Lithium battery box body for new energy automobile

Abstract

The invention relates to the field of lithium battery boxes, and discloses a lithium battery box body for a new energy automobile, the lithium battery box body comprises a mounting frame and a battery box main body, a protective frame is mounted on the mounting frame, a box shell is arranged on the protective frame, the battery box main body is mounted in the middle of the upper surface of the mounting frame, and a battery is mounted in the battery box main body. Buffer structures are arranged on the four inner side walls of the box shell, a box cover is installed at the top end of the protection frame through an installation structure, when the box shell is collided to drive the box cover to move, an easily-broken rod can be broken, the box cover can be directly popped out of the top end of the box shell in cooperation with a spring structure, and the situation that a battery is damaged by the deformed box cover is avoided; according to the battery box, the lithium battery of the new energy automobile is better protected, the use safety is higher, and by utilizing the protection structure, when the battery box is normally used, through the protection effect of the protection pipe on the protection structure on the easily-broken rod, the problem that the easily-broken rod is broken in the normal use process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery boxes, and in particular to a lithium battery box for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels and new vehicle-mounted power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures. The installation of lithium batteries in new energy vehicles requires the use of battery boxes to protect lithium batteries.

[0003] The lithium battery box in the prior art can be lifted and lowered by opening the protective top cover, pulling the connecting rod on the top of the supporting bottom plate, and moving the supporting bottom plate on the slide bar, so as to take out the lithium battery body for maintenance, which is not only convenient for the staff to operate, but also can greatly reduce the burden on the staff, and is worthy of promotion and use;

[0004] However, the top cover of the box is generally mounted on the box by a hinge. When the box is impacted and the top cover is deformed, the deformed top cover is easily squeezed onto the battery in the box, causing damage to the battery and prone to safety problems caused by leakage. Therefore, there is room for improvement. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a lithium battery box for new energy vehicles.

[0006] The present invention provides a lithium battery box for new energy vehicles using the following technical solutions:

[0007] A lithium battery box for new energy vehicles, comprising a mounting frame and a battery box body, wherein a protective frame is mounted on the mounting frame, a box shell is arranged on the protective frame, a battery box body is mounted on the middle of the upper part of the mounting frame, a battery is mounted in the battery box body, a buffer structure is arranged on the four inner side walls of the box shell, and a box cover is mounted on the top of the protective frame through the mounting structure;

[0008] The mounting structure includes mounting grooves opened at the four corners of the protective frame, a pop-up structure is arranged in the mounting groove, a support seat is installed in the middle of the lower groove wall of the mounting groove, an easily breakable rod is connected to the top of the support seat, the easily breakable rod is a wooden rod, a mounting column is installed on the top of the easily breakable rod, the mounting column and the support seat are both made of metal materials, a protective structure is arranged between the mounting column and the support seat, bolts are passed through the four corners on the box cover, and the bottom ends of the bolts are tightened in the mounting columns.

[0009] Preferably, the pop-up structure includes a pop-up sleeve arranged in the mounting groove, the side surface of the pop-up sleeve is pressed against the inner wall of the mounting groove, a first spring is connected between the pop-up sleeve and the bottom groove wall of the mounting groove, the first spring is located on the peripheral side of the mounting column and the support seat, and a clamping column is fixedly installed at the four corners under the box cover, the bottom end of the clamping column is pressed against the upper part of the pop-up sleeve, the outer diameter of the clamping column is 0.8 times the outer diameter of the pop-up sleeve, and the bolt movably passes through the clamping column.

[0010] Preferably, the protective structure includes a protective tube movably mounted between the mounting column and the support seat, the outer diameters of the mounting column and the support seat are the same as the inner diameter of the protective tube, a sleeve fixed at the bottom end of the protective tube is provided with a bottom sleeve, a sleeve fixed at a position near the top of the protective tube is provided with a top sleeve, a magnetic ring is installed on the top of the top sleeve, a sleeve fixed in the middle of the mounting column is provided with a fixed sleeve, an iron ring is installed below the fixed sleeve, the magnetic ring is adsorbed on the iron ring, a second spring is mounted on the support seat, two ends of the second spring are respectively connected to the bottom sleeve and the lower groove wall of the mounting groove, and a driving structure is provided near the middle of the inner wall of the protective frame.

[0011] Preferably, the buffer structure includes four protective plates respectively attached to the inner walls of the four sides of the box shell, each of the protective plates is equipped with multiple groups of U-shaped rods on a side surface away from the box shell, each of the U-shaped rods is rotatably sleeved with a curved plate, and each of the curved plates is rotatably connected to a buffer plate on one end away from the U-shaped rod, the protective frame is provided with a first through groove for the buffer plate to movably pass through, and a vertical plate is connected to the end of the buffer plate that passes through the protective frame, and fixed seats are respectively installed on the installation frame at positions close to each vertical plate, and multiple buffer rods are connected to a lower position of a side surface of each vertical plate close to the fixed seat, each of the buffer rods is in a "T" shape, and each of the buffer rods movably passes through the corresponding fixed seat, and each of the buffer rods is sleeved with a third spring, and the two ends of the third spring are respectively connected to the fixed seat and one end of the buffer rod, and a guide structure is arranged between the protective plate and the installation frame.

[0012] Preferably, the guide structure includes two guide plates connected to each protective plate near the middle, a T-shaped plate is welded on the mounting frame near each protective plate, the guide plate movably passes through the corresponding T-shaped plate, a stopper is installed on the guide plate near the T-shaped plate, and a second through groove is opened on the T-shaped plate for the guide plate to movably pass through.

[0013] Preferably, the driving structure includes grooves opened in the middle of the four inner wall corners of the protective frame, and a driving frame is arranged in the four grooves. The driving frame is provided with a through groove for the T-shaped plate to movably pass through. The four corners on the driving frame are connected to connecting plates, and one end of the connecting plate that is movably inserted into the installation groove is connected to the bottom sleeve, and an extrusion structure is arranged between the driving frame and the guide plate.

[0014] Preferably, the extrusion structure comprises a pressure block arranged on the driving frame near the position of the lower guide plate, and a side of the pressure block near the guide plate is an inclined surface.

[0015] In summary, the present invention includes the following beneficial technical effects:

[0016] 1. The present invention is provided with a mounting structure, a pop-up structure and a protective structure. The breakable rod on the mounting structure is used to break the breakable rod when the box shell is hit and the box cover moves. With the spring structure, the box cover can be directly popped out from the top of the box shell to avoid damage to the battery caused by the deformed box cover, better protect the lithium battery of new energy vehicles, and have higher safety in use. In addition, the protective structure is used to protect the breakable rod through the protective tube on the protective structure when the battery box is in normal use, so as to avoid the problem of the breakable rod breaking during normal use.

[0017] 2. The present invention is provided with a buffer structure and a guide structure. When the box shell is impacted by a collision, the force generated during the impact can be transferred to the mounting frame, thereby better protecting the lithium battery in the battery box;

[0018] 3. The present invention is provided with a driving structure and an extrusion structure. When the box shell is hit, the extrusion structure drives the driving structure to move downward, thereby pulling the protective tube to move on the support seat to expose the breakable rod. In this way, the movement of the box cover will break the breakable rod, so that the box cover will pop out in time to protect the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a lithium battery box for new energy vehicles in an embodiment of the present invention;

[0020] Figure 2 In the embodiment of the present invention Figure 1 A magnified view of the structure at A;

[0021] Figure 3 is a schematic diagram of the structure after the box cover is disassembled in an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the box cover in an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the structure after the box cover and the battery box are disassembled in an embodiment of the present invention;

[0024] Figure 6 In the embodiment of the present invention Figure 5 A magnified view of the structure at B;

[0025] Figure 7 is a schematic diagram of the structure in the installation slot in an embodiment of the present invention;

[0026] Figure 8 In the embodiment of the present invention Figure 7 A magnified view of the structure at C;

[0027] Fig. 9 It is a schematic diagram of the structure of the support base and the mounting column in an embodiment of the present invention.

[0028] Explanation of the accompanying drawings: 1. Installation frame; 2. Protection frame; 3. Box shell; 4. Box cover; 5. Battery box body; 6. Installation groove; 7. Bolt; 8. Installation column; 9. Support seat; 10. Breakable rod; 11. Pop-up sleeve; 12. First spring; 13. Tightening column; 14. Bottom sleeve; 15. Protection tube; 16. Second spring; 17. Top sleeve; 18. Magnetic ring; 19. Fixed sleeve; 20. Iron ring; 21. Buffer plate; 22. Curved plate; 23. U-shaped rod; 24. Protection plate; 25. First through-groove; 26. Vertical plate; 27. Fixed seat; 28. Buffer rod; 29. ​​Third spring; 30. T-shaped plate; 31. Guide plate; 32. Second through-groove; 33. Groove; 34. Connecting plate; 35. Driving frame; 36. Pressure block. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 9 The present invention is described in further detail.

[0030] The embodiment of the present invention discloses a lithium battery box for new energy vehicles, comprising a mounting frame 1 and a battery box body 5, wherein a protective frame 2 is mounted on the mounting frame 1, a box shell 3 is arranged on the protective frame 2, a battery box body 5 is mounted on the middle of the upper part of the mounting frame 1, a battery is mounted in the battery box body 5, a buffer structure is arranged on the four inner side walls of the box shell 3, and a box cover 4 is mounted on the top of the protective frame 2 through the mounting structure;

[0031] The mounting structure includes mounting grooves 6 provided at four corners of the protective frame 2, a pop-up structure is provided in the mounting groove 6, a support seat 9 is installed at the middle of the lower groove wall of the mounting groove 6, a breakable rod 10 is connected to the top of the support seat 9, the breakable rod 10 is a wooden rod, a mounting column 8 is installed on the top of the breakable rod 10, the mounting column 8 and the support seat 9 are both made of metal materials, a protective structure is provided between the mounting column 8 and the support seat 9, and bolts 7 are passed through the four corners of the box cover 4, and the bottom end of the bolt 7 is tightened in the mounting column 8;

[0032] The pop-up structure includes a pop-up sleeve 11 arranged in the mounting groove 6, the side of the pop-up sleeve 11 is tightly attached to the inner wall of the mounting groove 6, a first spring 12 is connected between the pop-up sleeve 11 and the bottom end groove wall of the mounting groove 6, the first spring 12 is located on the surrounding side of the mounting column 8 and the support seat 9, and the four corners below the box cover 4 are fixedly installed with a tightening column 13, the bottom end of the tightening column 13 is tightly attached to the top of the pop-up sleeve 11, the outer diameter of the tightening column 13 is 0.8 times the outer diameter of the pop-up sleeve 11, the bolt 7 moves through the tightening column 13, when the box shell 3 When the box cover 4 is deformed by impact, it will drive the box cover 4 to move, thereby driving the abutting column 13 to move on the pop-up sleeve 11, and the force on the box cover 4 is transmitted to the breakable rod 10 through the bolt 7 to break the breakable rod 10, thereby releasing the connection between the box cover 4 and the protective frame 2, and after breaking, the box cover 4 can be automatically popped out from the protective frame 2 by the elastic force of the first spring 12, thereby avoiding the deformation of the box cover 4 caused by the force, causing damage to the batteries in the battery box body 5, thereby better protecting the lithium battery;

[0033] The protective structure includes a protective tube 15 movably sleeved between the mounting column 8 and the support seat 9. The outer diameters of the mounting column 8 and the support seat 9 are the same as the inner diameter of the protective tube 15. A bottom sleeve 14 is fixed at the bottom end of the protective tube 15. A top sleeve 17 is fixed at a position near the top of the protective tube 15. A magnetic ring 18 is installed on the top of the top sleeve 17. A fixed sleeve 19 is fixed in the middle of the mounting column 8. An iron ring 20 is installed below the fixed sleeve 19. The magnetic ring 18 is adsorbed on the iron ring 20. A second spring 16 is sleeved on the support seat 9. The two ends of the second spring 16 are respectively connected to the bottom sleeve 14 and the lower groove wall of the mounting groove 6. A driving structure is provided near the middle of the inner wall of the protective frame 2. The protective tube 15 is respectively sleeved on the support seat 9 and the mounting column 8. When the box shell 3 is not hit, the protective tube 15 is used to protect the easily broken rod 10, so as to avoid the easy-to-break rod 10 from breaking under normal circumstances, thereby increasing unnecessary maintenance costs.

[0034] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6The buffer structure includes four protective plates 24 respectively attached to the inner walls of the four sides of the box shell 3, and each protective plate 24 is installed with multiple groups of U-shaped rods 23 on the side away from the box shell 3. A curved plate 22 is rotatably sleeved on each U-shaped rod 23, and a buffer plate 21 is rotatably connected to the end of each curved plate 22 away from the U-shaped rod 23. A first through groove 25 for the buffer plate 21 to movably pass through is opened on the protective frame 2, and a vertical plate 26 is connected to the end of the buffer plate 21 passing through the protective frame 2. A fixing seat 27 is respectively installed on the installation frame 1 near each vertical plate 26, and a plurality of buffer rods 28 are connected to the lower position of one side of each vertical plate 26 near the fixing seat 27, and each buffer rod 28 is in a "T" shape. Each buffer rod 28 is movable through the corresponding fixing seat 27, and each buffer rod 28 is sleeved with a third spring 29, and the two ends of the third spring 29 are respectively connected to the fixing seat 27 and one end of the buffer rod 28. A guide structure is provided between the protective plate 24 and the mounting frame 1. When the box shell 3 is hit, the box shell 3 is deformed to push the protective plate 24 to move, and the buffer plate 21 is pushed to move outward of the box shell 3 through the curved plate 22 to drive the buffer rod 28 to move on the fixing seat 27, and the third spring 29 is stretched. In this way, the elastic force of the third spring 29 can be used to buffer the impact on the box shell 3, and the force generated by the impact is transferred to the mounting frame 1, so as to protect the lithium battery;

[0035] The guide structure includes two guide plates 31 connected to each protective plate 24 near the middle, and a T-shaped plate 30 is welded on the mounting frame 1 near each protective plate 24. The guide plate 31 movably passes through the corresponding T-shaped plate 30, and a stopper is installed on the guide plate 31 near the T-shaped plate 30. The T-shaped plate 30 is provided with a second through groove 32 for the guide plate 31 to movably pass through. The deformation of the box shell 3 drives the movement of the protective plate 24, which will drive the guide plate 31 to move on the T-shaped plate 30. The movement of the guide plate 31 on the T-shaped plate 30 can guide the movement of the protective plate 24, thereby ensuring the movement of the protective plate 24, and can smoothly push the buffer plate 21 to move to perform buffering work, and a stopper is arranged on the guide plate 31, which can limit the movement of the guide plate 31 to prevent one end of the guide plate 31 from directly poking into the battery box body 5 and damaging the lithium battery.

[0036] See also Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9The driving structure includes grooves 33 provided in the middle of the four inner wall corners of the protection frame 2, and driving frames 35 are provided in the four grooves 33. The driving frame 35 is provided with a through groove for the T-shaped plate 30 to movably pass through. The four corners on the driving frame 35 are connected with connecting plates 34. One end of the connecting plate 34 movably inserted into the mounting groove 6 is connected to the bottom sleeve 14. An extrusion structure is provided between the driving frame 35 and the guide plate 31;

[0037] The extrusion structure includes a pressure block 36 arranged on the driving frame 35 near the position of the guide plate 31 below. The side of the pressure block 36 near the guide plate 31 is an inclined surface. The protective plate 24 is used to drive the movement of the guide plate 31, and the corresponding guide plate 31 is squeezed to the inclined surface on the pressure block 36, thereby pushing the driving frame 35 to move downward in the groove 33, and pulling the bottom sleeve 14 and the protective tube 15 downward as a whole through the connecting plate 34, so that when the box shell 3 is hit, the breakable rod 10 can be automatically exposed, so that the breakable rod 10 can be broken in time to pop out the box cover 4 to protect the lithium battery.

[0038] The implementation principle of a lithium battery box for new energy vehicles in an embodiment of the present invention is as follows: when the box shell 3 is deformed by external impact, the deformed box shell 3 pushes the protective plate 24 to drive the middle guide plate 31 to move on the T-shaped plate 30. The movement of the guide plate 31 can guide the protective plate 24, so that the movement of the protective plate 24 can smoothly push the buffer plate 21 to move on the protective frame 2 through the curved plate 22, thereby driving the buffer rod 28 on the vertical plate 26 to stretch the third spring 29 on the fixed seat 27 to move, and utilize the deformation of the third spring 29 to buffer the impact on the box shell 3, and transfer part of the force on the box shell 3 to the installation frame 1, so as to cushion the battery box body 5. The lithium batteries inside play a role of buffer protection. The movement of the notification protection plate 24 will drive the guide plate 31 below to be squeezed onto the inclined surface of the pressure block 36, pushing the driving frame 35 to move downward in the groove 33, and pulling the bottom sleeve 14 and the protection tube 15 as a whole to move through the connecting plate 34 to expose the easily breakable rod 10. In this way, the force exerted on the box cover 4 by the deformation of the box shell 3 will drive the box cover 4 to move on the protection frame 2, thereby breaking the easily breakable rod 10. After the easily breakable rod 10 is broken, the box cover 4 can be automatically popped out from the protection frame 2 by the elastic force of the first spring 12, so as to avoid the box cover 4 being deformed by force and damaging the lithium battery in the battery box body 5, so as to better protect the lithium battery.

[0039] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium battery box for a new energy vehicle, comprising a mounting frame (1) and a battery box body (5), characterized in that: A protective frame (2) is installed on the installation frame (1), a box shell (3) is arranged on the protective frame (2), a battery box body (5) is installed in the middle of the upper part of the installation frame (1), batteries are installed in the battery box body (5), buffer structures are arranged on the four inner side walls of the box shell (3), and a box cover (4) is installed on the top of the protective frame (2) through the installation structure; The mounting structure comprises mounting grooves (6) provided at four corners of the protective frame (2), a pop-up structure being arranged in the mounting groove (6), a support seat (9) being arranged at the middle of the lower groove wall of the mounting groove (6), a breakable rod (10) being connected to the top of the support seat (9), the breakable rod (10) being a wooden rod, a mounting column (8) being arranged at the top of the breakable rod (10), the mounting column (8) and the support seat (9) being both made of metal materials, a protective structure being arranged between the mounting column (8) and the support seat (9), bolts (7) passing through the four corners of the box cover (4), the bottom ends of the bolts (7) being tightened in the mounting column (8).

2. A lithium battery box for new energy vehicles according to claim 1, characterized in that: The pop-up structure comprises a pop-up sleeve (11) arranged in the mounting groove (6), the side surface of the pop-up sleeve (11) is tightly attached to the inner wall of the mounting groove (6), a first spring (12) is connected between the pop-up sleeve (11) and the bottom groove wall of the mounting groove (6), the first spring (12) is located on the peripheral side of the mounting column (8) and the support seat (9), and abutment columns (13) are fixedly installed at the four corners below the box cover (4), the bottom end of the abutment column (13) is tightly attached to the top of the pop-up sleeve (11), the outer diameter of the abutment column (13) is 0.8 times the outer diameter of the pop-up sleeve (11), and the bolt (7) movably passes through the abutment column (13).

3. A lithium battery box for new energy vehicles according to claim 1, characterized in that: The protective structure comprises a protective tube (15) movably sleeved between the mounting column (8) and the support seat (9); the outer diameters of the mounting column (8) and the support seat (9) are the same as the inner diameter of the protective tube (15); a sleeve fixed at the bottom end of the protective tube (15) is provided with a bottom sleeve (14); a sleeve fixed at a position close to the top end of the protective tube (15) is provided with a top sleeve (17); a magnetic ring (18) is installed on the top of the top sleeve (17); a sleeve fixed at the middle of the mounting column (8) is provided with a fixed sleeve (19); an iron ring (20) is installed on the bottom of the fixed sleeve (19); the magnetic ring (18) is adsorbed on the iron ring (20); a second spring (16) is sleeved on the support seat (9); two ends of the second spring (16) are respectively connected to the bottom sleeve (14) and the lower groove wall of the mounting groove (6); and a driving structure is provided near the middle of the inner wall of the protective frame (2).

4. A lithium battery box for new energy vehicles according to claim 1, characterized in that: The buffer structure comprises four protective plates (24) respectively attached to the inner walls of the four sides of the box shell (3); a plurality of groups of U-shaped rods (23) are installed on the side of each protective plate (24) away from the box shell (3); a curved plate (22) is rotatably sleeved on each of the U-shaped rods (23); a buffer plate (21) is rotatably connected to one end of each curved plate (22) away from the U-shaped rod (23); a first through slot (25) for the buffer plate (21) to movably pass through is provided on the protective frame (2); a vertical plate (26) is connected to one end of the buffer plate (21) passing through the protective frame (2); and the installation frame (1) is provided with a plurality of protective plates (24) on the side of each protective plate (24) away from the box shell (3); ) are respectively installed with a fixing seat (27) at a position close to each vertical plate (26); a plurality of buffer rods (28) are connected to a position below a side surface of each vertical plate (26) close to the fixing seat (27); each buffer rod (28) is in a "T" shape; each buffer rod (28) movably passes through a corresponding fixing seat (27); each buffer rod (28) is sleeved with a third spring (29); two ends of the third spring (29) are respectively connected to the fixing seat (27) and one end of the buffer rod (28); and a guide structure is provided between the protective plate (24) and the mounting frame (1).

5. A lithium battery box for new energy vehicles according to claim 4, characterized in that: The guide structure comprises two guide plates (31) connected to each protective plate (24) near the middle, a T-shaped plate (30) is welded on the installation frame (1) near each protective plate (24), the guide plate (31) movably passes through the corresponding T-shaped plate (30), a stopper is installed on the guide plate (31) near the T-shaped plate (30), and a second through groove (32) for the guide plate (31) to movably pass through is opened on the T-shaped plate (30).

6. A lithium battery box for new energy vehicles according to claim 3, characterized in that: The driving structure comprises grooves (33) formed in the middle of four inner wall corners of the protection frame (2), a driving frame (35) is arranged in the four grooves (33), a through groove for the T-shaped plate (30) to movably pass through is formed on the driving frame (35), and connecting plates (34) are connected to the four corners on the driving frame (35), one end of the connecting plate (34) movably inserted into the installation groove (6) is connected to the bottom sleeve (14), and an extrusion structure is arranged between the driving frame (35) and the guide plate (31).

7. A lithium battery box for new energy vehicles according to claim 6, characterized in that: The extrusion structure comprises a pressure block (36) arranged on the driving frame (35) near the position of the lower guide plate (31), and the side of the pressure block (36) near the guide plate (31) is an inclined surface.

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