Lithium battery energy storage device

Abstract

A lithium battery energy storage device comprises an energy storage box body, an energy storage base is arranged in the energy storage box body, an energy storage groove is formed in the upper end face of the energy storage base, a battery module is arranged in the energy storage groove, a plurality of fixing screw sleeves are arranged at the bottom of the energy storage base, and positioning screw holes in one-to-one correspondence with the fixing screw sleeves are formed in the bottom of the energy storage box body. A plurality of damping springs are arranged between the energy storage base and the energy storage box body, first screw plugs and second screw plugs are arranged at the upper ends and the lower ends of the damping springs correspondingly, and the first screw plugs and the second screw plugs are in threaded connection with the fixing screw sleeves and the positioning screw holes correspondingly; a box cover is installed on the top of the energy storage box body, a limiting pressing pad is arranged below the box cover, and a plurality of first damping assemblies are distributed between the box cover and the limiting pressing pad according to a rectangular array. The use safety of the lithium battery is improved, and the battery module is prevented from being damaged due to strenuous vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and particularly relates to a lithium battery energy storage device. Background Art

[0002] During the charging and discharging processes of existing lithium battery energy storage devices, heat is generated. If the heat cannot be dissipated from the inside of the lithium battery energy storage device in time, it may cause the internal battery modules to expand and affect safe use. In addition, when traditional lithium batteries are used in vehicles, the lithium batteries sometimes vibrate violently following the vehicle, resulting in damage to the lithium batteries, thereby affecting the service life of the lithium batteries and increasing the maintenance cost. Summary of the Invention

[0003] The purpose of the present invention is to provide a lithium battery energy storage device, which can effectively solve the technical problems mentioned in the background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A lithium battery energy storage device includes an energy storage box body. An energy storage base is arranged inside the energy storage box body. An energy storage groove is formed on the upper end surface of the energy storage base. A battery module is arranged in the energy storage groove. A plurality of fixed screw sleeves are arranged at the bottom of the energy storage base. Positioning screw holes corresponding to the fixed screw sleeves one by one are arranged at the bottom of the energy storage box body. A plurality of shock-absorbing springs are arranged between the energy storage base and the energy storage box body. The upper and lower ends of the shock-absorbing springs are respectively provided with a first screw plug and a second screw plug. The first screw plug and the second screw plug are respectively threadedly connected to the fixed screw sleeve and the positioning screw hole. A box cover is installed on the top of the energy storage box body. A limiting pressure pad is arranged below the box cover. A plurality of first shock-absorbing components are distributed in a rectangular array between the box cover and the limiting pressure pad. A second shock-absorbing component is arranged in the middle of all the first shock-absorbing components. The second shock-absorbing component includes a second shock-absorbing spring, a guide sleeve, a guide post and a fixed disk. The guide sleeve is connected to the limiting pressure pad. The lower end of the guide post extends into the guide sleeve, and the upper end extends into a guide through hole formed in the box cover. The upper and lower ends of the second shock-absorbing spring are respectively connected to the fixed disk and the guide post. The fixed disk is connected to the box cover through an adjusting screw. A plurality of first ventilation holes are formed in the limiting pressure pad. A second ventilation hole group is arranged on the box cover directly above the first ventilation holes. The second ventilation hole group is formed by a plurality of second ventilation holes with a radial dimension smaller than that of the first ventilation holes uniformly distributed on the box cover.

[0005] Preferably, first fixing blocks are respectively arranged at both ends of the energy storage base. A first sliding groove is formed on one end face of the first fixing block, a second sliding groove is formed on the top, and an adjusting nut sleeve fixed to the energy storage base is arranged above. A second fixing block is arranged in the first sliding groove. An installation groove is formed in the second fixing block, and a sliding block is connected to the top. The upper end of the sliding block passes through the second sliding groove. The adjusting nut sleeve is threadedly connected to an adjusting screw rod. A rotating boss is arranged on the adjusting screw rod and one end abuts against the sliding block. A shock-absorbing cushion block made of rubber material is arranged in the installation groove, and one end of the shock-absorbing cushion block abuts against the inner wall of the energy storage box body.

[0006] Preferably, a limiting groove is vertically formed on the guiding upright post. A limiting stop block is arranged at the bottom of the box cover. One end of the limiting stop block extends into the limiting groove. When the upper end face of the guiding upright post is coplanar with the top of the box cover, the upper end face of the limiting stop block fits against the top of the limiting groove.

[0007] Preferably, the first shock-absorbing assembly includes a first shock-absorbing spring, a first nut sleeve and a second nut sleeve. The first nut sleeve and the second nut sleeve are respectively connected to the box cover and the limiting pressing pad. The upper and lower ends of the first shock-absorbing spring are respectively connected with a third screw plug and a fourth screw plug. The third screw plug and the fourth screw plug are respectively threadedly connected to the first nut sleeve and the second nut sleeve.

[0008] Preferably, the limiting pressing pad is made of rubber material, and the adjusting stud bolts are distributed in a circular array on the fixed disk.

[0009] Preferably, a plurality of first installation grooves with a rectangular cross-sectional structure are formed on the inner wall of the energy storage box body, and the shock-absorbing strips are installed in the first installation grooves.

[0010] Preferably, a support frame body is arranged at the bottom of the energy storage box body. The inside of the support frame body is an installation cavity. The lower end of the second screw plug extends into the installation cavity. The position of the second screw plug in the positioning screw hole is adjusted to adjust the length of the first shock-absorbing spring between the energy storage base and the energy storage box body.

[0011] Preferably, a first bottom plate is arranged at the bottom of the support frame body. A second bottom plate is arranged below the first bottom plate. A heat dissipation fan is installed on the second bottom plate. An air inlet and an air outlet are formed in the bottom of the energy storage box body. The airflow generated by the heat dissipation fan is connected to the air inlet through a ventilation duct, and ventilation grooves are distributed on the second bottom plate.

[0012] Preferably, the air inlet is arranged at the middle position of the energy storage box body, and the ventilation grooves are symmetrically distributed on both sides of the heat dissipation fan.

[0013] Preferably, the first bottom plate and the second bottom plate are detachably connected by bolts, and the box cover is rotatably mounted on the energy storage box body.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When the present invention undergoes severe vibration, the battery module will vibrate up and down with the energy storage base. At the same time, the shock-absorbing spring and the first shock-absorbing spring will respectively undergo telescopic movement under the action of the energy storage base and the battery module to prevent the battery module from directly colliding violently with the energy storage box body and being damaged. Moreover, when the battery module drives the limit pressing pad to move and causes the first shock-absorbing spring to contract until the guiding column slides to the bottom of the guiding sleeve, the guiding sleeve begins to push the guiding column upward and continues to compress the second shock-absorbing spring, thereby further improving the shock-absorbing ability. During the reciprocating vibration process, when the first shock-absorbing spring begins to elongate and the limit pressing pad moves downward, the second shock-absorbing spring elongates and pushes the guiding column downward until the upper end surface of the limit block fits against the top of the limit groove, and then the guiding column stops moving downward. By adjusting the adjusting stud, the distance between the fixed plate and the box cover is changed, so as to adjust the shock-absorbing ability by adjusting the compression amount of the second shock-absorbing spring. By rotating the rotating boss, the adjusting screw rod rotates in the adjusting nut sleeve. At this time, the adjusting screw rod pushes the sliding block to slide along the second chute, and at the same time, the shock-proof cushion block moves along the first chute on the first fixed block with the second fixed block until one end of the shock-proof cushion block abuts against the inner wall of the energy storage box body, thereby preventing the battery module from colliding with the inner side wall of the energy storage box body. After the cooling fan is started, the outside air flows into the interior of the energy storage box body through the ventilation duct, and then is discharged through the air outlet holes at the bottom of the energy storage box body and the second ventilation hole group on the box cover. The second ventilation hole group on the box cover is arranged directly above the first ventilation hole to facilitate the discharge of air. The second ventilation hole group is formed by a plurality of second ventilation holes with smaller radial dimensions to prevent large-particle foreign impurities from entering the energy storage box body. Description of the Drawings

[0015] Figure 1 is a first perspective view of a lithium battery energy storage device in an embodiment of the present invention; Figure 2 is a second perspective view of a lithium battery energy storage device in an embodiment of the present invention; Figure 3 is a structural diagram of the energy storage base in an embodiment of the present invention; Figure 4 is Figure 3 a partial enlarged view of A in Figure 5 is an installation diagram of the shock-proof cushion block in an embodiment of the present invention; Figure 6 is a structural diagram of the shock-absorbing spring in an embodiment of the present invention; Figure 7 It is a first perspective schematic diagram of the second shock absorption component in the embodiment of the present invention; Figure 8 It is a second perspective schematic diagram of the second shock absorption component in the embodiment of the present invention; Figure 9 It is a first perspective schematic diagram of the energy storage box body in the embodiment of the present invention; Figure 10 It is a first perspective schematic diagram of the energy storage box body in the embodiment of the present invention; Figure 11 It is a structural schematic diagram of the second bottom plate in the embodiment of the present invention; In the figure, 1. Energy storage box body, 2. Energy storage base, 3. Battery module, 4. Fixed screw sleeve, 5. Positioning screw hole, 6. Shock absorption spring, 7. First plug, 8. Second plug, 9. Box cover, 10. Limit pressing pad, 11. Second shock absorption spring, 12. Guide sleeve, 13. Guide column, 14. Fixed disk, 15. Adjusting stud, 16. First ventilation hole, 17. Second ventilation hole group, 18. First fixing block, 19. First sliding groove, 20. Second sliding groove, 21. Adjusting screw sleeve, 22. Second fixing block, 23. Sliding block, 24. Adjusting screw rod, 25. Rotating boss, 26. Anti-vibration cushion block, 27. Limit groove, 28. Limit stop block, 29. First shock absorption spring, 30. First screw sleeve, 31. Second screw sleeve, 32. Shock absorption strip, 33. Support frame body, 34. First bottom plate, 35. Second bottom plate, 36. Heat dissipation fan, 37. Air inlet, 38. Air outlet hole, 39. Ventilation groove. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 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.

[0017] Please refer to Figures 1-11 As shown, a lithium battery energy storage device includes an energy storage box body 1. An energy storage base 2 is arranged inside the energy storage box body 1. An energy storage groove is formed on the upper end surface of the energy storage base 2. A battery module 3 is arranged in the energy storage groove. A plurality of fixed screw sleeves 4 are arranged at the bottom of the energy storage base 2. Positioning screw holes 5 corresponding to the fixed screw sleeves 4 one by one are arranged at the bottom of the energy storage box body 1. A plurality of shock absorption springs 6 are arranged between the energy storage base 2 and the energy storage box body 1. The upper and lower ends of the shock absorption spring 6 are respectively provided with a first plug 7 and a second plug 8. The first plug 7 and the second plug 8 are respectively threadedly connected to the fixed screw sleeve 4 and the positioning screw hole 5; By adjusting the position of the second plug 8 in the positioning screw hole 5, the distance between the energy storage base 2 of the shock-absorbing spring 6 and the energy storage box body 1 is further adjusted; A box cover 9 is installed on the top of the energy storage box body 1. A limiting pressure pad 10 is arranged below the box cover 9. A plurality of first shock-absorbing components are distributed in a rectangular array between the box cover 9 and the limiting pressure pad 10. A second shock-absorbing component is arranged in the middle of all the first shock-absorbing components. The second shock-absorbing component includes a second shock-absorbing spring 11, a guide sleeve 12, a guide column 13 and a fixed disk 14. The guide sleeve 12 is connected to the limiting pressure pad 10. The lower end of the guide column 13 extends into the guide sleeve 12, and the upper end extends into a guide through hole opened on the box cover 9. The upper and lower ends of the second shock-absorbing spring 11 are respectively connected to the fixed disk 14 and the guide column 13. The fixed disk 14 is connected to the box cover 9 through an adjusting stud 15. A plurality of first ventilation holes 16 are opened on the limiting pressure pad 10. A second ventilation hole group 17 distributed on the box cover 9 is arranged directly above the first ventilation holes 16. The second ventilation hole group 17 is formed by a plurality of second ventilation holes with a radial dimension smaller than that of the first ventilation holes uniformly distributed on the box cover 9; When the battery module 3 drives the limiting pressure pad 10 to move and the second shock-absorbing component reaches the maximum shock-absorbing degree and the guide column 13 slides to the bottom of the guide sleeve 12, the guide sleeve 12 begins to push the guide column 13 upward and continues to compress the second shock-absorbing spring 11, thereby further improving the shock-absorbing ability; The heat generated during the operation of the battery module is conducive to being dissipated through the first ventilation holes 16 and the second ventilation hole group 17, and at the same time, large-particle sundries are prevented from entering the interior of the energy storage box body 1; First fixing blocks 18 are respectively arranged at both ends of the energy storage base 2. A first sliding groove 19 is opened on one end face of the first fixing block 18, a second sliding groove 20 is opened on the top, and an adjusting screw sleeve 21 fixed on the energy storage base 2 is arranged above. A second fixing block 22 is arranged in the first sliding groove 19. An installation groove is opened on the second fixing block 22, and a sliding block 23 is connected to the top. The upper end of the sliding block 23 passes through the second sliding groove 20. The adjusting screw sleeve 21 is threadedly connected to an adjusting screw rod 24. A rotating boss 25 is arranged on the adjusting screw rod 24 and one end abuts against the sliding block 23. A shock-proof cushion block 26 made of rubber material is arranged in the installation groove. One end of the shock-proof cushion block 26 abuts against the inner wall of the energy storage box body 1; By rotating the rotating boss 25, the adjusting screw rod 24 is rotated to push the sliding block 23 to slide along the second sliding groove 20, and at the same time, the second fixing block 22 slides along the first sliding groove 19 until the shock-proof cushion block 26 abuts against the inner wall of the energy storage box body 1; A limiting groove 27 is vertically formed on the guiding upright post 13, a limiting stop block 28 is arranged at the bottom of the box cover 9, one end of the limiting stop block 28 extends into the limiting groove 27, and when the upper end surface of the guiding upright post 13 is coplanar with the top of the box cover 9, the upper end surface of the limiting stop block 28 is attached to the top of the limiting groove 27; The first shock-absorbing assembly includes a first shock-absorbing spring 29, a first screw sleeve 30 and a second screw sleeve 31. The first screw sleeve 30 and the second screw sleeve 31 are respectively connected to the box cover 9 and the limiting gasket 10. The upper and lower ends of the first shock-absorbing spring 29 are respectively connected with a third screw plug and a fourth screw plug, and the third screw plug and the fourth screw plug are respectively threadedly connected to the first screw sleeve 30 and the second screw sleeve 31; The limiting gasket 10 is made of rubber material, and the adjusting studs 15 are distributed in a circular array on the fixed disk 14; A plurality of first installation grooves with a rectangular cross-sectional structure are formed on the inner wall of the energy storage box body 1, and the shock-absorbing strips 32 are installed in the first installation grooves; A support frame body 33 is arranged at the bottom of the energy storage box body 1. The interior of the support frame body 33 is an installation cavity. The lower end of the second screw plug 8 extends into the installation cavity, and the position of the second screw plug 8 in the positioning screw hole 5 is adjusted to adjust the length of the first shock-absorbing spring between the energy storage base 2 and the energy storage box body 1.

[0018] A first bottom plate 34 is arranged at the bottom of the support frame body 33, a second bottom plate 35 is arranged below the first bottom plate 34, a heat dissipation fan 36 is installed on the second bottom plate 35. An air inlet 37 and an air outlet hole 38 are formed in the bottom of the energy storage box body 1. The air flow generated by the heat dissipation fan 36 is connected to the air inlet 37 through a ventilation duct, and ventilation slots 39 are distributed on the second bottom plate 35; The air inlet 37 is arranged at the middle position of the energy storage box body 1, and the ventilation slots 38 are symmetrically distributed on both sides of the heat dissipation fan 36.

[0019] The first bottom plate 34 and the second bottom plate 35 are detachably connected by bolts, and the box cover 9 is rotatably installed on the energy storage box body 1.

[0020] When the present invention undergoes severe vibrations, the battery module 3 will vibrate up and down along with the energy storage base 2. At the same time, the shock-absorbing spring 6 and the first shock-absorbing spring 29 will respectively undergo telescopic movements under the action of the energy storage base 2 and the battery module 3 to prevent the battery module 3 from directly colliding violently with the energy storage box body 1 and being damaged. Moreover, when the battery module 3 drives the limit pressing pad 10 to move and causes the first shock-absorbing spring 29 to contract until the guide column 13 slides to the bottom of the guide sleeve 12, the guide sleeve 12 starts to push the guide column 13 upward and continues to compress the second shock-absorbing spring 11, thereby further improving the shock-absorbing ability. During the reciprocating vibration process, when the first shock-absorbing spring 29 starts to elongate and the limit pressing pad 10 moves downward, the second shock-absorbing spring 11 elongates and pushes the guide column 13 downward until the upper end surface of the limit stop block 28 fits against the top of the limit groove 27, and then the guide column 13 stops moving downward. By adjusting the adjusting stud 15, the distance between the fixed plate 14 and the box cover 9 is changed, so as to adjust the shock-absorbing ability by adjusting the compression amount of the second shock-absorbing spring 11. By rotating the rotating boss 25, the adjusting screw rod 24 rotates in the adjusting nut 21. At this time, the adjusting screw rod 24 pushes the sliding block 23 to slide along the second chute 20. At the same time, the shock-proof cushion block 26 moves along the first chute 19 on the first fixing block 18 along with the second fixing block 22 until one end of the shock-proof cushion block 26 abuts against the inner wall of the energy storage box body 1, thereby preventing the battery module 3 from colliding with the inner side wall of the energy storage box body 1. After the heat dissipation fan 36 is started, the outside air flow enters the interior of the energy storage box body 1 through the ventilation duct, and then is discharged from the air outlet holes 38 at the bottom of the energy storage box body 1 and the second ventilation hole group 17 on the box cover 9. The second ventilation hole group 17 on the box cover 9 is arranged directly above the first ventilation hole 16 to facilitate the discharge of the air flow. The second ventilation hole group 17 is formed by a plurality of second ventilation holes with smaller radial dimensions, which can prevent large-particle foreign impurities from entering the energy storage box body 1.

[0021] The above content is only an example and description of the structure of the present invention. Those skilled in the art of the present technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as they do not deviate from the structure of the present invention or exceed the scope defined by this claim book, they should all fall within the protection scope of the present invention.

Claims

1. A lithium battery energy storage device, comprising an energy storage box body, characterized in that: Inside the energy storage box body, there is an energy storage base. An energy storage groove is formed on the upper end surface of the energy storage base. A battery module is arranged in the energy storage groove. Multiple fixing screw sleeves are arranged at the bottom of the energy storage base. Positioning screw holes corresponding to the fixing screw sleeves one by one are arranged at the bottom of the energy storage box body. Multiple shock-absorbing springs are arranged between the energy storage base and the energy storage box body. The upper and lower ends of the shock-absorbing spring are respectively provided with a first screw plug and a second screw plug. The first screw plug and the second screw plug are respectively threadedly connected to the fixing screw sleeve and the positioning screw hole. A box cover is installed on the top of the energy storage box body. A limiting pressure pad is arranged below the box cover. Multiple first shock-absorbing components are distributed in a rectangular array between the box cover and the limiting pressure pad. A second shock-absorbing component is arranged in the middle of all the first shock-absorbing components. The second shock-absorbing component includes a second shock-absorbing spring, a guide sleeve, a guide column and a fixed disk. The guide sleeve is connected to the limiting pressure pad. The lower end of the guide column extends into the guide sleeve, and the upper end extends into a guide through hole formed in the box cover. The upper and lower ends of the second shock-absorbing spring are respectively connected to the fixed disk and the guide column. The fixed disk is connected to the box cover through an adjusting screw rod. Multiple first ventilation holes are formed in the limiting pressure pad. A second ventilation hole group is arranged on the box cover directly above the first ventilation holes. The second ventilation hole group is formed by multiple second ventilation holes with a radial dimension smaller than that of the first ventilation holes evenly distributed on the box cover.

2. The lithium battery energy storage device according to claim 1, characterized in that: First fixing blocks are respectively arranged at both ends of the energy storage base. A first sliding groove is formed on one end surface of the first fixing block, a second sliding groove is formed on the top, and an adjusting screw sleeve fixed to the energy storage base is arranged above. A second fixing block is arranged in the first sliding groove. An installation groove is formed in the second fixing block, and a sliding block is connected to the top. The upper end of the sliding block passes through the second sliding groove. The adjusting screw sleeve is threadedly connected to an adjusting screw rod. A rotating boss is arranged on the adjusting screw rod and one end of the adjusting screw rod abuts against the sliding block. A shock-proof cushion block made of rubber material is arranged in the installation groove. One end of the shock-proof cushion block abuts against the inner wall of the energy storage box body.

3. A lithium battery energy storage device according to claim 1, characterized in that: A limiting groove is formed in the guide column along the vertical direction. A limiting block is arranged at the bottom of the box cover. One end of the limiting block extends into the limiting groove. When the upper end surface of the guide column is coplanar with the top of the box cover, the upper end surface of the limiting block fits against the top of the limiting groove.

4. A lithium battery energy storage device according to claim 1, characterized in that: The first shock-absorbing component includes a first shock-absorbing spring, a first screw sleeve and a second screw sleeve. The first screw sleeve and the second screw sleeve are respectively connected to the box cover and the limiting pressure pad. The upper and lower ends of the first shock-absorbing spring are respectively connected with a third screw plug and a fourth screw plug. The third screw plug and the fourth screw plug are respectively threadedly connected to the first screw sleeve and the second screw sleeve.

5. A lithium battery energy storage device according to claim 1, characterized in that: The limiting pressure pad is made of rubber material. The adjusting screw rods are distributed in a circular array on the fixed disk.

6. A lithium battery energy storage device according to claim 1, characterized in that: Multiple first installation grooves with a rectangular cross-sectional structure are formed on the inner wall of the energy storage box body. The shock-absorbing strips are installed in the first installation grooves.

7. A lithium battery energy storage device according to claim 1, characterized in that: A support frame is provided at the bottom of the energy storage box body. The interior of the support frame is an installation cavity. The lower end of the second plug extends into the installation cavity. Adjust the position of the second plug in the positioning screw hole to adjust the length of the first shock-absorbing spring between the energy storage base and the energy storage box body.

8. A lithium battery energy storage device according to claim 7, characterized in that: A first bottom plate is provided at the bottom of the support frame. A second bottom plate is provided below the first bottom plate. A heat dissipation fan is installed on the second bottom plate. An air inlet and an air outlet are formed in the bottom of the energy storage box body. The airflow generated by the heat dissipation fan is connected to the air inlet through a ventilation duct. Ventilation grooves are distributed on the second bottom plate.

9. A lithium battery energy storage device according to claim 8, characterized in that: The air inlet is provided at the middle position of the energy storage box body. The ventilation grooves are symmetrically distributed on both sides of the heat dissipation fan.

10. A lithium battery energy storage device according to claim 9, characterized in that: The first bottom plate and the second bottom plate are detachably connected by bolts. The box cover is rotatably installed on the energy storage box body.

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