New energy battery pack shell assembly

Abstract

The invention relates to the technical field of battery pack shells, and discloses a new energy battery pack shell assembly which comprises a lower box body, an upper cover fixedly connected to the top of the lower box body, a plurality of battery packs connected between the lower box body and the upper cover, and a lower plate fixedly connected to the interior of the lower box body, meanwhile, the partition pieces and the hard elastic strips are matched to isolate the sliding plates, and the partition pieces and the hard elastic strips can be inserted between the two battery packs, so that heat insulation is further enhanced, heating of the battery packs is delayed, and firing of the battery packs due to heating is delayed. The push rod and the lower box body are synchronously pressed, part of impact force is converted into elastic potential energy, acting force on the battery pack is relieved, deformation and damage risks of the battery pack are reduced, meanwhile, the push rod is pressed to move, the heat insulation effect is further enhanced, heating of the battery pack is delayed, thermal runaway is prevented, and the physical isolation effect is achieved; more serious damage caused by mutual extrusion between the battery packs is prevented, the battery packs are protected, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack shells, and in particular to a new energy battery pack shell assembly. Background Art

[0002] In the existing technology, new energy battery packs have high requirements for battery life, and the battery pack layout is tightly fitted, so that more batteries can be installed in a limited space, thereby improving the overall power and battery life. At the same time, in order to ensure the stability of the structure and avoid resonance of the batteries inside the vehicle, the internal battery packs need to be tightly arranged and fitted to enhance the overall stability and reliability. However, when the vehicle encounters a collision, the battery pack will be subjected to a huge impact force, causing the battery block to be severely deformed and damaged, damaging the battery separator and causing a short circuit, resulting in the fast heating and fire of the fitted battery pack. At present, in the field of new energy battery pack protection, the root cause of thermal runaway cannot be touched. Since the battery packs are always in contact with each other, multiple positive and negative electrode materials are in direct contact, and a large amount of heat is released instantly in a short period of time. The heat dissipation is greatly hindered, causing heat to continue to accumulate inside the battery pack, and then causing thermal runaway. At the same time, the electrolyte inside the battery is usually flammable. Under the dual effects of high temperature environment and damaged battery structure, the risk of electrolyte leakage and thermal runaway will be further aggravated, making the electrolyte extremely easy to leak. After the leaked electrolyte comes into contact with the air, a chemical reaction will occur to generate flammable gas. At this time, as long as it encounters a tiny spark or a high-temperature object, it will burn or even cause an explosion.

[0003] To this end, a new energy battery pack shell assembly is proposed to improve the safety performance of the battery pack and effectively reduce the possibility of thermal runaway caused by vehicle fire. Summary of the Invention

[0004] The purpose of the present invention is to provide a new energy battery pack housing assembly to solve the problem that the battery pack housing cannot prevent heat from continuously accumulating inside the battery pack.

[0005] The technical solution of the present invention is: a new energy battery pack shell assembly, including a lower box body, and also including an upper cover fixedly connected to the top of the lower box body, a plurality of battery packs connected between the lower box body and the upper cover, a lower plate fixedly connected to the inside of the lower box body, a plurality of slides connected to the inside of the lower plate, two push rods horizontally slidably connected to both sides of the slide, two pressure pieces vertically slidably connected to both sides of the slide, a plurality of partitions connected to the middle of the lower plate, and a hard elastic bar connected to the side of the partition close to the slide, the slides are equidistantly arranged above the lower plate, when the push rod is in the initial position, the left side of the leftmost slide does not contact the left side of the lower plate, when the push rod is pressed and moved, the plurality of slides are separated by the pressure piece, and at the same time, the partitions and the hard elastic bar are cooperated to fill and isolate the plurality of slides.

[0006] Furthermore, the two push rods are symmetrical about the central axis of the lower box body, a positioning rod is provided on the side of the push rod close to the lower plate, a positioning spring is connected between the push rod and the lower plate, a round shaft block is provided at one end of the push rod, the positioning rod is located inside the lower plate, and multiple positioning springs are provided. When the push rod is squeezed by the positioning spring and fits against the inner wall of the lower box body, the push rod is located in the initial position.

[0007] Furthermore, the pressure piece includes a connecting plate vertically slidably connected to the outside of the lower plate, a plurality of side plates equidistantly arranged and fixedly connected to the bottom of the connecting plate, and a pressure wheel fixedly connected to the inside of the side plate, an arc block is provided at one end of the connecting plate close to the circular shaft block, a positioning strip is provided at the bottom of the connecting plate, and a straight slot is opened on the connecting plate.

[0008] Furthermore, a sliding groove is opened on the side plate, the pressure wheel is located inside the sliding groove, the arc block is always fitted with the circular shaft block, the pressure wheel is always fitted with the inclined block, and the number of the side plates and partitions is always two less than the skateboard.

[0009] Furthermore, a protrusion is provided on one side of the slide plate close to the push rod, and an inclined block is provided on one side of the protrusion close to the push rod. The bottom of the inclined block is an inclined surface, and a locking hole is provided on the protrusion.

[0010] Furthermore, when the push rod is in the initial position, the distance between the vertex of the leftmost pressure wheel and the inclined block is equal to the height of the positioning bar. When the push rod is in the initial position, the distance length between the pressure wheel and the inclined block increases from left to right, and the positioning bar is located inside the locking hole.

[0011] Furthermore, the hard elastic bar includes a straight bar block connected to the side of the partition close to the slide, and a return spring connected between the lower plate and the straight bar block. When the push rod is in the initial position, the straight bar block fits against one side of the slide.

[0012] Furthermore, the separator includes a circular sleeve fixedly connected to the inside of the lower plate, a rotating shaft rotatably connected to the inside of the circular sleeve, a torsion spring connected between the circular sleeve and the rotating shaft, and a winding sheet wound around the outside of the rotating shaft, and the winding sheet is fixedly connected to the straight bar.

[0013] Furthermore, guide rods are provided on the top of both sides of the lower plate, round bar holes are opened on both sides of the lower plate, a plurality of positioning grooves are opened at equal intervals on the top of the lower plate, and locking rods are provided on both sides of the lower plate close to the rightmost slide. When the push rod is in the initial position, the return spring and the torsion spring are both compressed.

[0014] Furthermore, the guide rod is located inside the straight slot, the positioning rod is located inside the round bar hole, two positioning rods and two round bar holes are provided, the bottom of the straight bar block is located inside the positioning groove, and the locking rod is used to fix the rightmost slide.

[0015] Beneficial effects of the present invention: 1. The push rod and the lower box are subjected to pressure simultaneously, which converts part of the impact force into elastic potential energy, cushions the impact, reduces the force on the battery pack, and reduces the risk of deformation and damage to the battery pack. At the same time, the push rod is pressed and moves, and the extrusion of the arc block is transmitted to drive the connecting plate to rise, thereby causing the pressure wheel inside the side plate to squeeze the oblique block, realizing equidistant separation of the slide plate, driving the top battery pack to move and create a gap. At the same time, the circular sleeve of the separator is fixed in the lower plate, and the rotating shaft rotates under the action of the torsion spring to unfold the auxiliary roll sheet and insert it between adjacent battery packs. This not only further enhances the thermal insulation effect, delays the heating of the battery pack, and prevents thermal runaway, but also plays a physical isolation role to prevent more serious damage between battery packs due to mutual extrusion, thereby protecting the battery pack and improving heat dissipation efficiency.

[0016] 2. This is achieved through the interaction between the mechanical structure, from the push rod being pressed to the pressure piece, to the separation of the slide plate, and then to the action of the separator and the hard elastic bar. This purely mechanical design avoids the failure of the electronic control system when under pressure, improves the safety and reliability of the battery pack under various conditions, ensures stable and improved heat dissipation conditions, and breaks the vicious cycle of heat accumulation caused by tight fit.

[0017] 3. There is no need to adjust the layout of the existing battery pack. The battery pack is fixedly connected to the top of the skateboard, which provides great flexibility for the layout of the battery pack. Only a simple adjustment of the installation position is required to adapt the skateboard of this device to installation. The installation method of the separator and the hard elastic bar is also relatively independent. They can be installed inside the existing lower plate through a simple fixing device. There is no need for large-scale modification of the existing battery pack, which greatly reduces the difficulty and cost of integration with existing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 Schematic diagram of the structure of the push rod of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of point A in the middle; Figure 5 It is a structural schematic diagram of the skateboard of the present invention; Figure 6 It is a structural schematic diagram of the pressing piece of the present invention; Figure 7 Schematic diagram of the structure of the hard elastic bar of the present invention; Figure 8 Schematic diagram of the structure of the separator of the present invention; Figure 9It is a structural schematic diagram of the lower plate of the present invention.

[0019] In the picture: 1. Lower box; 2. Upper cover; 3. Battery pack; 4. Lower plate; 41. Guide rod; 42. Round bar hole; 43. Positioning slot; 44. Locking rod; 5. Slide plate; 51. Bump; 511. Locking hole; 52. Oblique block; 6. Push rod; 61. Positioning rod; 62. Positioning spring; 63. Round shaft block; 7. Pressing piece; 71. Connecting plate; 711. Positioning bar; 712. Straight slot; 72. Side plate; 721. Slide slot; 73. Pressing wheel; 701. Arc block; 8. Separator; 81. Round sleeve; 82. Rotating shaft; 83. Torsion spring; 84. Coil; 9. Hard elastic strip; 91. Straight bar block; 92. Return spring. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] Reference Figure 1-9 , an embodiment of the present invention provides a new energy battery pack shell assembly, including a lower box body 1, and also includes an upper cover 2 fixedly connected to the top of the lower box body 1, a plurality of battery packs 3 connected between the lower box body 1 and the upper cover 2, a lower plate 4 fixedly connected to the inside of the lower box body 1, a plurality of slides 5 connected to the inside of the lower plate 4, two push rods 6 horizontally slidably connected to both sides of the slide 5, two pressing pieces 7 vertically slidably connected to both sides of the slide 5, a plurality of partitions 8 connected to the middle of the lower plate 4, and a hard elastic bar 9 connected to the side of the partition 8 close to the slide 5, the slides 5 are equidistantly arranged above the lower plate 4, the battery pack 3 is fixedly connected above the slide 5, the push rods 6 includes an initial position. When the push rod 6 is in the initial position, the left side of the leftmost skateboard 5 does not contact the left side of the lower plate 4, and there is a movable space between the two to ensure that multiple skateboards 5 can be synchronously separated at this distance. When the push rod 6 is pressed and moved, it will first buffer the impact to a certain extent, and then separate the multiple skateboards 5 through the pressure piece 7. When the multiple skateboards 5 are separated, the top battery pack 3 is driven to move, so that gaps appear between the multiple battery packs 3. At the same time, the separator 8 and the hard elastic bar 9 are used to fill and isolate the multiple skateboards 5. At this time, the separator 8 and the hard elastic bar 9 will be inserted between the two battery packs 3, thereby further strengthening the heat insulation, delaying the heating of the battery pack 3, and delaying the battery pack 3 from catching fire due to heating.

[0022] Specifically, when the vehicle is driving normally, the push rod 6 is in the initial position, which does not affect the tight layout of the battery pack 3, and the entire assembly structure is stable. The push rod 6 is first pressed and moved when it is subjected to the impact force. The push rod 6 first reduces the impact force on the battery pack 3, reducing the possibility of deformation and damage to the battery pack 3. At the same time, as the push rod 6 continues to move, the pressure piece 7 plays a role, prompting multiple slides 5 to drive the battery pack 3 to move and separate, improving heat dissipation conditions, and avoiding the vicious cycle of heat accumulation caused by close fit. At the same time, the separator 8 and the hard elastic bar 9 are quickly inserted between the battery packs 3, which not only further enhances the heat insulation effect, can extremely effectively delay the heating of the battery pack 3 and prevent the occurrence of thermal runaway, but also plays a physical isolation role to prevent the battery packs 3 from being squeezed each other and causing more serious damage.

[0023] Reference Figure 1-4 The two push rods 6 are symmetrical about the central axis of the lower box body 1, so that the two push rods 6 push the corresponding slide plates 5. A positioning rod 61 is provided on one side of the push rod 6 close to the lower plate 4, and a positioning spring 62 is connected between the push rod 6 and the lower plate 4. One end of the push rod 6 is provided with a round shaft block 63. The positioning rod 61 is located inside the lower plate 4, so that the positioning rod 61 is restricted by the lower plate 4 when the push rod 6 is quickly impacted. It can also ensure that the push rod 6 can slide horizontally for a short time. A plurality of positioning springs 62 are provided to enhance the elastic coefficient, so that the push rod 6 can be accurately positioned and supported by the plurality of positioning springs 62, and at the same time, part of the impact force is converted into its own elastic potential energy, effectively reducing the impact force received by the battery pack 3. When the push rod 6 is squeezed by the positioning spring 62 and fits against the inner wall of the lower box body 1, the push rod 6 is in the initial position, so that when the lower box body 1 is pressurized, the push rod 6 will also be pressurized synchronously. Then, when the push rod 6 is impacted, the push rod 6 will compress the positioning spring 62, and the round shaft block 63 at one end of the push rod 6 will separate the multiple slide plates 5 through the pressing piece 7.

[0024] Reference Figure 1-6 The pressing piece 7 includes a connecting plate 71 that is vertically slidably connected to the outside of the lower plate 4, a plurality of side plates 72 that are equidistantly arranged and fixedly connected to the bottom of the connecting plate 71, and a pressure wheel 73 that is fixedly connected to the inside of the side plate 72. An arc block 701 is provided at one end of the connecting plate 71 close to the circular shaft block 63, so as to better contact the circular shaft block 63, achieve a smooth transition during the pushing process of the push rod 6, and reduce the jamming phenomenon. A positioning strip 711 is provided at the bottom of the connecting plate 71, and a straight slot 712 is opened on the connecting plate 71. The straight slot 712 is restricted by the lower plate 4 to ensure the stability of the connecting plate 71 during the vertical sliding process and avoid offset or shaking.

[0025] Specifically, as the push rod 6 moves, the circular shaft block 63 at one end thereof squeezes the arc block 701. Due to the arc design of the arc block 701, the two can contact smoothly and transmit thrust. The circular shaft block 63 pushes the arc block 701, thereby driving the connecting plate 71 to slide vertically upward along the outside of the lower plate 4. During the sliding process, the positioning bar 711 will first release the lock on the skateboard 5, and then the pressure wheel 73 inside the side plate 72 will contact the skateboard 5. The rolling design of the pressure wheel 73 can effectively reduce the friction, making the process of the side plate 72 pushing the skateboard 5 smoother, and gradually separating the multiple skateboards 5.

[0026] Reference Figure 2-6 When the lock body 71 is in the unlocking state, the lock body 71 is locked, and the locking cam 73 is locked, so that the lock body 71 can be locked directly, and the lock body 71 can be locked directly, thereby effectively stopping the lock body 71 from sliding upward.

[0027] In addition, under normal working conditions, the structure maintains a fitting state, and there is a small pre-tightening force between the two, which is about five Newtons. This pre-tightening force can ensure that during the driving of the vehicle, even if vibration occurs, for example, the arc block 701 and the circular shaft block 63 will not be separated, and will not affect the normal movement of the circular shaft block 63 under the action of the push rod 6. At the same time, the arc diameter of the arc block 701 can be thirty centimeters.

[0028] Reference Figure 2-6 The battery pack 3 is fixedly connected to the top of the skateboard 5. A protrusion 51 is provided on the side of the skateboard 5 close to the push rod 6. A sloped block 52 is provided on the side of the protrusion 51 close to the push rod 6. The bottom of the sloped block 52 is a sloped surface. When the pressure wheel 73 moves upward, the sloped surface at this position will be squeezed. A locking hole 511 is provided on the protrusion 51.

[0029] When the push rod 6 is in the initial position, the distance between the top of the pressure wheel 73 on the far left and the inclined block 52 is equal to the height of the positioning bar 711, ensuring that when the pressure wheel 73 contacts the inclined block 52, the positioning bar 711 no longer locks the protrusion 51. When the push rod 6 is in the initial position, the distance between the pressure wheel 73 and the inclined block 52 increases from left to right, and the positioning bar 711 is located inside the locking hole 511. The positioning bar 711 is used to lock the slide plate 5. The positioning bar 711 is made of steel that is compatible with the protrusion 51, and the surface is hardened to enhance its wear resistance and locking stability, so that the positioning bar 711 is used to firmly lock the slide plate 5, ensuring that during normal driving, the slide plate 5 will not move arbitrarily due to factors such as vibration and bumps of the vehicle.

[0030] Specifically, when the pressure wheel 73 moves upward, since the distance between the pressure wheel 73 and the inclined block 52 increases from left to right, the pressure wheel 73 on the far left will first contact the inclined block 52, causing the skateboard 5 on the far left to move first, and all the pressure wheels 73 move upward the same distance, so that the skateboard 5 on the left moves the longest distance, which decreases from left to right, thereby achieving equidistant separation of the skateboards 5, ensuring that there is sufficient gap between each skateboard 5, effectively reducing the heat dissipation demand of the battery pack 3 during a collision, and preventing the risk of mutual squeezing due to excessive proximity between the battery packs 3.

[0031] Reference Figure 1-8 The hard elastic bar 9 includes a straight bar block 91 connected to the side of the separator 8 close to the slide 5, and a return spring 92 connected between the lower plate 4 and the straight bar block 91. When the push rod 6 is in the initial position, the straight bar block 91 is in contact with one side of the slide 5. At this time, the straight bar block 91 is blocked by the slide 5 and cannot move.

[0032] The separator 8 includes a circular sleeve 81 fixedly connected to the inside of the lower plate 4, a rotating shaft 82 rotatably connected to the inside of the circular sleeve 81, a torsion spring 83 connected between the circular sleeve 81 and the rotating shaft 82, and a coil 84 wound around the outside of the rotating shaft 82. The coil 84 is fixedly connected to the straight bar 91, and the straight bar 91 will pull out the coil 84 when it moves. The torsion spring 83 is made of 65Mn spring steel.

[0033] Specifically, the structure of the coil 84 is similar to that of a tape measure, but the winding direction is opposite to that of the tape measure, so as to ensure that it can be pulled out smoothly when the straight block 91 moves. At the same time, the thickness is relatively thinner than the tape measure, and the outside of the coil 84 is covered with ceramic fiber cloth, so that it has extremely low thermal conductivity, which can effectively prevent heat from being transferred between the battery packs 3, ensuring long-term reliability. In order to further improve the heat insulation effect, a layer of heat-insulating paint can be applied to the surface of the coil 84. Under the action of the return spring 92, the straight block 91 moves along the path of the positioning groove 43, and drives the coil 84 to move and be inserted between adjacent battery packs 3.

[0034] Reference Figure 1-9 , guide rods 41 are provided on the top of both sides of the lower plate 4, round bar holes 42 are opened on both sides of the lower plate 4, and multiple positioning grooves 43 are opened at equal intervals on the top of the lower plate 4. Locking rods 44 are provided on both sides of the lower plate 4 close to the rightmost slide 5. When the push rod 6 is in the initial position, the return spring 92 and the torsion spring 83 are compressed. When the slide 5 moves, the compressed return spring 92 and the torsion spring 83 move back, so that the straight bar 91 drives the winding piece 84 to move, further isolating the slide 5 and the battery pack 3 on its top. The guide rod 41 is located at Inside the straight slot 712, the guide rod 41 is restricted by the straight slot 712, the positioning rod 61 is located inside the round bar hole 42, and two positioning rods 61 and two round bar holes 42 are provided. The bottom of the straight bar block 91 is located inside the positioning groove 43, and the positioning groove 43 is used to restrict the straight bar block 91 so that the straight bar block 91 can move along the path of the positioning groove 43. The locking rod 44 is used to fix the rightmost skateboard 5 to ensure that the rightmost skateboard 5 is always fixed and the rightmost skateboard 5 will not drive the battery pack 3 on its top to move.

[0035] The working principle of the present invention is as follows: when the lower box body 1 is first subjected to external impact force, the push rod 6, which is in the initial position at this time, is tightly fitted with the lower box body 1 at the same time, and is then synchronously compressed with the lower box body 1. The compressed push rod 6 is restricted by the lower plate 4 to ensure that the push rod 6 can only move briefly in a specific direction, and the multiple positioning springs 62 connected between the push rod 6 and the lower plate 4, with their high elastic coefficient, when the push rod 6 is compressed, convert part of the impact force into its own elastic potential energy, effectively buffering the impact and reducing the force transmitted to the battery pack 3. When the push rod 6 is compressed and moves, the circular shaft block 63 at one end thereof begins to squeeze the arc block 701 that is always in fit with it, and the arc block 701 then drives the connecting plate 71 to slide vertically upward along the outside of the lower plate 4. During this process, the positioning bar 711 at the bottom of the connecting plate 71 first releases the lock on the slide plate 5, and the connecting plate 71 slides upward to drive the multiple side plates 72 and the pressure wheel 73 to rise synchronously, and the pressure wheel 73 squeezes The inclined surface at the bottom of the inclined block 52, since the distance between the pressure wheel 73 and the inclined block 52 increases from left to right, the leftmost pressure wheel 73 first contacts and squeezes the inclined block 52, causing the leftmost slide plate 5 to move first, and since all the pressure wheels 73 move upward by the same distance, the left slide plate 5 moves the longest distance, which decreases from left to right to achieve equidistant separation of the slide plates 5. When the slide plates 5 are separated, they also synchronously drive the battery pack 3 fixedly connected at the top to move, so that gaps appear between multiple battery packs 3, improving heat dissipation conditions. When the slide plate 5 moves, the compressed return spring 92 and torsion spring 83 release energy to produce a return movement. Under the action of the return spring 92, the straight block 91 moves along the path of the positioning groove 43, and drives the coil 84 to move, and is inserted between adjacent battery packs 3, further enhancing the heat insulation effect, delaying the heating of the battery pack 3, and preventing thermal runaway from occurring. At the same time, it plays a physical isolation role to prevent the battery packs 3 from being squeezed each other and causing more serious damage. It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A new energy battery pack housing assembly, comprising a lower box (1), characterized in that: The invention also includes an upper cover (2) fixedly connected to the top of the lower box (1), a plurality of battery packs (3) connected between the lower box (1) and the upper cover (2), a lower plate (4) fixedly connected to the interior of the lower box (1), a plurality of slides (5) connected to the interior of the lower plate (4), two push rods (6) horizontally slidably connected to both sides of the slide (5), two pressing pieces (7) vertically slidably connected to both sides of the slide (5), a plurality of partitions (8) connected to the middle of the lower plate (4), and a plurality of spacers (9) connected to the middle of the lower plate (4). and a hard elastic strip (9) connected to the side of the separator (8) close to the slide plate (5), the slide plates (5) are arranged equidistantly above the lower plate (4), the battery pack (3) is fixedly connected above the slide plate (5), and when the push rod (6) is in the initial position, the left side of the leftmost slide plate (5) does not contact the left side of the lower plate (4), and when the push rod (6) is pressed and moved, the plurality of slide plates (5) are separated by the press member (7), and at the same time, the plurality of slide plates (5) are filled and isolated by the separator (8) and the hard elastic strip (9).

2. The new energy battery pack housing assembly according to claim 1, characterized in that: The two push rods (6) are symmetrical about the central axis of the lower box body (1). A positioning rod (61) is provided on the side of the push rod (6) close to the lower plate (4). A positioning spring (62) is connected between the push rod (6) and the lower plate (4). A round shaft block (63) is provided at one end of the push rod (6). The positioning rod (61) is located inside the lower plate (4). A plurality of positioning springs (62) are provided. When the push rod (6) is squeezed by the positioning spring (62) and fits against the inner wall of the lower box body (1), the push rod (6) is located in the initial position.

3. The new energy battery pack housing assembly according to claim 2, characterized in that: The pressing member (7) comprises a connecting plate (71) vertically slidably connected to the outside of the lower plate (4), a plurality of side plates (72) equidistantly arranged and fixedly connected below the connecting plate (71), and a pressing wheel (73) fixedly connected to the inside of the side plate (72), an arc block (701) is provided at one end of the connecting plate (71) close to the circular shaft block (63), a positioning strip (711) is provided at the bottom of the connecting plate (71), and a straight notch (712) is provided on the connecting plate (71).

4. The new energy battery pack housing assembly according to claim 3, characterized in that: A sliding groove opening (721) is provided on the side plate (72), the pressure wheel (73) is located inside the sliding groove opening (721), the arc block (701) is always in contact with the circular shaft block (63), the pressure wheel (73) is always in contact with the inclined block (52), and the number of the side plates (72) and the separators (8) is always two less than the number of the slide plate (5).

5. The new energy battery pack housing assembly according to claim 3, characterized in that: A protrusion (51) is provided on one side of the slide plate (5) close to the push rod (6), and an inclined block (52) is provided on one side of the protrusion (51) close to the push rod (6). The bottom of the inclined block (52) is an inclined surface, and a locking hole (511) is provided on the protrusion (51).

6. The new energy battery pack housing assembly according to claim 5, characterized in that: When the push rod (6) is in the initial position, the distance between the vertex of the leftmost pressing wheel (73) and the inclined block (52) is equal to the height of the positioning bar (711); when the push rod (6) is in the initial position, the distance between the pressing wheel (73) and the inclined block (52) increases from left to right, and the positioning bar (711) is located inside the locking hole (511).

7. The new energy battery pack housing assembly according to claim 5, characterized in that: The hard elastic strip (9) comprises a straight strip (91) connected to the side of the partition (8) close to the slide (5), and a return spring (92) connected between the lower plate (4) and the straight strip (91). When the push rod (6) is in the initial position, the straight strip (91) is in contact with one side of the slide (5).

8. The new energy battery pack housing assembly according to claim 7, characterized in that: The separator (8) comprises a circular sleeve (81) fixedly connected to the interior of the lower plate (4), a rotating shaft (82) rotatably connected to the interior of the circular sleeve (81), a torsion spring (83) connected between the circular sleeve (81) and the rotating shaft (82), and a coil (84) wound around the exterior of the rotating shaft (82), wherein the coil (84) is fixedly connected to the straight bar (91).

9. The new energy battery pack housing assembly according to claim 7, characterized in that: Guide rods (41) are provided on the tops of both sides of the lower plate (4), round bar holes (42) are provided on both sides of the lower plate (4), a plurality of positioning grooves (43) are provided at equal intervals on the top of the lower plate (4), locking rods (44) are provided on both sides of the lower plate (4) close to the rightmost slide plate (5), and when the push rod (6) is in the initial position, the return spring (92) and the torsion spring (83) are both compressed.

10. The new energy battery pack housing assembly according to claim 9, characterized in that: The guide rod (41) is located inside the straight notch (712), the positioning rod (61) is located inside the round bar hole (42), two positioning rods (61) and two round bar holes (42) are provided, the bottom of the straight bar block (91) is located inside the positioning groove (43), and the locking rod (44) is used to fix the rightmost slide (5).

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