A battery module unit for new energy vehicles

Abstract

The present invention relates to the field of battery technology, and discloses a battery module unit for a new energy vehicle. An efficient energy absorption protection structure is arranged at the bottom of the bottom shell structure of the entire battery module unit structure, that is, a battery module bottom protection frame, a battery module bottom protection plate and an energy absorption partition fence are used as a frame-type support structure, and energy absorption longitudinal shell plates, first crushing energy absorption plate frames and other structures are arranged in the space of the independent unit therein, so that the impact suffered by the bottom can be quickly absorbed through the longitudinal crushing deformation of the first crushing energy absorption plate frame and the second crushing energy absorption plate frame to absorb a large amount of kinetic energy, thereby greatly protecting the pressure isolation bottom bracket and the unit battery structure arranged on the top thereof, avoiding the impact or puncture of a small point when the vehicle encounters an accident, greatly improving the impact resistance and protection effect, avoiding the battery short circuit and explosion caused by the impact of the bottom, greatly improving the protection and protection efficiency of the battery module itself, and having good technical progress.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a battery module unit for a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as a power source. Although new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc., electric vehicles are the most common and have the largest market share. A module is an integral unit composed of multiple battery cells. In electric vehicles, hybrid vehicles and other power storage systems, battery modules are used to provide electrical energy. Battery modules are usually composed of dozens or hundreds of battery cells, which are connected together by connectors or welding. Each battery cell is an independent battery unit, and the battery module organizes these cells together to form a larger battery unit. The battery module not only provides higher voltage and capacity, but also better current output capability and thermal management. By combining multiple battery cells into modules, higher battery energy density and power density can be achieved, thereby meeting the requirements of high energy and high power requirements for applications such as electric vehicles.

[0003] The battery packs currently used in new energy electric vehicles need to have more battery module units due to their limited energy density. However, a large number of battery modules will cause problems with vehicle weight and safety.

[0004] The battery modules used in existing new energy electric vehicles are basically protected by a layer of battery pack bottom shell after being assembled into the battery pack. When the vehicle encounters an accident, the single protective layer at the bottom can easily cause small impacts or punctures to the battery module units, making the battery structure prone to short circuits, combustion and other dangerous situations. That is, the battery module itself lacks protection and can be easily impacted by the bottom and cause danger when an accident occurs. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a battery module unit for a new energy vehicle, which solves the problems raised in the above background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A battery module unit of a new energy vehicle comprises a unit battery, wherein the lateral periphery of the unit battery is covered with a side pressure plate frame, the bottom of the side pressure plate frame is installed with a pressure isolation bottom bracket, the bottom surface of the pressure isolation bottom bracket is fixedly installed with a battery module bottom protective frame, the bottom of the battery module bottom protective frame is fixedly installed with a battery module bottom protective plate, an energy absorbing partition frame is fixedly provided on the inner side of the battery module bottom protective frame, a partition unit of the energy absorbing partition frame is provided with an energy absorbing longitudinal shell plate fixedly connected to the bottom surface of the pressure isolation bottom bracket, a first crushed energy absorbing plate frame, a second crushed energy absorbing plate frame and an energy absorbing longitudinal tube are fixedly installed on the other side of the energy absorbing longitudinal shell plate, an energy absorbing structure support ball, an energy absorbing side tube and an energy absorbing end tube are fixedly installed on the bottom of the energy absorbing longitudinal tube, the first crushed energy absorbing plate frame and the second crushed energy absorbing plate frame, an energy absorbing side tube and an energy absorbing end tube, an energy absorbing side tube and an energy absorbing end tube are fixedly installed at one end away from the energy absorbing structure support ball, and an energy absorbing bucket sleeve is fixedly installed at the other end of the energy absorbing bucket sleeve.

[0008] Preferably, the energy absorbing longitudinal shell plate comprises an energy absorbing shell plate side frame sleeve and an energy absorbing shell plate panel, and the energy absorbing shell plate panel is fixedly mounted on the upper edge wall and the lower edge wall on the inner side of the energy absorbing shell plate side frame sleeve.

[0009] Preferably, the first crush energy absorbing plate frame includes a first energy absorbing longitudinal plate, a wide-diameter energy absorbing through hole, a narrow-diameter energy absorbing through hole and a first energy absorbing side arc groove, the wide-diameter energy absorbing through hole and the narrow-diameter energy absorbing through hole are opened through the plate surface of the first energy absorbing longitudinal plate, and the diameter of the wide-diameter energy absorbing through hole is larger than the diameter of the narrow-diameter energy absorbing through hole, and the wide-diameter energy absorbing through hole and the narrow-diameter energy absorbing through hole are respectively located at the center and four corners of the plate body of the first energy absorbing longitudinal plate, and the first energy absorbing side arc groove is opened on the side of the first energy absorbing longitudinal plate; the second crush energy absorbing plate frame includes a second energy absorbing longitudinal plate, an energy absorbing through transverse groove and a second energy absorbing side arc groove, the second energy absorbing longitudinal plate is opened through the plate surface of the second energy absorbing longitudinal plate, the second energy absorbing side arc groove is opened on the side of the second energy absorbing longitudinal plate, and the first energy absorbing longitudinal plate and the second energy absorbing longitudinal plate are both fixedly connected to the surface of the energy absorbing longitudinal tube, and the first energy absorbing longitudinal plate is located on both sides of the energy absorbing longitudinal tube, and the second energy absorbing longitudinal plate is located on the front and rear sides of the energy absorbing longitudinal tube.

[0010] Preferably, the energy absorbing structure support ball is a spherical structure, and the top and bottom of the energy absorbing structure support ball are connected to energy absorbing longitudinal tubes and energy absorbing longitudinal shell plates that are connected to the pressure isolation bottom bracket and the battery module bottom guard plate; the energy absorbing side tubes are distributed on the left and right sides of the energy absorbing structure support ball, and the energy absorbing end tubes are distributed on the front and rear sides of the energy absorbing structure support ball.

[0011] Preferably, the energy absorbing circular plate shell includes an energy absorbing circular hoop ring and an energy absorbing circular plate, and the energy absorbing circular plate is fixedly mounted on the wall along the inner ring of the energy absorbing circular hoop ring; the energy absorbing bucket sleeve is fixedly connected to the energy absorbing circular hoop ring, and the energy absorbing bucket sleeve is a circular bucket-shaped structure that is larger at one end of the energy absorbing circular hoop ring than at the other end.

[0012] Preferably, the battery module bottom guard plate includes a bottom plate body and anti-skid grooves, the anti-skid grooves are multiple and equidistantly arranged in parallel on the bottom surface of the bottom plate body; the top and bottom surfaces of the energy-absorbing separation frame are respectively fixedly connected to the pressure isolation bottom bracket and the battery module bottom guard plate, the energy-absorbing separation frame includes longitudinal bars and transverse bars, the ends of the transverse bars are fixedly connected to the side surfaces of the longitudinal bars, and the longitudinal bars and transverse bars divide the inside of the battery module bottom guard frame into a plurality of rectangular frame spaces.

[0013] Preferably, the unit battery includes a battery body and a battery cell, and the battery cell is arranged on the top of the battery body; the side pressure plate frame includes a pressure frame plate, a side pressure plate, assembly screw holes, mounting buckles and flat head bolts, the assembly screw holes are opened on the surfaces of the pressure frame plate and the side pressure plate, and the mounting buckles assemble and fix the pressure frame plate and the side pressure plate through flat head bolts.

[0014] Preferably, a cell isolation layer membrane sleeve, an isolation enclosure and an isolation side panel are provided between the unit battery and the side enclosure pressure plate frame. The isolation enclosure and the isolation side panel are arranged on the outside of the cell isolation layer membrane sleeve, and an installation groove is provided on the edge of the surface of the isolation side panel. A push-button strip is fixedly installed on the side end of the isolation enclosure, and the isolation side panel is plugged into the push-button strip of the isolation enclosure through the installation groove.

[0015] Preferably, a module top shell and a battery cell connection mechanism are provided on the top of the unit battery, the module top shell is located above the battery cell connection mechanism, and the module top shell is installed on the top of the side pressure plate frame.

[0016] Preferably, a heat-conducting bottom plate is provided between the unit battery and the pressure-isolating bottom bracket; the battery cell connection mechanism includes a battery cell connection substrate, a battery cell connection contact and a wire, the wire is provided on the top surface of the battery cell connection substrate, and the battery cell connection contact is provided at the bottom of the battery cell connection substrate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The battery module unit of the new energy vehicle is provided with an efficient energy absorption protection structure at the bottom of the bottom shell structure (pressure isolation bottom bracket) of the entire battery module unit structure, that is, a battery module bottom protection frame, a battery module bottom protection plate and an energy absorption partition fence are used as a frame-type support structure, and an energy absorption longitudinal shell plate, a first crush energy absorption plate frame, a second crush energy absorption plate frame, an energy absorption side tube, an energy absorption end tube, an energy absorption longitudinal tube, an energy absorption bucket sleeve and an energy absorption circular plate shell structure are arranged in the space of the independent unit therein, so that when an accident occurs, the impact suffered by the bottom can be quickly absorbed by the longitudinal crush deformation of the first crush energy absorption plate frame and the second crush energy absorption plate frame to absorb a large amount of kinetic energy, thereby greatly protecting the pressure isolation bottom bracket and the unit battery structure arranged on the top thereof, avoiding the situation that the vehicle is impacted or punctured by small points when encountering an accident, greatly improving the impact resistance and protection effect, avoiding the situation that the battery is short-circuited and exploded due to the impact of the bottom, greatly improving the protection and protection efficiency of the battery module itself, and having good technical progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional exploded schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a three-dimensional view of the local structure of the present invention;

[0021] Figure 3 It is another partial structural stereoscopic view of the present invention;

[0022] Figure 4 It is another partial structural stereoscopic view of the present invention;

[0023] Figure 5 It is another partial structural stereoscopic view of the present invention;

[0024] Figure 6 A sectional stereoscopic view of the energy-absorbing partition fence of the present invention;

[0025] Figure 7 It is a three-dimensional cross-sectional view of the energy-absorbing circular plate shell of the present invention.

[0026] In the figure: 1, unit battery; 2, side pressure plate frame; 3, pressure isolation bottom bracket; 4, battery module bottom protection frame; 5, battery module bottom protection plate; 6, energy absorption separation fence; 7, energy absorption longitudinal shell plate; 8, first collapse energy absorption plate frame; 9, second collapse energy absorption plate frame; 10, energy absorption side pipe; 11, energy absorption end pipe; 12, energy absorption longitudinal pipe; 13, energy absorption bucket sleeve; 14, energy absorption circular plate shell; 15, battery cell isolation layer membrane sleeve; 16, isolation enclosure; 17, isolation side plate; 18, battery cell connection mechanism; 19, module top shell; 20, heat conductive bottom plate; 21, energy absorption structure support ball;

[0027] 101. Battery body; 102. Battery cell; 201. Pressure frame plate; 202. Side pressure plate; 203. Assembly screw hole; 204. Mounting buckle; 205. Flat head bolt; 501. Bottom plate body; 502. Equipped with anti-skid groove; 601. Vertical bar; 602. Horizontal bar; 701. Energy absorbing shell plate side frame sleeve; 702. Energy absorbing shell plate panel; 801. First energy absorbing vertical plate; 802. Wide-diameter energy absorbing through hole; 803. Narrow-diameter energy absorbing through hole; 804. First energy absorbing side arc groove; 901. Second energy absorbing vertical plate; 902. Energy absorbing through horizontal groove; 903. Second energy absorbing side arc groove; 1401. Energy absorbing circular hoop; 1402. Energy absorbing circular plate; 1801. Cell connection substrate; 1802. Wire; 1803. Cell connection contact. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0029] Example: Refer to Figure 1-7 A battery module unit for a new energy vehicle comprises a unit battery 1, a side periphery of the unit battery 1 is covered with a side pressure plate frame 2, a pressure isolation bottom bracket 3 is installed at the bottom of the side pressure plate frame 2, a battery module bottom guard frame 4 is fixedly installed on the bottom surface of the pressure isolation bottom bracket 3, a battery module bottom guard plate 5 is fixedly installed on the bottom of the battery module bottom guard frame 4, an energy absorbing separation fence 6 is fixedly arranged on the inner side of the battery module bottom guard frame 4, and a separation unit of the energy absorbing separation fence 6 is provided with a fixed connection with the bottom surface of the pressure isolation bottom bracket 3. The energy absorbing longitudinal shell plate 7 is connected to the energy absorbing longitudinal shell plate 7, and the other side of the energy absorbing longitudinal shell plate 7 is fixedly installed with the first collapsing energy absorbing plate frame 8, the second collapsing energy absorbing plate frame 9 and the energy absorbing longitudinal tube 12. The bottom of the energy absorbing longitudinal tube 12, the first collapsing energy absorbing plate frame 8 and the second collapsing energy absorbing plate frame 9 are fixedly installed with the energy absorbing structure support ball 21, the energy absorbing side tube 10 and the energy absorbing end tube 11. The energy absorbing side tube 10 and the energy absorbing end tube 11 are fixedly installed with the energy absorbing bucket sleeve 13 at one end away from the energy absorbing structure support ball 21, and the other end of the energy absorbing bucket sleeve 13 is fixedly installed with the energy absorbing circular plate shell 14.

[0030] In the present invention, the energy absorbing longitudinal shell plate 7 comprises an energy absorbing shell plate side frame sleeve 701 and an energy absorbing shell plate panel 702, and the energy absorbing shell plate panel 702 is fixedly mounted on the upper wall and the lower wall inside the energy absorbing shell plate side frame sleeve 701;

[0031] More specifically, by arranging the energy absorbing shell plate panels 702 fixedly installed on the upper and lower walls on the inner side of the energy absorbing shell plate side frame sleeve 701, the energy absorbing shell plate panels 702 can be close to each other when subjected to longitudinal compression, thereby providing protection against crushing energy absorption, and its larger plane also prevents the impact range from being too small, thereby protecting the battery structure.

[0032] In the present invention, the first collapse energy absorbing plate frame 8 comprises a first energy absorbing longitudinal plate 801, a wide-diameter energy absorbing through hole 802, a narrow-diameter energy absorbing through hole 803 and a first energy absorbing side arc groove 804. The wide-diameter energy absorbing through hole 802 and the narrow-diameter energy absorbing through hole 803 are opened through the plate surface of the first energy absorbing longitudinal plate 801, and the diameter of the wide-diameter energy absorbing through hole 802 is larger than the diameter of the narrow-diameter energy absorbing through hole 803. The wide-diameter energy absorbing through hole 802 and the narrow-diameter energy absorbing through hole 803 are respectively located at the center and four corners of the plate body of the first energy absorbing longitudinal plate 801. The first energy absorbing side arc groove 804 is opened at the first energy absorbing longitudinal plate 801. The second energy absorbing plate frame 9 includes a second energy absorbing longitudinal plate 901, an energy absorbing through transverse groove 902 and a second energy absorbing side arc groove 903, the second energy absorbing longitudinal plate 901 is opened through the plate surface of the second energy absorbing longitudinal plate 901, the second energy absorbing side arc groove 903 is opened on the side of the second energy absorbing longitudinal plate 901, and the first energy absorbing longitudinal plate 801 and the second energy absorbing longitudinal plate 901 are fixedly connected to the surface of the energy absorbing longitudinal tube 12, and the first energy absorbing longitudinal plate 801 is located on both sides of the energy absorbing longitudinal tube 12, and the second energy absorbing longitudinal plate 901 is located on the front and rear sides of the energy absorbing longitudinal tube 12;

[0033] More specifically, a first energy absorbing longitudinal plate 801 is provided with wide-diameter energy absorbing through holes 802 and narrow-diameter energy absorbing through holes 803 on its surface, and a second energy absorbing longitudinal plate 901 is provided with an energy absorbing through transverse groove 902 on its surface, and a first energy absorbing side arc groove 804 and a second energy absorbing side arc groove 903 are respectively provided on the sides of the first energy absorbing longitudinal plate 801 and the second energy absorbing longitudinal plate 901, so that when the first energy absorbing longitudinal plate 801 and the second energy absorbing longitudinal plate 901 are subjected to longitudinal force, they can effectively collapse and deform, thereby absorbing kinetic energy, and providing strong protection for the battery module unit on the top.

[0034] In the present invention, the energy absorbing structure support ball 21 is a spherical structure, and the top and bottom of the energy absorbing structure support ball 21 are connected to the energy absorbing longitudinal tube 12 and the energy absorbing longitudinal shell plate 7 connected to the pressure isolation bottom bracket 3 and the battery module bottom guard plate 5; the energy absorbing side tube 10 is distributed on the left and right sides of the energy absorbing structure support ball 21, and the energy absorbing end tube 11 is distributed on the front and rear sides of the energy absorbing structure support ball 21;

[0035] More specifically, the energy absorbing structure support ball 21 is set as a spherical structure as the center of the energy absorbing structure, so that when the bottom is hit and squeezed, the stress can be quickly dispersed, and the side can also collapse to absorb kinetic energy, thereby improving the protection effect.

[0036] In the present invention, the energy absorbing circular plate shell 14 includes an energy absorbing circular hoop ring 1401 and an energy absorbing circular plate 1402, and the energy absorbing circular plate 1402 is fixedly installed on the wall along the inner circle of the energy absorbing circular hoop ring 1401; the energy absorbing bucket sleeve 13 is fixedly connected to the energy absorbing circular hoop ring 1401, and the energy absorbing bucket sleeve 13 is a circular bucket-shaped structure whose end close to the energy absorbing circular hoop ring 1401 is larger than the other end;

[0037] More specifically, an energy absorbing circular plate 1402 is fixedly installed on the wall of the inner circle of the energy absorbing circular hoop 1401 to form a lateral energy absorbing contact structure. When under pressure, the two energy absorbing circular plates 1402 along the inner wall of the energy absorbing circular hoop 1401 collapse, thereby playing the role of energy absorption and protection.

[0038] In the present invention, the battery module bottom guard plate 5 includes a bottom plate body 501 and anti-skid grooves 502, the number of anti-skid grooves 502 is multiple and equidistantly and parallelly opened on the bottom surface of the bottom plate body 501; the top surface and bottom surface of the energy-absorbing separation fence 6 are respectively fixedly connected to the pressure isolation bottom bracket 3 and the battery module bottom guard plate 5, the energy-absorbing separation fence 6 includes a longitudinal bar 601 and a transverse bar 602, the end of the transverse bar 602 is fixedly connected to the side surface of the longitudinal bar 601, and the longitudinal bar 601 and the transverse bar 602 divide the battery module bottom guard frame 4 into a plurality of rectangular frame spaces;

[0039] More specifically, a plurality of anti-skid grooves 502 are arranged equidistantly and parallely on the bottom surface of the base plate body 501, so that the bottom is not easily slipped or misplaced when assembled at the bottom of the car, thereby improving the efficiency of the assembly operation. While the longitudinal bars 601 and the transverse bars 602 are arranged as partition structures, they can also collapse and absorb energy in the longitudinal direction, thereby improving their safety, and also providing transverse connections, so that the strength and stability of the structure can be enhanced.

[0040] In the present invention, the unit battery 1 includes a battery body 101 and a battery cell 102, and the battery cell 102 is arranged on the top of the battery body 101; the side surrounding pressure plate frame 2 includes a pressure frame plate 201, a side pressure plate 202, an assembly screw hole 203, an installation buckle 204 and a flat head bolt 205, the assembly screw hole 203 is opened on the surface of the pressure frame plate 201 and the side pressure plate 202, and the installation buckle 204 assembles and fixes the pressure frame plate 201 and the side pressure plate 202 through the flat head bolt 205;

[0041] More specifically, the mounting clip 204 assembles the pressure frame plate 201 and the side pressure plate 202 through the flat head bolts 205, which greatly avoids the situation where the battery is pressed by external force in the event of an accident.

[0042] In the present invention, a cell isolation layer film sleeve 15, an isolation enclosure 16 and an isolation side plate 17 are provided between the unit battery 1 and the side enclosure pressure plate frame 2. The isolation enclosure 16 and the isolation side plate 17 are arranged outside the cell isolation layer film sleeve 15, and the edge of the surface of the isolation side plate 17 is provided with a mounting groove, and a push-button strip is fixedly installed on the side end of the isolation enclosure 16, and the isolation side plate 17 is plugged with the push-button strip of the isolation enclosure 16 through the mounting groove;

[0043] More specifically, the installation grooves on the surface of the isolation side panels 17 cooperate with the push-button strips of the isolation enclosure 16 to facilitate the connection of the longitudinal position during assembly, thereby avoiding the inconvenience of assembly caused by longitudinal misalignment between structures.

[0044] In the present invention, a module top shell 19 and a cell connection mechanism 18 are provided on the top of the unit battery 1. The module top shell 19 is located above the cell connection mechanism 18, and the module top shell 19 is installed on the top of the side pressure plate frame;

[0045] More specifically, a module top shell 19 is installed on the top of the side pressure plate frame to form an outer shell structure of the battery module unit, providing packaging and integration of the entire battery module unit.

[0046] In the present invention, a heat-conducting bottom plate 20 is provided between the unit battery 1 and the pressure-isolating bottom bracket 3; the cell connection mechanism 18 includes a cell connection substrate 1801, a cell connection contact 1803 and a wire 1802, the wire 1802 is provided on the top surface of the cell connection substrate 1801, and the cell connection contact 1803 is provided on the bottom of the cell connection substrate 1801;

[0047] More specifically, a heat-conducting bottom plate 20 is provided to provide bottom heat dissipation for the battery pack unit, and the provision of the battery cell connection contacts 1803 and the wires 1802 provides support for series connection between the individual batteries.

[0048] Working principle: When the bottom of the entire battery module unit is subjected to impact or puncture impact, the energy-absorbing longitudinal shell plate 7 provides contact and barrier, so that the first collapsed energy-absorbing plate frame 8 and the second collapsed energy-absorbing plate frame 9 can quickly collapse and deform through the hole groove structure opened therein, thereby absorbing a large amount of kinetic energy, and the energy-absorbing structure support ball 21 can also transfer the non-vertical impact energy to the side, so that the energy-absorbing side tube 10 and the energy-absorbing end tube 11 can touch the energy-absorbing bucket sleeve 13 and the energy-absorbing circular plate shell 14 at their ends, and then through the hollow energy-absorbing side tube 10 and the energy-absorbing end tube 11 collapse and deform, it can also provide a large degree of kinetic energy absorption and buffering, and the energy-absorbing longitudinal shell plate 7, the energy-absorbing bucket sleeve 13 and the energy-absorbing circular plate shell 14 can also deform rapidly when under pressure, and absorb and buffer the bearing kinetic energy, thereby greatly alleviating and dispersing the impact received by the unit battery 1, and realizing energy absorption protection for the entire battery module.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery module unit for a new energy vehicle, comprising a unit battery (1), characterized in that: The side periphery of the unit battery (1) is covered with a side pressure plate frame (2), the bottom of the side pressure plate frame (2) is installed with a pressure isolation bottom bracket (3), the bottom surface of the pressure isolation bottom bracket (3) is fixedly installed with a battery module bottom protection frame (4), the bottom of the battery module bottom protection frame (4) is fixedly installed with a battery module bottom protection plate (5), the inner side of the battery module bottom protection frame (4) is fixedly provided with an energy absorbing partition frame (6), and the partition of the energy absorbing partition frame (6) is An energy absorbing longitudinal shell plate (7) fixedly connected to the bottom surface of the pressure isolation bottom bracket (3) is arranged in the unit, and a first collapsing energy absorbing plate frame (8), a second collapsing energy absorbing plate frame (9) and an energy absorbing longitudinal tube (12) are fixedly installed on the other surface of the energy absorbing longitudinal shell plate (7), and an energy absorbing structural support ball (21), an energy absorbing side tube (10) and an energy absorbing end tube (11) are fixedly installed at the bottom of the energy absorbing longitudinal tube (12), the first collapsing energy absorbing plate frame (8) and the second collapsing energy absorbing plate frame (9), and the energy absorbing side tube (10) and the energy absorbing end tube (11) are fixedly installed at the bottom of the energy absorbing longitudinal tube (12), the first collapsing energy absorbing plate frame (8) and the second collapsing energy absorbing plate frame (9). The energy absorbing end tube (10) and the energy absorbing end tube (11) are both fixedly mounted with an energy absorbing bucket sleeve (13) at one end away from the energy absorbing structure support ball (21), and the other end of the energy absorbing bucket sleeve (13) is fixedly mounted with an energy absorbing circular plate shell (14); the energy absorbing longitudinal shell plate (7) comprises an energy absorbing shell plate side frame sleeve (701) and an energy absorbing shell plate panel (702), and the energy absorbing shell plate panel (702) is fixedly mounted on the upper edge wall and the lower edge wall on the inner side of the energy absorbing shell plate side frame sleeve (701); the energy absorbing structure support ball (2 1) is a spherical structure, and the top and bottom of the energy absorbing structure support ball (21) are both connected to energy absorbing longitudinal tubes (12) and energy absorbing longitudinal shell plates (7), the top energy absorbing longitudinal shell plates (7) are connected to the pressure isolation bottom bracket (3), and the bottom energy absorbing longitudinal shell plates (7) are connected to the battery module bottom guard plate (5); the energy absorbing side tubes (10) are distributed on the left and right sides of the energy absorbing structure support ball (21), and the energy absorbing end tubes (11) are distributed on the front and rear sides of the energy absorbing structure support ball (21).

2. A battery module unit for a new energy vehicle according to claim 1, characterized in that: The first crush energy absorbing plate frame (8) comprises a first energy absorbing longitudinal plate (801), a wide-diameter energy absorbing through hole (802), a narrow-diameter energy absorbing through hole (803) and a first energy absorbing side arc groove (804), wherein the wide-diameter energy absorbing through hole (802) and the narrow-diameter energy absorbing through hole (803) are opened through the plate surface of the first energy absorbing longitudinal plate (801), and the diameter of the wide-diameter energy absorbing through hole (802) is larger than the diameter of the narrow-diameter energy absorbing through hole (803), and the wide-diameter energy absorbing through hole (802) and the narrow-diameter energy absorbing through hole (803) are respectively located at the center and four corners of the plate body of the first energy absorbing longitudinal plate (801), and the first energy absorbing side arc groove (804) is opened on the first energy absorbing longitudinal plate (801). ) on the side; the second crush energy absorbing plate frame (9) comprises a second energy absorbing longitudinal plate (901), an energy absorbing through transverse groove (902) and a second energy absorbing side arc groove (903); the second energy absorbing longitudinal plate (901) is opened through the plate surface of the second energy absorbing longitudinal plate (901); the second energy absorbing side arc groove (903) is opened on the side of the second energy absorbing longitudinal plate (901); the first energy absorbing longitudinal plate (801) and the second energy absorbing longitudinal plate (901) are both fixedly connected to the surface of the energy absorbing longitudinal tube (12); the first energy absorbing longitudinal plate (801) is located on both sides of the energy absorbing longitudinal tube (12); and the second energy absorbing longitudinal plate (901) is located on the front and rear sides of the energy absorbing longitudinal tube (12).

3. A battery module unit for a new energy vehicle according to claim 1, characterized in that: The energy absorbing circular plate shell (14) comprises an energy absorbing circular hoop ring (1401) and an energy absorbing circular plate (1402), wherein the energy absorbing circular plate (1402) is fixedly mounted on the wall along the inner circle of the energy absorbing circular hoop ring (1401); the energy absorbing bucket sleeve (13) is fixedly connected to the energy absorbing circular hoop ring (1401), and the energy absorbing bucket sleeve (13) is a circular bucket-shaped structure with one end close to the energy absorbing circular hoop ring (1401) being larger than the other end.

4. A battery module unit for a new energy vehicle according to claim 1, characterized in that: The battery module bottom guard plate (5) comprises a bottom plate body (501) and anti-skid grooves (502), wherein the anti-skid grooves (502) are multiple and are equidistantly and parallelly arranged on the bottom surface of the bottom plate body (501); the top surface and the bottom surface of the energy-absorbing separation fence (6) are respectively fixedly connected to the pressure-isolating bottom bracket (3) and the battery module bottom guard plate (5); the energy-absorbing separation fence (6) comprises a longitudinal bar (601) and a transverse bar (602), wherein the end of the transverse bar (602) is fixedly connected to the side surface of the longitudinal bar (601); and the longitudinal bar (601) and the transverse bar (602) divide the interior of the battery module bottom guard frame (4) into a plurality of rectangular frame spaces.

5. A battery module unit for a new energy vehicle according to claim 1, characterized in that: The unit battery (1) comprises a battery body (101) and a battery cell (102), wherein the battery cell (102) is arranged on the top of the battery body (101); the side surrounding pressure plate frame (2) comprises a pressure frame plate (201), a side pressure plate (202), an assembly screw hole (203), an installation buckle (204) and a flat-head bolt (205), wherein the assembly screw hole (203) is formed on the surface of the pressure frame plate (201) and the side pressure plate (202), and the installation buckle (204) assembles and fixes the pressure frame plate (201) and the side pressure plate (202) through the flat-head bolt (205).

6. A battery module unit for a new energy vehicle according to claim 1, characterized in that: A cell isolation layer membrane sleeve (15), an isolation enclosure (16) and an isolation side plate (17) are provided between the unit battery (1) and the side enclosure pressure plate frame (2); the isolation enclosure (16) and the isolation side plate (17) are arranged outside the cell isolation layer membrane sleeve (15); an edge of the surface of the isolation side plate (17) is provided with a mounting groove; a push-button strip is fixedly installed at the side end of the isolation enclosure (16); and the isolation side plate (17) is plugged into the push-button strip of the isolation enclosure (16) through the mounting groove.

7. A battery module unit for a new energy vehicle according to claim 1, characterized in that: A module top shell (19) and a cell connection mechanism (18) are provided on the top of the unit battery (1); the module top shell (19) is located above the cell connection mechanism (18), and the module top shell (19) is mounted on the top of the side pressure plate frame.

8. A battery module unit for a new energy vehicle according to claim 7, characterized in that: A heat-conducting bottom plate (20) is provided between the unit battery (1) and the pressure-isolating bottom bracket (3); the battery cell connection mechanism (18) comprises a battery cell connection substrate (1801), a battery cell connection contact (1803) and a wire (1802); the wire (1802) is provided on the top surface of the battery cell connection substrate (1801), and the battery cell connection contact (1803) is provided on the bottom of the battery cell connection substrate (1801).

Images