Lithium ion battery module with explosion-proof structure

Abstract

The utility model provides a lithium ion battery module with an explosion-proof structure. The lithium ion battery module comprises a battery shell, a top cover is mounted at the top end of the battery shell, a charging port is formed in the front side of the battery shell, a sealing cover is mounted on the front side of the battery shell, and the sealing cover is used for dustproof sealing of the charging port; the placement assembly is mounted in the battery shell, and a battery cell is placed in the placement assembly; the ejection mechanism is mounted at the bottom end of the placement assembly; the heat dissipation explosion-proof mechanism is mounted on the side surface of the battery shell, and the heat dissipation explosion-proof mechanism is used for accelerating the dissipation of heat in the battery shell. The battery cell is limited and placed through the heat dissipation assembly, meanwhile, heat of the battery cell is conducted out, the heat conducted out through the heat dissipation assembly is effectively and rapidly discharged under the action of the heat dissipation explosion-proof mechanism, it is guaranteed that the heat on the surface of the battery cell is effectively conducted out, the heat dissipation effect of the battery cell is improved, and the service life of the whole battery is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery module technology, and is a lithium-ion battery module with an explosion-proof structure. Background Technology

[0002] A lithium-ion battery is a rechargeable battery that primarily functions by the movement of lithium ions between the positive and negative electrodes. During charging and discharging, Li+ ions repeatedly insert and extract between the two electrodes: during charging, Li+ ions extract from the positive electrode, pass through the electrolyte, and insert into the negative electrode, leaving the negative electrode in a lithium-rich state; the reverse occurs during discharging. Lithium-based batteries are divided into lithium batteries and lithium-ion batteries. Mobile phones and laptops use lithium-ion batteries, which are commonly referred to as lithium batteries. These batteries typically use materials containing lithium as electrodes and are representative of modern high-performance batteries.

[0003] In existing technologies, the cells of current lithium-ion batteries are embedded in the battery casing, which makes it difficult to dissipate internal heat, reduces heat dissipation, and easily causes heat accumulation. This can lead to an increase in the internal temperature of the battery, resulting in combustion and explosion, and affecting the battery's lifespan. Utility Model Content

[0004] This invention addresses the technical problem of existing lithium-ion batteries where the cells are embedded inside the battery casing, hindering heat dissipation, reducing heat dissipation efficiency, and easily causing heat accumulation, leading to increased internal temperature and potential combustion or explosion, thus affecting battery life. The invention provides a lithium-ion battery module with an explosion-proof structure.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a lithium-ion battery module with an explosion-proof structure, the lithium-ion battery module with an explosion-proof structure includes:

[0007] A battery casing, wherein a top cover is installed on the top of the battery casing;

[0008] A placement assembly is installed inside a battery casing, and a battery cell is placed inside the placement assembly;

[0009] An ejection mechanism is installed at the bottom of the placement assembly and is used to eject the battery cell during replacement.

[0010] A heat dissipation and explosion-proof mechanism is installed on the side surface of the battery casing, and the heat dissipation and explosion-proof mechanism is used to accelerate the dissipation of heat inside the battery casing.

[0011] Furthermore, the battery casing includes an outer shell, an aluminum alloy inner shell, and a base. The aluminum alloy inner shell is fixedly connected to the inner wall of the outer shell, and the base is fixedly connected to the bottom side of the outer shell. Supports are installed at the four corners of the bottom side of the base.

[0012] Furthermore, two handles are installed on the top side surface of the top cover, and fixing bolts are threaded through the four corners of the top cover. The top cover is connected to the top of the outer shell by fixing bolts.

[0013] Furthermore, the placement assembly includes a heat sink, heat sink fins, and a thermally conductive silicone strip. The heat sink is fixedly connected to the inner wall of the bottom end of the aluminum alloy inner shell, heat sink fins are fixedly connected to the outer surface of the heat sink, and a thermally conductive silicone strip is fixedly installed on the inner wall surface of the heat sink.

[0014] Furthermore, multiple heat dissipation fins are evenly distributed on the outer surface of the heat dissipation shell, and thermally conductive silicone strips are evenly distributed inside the heat dissipation shell, and the heat dissipation shell is attached to the battery cell through the thermally conductive silicone strips.

[0015] Furthermore, the ejection mechanism includes an electric push rod, a limiting seat, and an adjusting seat. The electric push rod is fixedly installed on the inner wall of the bottom side of the aluminum alloy inner shell, and the output end of the electric push rod is fixedly connected to the adjusting seat. The bottom side of the adjusting seat is provided with a limiting seat fixedly installed on the inner wall of the heat dissipation shell.

[0016] Furthermore, a battery cell is placed on the top side of the adjustment seat, and the adjustment seat is slidably connected to the inner wall of the thermally conductive silicone strip.

[0017] Furthermore, the heat dissipation and explosion-proof mechanism includes a fixed shell, a mounting base, a heat dissipation filter, and a heat dissipation fan. The mounting base is fixedly connected to the outer edge of the fixed shell, the heat dissipation filter is installed at the outer end of the fixed shell, and the heat dissipation fan is fixedly connected to the inner wall of the fixed shell through a mounting bracket.

[0018] Furthermore, the mounting base is provided with bolts on its surface, and the mounting base is fixedly connected to the outer surface of the housing by the bolts.

[0019] Furthermore, the inner cavity of the fixed shell is connected to the heat dissipation holes opened on the surface of the outer shell. The heat dissipation holes penetrate the aluminum alloy inner shell and are connected to the inner cavity of the aluminum alloy inner shell. There are two fixed shells, which are arranged on the front side and the rear side of the outer shell.

[0020] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0021] The positive and progressive effects of this utility model are as follows:

[0022] The aforementioned lithium-ion battery module with an explosion-proof structure features a handle for easy handling. During operation, the battery cells generate heat. A heat dissipation component limits the placement of the cells and dissipates the heat. This dissipated heat is then effectively and quickly dissipated through the explosion-proof heat dissipation mechanism, ensuring efficient heat dissipation from the cell surface. This improves heat dissipation, prevents heat buildup and potential combustion or explosion, and extends the overall battery lifespan. After prolonged use, during cell maintenance and replacement, an ejector mechanism facilitates easy removal and replacement of the corresponding cells, simplifying the process and improving efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application.

[0024] Figure 1 This is a three-dimensional structural diagram of the lithium-ion battery module of this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of the rear side of the lithium-ion battery module of this utility model.

[0026] Figure 3 This is a top view of the connection structure of the outer shell of the lithium-ion battery module of this utility model.

[0027] Figure 4 This is a front cross-sectional view of the lithium-ion battery module of this utility model.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Battery casing; 11. Outer casing; 12. Base; 13. Support; 14. Aluminum alloy inner casing;

[0030] 2. Heat dissipation and explosion-proof mechanism; 21. Fixed shell; 22. Heat dissipation filter; 23. Mounting base; 24. Cooling fan; 25. Mounting bracket;

[0031] 3. Component placement; 31. Heat sink; 32. Heat sink fins; 33. Thermal conductive silicone strips;

[0032] 4. Battery cells;

[0033] 5. Ejection mechanism; 51. Electric push rod; 52. Limit seat; 53. Adjustment seat;

[0034] 6. Top cover;

[0035] 7. Handle;

[0036] 8. Charging port;

[0037] 9. Sealing cap. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0044] like Figure 1-4 As shown, the lithium-ion battery module with an explosion-proof structure includes:

[0045] Battery housing 1, with a top cover 6 installed at the top of the battery housing 1, a charging port 8 provided on the front side of the battery housing 1, and a sealing cover 9 installed on the front side of the battery housing 1, the sealing cover 9 being used for dustproof sealing of the charging port 8.

[0046] Placement component 3 is installed inside the battery casing 1, and battery cell 4 is placed inside the placement component 3;

[0047] The ejection mechanism 5 is installed at the bottom of the placement assembly 3 and is used to eject the battery cell 4 when it is replaced.

[0048] Heat dissipation and explosion-proof mechanism 2 is installed on the side surface of battery case 1 and is used to accelerate the dissipation of heat inside battery case 1.

[0049] The battery cell 4 is placed inside the placement assembly 3, and the top cover 6 is placed on top of the battery casing 1 for fixation. The handle 7 facilitates the transport of the battery. During the operation of the lithium-ion battery, the battery cell 4 generates heat. The heat dissipation assembly limits the placement of the battery cell 4 and conducts the heat away. The conducted heat is effectively dissipated quickly by the heat dissipation and explosion-proof mechanism 2, ensuring that the heat on the surface of the battery cell 4 is effectively dissipated, improving the heat dissipation effect of the battery cell 4, preventing the battery cell 4 from overheating and burning or exploding, and improving the overall service life of the battery. After long-term use, when the battery cell 4 is inspected and replaced, the ejection mechanism 5 facilitates the removal of the corresponding battery cell 4, making the removal and replacement of the battery cell 4 simple and efficient.

[0050] The battery casing 1 includes an outer shell 11, an aluminum alloy inner shell 14, and a base 12. The aluminum alloy inner shell 14 is fixedly connected to the inner wall of the outer shell 11, and the base 12 is fixedly connected to the bottom side of the outer shell 11. Supports 13 are installed at the four corners of the bottom side of the base 12.

[0051] The overall strength of the battery case 1 is improved by the aluminum alloy inner shell 14.

[0052] Two handles 7 are installed on the top side surface of the top cover 6, and fixing bolts are threaded through the four corners of the top cover 6. The top cover 6 is connected to the top of the outer shell 11 by fixing bolts.

[0053] The placement component 3 includes a heat dissipation shell 31, heat dissipation fins 32, and thermally conductive silicone strips 33. The heat dissipation shell 31 is fixedly connected to the inner wall of the bottom end of the aluminum alloy inner shell 14. The heat dissipation fins 32 are fixedly connected to the outer surface of the heat dissipation shell 31, and the thermally conductive silicone strips 33 are fixedly installed on the inner wall surface of the heat dissipation shell 31.

[0054] The heat sink 31 is used to place the battery cell 4. The heat-conducting silicone strip 33 limits the placement of the battery cell 4, effectively limiting and separating the battery cell 4, facilitating the heat dissipation of the battery cell 4. The heat is dissipated through the heat sink 31 and the heat dissipation fins 32.

[0055] Multiple heat dissipation fins 32 are evenly distributed on the outer surface of the heat dissipation shell 31, and thermally conductive silicone strips 33 are evenly distributed inside the heat dissipation shell 31. The heat dissipation shell 31 is attached to the battery cell 4 through the thermally conductive silicone strips 33.

[0056] The ejection mechanism 5 includes an electric push rod 51, a limiting seat 52, and an adjusting seat 53. The electric push rod 51 is fixedly installed on the inner wall of the bottom side of the aluminum alloy inner shell 14. The output end of the electric push rod 51 is fixedly connected to the adjusting seat 53. The bottom side of the adjusting seat 53 is provided with a limiting seat 52 fixedly installed on the inner wall of the heat dissipation shell 31.

[0057] When the electric push rod is activated, the electric push rod 51 pushes the fixedly connected adjustment seat 53 to move, so that the adjustment seat 53 can be moved to the top of the heat sink 31, making it easy for the battery cell 4 to be pushed out directly. After placement, it is easy to guide the battery cell 4 into the heat sink 31. The operation is convenient, the battery cell 4 can be easily removed and replaced, and the efficiency is improved.

[0058] The battery cell 4 is placed on the top side of the adjustment seat 53, and the adjustment seat 53 is slidably connected to the inner wall of the thermally conductive silicone strip 33.

[0059] The heat dissipation and explosion-proof mechanism 2 includes a fixed shell 21, a mounting base 23, a heat dissipation filter 22, and a heat dissipation fan 24. The mounting base 23 is fixedly connected to the outer edge of the fixed shell 21, the heat dissipation filter 22 is installed at the outer end of the fixed shell 21, and the heat dissipation fan 24 is fixedly connected to the inner wall of the fixed shell 21 through a mounting bracket 25.

[0060] When the heat dissipation component is working, the cooling fan 24 is activated. The cooling fan 24 accelerates the gas flow inside the battery case 1, which facilitates the dissipation of heat through the gas, effectively improving the heat dissipation effect of the heat dissipation component, preventing the battery cell 4 from accumulating heat and burning or exploding, and improving the overall service life of the battery.

[0061] The mounting base 23 is provided with bolts on its surface, and the mounting base 23 is fixedly connected to the outer surface of the outer shell 11 by the bolts.

[0062] The inner cavity of the fixed shell 21 is connected to the heat dissipation hole opened on the surface of the outer shell 11. The heat dissipation hole passes through the aluminum alloy inner shell 14 and is connected to the inner cavity of the aluminum alloy inner shell 14. There are two fixed shells 21, which are arranged on the front side and the rear side of the outer shell 11.

[0063] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0064] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A lithium-ion battery module with an explosion-proof structure, characterized in that, The lithium-ion battery module with an explosion-proof structure includes: Battery housing (1), with a top cover (6) installed on the top of the battery housing (1); Placement assembly (3), which is installed inside the battery case (1), and battery cell (4) is placed inside the placement assembly (3); The ejection mechanism (5) is installed at the bottom of the placement assembly (3) and is used to eject the battery cell (4) when it is replaced. Heat dissipation and explosion protection mechanism (2) is installed on the side surface of the battery case (1) and is used to accelerate the dissipation of heat inside the battery case (1).

2. The lithium-ion battery module with an explosion-proof structure as described in claim 1, characterized in that: The battery casing (1) includes an outer shell (11), an aluminum alloy inner shell (14), and a base (12). The inner wall of the outer shell (11) is fixedly connected to the aluminum alloy inner shell (14), and the bottom side of the outer shell (11) is fixedly connected to the base (12). Supports (13) are installed at the four corners of the bottom side of the base (12).

3. The lithium-ion battery module with an explosion-proof structure as described in claim 1, characterized in that: The top cover (6) has two handles (7) installed on its top side surface, and the top cover (6) has four corners with threaded fixing bolts. The top cover (6) is connected to the top of the outer shell (11) by fixing bolts.

4. The lithium-ion battery module with an explosion-proof structure as described in claim 1, characterized in that: The placement component (3) includes a heat sink (31), heat sink fins (32), and thermally conductive silicone strips (33). The heat sink (31) is fixedly connected to the inner wall of the bottom end of the aluminum alloy inner shell (14). Heat sink fins (32) are fixedly connected to the outer surface of the heat sink (31), and thermally conductive silicone strips (33) are fixedly installed on the inner wall surface of the heat sink (31).

5. The lithium-ion battery module with an explosion-proof structure as described in claim 4, characterized in that: The heat dissipation shell (31) has multiple heat dissipation fins (32) evenly distributed on its outer surface. The heat dissipation shell (31) has thermally conductive silicone strips (33) evenly distributed inside. The heat dissipation shell (31) is attached to the battery cell (4) through the thermally conductive silicone strips (33).

6. The lithium-ion battery module with an explosion-proof structure as described in claim 1, characterized in that: The ejection mechanism (5) includes an electric push rod (51), a limiting seat (52), and an adjusting seat (53). The electric push rod (51) is fixedly installed on the bottom inner wall of the aluminum alloy inner shell (14). The output end of the electric push rod (51) is fixedly connected to the adjusting seat (53). The bottom side of the adjusting seat (53) is provided with a limiting seat (52) fixedly installed on the inner wall of the heat sink shell (31).

7. The lithium-ion battery module with an explosion-proof structure as described in claim 6, characterized in that: The top side of the adjustment seat (53) is provided with a battery cell (4), and the adjustment seat (53) is slidably connected to the inner wall of the thermally conductive silicone strip (33).

8. The lithium-ion battery module with an explosion-proof structure as described in claim 1, characterized in that: The heat dissipation and explosion-proof mechanism (2) includes a fixed shell (21), a mounting base (23), a heat dissipation filter (22), and a heat dissipation fan (24). The mounting base (23) is fixedly connected to the outer edge of the fixed shell (21), and the heat dissipation filter (22) is installed at the outer end of the fixed shell (21). The heat dissipation fan (24) is fixedly connected to the inner wall of the fixed shell (21) through a mounting bracket (25).

9. The lithium-ion battery module with an explosion-proof structure as described in claim 8, characterized in that: The mounting base (23) is provided with bolts on its surface, and the mounting base (23) is fixedly connected to the outer surface of the outer shell (11) by bolts.

10. The lithium-ion battery module with an explosion-proof structure as described in claim 8, characterized in that: The inner cavity of the fixed shell (21) is connected to the heat dissipation hole opened on the surface of the outer shell (11). The heat dissipation hole passes through the aluminum alloy inner shell (14) and is connected to the inner cavity of the aluminum alloy inner shell (14). There are two fixed shells (21), which are located on the front side and the rear side of the outer shell (11).

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