Battery pack protection structure and use method thereof

Abstract

The invention discloses a battery pack protection structure and a use method thereof.The battery pack protection structure comprises a battery pack body, the end of the battery pack body is symmetrically and slidably connected with a plurality of sets of fixing blocks, the middle of each fixing block is rotatably connected with a push rod, the end of the other side of each push rod is rotatably connected with another fixing block, and the other fixing block and a mounting plate are mounted in a threaded mode; a base is attached to the end part of the mounting plate; the base buffers the impact force borne by the gullies and the steps, so that the edges of the surface gullies and the steps directly impact the surface of the battery pack main body, the use safety of the battery pack main body is improved, meanwhile, the traction rope performs mutual traction on the battery pack main body and the base, traction on the base is facilitated, and the use stability of the base is improved; and the base is prevented from being deformed after being impacted by a gully or a step edge, so that the service life of the base is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery packs, and in particular relates to a battery pack protection structure and a use method thereof. Background Art

[0002] The battery pack protection structure refers to the design and construction used to protect the battery pack from external environmental influences and potential dangers. It usually includes multiple levels of protection to ensure the safety and reliability of the battery pack under various conditions. The existing battery packs can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] Most of the existing battery pack protection methods are to increase the thickness of the battery pack shell, select high-strength plates and increase the number of reinforcing ribs to increase the strength of the battery pack. However, when the operator is driving the car, the operator may pass through deep grooves or high steps. When the vehicle passes these locations, the battery pack at the bottom of the vehicle may rub against the edge of the groove or the corner of the step. When the friction is strong, it may scratch the battery pack and cause damage to the battery pack. For this reason, we propose a battery pack protection structure and its use method to solve the above problems. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a battery pack protection structure and a method of using the same. After the base contacts the edges of the grooves and steps, the base pushes the push rod to move, causing the base to move toward the side of the battery pack body. The base buffers the impact received, preventing the edges of the grooves and steps from directly hitting the surface of the battery pack body, thereby improving the safety of the battery pack body.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A battery pack protection structure comprises a battery pack main body, wherein the end portion of the battery pack main body is symmetrically and slidably connected with a plurality of groups of fixed blocks, and the middle portion of the fixed block is rotatably connected with a push rod, and the other end portion of the push rod is rotatably connected with another fixed block, the other fixed block is threadedly mounted on a mounting plate, and a base is fitted at the end of the mounting plate, a second slider is fixed to one side where the mounting plate and the base fit each other, and the surface of the second slider is sleeved with a second slide groove opened on the base, the inside of the second slide groove is respectively provided with a first spring abutting between the inner wall of the second slide groove and the surface of the second slider, a rotating block is fixed to the end portion of either side of the base, and the surface of the rotating block is sleeved with a rotating sleeve opened at the other end portion of the base, and a rotating rod penetrating the rotating block is fixed to the inner wall of the rotating sleeve.

[0006] As a preferred technical solution of the present invention, a plurality of groups of mounting grooves are provided in the middle of the base, and a fixing plate is inserted in the middle of each mounting groove, a traction rope is provided between the fixing plate and the battery pack body, and both ends of the traction rope are respectively fixed to the battery pack body and the fixing plate, connecting plates are symmetrically provided on both ends of the traction rope, and traction blocks are threadedly installed on both ends of the connecting plates, the surfaces of the traction blocks are sleeved with traction grooves provided on the base, and a positioning block is fixed on one side where the connecting plate and the fixing plate are fitted to each other, and the surfaces of the positioning blocks are sleeved with positioning grooves provided on the fixing plate.

[0007] As a preferred technical solution of the present invention, the inner walls of the installation grooves are symmetrically provided with avoidance grooves, and the inner walls of the avoidance grooves are connected to the spring grooves provided in the base, and the spring grooves are respectively provided with sleeve rods and second springs, and the two side ends of the second springs are respectively abutted between the sleeve rod surface and the inner wall of the spring groove, and the ends of the sleeve rods are fixed with abutment blocks, and the surfaces of the abutment blocks are sleeved with abutment grooves provided on the fixed plate.

[0008] As a preferred technical solution of the present invention, screws are passed through both ends of the connecting plate and the middle of the traction block, and the thread at the end of the screw has a thread groove opened on the inner wall of the traction groove.

[0009] As a preferred technical solution of the present invention, the traction block and the connecting plate are fitted with each other and both have a receiving groove, and a third spring wound on the surface of the screw is arranged inside the receiving groove, and the two side ends of the third spring are respectively abutted between the surface of the connecting plate and the inner wall of the receiving groove.

[0010] As a preferred technical solution of the present invention, a plurality of groups of bolts penetrating another fixing block are fixed around the mounting plate, and nuts are threadedly installed on the surfaces of the bolts.

[0011] As a preferred technical solution of the present invention, universal blocks are symmetrically inserted into the two side ends of the push rod, and rotating grooves are symmetrically sleeved on the two side ends of the universal blocks. The four ends of the universal blocks are fixed with rotating shafts that pass through the push rod and the rotating grooves respectively, and the rotating grooves are all fixed on the fixed blocks.

[0012] As a preferred technical solution of the present invention, the outer side wall of the battery pack body is fixed with a first slide groove, and the first slide groove is embedded with a first slider, the surface of the first slider is fixed with a fixed block, and the surface of the fixed block is fixed with a rotating groove.

[0013] A battery pack protection structure method, comprising the following steps: S1. When the operator drives the car through a pothole, the mouth of the pothole contacts the surface of the base, and the base is subjected to force. The base pushes the second slider to move through the second slide groove, and the second slider pushes the mounting plate to move, so that the mounting plate pushes the push rod to move, and the push rod pushes the fixed block to drive the first slider to slide in the first slide groove, thereby alleviating the impact force of the mouth of the pothole contacting the surface of the base; S2. When the base is contacted by the depression, the base pushes the push rod to move. When the base moves closer to the side of the battery pack body, the rotating block fixed at one end of the base rotates in the rotating sleeve through the rotating rod, so that the angles between the groups of bases are adjusted to each other, thereby buffering the impact force on the base; S3. The fixing plate is pulled by a pulling rope. The fixing plate is installed on the base, thereby pulling the base.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects: The battery pack protection structure and the use method thereof are provided with a second slider, a mounting plate, a first spring, a fixing plate, a push rod, a first slider and a first slide groove. When the base is hit by the groove and the edge of the step, the base pushes the second slide groove to slide on the surface of the second slider, and the second slider squeezes the first spring to cause the first spring to undergo elastic deformation, and the mounting plate pushes the push rod to move, the push rod avoids the base and makes the base face the side of the battery pack body, the base buffers the impact force of the groove and the step, so that the surface groove and the edge of the step directly hit the surface of the battery pack body, thereby increasing the safety of the battery pack body in use.

[0015] The battery pack protection structure and the method for using the same are provided with a traction rope, a fixing plate and a mounting groove. The fixing plate is installed in the mounting groove, and the fixing plate is installed on the base. The traction rope pulls the battery pack body and the fixing plate to each other, so that the traction rope pulls the battery pack body and the base to each other, which facilitates the traction of the base and increases the stability of the base.

[0016] The battery pack protection structure and the use method thereof are provided with a rotating sleeve, a rotating rod and a rotating block. When the base moves, the base drives the rotating block to rotate on the surface of the rotating rod, so that the rotating block slides in the rotating sleeve, and the angles between several groups of bases are adjusted, which facilitates the position adjustment between several groups of bases, prevents the base from being deformed after being hit by a gully or the edge of a step, and increases the service life of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of a top cross-sectional structure of a protective plate of the present invention; Figure 3It is a schematic diagram of the side cross-sectional structure of the present invention; Figure 4 is a schematic diagram of a side cross-sectional structure of a protective plate of the present invention; Figure 5 It is a schematic diagram of a top cross-sectional structure of a universal block and a rotating groove of the present invention; Figure 6 For the present invention Figure 1 A is an enlarged schematic diagram of the cross-sectional structure; Figure 7 For the present invention Figure 1 The enlarged cross-sectional structure diagram at B in the middle; Figure 8 For the present invention Figure 2 The enlarged cross-sectional structure diagram at C in the middle; Fig. 9 For the present invention Figure 3 Enlarged cross-sectional structural diagram at point D in the middle.

[0018] Among them: 1. battery pack body; 2. base; 3. push rod; 4. rotating groove; 5. mounting plate; 6. universal block; 7. mounting groove; 8. traction rope; 9. first slide groove; 10. first slider; 11. second slider; 12. first spring; 13. fixed plate; 14. fixed block; 15. connecting plate; 16. rotating shaft; 17. second slide groove; 18. positioning block; 19. resisting block; 20. spring groove; 21. second spring; 22. sleeve rod; 23. avoidance groove; 24. positioning groove; 25. resisting groove; 26. bolt; 27. nut; 28. rotating block; 29. ​​rotating rod; 30. rotating sleeve; 31. storage groove; 32. screw; 33. traction block; 34. threaded groove; 35. third spring; 36. traction groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, and purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials and reagents used in the following embodiments are all commercially available unless otherwise specified. Example

[0020] like Figure 1-9A battery pack protection structure shown in the figure includes a battery pack body 1, and the ends of the battery pack body 1 are symmetrically slidably connected with a plurality of fixed blocks 14, the outer side walls of the battery pack body 1 are all welded with first slide grooves 9, and the first slide grooves 9 are all embedded with first sliders 10, the surfaces of the first sliders 10 are all welded with fixed blocks 14, and the surfaces of the fixed blocks 14 are welded with rotating grooves 4, and the middle of the fixed block 14 is rotatably connected with a push rod 3, and the other end of the push rod 3 is rotatably connected with another fixed block 14, the two side ends of the push rod 3 are symmetrically inserted with universal blocks 6, and the two side ends of the universal block 6 are symmetrically sleeved with rotating grooves 4, the ends of the universal block 6 are all welded with rotating shafts 16 that respectively penetrate the push rod 3 and the rotating grooves 4, the rotating grooves 4 are all welded on the fixed block 14, and the other fixed block 14 is threaded with the mounting plate 5 The mounting plate 5 is installed, and the end of the mounting plate 5 is fitted with the base 2. The mounting plate 5 and the base 2 are both welded with a second slider 11 on one side where they are fitted to each other. The surface of the second slider 11 is sleeved with a second slide groove 17 provided on the base 2. The second slide groove 17 is provided with a first spring 12 abutting against the inner wall of the second slide groove 17 and the surface of the second slider 11. When the operator starts the vehicle, the vehicle drives the battery pack body 1 to pass through the corners of the grooves and steps, and the battery pack body 1 drives the base 2 to move. The base 2 fits with the corners of the grooves and steps, and when the corners of the grooves and steps hit the surface of the base 2, the base 2 pushes the second slide groove 17 to move, so that the second slide groove 17 slides on the surface of the second slider 11, and the second slide groove 17 is on the second slider 1 1, the inner wall of the second slide groove 17 and the surface of the second slider 11 squeeze the first spring 12, so that the first spring 12 is elastically deformed, and the first spring 12 becomes a contracted state, and the base 2 pushes the second slider 11 to move through the second slide groove 17, and the second slider 11 pushes the mounting plate 5 to move, and the mounting plate 5 pushes the other rotating groove 4 to move through another fixed block 14, and the other rotating groove 4 pushes the push rod 3 to move through the universal block 6, and the universal block 6 set at the other side end of the push rod 3 pushes the fixed block 14 to move through the rotating groove 4, and the fixed block 14 pushes the first slider 10 to slide in the first slide groove 9, and the first slider 10 slides in the first slide groove 9, so that the position change caused by the push rod 3 pushing the fixed block 14 can be avoided, so that the fixed block 1 4 can avoid the push rod 3 and the base 2, and avoid the impact of the gully and the step by the base 2, so as to avoid the direct impact of the gully and the step edge on the surface of the battery pack body 1, and after the base 2 is impacted by the gully and the step edge, after the position of a single base 2 is changed, the base 2 drives the rotating block 28 to rotate on the surface of the rotating rod 29, so that the rotating rod 29 rotates in the rotating sleeve 30, so that the angles between the groups of bases 2 are changed, and the impact force on the base 2 is buffered, so as to avoid the deformation of the larger base 2 after the larger base 2 hits the gully and the step edge, resulting in damage to the base 2, and when the angle of the base 2 changes, the base 2 drives the fixed block 14 to move through the mounting plate 5, and the fixed block 14 drives the rotating slot 4 to move,The rotating groove 4 is rotated on the surface of the rotating shaft 16 fixed around the universal block 6, so as to change the angle between the base 2 and the push rod 3, thereby facilitating the avoidance of the base 2; And when the operator needs to disassemble the mounting plate 5 and the other fixed block 14, the operator first screws the nut 27, and the nut 27 and the bolt 26 are threadedly matched with each other. After the nut 27 and the bolt 26 are separated, the base 2 drives the second slide groove 17 to move, the second slide groove 17 drives the second slide block 11 to move, and the second slide block 11 drives the mounting plate 5 to move, so that the mounting plate 5 drives the bolt 26 to move out of the other fixed block 14, which is convenient for the operator to disassemble the mounting plate 5 and the other fixed block 14, and improves the convenience of disassembly by the operator.

[0021] In other embodiments, a plurality of mounting grooves 7 are provided in the middle of the base 2, and a fixing plate 13 is inserted in the middle of each mounting groove 7, a traction rope 8 is provided between the fixing plate 13 and the battery pack body 1, and the ends of the traction rope 8 are respectively welded to the battery pack body 1 and the fixing plate 13, and connecting plates 15 are symmetrically provided at the ends of the traction rope 8, and traction blocks 33 are threadedly installed at the ends of the connecting plates 15, and the surfaces of the traction blocks 33 are sleeved with traction grooves 36 provided on the base 2, and the connecting plates 15 and the fixing plates 13 are welded with positioning blocks 18 on one side where they are attached to each other, and the surfaces of the positioning blocks 18 are sleeved with openings. The positioning groove 24 on the fixed plate 13 is used by the operator to connect the fixed plate 13 and the battery pack body 1 to each other with the traction rope 8. Then the operator takes the fixed plate 13 and inserts the fixed plate 13 into the installation groove 7. Then the operator pushes the connecting plate 15. The connecting plate 15 drives the traction block 33 to slide in the traction groove 36 and moves the connecting plate 15 to the front end of the fixed plate 13. Then the operator twists the screw 32 so that the screw 32 installs the connecting plate 15 at the front end of the fixed plate 13. The connecting plate 15 reinforces the fixed plate 13 and increases the strength of the fixed plate 13 installed in the installation groove 7.

[0022] In other embodiments, the inner wall of the installation groove 7 is symmetrically provided with an avoidance groove 23, and the inner wall of the avoidance groove 23 is connected with a spring groove 20 provided in the base 2, and a sleeve rod 22 and a second spring 21 are respectively provided inside the spring groove 20, and the two side ends of the second spring 21 are respectively abutted between the surface of the sleeve rod 22 and the inner wall of the spring groove 20, and a stop block 19 is welded at the end of the sleeve rod 22, and the surface of the stop block 19 is sleeved with a stop groove 25 provided on the fixing plate 13. When the operator needs to install the fixing plate 13 in the installation groove 7, the operator first presses the stop block 19, and the stop block 19 pushes the sleeve rod 22 to slide in the spring groove 20, so that the sleeve rod 22 squeezes the second spring 21 provided in the spring groove 20. After the second spring 21 is squeezed by the sleeve rod 22, the second spring 21 undergoes elastic deformation. After the second spring 21 undergoes elastic deformation, the second spring 21 exerts pressure on the sleeve rod 2 2 to avoid, so that the sleeve rod 22 enters the spring groove 20, and the stopper 19 enters the avoidance groove 23, which is convenient for storing the stopper 19. After the stopper 19 enters the avoidance groove 23, the stopper 19 avoids the fixed plate 13. When the fixed plate 13 is inserted into the installation groove 7, the stopper grooves 25 on both sides of the fixed plate 13 are aligned with the avoidance grooves 23. At this time, the operator's hand is released from the front end of the stopper 19. After the stopper 19 no longer squeezes the second spring 21 through the sleeve rod 22, the elastic deformation of the second spring 21 is restored, and the second spring 21 pushes the sleeve rod 22 to move, so that the sleeve rod 22 drives the stopper 19 to move, and the stopper 19 is inserted into the stopper groove 25. By inserting the stopper 19 into the stopper groove 25, the stopper 19 and the stopper groove 25 fix the fixed plate 13, and the fixed plate 13 is installed in the installation groove 7, which is convenient for installing the fixed plate 13. And when the operator needs to take the fixing plate 13 out of the installation groove 7, the operator pulls the traction rope 8, and the traction rope 8 drives the fixing plate 13 to move, so that the fixing plate 13 drives the groove 25 to move, and the inclined slope set at the inner wall end of the groove 25 and the inclined angle set at the end of the block 19 fit each other, and when the groove 25 moves, the inclined slope of the groove 25 pushes the inclined angle of the block 19 to move, so that the groove 25 pushes the block 19 to move, and the block 19 pushes the sleeve rod 22 to slide in the spring groove 20, so that the block 19 can be moved out of the groove 25.

[0023] In other embodiments, screws 32 are passed through both ends of the connecting plate 15 and the middle of the traction block 33. The threaded end of the screw 32 has a threaded groove 34 opened on the inner wall of the traction groove 36. The traction block 33 and the connecting plate 15 are fitted with each other and are provided with a receiving groove 31. A third spring 35 is wound around the surface of the screw 32 inside the receiving groove 31. The ends of the third spring 35 are respectively abutted between the surface of the connecting plate 15 and the inner wall of the receiving groove 31. When the operator inserts the fixing plate 13 into the installation groove 7 and needs to increase the stability of the fixing plate 13 inserted into the installation groove 7, the operator first pushes the installation plate 5. The installation plate 5 drives the traction block 33 to slide in the traction groove 36 through the screw 32, and moves the connecting plate 15 to the front end of the fixing plate 13. Then the operator fits the connecting plate 15 and the fixing plate 13 together, and the positioning block 18 fixed on one side thereof is fixed to the positioning block 18. The grooves 24 are aligned with each other, and then the operator presses the screw rod 32 to fit the screw rod 32 and the thread groove 34 together, and the operator twists the screw rod 32, and the screw rod 32 and the thread groove 34 are threadedly matched with each other, so that the screw rod 32 continues to move downward, and in the process of the screw 32 moving downward, the screw rod 32 pushes the connecting plate 15, and the connecting plate 15 drives the positioning block 18 to move, so that the positioning block 18 is inserted into the positioning groove 24, and the fixing plate 13 is restricted in the installation groove 7, and in the process of the connecting plate 15 moving downward, the connecting plate 15 squeezes the third spring 35, so that the third spring 35 is elastically deformed, and the third spring 35 in a loose state is changed to the third spring 35 in a tightened state, and after the screw rod 32 and the thread groove 34 are threadedly matched, the fixing plate 13 is fixed in the installation groove 7, and the stability of the fixing plate 13 installed in the installation groove 7 is increased; The third spring 35 is elastically deformed and restored, and the third spring 35 pushes the connecting plate 15 to move, and the connecting plate 15 drives the positioning block 18 to move out of the positioning groove 24, so that the positioning groove 24 and the positioning block 18 are automatically separated, and the operator no longer needs to pull the connecting plate 15, and the connecting plate 15 drives the positioning block 18 to move out of the positioning groove 24, thereby improving the convenience of the operator pulling the connecting plate 15 to move. The operator pushes the connecting plate 15, and the connecting plate 15 slides in the traction groove 36 through the traction block 33 of the screw rod 32, and the connecting plate 15 is moved away from the upper end of the fixing plate 13. After the connecting plate 15 no longer reinforces the fixing plate 13, the operator separates the fixing plate 13 from the mounting groove 7.

[0024] In other embodiments, a plurality of groups of bolts 26 penetrating another fixed block 14 are welded around the mounting plate 5, and nuts 27 are threadedly installed on the surface of the bolts 26. When the operator separates the fixing plate 13 from the base 2 and needs to separate the mounting plate 5 from the other fixed block 14, the operator first screws the nut 27, and the nut 27 and the rotating block 28 are threadedly matched with each other. After the nut 27 and the rotating block 28 are no longer threadedly matched, the operator pulls the mounting plate 5, and the mounting plate 5 drives the bolts 26 to move out of the nut 27, so that the base 2 is separated from the other fixed block 14.

[0025] In other embodiments, a rotating block 28 is welded to either end of the base 2, and a rotating sleeve 30 is sleeved on the surface of the rotating block 28 and is provided at the end of the other base 2, and a rotating rod 29 is welded to the inner wall of the rotating sleeve 30 and passes through the rotating block 28. When the base 2 is hit by a gully or a step edge, the base 2 moves upward, the base 2 drives the rotating block 28 to move, the rotating block 28 pulls the rotating sleeve 30 to move through the rotating rod 29, the push rod 3 drives the other base 2 to move, and the rotating block 28 rotates in the rotating sleeve 30 through the rotating rod 29, and at the same time, the other base 2 passes through the second slide groove 17, so that the second slide The groove 17 drives the second slider 11 to move, and the second slider 11 drives another fixed block 14 to move through the mounting plate 5, and the other fixed block 14 drives the rotating groove 4 to move, and the rotating groove 4 rotates at the universal block 6, so that the angle between the base 2 and the push rod 3 is adjusted, so that another base 2 can change its position following the movement of the base 2, so that the angles between several groups of bases 2 are changed with each other, thereby changing the position change of the base 2 after the base 2 contacts the gully or the step edge, avoiding deformation and damage of other bases 2 connected to each other and the base 2 contacting the gully or the step edge.

[0026] A battery pack protection structure method, comprising the following steps: S1. When the operator drives the car through a pothole, the mouth of the pothole contacts the surface of the base 2, and the base 2 is subjected to force. The base 2 pushes the second slider 11 to move through the second slide groove 17, and the second slider 11 pushes the mounting plate 5 to move, so that the mounting plate 5 pushes the push rod 3 to move, and the push rod 3 pushes the fixed block 14 to drive the first slider 10 to slide in the first slide groove 9, thereby alleviating the impact force of the mouth of the pothole contacting the surface of the base 2; S2. When the base 2 is contacted by the concave part, the base 2 pushes the push rod 3 to move. When the base 2 moves close to the side of the battery pack body 1, the rotating block 28 fixed at one end of the base 2 rotates in the rotating sleeve 30 through the rotating rod 29, so that the angles between the groups of bases 2 are adjusted to each other, thereby buffering the impact force on the base 2; S3. The fixing plate 13 is pulled by the pulling rope 8. The fixing plate 13 is installed on the base 2, so as to pull the base 2.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above" a second feature; "above" and "above" include that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below" a second feature; "below" and "below" include that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] The above shows and describes the basic principles of the present invention; the main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A battery pack protection structure, comprising a battery pack body (1), characterized in that: The end of the battery pack body (1) is symmetrically slidably connected to a plurality of fixed blocks (14), and the middle of the fixed block (14) is rotatably connected to a push rod (3), and the other end of the push rod (3) is rotatably connected to another fixed block (14), the other fixed block (14) is threadedly mounted on the mounting plate (5), and the end of the mounting plate (5) is fitted with a base (2), a second slider (11) is fixed to one side where the mounting plate (5) and the base (2) are fitted to each other, and the surface of the second slider (11) is sleeved with a second slide groove (17) provided on the base (2), and the inside of the second slide groove (17) is respectively provided with a first spring (12) abutting between the inner wall of the second slide groove (17) and the surface of the second slider (11), and a rotating block (28) is fixed to the end of either side of the base (2), and the surface of the rotating block (28) is sleeved with a rotating sleeve (30) provided on the other end of the base (2), and a rotating rod (29) penetrating the rotating block (28) is fixed to the inner wall of the rotating sleeve (30).

2. A battery pack protection structure according to claim 1, characterized in that: A plurality of groups of mounting grooves (7) are provided in the middle of the base (2), and a fixing plate (13) is inserted in the middle of each mounting groove (7). A traction rope (8) is provided between the fixing plate (13) and the battery pack body (1), and both ends of the traction rope (8) are respectively fixed to the battery pack body (1) and the fixing plate (13). Connecting plates (15) are symmetrically provided at both ends of the traction rope (8), and traction blocks (33) are threadedly installed at both ends of the connecting plate (15). The surfaces of the traction blocks (33) are sleeved with traction grooves (36) provided on the base (2). A positioning block (18) is fixed on one side where the connecting plate (15) and the fixing plate (13) are attached to each other, and the surfaces of the positioning blocks (18) are sleeved with positioning grooves (24) provided on the fixing plate (13).

3. A battery pack protection structure according to claim 2, characterized in that: The inner wall of the installation groove (7) is symmetrically provided with avoidance grooves (23), and the inner wall of the avoidance groove (23) is connected to a spring groove (20) provided in the base (2). A sleeve rod (22) and a second spring (21) are respectively provided inside the spring groove (20), and the two side ends of the second spring (21) are respectively abutted between the surface of the sleeve rod (22) and the inner wall of the spring groove (20). A stop block (19) is fixed to the end of the sleeve rod (22), and the surface of the stop block (19) is sleeved with a stop groove (25) provided on the fixing plate (13).

4. A battery pack protection structure according to claim 2, characterized in that: Screw rods (32) are passed through both ends of the connecting plate (15) and the middle of the traction block (33). The threaded end of the screw rod (32) has a thread groove (34) formed on the inner wall of the traction groove (36).

5. A battery pack protection structure according to claim 4, characterized in that: The traction block (33) and the connecting plate (15) are fitted together and both have a receiving groove (31), and a third spring (35) wound around the surface of the screw rod (32) is arranged inside the receiving groove (31), and the two side ends of the third spring (35) are respectively abutted between the surface of the connecting plate (15) and the inner wall of the receiving groove (31).

6. A battery pack protection structure according to claim 1, characterized in that: A plurality of groups of bolts (26) penetrating another fixing block (14) are fixed around the mounting plate (5), and nuts (27) are threadedly mounted on the surfaces of the bolts (26).

7. A battery pack protection structure according to claim 1, characterized in that: Universal blocks (6) are symmetrically inserted into the end portions of both sides of the push rod (3), and rotating grooves (4) are symmetrically sleeved on the end portions of both sides of the universal block (6). Rotating shafts (16) respectively penetrating the push rod (3) and the rotating grooves (4) are fixed to the ends of the four sides of the universal block (6), and the rotating grooves (4) are fixed to the fixed blocks (14).

8. The battery pack protection structure according to claim 1, characterized in that: The outer side walls of the battery pack body (1) are all fixed with first slide grooves (9), and the first slide grooves (9) are all embedded with first sliders (10), the surfaces of the first sliders (10) are all fixed with fixed blocks (14), and the surfaces of the fixed blocks (14) are fixed with rotating grooves (4).

9. A battery pack protection structure, characterized in that: A battery pack protection structure method according to claims 1-8 comprises the following steps: S1. When the operator drives the car through a pothole, the mouth of the pothole contacts the surface of the base (2), and the base (2) is subjected to force. The base (2) pushes the second slider (11) to move through the second slide groove (17), and the second slider (11) pushes the mounting plate (5) to move, so that the mounting plate (5) pushes the push rod (3) to move, and the push rod (3) pushes the fixed block (14) to drive the first slider (10) to slide in the first slide groove (9), thereby alleviating the impact force of the mouth of the pothole contacting the surface of the base (2); S2. When the base (2) is contacted by the depression, the base (2) pushes the push rod (3) to move. When the base (2) moves closer to one side of the battery pack body (1), a rotating block (28) fixed at one end of the base (2) rotates in the rotating sleeve (30) via the rotating rod (29), so that the angles of the plurality of groups of bases (2) are adjusted to each other, thereby buffering the impact force on the base (2); S3. The fixing plate (13) is pulled by the pulling rope (8), wherein the fixing plate (13) is mounted on the base (2), thereby pulling the base (2).

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