Lithium iron battery protection structure for parking

Abstract

The utility model relates to a lithium iron battery protection structure for parking, which belongs to the technical field of battery protection and comprises a battery box, a lithium iron battery body is arranged in the battery box, a connecting column is fixed on the inner bottom wall of the battery box, and a cover plate is fixed on the upper surface of the connecting column. The battery box is provided with a protection mechanism used for protecting the lithium iron battery, and the connecting column is provided with a damping mechanism used for reducing impact on the lithium iron battery. According to the lithium iron battery protection structure for parking, through cooperation of the lock block and the lock cylinder, the lock cylinder can be driven to rotate only when a corresponding key is inserted into the lock cylinder, so that a lithium iron battery is prevented from being stolen, a threaded rod can be driven to rotate through rotation of the lock cylinder, and therefore a threaded block is driven to move, and the safety of the lithium iron battery is improved through movement of the threaded block. And the fixing rod can be driven to move, so that the clamping block is driven to move, the communication hole can be opened, and the lithium iron battery can be conveniently taken out.

Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, specifically a protection structure for lithium iron phosphate batteries used in parking vehicles. Background Technology

[0002] Lithium iron phosphate batteries are a type of battery in the lithium battery family. The positive electrode material is mainly lithium iron phosphate. Compared with traditional lead-acid batteries, lithium-ion batteries have significant advantages in terms of working voltage, energy density, and cycle life.

[0003] For example, Chinese Utility Model Patent Publication No. (CN214706104U) discloses a lithium battery for electric vehicles with a protective structure. This lithium battery includes a lithium battery pack, a pair of pressure plates, a protective shell, and multiple pairs of spring retaining rings. The pair of pressure plates are symmetrically arranged on both sides of the lithium battery pack. Multiple pairs of pressure dividing blocks are connected to the side of the pressure plates closest to the lithium battery pack. Limiting sliding grooves matching the pressure dividing blocks are carved into the pressure plates. The protective shell is located outside the lithium battery pack, and a protective airbag is connected inside the protective shell. The protective airbag is connected to the pressure plates, and an interface airbag connects the protective shell and the lithium battery pack, communicating with the interface airbag. The spring retaining rings are fixedly connected inside the protective shell. The pair of protective shells are symmetrically arranged, and the spring retaining rings penetrate the protective airbag. This technology addresses the problem that existing lithium batteries are typically encased in protective shells, relying mainly on rubber or sponge structures for shock absorption. However, lithium batteries have a high energy density and generally lack sufficient buffer space when subjected to bumps, high temperatures, or impacts, making them highly susceptible to explosions or fires. Furthermore, the shock absorption effect of sponge or rubber is short-lived, significantly decreasing with prolonged use. This not only increases the burden on the electric bicycle frame but also damages the lithium battery pack, shortening its lifespan and affecting rider safety. However, existing batteries struggle to be both easily removable and effectively theft-proof. Easily removable lithium iron phosphate batteries are easily stolen when parked, while batteries fixed to a base are easy to remove and don't provide sufficient shock absorption, impacting practicality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a parking lithium iron phosphate battery protection structure, which has the advantages of convenient placement and removal of lithium iron phosphate batteries, while also providing anti-theft protection. It solves the problems of existing batteries being difficult to remove while effectively preventing theft, lithium iron phosphate batteries that are easy to remove are easily stolen when parked, and batteries fixed to the base are easy to remove and have shock absorption, which affects practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a parking lithium iron phosphate battery protection structure, including a battery box, a lithium iron phosphate battery body is provided inside the battery box, a connecting column is fixed to the inner bottom wall of the battery box, a cover plate is fixed to the upper surface of the connecting column, a protection mechanism for protecting the lithium iron phosphate battery is provided on the battery box, and a shock-absorbing mechanism for reducing the impact on the lithium iron phosphate battery is provided on the connecting column.

[0006] The protection mechanism includes a locking block. A first mounting groove is provided on the left side of the battery box. The locking block is fixed to the inner side of the first mounting groove. A lock cylinder is rotatably connected to the inner side of the locking block through a bearing. A threaded rod is fixed to the right side of the lock cylinder. The other end of the threaded rod is rotatably connected to the inner wall of the right side of the first mounting groove through a bearing. A threaded block is threadedly connected to the outer side of the threaded rod. A fixing component is provided on the threaded block.

[0007] Furthermore, the length of the cover plate is equal to the distance between the left and right inner walls of the battery box, and the width of the cover plate is equal to the distance between the front and rear inner walls of the battery box.

[0008] Furthermore, the outer side of the threaded rod has two threads in opposite directions, which are symmetrically distributed about the central axis of the threaded rod.

[0009] Furthermore, the fixing component includes a fixing rod, a connecting hole is provided on the upper surface of the battery box, a second mounting groove is provided on the inner side of the connecting hole, the front of the threaded block penetrates and extends into the interior of the second mounting groove, and the right side is fixed to one end of the fixing rod, and a locking block is fixed to the other end of the fixing rod.

[0010] Furthermore, there are two threaded blocks, which are symmetrically distributed about the central axis of the threaded rod. The number of the second mounting slots is equal to the number of threaded blocks, and their positions correspond one-to-one.

[0011] Furthermore, the shock absorption mechanism includes a buffer pad, which is fixed to the inner bottom wall of the battery box. A damping pad is fixed to the left side of the connecting column, and a spring is fixed to the left side of the damping pad. A limit block is fixed to the other end of the spring, and a limit rod is fixed to the right side of the limit block. The other end of the limit rod passes through and extends to the inner side of the connecting column, and a support plate is fixed thereto.

[0012] Furthermore, the number of damping pads is not less than two, and the two are grouped together and symmetrically distributed around the central axis of the connecting column.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. This parking lithium iron phosphate battery protection structure, through the cooperation of the lock block and the lock cylinder, can only drive the lock cylinder to rotate when the corresponding key is inserted into it, thereby preventing the theft of lithium iron phosphate batteries. The rotation of the lock cylinder can drive the threaded rod to rotate, thereby driving the threaded block to move. The movement of the threaded block can drive the fixed rod to move, thereby driving the locking block to move, so that the connecting hole can be opened, making it easy to remove the lithium iron phosphate battery.

[0015] 2. This parking lithium iron phosphate battery protection structure, with the cooperation of buffer pads, can buffer the lithium iron phosphate battery when it is subjected to vertical impact force. With the cooperation of springs and damping pads, the support plate can support and dampen the lithium iron phosphate battery from different directions, thereby protecting the lithium iron phosphate battery from shock. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the protection mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the shock absorption mechanism of this utility model;

[0019] In the diagram: 1 Battery box, 2 Lithium iron phosphate battery body, 3 Connecting column, 4 Cover plate, 5 Protection mechanism, 501 Locking block, 502 First mounting slot, 503 Lock cylinder, 504 Threaded rod, 505 Threaded block, 506 Fixing rod, 507 Connecting hole, 508 Second mounting slot, 509 Locking block, 6 Shock absorption mechanism, 601 Buffer pad, 602 Damping pad, 603 Spring, 604 Limiting block, 605 Limiting rod, 606 Support plate. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1This embodiment of a parking lithium iron phosphate battery protection structure includes a battery box 1, inside which is a lithium iron phosphate battery body 2. A connecting post 3 is fixed to the inner bottom wall of the battery box 1. The connecting post 3 is a cuboid with a hollow interior and missing upper and lower surfaces. A cover plate 4 is fixed to the upper surface of the connecting post 3. A protection mechanism 5 is provided on the battery box 1 to protect the lithium iron phosphate battery, which facilitates the removal of the lithium iron phosphate battery and improves the anti-theft performance of the lithium iron phosphate battery. A shock-absorbing mechanism 6 is provided on the connecting post 3 to reduce the impact on the lithium iron phosphate battery and prevent the lithium iron phosphate battery from being damaged when the battery box 1 is impacted.

[0022] The length of the cover plate 4 is equal to the distance between the left and right inner walls of the battery box 1, and the width of the cover plate 4 is equal to the distance between the front and rear inner walls of the battery box 1, so that the structure under the cover plate 4 can be sealed, reducing contact with the outside world and improving service life.

[0023] Please see Figure 2 To facilitate the removal of the lithium iron phosphate battery while enhancing its anti-theft capabilities, the protection mechanism 5 in this embodiment includes a lock block 501. A first mounting groove 502 is provided on the left side of the battery box 1. The lock block 501 is fixed to the inner side of the first mounting groove 502. A lock cylinder 503 is rotatably connected to the inner side of the lock block 501 via a bearing. When someone attempts to steal the battery, the lock cylinder 503 cannot be rotated without a matching key, thus preventing the removal of the lithium iron phosphate battery body 2. A threaded rod 504 is fixed to the right side of the lock cylinder 503. When a matching key is inserted into the lock cylinder 503 and the key is turned, the lock cylinder 503 rotates, causing the threaded rod 504 to rotate. The other end of the threaded rod 504 is rotatably connected to the inner wall of the right side of the first mounting groove 502 via a bearing. A threaded block 505 is threadedly connected to the outer side of the threaded rod 504. The threaded rod 504 drives the threaded block 505 to move. A fixing component is provided on the threaded block 505.

[0024] In this example, the outer side of the threaded rod 504 has two threads in opposite directions, and they are symmetrically distributed about the central axis of the threaded rod 504.

[0025] It should be noted that the fixing assembly includes a fixing rod 506, and a connecting hole 507 is provided on the upper surface of the battery box 1. The inner diameter of the connecting hole 507 is adapted to the outer diameter of the lithium iron phosphate battery body 2. A second mounting groove 508 is provided on the inner side of the connecting hole 507. The front of the threaded block 505 penetrates and extends into the interior of the second mounting groove 508, and its right side is fixed to one end of the fixing rod 506. A locking block 509 is fixed to the other end of the fixing rod 506. The threaded block 505 drives the fixing rod 506 to move, and the fixing rod 506 drives the locking block 509 to move, thereby moving the locking block 509 away and opening the connecting hole 507. 7. Open the package. At this time, the lithium iron phosphate battery body 2 can be taken out. There are two threaded blocks 505, which are symmetrically distributed on the left and right sides of the central axis of the threaded rod 504. Since the outer side of the threaded rod 504 has a bidirectional thread, the two threaded blocks 505 move in opposite directions, allowing the two threaded blocks 505 to move simultaneously. The number of second mounting slots 508 is equal to the number of threaded blocks 505, and their positions correspond one-to-one. The front inner wall of the first mounting slot 502 has two sliding openings. The two threaded blocks 505 are located inside the two sliding openings respectively, and the width of the sliding opening is adapted to the width of the threaded block 505.

[0026] Please see Figure 3 To prevent damage to the lithium iron phosphate battery when the battery box 1 is subjected to impact, the shock absorption mechanism 6 in this embodiment includes a buffer pad 601. The buffer pad 601 is fixed to the inner bottom wall of the battery box 1. When encountering a vertical impact, the locking block 509 can stabilize the position of the lithium iron phosphate battery body 2, and the buffer pad 601 absorbs the impact force to avoid damage to the lithium iron phosphate battery body 2. A damping pad 602 is fixed to the left side of the connecting column 3, and a spring 603 is fixed to the left side of the damping pad 602. The other end of the spring 603 is fixed... A limit block 604 is fixed, and a limit rod 605 is fixed on the right side of the limit block 604. The other end of the limit rod 605 passes through and extends to the inner side of the connecting column 3, and a support plate 606 is fixed thereon. When encountering a horizontal impact, the surrounding support plate 606 will support the lithium iron phosphate battery body 2 to prevent the lithium iron phosphate battery body 2 from colliding with the inner wall of the connecting column 3. The damping pad 602 absorbs the elastic force of the spring 603 to prevent the spring 603 from rebounding and causing repeated collisions between the support plate 606 and the lithium iron phosphate battery body 2.

[0027] In this example, there are no fewer than two damping pads 602, and they are arranged in pairs, symmetrically distributed around the central axis of the connecting post 3, so that the outer side of the lithium iron phosphate battery body 2 is uniformly protected.

[0028] The working principle of the above embodiments is as follows:

[0029] (1) When the vehicle is parked, the lithium iron phosphate battery body 2 is placed inside the battery box 1. If someone wants to steal it, without a matching key, the lock cylinder 503 cannot be turned, and the latch 509 cannot be moved. The latch 509 blocks the connecting hole 507, and the lithium iron phosphate battery body 2 cannot be taken out of the battery box 1. To prevent the lithium iron phosphate battery body 2 from being stolen, when it is necessary to take out the lithium iron phosphate battery body 2, insert the matching key into the lock cylinder 503 and turn the key to make the lock cylinder 503 turn. The rotation of the lock cylinder 503 drives the threaded rod 504 to rotate. The threaded rod 504 drives the threaded block 505 to move. Since the threaded rod 504 has a bidirectional thread on the outside, the two threaded blocks 505 move in opposite directions. The threaded block 505 drives the fixed rod 506 to move. The fixed rod 506 drives the latch 509 to move, thereby moving the latch 509 to open the connecting hole 507. At this time, the lithium iron phosphate battery body 2 can be taken out.

[0030] (2) When the lithium iron phosphate battery body 2 is placed inside the battery box 1, the locking block 509 will keep the lithium iron phosphate battery body 2 fixed. When it encounters a vertical impact, the locking block 509 can stabilize the position of the lithium iron phosphate battery body 2. The buffer pad 601 absorbs the impact force to avoid damage to the lithium iron phosphate battery body 2. When it encounters a horizontal impact, the surrounding support plate 606 will support the lithium iron phosphate battery body 2 to avoid collision between the lithium iron phosphate battery body 2 and the inner wall of the connecting column 3. The damping pad 602 absorbs the elastic force of the spring 603 to avoid the spring 603 rebounding and causing repeated collisions between the support plate 606 and the lithium iron phosphate battery body 2.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A parking iron lithium battery protection structure comprising a battery box (1), characterized in that: The inside of the battery box (1) is provided with an iron lithium battery body (2), the inner bottom wall of the battery box (1) is fixedly provided with a connecting column (3), the upper surface of the connecting column (3) is fixedly provided with a cover plate (4), the battery box (1) is provided with a protection mechanism (5) for protecting the iron lithium battery, and the connecting column (3) is provided with a damping mechanism (6) for reducing the impact on the iron lithium battery. The protection mechanism (5) comprises a lock block (501), a first mounting groove (502) is formed in the left side of the battery box (1), the lock block (501) is fixed to the inner side of the first mounting groove (502), a lock core (503) is rotatably connected to the inner side of the lock block (501) through a bearing, a threaded rod (504) is fixed to the right side of the lock core (503), the other end of the threaded rod (504) is rotatably connected to the right inner wall of the first mounting groove (502) through a bearing, a threaded block (505) is threadedly connected to the outer side of the threaded rod (504), and a fixing assembly is arranged on the threaded block (505).

2. The iron lithium battery protection structure for parking according to claim 1, characterized in that: The length of the cover plate (4) is equal to the distance between the left and right inner walls of the battery box (1), and the width of the cover plate (4) is equal to the distance between the front and rear inner walls of the battery box (1).

3. The iron-lithium battery protection structure for parking according to claim 1, characterized in that: The outer side of the threaded rod (504) is provided with two threads in opposite directions, and the threads are distributed symmetrically left and right around the central axis of the threaded rod (504).

4. The iron-lithium battery protection structure for parking according to claim 1, characterized in that: The fixing assembly comprises a fixing rod (506), a communication hole (507) is formed in the upper surface of the battery box (1), a second mounting groove (508) is formed in the inner side of the communication hole (507), the front surface of the threaded block (505) penetrates and extends into the second mounting groove (508), and the right side is fixed to one end of the fixing rod (506), and the other end of the fixing rod (506) is fixedly connected with a clamping block (509).

5. The iron-lithium battery protection structure for parking according to claim 4, characterized in that: The number of the threaded blocks (505) is two, and they are distributed symmetrically left and right around the central axis of the threaded rod (504), the number of the second mounting grooves (508) is equal to the number of the threaded blocks (505), and they are one-to-one corresponding in position.

6. The iron-lithium battery protection structure for parking according to claim 1, characterized in that: The damping mechanism (6) comprises a buffer pad (601), the buffer pad (601) is fixed to the inner bottom wall of the battery box (1), a damping pad (602) is fixed to the left side of the connecting column (3), a spring (603) is fixed to the left side of the damping pad (602), the other end of the spring (603) is fixedly connected with a limiting block (604), the right side of the limiting block (604) is fixedly connected with a limiting rod (605), the other end of the limiting rod (605) penetrates and extends into the inner side of the connecting column (3) and is fixedly connected with a supporting plate (606).

7. The iron-lithium battery protection structure for parking according to claim 6, characterized in that: The number of the damping pads (602) is not less than two, and two of them are a group, and they are distributed symmetrically around the central axis of the connecting column (3).

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