A waterproof lithium battery PACK structure with impact buffering effect

Abstract

The invention discloses a waterproof lithium battery PACK structure with impact buffering effect. The invention relates to the field of lithium battery technology and comprises a hollow air cushion, wherein the hollow air cushion is used for wrapping and covering a lithium battery pack and elastically contacting with an external object. The hollow air cushion is sleeved on a knob block and rotatably connected with the knob block. The waterproof lithium battery PACK structure with impact buffering effect converts the hard contact between the lithium battery PACK structure and the external object into elastic contact by using the hollow air cushion that fully wraps and covers the lithium battery PACK structure, thereby preventing the lithium battery from being damaged to a certain extent due to long-term hard impact and being difficult to use normally. By arranging a corrugated soft strip that can stretch and contract on the inner side of a stretch spring, it is convenient to limit the deformation of the stretch spring, thereby preventing the stretch spring from being bent, dislocated or overlapped due to uneven extrusion force of the hollow air cushion, thereby preventing the spring from being damaged to a certain extent due to uneven extrusion force.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to a waterproof lithium battery PACK structure with impact buffering effect. Background Art

[0002] Battery PACK generally refers to combined batteries, mainly referring to the processing and assembly of lithium battery packs, which mainly involves combining battery cells, battery protection boards, battery connectors, label paper, etc. through battery PACK processes to form products that customers need. Battery PACK is now mainly concentrated in lithium battery pack PACK factories, which have their own PACK structure design, PACK electronic design, and PACK production workshops. They can independently develop and design according to customer needs. After the customer's PACK lithium battery customization needs are confirmed through battery solutions, battery specifications, and battery samples, the PACK production line in the PACK workshop will be used for production and processing, and the products will be shipped after passing the quality inspection. At present, the battery pack industry is still an emerging industry. Battery packs are generally divided into series battery packs and parallel battery packs. Parallel battery packs require that each battery has the same voltage, and the output voltage is equal to the voltage of one battery. Parallel battery packs provide stronger current;

[0003] The lithium battery packs produced by the PACK workshop are usually used in large equipment such as electric bicycles and electric vehicles. These devices will inevitably encounter a certain degree of impact when in use. When these devices are impacted, they will also cause certain hard impact damage to the lithium battery packs installed inside. If the lithium battery is subjected to hard impact for a long time and suffers a certain degree of damage, it will be difficult to use normally. Therefore, we proposed a waterproof lithium battery PACK structure with impact buffering effect. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a waterproof lithium battery PACK structure with impact buffering effect, comprising:

[0005] The knob block separates the components from foreign objects by a certain distance to prevent the components of the lithium battery pack from directly contacting foreign objects after installation, and prevents the components from being damaged by friction with foreign objects for a long time and reducing the service life;

[0006] The protective device is used to wrap the lithium battery pack and make elastic contact with foreign objects to prevent the lithium battery from being hit hard for a long time and causing a certain degree of damage, which makes it difficult to use normally;

[0007] A water absorbing device, which is used to dilute a portion of the liquid that has penetrated into the protective device to prevent the water in the protective device from flowing around and soaking everywhere and making it difficult to stay still;

[0008] A cleaning device, which scrapes and cleans the surface of the water absorbing device by driving a knob block, so as to prevent the side of the water absorbing device from being contaminated by excessive dust and other debris that adhere to water and cover the side of the water absorbing device, thereby affecting the water absorbing effect;

[0009] One side of the knob block penetrates the outer side of the protective device and is rotatably connected to the protective device, one side of the knob block is fixedly connected to one side of the cleaning device, the inner wall of the protective device is fixedly connected to one side of the water absorbing device, a plurality of the water absorbing devices are provided, and the plurality of the water absorbing devices are evenly distributed on the inner wall of the protective device, a plurality of the cleaning devices are provided, and the plurality of the cleaning devices are evenly distributed on one side of the knob block;

[0010] Wherein, the protective device comprises:

[0011] Hollow air cushion, which is used to wrap the lithium battery pack and make elastic contact with foreign objects. The hollow air cushion that fully wraps the lithium battery PACK structure changes the hard contact between the lithium battery PACK structure and foreign objects into elastic contact, preventing the lithium battery from being subjected to hard impact for a long time and causing a certain degree of damage, which makes it difficult to use normally;

[0012] The hollow air cushion is sleeved on the knob block and is rotatably connected to the knob block. A plurality of knob blocks are provided, and the plurality of knob blocks are evenly distributed on the outside of the hollow air cushion.

[0013] The outer side of the hollow air cushion is provided with an exhaust circular hole. By providing a plurality of exhaust circular holes, it is convenient for the hollow air cushion to quickly discharge the internal gas when it is impacted, leaving space for compression deformation, and preventing the hollow air cushion from being compressed to a large extent when it is impacted with too much force, resulting in a large amount of internal gas being concentrated and accumulating to produce a high-pressure explosion. The inner wall of the hollow air cushion is fixedly connected with an extension spring, and the extension force of the extension spring is used to assist the hollow air cushion from the inside of the hollow air cushion to facilitate its plastic recovery, and prevent the hollow air cushion from being easily deformed and damaged when it is impacted with too much force and compressed for a long time, and it is difficult to plastically rebound to protect the lithium battery PACK structure. The inner wall of the hollow air cushion is fixedly connected with an arc-shaped soft strip, and the wave-shaped soft strip that can be stretched and contracted is arranged on the inner side of the extension spring, which is convenient for deformation limiting of the extension spring, and preventing the extension spring from being bent, dislocated, or staggered and overlapped due to the uneven direction of the extrusion force of the hollow air cushion, resulting in a certain degree of damage to the spring;

[0014] One end of the extension spring passes through the water absorbing device and is fixedly connected to the water absorbing device, and a plurality of the extension springs are provided, and the plurality of the extension springs are evenly distributed on the inner wall of the hollow air cushion;

[0015] There are multiple exhaust circular holes, and the multiple exhaust circular holes are evenly distributed on the outside of the hollow air cushion. There are multiple arc-shaped soft strips, and the multiple arc-shaped soft strips are evenly distributed on the inner wall of the hollow air cushion.

[0016] Furthermore, the water absorption device includes a sponge square plate. By arranging a plurality of sponge square plates inside the hollow air cushion, it is convenient to absorb the infiltrated moisture, and prevent the liquid infiltrated into the hollow air cushion due to the environment from flowing around and wetting various positions inside the hollow air cushion. When the hollow air cushion is hit or the knob block is manually pushed to compress the hollow air cushion, the sponge square plate is squeezed to drain water, so as to prevent the internal moisture from being difficult to dry quickly after the sponge square plate absorbs moisture for a long time in a low temperature and humid environment. The sponge square plate is separated, and the inner wall of the hollow air cushion is covered by arranging a plurality of sponge square plates inside the hollow air cushion to avoid the inner wall of the hollow air cushion being damaged by friction with the outside for a long time, so that the moisture penetrates through the hollow air cushion into the lithium battery PACK structure. When the extension spring is extended, the compressed sponge square plate is driven to expand together, so as to prevent the sponge square plate from being difficult to expand and recover to the initial state for moisture absorption after being tightly compressed for a long time. A round through hole is opened on one side of the sponge square plate. , a built-in square rod is fixedly connected to the inner wall of the circular through hole, and multiple built-in square rods are arranged between the spring coils of the extension spring so that the extension spring will not be compressed to a fully contracted state, thereby preventing the extension spring from being in a fully contracted state for a long time when the compression force is too large, causing the extension spring to gradually lose the spring extension performance and become difficult to use; one end of the built-in square rod is fixedly connected to a semi-arc scraper, and the movable semi-arc scraper slides and scrapes the inner wall of the circular through hole to prevent the accumulation of more and more dust and other debris in the circular through hole, which affects the contraction of the extension spring; one side of the sponge square plate is fixedly connected to the inner wall of the hollow air cushion, and the inner wall of the circular through hole is fixedly connected to the outer side of the extension spring; a plurality of sponge square plates are provided, and the plurality of sponge square plates are evenly distributed on the inner wall of the hollow air cushion; a plurality of circular through holes are provided, and the plurality of circular through holes are evenly distributed on one side of the sponge square plate; a plurality of built-in square rods are provided, and the plurality of built-in square rods are evenly distributed on the inner wall of the circular through hole.

[0017] Furthermore, the cleaning device includes a corrugated scraper, and the rotating corrugated scraper comprehensively scrapes the water-absorbing side of the sponge square plate to prevent the side of the sponge square plate from being contaminated with dust and other debris when it is in a wet state and contains water, gradually accumulating to completely cover the side of the sponge square plate and affecting the water absorption effect of the sponge square plate. By setting the cross-section of the corrugated scraper to a corrugated shape, the corrugated scraper is facilitated to perform corrugated contraction, and the hollow air cushion is prevented from being rigidly bent and deformed when the corrugated scraper is pushed by an impact, causing it to gradually break away from the fixed connection with the knob block. A corrugated circular hole is provided on the outer side of the corrugated scraper, and a plurality of corrugated circular holes are provided to facilitate the passage of dust and other debris to be cleaned, so that a large amount of dust and other debris that have been cleaned can be prevented from accumulating on the corrugated surface of the corrugated scraper. The concave groove of the cross section is difficult to discharge to the outside of the hollow air cushion. Hard brushes are fixedly connected on both sides of the corrugated scraper. When the hard brush contacts the extension spring, it rubs and cleans it to prevent excessive dust and other debris from accumulating on the surface and inside of the extension spring and affecting the contraction limit of the extension spring. One side of the corrugated scraper is fixedly connected to one side of the knob block. There are multiple corrugated scrapers, and the multiple corrugated scrapers are evenly distributed on one side of the knob block. The corrugated scraper is set to a corrugated shape and the cross-section is also a corrugated shape. There are multiple corrugated circular holes, and the multiple corrugated circular holes are evenly distributed on the outside of the corrugated scraper. There are multiple hard brushes, and the multiple hard brushes are respectively distributed on both sides of the corrugated scraper.

[0018] The present invention has the beneficial effects:

[0019] 1. The present invention changes the hard contact between the lithium battery PACK structure and the external object into elastic contact by fully wrapping the hollow air cushion covering the lithium battery PACK structure, so as to prevent the lithium battery from being subjected to hard impact for a long time and causing a certain degree of damage, which makes it difficult to use normally. By arranging a plurality of sponge square plates inside the hollow air cushion, it is convenient to absorb the infiltrated moisture, and prevent the liquid infiltrated into the hollow air cushion due to the environment from flowing around and soaking various positions inside the hollow air cushion. The rotating corrugated scraper completely scrapes the water-absorbing side of the sponge square plate, so as to prevent the side of the sponge square plate from being contaminated with dust and other debris when it is in a wet state and contains moisture, and gradually accumulates to completely cover the side of the sponge square plate and affect the water absorption effect of the sponge square plate.

[0020] 2. The present invention provides a protective device to fully wrap the hollow air cushion covering the lithium battery PACK structure, so that the hard contact between the lithium battery PACK structure and the external object is changed into elastic contact, so as to prevent the lithium battery from being damaged to a certain extent due to long-term hard impact and being difficult to use normally. By providing a corrugated soft strip that can stretch and shrink on the inner side of the extension spring, it is convenient to limit the deformation of the extension spring, and prevent the extension spring from being bent, dislocated and overlapped due to the uneven direction of the extrusion force of the hollow air cushion, which causes a certain degree of damage to the spring. By providing a plurality of exhaust circular holes, it is convenient to quickly discharge the internal gas of the hollow air cushion when it is impacted, leaving space for compression deformation, and preventing the hollow air cushion from being compressed to a large extent when it is hit too hard, resulting in a large amount of internal gas concentratedly accumulated to produce high-pressure explosion. The extension force of the extension spring is used to boost the hollow air cushion from the inside of the hollow air cushion to facilitate its plastic recovery, and prevent the hollow air cushion from being easily deformed and damaged when it is hit too hard and compressed for a long time, and it is difficult to plastically rebound, so as to protect the lithium battery PACK structure.

[0021] 3. The present invention provides a water absorption device and multiple sponge square plates inside the hollow air cushion to facilitate absorption of infiltrated moisture, thereby preventing liquid infiltrated into the hollow air cushion due to environmental influences from flowing around inside the hollow air cushion and wetting various locations. When the hollow air cushion is hit or the knob block is manually pushed to compress the hollow air cushion, the sponge square plates are squeezed to drain water, thereby preventing the sponge square plates from absorbing moisture for a long time in a low temperature and humid environment and causing the internal moisture to be difficult to dry quickly and separate the sponge square plates. Multiple built-in square rods are provided between the spring coils of the extension spring so that the extension spring will not be compressed to a fully contracted state for a long time when the compression force is too large, thereby preventing the extension spring from being in a fully contracted state for a long time when the extension spring is subjected to a fully contracted state and causing the extension spring to gradually lose its spring extension performance and become difficult to use. When the extension spring is extended, the compressed sponge square plate is driven to expand together, thereby preventing the sponge square plate from being difficult to expand and recover to its initial state after being tightly compressed for a long time to absorb moisture. The movable semi-arc scraper slides and scrapes the inner wall of the circular through hole to prevent the accumulation of more and more dust and other debris in the circular through hole and affecting the contraction of the extension spring.

[0022] 4. The present invention provides a cleaning device, and the rotating corrugated scraper completely scrapes the water-absorbing side of the sponge square plate to prevent the side of the sponge square plate from being contaminated with dust and other debris when it is in a wet state and contains water, and gradually accumulates to completely cover the side of the sponge square plate, affecting the water absorption effect of the sponge square plate; the cross-section of the corrugated scraper is set to be corrugated to facilitate the corrugated contraction of the corrugated scraper, and the hollow air cushion is prevented from being rigidly bent and deformed when the corrugated scraper is pushed by an impact, causing it to gradually break away from the fixed connection with the knob block; a plurality of corrugated circular holes are provided on the corrugated surface for easy passage of dust and other debris to be cleared, and a large amount of dust and other debris that have been cleared is prevented from accumulating in the concave groove of the corrugated cross-section of the corrugated scraper, which is difficult to be discharged to the outside of the hollow air cushion; the hard brush rubs and cleans the extension spring when it contacts the extension spring, and prevents excessive accumulation of dust and other debris on the surface and inside of the extension spring, which affects the contraction limit of the extension spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the waterproof lithium battery PACK structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the waterproof lithium battery PACK structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the protective device of the present invention;

[0026] Figure 4 This is a schematic diagram of the enlarged structure of position A inside the protective device of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal structure of the water absorption device of the present invention;

[0028] Figure 6 This is an enlarged structural diagram of location B inside the water absorbing device of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the cleaning device of the present invention;

[0030] Figure 8 It is a schematic diagram of the partial structure of the cleaning device of the present invention;

[0031] In the figure: 1. knob block; 2. protective device; 3. water absorption device; 4. cleaning device; 201. hollow air cushion; 202. exhaust circular hole; 203. extension spring; 204. arc soft strip; 301. sponge square plate; 302. round through hole; 303. built-in square rod; 304. semi-arc scraper; 401. corrugated scraper; 402. wave surface circular hole; 403. hard brush. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0033] For the first embodiment, please refer to Figure 1-Figure 4 The present invention is a waterproof lithium battery PACK structure with impact buffering effect, comprising:

[0034] The knob block 1 separates the components from foreign objects by a distance to prevent the components of the lithium battery pack from directly contacting foreign objects after installation;

[0035] A protective device 2, the protective device 2 is used to wrap the lithium battery pack and elastically contact with foreign objects;

[0036] A water absorbing device 3, the water absorbing device 3 is used to dilute a portion of the liquid that penetrates into the protective device 2;

[0037] The cleaning device 4 is driven by the knob block 1 to scrape and clean the surface of the water absorbing device 3;

[0038] One side of the knob block 1 passes through the outside of the protective device 2 and is rotatably connected to the protective device 2, one side of the knob block 1 is fixedly connected to one side of the cleaning device 4, the inner wall of the protective device 2 is fixedly connected to one side of the water absorbing device 3, a plurality of water absorbing devices 3 are provided, and the plurality of water absorbing devices 3 are evenly distributed on the inner wall of the protective device 2, a plurality of cleaning devices 4 are provided, and the plurality of cleaning devices 4 are evenly distributed on one side of the knob block 1;

[0039] Wherein, the protection device 2 comprises:

[0040] A hollow air cushion 201, which is used to wrap the lithium battery pack and elastically contact with foreign objects;

[0041] The hollow air cushion 201 is sleeved on the knob block 1 and is rotatably connected to the knob block 1. A plurality of knob blocks 1 are provided, and the plurality of knob blocks 1 are evenly distributed on the outside of the hollow air cushion 201.

[0042] An exhaust circular hole 202 is provided on the outer side of the hollow air cushion 201, an extension spring 203 is fixedly connected to the inner wall of the hollow air cushion 201, and an arc-shaped soft strip 204 is fixedly connected to the inner wall of the hollow air cushion 201;

[0043] One end of the extension spring 203 penetrates the water absorbing device 3 and is fixedly connected to the water absorbing device 3. A plurality of extension springs 203 are provided, and the plurality of extension springs 203 are evenly distributed on the inner wall of the hollow air cushion 201.

[0044] There are multiple exhaust holes 202, and the multiple exhaust holes 202 are evenly distributed on the outside of the hollow air cushion 201. There are multiple arc-shaped soft strips 204, and the multiple arc-shaped soft strips 204 are evenly distributed on the inner wall of the hollow air cushion 201. When in use, the lithium battery pack is placed inside the protective device 2, so that the protective device 2 fully wraps it and elastically contacts the foreign object. At the same time, the water absorption device 3 in the protective device 2 dilutes the infiltrated liquid. When the protective device 2 is collided and squeezed, the water absorption device 3 is squeezed and drained so as to be repeatedly used for water absorption. At the same time, the knob block 1 can be turned at any time to drive the cleaning device 4 to dilute the water absorption device. The side of the device 3 is scraped and cleaned, and the produced lithium battery PACK structure is placed from the top of the hollow air cushion 201 and fixed on the inner side of the hollow air cushion 201. The top of the placed lithium battery PACK structure is the place where the wire ends are placed, which is convenient for docking with other electrical appliances. The hollow air cushion 201 fully wraps the lithium battery PACK structure except for the top wire end docking place, that is, the surrounding and bottom surfaces. The hollow air cushion 201 that fully wraps the lithium battery PACK structure changes the hard contact between the lithium battery PACK structure and the external object into elastic contact. After the hollow air cushion 201 is hit by the external object, it is compressed inwardly. The hollow air cushion 201 is pressed inwardly. When the hollow air cushion 201 is compressed, the stretch spring 203 on the inner wall is compressed. By arranging multiple stretch springs 203 on the inner wall of the hollow air cushion 201, it is convenient for the hollow air cushion 201 to have a certain buffering effect when it is suddenly hit. At the same time, the corrugated soft strip inside the stretch spring 203 is also compressed to perform irregular contraction inside the stretch spring 203. By arranging the corrugated soft strip that can expand and contract inside the stretch spring 203, it is convenient to limit the deformation of the stretch spring 203. At the same time, when the hollow air cushion 201 is impacted and compressed, a large amount of gas inside is quickly discharged to the outside through the exhaust circular hole 202. By arranging multiple exhaust circular holes 202, When the hollow air cushion 201 is hit, the internal gas is quickly discharged to leave space for compression deformation. When the hollow air cushion 201 is not hit by an external object, the extension spring 203 also loses its pushing force. The extension spring 203 that has lost its pushing force pushes the outer layer of the hollow air cushion 201 from the inner wall of the hollow air cushion 201 through the extension force to gradually expand and recover outward to facilitate the next impact buffering. When the hollow air cushion 201 expands and recovers, the external gas re-enters the interior of the hollow air cushion 201 through the exhaust circular hole 202 again, and the hollow air cushion 201 is pushed from the inside of the hollow air cushion 201 by the extension force of the extension spring 203 to facilitate its plastic recovery.

[0045] For the second embodiment, please refer to Figure 1-Figure 8The present invention provides a waterproof lithium battery PACK structure with impact buffering effect: the water absorption device 3 includes a sponge square plate 301, a round through hole 302 is opened on one side of the sponge square plate 301, a built-in square rod 303 is fixedly connected to the inner wall of the round through hole 302, a semi-arc scraper 304 is fixedly connected to one end of the built-in square rod 303, one side of the sponge square plate 301 is fixedly connected to the inner wall of the hollow air cushion 201, the inner wall of the round through hole 302 is fixedly connected to the outer side of the extension spring 203, a plurality of sponge square plates 301 are provided, and the plurality of sponge square plates 301 are evenly distributed on the inner wall of the hollow air cushion 201, a plurality of round through holes 302 are provided, and the plurality of round through holes 302 are evenly distributed on one side of the sponge square plate 301, a plurality of built-in square rods 303 are provided, and the plurality of built-in square rods 303 are evenly distributed on the inner wall of the round through hole 302;

[0046] The cleaning device 4 includes a corrugated scraper 401, a corrugated circular hole 402 is provided on the outer side of the corrugated scraper 401, hard brushes 403 are fixedly connected to both sides of the corrugated scraper 401, one side of the corrugated scraper 401 is fixedly connected to one side of the knob block 1, a plurality of corrugated scrapers 401 are provided, and the plurality of corrugated scrapers 401 are evenly distributed on one side of the knob block 1, the corrugated scraper 401 is arranged in a corrugated shape and the cross section is also in a corrugated shape, a plurality of corrugated circular holes 402 are provided, and the plurality of corrugated circular holes 402 are evenly distributed on the outer side of the corrugated scraper 401, a plurality of hard brushes 403 are provided, and the plurality of hard brushes 403 are respectively distributed on both sides of the corrugated scraper 401. When in use, the air infiltrated into the hollow air cushion 201 from the exhaust circular hole 202 due to the environment The moisture will come into contact with the sponge square plate 301 and be diluted by the sponge square plate 301. By arranging a plurality of sponge square plates 301 inside the hollow air cushion 201, it is convenient to absorb the infiltrated moisture. When the hollow air cushion 201 is impacted and gradually compressed, the outer inner wall will gradually approach the sponge square plate 301 until it comes into contact with the sponge square plate 301 and continues to squeeze the sponge square plate 301. When the sponge square plate 301 is squeezed, it is gradually compressed and the moisture absorbed inside is gradually discharged. When the hollow air cushion 201 is impacted or the knob block 1 is manually pushed to compress the hollow air cushion 201, the sponge square plate 301 is squeezed and the water is drained. At the same time, by arranging a plurality of sponge square plates 301 inside the hollow air cushion 201 to cover its inner wall, it is avoided that the inner wall of the hollow air cushion 201 is compressed for a long time The friction between the inner and outer parts causes damage, resulting in moisture penetrating into the lithium battery PACK structure through the hollow air cushion 201. The moisture squeezed out of the sponge square plate 301 flows out of the hollow air cushion 201 through the exhaust circular hole 202. When the extension spring 203 is compressed, it pushes the built-in square rod 303 sandwiched inside to move together in the circular through hole 302 toward the inner layer of the hollow air cushion 201. The movement of the built-in square rod 303 drives the semi-arc scraper 304 at one end to move together. Multiple built-in square rods 303 are arranged between the spring coils of the extension spring 203 so that the extension spring 203 will not be compressed to a fully contracted state. When the hollow air cushion 201 loses its impact force, the extension spring 203 extends and pushes the built-in square rod 303 and the semi-arc scraper 304 on the inside to gradually move toward the sponge square. When the expansion spring 203 is extended, the compressed sponge square plate 301 is expanded together with it. When the built-in square rod 303 drives the semi-arc scraper 304 to gradually move toward the outside of the round through hole 302, the semi-arc scraper 304 is in contact with the inner wall of the round through hole 302 at all times. The moving semi-arc scraper 304 slides and scrapes the inner wall of the round through hole 302. By rotating the knob block 1, the waveform scraper 401 on one side is driven to rotate on the side of the sponge square plate 301 inside the hollow air cushion 201. When the waveform scraper 401 rotates, the side away from the knob block 1 is in contact with the side of the sponge square plate 301 at all times. The rotating waveform scraper 401 comprehensively scrapes the water-absorbing side of the sponge square plate 301. The cross section of the waveform scraper 401 is also set to a waveform shape.The corrugated scraper 401 can gradually shrink in the direction of the sponge square plate 301 when being pushed by the hollow air cushion 201. The corrugated scraper 401 is convenient for shrinking in the corrugated shape by setting the cross section of the corrugated scraper 401 to be corrugated. At the same time, a plurality of corrugated circular holes 402 are provided on the surface of the corrugated scraper 401 to facilitate the passage of dust and other debris that have been cleaned. By providing a plurality of corrugated circular holes 402 that facilitate the passage of dust and other debris that have been cleaned, the corrugated scraper 401 drives the hard brushes 403 on both sides to rotate together when rotating. When the hard brushes 403 rotate, they intermittently contact the surface of the extension spring 203. When the hard brushes 403 contact the extension spring 203, they rub and clean it.

[0047] When the present invention is operated and used, the lithium battery pack is placed inside the protective device 2 so that the protective device 2 fully wraps it and elastically contacts the foreign object. At the same time, the water absorption device 3 in the protective device 2 dilutes the infiltrated liquid. When the protective device 2 is collided and squeezed, the water absorption device 3 is squeezed and drained so as to be repeatedly used for water absorption. At the same time, the knob block 1 can be turned at any time to drive the cleaning device 4 to scrape and clean the side of the water absorption device 3. The produced lithium battery PACK structure is placed from the top of the hollow air cushion 201 and fixed on the inner side of the hollow air cushion 201. The top of the placed lithium battery PACK structure is the place where the wire ends are placed, which is convenient for docking with other electrical appliances. The hollow air cushion 201 docks the lithium battery PACK structure except for the wire ends at the top. That is, the four sides and the bottom surface are fully wrapped, and the hollow air cushion 201 that fully wraps the lithium battery PACK structure changes the hard contact between the lithium battery PACK structure and the external object into elastic contact. After the hollow air cushion 201 is hit by the external object, it is compressed inwardly. When the hollow air cushion 201 is compressed inwardly, the extension spring 203 on the inner wall is compressed. By arranging a plurality of extension springs 203 on the inner wall of the hollow air cushion 201, it is convenient for the hollow air cushion 201 to have a certain buffering effect when it is suddenly hit. At the same time, the corrugated soft strip inside the extension spring 203 is also compressed to perform irregular shape contraction inside the extension spring 203. By arranging the corrugated soft strip that can expand and contract inside the extension spring 203, it is convenient to change the extension spring 203 The hollow air cushion 201 is limited in shape, and at the same time, when the hollow air cushion 201 is compressed by the impact, a large amount of gas inside is quickly discharged to the outside through the exhaust circular hole 202. By setting a plurality of exhaust circular holes 202, it is convenient for the hollow air cushion 201 to quickly discharge the internal gas when it is impacted, leaving space for compression deformation. When the hollow air cushion 201 loses the impact of the external object, the extension spring 203 also loses the pushing force. The extension spring 203 that loses the pushing force pushes the inner wall of the hollow air cushion 201 through the extension force to push the outer layer of the hollow air cushion 201 gradually to the outside to expand and recover, so as to facilitate the next impact buffering. When the hollow air cushion 201 expands and recovers, the external gas re-enters the hollow air cushion 201 through the exhaust circular hole 202 again, and the hollow air cushion 201 is pressed against the hollow air cushion from the inside through the extension force of the extension spring 203. The air cushion 201 is pushed to facilitate its plastic recovery. The moisture that penetrates into the hollow air cushion 201 from the exhaust hole 202 due to the environment will contact with the sponge square plate 301 and be diluted by the sponge square plate 301. By arranging multiple sponge square plates 301 inside the hollow air cushion 201, it is convenient to absorb the infiltrated moisture. When the hollow air cushion 201 is impacted and gradually compressed, the outer inner wall will gradually approach the sponge square plate 301 until it contacts the sponge square plate 301 and continues to squeeze the sponge square plate 301. When the sponge square plate 301 is squeezed, it is gradually compressed and the moisture absorbed inside is gradually discharged. When the hollow air cushion 201 is impacted or the knob block 1 is manually pushed to compress the hollow air cushion 201, the sponge square plate 301 is squeezed to drain the water.At the same time, multiple sponge square plates 301 are arranged inside the hollow air cushion 201 to cover its inner wall, so as to prevent the inner wall of the hollow air cushion 201 from being damaged by friction with the outside for a long time, so as to prevent moisture from penetrating into the lithium battery PACK structure through the hollow air cushion 201. The moisture squeezed out of the sponge square plate 301 flows out of the hollow air cushion 201 through the exhaust circular hole 202. When the extension spring 203 is compressed, it pushes the built-in square rod 303 mixed inside to move together in the circular through hole 302 toward the inner layer of the hollow air cushion 201. The movement of the built-in square rod 303 drives the semi-arc scraper 304 at one end. The inner side of the hollow air cushion 201 is provided with a plurality of built-in square rods 303, which are arranged between the spring coils of the stretch spring 203 so that the stretch spring 203 will not be compressed to a fully contracted state. When the hollow air cushion 201 loses its impact force, the stretch spring 203 stretches and pushes the inner built-in square rods 303 and the semi-arc scraper 304 to gradually move toward the outer side of the sponge square plate 301. When the stretch spring 203 stretches, it drives the compressed sponge square plate 301 to expand together. When the built-in square rods 303 drive the semi-arc scraper 304 to gradually move toward the outer side of the round through hole 302, the semi-arc scraper 304 is always in contact with the inner wall of the round through hole 302. The moving semi-arc scraper 304 slides and scrapes the inner wall of the circular through hole 302, and the waveform scraper 401 on one side is driven to rotate on the side of the sponge square plate 301 inside the hollow air cushion 201 by rotating the knob block 1. When the waveform scraper 401 rotates, the side away from the knob block 1 is always in contact with the side of the sponge square plate 301. The rotating waveform scraper 401 comprehensively scrapes the water-absorbing side of the sponge square plate 301. The cross section of the waveform scraper 401 is also set to a waveform shape, so that the waveform scraper 401 can gradually move toward the sponge square plate 301 when pushed by the hollow air cushion 201. 01 direction for waveform contraction, by setting the cross section of the waveform scraper 401 to be waveform, it is convenient for the waveform scraper 401 to perform waveform contraction, and at the same time, a plurality of wave surface circular holes 402 are provided on the surface of the waveform scraper 401 to facilitate the passage of dust and other debris that have been cleaned. By providing a plurality of wave surface circular holes 402 that facilitate the passage of dust and other debris that have been cleaned, the waveform scraper 401 drives the hard brushes 403 on both sides to rotate together when rotating, and the hard brushes 403 intermittently contact the surface of the extension spring 203 when rotating, and the hard brushes 403 rub and clean the extension spring 203 when contacting it.

[0048] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A waterproof lithium battery PACK structure with impact buffering effect, characterized in that: include: The knob block (1) separates the components from foreign objects by a distance to prevent the components of the lithium battery pack from directly contacting foreign objects after installation; A protective device (2), the protective device (2) is used to wrap and cover the lithium battery pack and to elastically contact with foreign objects; A water absorbing device (3), the water absorbing device (3) is used to dilute a portion of the liquid that has penetrated into the protective device (2); A cleaning device (4), wherein the cleaning device (4) is driven by the knob block (1) to scrape and clean the surface of the water absorbing device (3); One side of the knob block (1) passes through the outside of the protective device (2) and is rotatably connected to the protective device (2); one side of the knob block (1) is fixedly connected to one side of the cleaning device (4); the inner wall of the protective device (2) is fixedly connected to one side of the water absorbing device (3); a plurality of the water absorbing devices (3) are provided, and the plurality of the water absorbing devices (3) are evenly distributed on the inner wall of the protective device (2); a plurality of the cleaning devices (4) are provided, and the plurality of the cleaning devices (4) are evenly distributed on one side of the knob block (1); Wherein, the protective device (2) comprises: A hollow air cushion (201), the hollow air cushion (201) being used to wrap and cover the lithium battery pack and to elastically contact with an external object; The hollow air cushion (201) is sleeved on the knob block (1) and is rotatably connected to the knob block (1); a plurality of knob blocks (1) are provided, and the plurality of knob blocks (1) are evenly distributed on the outside of the hollow air cushion (201).

2. The waterproof lithium battery PACK structure with impact buffering effect according to claim 1, characterized in that: An exhaust circular hole (202) is provided on the outer side of the hollow air cushion (201), an extension spring (203) is fixedly connected to the inner wall of the hollow air cushion (201), and an arc-shaped soft strip (204) is fixedly connected to the inner wall of the hollow air cushion (201).

3. The waterproof lithium battery PACK structure with impact buffering effect according to claim 2, characterized in that: One end of the stretch spring (203) passes through the water absorbing device (3) and is fixedly connected to the water absorbing device (3); a plurality of the stretch springs (203) are provided, and the plurality of the stretch springs (203) are evenly distributed on the inner wall of the hollow air cushion (201).

4. The waterproof lithium battery PACK structure with impact buffering effect according to claim 2, characterized in that: A plurality of the exhaust circular holes (202) are provided, and the plurality of the exhaust circular holes (202) are evenly distributed on the outside of the hollow air cushion (201); a plurality of the arc-shaped soft strips (204) are provided, and the plurality of the arc-shaped soft strips (204) are evenly distributed on the inner wall of the hollow air cushion (201).

5. The waterproof lithium battery PACK structure with impact buffering effect according to claim 1, characterized in that: The water absorbing device (3) comprises a sponge square plate (301), one side of the sponge square plate (301) is provided with a round through hole (302), the inner wall of the round through hole (302) is fixedly connected to a built-in square rod (303), and one end of the built-in square rod (303) is fixedly connected to a semi-arc scraper (304).

6. The waterproof lithium battery PACK structure with impact buffering effect according to claim 5, characterized in that: One side of the sponge square plate (301) is fixedly connected to the inner wall of the hollow air cushion (201), and the inner wall of the round through hole (302) is fixedly connected to the outer side of the extension spring (203).

7. The waterproof lithium battery PACK structure with impact buffering effect according to claim 5, characterized in that: The sponge square plates (301) are provided in plurality, and the plurality of sponge square plates (301) are evenly distributed on the inner wall of the hollow air cushion (201); the round through holes (302) are provided in plurality, and the plurality of the round through holes (302) are evenly distributed on one side of the sponge square plates (301); and the built-in square rods (303) are provided in plurality, and the plurality of the built-in square rods (303) are evenly distributed on the inner wall of the round through holes (302).

8. The waterproof lithium battery PACK structure with impact buffering effect according to claim 1, characterized in that: The cleaning device (4) comprises a corrugated scraper (401), a corrugated circular hole (402) is provided on the outer side of the corrugated scraper (401), and hard brushes (403) are fixedly connected to both sides of the corrugated scraper (401).

9. The waterproof lithium battery PACK structure with impact buffering effect according to claim 8, characterized in that: One side of the corrugated scraper (401) is fixedly connected to one side of the knob block (1); a plurality of the corrugated scrapers (401) are provided, and the plurality of the corrugated scrapers (401) are evenly distributed on one side of the knob block (1); the corrugated scraper (401) is provided in a corrugated shape and its cross section is also in a corrugated shape.

10. The waterproof lithium battery PACK structure with impact buffering effect according to claim 8, characterized in that: A plurality of the wave surface circular holes (402) are provided, and the plurality of the wave surface circular holes (402) are evenly distributed on the outside of the wave-shaped scraper (401); a plurality of the hard brushes (403) are provided, and the plurality of the hard brushes (403) are respectively distributed on both sides of the wave-shaped scraper (401).

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