Box body structure of CTP battery pack

Abstract

The utility model belongs to the technical field of CTP batteries, and discloses a box body structure of a CTP battery pack, which comprises a box body, the box body comprises a bottom plate, an outer frame body welded on the bottom plate and a cover plate arranged on the outer frame body, a reinforcing plate is arranged in the middle of the upper surface of the bottom plate, two ends of the reinforcing plate respectively abut against two side walls of the outer frame body, and the cover plate is arranged on the outer frame body. The reinforcing plate is connected with the outer frame body through the mounting plate; a plurality of clamping assemblies extending in the length direction of the reinforcing plate are installed in the reinforcing plate, containing grooves used for allowing battery cells to be inserted are formed in the portions, on the two sides of each clamping assembly, of the bottom plate, and the battery cells on the two sides of each clamping assembly are clamped into the containing grooves through the clamping assemblies. According to the utility model, the fixing effect on the battery cell can be greatly improved, and the battery cell is prevented from being misplaced in the use process; the box body can be reinforced, the overall rigid strength of the box body is enhanced, and the risk of deformation of the box body in the using process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to CTP battery technical field, concretely relates to a box structure of CTP battery package. BACKGROUND

[0002] CTP battery package technology is a kind of power battery integration technology, and its core feature is to skip the standardization module link, directly integrate battery cell on battery package, and then install on the vehicle, which aims at improving energy density, reducing cost and improving production efficiency.

[0003] At present, when battery cell is integrated into battery package, multiple stacked battery cells are generally pulled tight by rolling belt structure, but due to the relatively simple structure of battery package, the overall rigidity of the battery package is relatively poor, and the inertial force under various working conditions during vehicle driving may cause misalignment of each battery cell, thereby adversely affecting the battery package, and the overall strength of the existing box is not high, and deformation may occur during use.

[0004] In summary, ensuring the stability of the battery package during use and enhancing the overall rigidity of the box have become urgent problems to be solved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a box structure of CTP battery package to solve the above problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A box structure of CTP battery package, comprising a box, the box comprising a bottom plate, an outer frame welded on the bottom plate and a cover plate installed on the outer frame, a reinforcing plate is arranged on the upper surface of the bottom plate, the two ends of the reinforcing plate abut against the two side walls of the outer frame, and the reinforcing plate is connected with the outer frame through a mounting plate; a plurality of clamping assemblies extending along the length direction of the reinforcing plate are installed inside the reinforcing plate, the bottom plate on both sides of each clamping assembly is provided with a receiving groove for inserting battery cell, so as to clamp the battery cells on both sides of each clamping assembly in the receiving groove.

[0008] As one preferred technical scheme in the utility model, the clamping assembly comprises a U-shaped plate, a connecting plate and a clamping plate, a slot is formed in each of the reinforcing plates corresponding to the clamping assembly, the U-shaped plate is fixedly connected in the slot, clamping plates are arranged on both sides of the U-shaped plate, and the two clamping plates are arranged corresponding to the battery cells on both sides of the clamping assembly; the connecting plate is elastically slid on both side plates of the U-shaped plate, and one end of the connecting plate is connected with the clamping plate; a pushing piece is arranged in the U-shaped plate above the two connecting plates, an adjusting piece is arranged on the reinforcing plate, the upper part of the adjusting piece extends above the reinforcing plate, the lower part of the adjusting piece extends into the reinforcing plate and is connected with the pushing piece, the pushing piece is driven to slide downward by the adjusting piece, and the two connecting plates are driven to move away from each other by the pushing piece.

[0009] As one preferred technical scheme in the utility model, the adjusting piece comprises a threaded rod and a knob, the knob is located above the reinforcing plate, the threaded rod is vertically arranged and rotationally connected with the reinforcing plate and the U-shaped plate; the pushing piece comprises a threaded block and a first triangular plate, the middle part of the threaded block is threadedly connected with the threaded block, first triangular plates are fixedly connected to both sides of the threaded block, and the surfaces away from each other of the two first triangular plates are inclined surfaces in contact with the other end surfaces of the connecting plates.

[0010] As one preferred technical scheme in the utility model, the other end of the connecting plate is fixedly connected with a second triangular plate, and the surfaces close to each other of the two second triangular plates are inclined surfaces in contact with the surfaces of the first triangular plates.

[0011] As one preferred technical scheme in the utility model, the lower end of the second triangular plate is fixedly connected with a rectangular plate, and first springs are arranged between the two side plates of the U-shaped plate and the respective corresponding rectangular plates.

[0012] As one preferred technical scheme in the utility model, the two sides of the end part of the reinforcing plate are provided with jacks, and the ends, away from the reinforcing plate, of the jacks abut against the inner wall of the frame body.

[0013] As one preferred technical scheme in the utility model, the other end of the jack is provided with a circular hole, a limiting rod is slidably connected in the circular hole, and a second spring is arranged between the limiting rod and the inner side surface of the circular hole; limiting holes are formed in the two sides of the end part of the reinforcing plate, and the limiting rod is elastically inserted into the limiting hole; the end, away from the circular hole, of the limiting rod is a spherical head, the limiting hole is a spherical groove, and the depth of the spherical groove is smaller than the diameter of the spherical head.

[0014] As one preferred technical scheme in the utility model, guide grooves are formed in the two sides of the end part of the reinforcing plate, the width of the guide groove is not less than the diameter of the limiting rod, and the limiting hole is formed on the inner side surface of the guide groove; the other end of the jack abuts against the reinforcing plate.

[0015] Beneficial effects: the utility model discloses a bottom board is all set up with the accommodation groove for splicing electric core, then through the clamping assembly and the accommodation groove cooperation to the electric core clamping and fixing, can greatly promote the fixed effect of electric core, avoid the electric core in the use process and appear the misplacement. The utility model discloses the installation of reinforcing plate and mounting plate in the middle part of the box, can reinforce the box, enhance the overall rigidity of the box, reduce the risk of deformation of the box in the use process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is structural schematic diagram when the utility model does not install the cover plate;

[0017] Figure 2 It is plan view when the utility model does not install the cover plate;

[0018] Figure 3 It is structural schematic diagram when the utility model does not install the cover plate in the box;

[0019] Figure 4 It is assembly schematic diagram between reinforcing plate, mounting plate and clamping assembly in the utility model;

[0020] Figure 5 It is structural schematic diagram of clamping assembly in the utility model;

[0021] Figure 6 It is structural schematic diagram of the ejector rod in the utility model;

[0022] Figure 7 It is sectional view effect drawing of the ejector rod in the utility model.

[0023] In the drawing: 1-bottom plate;2-outer frame body;3-accommodation groove;4-electric core;5-reinforcing plate;6-mounting plate;7-U-shaped plate;8-threaded rod;9-knob;10-threaded block;11-first triangular plate;12-second triangular plate;13-rectangular plate;14-first spring;15-connecting plate;16-clamping plate;17-guide slot;18-limiting hole;19-ejector rod;20-limiting rod;21-round hole;22-second spring. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the utility model will be simply introduced with the description of embodiment or prior art and accompanying drawings, and obviously, the following description of the structure of the accompanying drawings is only some embodiments of the utility model, and for ordinary skilled in the art, other accompanying drawings can be obtained without creative labor according to these accompanying drawings. It needs to be explained that the description of these embodiment modes is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0025] Embodiment:

[0026] As Figures 1-7 shown, the embodiment provides a kind of box structure of CTP battery pack, including box, box includes bottom plate 1, outer frame 2 welded on bottom plate 1 and cover plate installed on outer frame 2, the middle part of the upper surface of the bottom plate 1 is provided with reinforcing plate 5, the both ends of reinforcing plate 5 are respectively abutted to the two side walls of outer frame 2, and reinforcing plate 5 is connected with outer frame 2 by mounting plate 6, reinforcing plate 5 and mounting plate 6 can be directly integrated, can also be connected by bolt, not specifically limited, while mounting plate 6 and outer frame 2 are preferably connected by bolt, guarantee the stability of reinforcing plate 5 and mounting plate 6, reinforcing plate 5 and mounting plate 6 can be reinforced simultaneously by reinforcing plate 5 and mounting plate 6, enhance the overall rigidity of box, reduce the risk of deformation of box in use process.

[0027] Further refinement, the inside of the reinforcing plate 5 is provided with a plurality of clamping assemblies extending along the length direction of reinforcing plate 5, the bottom plate 1 of both sides of each clamping assembly is provided with containing groove 3 for inserting battery cell 4, so as to clamp the battery cell 4 on both sides of each clamping assembly in containing groove 3 by each clamping assembly, then the battery cell 4 is clamped and fixed by clamping assembly and containing groove 3, which can greatly improve the fixing effect of battery cell, avoid the misplacement of battery cell in use process.

[0028] The utility model discloses a containing groove 3 for inserting battery cell 4 is set on the bottom plate 1, then the battery cell 4 is clamped and fixed by clamping assembly and containing groove 3, which can greatly improve the fixing effect of battery cell, avoid the misplacement of battery cell in use process. Reinforcing plate 5 and mounting plate 6 in the middle part of box can reinforce the box, enhance the overall rigidity of box, reduce the risk of deformation of box in use process.

[0029] As a preferred embodiment in the embodiment, it needs to be explained further that the clamping assembly comprises the U-shaped plate 7, the connecting plate 15 and the clamping plate 16, the inside of the reinforcing plate 5 corresponding to each clamping assembly is provided with a notch penetrating through both sides, the notch is fixedly connected with the U-shaped plate 7, both sides of the U-shaped plate 7 are provided with the clamping plate 16, the two clamping plates 16 are correspondingly arranged on both sides of the clamping assembly and corresponding to the battery cell 4, and the lower end of the clamping plate 16 is arranged in the accommodating groove 3; the connecting plate 15 is elastically and slidably arranged on both side plates of the U-shaped plate 7, one end of the connecting plate 15 is connected with the clamping plate 16, so that the clamping plate 16 can be driven by the connecting plate 15 to move close to or away from the battery cell 4; the U-shaped plate 7 above the two connecting plates 15 is provided with the pushing piece, the reinforcing plate 5 is provided with the adjusting piece, the upper part of the adjusting piece extends above the reinforcing plate 5, the lower part of the adjusting piece extends into the reinforcing plate 5 and is connected with the pushing piece, so as to drive the pushing piece to slide downward through the adjusting piece, and the two connecting plates 15 are driven to move away from each other through the downward sliding of the pushing piece, so as to clamp the battery cell 4, and the reverse operation can make the connecting plate 15 reset under the action of the elastic force and release the clamping of the battery cell 4.

[0030] As a preferred embodiment in the embodiment, it needs to be explained further that the adjusting piece comprises the threaded rod 8 and the knob 9, the knob 9 is located above the reinforcing plate 5, the threaded rod 8 is vertically arranged and rotationally connected with the reinforcing plate 5 and the U-shaped plate 7, so as to conveniently drive the threaded rod 8 to rotate by controlling the knob 9; the pushing piece comprises the threaded block 10 and the first triangular plate 11, the middle part of the threaded block 10 is threadedly connected with the threaded block 10, both sides of the threaded block 10 are fixedly connected with the first triangular plate 11, one side of the two first triangular plates 11 away from each other is a bevel surface in contact with the other end surface of the connecting plate 15, the knob 9 is rotated to drive the threaded rod 8 to rotate, the threaded rod 8 is rotated to drive the threaded block 10 and the first triangular plate 11 to act, and because the first triangular plate 11 is in surface contact with the connecting plate 15, the threaded block 10 and the first triangular plate 11 can only vertically slide, and then the connecting plate 15 is slid by the bevel surface of the first triangular plate 11, so as to drive the clamping plate 16 to clamp the battery cell 4.

[0031] As a preferred embodiment in the embodiment, it needs to be explained further that the other end of the connecting plate 15 is fixedly connected with the second triangular plate 12, one side of the two second triangular plates 12 close to each other is a bevel surface in surface contact with the first triangular plate 11, and the bevel surface of the second triangular plate 12 can just fit with the bevel surface of the first triangular plate 11, so that they can limit each other.

[0032] As a preferred embodiment in the embodiment, it needs to be explained further that the lower end of the second triangular plate 12 is fixedly connected with a rectangular plate 13, and the first spring 14 is connected between the two side plates of the U-shaped plate 7 and the corresponding rectangular plate 13, so that when the two second triangular plates 12 move away from each other, the first spring 14 can be compressed, and when the contact with the clamping of the battery cell 4 is needed, the threaded block 10 rises, and the elastic force of the first spring 14 can push the rectangular plate 13 to reset, and the rectangular plate 13 drives the second triangular plate 12, the connecting plate 15 and the clamping plate 16 to reset.

[0033] As a preferred embodiment in the embodiment, it needs to be explained further that the two sides of the end of the reinforcing plate 5 are both installed with the jacking rod 19, and the end of the jacking rod 19 away from the reinforcing plate 5 abuts against the inner wall of the outer frame 2, so that the rigidity of the box body can be further strengthened.

[0034] As a preferred embodiment in the embodiment, it needs to be explained further that the other end of the jacking rod 19 is provided with the circular hole 21, the limiting rod 20 is slidably connected in the circular hole 21, and the second spring 22 is connected between the limiting rod 20 and the inner side of the circular hole 21; the two sides of the end of the reinforcing plate 5 are both provided with the limiting hole 18, and the limiting rod 20 is elastically inserted into the limiting hole 18; the end of the limiting rod 20 away from the circular hole 21 is a spherical head, the limiting hole 18 is a spherical groove, and the depth of the spherical groove is less than the diameter of the spherical head, so that the elastic clamping of the limiting rod 20 in the limiting hole 18 can make the jacking rod 19 abut against the reinforcing plate 5 and the outer frame 2 as much as possible, and the rigidity can be further strengthened.

[0035] As a preferred embodiment in the embodiment, it needs to be explained further that the two sides of the end of the reinforcing plate 5 are both provided with the guide groove 17, the width of the guide groove 17 is not less than the diameter of the limiting rod 20, and the limiting hole 18 is provided on the inner side of the guide groove 17; the other end of the jacking rod 19 abuts against the reinforcing plate 5, and when the jacking rod 19 is installed, the guide groove 17 can guide the limiting rod 20, so that the limiting rod 20 can be more quickly aligned and inserted into the limiting hole 18.

[0036] Finally, it should be explained that the above only refers to the preferred embodiments of the utility model, and is not used for limiting the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A case structure of a CTP battery pack comprising a case including a bottom plate (1), an outer frame (2) welded to the bottom plate (1), and a cover plate installed on the outer frame (2), characterized in that, The middle part of the upper surface of the bottom plate (1) is provided with a reinforcing plate (5), the two ends of the reinforcing plate (5) abut against the two side walls of the outer frame body (2), and the reinforcing plate (5) is connected with the outer frame body (2) through a mounting plate (6); A plurality of clamping assemblies extending along the length direction of the reinforcing plate (5) are mounted in the reinforcing plate (5), and the bottom plate (1) on the two sides of each clamping assembly is provided with an accommodating groove (3) for inserting the battery cell (4).

2. The CTP battery pack case structure according to claim 1, characterized by, The clamping assembly comprises a U-shaped plate (7), a connecting plate (15) and a clamping plate (16), a slot is formed in the reinforcing plate (5) corresponding to each clamping assembly and extending through the two sides of the reinforcing plate (5), the U-shaped plate (7) is fixedly connected in the slot, the clamping plate (16) is arranged on the two sides of the U-shaped plate (7), and the two clamping plates (16) are arranged corresponding to the battery cells (4) on the two sides of the clamping assembly; the connecting plate (15) elastically slides on the two side plates of the U-shaped plate (7), and one end of the connecting plate (15) is connected with the clamping plate (16). A pushing piece is arranged in the U-shaped plate (7) above the two connecting plates (15), an adjusting piece is mounted on the reinforcing plate (5), the upper part of the adjusting piece extends above the reinforcing plate (5), the lower part of the adjusting piece extends into the reinforcing plate (5) and is connected with the pushing piece, the pushing piece is driven to slide downward by the adjusting piece, and the two connecting plates (15) are pushed to move away from each other by the downward sliding of the pushing piece.

3. The CTP battery pack case structure according to claim 2, characterized by, The adjusting piece comprises a threaded rod (8) and a knob (9), the knob (9) is located above the reinforcing plate (5), and the threaded rod (8) is vertically arranged and rotationally connected with the reinforcing plate (5) and the U-shaped plate (7); the pushing piece comprises a threaded block (10) and a first triangular plate (11), the middle part of the threaded block (10) is threadedly connected with the threaded block (10), the two sides of the threaded block (10) are fixedly connected with the first triangular plate (11), and the faces away from each other of the two first triangular plates (11) are inclined surfaces in contact with the other end faces of the connecting plates (15).

4. The CTP battery pack case structure according to claim 3, characterized by, The other end of the connecting plate (15) is fixedly connected with a second triangular plate (12), and the faces close to each other of the two second triangular plates (12) are inclined surfaces in contact with the faces of the first triangular plates (11).

5. The CTP battery pack case structure according to claim 4, characterized by, The lower end of the second triangular plate (12) is fixedly connected with a rectangular plate (13), and the two side plates of the U-shaped plate (7) and the respective corresponding rectangular plates (13) are connected with first springs (14).

6. The CTP battery pack case structure according to any one of claims 1-5, characterized in that, The two sides of the end part of the reinforcing plate (5) are provided with top rods (19), and one end of the top rod (19) away from the reinforcing plate (5) abuts against the inner wall of the outer frame body (2).

7. The CTP battery pack case structure according to claim 6, characterized by, The other end of the jacking rod (19) is provided with a round hole (21), and a limiting rod (20) is slidably connected in the round hole (21), and a second spring (22) is connected between the limiting rod (20) and the inner side of the round hole (21); both sides of the end of the reinforcing plate (5) are provided with limiting holes (18), and the limiting rod (20) is elastically inserted into the limiting holes (18); the end of the limiting rod (20) away from the round hole (21) is a spherical head, and the limiting hole (18) is a spherical groove, and the depth of the spherical groove is less than the diameter of the spherical head.

8. The CTP battery pack case structure according to claim 7, characterized by, Both sides of the end of the reinforcing plate (5) are provided with guide grooves (17), the width of the guide grooves (17) is not less than the diameter of the limiting rod (20), and the limiting holes (18) are provided on the inner side of the guide grooves (17); the other end of the jacking rod (19) abuts against the reinforcing plate (5).

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