New energy automobile battery pack fixing tray

Abstract

The invention relates to the technical field of automobile battery pack trays, in particular to a new energy automobile battery pack fixing tray. Comprising a frame; the frame is composed of four borders of an isosceles trapezoid structure, the four borders are welded and fixed after being in butt joint combination through a limiting mechanism, a U-shaped frame is fixedly installed at the rear end of the border located on the rear side, a bottom plate is welded and fixed to the lower end of the U-shaped frame and the lower end of the frame together, and a fixing mechanism used for fixing a battery pack is arranged in the frame; according to the invention, the fixing mechanism is used for carrying out primary reinforcement on the frame of the frame combination, then the locking part is used for carrying out secondary reinforcement on the frame of the frame combination, so that the structural strength of the frame of the frame combination is improved, the limiting mechanism is used for extruding and fixing the battery pack, and the limiting mechanism keeps a fixed state of the battery pack through the locking part; and the stability of the battery pack is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile battery pack trays, and in particular to a new energy automobile battery pack fixing tray. Background Art

[0002] The battery pack fixing tray is an important component in the battery system of electric vehicles. It not only carries the battery module, but also is responsible for protecting the battery from the external environment and ensuring that the battery remains stable during vehicle driving. The battery pack fixing tray includes a frame, a bottom plate and a cover plate. Partitions for separating battery packs are installed in the frame.

[0003] The frame is mainly composed of four frames connected to form a rectangular structure and then welded and fixed. The bottom plate is also installed at the lower end of the frame by welding, and the cover plate is fixed to the frame by bolts to facilitate disassembly and maintenance of the battery pack. In this way, when a part is damaged, only the corresponding frame needs to be replaced instead of replacing the entire frame, which reduces maintenance costs and time. The thickness and strength of different parts can be designed based on actual force analysis, which helps to achieve overall weight reduction without sacrificing structural safety.

[0004] However, the current battery pack tray has the following problems during use: 1. The existing frame is only fixed by welding. When it is subjected to external force during subsequent use, the stress is concentrated at the welding point, resulting in problems such as cracking of the weld or deformation of the frame, thereby weakening the overall strength and rigidity of the structure and increasing the possibility of accidents; 2. Usually when the cover is fixed to the frame, the upper part of the battery pack will be stuck in the groove on the cover to limit the movement of the battery pack, but it only relies on the cooperation between the cover and the battery pack to limit the movement. When encountering vibration or impact, the battery pack is prone to shaking, causing wear of the battery pack and damage to the battery pack electrodes, thereby affecting the service life of the battery pack. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides a new energy vehicle battery pack fixing tray to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: the embodiment of the present application provides a new energy vehicle battery pack fixing tray, including a frame; the frame is composed of four frames with an isosceles trapezoidal structure, and the four frames are connected and assembled through a limiting mechanism and then welded and fixed, and a U-shaped frame is fixedly installed at the rear end of the frame located on the rear side, and a bottom plate is welded and fixed to the lower end of the U-shaped frame and the frame, and a fixing mechanism for fixing the battery pack is arranged inside the frame.

[0007] The limiting mechanism includes a limiting block, and the left wall of the rear frame, the rear wall of the right frame, and the left and right side walls of the front frame are all fixedly installed with limiting blocks. The upper end of the frame and the upper end of the corresponding limiting block are jointly provided with a waist-shaped groove, and the three frames located on the left, rear and right sides are all provided with limiting grooves that cooperate with the corresponding limiting blocks.

[0008] The fixing mechanism includes a partition plate, and the partition plate is longitudinally installed in the frame. Baffles are evenly fixedly installed on the left and right sides of the partition plate from front to back. The rectangular space composed of the bottom plate, the baffle plate, the partition plate and the frame is used to place the battery pack, and the baffle plate is welded and fixed to the frame. An extrusion part for extruding and fixing the battery pack is provided in the rectangular space.

[0009] The frame, the U-shaped frame, the partition plate and the baffle plate are all cavity structures.

[0010] The frame is provided with a locking portion for reinforcing the connection strength between the frames and for limiting the movement of the extrusion portion to keep the extrusion portion fixed to the battery pack.

[0011] As a preferred embodiment, the extrusion part includes an extrusion block, and each of the four corner positions in the rectangular space formed by the bottom plate, the baffle plate, the partition plate and the frame is provided with an extrusion block. The extrusion block has a Y-shaped structure, and the straight sections of the extrusion block slide through the corresponding frame and the partition plate respectively. A driving member No. 1 for driving the corresponding extrusion block to move is commonly provided in the left side frame, the right side frame and the partition plate, a driving member No. 2 for driving the corresponding extrusion block to move is provided in the front side frame, and a driving member No. 3 for driving the corresponding extrusion block to move is provided in the rear side frame.

[0012] As a preferred embodiment, the locking part includes a connecting plate, a connecting plate is arranged in the waist-shaped groove, a rotating shaft that slides through the corresponding frame is fixedly installed at the lower end of the connecting plate, a circular shaft is also fixedly installed at the lower end of the connecting plate, a sleeve is slidably sleeved on the circular shaft, and the lower end of the sleeve slides through the corresponding limit block in turn to the corresponding frame, a No. 1 compression spring is fixedly installed between the lower end of the circular shaft and the inner wall of the sleeve, a circular groove is provided on the outer wall of the circular shaft, a plug rod is slidably installed in the circular groove through a No. 2 compression spring, a through hole that cooperates with the plug rod is provided on the sleeve, and positioning components are arranged at positions corresponding to the rotating shafts on the frame, each group of positioning components consists of two positioning holes that are symmetrical about the corresponding rotating shaft and pass through the corresponding frame, one of the positioning holes is located in the waist-shaped groove, and a positioning column that cooperates with the positioning hole is fixedly installed at the lower end of the connecting plate.

[0013] As a preferred solution, the No. 1 driving member includes a rectangular plate, and rectangular plates are evenly fixedly installed in the left frame and the right frame from front to back. A No. 1 shaft rod slides through the rectangular plates in the same frame together, and a No. 2 shaft rod is arranged in the partition plate. Both ends of the No. 2 shaft rod slide through the partition plate to the corresponding frame. A No. 1 guide column is fixedly installed at the lower end of the straight section of the extrusion block, and fixed plates corresponding to the baffles are fixedly installed on the No. 1 shaft rod and the No. 2 shaft rod. A No. 1 square plate is fixedly installed at the rear end of the fixed plate and below the No. 1 shaft rod. An inclined groove is opened on the No. 1 square plate, which is inclined from the front to the back to the side away from the corresponding No. 1 guide column, and the No. 1 guide column slides through the corresponding inclined groove.

[0014] As a preferred solution, the No. 2 driving member includes a pushing plate, which is movably installed in the frame on the front side, a pillar that slides through the corresponding frame is fixedly installed at the front end of the pushing plate, and the rear end of the pushing plate is in contact with the No. 1 shaft rod and the No. 2 shaft rod, and a limiting hole that cooperates with the corresponding two sleeves is provided at the upper end of the pushing plate, and a No. 2 square plate that corresponds to the extrusion block in the front frame is fixedly installed at the lower end of the pushing plate, and a No. 2 waist groove is provided on the No. 2 square plate, and a No. 2 guide column that slides through the No. 2 waist groove is fixedly installed at the lower end of the extrusion block in the front frame.

[0015] As a preferred solution, the No. 3 driving member includes a connecting plate, a connecting plate located below the rotating shaft is movably installed in the frame on the rear side, a No. 3 square plate corresponding to the extrusion block in the frame on the rear side is fixedly installed at the front end of the connecting plate, a No. 3 waist groove is opened on the No. 3 square plate, a No. 3 guide column sliding through the No. 3 waist groove is fixedly installed at the lower end of the extrusion block in the frame on the rear side, a connecting rod is rotatably installed at the rear end of the connecting plate through a torsion spring rod, and the rear end of the No. 2 shaft rod is in conflict with the connecting rod.

[0016] As a preferred solution, the three outer walls on the left side, right side and front side of the frame and the three outer walls on the left side, right side and rear side of the C-shaped frame are fixedly installed with a number of ear seats, the upper end of the frame and the upper end of the C-shaped frame are provided with a number of screw holes, and the lower end of the frame is provided with circular holes for installing corresponding guide pillars No. 1, No. 2 and No. 3.

[0017] As a preferred solution, a shaft column is fixedly mounted on one end of the baffle away from the partition plate, and one end of the shaft column away from the corresponding baffle slides through the corresponding frame.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: First, the fixing mechanism provided in the present invention reinforces the frame of the frame combination once, and then reinforces the frame of the frame combination for a second time through the locking part, so as to improve the structural strength of the frame of the frame combination, and the battery pack can be squeezed and fixed by the limiting mechanism, and the locking part enables the limiting mechanism to keep the battery pack in a fixed state, so as to improve the stability of the battery pack.

[0019] 2. The fixing mechanism provided in the present invention limits the frames to each other through the cooperation of the limit block and the limit groove, so as to reinforce the frame of the frame combination once, and the sleeve is passed through the corresponding limit block and the upper part of the frame to limit the movement of the corresponding two frames, thereby performing a second fixation on the frame combination, and then improving the structural strength of the frame through double reinforcement. In addition, the cooperation of the limit block and the limit groove facilitates the docking of the frame, and the sleeve is pulled out to contact with the corresponding frame so as to position the installation of the bottom plate, thereby improving the installation efficiency of the battery pack tray.

[0020] 3. The limiting mechanism provided in the present invention drives the corresponding extrusion blocks to extrude and fix the battery pack through the No. 1 driving member, the No. 2 driving member and the No. 3 driving member, and the sleeve is inserted into the corresponding limiting hole after passing through the limiting block and the upper part of the frame to limit the movement of the pushing plate, so that the extrusion block keeps fixing the battery pack, thereby ensuring the stability of the battery pack and extending its service life.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 for Figure 1 Schematic diagram of the second perspective structure.

[0025] Figure 3 It is a structural schematic diagram of the limiting mechanism of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0027] Figure 5 It is a schematic structural diagram of the extrusion portion of the present invention.

[0028] Figure 6 for Figure 5 A magnified view of the structure in Figure 2.

[0029] Figure 7 for Figure 5 Enlarged view of the structure at B in the figure.

[0030] Figure 8 for Figure 5 Enlarged view of the structure at position C in the figure.

[0031] Fig. 9 for Figure 5 Enlarged view of the structure at D in .

[0032] Fig.10 It is a cross-sectional view of the locking portion of the present invention.

[0033] Fig.11 It is a partial structural cross-sectional view of the third driving member of the present invention.

[0034] Figure numerals: 10, frame; 11, shaped frame; 12, ear seat; 13, bottom plate; 14, screw hole; 15, round hole; 2, limit mechanism; 20, limit block; 21, limit groove; 3, fixing mechanism; 30, partition plate; 31, baffle; 310, shaft column; 4, extrusion part; 40, extrusion block; 41, No. 1 driving member; 410, rectangular plate; 411, No. 1 shaft rod; 412, No. 2 shaft rod; 413, No. 1 guide column; 414, fixing plate; 415, No. 1 square plate; 416, inclined groove; 4 2. Driving member No. 2; 420. Pushing plate; 421. Support column; 422. Limiting hole; 423. Square plate No. 2; 424. Waist groove No. 2; 425. Guide column No. 2; 43. Driving member No. 3; 430. Connecting plate; 431. Square plate No. 3; 432. Waist groove No. 3; 433. Guide column No. 3; 434. Connecting rod; 5. Locking part; 50. Connecting plate; 51. Rotating shaft; 52. Round shaft; 53. Sleeve; 54. Compression spring No. 2; 55. Inserting rod; 56. Through hole; 57. Positioning hole; 58. Positioning column. DETAILED DESCRIPTION

[0035] 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 in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] like Figure 1 and Figure 2 As shown, a new energy vehicle battery pack fixing tray includes a frame 10; the frame 10 is composed of four frames in an isosceles trapezoidal structure, and the four frames are welded and fixed after being butt-jointed and assembled through a limiting mechanism 2, and a U-shaped frame 11 is fixedly installed at the rear end of the frame located on the rear side, and a bottom plate 13 is welded and fixed to the lower end of the U-shaped frame 11 and the frame 10, and a fixing mechanism 3 for fixing the battery pack is arranged inside the frame 10.

[0037] like Figure 1 and Figure 3 As shown, the limiting mechanism 2 includes a limiting block 20, and the limiting blocks 20 are fixedly installed on the left wall of the rear frame, the rear wall of the right frame, and the left and right side walls of the front frame. The upper ends of the frames and the corresponding upper ends of the limiting blocks 20 are jointly provided with waist-shaped grooves, and the three frames located on the left, rear and right sides are all provided with limiting grooves 21 that cooperate with the corresponding limiting blocks 20.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, the fixing mechanism 3 includes a partition plate 30, the partition plate 30 is longitudinally installed in the frame 10, and baffles 31 are evenly fixedly installed on the left and right sides of the partition plate 30 from front to back. The rectangular space composed of the bottom plate 13, the baffle 31, the partition plate 30 and the frame 10 is used to place the battery pack, and the baffle 31 is welded and fixed to the frame 10, and an extrusion part 4 for extruding and fixing the battery pack is provided in the rectangular space; the frame, the U-shaped frame 11, the partition plate 30 and the baffle 31 are all cavity structures.

[0039] like Figure 1 and Figure 4 As shown, the frame 10 is provided with a locking portion 5 for reinforcing the connection strength between the frames and for limiting the movement of the extrusion portion 4 to keep the extrusion portion 4 fixed to the battery pack.

[0040] like Figure 1 , Figure 5 and Figure 6 As shown, a shaft column 310 is fixedly mounted on one end of the baffle plate 31 away from the partition plate 30 , and an end of the shaft column 310 away from the corresponding baffle plate 31 slides through the corresponding frame.

[0041] During the specific work, the extrusion part 4 is manually installed on the corresponding frame 10 and the partition plate 30 first, and then the rear frame is docked with the left frame, and the limit block 20 on the rear frame is inserted into the limit groove 21 of the left frame to enhance the stability of the rear frame and the left frame after docking. Then, the right frame and the front frame are installed in turn, and the limit block 20 of the right frame is inserted into the limit groove 21 of the rear frame, and the two limit blocks 20 of the front frame are respectively inserted into the limit grooves 21 of the two frames on the left and right sides. Then, the joints of the assembled frame 10 are welded, so as to improve the strength of the frame 10 through the cooperation of the limit blocks 20 and the limit grooves 21 and the welding connection.

[0042] The base plate 13 is placed at the corresponding position of the C-shaped frame 11 and the frame 10, and fixed to the C-shaped frame 11 and the frame 10 by welding. Then the battery pack is placed in the rectangular space formed by the base plate 13, the baffle 31, the partition plate 30 and the frame 10. After all are placed, the battery pack is squeezed and fixed by the extrusion part 4, and the movement of the extrusion part 4 is limited by the locking part 5 and the strength of the connection between the frames is strengthened. Then, the control components and other parts for controlling the charging and discharging of the battery pack are installed in the C-shaped frame 11 and the frame 10, and then the existing cover plate is fixed to the upper end of the C-shaped frame 11 and the frame 10 by bolts, and the battery pack is limited again by the groove on the cover plate to ensure the stability of the battery pack.

[0043] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the extrusion portion 4 includes an extrusion block 40, and each of the four corner positions in the rectangular space formed by the bottom plate 13, the baffle plate 31, the partition plate 30 and the frame 10 is provided with an extrusion block 40. The extrusion block 40 is in a Y-shaped structure, and the straight sections of the extrusion block 40 slide through the corresponding frame 10 and the partition plate 30 respectively. A No. 1 driving member 41 for driving the corresponding extrusion block 40 to move is commonly provided in the left side frame, the right side frame and the partition plate 30, a No. 2 driving member 42 for driving the corresponding extrusion block 40 to move is provided in the front side frame, and a No. 3 driving member 43 for driving the corresponding extrusion block 40 to move is provided in the rear side frame.

[0044] like Figure 1 , Figure 3 , Figure 5 , Figure 7 and Fig.10 As shown, the locking portion 5 includes a connecting plate 50, a connecting plate 50 is arranged in the waist-shaped groove, and a rotating shaft 51 that slides through the corresponding frame is fixedly installed at the lower end of the connecting plate 50, and a circular shaft 52 is also fixedly installed at the lower end of the connecting plate 50, and a sleeve 53 is slidably sleeved on the circular shaft 52, and the lower end of the sleeve 53 slides through the corresponding limit block 20 in turn to the corresponding frame, and a No. 1 compression spring is fixedly installed between the lower end of the circular shaft 52 and the inner wall of the sleeve 53, and a circular groove is provided on the outer wall of the circular shaft 52, and a plug rod 55 is slidably installed in the circular groove through a No. 2 compression spring 54, and a through hole 56 that cooperates with the plug rod 55 is provided on the sleeve 53, and a positioning assembly is arranged at a position corresponding to the rotating shaft 51 on the frame 10, and each group of positioning assemblies consists of two positioning holes 57 that are symmetrical about the corresponding rotating shaft 51 and pass through the corresponding frame, one of which is located in the waist-shaped groove, and a positioning column 58 that cooperates with the positioning hole 57 is fixedly installed at the lower end of the connecting plate 50.

[0045] During specific operation, the two front connecting plates 50 and the connecting plate 50 on the right are manually pulled upward to disengage the sleeve 53 from the corresponding frame and the limit block 20, and then the connecting plate 50 is rotated to make the sleeve 53 contact the corresponding outer wall of the frame, and then the insertion rod 55 is pressed to disengage the through hole 56, and then the sleeve 53 is moved out of the lower end surface of the frame under the action of the No. 1 compression spring, and then the connecting plate 50 is moved downward, and the positioning column 58 is inserted into the corresponding positioning hole 57 to limit the rotation of the connecting plate 50, so that the sleeve 53 remains in contact with the corresponding side wall of the frame, and then the bottom plate 13 is placed on the frame 10 and positioned by the sleeve 53, and then the bottom plate 13 is fixed to the frame 10 and the U-shaped frame 11 by welding.

[0046] It should be noted that the insertion rod 55 is slidably installed in the circular groove through the No. 2 compression spring 54. When the insertion rod 55 is not pressed, the No. 2 compression spring 54 is in an extended state, so that the insertion rod 55 extends into the through hole 56 on the sleeve 53. When the sleeve 53 is brought into contact with the corresponding outer wall of the frame, the insertion rod 55 is pressed manually or with a tool (such as a thin rod with a diameter smaller than the through hole 56). When the insertion rod 55 is completely separated from the through hole 56, the No. 1 compression spring will automatically push the sleeve 53 and the round shaft 52. Relative sliding occurs (so there is no need to manually control the distance of pushing the insertion rod 55), so that the end of the sleeve 53 away from the circular shaft 52 exceeds the end face of the frame 10 that will contact the bottom plate 13. When the sleeve 53 needs to be reset, the sleeve 53 is manually pushed in the direction close to the circular shaft 52 until the end of the sleeve 53 contacts the connecting plate 50. At this time, the position of the insertion rod 55 corresponds to that of the through hole 56. Under the elastic force of the No. 2 compression spring 54, the insertion rod 55 is reinserted into the through hole 56.

[0047] It should also be noted that when installing the base plate 13, the frame 10 can be turned upside down first so that the lower end surface of the frame 10 is on the upper side. At this time, the end of the sleeve 53 away from the circular axis 52 is facing upward, so there is no need to use a No. 1 compression spring to support the frame 10 through the sleeve 53. Of course, the frame 10 can also be raised in advance by a pad to avoid directly supporting the frame 10 through the sleeve 53.

[0048] The battery pack is placed in a rectangular space formed by the bottom plate 13, the frame, the partition plate 30 and the baffle plate 31. After all of them are placed, the extrusion block 40 is driven manually by the No. 1 driving member 41, the No. 2 driving member 42 and the No. 3 driving member 43 to extrude and fix the battery pack. Then, the sleeve 53 is pressed manually to move the insertion rod 55 to the position of the through hole 56. Then, under the action of the No. 2 compression spring 54, the insertion rod 55 is inserted into the through hole 56 to shorten the distance between the lower end of the sleeve 53 and the connecting plate 50. Then, the connecting plate 50 is rotated to move the sleeve 53 to the top of the corresponding limit block 20. Then, the connecting plate 50 is moved downward so that the sleeve 53 passes through the limit block 20 and the upper part of the frame in turn and cooperates with the extrusion part 4 to keep the extrusion part 4 to extrude and fix the battery pack.

[0049] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the No. 1 driving member 41 includes a rectangular plate 410, and rectangular plates 410 are evenly fixedly installed in the left frame and the right frame from front to back. A No. 1 shaft rod 411 slides through the rectangular plates 410 in the same frame, and a No. 2 shaft rod 412 is arranged in the partition plate 30. Both ends of the No. 2 shaft rod 412 slide through the partition plate 30 to the corresponding frame, and a No. 1 guide column 413 is fixedly installed at the lower end of the straight section of the extrusion block 40. Fixed plates 414 corresponding to the baffle 31 are fixedly installed on the No. 1 shaft rod 411 and the No. 2 shaft rod 412, and a No. 1 square plate 415 is fixedly installed at the rear end of the fixed plate 414 and below the No. 1 shaft rod 411. The No. 1 square plate 415 is provided with an inclined groove 416 inclined from front to back to the side away from the corresponding No. 1 guide column 413, and the No. 1 guide column 413 slides through the corresponding inclined groove 416.

[0050] like Figure 1 , Figure 2 , Figure 5 , Figure 8 and Fig.10 As shown, the No. 2 driving member 42 includes a pushing plate 420, which is movably installed in the frame on the front side, and a pillar 421 that slides through the corresponding frame is fixedly installed at the front end of the pushing plate 420, and the rear end of the pushing plate 420 is in contact with the No. 1 shaft rod 411 and the No. 2 shaft rod 412. A limiting hole 422 that cooperates with the corresponding two sleeves 53 is provided at the upper end of the pushing plate 420, and a No. 2 square plate 423 that corresponds to the extrusion block 40 in the front side frame is fixedly installed at the lower end of the pushing plate 420, and a No. 2 waist groove 424 is provided on the No. 2 square plate 423, and a No. 2 guide column 425 that slides through the No. 2 waist groove 424 is fixedly installed at the lower end of the extrusion block 40 in the front side frame.

[0051] like Figure 5 , Fig. 9 and Fig.11 As shown, the No. 3 driving member 43 includes a connecting plate 430, which is movably installed in the frame on the rear side and is located below the rotating shaft 51. The front end of the connecting plate 430 is fixedly installed with a No. 3 square plate 431 which corresponds to the extrusion block 40 in the rear frame one by one. The No. 3 square plate 431 is provided with a No. 3 waist groove 432. The lower end of the extrusion block 40 in the rear frame is fixedly installed with a No. 3 guide column 433 which slides through the No. 3 waist groove 432. The rear end of the connecting plate 430 is rotatably installed with a connecting rod 434 through a torsion spring rod, and the rear end of the No. 2 shaft rod 412 is in conflict with the connecting rod 434.

[0052] like Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 8 and Fig. 9 As shown, the three outer walls on the left side, right side and front side of the frame 10 and the three outer walls on the left side, right side and rear side of the C-shaped frame 11 are fixedly installed with a plurality of ear seats 12, the upper end of the frame 10 and the upper end of the C-shaped frame 11 are provided with a plurality of screw holes 14, and the lower end of the frame 10 is provided with a circular hole 15 for installing the corresponding guide column No. 1 413, guide column No. 2 425 and guide column No. 3 433.

[0053] During specific operation, after the battery pack is placed, the pushing plate 420 is manually pushed backward through the pillar 421, and the pushing plate 420 drives the second square plate 423 to move backward synchronously, and the second square plate 423 drives the corresponding extrusion block 40 to squeeze the corresponding battery pack through the cooperation of the second waist groove 424 and the second guide column 425, and the movement of the pushing plate 420 will also conflict with the front ends of the first shaft rod 411 and the second shaft rod 412 to push the first shaft rod 411 and the second shaft rod 412 to move backward, so that the rear ends of the first shaft rod 411 and the second shaft rod 412 both conflict with the inner wall of the rear side frame, and the movement of the first shaft rod 411 and the second shaft rod 412 will push the first square plate 415 to move backward through the fixed plate 414, and the first square plate 415 will pass through the inclined groove The cooperation between 416 and the No. 1 guide column 413 drives the corresponding extrusion block 40 to squeeze the battery pack. In addition, the movement of the No. 2 shaft rod 412 will also conflict with the connecting rod 434 to push the rear end of the connecting rod 434 to rotate downward, and the connecting rod 434 pushes the connecting plate 430 to move forward, and the connecting plate 430 drives the No. 3 square plate 431 to move forward. The No. 3 square plate 431 drives the corresponding extrusion block 40 to squeeze the battery pack through the cooperation of the No. 3 waist groove 432 and the No. 3 guide column 433, and then the sleeve 53 passes through the corresponding limit block 20 and the upper part of the frame and is inserted into the corresponding limit hole 422 to limit the movement of the pushing plate 420, so that the extrusion block 40 keeps pushing the battery pack, thereby limiting the movement of the battery pack through the extrusion of the above-mentioned extrusion block 40, thereby ensuring the stability of the battery pack.

[0054] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0055] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy vehicle battery pack fixing tray, comprising a frame; characterized in that: The frame is composed of four frames in an isosceles trapezoidal structure, and the four frames are welded and fixed after being butt-jointed and assembled through a limiting mechanism. A U-shaped frame is fixedly installed at the rear end of the frame located at the rear side, and a bottom plate is welded and fixed to the lower end of the U-shaped frame and the frame. A fixing mechanism for fixing the battery pack is provided in the frame; wherein: The limiting mechanism includes a limiting block, and the limiting blocks are fixedly installed on the left side wall of the rear side frame, the rear side wall of the right side frame, and the left and right side walls of the front side frame. The upper end of the frame and the upper end of the corresponding limiting block are jointly provided with a waist-shaped groove, and the three frames located on the left side, the rear side, and the right side are all provided with limiting grooves that match the corresponding limiting blocks; The fixing mechanism includes a partition plate, the partition plate is longitudinally installed in the frame, and baffles are evenly fixed and installed on the left and right sides of the partition plate from front to back. The rectangular space composed of the bottom plate, the baffle plate, the partition plate and the frame is used to place the battery pack, and the baffle plate is welded and fixed to the frame, and an extrusion part for extruding and fixing the battery pack is provided in the rectangular space; The frame, the U-shaped frame, the partition plate and the baffle plate are all hollow structures; The frame is provided with a locking portion for reinforcing the connection strength between the frames and for limiting the movement of the extrusion portion to keep the extrusion portion fixed to the battery pack.

2. A new energy vehicle battery pack fixing tray according to claim 1, characterized in that: The extrusion part includes an extrusion block. An extrusion block is arranged at each of the four corner positions in the rectangular space formed by the bottom plate, the baffle plate, the partition plate and the frame. The extrusion block has a Y-shaped structure. The straight segments of the extrusion block slide through the corresponding frame and the partition plate respectively. A driving member No. 1 for driving the corresponding extrusion block to move is commonly arranged in the left side frame, the right side frame and the partition plate, a driving member No. 2 for driving the corresponding extrusion block to move is arranged in the front side frame, and a driving member No. 3 for driving the corresponding extrusion block to move is arranged in the rear side frame.

3. A new energy vehicle battery pack fixing tray according to claim 1, characterized in that: The locking part includes a connecting plate, a connecting plate is arranged in the waist-shaped groove, a rotating shaft that slides through the corresponding frame is fixedly installed at the lower end of the connecting plate, a round shaft is also fixedly installed at the lower end of the connecting plate, a sleeve is slidably sleeved on the round shaft, and the lower end of the sleeve slides through the corresponding limit block in turn to the corresponding frame, a No. 1 compression spring is fixedly installed between the lower end of the round shaft and the inner wall of the sleeve, a circular groove is provided on the outer wall of the circular shaft, a plug rod is slidably installed in the circular groove through a No. 2 compression spring, a through hole that cooperates with the plug rod is provided on the sleeve, and positioning components are arranged at positions corresponding to the rotating shafts on the frame, each group of positioning components consists of two positioning holes that are symmetrical about the corresponding rotating shaft and pass through the corresponding frame, one of the positioning holes is located in the waist-shaped groove, and a positioning column that cooperates with the positioning hole is fixedly installed at the lower end of the connecting plate.

4. A new energy vehicle battery pack fixing tray according to claim 2, characterized in that: The No. 1 driving member includes a rectangular plate, and rectangular plates are evenly fixedly installed in the left frame and the right frame from front to back. A No. 1 shaft rod slides through the rectangular plates in the same frame together, and a No. 2 shaft rod is arranged in the partition plate. Both ends of the No. 2 shaft rod slide through the partition plate to the corresponding frame. A No. 1 guide column is fixedly installed at the lower end of the straight section of the extrusion block, and fixed plates corresponding to the baffle plates are fixedly installed on the No. 1 shaft rod and the No. 2 shaft rod. A No. 1 square plate is fixedly installed at the rear end of the fixed plate and below the No. 1 shaft rod. An inclined groove is opened on the No. 1 square plate, which is inclined from the front to the back to the side away from the corresponding No. 1 guide column, and the No. 1 guide column slides through the corresponding inclined groove.

5. A new energy vehicle battery pack fixing tray according to claim 4, characterized in that: The No. 2 driving member includes a pushing plate, which is movably installed in the frame on the front side, a pillar that slides through the corresponding frame is fixedly installed at the front end of the pushing plate, and the rear end of the pushing plate is in contact with the No. 1 shaft rod and the No. 2 shaft rod. A limiting hole that cooperates with the corresponding two sleeves is provided at the upper end of the pushing plate, and a No. 2 square plate corresponding to the extrusion block in the front side frame is fixedly installed at the lower end of the pushing plate, and a No. 2 waist groove is provided on the No. 2 square plate, and a No. 2 guide column that slides through the No. 2 waist groove is fixedly installed at the lower end of the extrusion block in the front side frame.

6. A new energy vehicle battery pack fixing tray according to claim 5, characterized in that: The No. 3 driving component includes a connecting plate, a connecting plate located below the rotating shaft is movably installed in the frame on the rear side, a No. 3 square plate corresponding to the extrusion block in the frame on the rear side is fixedly installed at the front end of the connecting plate, a No. 3 waist groove is opened on the No. 3 square plate, a No. 3 guide column sliding through the No. 3 waist groove is fixedly installed at the lower end of the extrusion block in the frame on the rear side, a connecting rod is rotatably installed at the rear end of the connecting plate through a torsion spring rod, and the rear end of the No. 2 shaft rod is in conflict with the connecting rod.

7. A new energy vehicle battery pack fixing tray according to claim 6, characterized in that: The three outer walls on the left side, right side and front side of the frame and the three outer walls on the left side, right side and rear side of the C-shaped frame are fixedly installed with a number of ear seats, the upper end of the frame and the upper end of the C-shaped frame are provided with a number of screw holes, and the lower end of the frame is provided with round holes for installing corresponding guide pillars No. 1, No. 2 and No.

3.

8. A new energy vehicle battery pack fixing tray according to claim 1, characterized in that: An end of the baffle away from the partition plate is fixedly mounted with a shaft column, and an end of the shaft column away from the corresponding baffle plate slides and penetrates into the corresponding frame.

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