An anti-collision and self-cooling outdoor lithium battery box

Abstract

The present invention relates to the technical field of lithium batteries, and specifically discloses an outdoor lithium battery box with anti-collision and self-cooling functions, including: an anti-collision housing, on the top of which there is a sealing cover, and an internal lithium battery body and a protective solution are arranged between the anti-collision housing and the sealing cover; further including: a connecting piece, the lower end of which is connected to the top of the internal lithium battery body, wherein the upper end surface of the connecting piece is in a fitting magnetic sliding connection with a magnetic positioning plate embedded in the middle of the sealing cover, and at the same time, elastic telescopic rods are horizontally and equidistantly distributed between the upper end of the connecting piece and the bottom surface of the sealing cover; the highest liquid level of the protective solution is below the middle section of the connecting piece, and the protective solution is used for cooling the internal lithium battery body and buffering and releasing energy for protection. This outdoor lithium battery box with anti-collision and self-cooling functions uses the protective solution to isolate and protect the lithium battery, cool the lithium battery, and release kinetic energy under collision, reducing the internal damage of the lithium battery box caused by the shock external force under the collision effect.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and specifically to an outdoor lithium battery box with anti-collision and self-cooling functions. Background Art

[0002] An outdoor lithium battery box is a portable small power supply component, which includes a charging and discharging component of the main body and an external protective housing, and has an external power start switch, an electrically connected USB interface, a power-on interface, etc. At the same time, for convenient carrying, a pulley component for easy movement and an installation component for improving positioning stability are usually provided on its exterior.

[0003] In order to reduce external force collision shock and deformation damage during movement and use of the existing outdoor lithium battery box, an anti-collision cross beam and an elastic buffer energy release structure at the installation base position are generally provided outside the lithium battery box body. While improving the stability of lithium battery use, it reduces potential safety hazards such as spontaneous combustion caused by deformation damage of the lithium battery due to external force impact collision; however, when using a single external anti-collision cross beam component, although it can reduce the collision impact and deformation damage in the corresponding direction, the external force directions of collision and shock on the lithium battery box during use are diverse. Under the influence of non-direct alignment collisions or the impact of action and reaction forces caused by collisions, the internal electrical components of the lithium battery box are still prone to damage due to external forces, affecting the stable use function of the lithium battery box, resulting in low kinetic energy release efficiency under collision of the existing outdoor lithium battery box and poor anti-collision protection effect.

[0004] In view of the above problems, there is an urgent need for innovative design based on the original outdoor lithium battery box. Summary of the Invention

[0005] The purpose of the present invention is to provide an outdoor lithium battery box with anti-collision and self-cooling functions, so as to solve the problem that in the existing outdoor lithium battery box, under the influence of non-direct alignment collisions or the impact of action and reaction forces caused by collisions, the internal electrical components of the lithium battery box are still prone to damage due to external forces, affecting the stable use function of the lithium battery box as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An outdoor lithium battery box with anti-collision and self-cooling functions, comprising:

[0007] An anti-collision housing, on the top of which there is a sealing cover, and an internal lithium battery body and a protective solution are provided between the anti-collision housing and the sealing cover;

[0008] It further includes: a connecting member, the lower end of which is connected to the top of the internal lithium battery body, wherein the upper end surface of the connecting member is in a magnetic sliding connection that fits with a magnetic positioning plate embedded in the middle of the sealing cover, and at the same time, elastic telescopic rods are horizontally and equidistantly distributed between the upper end of the connecting member and the bottom surface of the sealing cover;

[0009] The highest liquid level of the protective solution is located below the middle section of the connecting piece. The protective solution is used for cooling the built-in lithium battery body and buffering and releasing energy for protection. A gas pressurizing component is also fixed on the top of the sealing cover. A gas guiding component is further arranged on the front side of the anti-collision housing. The air inlet of the gas guiding component is connected to the gas pipeline of the gas pressurizing component, and the air outlet of the gas guiding component is located at the inner bottom of the anti-collision housing. At the same time, a first valve body is arranged at the connection between the air inlet of the gas guiding component and the gas pipeline of the gas pressurizing component. The gas pressurizing component drives the air flow to flow, and the air flow makes the movement trend of the regular protective solution disordered, reducing the impact kinetic energy of the built-in lithium battery body and the anti-collision housing caused by the movement of the protective solution.

[0010] Preferably, a gap is reserved between the bottom of the built-in lithium battery body and the inner bottom wall of the anti-collision housing, and the protective solution inside the anti-collision housing gives an upward floating thrust to the built-in lithium battery body.

[0011] Preferably, a limiting ring body is arranged at the connection between the sealing cover and the elastic telescopic rod;

[0012] The limiting ring body is horizontally hinged and rotatably arranged with the tail end of the elastic telescopic rod, and the head end of the elastic telescopic rod is horizontally hinged with the connecting piece.

[0013] Preferably, the connecting piece is arranged in an "I" - shaped structure. The horizontal plane where the uniformly distributed elastic telescopic rods are located is perpendicular to the connecting piece, and the horizontal plane where the elastic telescopic rods are located is above the horizontal plane of the middle section position of the connecting piece.

[0014] Preferably, a second valve body is further fixed on the side of the top of the sealing cover far from the gas pressurizing component. An electricity - conducting interface and its protective cover body are also arranged on the top of the sealing cover.

[0015] Preferably, a folding pull rod and a folding wheel set are also installed on the back of the anti - collision housing. The folding pull rod and the folding wheel set are used for the portable movement of the lithium battery box;

[0016] The folding pull rod and the folding wheel set are limited by bolts after being folded.

[0017] Preferably, a limiting ring body is arranged at the connection between the sealing cover and the elastic telescopic rod; the end of the elastic telescopic rod is hinged and rotatably arranged with the rotating part on the limiting ring body, and at the same time, the rotating part is rotatably connected with the limiting ring body;

[0018] And the head end of the elastic telescopic rod is connected with the elastic part on the connecting piece.

[0019] Preferably, the vertical rotation direction of the rotating part and the limiting ring body is perpendicular to the horizontal rotation direction of the elastic telescopic rod and the rotating part; the rotating part and the limiting ring body are rotatably connected by a rotating shaft;

[0020] Meanwhile, the elastic member is used for multi-directional rotation adjustment at the connection between the first end of the telescopic rod and the connecting member.

[0021] Preferably, an anti-collision member is provided at the bottom of the built-in lithium battery body. Meanwhile, the magnetic positioning plate penetrates through the middle of the anti-collision housing, and an elastic sealing belt is provided at the penetration.

[0022] Moreover, a top cover is fixed to the top of the anti-collision housing directly above the magnetic positioning plate. An electromagnet and a return spring are fixed inside the top cover. The bottom of the return spring is connected to the top edge of the magnetic positioning plate, and an active gap is reserved between the bottom surface of the electromagnet and the magnetic positioning plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: For this anti-collision and self-cooling outdoor lithium battery box, a protective solution is used to isolate and protect the lithium battery, cool the lithium battery, and release kinetic energy under collision, reducing internal damage to the lithium battery box under the impact force caused by collision. The specific content is as follows:

[0024] 1. The protective solution is provided, and its liquid level is above the built-in lithium battery body and below the middle section of the connecting member, providing immersion isolation protection for the built-in lithium battery body. The protective solution has buoyancy to lift the built-in lithium battery body, so that when the bottom of the battery box collides, the external force will not directly act on the built-in lithium battery body to cause damage, and the kinetic energy is released through the protective solution.

[0025] Furthermore, an elastic telescopic rod and a connecting member are provided to install and position the built-in lithium battery body. At the same time, the elastic telescopic rod is installed in a hinged rotation and self-telescopic manner. When the battery box is subjected to external collision, the connecting member and the magnetic positioning plate move relatively and reset, causing the built-in lithium battery body in the battery box to move in the protective solution, achieving an energy release effect through the movement of the liquid. At the same time, the liquid level of the protective solution is above the top of the built-in lithium battery body, and the protective effect of the built-in lithium battery body is better when the liquid movement releases energy.

[0026] Still further, under the action of components such as a gas pressurization assembly and a gas guiding member, the built-in lithium battery body can be cooled by the protective solution under the action of gas flow.

[0027] 2. An elastic member and a rotating member are additionally provided to limit the installation of the elastic telescopic rod, so that when the built-in lithium battery body can horizontally move and release energy due to collision, it can also perform swaying energy unloading, improving the anti-collision protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front structural schematic diagram of the present invention;

[0029] Figure 2 Schematic diagram of the back structure of the present invention;

[0030] Figure 3 Schematic diagram of the internal structure of the present invention;

[0031] Figure 4 Schematic diagram of the installation structure of the elastic telescopic rod in the first embodiment of the present invention;

[0032] Figure 5 Schematic diagram of the position of the built-in lithium battery body of the present invention inside the anti-collision housing;

[0033] Figure 6 Schematic diagram of the distribution state of the air duct member of the present invention inside the anti-collision housing;

[0034] Figure 7 Schematic diagram of the installation structure of the folding pull rod and the folding wheel set of the present invention;

[0035] Figure 8 Schematic diagram of the unfolded structure of the folding pull rod of the present invention;

[0036] Figure 9 Schematic diagram of the installation structure of the elastic telescopic rod in the second embodiment of the present invention;

[0037] Figure 10 Schematic diagram of the upward view structure of the magnetic positioning plate in the second embodiment of the present invention;

[0038] Figure 11 Schematic diagram of the downward view structure of the magnetic positioning plate in the second embodiment of the present invention.

[0039] In the figure: 1. Anti-collision housing; 2. Sealing cover; 3. Built-in lithium battery body; 4. Connector; 5. Elastic telescopic rod; 501. Limit ring body; 502. Rotating member; 503. Elastic member; 6. Magnetic positioning plate; 7. Top cover; 8. Electromagnet; 9. Return spring; 10. Gas pressurization assembly; 11. Air duct member; 12. First valve body; 13. Second valve body; 14. Folding pull rod; 15. Folding wheel set. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1: Please refer to Figures 1 - 8The present invention provides a technical solution: an anti-collision type self-cooling outdoor lithium battery box, comprising: an anti-collision shell 1, a sealing cover 2 is arranged on the top of the anti-collision shell 1, and a built-in lithium battery body 3 and a protective solution are arranged between the anti-collision shell 1 and the sealing cover 2; a spacing is reserved between the bottom of the built-in lithium battery body 3 and the inner wall of the bottom of the anti-collision shell 1, and the protective solution inside the anti-collision shell 1 gives the built-in lithium battery body 3 a buoyancy thrust; the use of the above technical solution makes the bottom of the built-in lithium battery body 3 suspended, and the buoyancy thrust is given by the protective solution, and the connector 4 installed on the top of the built-in lithium battery body 3 achieves a positioning effect. When the anti-collision shell 1 collides with the edge and the bottom, the kinetic energy directly applied to the built-in lithium battery body 3 by the collision external force and the vibration external force is reduced, so that the first step achieves the effect of the built-in lithium battery body 3, and the kinetic energy is conducted by the protective solution to absorb and release the kinetic energy.

[0042] The protective solution includes but is not limited to the coolant in the conventional immersion battery cooling system, and lithium ion compounds such as lithium bis(trifluoromethanesulfonyl imide); non-aqueous solutions such as mineral oil, silicone oil, natural esters, etc.; it uses the effect of liquid to drive the working temperature of the lithium battery to achieve a cooling effect, and at the same time uses the liquid to reduce shock and release energy during external force collision or use of the lithium battery.

[0043] It also includes: a connector 4, the lower end of which is connected to the top of the built-in lithium battery body 3, wherein the upper end surface of the connector 4 and the magnetic positioning plate 6 embedded in the middle of the sealing cover 2 are in a fitted magnetic sliding connection, and at the same time, elastic telescopic rods 5 are horizontally and evenly distributed between the upper end of the connector 4 and the bottom surface of the sealing cover 2; the highest liquid level of the protective solution is located below the middle section of the connector 4, and the protective solution is used for cooling and buffering the energy release protection of the built-in lithium battery body 3; a limiting ring body 501 is provided at the connection between the sealing cover 2 and the elastic telescopic rod 5; the limiting ring body 501 and the tail end of the elastic telescopic rod 5 are horizontally hinged and rotatably arranged, wherein the head end of the elastic telescopic rod 5 and the connector 4 are horizontally hinged; the connector 4 is arranged in an "I"-shaped structure, wherein the horizontal plane where the evenly distributed elastic telescopic rods 5 are located is perpendicular to the connector 4, and the horizontal plane where the elastic telescopic rods 5 are located is located above the horizontal plane where the middle section of the connector 4 is located.

[0044] In the above technical solution, when an external collision acts on the anti-collision housing 1, the power of the collision is released by the protection solution, and at the same time, the protection solution is caused to move. During this movement process, since the built-in lithium battery body 3 is located below the liquid level, the movement amplitude of the liquid level is large, and the force applied to the built-in lithium battery body 3 is reduced. Under the action of the collision, an external force is also applied to the built-in lithium battery body 3, and the rotational installation and telescopic movement of the elastic telescopic rod 5 can reset the built-in lithium battery body 3 under the action of the external force during movement. During this process, kinetic energy is released, reducing the damage to the internal electrical components of the built-in lithium battery body 3 caused by kinetic energy, and achieving the anti-collision protection effect of the built-in lithium battery body 3.

[0045] At the same time, as shown in Figure 1 and Figure 6 In the present technical solution, a gas pressurizing assembly 10 is further fixed on the top of the sealing cover 2. Among them, a gas conduit member 11 is provided on the front side of the anti-collision housing 1. The air inlet of the gas conduit member 11 is connected to the gas pipeline of the gas pressurizing assembly 10, and the air outlet of the gas conduit member 11 is located at the inner bottom of the anti-collision housing 1; at the same time, a first valve body 12 is provided at the connection between the air inlet of the gas conduit member 11 and the gas pipeline of the gas pressurizing assembly 10; on the side of the top of the sealing cover 2 far from the gas pressurizing assembly 10, a second valve body 13 is further fixed, and an energization interface and its protective cover body are also provided on the top of the sealing cover 2.

[0046] By setting the gas pressurizing assembly 10, when the lithium battery box is in use, the first valve body 12 and the second valve body 13 can be synchronously electrically controlled to be opened, and the gas pressurizing assembly 10 is used to drive the air flow. The air flow action can cool the built-in lithium battery body 3 during use through the protection solution, achieving the cooling protection effect of the built-in lithium battery body 3. At the same time, when the protection solution reciprocates and impacts the inner walls of the built-in lithium battery body 3 and the anti-collision housing 1 under the action of the collision, the air flow action makes the regular movement trend of the protection solution disordered, thereby reducing the impact kinetic energy of the protection solution movement on the built-in lithium battery body 3 and the anti-collision housing 1, and achieving the further protection effect of the lithium battery box.

[0047] Also, as shown in Figure 7 and Figure 8 On the back of the anti-collision housing 1, a folding pull rod 14 and a folding wheel set 15 are further installed. The folding pull rod 14 and the folding wheel set 15 are used for the portable movement of the lithium battery box; after the folding pull rod 14 and the folding wheel set 15 are folded, they are limited by bolts; the folding and unfolding of the folding pull rod 14 and the folding wheel set 15 facilitate the handling and movement of the lithium battery box during use.

[0048] Embodiment 2: The present invention adopts as shown in Figures 9 - 11As shown in the figure, further disclosed is that a limiting ring body 501 is provided at the connection between the sealing cover 2 and the elastic telescopic rod 5; the end of the elastic telescopic rod 5 is hingedly and rotatably arranged with a rotating member 502 on the limiting ring body 501, and at the same time, the rotating member 502 is rotatably connected with the limiting ring body 501; and the head end of the elastic telescopic rod 5 is connected with an elastic member 503 on the connecting member 4; the vertical rotation direction of the rotating member 502 and the limiting ring body 501 is perpendicular to the horizontal rotation direction of the elastic telescopic rod 5 and the rotating member 502; wherein the rotating member 502 and the limiting ring body 501 are rotatably connected by a rotating shaft; at the same time, the elastic member 503 is used for multi-directional rotation adjustment at the connection between the head end of the elastic telescopic rod 5 and the connecting member 4.

[0049] In the above technical solution, based on the first embodiment, this solution is set so that when the lithium battery box is subjected to an external collision, the built-in lithium battery body 3 can not only move horizontally, causing the elastic telescopic rod 5 to expand, contract and rotate horizontally, achieving the effect of kinetic energy release; under the action of the rotating member 502 and the elastic member 503, when the elastic telescopic rod 5 expands, contracts and rotates horizontally, it can also adjust the rotation angle in the vertical direction, enabling the built-in lithium battery body 3 to swing during a collision, improving the efficiency of kinetic energy release. In this case, when the lithium battery box is collided from the top, the built-in lithium battery body 3 can also release kinetic energy to achieve the effect of anti-collision protection.

[0050] In the above solution, the elastic member 503 can be provided with components such as an elastic liquid sac that can release energy in multiple directions.

[0051] At the same time, an anti-collision member is provided at the bottom of the built-in lithium battery body 3. At the same time, the magnetic positioning plate 6 penetrates through the middle of the anti-collision housing 1, and an elastic sealing belt is provided at the penetration; and a top cover 7 is fixed to the top of the anti-collision housing 1 directly above the magnetic positioning plate 6. An electromagnet 8 and a return spring 9 are fixed inside the top cover 7. The bottom of the return spring 9 is connected to the top edge of the magnetic positioning plate 6. There is a reserved moving gap between the bottom surface of the electromagnet 8 and the magnetic positioning plate 6; the anti-collision member includes elastic plastic, springs and other objects with buffering functions, which are used for anti-collision during the vertical movement and energy release process of the built-in lithium battery body 3, and protect the bottom during the swinging movement of the built-in lithium battery body 3. At the same time, the return spring 9 controls and resets the magnetic positioning plate 6 when the built-in lithium battery body 3 swings, enabling the built-in lithium battery body 3, the connecting member 4 and the magnetic positioning plate 6 to have the conditions and space for swinging. The setting of the sealing belt in this case enables the magnetic positioning plate 6 to have a moving space and at the same time does not cause liquid leakage.

[0052] Furthermore, a sensor element is also provided on the connecting member 4, which can monitor the swing amplitude of the built-in lithium battery body 3. When the external force collision on the lithium battery box is too large and the collision external force exceeds the monitoring threshold of the sensor element, resulting in an excessive movement amplitude of the built-in lithium battery body 3 and being prone to cause overload damage to the movement of the built-in lithium battery body 3, the sensor element controls the activation of the electromagnet 8 through the integrated circuit where it is located, so that the electromagnet 8 magnetically positions the magnetic positioning plate 6, and the magnetic positioning plate 6 remains relatively stationary. At this time, the built-in lithium battery body 3 can only perform horizontal movement and energy release, achieving the protection effect of the built-in lithium battery body 3 and its supporting installation components.

[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An outdoor lithium battery box with anti-collision and self-cooling function, comprising: An anti-collision housing (1) with a sealing cover (2) provided on its top. An internal lithium battery body (3) and a protective solution are provided between the anti-collision housing (1) and the sealing cover (2); It is characterized in that it further comprises: A connecting piece (4), the lower end of which is connected to the top of the internal lithium battery body (3). The upper end surface of the connecting piece (4) is in a fitting magnetic sliding connection with a magnetic positioning plate (6) embedded in the middle of the sealing cover (2). At the same time, elastic telescopic rods (5) are horizontally and equidistantly distributed between the upper end of the connecting piece (4) and the bottom surface of the sealing cover (2); The highest liquid level of the protective solution is below the middle section of the connecting piece (4). The protective solution is used for cooling and buffering energy release protection of the internal lithium battery body (3). A gas pressurizing assembly (10) is also fixed on the top of the sealing cover (2). A gas guide pipe piece (11) is provided on the front side of the anti-collision housing (1). The air inlet of the gas guide pipe piece (11) is connected to the gas pipeline of the gas pressurizing assembly (10), and the air outlet of the gas guide pipe piece (11) is located at the inner bottom of the anti-collision housing (1). At the same time, a first valve body (12) is provided at the connection between the air inlet of the gas guide pipe piece (11) and the gas pipeline of the gas pressurizing assembly (10). The gas pressurizing assembly (10) drives the air flow, and the air flow makes the movement trend of the regular protective solution disordered, reducing the impact kinetic energy of the internal lithium battery body (3) and the anti-collision housing (1) caused by the movement of the protective solution.

2. The anti-collision and self-cooling outdoor lithium battery box according to claim 1, wherein: A spacing is reserved between the bottom of the internal lithium battery body (3) and the inner bottom wall of the anti-collision housing (1), and the protective solution inside the anti-collision housing (1) gives the internal lithium battery body (3) an upward floating thrust.

3. The anti-collision and self-cooling outdoor lithium battery box according to claim 2, characterized in that: A limiting ring body (501) is provided at the connection between the sealing cover (2) and the elastic telescopic rod (5); The limiting ring body (501) is horizontally and hingedly rotatably arranged with the tail end of the elastic telescopic rod (5). The head end of the elastic telescopic rod (5) is horizontally hingedly arranged with the connecting piece (4).

4. The anti-collision and self-cooling outdoor lithium battery box according to claim 1 or 3, characterized in that: The connecting piece (4) is arranged in an "I" shape structure. The horizontal plane where the uniformly distributed elastic telescopic rods (5) are located is perpendicular to the connecting piece (4), and the horizontal plane where the elastic telescopic rods (5) are located is above the horizontal plane where the middle section of the connecting piece (4) is located.

5. The anti-collision and self-cooling outdoor lithium battery box according to claim 1, characterized in that: A second valve body (13) is also fixed on the side of the top of the sealing cover (2) away from the gas pressurizing assembly (10). An electric connection interface and its protective cover body are also provided on the top of the sealing cover (2).

6. The anti-collision and self-cooling outdoor lithium battery box according to claim 1, wherein: A folding pull rod (14) and a folding wheel set (15) are also installed on the back of the anti-collision housing (1). The folding pull rod (14) and the folding wheel set (15) are used for the portable movement of the lithium battery box; The folding pull rod (14) and the folding wheel set (15) are limited by bolts after being folded.

7. The anti-collision and self-cooling outdoor lithium battery box according to claim 2, characterized in that: A limiting ring body (501) is provided at the connection between the sealing cover (2) and the elastic telescopic rod (5); The end of the elastic telescopic rod (5) is horizontally and hingedly rotatably arranged with a rotating part (502) on the limiting ring body (501), and at the same time, the rotating part (502) is rotatably connected with the limiting ring body (501); And the head end of the elastic telescopic rod (5) is connected to an elastic part (503) on the connecting piece (4).

8. The anti-collision and self-cooling outdoor lithium battery box according to claim 7, characterized in that: The vertical rotation direction of the rotating member (502) and the limiting ring body (501), and the horizontal rotation direction of the elastic telescopic rod (5) and the rotating member (502) are perpendicular to each other; wherein the rotating member (502) and the limiting ring body (501) are rotationally connected by a shaft installation. At the same time, the elastic member (503) is used for multi-directional rotation adjustment at the connection between the first end of the elastic telescopic rod (5) and the connecting member (4).

9. The anti-collision and self-cooling outdoor lithium battery box according to claim 8, characterized in that: A collision prevention member is provided at the bottom of the built-in lithium battery body (3). At the same time, the magnetic positioning plate (6) is arranged through the middle of the collision prevention housing (1), and an elastic sealing strip is arranged at the through position. And a top cover (7) is further fixed to the top of the collision prevention housing (1) directly above the magnetic positioning plate (6). An electromagnet (8) and a return spring (9) are fixed inside the top cover (7). The bottom of the return spring (9) is connected to the top edge of the magnetic positioning plate (6), and there is a reserved activity gap between the bottom surface of the electromagnet (8) and the magnetic positioning plate (6).

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