Integral fixing and mounting mechanism for lithium battery module

Abstract

The invention discloses a lithium battery module integral fixing and mounting mechanism which comprises a shell, a plurality of square battery cells are arranged in the shell, a top cover is arranged on the shell, the lithium battery module integral fixing and mounting mechanism further comprises a first mounting and fixing plate, and the first mounting and fixing plate is connected to the right portion of the inner side of the shell. A first mounting fixing plate, a second mounting fixing plate, a top cover and a shell form a design structure for integrally fixing a battery cell module, a plurality of square battery cells can be pressed through a first pressing plate and a second pressing plate, and effective buffering and damping can be realized through cooperation of a first damping plate and a second damping plate with a damping boss; effective fixing and limiting can be achieved by matching the first fixing plate and the second fixing plate with the pressing cross beam, the square battery cells can be limited through the first limiting plate and the second limiting plate, mutual movement between the battery cells can be effectively prevented, and four core design elements including vibration prevention, displacement prevention, fixing and pressing can be met at the same time through simple components.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery module packaging, and in particular to an integral fixing and installation mechanism for a lithium battery module. Background Art

[0002] Lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solution. As an energy battery with high reaction efficiency, strong safety and small size, lithium battery is increasingly widely used; lithium battery has the advantages of small size and light weight, high energy and power, low self-discharge rate, environmental protection and long service life, making it gradually become the mainstream of power batteries. The battery pack of electric vehicles is composed of multiple battery modules connected in series and parallel. Therefore, when assembling the battery pack, the battery modules need to be fixed together.

[0003] At present, when electric vehicles are driving, the power battery module needs to withstand vibration or impact. In order to avoid the battery module from being squeezed and collided and deformed during the operation of the vehicle, and to ensure high voltage safety and reliable connection of the battery assembly structure, the battery module must be firmly installed in the frame of the battery assembly box. In order to ensure the stability of the battery module, multiple sets of fixed components are often provided inside the box. However, multiple sets of fixed components will undoubtedly increase the cost. Therefore, it is necessary to provide a new overall fixed installation mechanism for lithium battery modules to solve the above technical problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and propose a lithium battery module overall fixing installation mechanism, including a shell, a plurality of square battery cells are arranged inside the shell, a top cover is arranged on the shell, and also includes: a first installation fixing plate, the first installation fixing plate is connected to the right inner side of the shell, and the first installation fixing plate is used to limit and fix the right side of the square battery cell group; a second installation fixing plate, the first installation fixing plate is connected to the left inner side of the shell, and the second installation fixing plate is used to limit and fix the left side of the square battery cell group;

[0005] The first installation fixing plate comprises a first plate body, on which a plurality of first pressing plates, a first damping plate and a first fixing plate are arranged;

[0006] The second installation fixing plate comprises a second plate body, on which a plurality of second pressing plates, a second damping plate and a second fixing plate are arranged.

[0007] As a further description of the above technical solution: a support plate is arranged at the bottom of the shell, and the support plate is detachably connected to the first mounting plate and the second mounting plate by bolts, and a plurality of support plates are arranged below the support plate.

[0008] As a further description of the above technical solution: a plurality of clamping beams are arranged on the square battery cell, and two ends of the clamping beams are detachably connected to the first fixing plate and the second fixing plate respectively.

[0009] As a further description of the above technical solution: the top cover includes a top plate, a shock-absorbing boss and an anti-collision baffle, the shock-absorbing boss is connected to the inner side of the top plate, the anti-collision baffle is connected to the outer side of the top plate, the top plate is provided with a fixing hole connected to the outer shell, and the top plate is provided with a fuse inspection port, a signal transceiver port and a wire passing slot.

[0010] As a further description of the above technical solution: a mounting plate is connected to a side of the first plate body away from the second plate body, an insulating plate is connected below the first clamping plate, and the first shock-absorbing plate is located on an inner side of the shock-absorbing boss.

[0011] As a further description of the above technical solution: the first clamping plate is located on the side of the first plate body close to the second plate body, the first fixing plate is located on the side of the first plate body away from the second plate body, and the first clamping plate, the first shock-absorbing plate and the first fixing plate are alternately arranged on the first plate body.

[0012] As a further description of the above technical solution: the second clamping plate is connected to the insulating plate at the bottom, the second shock-absorbing plate is located on the inner side of the shock-absorbing boss, the second clamping plate is located on the side of the second plate body close to the first plate body, the second fixed plate is located on the side of the second plate body away from the first plate body, and the second clamping plate, the second shock-absorbing plate and the second fixed plate are alternately arranged on the second plate body.

[0013] As a further description of the above technical solution: a plurality of first limiting plates are arranged on a side of the first plate body close to the second plate body, and a plurality of second limiting plates are arranged on a side of the second plate body close to the first plate body.

[0014] As a further description of the above technical solution: a cavity is formed between the shell and the first plate body and the second plate body, a plurality of ventilation grooves are opened on the support plate, a plurality of through holes are opened on the support plate, a first heat dissipation component is arranged under the top cover, and a second heat dissipation component is detachably connected to the cavity.

[0015] As a further description of the above technical solution: the first shock-absorbing plate and the second shock-absorbing plate are detachably connected with a buffer component near the shock-absorbing boss side.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] 1. The present invention forms a design structure of an integrally fixed battery cell module through the first mounting plate, the second mounting plate, the top cover and the shell. The first and second clamping plates on the first and second plates can be used to clamp multiple square batteries. The first and second damping plates cooperate with the damping bosses to achieve effective buffering and shock absorption. The first and second fixing plates cooperate to clamp the crossbeam to achieve effective fixed limiting. The first and second limiting plates can limit multiple square batteries between the first and second plates, which can effectively prevent the batteries from moving with each other. The four core design elements of anti-vibration, anti-displacement, fixing and clamping can be met at the same time through simple components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an integral fixed installation mechanism of the present invention;

[0019] Figure 2 It is an internal schematic diagram of an integral fixed installation mechanism of the present invention;

[0020] Figure 3 An exploded view of an integral fixed installation mechanism of the present invention;

[0021] Figure 4 It is a cross-sectional view of an integral fixed installation mechanism of the present invention;

[0022] Figure 5 for Figure 1 A schematic diagram of the structure of the first mounting plate in the overall fixed mounting mechanism;

[0023] Figure 6 for Figure 1 A schematic diagram of the structure of the second mounting plate in the overall fixed mounting mechanism;

[0024] Figure 7 for Figure 1 A schematic diagram of the installation structure of the first installation fixing plate and the second installation fixing plate in the overall fixed installation mechanism;

[0025] Figure 8 for Figure 5 A partial enlarged view of point A in the overall fixed installation mechanism;

[0026] Fig. 9 for Figure 1 A schematic diagram of the structure of the support plate in the overall fixed installation mechanism;

[0027] Fig.10 for Figure 1 Schematic diagram of the installation structure of the support plate in the overall fixed installation mechanism.

[0028] Legend:

[0029] 1. Shell; 2. Square battery cell; 3. Top cover; 4. First mounting plate; 5. Second mounting plate; 6. Support plate; 7. Bolts; 8. Support plate; 9. Compression beam; 10. Mounting plate; 11. Insulation plate; 12. Cavity; 13. Vent; 14. First heat dissipation assembly; 15. Second heat dissipation assembly; 16. Buffer; 17. Through hole; 31. Top plate; 32. Shock-absorbing boss; 33. Anti-collision baffle; 34. Fixing hole; 35. Fuse inspection port; 36. Signal transceiver port; 37. Through-line slot; 41. First plate body; 42. First clamping plate; 43. First shock-absorbing plate; 44. First fixing plate; 45. First limit plate; 51. Second plate body; 52. Second clamping plate; 53. Second shock-absorbing plate; 54. Second fixing plate; 55. Second limit plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "disposed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] See also Figure 1-10The present invention provides a technical solution: a lithium battery module overall fixing installation mechanism of the present invention comprises a shell 1, a plurality of square battery cells 2 are arranged inside the shell 1, a top cover 3 is arranged on the shell 1, and also comprises: a first mounting fixing plate 4, the first mounting fixing plate 4 is connected to the right inner side of the shell 1, and the first mounting fixing plate 4 is used to limit and fix the right side of the square battery cell group; a second mounting fixing plate 5, the first mounting fixing plate 4 is connected to the left inner side of the shell 1, and the second mounting fixing plate 5 is used to limit and fix the left side of the square battery cell group; the first mounting fixing plate 4 comprises a first plate body 41, and a plurality of first clamping plates 42, a first shock absorbing plate 43 and a first fixing plate 44 are arranged on the first plate body 41; the second mounting fixing plate 5 comprises a second plate body 51, and a plurality of second clamping plates 52, a second shock absorbing plate 53 and a second fixing plate 54 are arranged on the second plate body 51.

[0034] In this embodiment, the first mounting plate 4, the second mounting plate 5 and the top cover 3 form a design structure for fixing the battery cell module as a whole with the housing 1. The first clamping plate 42 and the second clamping plate 52 on the first plate body 41 and the second plate body 51 can be used to clamp multiple square battery cells 2. The first damping plate 43 and the second damping plate 53 cooperate with the damping boss 32 to achieve effective buffering and shock absorption. The first fixing plate 44 and the second fixing plate 54 cooperate to clamp the crossbeam 9 to achieve effective fixed limiting. The first limiting plate 45 and the second limiting plate 55 can limit the multiple square battery cells 2 between the first plate body 41 and the second plate body 51, which can effectively prevent the battery cells from moving with each other. The four core design elements of anti-vibration, anti-displacement, fixing and clamping can be met at the same time through simple components, simplifying the structure, reducing the number of components, achieving an overall cost reduction of about 70%, ensuring the reliability and safety of the battery cell module, and meeting the core design requirements of anti-vibration, fixing and clamping.

[0035] like Figure 2 and Figure 3As shown, specifically, a support plate 6 is provided at the bottom of the outer shell 1, and the support plate 6 is detachably connected to the first mounting plate 4 and the second mounting plate 5 by bolts 7, a plurality of support plates 8 are provided below the support plate 6, and a plurality of clamping beams 9 are provided on the square battery cell 2, and the two ends of the clamping beams 9 are detachably connected to the first fixing plate 44 and the second fixing plate 54 respectively; the support plate 6 is located at the bottom of the outer shell 1, and is detachably connected to the first mounting plate 4 and the second mounting plate 5 by bolts 7. This design facilitates maintenance or replacement when necessary. A plurality of support plates 8 are arranged under the support plate 6, which can provide additional stability and support to ensure the firmness of the entire structure. A plurality of clamping beams 9 are arranged above the square battery cells 2, and the two ends of these clamping beams are detachably connected to the first fixing plate 44 and the second fixing plate 54 respectively, to ensure that the battery cells will not shift due to vibration or thermal expansion during operation. The combination of the support plate and the support plate provides a powerful support system that can effectively withstand various forces on the battery cells during operation, thereby preventing deformation or damage to the battery cells. The connection between the clamping beams and the fixing plates ensures that the battery cells can be firmly fixed under any circumstances to prevent displacement or misalignment caused by external factors, thereby improving the safety and reliability of the battery pack. Through the effective support and limiting mechanism, not only the stability and safety of the square battery cells are ensured, but also the maintenance and heat dissipation performance are optimized, making the entire device more reliable and efficient in practical applications.

[0036] like Figure 1 and Figure 8 As shown, specifically, the top cover 3 includes a top plate 31, a shock absorbing boss 32 and an anti-collision baffle 33, the shock absorbing boss 32 is connected to the inner side of the top plate 31, the anti-collision baffle 33 is connected to the outer side of the top plate 31, a fixing hole 34 connected to the shell 1 is opened on the top plate 31, and a fuse inspection port 35, a signal receiving and transmitting port 36 and a wire through slot 37 are opened on the top plate 31; the top plate 31 is the main bearing structure of the top cover 3, which is connected to the shell 1 to provide overall stability, and the shock absorbing boss 32 is connected to the inner side of the top plate 31, and is designed as a boss shape, In order to enhance the shock absorption effect, absorb the stress caused by external impact or vibration, and protect the internal battery cells, the anti-collision baffle 33 is installed on the outer side of the top plate 31, which is responsible for preventing damage caused by impact of external objects, and providing additional physical protection for the lithium battery module. The shock-absorbing boss 32 disperses the impact force to a larger area through the raised design, further improving the stability of the battery module in a dynamic environment. The existence of the anti-collision baffle 33 can effectively prevent damage caused by accidental impact or external force, and provides additional protection for the safety of the battery module.

[0037] like Figure 5 and Figure 6As shown, specifically, the first plate body 41 is connected to the mounting plate 10 on the side away from the second plate body 51, the first pressing plate 42 is connected to the insulating plate 11 below, the first shock-absorbing plate 43 is located on the inner side of the shock-absorbing boss 32, the first pressing plate 42 is located on the side of the first plate body 41 close to the second plate body 51, the first fixing plate 44 is located on the side of the first plate body 41 away from the second plate body 51, the first pressing plate 42, the first shock-absorbing plate 43 and the first fixing plate 44 are alternately arranged on the first plate body 41, the second pressing plate 52 is connected to the insulating plate 11 below, the second shock-absorbing plate 53 is located on the inner side of the shock-absorbing boss 32, the second pressing plate 52 is located on the side of the second plate body 51 close to the first plate body 41, the second fixing plate 54 is located on the side of the second plate body 51 away from the first plate body 41, the second pressing plate 52, the second shock-absorbing plate 53 and the second fixing plate 54 are alternately arranged on the second plate body 51.

[0038] In this embodiment, the first clamping plate 42, the first shock absorbing plate 43 and the first fixed plate 44 are alternately arranged on the first plate body 41, and the second clamping plate 52, the second shock absorbing plate 53 and the second fixed plate 54 are alternately arranged on the second plate body 51. The alternating arrangement ensures the fastening and support of the first plate body and the second plate body, enhances the overall structural strength, and reduces the risk of deformation. The design of the shock absorbing plate can effectively absorb vibration, protect the battery cells and other components from mechanical shock, and increase the service life of the equipment. The use of the insulating plate 11 ensures electrical safety, prevents the risk of short circuit, and enhances the safety of the system.

[0039] like Figure 6 and Figure 7 As shown, specifically, a plurality of first limiting plates 45 are provided on the side of the first plate body 41 close to the second plate body 51, and a plurality of second limiting plates 55 are provided on the side of the second plate body 51 close to the first plate body 41; the plurality of first limiting plates 45 and the plurality of second limiting plates 55 can be used to limit the plurality of square battery cells 2 between the first plate body 41 and the second plate body 51, and the mutual movement between the battery cells can be effectively prevented, thereby ensuring the stability and safety of the battery pack during use, and the physical limitation of the limiting plates can prevent the battery cells from being displaced due to vibration, temperature changes or other external factors, thereby improving the reliability of the entire device.

[0040] like Fig. 9 and Fig.10As shown, specifically, a cavity 12 is formed between the outer shell 1 and the first plate body 41 and the second plate body 51, a plurality of ventilation grooves 13 are provided on the support plate 6, a plurality of through holes 17 are provided on the support plate 8, a first heat dissipation component 14 is provided under the top cover 3, and a second heat dissipation component 15 is detachably connected to the cavity 12; a cavity 12 is formed between the outer shell 1 and the first plate body 41 and the second plate body 51, which is conducive to air circulation and accommodating the heat dissipation components, and the first heat dissipation component 14 can dissipate heat above the square battery cell 2 through the operation of the first heat dissipation component 14, and the second heat dissipation component 15 can work, and the blown wind passes through the plurality of through holes 17 on the support plate 8 and the plurality of ventilation grooves 13 provided on the support plate 6 and enters the bottom of the square battery cell 2, thereby enhancing the heat dissipation effect.

[0041] like Figure 7 and Figure 8 As shown, specifically, the first shock absorbing plate 43 and the second shock absorbing plate 53 are detachably connected with a buffer member 16 near the shock absorbing boss 32; the buffer member 16 can adopt a damping spring, which can absorb the vibration of the shock absorbing boss 32 after shock absorption, thereby enhancing the shock absorption effect of the mechanism.

[0042] Working principle: The first mounting plate 4, the second mounting plate 5 and the top cover 3 form a design structure with the outer shell 1 to fix the battery cell module as a whole. The first clamping plate 42 and the second clamping plate 52 on the first plate body 41 and the second plate body 51 can be used to clamp multiple square battery cells 2. The first damping plate 43 and the second damping plate 53 cooperate with the damping boss 32 to achieve effective buffering and shock absorption. The first fixing plate 44 and the second fixing plate 54 cooperate to clamp the crossbeam 9 to achieve effective fixed limiting. The first limiting plate 45 and the second limiting plate 55 can limit the multiple square battery cells 2 between the first plate body 41 and the second plate body 51, which can effectively prevent the battery cells from moving with each other. The four core design elements of anti-vibration, anti-displacement, fixing and clamping can be met at the same time through simple components, which simplifies the structure, reduces the number of components, and reduces the overall cost by about 70%.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lithium battery module integral fixing installation mechanism, characterized in that: The invention comprises a housing (1), a plurality of square battery cells (2) are arranged inside the housing (1), a top cover (3) is arranged on the housing (1), and further comprises: A first mounting fixing plate (4), the first mounting fixing plate (4) being connected to the right inner portion of the housing (1), the first mounting fixing plate (4) being used to limit and fix the right side of the square battery cell group; A second mounting fixing plate (5), wherein the first mounting fixing plate (4) is connected to the inner left portion of the housing (1), and the second mounting fixing plate (5) is used to limit and fix the left side of the square battery cell group; The first mounting fixing plate (4) comprises a first plate body (41), on which a plurality of first pressing plates (42), a first damping plate (43) and a first fixing plate (44) are arranged; The second installation fixing plate (5) comprises a second plate body (51), on which a plurality of second pressing plates (52), a second damping plate (53) and a second fixing plate (54) are arranged.

2. A lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: A support plate (6) is provided at the bottom of the housing (1); the support plate (6) is detachably connected to the first mounting plate (4) and the second mounting plate (5) via bolts (7); and a plurality of support plates (8) are provided below the support plate (6).

3. The lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: A plurality of clamping crossbeams (9) are provided on the square battery core (2), and two ends of the clamping crossbeams (9) are detachably connected to a first fixing plate (44) and a second fixing plate (54) respectively.

4. The lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: The top cover (3) comprises a top plate (31), a shock absorbing boss (32) and an anti-collision baffle (33); the shock absorbing boss (32) is connected to the inner side of the top plate (31); the anti-collision baffle (33) is connected to the outer side of the top plate (31); a fixing hole (34) connected to the outer shell (1) is provided on the top plate (31); a fuse inspection port (35), a signal transceiver port (36) and a wire passage slot (37) are provided on the top plate (31).

5. The lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: A mounting plate (10) is connected to the side of the first plate body (41) away from the second plate body (51), an insulating plate (11) is connected below the first clamping plate (42), and the first damping plate (43) is located on the inner side of the damping boss (32).

6. The lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: The first clamping plate (42) is located on a side of the first plate body (41) close to the second plate body (51), the first fixing plate (44) is located on a side of the first plate body (41) away from the second plate body (51), and the first clamping plate (42), the first damping plate (43) and the first fixing plate (44) are alternately arranged on the first plate body (41).

7. The lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: The second clamping plate (52) is connected to the insulating plate (11) at the bottom, the second shock-absorbing plate (53) is located on the inner side of the shock-absorbing boss (32), the second clamping plate (52) is located on the side of the second plate body (51) close to the first plate body (41), the second fixing plate (54) is located on the side of the second plate body (51) away from the first plate body (41), and the second clamping plate (52), the second shock-absorbing plate (53) and the second fixing plate (54) are alternately arranged on the second plate body (51).

8. The lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: A plurality of first limiting plates (45) are provided on one side of the first plate body (41) close to the second plate body (51), and a plurality of second limiting plates (55) are provided on one side of the second plate body (51) close to the first plate body (41).

9. The lithium battery module integral fixing and installation mechanism according to claim 2, characterized in that: A cavity (12) is formed between the shell (1) and the first plate body (41) and the second plate body (51); a plurality of ventilation grooves (13) are provided on the support plate (6); a plurality of through holes (17) are provided on the support plate (8); a first heat dissipation component (14) is provided below the top cover (3); and a second heat dissipation component (15) is detachably connected to the cavity (12).

10. The lithium battery module integral fixing and installation mechanism according to claim 1, characterized in that: The first shock absorbing plate (43) and the second shock absorbing plate (53) are detachably connected with a buffer component (16) on the side close to the shock absorbing boss (32).

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