A puncture-proof aluminum shell profile for new energy blade batteries

Abstract

The present invention provides a puncture-proof aluminum shell profile for new energy blade batteries applied in the field of battery aluminum shell profiles. When the bottom of the aluminum shell body encounters a serious puncture, the pre-opening will crack in the designed direction, and the continuous invasion of the puncturing object will squeeze the adjacent flexible base, so that the punctured flexible base is separated and the remaining flexible bases on both sides are squeezed, on the one hand, the connecting hoses between the punctured flexible bases are fully opened without pressure, and on the other hand, the connecting hoses between the unpunctured flexible bases are closed under pressure, so that the separation capsules corresponding to the puncture site are connected to the air pressure bag separately, and the remaining separation capsules are closed. Under the overall upward movement of the battery box and the pressurization operation of the pressure supply bin, the arranged blade batteries are separated at the puncture site and moved closer to both sides, providing an open puncture path for the punctured object, thereby forming a blade battery structure that autonomously avoids the punctured object, providing safety protection for the blade battery under puncture conditions, having market prospects, and being suitable for promotion and application.

Description

Technical Field

[0001] The present application relates to the field of battery aluminum shell profiles, and in particular to a puncture-proof aluminum shell profile for new energy blade batteries. Background Art

[0002] Electric vehicles, as low-emission green and environmentally friendly vehicles, have developed rapidly in recent years, but their range, safety and other issues have always existed. The application of composite materials and their lightweight technology to battery packs can effectively reduce the weight of core components, improve energy density, increase range, and reduce the difficulty of battery replacement technology. At the same time, the one-piece molding advantage of composite materials facilitates the integration of functional requirements to solve the safety problem of battery loss of control and improve the core competitiveness of automobile companies' products.

[0003] At present, in order to prevent battery puncture and spontaneous combustion, blade batteries have been designed on the market, which can effectively prevent puncture during vehicle operation and greatly reduce their spontaneous combustion. When traditional blade batteries are arranged horizontally, when the car is running, when there are sharp obstacles on the road, they will still produce a puncture action obliquely upward, which will squeeze the blade battery and cause energy accumulation in the battery material, reducing the safety of the blade battery. At the same time, traditional aluminum shell profiles for batteries need to be replaced as a whole after a slight puncture, and the maintenance cost is high. For this reason, we propose a puncture-proof aluminum shell profile for new energy blade batteries to solve the above problems. Summary of the invention

[0004] The purpose of this application is to design an aluminum shell profile to reduce the damage rate of blade batteries when they are punctured and reduce the possibility of spontaneous combustion, thereby improving the safety of use. Compared with the prior art, a puncture-resistant aluminum shell profile for new energy blade batteries is provided. Through the design of the aluminum shell, a plurality of battery compartments arranged equidistantly and penetratingly arranged are provided on the aluminum shell, and upper and lower sides of the battery compartment are respectively installed with upper and lower sealing plates by bolts, and a battery box is encapsulated in the battery compartment by the upper and lower sealing plates;

[0005] The battery box includes a box body and a box cover sealed on the top of the box body, a convex edge is provided on the top side of the box body, a hanging edge matching the convex edge is fixed in the battery compartment, a plurality of positioning grooves for positioning blade batteries are provided in the box body, a flexible base corresponding to the positioning groove is fixed in the bottom of the blade battery, a plurality of partition capsules are fixed on the top of the box cover, the partition capsules are clamped between the tops of adjacent blade batteries, an air pressure bag is fixed on the top of the box cover, the partition capsules are connected to the air pressure bag through connecting hoses, and the connecting hoses are clamped between the corresponding flexible bases;

[0006] A guide corrugated plate is fixed on the top of the lower sealing plate, a plurality of pre-openings are arranged on the bottom of the box body, and the tip of the guide corrugated plate is matched in the pre-openings.

[0007] Furthermore, a pressure supply chamber is provided on one side of the aluminum shell, and a pressure supply device is built into the pressure supply chamber, and the pressure supply device provides the designed air pressure for the air pressure bag.

[0008] Furthermore, the pressure supply chamber provides arrangement air pressure for the air pressure bag and the partition bladder, so that the partition bladder expands and keeps the top of the blade batteries arranged equidistantly.

[0009] Furthermore, a pressure sensor is clamped between the convex edge and the hanging edge of the box body, and the pressure sensor is used to adjust the pressure supply value of the pressure supply bin.

[0010] Furthermore, weight-reducing holes are provided between adjacent battery compartments, and the plurality of weight-reducing holes are arranged equidistantly from top to bottom.

[0011] Furthermore, adjacent battery compartments are connected via weight-reducing holes, and the cavity portions of the battery compartments are filled with coolant.

[0012] Furthermore, when adjacent flexible bases are assembled in the positioning grooves, a squeezing force is generated on the connecting hose to keep the connecting hose in a semi-open state.

[0013] Furthermore, adjacent flexible bases are separated when squeezed by the puncturing object, and at this time, the connecting hoses between the separated flexible bases are in an open state, and the connecting hoses between the remaining flexible bases are squeezed in a closed state.

[0014] Furthermore, a buffer layer is filled between the guide corrugated plate and the lower sealing plate, an anti-puncture liquid is filled between the guide corrugated plate and the box body, and a sealing strip is fixed on the top of the box body.

[0015] Furthermore, the anti-puncture liquid is a rubber adhesive, the curing initiator of the anti-puncture liquid is oxygen in the air, and the buffer layer is formed by a composite of an inorganic foaming coating and a ceramic coating.

[0016] Compared with the prior art, the advantages of this application are:

[0017] (1) Through the design of a partition bladder with a pressure chamber and an air pressure bag, under normal use, the pressurized partition bladder provides flexible support for the top of the blade battery, making its top evenly distributed and having a good heat dissipation gap. At the same time, combined with the design of a flexible base, it provides a good buffer structure for the blade battery, which can effectively filter the vibration generated during the operation of the car and provide safe shock absorption protection for the blade battery.

[0018] (2) Through the design of weight-reducing holes, the overall mass of the aluminum shell is reduced, reducing the material cost in the manufacturing process. At the same time, the coolant is diverted to each battery compartment through the weight-reducing holes, forming a good liquid cooling heat dissipation path, effectively reducing the operating temperature in the battery compartment.

[0019] (3) The present invention enables the battery box to be modularly assembled in the battery compartment through the mutual cooperation between the battery box with the air pressure bag and the partition sac and the lower sealing plate with the guide corrugated plate. When the battery box is damaged by puncture, the corresponding damaged parts can be replaced, which effectively reduces the maintenance cost.

[0020] (4) When the bottom of the aluminum shell encounters a slight puncture, the puncturing object pierces the lower sealing plate and is initially buffered. The battery box is pushed upward under the guidance of the guide corrugated plate. Since the battery box is hung in the battery compartment, it is moved upward by the top impact force, causing the hanging edge and the convex edge to separate. At this time, the pressure sensor between the two detects the decrease in pressure value and feeds back to the pressure supply bin, so that the pressure supply bin provides pressurization for the air pressure bag and the separation bladder, thereby causing the upward-moving battery box to impact the air pressure bag, thereby buffering the puncture force.

[0021] (5) When the bottom of the aluminum shell is severely punctured, it will be punctured toward the pre-opening at the bottom of the box body under the guidance of the guide corrugated plate. Due to the severe puncture, the stress in the pre-opening exceeds the stress, and the pre-opening will crack in the designed direction. The continuous invasion of the punctured object will squeeze the adjacent flexible base, separate the punctured flexible base and squeeze the remaining flexible bases on both sides. On the one hand, the connecting hose between the punctured flexible bases is fully opened without pressure, and on the other hand, the connecting hose between the unpunctured flexible bases is closed under pressure, so that the separation capsule corresponding to the puncture site is connected to the air pressure bag separately, and the remaining separation capsules are closed. Under the overall upward movement of the battery box and the pressurization operation of the pressure supply chamber, the arranged blade batteries are separated at the puncture site and moved closer to both sides, providing an open puncture path for the punctured object, thereby forming a blade battery structure that autonomously avoids the punctured object, providing safety protection for the blade battery under puncture conditions, having market prospects, and being suitable for promotion and application.

[0022] (6) The design of the guide corrugated plate with anti-puncture liquid and buffer layer can improve the anti-puncture ability of the lower sealing plate on the one hand. On the other hand, when a puncture occurs, the anti-puncture liquid will overflow along the puncture site and quickly solidify after contacting the outside air, thereby blocking the invasion of oxygen and reducing the conditions for spontaneous combustion. At the same time, the solidification of the anti-puncture liquid will maintain the sealing of the battery compartment. Therefore, the cooling liquid circulation can still be provided for the battery compartment through the weight reduction hole to reduce the core temperature of the blade battery and improve safety after a puncture occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front structure of this application;

[0024] Figure 2 This is a schematic diagram of the partial explosion structure of this application;

[0025] Figure 3 A schematic diagram of the exploded structure of the battery box proposed in this application;

[0026] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0027] Figure 5 It is a schematic diagram of the structure of the box cover, the air pressure bag and the separation capsule proposed in this application;

[0028] Figure 6 This is a schematic diagram of the structure of the battery compartment proposed in this application;

[0029] Figure 7 This is a schematic diagram of the structure of the lower sealing plate and guide corrugations proposed in this application;

[0030] Figure 8 It is a schematic diagram of the cross-sectional structure of this application;

[0031] Fig. 9 This is a schematic diagram of the state of this application when it is slightly punctured;

[0032] Fig.10 This is a schematic diagram of the state of the present application when it is severely punctured.

[0033] Description of the numbers in the figure:

[0034] Aluminum shell 1, battery compartment 11, hanging edge 12, weight reduction hole 13, upper sealing plate 2, pressure supply compartment 3, battery box 4, box body 41, positioning groove 411, sealing strip 412, pre-opening 413, convex edge 414, box cover 42, air pressure bag 43, partition sac 44, lower sealing plate 5, guide corrugated plate 51, blade battery 6, flexible base 61, connecting hose 62. DETAILED DESCRIPTION

[0035] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0036] Embodiment 1:

[0037] The present invention provides a puncture-proof aluminum shell profile for new energy blade batteries. Figure 1-10 , comprising an aluminum housing 1, on which are disposed a plurality of battery compartments 11 which are arranged equidistantly and penetrate the aluminum housing 1, upper and lower sides of the battery compartment 11 are respectively mounted with an upper sealing plate 2 and a lower sealing plate 5 by bolts, and a battery box 4 is enclosed in the battery compartment 11 by the upper sealing plate 2 and the lower sealing plate 5;

[0038] The battery box 4 includes a box body 41 and a box cover 42 encapsulated on the top of the box body 41, a convex edge 414 is provided on the top side of the box body 41, a hanging edge 12 matching the convex edge 414 is fixed in the battery compartment 11, a plurality of positioning grooves 411 for positioning the blade battery 6 are provided in the box body 41, a flexible base 61 corresponding to the positioning groove 411 is fixed at the bottom of the blade battery 6, a plurality of partition capsules 44 are fixed on the top of the box cover 42, the partition capsules 44 are clamped between the tops of adjacent blade batteries 6, an air pressure bag 43 is fixed on the top of the box cover 42, the partition capsules 44 are connected to the air pressure bag 43 through connecting hoses 62, and the connecting hoses 62 are clamped between the corresponding flexible bases 61; a guide corrugated plate 51 is fixed on the top of the lower sealing plate 5, a plurality of pre-openings 413 are provided at the bottom of the box body 41, and the tip of the guide corrugated plate 51 is matched in the pre-opening 413.

[0039] It should be noted that, in the present embodiment, a pressure supply bin 3 is provided on one side of the aluminum shell 1, and a pressure supply device is built in the pressure supply bin 3. The pressure supply device provides the designed air pressure for the air pressure bag 43, and the pressure supply bin 3 provides arrangement air pressure for the air pressure bag 43 and the partition bag 44, so that the partition bag 44 expands and keeps the top of the blade batteries 6 arranged equidistantly. A pressure sensor is clamped between the convex edge 414 and the hanging edge 12 of the box body 41, and the pressure sensor is used to adjust the pressure supply value of the pressure supply bin 3.

[0040] Through the design of the partition bladder 44 and the air pressure bag 43 with the pressure supply chamber 3, under normal use, the pressurized partition bladder 44 provides flexible support for the top of the blade battery 6, so that the top is evenly distributed and has a good heat dissipation gap. At the same time, combined with the design of the flexible base 61, a good buffer structure is provided for the blade battery 6, which can effectively filter the vibration generated during the operation of the car and provide safe shock absorption protection for the blade battery 6.

[0041] Among them, weight-reducing holes 13 are provided between adjacent battery compartments 11 , and a plurality of weight-reducing holes 13 are arranged equidistantly from top to bottom. Adjacent battery compartments 11 are connected through the weight-reducing holes 13 , and the cavity of the battery compartment 11 is filled with coolant.

[0042] Through the design of the weight-reducing holes 13 , the overall mass of the aluminum shell 1 is reduced, reducing the material cost in the manufacturing process. At the same time, the coolant is diverted to each battery compartment 11 through the weight-reducing holes 13 , forming a good liquid cooling heat dissipation path, effectively reducing the operating temperature in the battery compartment 11 .

[0043] In this embodiment, when adjacent flexible bases 61 are assembled in the positioning grooves 411, an extrusion force is generated on the connecting hose 62 to keep the connecting hose 62 in a semi-open state. When the adjacent flexible bases 61 are squeezed by the piercing object, they are separated. At this time, the connecting hoses 62 between the separated flexible bases 61 are in an open state, and the connecting hoses 62 between the remaining flexible bases 61 are squeezed in a closed state.

[0044] The present invention enables the battery box 4 to be modularly assembled in the battery compartment 11 by the mutual cooperation between the battery box 4 with the air pressure bag 43 and the partition capsule 44 and the lower sealing plate 5 with the guide corrugated plate 51. When the battery box 4 is damaged by puncture, the corresponding damaged parts can be replaced, which effectively reduces the maintenance cost.

[0045] Among them, when the bottom of the aluminum shell 1 encounters a slight puncture, the puncturing object pierces the lower sealing plate 5 and is initially buffered. Under the guiding action of the guide corrugated plate 51, the battery box 4 that is pushed upward is moved upward by the top impact force because the battery box 4 is hung in the battery compartment 11, so that the hanging edge 12 is separated from the convex edge 414. At this time, the pressure sensor between the two detects the decrease in pressure value and feeds back to the pressure supply bin 3, so that the pressure supply bin 3 provides pressurization for the air pressure bag 43 and the separation capsule 44, thereby causing the upwardly moving battery box 4 to impact the air pressure bag 43, and buffering and protecting the puncture force;

[0046] When the bottom of the aluminum shell 1 is severely punctured, it will be punctured toward the pre-opening 413 at the bottom of the box body 41 under the guidance of the guide corrugated plate 51. Due to the severe puncture, the stress between the pre-openings 413 is exceeded, and the pre-openings 413 will crack in the designed direction. The continuous invasion of the punctured object will squeeze the adjacent flexible base 61, so that the punctured flexible base 61 is separated and the remaining flexible bases 61 on both sides are squeezed. On the one hand, the connecting hose 62 between the punctured flexible bases 61 is not pressed and fully opened, and on the other hand, the flexible bases 61 that are not punctured are opened. The connecting hose 62 between the bases 61 is pressurized and closed, so that the separation capsule 44 corresponding to the puncture site is connected to the air pressure bag 43 separately, and the other separation capsules 44 are closed. When the battery box 4 moves upward as a whole and the pressure supply chamber 3 is pressurized, the expanded separation capsules 44 separate the arranged blade batteries 6 at the puncture site and move them closer to both sides, providing an open puncture path for the punctured object, thereby forming a blade battery 6 structure that can autonomously avoid the punctured object, providing safety protection for the blade battery 6 under puncture conditions, having market prospects, and being suitable for promotion and application.

[0047] Embodiment 2:

[0048] The present invention provides a puncture-proof aluminum shell profile for new energy blade batteries. Figure 1-10 , wherein the components identical or corresponding to those in Embodiment 1 are marked with the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 are described below:

[0049] In this embodiment, a buffer layer is filled between the guide corrugated plate 51 and the lower sealing plate 5, and an anti-puncture liquid is filled between the guide corrugated plate 51 and the box body 41. A sealing strip 412 is fixed to the top of the box body 41. The anti-puncture liquid is a rubber adhesive, and the curing initiator of the anti-puncture liquid is oxygen in the air. The buffer layer is formed by a composite of an inorganic foaming coating and a ceramic coating.

[0050] Through the design of the guide corrugated plate 51 with anti-puncture liquid and a buffer layer, on the one hand, the anti-puncture ability of the lower sealing plate 5 is improved. On the other hand, when the puncture is formed, the anti-puncture liquid will overflow along the puncture site. After contacting the outside air, it will quickly solidify, blocking the invasion of oxygen and reducing the spontaneous combustion conditions. At the same time, the solidification of the anti-puncture liquid will maintain the sealing of the battery compartment 11. Therefore, the weight reduction hole 13 can still provide coolant circulation for the battery compartment 11 to reduce the core temperature of the blade battery 6 and improve safety after the puncture occurs.

[0051] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. A puncture-proof aluminum shell profile for a new energy blade battery, comprising an aluminum shell (1), characterized in that: The aluminum housing (1) is provided with a plurality of battery compartments (11) which are arranged equidistantly and are arranged through the battery compartment (11); an upper sealing plate (2) and a lower sealing plate (5) are respectively installed on the upper and lower sides of the battery compartment (11) by means of bolts; a battery box (4) is enclosed in the battery compartment (11) by means of the upper sealing plate (2) and the lower sealing plate (5); The battery box (4) comprises a box body (41) and a box cover (42) sealed on the top of the box body (41); a convex edge (414) is provided on the top side of the box body (41); a hanging edge (12) matching the convex edge (414) is fixed in the battery compartment (11); a plurality of positioning grooves (411) for positioning the blade batteries (6) are provided in the box body (41); a flexible base (61) corresponding to the positioning groove (411) is fixed at the bottom of the blade batteries (6); a plurality of partition capsules (44) are fixed on the top of the box cover (42); the partition capsules (44) are clamped between the tops of adjacent blade batteries (6); an air pressure bag (43) is fixed on the top of the box cover (42); the partition capsules (44) are connected to the air pressure bag (43) through connecting hoses (62) respectively; the connecting hoses (62) are clamped between the corresponding flexible bases (61); A guide corrugated plate (51) is fixed on the top of the lower sealing plate (5), a plurality of pre-openings (413) are provided on the bottom of the box body (41), and the tip of the guide corrugated plate (51) is aligned in the pre-opening (413); A pressure supply bin (3) is provided on one side of the aluminum shell (1), and a pressure supply device is built in the pressure supply bin (3). The pressure supply device provides a designed air pressure for the air pressure bag (43). The pressure supply bin (3) provides an arrangement air pressure for the air pressure bag (43) and the partition sac (44), so that the partition sac (44) expands and maintains the top of the blade batteries (6) arranged equidistantly. A pressure sensor is clamped between the convex edge (414) and the hanging edge (12) of the box body (41), and the pressure sensor is used to adjust the pressure supply value of the pressure supply bin (3); When the adjacent flexible bases (61) are assembled in the positioning grooves (411), a squeezing force is generated on the connecting hose (62) so that the connecting hose (62) remains in a semi-open state. When the adjacent flexible bases (61) are squeezed by the puncturing object, they are separated. At this time, the connecting hoses (62) between the separated flexible bases (61) are in an open state, and the connecting hoses (62) between the remaining flexible bases (61) are squeezed in a closed state.

2. The puncture-proof aluminum shell profile for new energy blade batteries according to claim 1 is characterized in that: Weight reduction holes (13) are provided between adjacent battery compartments (11), and a plurality of the weight reduction holes (13) are arranged at equal distances from top to bottom.

3. The puncture-proof aluminum shell profile for new energy blade batteries according to claim 2 is characterized in that: Adjacent battery compartments (11) are connected via weight-reducing holes (13), and the cavity portions of the battery compartments (11) are filled with cooling liquid.

4. The puncture-proof aluminum shell profile for new energy blade batteries according to claim 1 is characterized in that: A buffer layer is filled between the guide corrugated plate (51) and the lower sealing plate (5), an anti-puncture liquid is filled between the guide corrugated plate (51) and the box body (41), and a sealing strip (412) is fixed to the top of the box body (41).

5. The puncture-proof aluminum shell profile for new energy blade batteries according to claim 4 is characterized in that: The puncture-proof liquid is a rubber adhesive, the curing initiator of the puncture-proof liquid is oxygen in the air, and the buffer layer is formed by a composite of an inorganic foaming coating and a ceramic coating.

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