.

2. The high-safety-performance battery pack according to claim 1, characterized in that, The leakage collection assembly (2) includes: Base plate (21) and bolts (22); The absorbent cotton layer (211) is fixedly connected at equal intervals to the top of the base plate (21); Each of the absorbent cotton layers (211) corresponds to the position of each strainer plate (112); The base plate (21) is threadedly mounted on the bottom of the battery pack holder (11) by bolts (22).

3. A high-safety-performance battery pack according to claim 1, characterized in that, The twisting assembly (3) includes: Rotate the threaded rod (31) connected inside the battery pack holder (11); A handle (311) is provided at the end of the threaded rod (31); The handle (311) is located outside the battery pack holder (11).

4. A high-safety-performance battery pack according to claim 3, characterized in that, The support component (1) also includes: A threaded cap (13) is threadedly connected to the outside of the battery pack holder (11); The threaded cap (13) corresponds to the position of the handle (311).

5. A high-safety-performance battery pack according to claim 3, characterized in that, The twisting assembly (3) also includes: A slide (32) is connected to the outside of the threaded rod (31) by equally spaced threads; A groove (321) is formed on the side of each of the slides (32).

6. A high-safety-performance battery pack according to claim 1, characterized in that, The positioning and damping component (4) includes: Hanging plates (422) are fixedly connected at equal intervals to the sides of each of the battery pack compartments (111).

7. A high-safety-performance battery pack according to claim 6, characterized in that, The positioning and damping component (4) also includes: A limiting rod (423) is slidably connected to the inner side of each of the hanging plates (422); Spring rings (424) are sleeved on the outside of each of the aforementioned limiting rods (423).

8. A high-safety-performance battery pack according to claim 7, characterized in that, The positioning and damping component (4) also includes: A sliding column (42) is fixedly connected to the outside of the limiting rod (423); Rotate the ball bearing (421) connected to the side of the slide column (42); The ball bearing (421) corresponds to the groove (321).

9. A high-safety-performance battery pack according to claim 8, characterized in that, The positioning and damping component (4) also includes: The top plate (425) is fixedly connected to the front of the sliding column (42).

10. A high-safety-performance battery pack according to claim 1, characterized in that, The positioning and damping component (4) also includes: Shock-absorbing cotton layers (41) are distributed inside each of the battery pack compartments (111).

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