A box structure facilitating battery pack stacking installation

Abstract

The application discloses a box structure convenient for battery PACK stacking installation and belongs to the technical field of battery boxes. The box structure comprises a frame body, a cover body covering the upper surface of the frame body and a battery pack arranged between the cover body and the frame body. The upper surface of the cover body is provided with a quadrangular frustum-shaped fitting groove. The lower end of the battery pack is provided with a quadrangular frustum-shaped protrusion matched with the fitting groove. The cover body is provided with an extrusion type connecting mechanism used for connecting the frame body. The extrusion type supporting mechanism arranged on the frame body can fix the battery pack in the frame body. The adjacent frame body and the cover body can be fixedly connected. The component used for contact connection between the extrusion type supporting mechanism and the battery pack is an elastic structure, so that a certain buffering effect can be achieved, and vibration can be avoided from being directly transmitted to the battery pack to cause damage of the battery pack.

Description

Technical Field

[0001] This invention relates to the field of battery enclosure technology, specifically to an enclosure structure that facilitates the stacking and installation of battery packs. Background Technology

[0002] As battery technology continues to develop, the energy density and performance of individual battery cells are constantly improving. However, this also places higher demands on battery installation and protection. Stacked battery packs can provide better physical protection for batteries, preventing them from being damaged by external forces such as collisions and compression during use, thus ensuring the safety and stability of the batteries. The existing battery pack stacking enclosure structure still has the following technical problems when in use, such as: 1. The existing battery pack stacking enclosure structure requires a large number of bolts to fix the batteries. This method results in extremely low efficiency when stacking several enclosure structures, which is not conducive to improving installation efficiency. 2. The existing battery pack stacking box structure is fixed with bolts, which makes the connection between the battery and the box rigid. This is not conducive to the vibration reduction of the battery. During use, the battery is easily affected by vibration, which can not only cause the battery to malfunction and become unusable, but also cause safety accidents and endanger the life safety of users. Therefore, a housing structure that facilitates the stacking and installation of battery packs is needed to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a housing structure that facilitates the stacking and installation of battery packs, thereby solving the problems mentioned in the background art, such as the low installation efficiency of existing battery pack stacking and installation housing structures, the lack of vibration damping structures, which easily lead to malfunctions and safety accidents during use.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A housing structure for convenient battery pack stacking includes a frame and a cover covering its upper surface. The upper surface of the cover is provided with a frustum-shaped fitting groove, and a battery pack is disposed between the cover and the frame. The lower end of the battery pack is provided with a frustum-shaped protrusion that matches the fitting groove. The cover is provided with a compression connection mechanism for connecting with the frame, and the frame is provided with a compression support mechanism for fixing the battery pack.

[0005] Preferably, the upper surface of the frame and the cover are provided with corresponding fixing holes, and the fixing holes on the cover extend through its upper and lower sides. The frame and the cover can be fixedly connected by bolts to the fixing holes.

[0006] Preferably, the compression connection mechanism includes an installation groove disposed on the inner side of the frame, and the installation groove penetrates the inner side and lower surface of the frame. The installation groove is provided on both sides of the frame. The inner side of the mating groove is provided with two sets of symmetrical L-shaped grooves, and the L-shaped grooves penetrate the inner side of the mating groove and the lower surface of the cover. The inner end of a connecting rod is movably inserted into each L-shaped groove, and the outer end of the connecting rod is disposed in the mating groove. The outer ends of the connecting rods on the same side are connected by a push bar, and the inner end of the connecting rod is provided with a limiting groove coaxial with it. One end of a limiting rod is movably inserted into the limiting groove, and the other end of the limiting rod is fixedly connected to the L-shaped groove. Two push plates are provided below the cover, and the upper surface of each push plate is provided with a protrusion. The inner end of the connecting rod is provided with a corresponding protrusion, and the inner end of the connecting rod is connected to the corresponding protrusion on the push plate.

[0007] Preferably, the outer side of the battery pack is fixedly connected to an extended connecting frame for connecting to the inner bottom surface of the frame.

[0008] Preferably, the compression-type support mechanism includes pressure blocks corresponding to the push plates. Each pressure block is movably disposed at the opening at the upper end of the mounting groove, and limit grooves are provided on both sides of the opening at the upper end of the mounting groove. Protrusions are provided on both the upper and lower sides of the pressure block, and these protrusions are slidably connected to the limit grooves on both sides of the upper end of the mounting groove. Two pressure plates are provided in each mounting groove, with the two pressure plates facing opposite directions. The lower pressure plate extends movably to the bottom of the frame. A driven plate is movably disposed in the mounting groove, and a set of cross grooves are evenly distributed within the driven plate. A limit shaft movably passes through each cross groove, and both ends of the limit shaft are fixedly connected to the mounting groove. A limit disc coaxial with the limit shaft is fixedly connected to the portion of the limit shaft within the cross groove, and a movably nested mechanism is provided between the limit disc and the inner side of the cross groove, located on the outer side of the limit shaft. The spring has two U-shaped grooves evenly distributed on opposite ends of the pressure plates, and a corresponding support rod is movably inserted through each U-shaped groove. The upper and lower sides of the driven plate are provided with support grooves corresponding to the support rods, and one end of the corresponding support rod is movably inserted into the support groove. The other end of the support rod is fixedly connected to the tail end of the corresponding follower rod, and the head end of the follower rod is movably inserted through the mounting groove into the interior of the frame. The head ends of the follower rods on the same side and at the same height are connected by a positioning plate. The side of the positioning plate facing away from the driven plate is evenly provided with connecting grooves, and one end of the corresponding connecting block is movably inserted into the connecting groove. The other end of the connecting block is fixedly connected to the corresponding top pressure strip. A second spring is movably installed on the outer side of each connecting block, and the second spring is located between the top pressure strip and the corresponding positioning plate.

[0009] Preferably, the cross-section of the pressure-bearing block is a right-angled trapezoid, and the inclined surface of the pressure-bearing block faces the pressure-bearing plate.

[0010] Preferably, the opposite ends of the two bearing plates are both right-angled triangular prisms, the driven plate is an isosceles trapezoidal structure, and the inclined surfaces of the two right-angled triangular prisms correspond to the inclined surfaces of the driven plate, respectively.

[0011] Preferably, the tail end of the follower rod is provided with a spherical structure, and the axis of the support rod passes through the center of the spherical structure, and the diameter of the spherical structure is larger than the inner diameter of the U-shaped groove.

[0012] Preferably, the two sets of follower rods on the same side are arranged in a figure-eight shape.

[0013] Preferably, the positioning plate and the top pressure strip are of the same length, and both are less than the inner length of the outer connecting frame on the battery pack.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This convenient battery pack stacking and installation box structure, through the mutual compression between adjacent frames and covers, and the compression of the battery pack on the cover, not only allows the compression support mechanism on the frame to fix the battery pack inside the frame, but also enables the adjacent frames and covers to be fixedly connected. In addition, the components on the compression support mechanism that are used to contact and connect with the battery pack are elastic structures, which can play a certain buffering role and prevent vibration from being directly transmitted to the battery pack and causing damage to the battery pack. 1. During the stacking installation process, the boxes consisting of the frame and the cover are stacked one layer at a time. At this time, the lower surface of the upper frame of the upper box will be in close contact with the upper surface of the lower cover. In addition, the lower end of the upper battery pack will be supported in the fitting groove on the lower cover, which will cause the push bar to be squeezed and move, thereby causing the push plate to push the corresponding pressure block to move, so that the push plate extends into the mounting groove, thereby connecting the lower cover and the lower frame. As the pressure block moves, it will squeeze the pressure plate, which will push the driven plate to move until the top pressure bar contacts the inner side of the upper outer connecting frame of the battery pack. At this point, the inner side of the upper outer connecting frame of the battery pack is subjected to two opposing supporting forces, thereby achieving the purpose of fixing the battery pack. Compared with the previous bolt fixing method, it is more efficient. 2. A connecting groove, connecting block and spring 2 are set between the top pressure strip and the positioning plate to create a buffer between the positioning plate and the battery pack. When subjected to vibration, it can prevent the vibration from being directly transmitted to the battery pack, thereby helping to protect the battery pack and prevent it from being damaged by vibration, which could lead to a safety accident. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure viewed from below; Figure 4 For the present invention Figure 3 Enlarged structural diagram of point A in the middle; Figure 5 This is a schematic cross-sectional view of the cover structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram of point B; Figure 7 This is a schematic cross-sectional view of the frame structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram of point C; Figure 9 For the present invention Figure 7 Enlarged structural diagram of point D; Figure 10 This is a schematic diagram of the connection structure between the pressure plate and the driven plate of the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram of point E in the middle; Figure 12 For the present invention Figure 10 Schematic diagram of partial cross-section structure; Figure 13 For the present invention Figure 12 A magnified structural diagram of point F in the middle.

[0016] In the diagram: 1. Frame; 2. Cover; 3. Fitting groove; 4. Push bar; 5. Pressure plate; 6. Battery pack; 7. Push plate; 8. L-shaped groove; 9. Connecting rod; 10. Limiting groove; 11. Limiting rod; 12. Positioning plate; 13. Follower rod; 14. Driven plate; 15. Mounting groove; 16. Limiting slide groove; 17. Pressure block; 18. Cross groove; 19. Limiting shaft; 20. Limiting disc; 21. Spring 1; 22. Top pressure bar; 23. Connecting groove; 24. Connecting block; 25. Spring 2; 26. Support groove; 27. Support rod; 28. U-shaped groove. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-13 The present invention provides the following technical solution: Example 1: To address the problem of low installation efficiency in conventional battery pack stacking enclosure structures, the following technical solution is provided: a enclosure structure for convenient battery pack stacking includes a frame 1 and a cover 2 covering its upper surface. The upper surface of the cover 2 is provided with a frustum-shaped fitting groove 3, and a battery pack 6 is disposed between the cover 2 and the frame 1. The lower end of the battery pack 6 is provided with a frustum-shaped protrusion that matches the fitting groove 3. The cover 2 is provided with a compression connection mechanism for connecting with the frame 1, and the frame 1 is provided with a compression support mechanism for fixing the battery pack 6. The upper surface of the frame 1 and the cover 2 are provided with corresponding fixing holes, and the fixing holes on the cover 2 extend through its upper and lower sides. By connecting with the fixing holes using bolts, the frame 1 and the cover 2 can be fixedly connected. The fixing holes are mainly used to connect the uppermost frame 1 to the uppermost cover 2.

[0019] The compression connection mechanism includes a mounting groove 15 located inside the frame 1, which extends through the inner side and lower surface of the frame 1. The mounting groove 15 is located on both sides of the frame 1. Two sets of symmetrical L-shaped grooves 8 are located inside the mating groove 3, extending through the inner side of the mating groove 3 and the lower surface of the cover 2. The inner end of a connecting rod 9 is movably inserted into each L-shaped groove 8, and the outer end of the connecting rod 9 is located within the mating groove 3. The outer ends of the connecting rods 9 on the same side are connected by a pushing strip 4. A limiting groove 10, coaxial with the inner end of the connecting rod 9, is located. One end of a limiting rod 11 movably extends into the limiting groove 10, and the other end of the limiting rod 11 is fixedly connected to the L-shaped groove 8. Two pushing plates 7 are located below the cover 2. Each push plate 7 has a protrusion on its upper surface. The inner end of the connecting rod 9 is correspondingly set with the protrusion, and the inner end of the connecting rod 9 is connected to the protrusion on the corresponding push plate 7. When the quadrangular protrusion at the lower end of the battery pack 6 engages with the corresponding fitting groove 3, the push bar 4 will be squeezed by the quadrangular protrusion and move along the axis of the connecting rod 9. At this time, it will drive the push plate 7 to move synchronously. When the push plate 7 moves, it will gradually extend into the mounting groove 15, so that the cover 2 can be connected to its corresponding frame 1. This avoids the time-consuming and laborious problem caused by the previous use of bolts and helps to improve the installation efficiency. An extended connecting frame is fixedly connected to the outside of the battery pack 6 for connecting with the inner bottom surface of the frame 1.

[0020] The compression-type support mechanism includes pressure blocks 17 corresponding to the push plates 7. The pressure blocks 17 are movably disposed at the opening at the upper end of the mounting groove 15, and limit grooves 16 are provided on both sides of the opening at the upper end of the mounting groove 15. The upper and lower sides of the pressure blocks 17 are provided with protrusions, and the protrusions are slidably connected to the limit grooves 16 on both sides of the upper end of the mounting groove 15. Two pressure plates 5 are provided in each mounting groove 15, and the two pressure plates 5 are arranged in opposite directions. The lower pressure plate 5 extends movably to the lower part of the frame 1. A driven plate 14 is movably disposed in the mounting groove 15, and a set of cross grooves 18 are evenly arranged in the driven plate 14. A limit shaft 19 is movably passed through each cross groove 18, and the two ends of the limit shaft 19 are fixedly connected. Within the mounting groove 15, a limiting disc 20 coaxial with the portion of the limiting shaft 19 located within the cross groove 18 is fixedly connected. A spring 21, movably nested on the outside of the limiting shaft 19, is provided between the limiting disc 20 and the inner side of the cross groove 18. U-shaped grooves 28 are evenly distributed on the opposite ends of the two bearing plates 5, and a corresponding support rod 27 movably passes through each U-shaped groove 28. Support grooves 26 corresponding to the support rods 27 are provided on both the upper and lower sides of the driven plate 14, and one end of the corresponding support rod 27 movably extends into the support groove 26. The other end of the support rod 27 is fixedly connected to the tail end of the corresponding follower rod 13, and the head end of the follower rod 13 movably passes through the mounting groove 15 and extends into the interior of the frame 1. Furthermore, the ends of the follower rods 13 at the same height are connected by positioning plates 12. During use, because the push plate 7 extends into the mounting groove 15, the upper pressure plate 5 is compressed. Since the box formed by the frame 1 and the cover 2 is stacked, the lower pressure plate 5 is also compressed. At this time, the two pressure plates 5 in the same mounting groove 15 will move closer to each other, thereby compressing the driven plate 14, causing the driven plate 14 to gradually approach the battery pack 6. During this process, due to the setting of the support groove 26, support rod 27 and U-shaped groove 28, the follower rod 13 moves along its axis, thereby driving the positioning plate 12 connected to it to move synchronously until the top pressure strip 22 connected to the positioning plate 12 and the battery are aligned. The inner side of the connecting frame extending from the upper part of group 6 is contacted and squeezed together. At this time, the battery pack 6 is subjected to a force in opposite directions, which can be fixed and avoids the problem of low efficiency caused by using bolts to connect the battery pack 6 to the frame 1 in the past. The cross section of the pressure block 17 is a right trapezoid, and the inclined surface of the pressure block 17 is set towards the pressure plate 5. The opposite ends of the two pressure plates 5 are right triangular prisms. The driven plate 14 is an isosceles trapezoidal structure, and the inclined surfaces of the two right triangular prisms correspond to the inclined surfaces of the driven plate 14 respectively. The tail end of the follower rod 13 is provided with a spherical structure, and the axis of the support rod 27 passes through the center of the spherical structure. The diameter of the spherical structure is larger than the inner diameter of the U-shaped groove 28. The two sets of follower rods 13 on the same side are arranged in a figure-eight shape.

[0021] Example 2: To address the issue of the lack of a buffer mechanism in the previous battery pack stacking enclosure structure, which easily leads to the battery being affected by vibration, the following technical solution is provided: Specifically, in the vertical direction of the positioning plate 12, a connecting groove 23 is evenly provided on the side facing away from the driven plate 14. One end of a corresponding connecting block 24 is movably inserted into the connecting groove 23, and the other end of the connecting block 24 is fixedly connected to the corresponding top pressure strip 22. A second spring 25 is movably provided on the outer side of each connecting block 24, and the second spring 25 is located between the top pressure strip 22 and the corresponding positioning plate 12. The positioning plate 12 and the top pressure strip 22 have the same length, and both of their lengths are less than the inner length of the outer connecting frame on the battery pack 6. In use, because the connecting groove 23, connecting block 24 and second spring 25 are provided between the top pressure strip 22 and the positioning plate 12, vibration cannot be directly transmitted from the positioning plate 12 to the battery pack 6, thereby buffering the battery pack 6 and reducing the impact of vibration, so as to prevent vibration from damaging the battery pack 6 and causing a safety accident.

[0022] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A housing structure for convenient battery pack stacking, comprising a frame (1) and a cover (2) covering its upper surface, characterized in that: The upper surface of the cover (2) is provided with a quadrangular frustum-shaped fitting groove (3), and a battery pack (6) is provided between the cover (2) and the frame (1). The lower end of the battery pack (6) is provided with a quadrangular frustum-shaped protrusion that matches the fitting groove (3). The cover (2) is provided with a compression connection mechanism for connecting with the frame (1). The compression connection mechanism includes an installation groove (15) provided inside the frame (1), and the installation groove (15) penetrates the inner side and the lower surface of the frame (1). The installation groove (15) is provided on both sides inside the frame (1). The inner side of the fitting groove (3) is provided with two sets of symmetrical L-shaped grooves (8), and the L-shaped grooves (8) penetrate the inner side of the fitting groove (3) and the lower surface of the cover (2). Each L-shaped groove (8) has a movable... The inner end of the connecting rod (9) extends into the inner end, and the outer end of the connecting rod (9) is set in the fitting groove (3). The outer ends of the connecting rod (9) on the same side are connected by the push strip (4). The inner end of the connecting rod (9) is provided with a limiting groove (10) coaxial with it. One end of the limiting rod (11) extends into the limiting groove (10), and the other end of the limiting rod (11) is fixedly connected to the L-shaped groove (8). Two push plates (7) are provided below the cover (2), and each push plate (7) has a protrusion on its upper surface. The inner end of the connecting rod (9) is provided with a protrusion corresponding to each other, and the inner end of the connecting rod (9) is connected to the protrusion on the corresponding push plate (7). The frame (1) is provided with a compression support mechanism for fixing the battery pack (6).

2. The housing structure for convenient battery pack stacking installation according to claim 1, characterized in that: The upper surface of the frame (1) and the cover (2) are provided with corresponding fixing holes, and the fixing holes on the cover (2) penetrate through its upper and lower sides. The frame (1) and the cover (2) can be fixedly connected by bolts to the fixing holes.

3. The housing structure for convenient battery pack stacking installation according to claim 1, characterized in that: The battery pack (6) is fixedly connected to an extended connecting frame on its outer side, which is used to connect with the inner bottom surface of the frame (1).

4. The housing structure for convenient battery pack stacking installation according to claim 1, characterized in that: The compression-type support mechanism includes pressure blocks (17) corresponding to the push plate (7). The pressure blocks (17) are movably disposed at the opening at the upper end of the mounting groove (15), and limit grooves (16) are provided on both sides of the opening at the upper end of the mounting groove (15). The upper and lower sides of the pressure blocks (17) are provided with protrusions, and the protrusions are slidably connected to the limit grooves (16) on both sides of the upper end of the mounting groove (15). Each mounting groove (15) is provided with two pressure plates (5), and the two pressure plates (5) are arranged in opposite directions. The lower pressure plate (5) is movably extended. Below the frame (1), a driven plate (14) is movably disposed in the mounting groove (15), and a set of cross grooves (18) are evenly disposed in the driven plate (14). A limiting shaft (19) is movably passed through each cross groove (18), and both ends of the limiting shaft (19) are fixedly connected to the mounting groove (15). A limiting plate (20) coaxial with the limiting shaft (19) is fixedly connected to the portion of the limiting shaft (19) located in the cross groove (18), and a spring that is movably nested on the outside of the limiting shaft (19) is disposed between the limiting plate (20) and the inner side of the cross groove (18). 21), U-shaped grooves (28) are evenly distributed on the opposite ends of the two bearing plates (5), and a corresponding support rod (27) is movably inserted through each U-shaped groove (28). Support grooves (26) corresponding to the support rods (27) are provided on both the upper and lower sides of the driven plate (14), and one end of the corresponding support rod (27) is movably inserted into the support groove (26). The other end of the support rod (27) is fixedly connected to the tail end of a corresponding follower rod (13), and the head end of the follower rod (13) movably extends through the mounting groove (15) into the frame (1). Inside, the first ends of the follower rods (13) on the same side and at the same height are connected by a positioning plate (12). The positioning plate (12) is provided with a connecting groove (23) on the side facing away from the follower plate (14) in the vertical direction. One end of the corresponding connecting block (24) is movably inserted into the connecting groove (23), and the other end of the connecting block (24) is fixedly connected to the corresponding top pressure strip (22). A second spring (25) is movably provided on the outside of each connecting block (24), and the second spring (25) is located between the top pressure strip (22) and the corresponding positioning plate (12).

5. The housing structure for convenient battery pack stacking installation according to claim 4, characterized in that: The cross-section of the pressure block (17) is a right trapezoid, and the inclined surface of the pressure block (17) is set towards the pressure plate (5).

6. The housing structure for convenient battery pack stacking installation according to claim 5, characterized in that: The opposite ends of the two bearing plates (5) are right-angled triangular prisms, and the driven plate (14) is an isosceles trapezoidal structure, with the inclined surfaces of the two right-angled triangular prisms corresponding to the inclined surfaces of the driven plate (14).

7. The housing structure for convenient battery pack stacking installation according to claim 6, characterized in that: The tail end of the follower rod (13) is provided with a spherical structure, and the axis of the support rod (27) passes through the center of the spherical structure. The diameter of the spherical structure is larger than the inner diameter of the U-shaped groove (28).

8. The housing structure for convenient battery pack stacking installation according to claim 7, characterized in that: The two sets of follower rods (13) on the same side are arranged in a figure-eight shape.

9. A housing structure for convenient battery pack stacking installation according to claim 8, characterized in that: The positioning plate (12) and the top pressure strip (22) are of the same length, and both of their lengths are less than the inner length of the outer connecting frame on the battery pack (6).

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