Power battery pressing plate assembly and battery box

Abstract

The invention relates to the technical field of power batteries, in particular to a power battery pressing plate assembly and a battery box, the power battery pressing plate assembly comprises a base rod, a lower pressing plate and a pressing plate, the lower pressing plate comprises a rubber plate arranged above a power battery, a lower pressing guide rail arranged on the rubber plate and penetrating through the base rod, and an overhanging locking mechanism arranged on the lower pressing guide rail; the pressing plate comprises a base plate, a connecting mechanism arranged on the base plate and a fixing mechanism arranged on the base plate, the connecting mechanism comprises a telescopic pressing rod arranged on the base plate and a connecting plug arranged on the telescopic pressing rod, and through the arrangement of the connecting mechanism and the fixing mechanism, the battery is simply and rapidly fixed through downward pressing of the base plate; through the arrangement of the fixing hook rod in the fixing mechanism, the fixation of the power battery can be relieved by rotating the fixing hook rod, through the arrangement of the fixing mechanism and the extension locking mechanism, the base plate and the rubber plate are connected, the situation that the base plate suddenly bounces after the fixation of the power battery is relieved is avoided, and the safety performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power batteries, and in particular to a power battery pressure plate assembly and a battery box. Background Art

[0002] The power battery pressure plate is a key structural component in the power battery module of new energy vehicles. It is mainly used to fix the power battery and ensure a tight connection between the power battery and the battery box.

[0003] Publication number CN207967123U relates to a fixed pressure plate and a battery box. The fixed pressure plate comprises a pressure plate body in a strip-shaped structure, having a top and bottom surface facing each other in the thickness direction of the pressure plate body, with the bottom surface facing the single battery cell; the top surface comprises two circuit board mounting surfaces spaced apart along the width of the pressure plate body, and the circuit board mounting surfaces extend along the length of the pressure plate body; the pressure plate body comprises a connecting and fixing portion recessed from the top surface to the bottom surface, extending along the length and including an opening and a guide groove communicating with the opening; the opening is located between the two circuit board mounting surfaces, and the maximum width of the opening is smaller than the maximum width of the guide groove.

[0004] However, when installing the above-mentioned fixing plate, a large number of bolts and nuts are used to fix the pressure plate. Workers need to perform a large number of repeated bolt tightening operations during installation. It is easy for the bolts to be under-tightened or over-tightened, resulting in uneven pressure of the pressure plate on the power battery. Summary of the Invention

[0005] The object of the present invention is to provide a power battery pressure plate assembly and a battery box to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] In one aspect, a power battery pressure plate assembly is provided, comprising:

[0008] A base rod, the base rod is arranged on the installation plane, and a fixing groove is formed on the base rod;

[0009] A lower pressing plate, the lower pressing plate comprising a rubber plate disposed above the power battery, a lower pressing guide rail disposed on the rubber plate and passing through the base rod, and an outwardly extending locking mechanism disposed on the lower pressing guide rail;

[0010] The pressing plate comprises a base plate, a connecting mechanism arranged on the base plate, and a fixing mechanism arranged on the base plate, the connecting mechanism comprising a telescopic pressure rod arranged on the base plate and a plug connector arranged on the telescopic pressure rod, the base plate is provided with a guide hole, the guide hole is inserted into the base rod, so that the base plate is pressed down along the base rod, the plug connector is inserted into the downward pressing guide rail and moves along the downward pressing guide rail until the plug connector is inserted into the outward locking mechanism, so that the telescopic pressure rod contracts and presses the rubber plate, thereby pressing the power battery, and at the same time, pushing the outward locking mechanism to move and insert into the fixing mechanism, rotating the fixing mechanism to insert into the fixing slot to fix the base plate, after rotating the fixing mechanism in the opposite direction, the outward locking mechanism hooks the fixing mechanism to prevent the base plate from bouncing, pulling the fixing mechanism to separate the outward locking mechanism and the fixing mechanism, and removing the base plate and rubber plate.

[0011] Preferably, an entry groove is provided on the downward pressing guide rail, and a clamping plate and a sliding groove provided on the clamping plate and the downward pressing guide rail are provided on the downward pressing guide rail.

[0012] Preferably, the overhang locking mechanism includes an overhang mounting block arranged in the downward guide rail, an overhang groove and a spring groove arranged on the overhang mounting block, an overhang block inserted in the overhang groove, a spring pull plate arranged on the overhang block and extending into the spring groove, an overhang spring arranged in the spring groove and connected to the spring pull plate, and a hooking groove opened on the overhang block.

[0013] Preferably, the overhang locking mechanism further includes a shift rod inserted through the slide slot and arranged on the overhang mounting block, a shift plate arranged on the shift rod, and a shift spring arranged in the overhang mounting block and connected to the shift rod.

[0014] Preferably, after the transposition plate is pulled away from the gap between the clamping plates, the overhanging mounting block is moved along the downward pressing guide rail until the transposition plate is inserted into the gap between another clamping plate, so that the overhanging block is aligned with the other fixing mechanism.

[0015] Preferably, the telescopic pressure rod includes a fixed rotating block arranged on the base plate, an upper rotating head arranged on the fixed rotating block, a retraction rod arranged on the upper rotating head, a sleeve rod arranged on the retraction rod, a lower rotating head arranged on the sleeve rod, and a downward pressure spring sleeved on the sleeve rod and the retraction rod.

[0016] Preferably, the plug connector includes a rotating slider arranged on the lower rotating head and a bevel plug arranged on the rotating slider.

[0017] Preferably, the fixing mechanism includes a fixed block arranged on the base plate, a plug-in slot provided on the fixed block, a rotating tongue plate provided on the plug-in slot, a slide rail provided on the plug-in slot wall, a hook plate provided on the slide rail and resting against the rotating tongue plate, a return spring provided in the fixed block and connected to the hook plate, a displacement slot provided on the base plate, and a fixed hook rod provided at one end of the hook plate passing through the displacement slot.

[0018] Preferably, when the rotating slider is inserted from the entry slot into the downward pressure guide rail, the base plate is pressed downward, causing the rotating slider to move along the downward pressure guide rail. When the rotating slider moves until the inclined plug is inserted into the extension slot, lifting the extension block, the slider stops and continues to press downward on the base plate, causing the retraction rod to enter the sleeve rod, compressing the downward pressure spring until the rotating tongue plate enters the hooking slot, aligning the fixed hook rod with the fixing slot. The fixed hook rod is rotated and inserted into the fixing slot to secure the base plate. The fixed hook rod is then rotated in the opposite direction, causing the extension block to hook onto the rotating tongue plate, preventing the base plate from bouncing up, thereby releasing the power battery from being secured. After the hook plate is pulled along the displacement slot, the base plate is lifted, causing the extension block to return to its original position, releasing the connection between the base plate and the rubber plate.

[0019] On the other hand, a battery box is also provided, characterized in that it includes the power battery pressure plate assembly described in any one of claims 1 to 9 above.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention adopts the arrangement of a connecting mechanism and a fixing mechanism, utilizes the downward pressure of the base plate to simply and quickly fix the battery, and the arrangement of a telescopic pressure rod and a downward pressure guide rail makes it easy to control and more uniform the pressure of the rubber plate on the battery. By arranging a fixing hook rod in the fixing mechanism, the fixing hook rod is rotated to release the fixation of the power battery. By arranging the fixing mechanism and the outward-extending locking mechanism, the base plate and the rubber plate are connected, thereby preventing the base plate from suddenly bouncing up after the fixation of the power battery is released, thereby improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of area A;

[0024] Figure 3 It is a schematic cross-sectional view of the present invention;

[0025] Figure 4 for Figure 3 Schematic diagram of the structure of area B;

[0026] Figure 5 This is a schematic structural diagram of the downward pressing guide rail and the rubber plate of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the downward pressure guide rail of the present invention;

[0028] Figure 7 Schematic diagram of the structure of the substrate of the present invention;

[0029] Figure 8 for Figure 7 Schematic diagram of the structure of area C;

[0030] Figure 9 This is a schematic structural diagram of the outward-extending mounting block of the present invention;

[0031] Figure 10 This is a schematic cross-sectional view of the outwardly extending mounting block of the present invention.

[0032] In the figure: 1. base rod; 2. fixing groove; 3. rubber plate; 4. downward pressure guide rail; 5. base plate; 6. guide hole; 7. entry groove; 8. clamping plate; 9. slide groove; 10. overhanging mounting block; 11. overhanging groove; 12. spring groove; 13. overhanging block; 14. spring pull plate; 15. overhanging spring; 16. hook groove; 17. shifting rod; 18. shifting plate; 19. shifting spring; 20. fixed rotating block; 21. upper rotating head; 22. retracting rod; 23. sleeve rod; 24. lower rotating head; 25. downward pressure spring; 26. rotating slider; 27. inclined plug; 28. fixing block; 29. ​​plug-in groove; 30. rotating tongue plate; 31. slide rail; 32. hook plate; 33. reset spring; 34. displacement groove; 35. fixed hook rod; 36. battery box. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1 to 10 , the present invention provides a technical solution:

[0035] Power battery pressure plate assembly, including:

[0036] The base rod 1 is arranged on the installation plane, and the installation platform is the bottom wall of the battery box 36. A fixing groove 2 is opened on the base rod 1, and a side plate that can cooperate with the fixing hook rod 35 is arranged in the fixing groove 2.

[0037] The lower pressure plate includes a rubber plate 3 arranged above the power battery, a lower pressure guide rail 4 arranged on the rubber plate 3 and passing through the base rod 1, and an outward locking mechanism arranged on the lower pressure guide rail 4. The lower pressure guide rail 4 is fixedly connected to the rubber plate 3 by setting bolts or gluing. An entry groove 7 is provided on the lower pressure guide rail 4. The entry groove 7 is located in the middle section of the lower pressure guide rail 4. A splint 8 and a slide groove 9 provided on the splint 8 and the lower pressure guide rail 4 are provided on the lower pressure guide rail 4. The splint 8 is fixedly connected to the lower pressure guide rail 4 by means of one-piece molding. Several splints 8 are provided on the lower pressure guide rail 4 and cooperate with each other so that a notch is provided between the two for clamping the transposition plate 18, and the slide groove 9 is used for allowing the transposition rod 17 to move.

[0038] The outward locking mechanism includes an outward mounting block 10, an outward slot 11, a spring slot 12, an outward block 13, a spring pull plate 14, an outward spring 15, a hook slot 16, a shift rod 17, a shift plate 18 and a shift spring 19. The outward mounting block 10 is arranged in the downward pressing guide rail 4, and the outward mounting block 10 is movably connected to the downward pressing guide rail 4. The outward slot 11 and the spring slot 12 are arranged on the outward mounting block 10. The outward slot 11 is arranged in the middle of the outward mounting block 10, and the spring slot 12 is arranged on the outward mounting block 10. The spring 15 is arranged on both sides of the extension groove 11, the extension block 13 is inserted into the extension groove 11, the extension block 13 is movably connected to the side wall of the extension groove 11, the spring pull plate 14 is arranged on the extension block 13 and extends into the spring groove 12, the spring pull plate 14 is fixedly connected to the extension block 13 by welding or setting screws, the spring pull plate 14 is movably connected to the spring groove 12, the extension spring 15 is arranged in the spring groove 12 and connected to the spring pull plate 14, one end of the extension spring 15 is welded, etc. The other end of the outrigger spring 15 is fixedly connected to the spring plate 14 by welding or the like. The hooking groove 16 is provided on the outrigger block 13. The shifting rod 17 passes through the chute 9 and is inserted into the outrigger mounting block 10. The shifting rod 17 is movably connected to the side walls of the outrigger mounting block 10 and the chute 9, respectively. The shifting plate 18 is provided on the shifting rod 17. The shifting plate 18 is fixedly connected to the shifting rod 17 by welding or setting screws or the like. The shifting spring 19 is arranged in the overhanging mounting block 10 and is connected to the shift rod 17. One end of the shift spring 19 is fixedly connected to the side wall of the overhanging mounting block 10 by welding or the like, and the other end of the shift spring 19 is fixedly connected to the shift rod 17 by welding or the like. After the shift plate 18 is pulled out of the gap between the splints 8, the overhanging mounting block 10 is moved along the downward pressure guide rail 4 until the shift plate 18 is inserted into the gap between the other splints 8, so that the overhanging block 13 is aligned with another fixing mechanism.

[0039] The pressing plate includes a base plate 5, a connecting mechanism arranged on the base plate 5, and a fixing mechanism arranged on the base plate 5. The connecting mechanism includes a telescopic pressure rod arranged on the base plate 5 and a plug connector arranged on the telescopic pressure rod. A guide hole 6 is provided on the base plate 5, so that the guide hole 6 is inserted into the base rod 1, so that the base plate 5 moves along the base rod 1, and the telescopic pressure rod includes a fixed rotating block 20, an upper rotating head 21, a retracting rod 22, a sleeve rod 23, a lower rotating head 24 and a downward pressure spring 25. The fixed rotating block 20 is arranged on the base plate 5, and the fixed rotating block 20 is fixedly connected to the base plate 5 by setting bolts, etc. The upper rotating head 21 is arranged on the fixed rotating block 20, and the upper rotating head 21 is set The retracting rod 22 is placed on the upper rotating head 21, and the retracting rod 22 is fixedly connected to the upper rotating head 21 by welding or setting bolts. The sleeve rod 23 is sleeved on the retracting rod 22, and the sleeve rod 23 is movably connected to the retracting rod 22. The lower rotating head 24 is set on the sleeve rod 23, and the lower rotating head 24 is fixedly connected to the sleeve rod 23 by welding or setting bolts. The downward pressure spring 25 is sleeved on the sleeve rod 23 and the retracting rod 22, and one end of the downward pressure spring 25 is fixedly connected to the side wall of the overhanging mounting block 10 by welding, and the other end of the downward pressure spring 25 is fixedly connected to the upper rotating head 21 by welding.

[0040] The plug connector includes a rotating slider 26 and a bevel plug 27. The rotating slider 26 is set on the lower rotating head 24. The rotating slider 26 is rotatably connected to the lower rotating head 24 by setting a rotating shaft, etc. The bevel plug 27 is set on the rotating slider 26. The bevel plug 27 is fixedly connected to the rotating slider 26 by welding, etc.

[0041] The fixing mechanism is provided with multiple on the base plate 5, and the downward pressure is adjusted by adjusting the position of the extended locking mechanism to align with different fixing mechanisms. The fixing mechanism includes a fixing block 28, a plug-in slot 29, a rotating tongue plate 30, a slide rail 31, a hook plate 32, a return spring 33, a displacement slot 34 and a fixed hook rod 35. The fixing block 28 is provided on the base plate 5, and the fixing block 28 is fixedly connected to the fixing block 28 by means of bolts or welding. The plug-in slot 29 is provided on the fixing block 28, and the rotating tongue plate 30 is provided. The cam 32 is provided on the plug-in slot 29, and the rotating tongue plate 30 is fixedly connected to the side wall of the plug-in slot 29 by setting a rotating shaft or the like. The slide rail 31 is opened on the wall of the plug-in slot 29, and the hook plate 32 is provided on the slide rail 31 and abuts against the rotating tongue plate 30. The hook plate 32 is movably connected to the slide rail 31, and the hook plate 32 is in an "L" shape. The return spring 33 is provided in the fixed block 28 and connected to the hook plate 32. One end of the return spring 33 is fixedly connected to the side wall of the fixed block 28 by welding or the like, and the other end of the pressure spring 25 is passed through the fixed block 28. The hook plate 32 is fixedly connected with the hook plate 32 by welding or other means, the displacement groove 34 is opened on the base plate 5, the fixed hook rod 35 is set at one end of the hook plate 32 passing through the displacement groove 34, and the fixed hook rod 35 is rotatably connected with the hook plate 32 by setting a rotating shaft or other means. When the rotating slider 26 is inserted into the pressing guide rail 4 from the entry groove 7, the base plate 5 is pressed down, so that the rotating slider 26 moves along the pressing guide rail 4. When the rotating slider 26 moves to the inclined plug 27 and inserts into the overhanging groove 11, it stops when the overhanging block 13 is lifted, and continues to press the base plate 5, so that The retracted rod 22 enters the sleeve rod 23, compressing the downward spring 25 until the protruding block 13 hooks the rotating tongue plate 30, aligning the fixing hook rod 35 with the fixing groove 2, rotating the fixing hook rod 35 and inserting it into the fixing groove 2 to fix the substrate 5, and rotating the fixing hook rod 35 in the opposite direction. The protruding block 13 hooks the rotating tongue plate 30 to prevent the substrate 5 from bouncing up, thereby releasing the fixation of the power battery. After pulling the hook plate 32 to move along the displacement groove 34, pull up the substrate 5, so that the protruding block 13 returns to its original position, and releases the connection between the substrate 5 and the rubber plate 3.

[0042] Working principle: When in use, after pulling the transposition plate 18 out of the gap between the clamping plates 8, the overhanging mounting block 10 moves along the downward pressing guide rail 4 until the transposition plate 18 is inserted into the gap between the other clamping plates 8, so that the overhanging block 13 is aligned with the other fixed block 28. When the rotating slider 26 is inserted into the downward pressing guide rail 4 from the entry groove 7, the base plate 5 is pressed down, so that the rotating slider 26 moves along the downward pressing guide rail 4. When the rotating slider 26 moves to the inclined plug 27 inserted into the overhanging groove 11 and lifts the overhanging block 13, it stops and continues to press down the base plate 5 so that the retraction rod 22 moves in. Insert the rod 23 and compress the downward spring 25 until the overhanging block 13 hooks the rotating tongue plate 30, align the fixing hook rod 35 with the fixing groove 2, rotate the fixing hook rod 35 and insert it into the fixing groove 2 to fix the substrate 5, rotate the fixing hook rod 35 in the opposite direction, the overhanging block 13 hooks the rotating tongue plate 30 to prevent the substrate 5 from bouncing up, and release the fixation of the power battery. When the position of the overhanging mounting block 10 needs to be adjusted, pull the hook plate 32 to move along the displacement groove 34, pull up the substrate 5, return the overhanging block 13 to its original position, and release the connection between the substrate 5 and the rubber plate 3.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Power battery pressure plate assembly, characterized in that: include: A base rod, the base rod is arranged on the installation plane, and a fixing groove is formed on the base rod; A lower pressing plate, the lower pressing plate comprising a rubber plate disposed above the power battery, a lower pressing guide rail disposed on the rubber plate and passing through the base rod, and an outwardly extending locking mechanism disposed on the lower pressing guide rail; The pressing plate comprises a base plate, a connecting mechanism arranged on the base plate, and a fixing mechanism arranged on the base plate, the connecting mechanism comprising a telescopic pressure rod arranged on the base plate and a plug connector arranged on the telescopic pressure rod, the base plate is provided with a guide hole, the guide hole is inserted into the base rod, so that the base plate is pressed down along the base rod, the plug connector is inserted into the downward pressing guide rail and moves along the downward pressing guide rail until the plug connector is inserted into the outward locking mechanism, so that the telescopic pressure rod contracts and presses the rubber plate, thereby pressing the power battery, and at the same time, pushing the outward locking mechanism to move and insert into the fixing mechanism, rotating the fixing mechanism to insert into the fixing slot to fix the base plate, after rotating the fixing mechanism in the opposite direction, the outward locking mechanism hooks the fixing mechanism to prevent the base plate from bouncing, pulling the fixing mechanism to separate the outward locking mechanism and the fixing mechanism, and removing the base plate and rubber plate.

2. The power battery pressure plate assembly according to claim 1, characterized in that: An entry groove is provided on the downward pressing guide rail, and a clamping plate and a sliding groove provided on the clamping plate and the downward pressing guide rail are provided on the downward pressing guide rail.

3. The power battery pressure plate assembly according to claim 2, characterized in that: The overhang locking mechanism includes an overhang mounting block arranged in the downward guide rail, an overhang groove and a spring groove arranged on the overhang mounting block, an overhang block inserted in the overhang groove, a spring pull plate arranged on the overhang block and extending into the spring groove, an overhang spring arranged in the spring groove and connected to the spring pull plate, and a hooking groove opened on the overhang block.

4. The power battery pressure plate assembly according to claim 3, characterized in that: The overhang locking mechanism further includes a shift rod inserted through the slide slot and arranged on the overhang mounting block, a shift plate arranged on the shift rod, and a shift spring arranged in the overhang mounting block and connected to the shift rod.

5. The power battery pressure plate assembly according to claim 4, characterized in that: After the transposition plate is pulled away from the gap between the clamping plates, the overhanging mounting block moves along the pressing guide rail until the transposition plate is inserted into the gap between another clamping plate, so that the overhanging block is aligned with the other fixing mechanism.

6. The power battery pressure plate assembly according to claim 4, characterized in that: The telescopic pressure rod includes a fixed rotating block arranged on the base plate, an upper rotating head arranged on the fixed rotating block, a retracting rod arranged on the upper rotating head, a sleeve rod sleeved on the retracting rod, a lower rotating head arranged on the sleeve rod, and a downward pressure spring sleeved on the sleeve rod and the retracting rod.

7. The power battery pressure plate assembly according to claim 6, characterized in that: The plug connector comprises a rotating slider arranged on the lower rotating head and a bevel plug arranged on the rotating slider.

8. The power battery pressure plate assembly according to claim 7, characterized in that: The fixing mechanism includes a fixing block arranged on the base plate, a plug-in slot provided on the fixing block, a rotating tongue plate provided on the plug-in slot, a slide rail provided on the plug-in slot wall, a hook plate provided on the slide rail and resting against the rotating tongue plate, a return spring provided in the fixing block and connected to the hook plate, a displacement slot provided on the base plate, and a fixing hook rod provided at one end of the hook plate passing through the displacement slot.

9. The power battery pressure plate assembly according to claim 8, characterized in that: When the rotating slider is inserted into the downward pressing guide rail from the entry slot, the base plate is pressed down, causing the rotating slider to move along the downward pressing guide rail. When the rotating slider moves to the point where the inclined plug is inserted into the outward pressing slot and the outward pressing block is lifted, it stops and continues to press down the base plate, causing the retraction rod to enter the sleeve rod and compressing the downward pressing spring until the rotating tongue plate enters the hooking slot, aligning the fixed hook rod with the fixed slot, rotating the fixed hook rod and inserting it into the fixed slot to fix the base plate, rotating the fixed hook rod in the opposite direction, and the outward pressing block hooks the rotating tongue plate to prevent the base plate from bouncing up, thereby releasing the fixation of the power battery. After pulling the hook plate to move along the displacement slot, the base plate is pulled up, causing the outward pressing block to return to its original position, thereby releasing the connection between the base plate and the rubber plate.

10. A battery box, characterized in that , including the power battery pressure plate assembly described in any one of claims 1 to 9 above.

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