A profile structure battery box dedicated for energy storage

Abstract

The present invention discloses a profile structure battery box body for energy storage, including a battery box. A box cover is fixed on the top of the battery box, and an installation groove is formed on the bottom surface of the box cover. A contact head is connected in the installation groove through a spring. A wiring seat is arranged on the top of the box cover, and the wiring seat is electrically connected to the contact head through a spring; the partition board is embedded in the battery box. An extrusion plate is connected to the outside of the installation plate through an elastic telescopic rod. Battery components are placed between the water bags on the outer side of the side wall of the battery box and the water bags on the outer side of the extrusion plate, and between the water bags on the outer side of adjacent extrusion plates. A first ventilation cavity is vertically formed inside the partition board, and ventilation holes are formed through the bottom and the front side of the battery box. For this profile structure battery box body for energy storage, after a single-area battery catches fire, water is used to extinguish the fire, and at the same time, it has good shock absorption and heat dissipation effects.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy batteries, and specifically to a profile-structured battery box dedicated for energy storage. Background Art

[0002] New energy batteries, with their good energy storage and charge-discharge performance, are widely used in new energy vehicles as the energy output for vehicle power, reducing the dependence on petroleum and achieving the effects of energy conservation and environmental protection. In the use of new energy storage batteries, it includes battery components and a box body. The battery components provide power, and the box body provides protection for the battery components. However, the existing battery boxes have the following problems when in use:

[0003] With the increasingly wide application of new energy batteries in vehicles, the problems caused also increase. The battery inner core may catch fire due to problems such as short circuit and high temperature. If not handled in time, it will cause the entire vehicle to catch fire. The existing battery boxes are not convenient for timely fire extinguishing operations for local spontaneous combustion of the battery. On the one hand, it will cause the associated combustion of other battery packs. On the other hand, it may trigger the combustion of the entire vehicle, having a large potential safety hazard. The associated combustion will have an impact on the surrounding environment. Further, the subsequent treatment of combustion waste will also have an adverse impact on the environment. In the existing technology, there are also various electronic devices used to monitor and timely feedback the battery status. On the one hand, using too many additional electronic devices causes power and production capacity losses. On the other hand, battery combustion is often accompanied by short circuit and power-off situations, and the electronic devices cannot be powered, resulting in the inability to monitor and react in time. When the vehicle and the battery are in operation, there are often situations of bumps and rising battery heat. The existing battery boxes are not convenient for combining fire extinguishing with shock absorption and heat dissipation. The simple superposition of multiple functions increases the cost on the one hand and increases the volume and weight of the battery box on the other hand, causing additional losses to the vehicle's driving and the battery itself.

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

[0005] The purpose of the present invention is to provide a profile-structured battery box dedicated for energy storage, so as to solve the problems in the above background art that the existing battery boxes are not convenient for timely fire extinguishing operations for local spontaneous combustion of the battery and are not convenient for combining fire extinguishing with shock absorption and heat dissipation. The technical solution of the present invention provides a solution significantly different from the existing technology for the technical problem of the overly single solution of the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a battery box with a profile structure specifically for energy storage, comprising a battery box, a box cover fixed to the top of the battery box, a mounting groove formed on the bottom surface of the box cover, a contact head connected to the mounting groove via a spring, a wiring seat provided on the top of the box cover, and the wiring seat electrically connected to the contact head via a spring;

[0007] Also includes:

[0008] A partition plate is embedded in the battery box, and mounting plates are embedded and limited on both sides of the partition plate and the side walls of the battery box, and a water bag is bonded to the outside of the mounting plate. The outside of the mounting plate is connected to an extrusion plate through an elastic telescopic rod, and the extrusion plate is located between the water bag and the mounting plate. Battery assemblies are placed between the water bag outside the side wall of the battery box and the water bag outside the extrusion plate, as well as between the water bags outside adjacent extrusion plates, and the top electrode of the battery assembly is in contact with the bottom of the contact head. A first ventilation cavity is vertically opened inside the partition plate, and a second ventilation cavity is horizontally opened inside the partition plate. Ventilation holes are opened through the bottom and front of the battery box, and the ventilation holes are connected to the first ventilation cavity and the second ventilation cavity.

[0009] Preferably, the top-view cross-section of the partition plate is designed in an "I"-shaped structure, and the "I"-shaped ends of the partition plate are slidably installed with the battery box in a concave-convex fit, and the partition plate and the battery box are both made of aluminum alloy, which facilitates the installation of the partition plate, ensures strength and facilitates heat dissipation.

[0010] Preferably, sufficient salt is added to the water in the water bag to form a saline solution, and the water bag is made of organic silicone. By adding salt to the water, it can effectively prevent the water from freezing in winter and improve the fire extinguishing effect. At the same time, the water bag made of organic silicone material has a certain elasticity and fixes the battery assembly. At the same time, after the battery assembly burns, the water bag can be burned, allowing the internal saline solution to flow out for fire extinguishing operations.

[0011] Preferably, the extrusion plate slides elastically on the outside of the partition plate through an elastic telescopic rod, and the extrusion plate is made of aluminum alloy, and the extrusion plate, the partition plate and the outer end of the water bag are all parallel to each other. After the water bag is burned, the extrusion plate is subjected to force to squeeze the water bag, so that the saline solution can flow out quickly.

[0012] Preferably, the top of the extrusion plate is designed to be an inclined structure near the contact head, and the protruding position at the bottom of the contact head is designed to be an inclined structure parallel to the end of the extrusion plate. The extrusion plate is moved under force to lift the contact head, so that the contact head is separated from the battery assembly to achieve power-off operation.

[0013] Preferably, the first ventilation cavity and the second ventilation cavity are both equally spaced within the partition board, and the first ventilation cavity and the second ventilation cavity penetrate each other perpendicularly. When the vehicle is running, negative pressure is generated at the bottom of the battery box, so that air enters the first ventilation cavity and the second ventilation cavity through the front end of the battery box and is discharged from the bottom, realizing heat dissipation.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. In the present invention, an automatic fire extinguishing mechanism is provided. The battery assembly is placed between two adjacent water bags. When a fire occurs in the battery assembly, the temperature rises rapidly, the water bags are damaged by heat, and the saline solution in the water bags flows out. At the same time, the extrusion plate squeezes the water bags under the action of the elastic telescopic rod, so that all the saline solution in the water bags can flow out. The saline solution quickly wraps the entire battery assembly, isolates the air, and prevents the continuation of combustion. At the same time, the saline solution can also cool down the battery assembly. The extrusion of the water bags by the extrusion plate enables the water in the water bags to flow out regardless of where the battery assembly catches fire, effectively avoiding the problem that the saline solution at the bottom of the water bag cannot flow out when the middle or upper part of the battery assembly catches fire. Further, the movement of the extrusion plate can jack up the contact head through the top inclined structure, so that the contact head is separated from the battery assembly, realizing power-off. The battery box is divided into multiple spaces by the partition board, so that individual battery assemblies do not interfere with each other. When a fire occurs in an individual battery assembly, the fire extinguishing operation can be carried out on this battery assembly in time. Combined with the power-off operation, other battery assemblies can be prevented from being affected. On the one hand, rapid fire extinguishing is achieved, the subsequent spread of the fire is avoided, and the safety performance is improved. On the other hand, other battery assemblies can still be used continuously, avoiding damage to the entire battery, saving energy to a great extent, reducing the subsequent treatment of damaged batteries, and reducing the impact on the environment caused by the subsequent treatment of batteries, realizing the effect of energy conservation and environmental protection;

[0016] 2. In the present invention, a heat dissipation mechanism is provided. During the driving process of the vehicle, the air flow velocity at the bottom of the battery box is relatively fast, generating negative pressure, so that air can enter the first ventilation cavity and the second ventilation cavity through the ventilation holes at the front end of the battery box and is discharged through the ventilation holes at the bottom of the battery box, realizing the flow of air in the battery box and the partition board and taking out the heat. At the same time, the heat generated during the operation of the battery assembly is transferred by the internal saline solution through the water bag made of organic silicone material, and then transferred by the partition board and the battery box made of aluminum alloy material. The heat is taken out by the first ventilation cavity and the second ventilation cavity inside the partition board, realizing heat dissipation. The flowing air inside the battery box and the partition board will not contact the battery assembly, and on the basis of realizing heat dissipation, it can avoid the intrusion of dust on the battery assembly;

[0017] 3. In summary, in the present invention, a water bag is used in combination with a saline solution inside. When a fire breaks out in the battery assembly, the water bag is damaged. With the extrusion of the extrusion plate on the water bag, the saline solution can flow out completely to wrap the battery assembly, achieving timely fire extinguishing and heat dissipation. The use of the saline solution can avoid the situation of large-area icing when the air temperature is low in winter, prevent the water from not flowing out when fire extinguishing is needed in the prior art, improve the timely fire extinguishing effect. At the same time, the use of the water bag can also fix and buffer the battery assembly, improving the stability. Further, during the driving of the vehicle, heat can be dissipated from the inside, avoiding direct contact between the air and the battery assembly, reducing the intrusion of dust on the battery assembly. Through a simple structure, effects such as fire extinguishing, heat dissipation, buffering, and dust prevention are achieved. By placing the battery assemblies in partitions and extinguishing fires individually and centrally, the spread of fire is effectively avoided from affecting the whole, saving energy, reducing the environmental damage caused by subsequent battery treatment, and achieving energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic front sectional structure view of the present invention;

[0019] Figure 2 is a schematic top sectional structure view of the present invention;

[0020] Figure 3 is of the present invention Figure 1 an enlarged structure view of part A in;

[0021] Figure 4 is of the present invention Figure 2 an enlarged structure view of part B in;

[0022] Figure 5 is a schematic side sectional structure view of the partition board of the present invention.

[0023] In the figure: 1, battery box; 2, box cover; 3, installation groove; 4, spring; 5, contact head; 6, wiring seat; 7, partition board; 8, mounting plate; 9, water bag; 10, elastic telescopic rod; 11, extrusion plate; 12, battery assembly; 13, first ventilation cavity; 14, second ventilation cavity; 15, ventilation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5The present invention provides a technical solution: a battery box with a profile structure dedicated to energy storage, comprising a battery box 1, a box cover 2, a mounting groove 3, a spring 4, a contact head 5, a terminal block 6, a partition plate 7, a mounting plate 8, a water bag 9, an elastic telescopic rod 10, an extrusion plate 11, a battery assembly 12, a first ventilation cavity 13, a second ventilation cavity 14, and a ventilation hole 15;

[0026] Example 1

[0027] See also Figures 1-4 , including a battery box 1, a box cover 2 is fixed on the top of the battery box 1, and a mounting groove 3 is provided on the bottom surface of the box cover 2, and a contact head 5 is connected to the mounting groove 3 through a spring 4, and a wiring seat 6 is provided on the top of the box cover 2, and the wiring seat 6 is electrically connected to the contact head 5 through a spring 4; a partition plate 7 is embedded in the battery box 1, and mounting plates 8 are embedded and limitedly placed on both sides of the partition plate 7 and on the side wall of the battery box 1, and a water bag 9 is bonded to the outside of the mounting plate 8, and an extrusion plate 11 is connected to the outside of the mounting plate 8 through an elastic telescopic rod 10, and the extrusion plate 11 is located between the water bag 9 and the mounting plate 8, and battery assemblies 12 are placed between the water bag 9 outside the side wall of the battery box 1 and the water bag 9 outside the extrusion plate 11, as well as between the water bags 9 outside the adjacent extrusion plates 11, and the top electrode of the battery assembly 12 is in contact with the bottom of the contact head 5; the top cross-section of the partition plate 7 is an "I"-shaped structure design, and the "I" of the partition plate 7 The two ends of the shape are slidably mounted with the battery box 1 in a concave-convex fit, and the partition plate 7 and the battery box 1 are both made of aluminum alloy. Sufficient salt is added to the water in the water bag 9 to form a saline solution, and the water bag 9 is made of organic silicone. The extrusion plate 11 elastically slides on the outside of the partition plate 7 through the elastic telescopic rod 10, and the extrusion plate 11 is made of aluminum alloy, and the extrusion plate 11 is parallel to the outer ends of the partition plate 7 and the water bag 9. The top of the extrusion plate 11 is designed to be an inclined structure near the contact head 5, and the protruding position of the bottom of the contact head 5 is designed to be an inclined structure parallel to the end of the extrusion plate 11. The battery assembly 12 is clamped and fixed by the extrusion plate 11 in cooperation with the water bag 9, and has heat dissipation and buffering functions. When a single battery assembly 12 catches fire, the water bag 9 is damaged by heat, and the internal saline solution flows out. The extrusion of the water bag 9 by the extrusion plate 11 quickly wraps the entire battery assembly 12, isolating the air and achieving fire extinguishing.

[0028] Example 2

[0029] See also Figures 1-2 and Figure 5, a first ventilation cavity 13 is vertically formed inside the partition plate 7, and a second ventilation cavity 14 is horizontally formed inside the partition plate 7. Ventilation holes 15 are formed through the bottom and the front side of the battery box 1, and the ventilation holes 15 communicate with the first ventilation cavity 13 and the second ventilation cavity 14. The first ventilation cavity 13 and the second ventilation cavity 14 are evenly distributed at equal intervals inside the partition plate 7, and the first ventilation cavity 13 and the second ventilation cavity 14 are vertically and mutually penetrated. During the driving of the vehicle, the air flow velocity at the bottom is relatively fast, generating negative pressure, so that the air enters the first ventilation cavity 13 and the second ventilation cavity 14 from the front ventilation holes 15 of the battery box 1, and then is discharged from the bottom ventilation holes 15 of the battery box 1 to perform heat dissipation operation on the interior.

[0030] Working principle: When using the battery box body with the profile structure dedicated for energy storage, such as Figures 1-5 in, first insert the partition plate 7 into the recesses on the battery box 1 in sequence, then insert the mounting plate 8 into the recesses on both sides of the partition plate 7 and the side walls of the battery box 1, then insert the battery assembly 12 into the space between two adjacent partition plates 7 and between the partition plate 7 and the battery box 1. By squeezing the water bag 9 with the pressing plate 11, the water bag 9 squeezes and fixes the battery assembly 12. Then fix the box cover 2 on the battery box 1 so that the contact head 5 contacts the end electrode of the battery assembly 12, and then is electrically connected to the outside through the wiring base 6. When a fire breaks out in a single battery assembly 12, the temperature rises rapidly. At this time, the water bag 9 is damaged by heat, and the brine solution in the water bag 9 flows out. In the case of the damage of the water bag 9, the compressed elastic telescopic rod 10 provides an elastic force to push the pressing plate 11 to move towards the water bag 9 to squeeze the water bag 9, so that all the brine solution in the water bag 9 can flow out, and then the brine solution quickly wraps the battery assembly 12 to isolate the air for fire extinguishing and cooling. At the same time, the movement of the pressing plate 11 can also push the contact head 5 to move upward in the mounting groove 3, and the spring 4 is compressed, so that the contact head 5 is separated from the battery assembly 12 to realize the power-off operation;

[0031] During normal use, when the vehicle is driving, the air flow velocity at the bottom of the battery box 1 is relatively fast, generating negative pressure, so that the air can enter the first ventilation cavity 13 and the second ventilation cavity 14 from the ventilation holes 15 at the front end of the battery box 1 and is discharged through the ventilation holes 15 at the bottom of the battery box 1. Cooperating with the aluminum alloy materials of the partition plate 7 and the battery box 1, the water bag 9 made of organic silicone material and the brine solution inside, heat dissipation is performed on the interior. At the same time, the air circulates inside the battery box 1 and the partition plate 7 and will not contact the battery assembly 12, which can effectively avoid the intrusion of dust on the battery assembly 12.

[0032] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art 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. A profile structure battery box dedicated for energy storage, comprising a battery box (1), a box cover (2) is fixed on the top of the battery box (1), and an installation groove (3) is opened on the bottom surface of the box cover (2), and a contact head (5) is connected in the installation groove (3) through a spring (4). A wiring seat (6) is arranged on the top of the box cover (2), and the wiring seat (6) is electrically connected to the contact head (5) through the spring (4); It is characterized in that: It further includes: A partition board (7), the partition board (7) is embedded in the battery box (1), and mounting plates (8) are embedded and limited on both sides of the partition board (7) and the side wall of the battery box (1). A water bag (9) is bonded to the outside of the mounting plate (8). An extrusion plate (11) is connected to the outside of the mounting plate (8) through an elastic telescopic rod (10), and the extrusion plate (11) is located between the water bag (9) and the mounting plate (8). Battery modules (12) are placed between the water bags (9) on the outside of the side wall of the battery box (1) and the water bags (9) on the outside of the extrusion plate (11), and between the water bags (9) on the outside of adjacent extrusion plates (11). The top electrode of the battery module (12) is in contact with the bottom of the contact head (5). A first ventilation cavity (13) is vertically opened inside the partition board (7), and a second ventilation cavity (14) is horizontally opened inside the partition board (7). Ventilation holes (15) are opened through at the bottom and the front side of the battery box (1), and the ventilation holes (15) communicate with the first ventilation cavity (13) and the second ventilation cavity (14).

2. The profile structure battery box dedicated for energy storage according to claim 1, wherein: The top view cross-section of the partition board (7) is designed in an "I" - shaped structure, and the two "I" - shaped ends of the partition board (7) are slidably installed in a concave - convex fit with the battery box (1). Both the partition board (7) and the battery box (1) are made of aluminum alloy.

3. The profile structure battery box dedicated for energy storage according to claim 1, characterized in that: The water bag (9) is filled with a saline solution, and the water bag (9) is made of silicone rubber.

4. The profile structure battery box dedicated for energy storage according to claim 1, wherein: The extrusion plate (11) elastically slides on the outside of the partition board (7) through the elastic telescopic rod (10). The extrusion plate (11) is made of aluminum alloy, and the extrusion plate (11) is parallel to the outer ends of the partition board (7) and the water bag (9).

5. The profile structure battery box dedicated for energy storage according to claim 1, characterized in that: The top end of the extrusion plate (11) is designed as an inclined structure near the contact head (5), and the protruding position at the bottom of the contact head (5) is designed as an inclined structure parallel to the end of the extrusion plate (11).

6. The profile structure battery box body dedicated for energy storage according to claim 1, wherein: The first ventilation cavity (13) and the second ventilation cavity (14) are evenly distributed in the partition board (7), and the first ventilation cavity (13) and the second ventilation cavity (14) are perpendicularly communicated with each other.

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