CN220341365U - Assembly structure of CTP battery pack - Google Patents

Abstract

The utility model provides an assembling structure of a CTP battery pack, and belongs to the technical field of batteries. The method solves the problems that the battery cell cannot be disassembled, the repair is difficult and the like in the existing CTP technology. This packaging structure of CTP battery package is including having the box that the opening is up, still includes the layering and is used for the first blend stop of location electricity core in the box stacking position, and first blend stop is fixed in one side of bottom plate in the box, is equipped with the regulation structure that is used for making electric core clamp on the first blend stop, can dismantle on the first blend stop and be connected with the layering that is used for compressing tightly the electricity core and fixes in the box. The utility model improves the flexibility of battery pack assembly and is convenient to assemble and disassemble.

Description

Assembly structure of CTP battery pack

Technical Field

The utility model belongs to the technical field of batteries, and relates to an assembling structure of a CTP battery pack.

Background

The traditional battery pack structure adopts a packaging form of 'battery core-battery module-battery pack' (MTP, moduletoPack), so that heat transfer between modules can be reduced when an accident or a fault occurs, but the space utilization rate of the battery pack is low, and the improvement of specific energy of the lithium battery is limited. The CTP technology skips the module, directly integrates the battery cell into a battery pack, and at present, the CTP packaging mode gradually becomes the main stream of the battery pack packaging structure.

CTP (Cell-to-Pack), in which the cells are stacked outside the case, clamped to a designed size by a fixture, and then the grouped cells are clamped by the fixture and placed in the case and fixed by gluing, etc., so that the case is not required to be arranged to Pack the cells to form a battery module. Under the premise that the safety of the battery cell is ensured, the CTP technology reduces the internal cables and structural members, and the volume energy density and the weight energy density of the whole battery pack are improved. However, the existing fixing mode has higher requirements on tools and equipment, and the battery packs of different projects have different sizes, so that the tool clamp and the like cannot share higher cost. In addition, the battery core is fixed by using the structural adhesive, so that the battery core cannot be disassembled, and the battery core is difficult to repair.

Disclosure of Invention

The utility model aims at solving the problems existing in the prior art, and provides an assembling structure of a CTP battery pack, which aims at solving the technical problems that: how to improve the flexibility of battery pack assembly.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides an assembled structure of CTP battery package, is including having the box that the opening was up, this assembled structure still includes the layering and is used for the location electric core in the box stacks the first blend stop in the position, first blend stop is fixed in one side of box inner bottom plate, be equipped with on the first blend stop and be used for making the tight regulation structure of electric core clamp, can dismantle on the first blend stop and be connected with and be used for compressing tightly the layering of fixing in the box with electric core.

This packaging structure of CTP battery package when using to stack the electric core with the lateral wall of the box relative with first blend stop as the benchmark, when electric core stack first blend stop department, use adjusting structure to press from both sides tight being fixed in the box with electric core, first blend stop and adjusting structure's design for electric core can the monolithic be placed in a flexible way, fix also need not to adopt the structural adhesive to fix, the problem that is difficult to dismantle for the electric core of current CTP technique is fixed with structural adhesive, later the rethread layering compresses tightly the electric core and fixes in the box, layering and first blend stop are detachable connected mode, when the battery package goes wrong, the dismantlement is reprocessed of being convenient for, use with the cooperation of first blend stop and adjusting structure, the flexibility of battery package equipment has effectively been improved.

In the above-mentioned assembly structure of CTP battery package, the side that first blend stop just faces with the electric core is the inclined plane, adjust the fixed block that the structure is right trapezoid just compresses tightly the electric core with the inclined plane cooperation of first blend stop for the transversal right trapezoid that personally submits. The fixed block can be after the electric core stacks up, through carrying out cooperation with first blend stop and press from both sides tight electric core to design size, guarantees that the extrusion force can fix the electric core again, improves the flexibility that the electric core was installed and is dismantled.

In the above-mentioned assembled structure of CTP battery package, the side that first blend stop just faces with the electric core is the perpendicular, adjust the structure and be used for compressing tightly first trapezoidal briquetting and the second trapezoidal briquetting of electric core including transversal right trapezoid that personally submits and mutually support. The first trapezoidal briquetting and the second trapezoidal briquetting are used, so that the battery cell is fixed more easily.

In the above-mentioned assembly structure of CTP battery package, the bottom of first blend stop has the boss that is used for with adjusting structure fixed connection.

In the above-mentioned assembly structure of CTP battery pack, the bead has at least three.

In the assembling structure of the CTP battery pack, the pressing strips positioned on two sides are provided with folded edges for limiting the movement of the battery cells in the length direction.

In the above-mentioned assembly structure of CTP battery package, still be fixed with the second blend stop on the bottom plate in the box, the second blend stop sets up in the both sides of bottom plate in the box with first blend stop relatively. The arrangement of the second barrier strip on the bottom plate in the box body can further limit the position of the battery cell, so that the battery cell is not in direct contact with the side wall of the box body, the damage to the battery cell caused by the collision of the box body is avoided, and the application stability of the battery pack is improved.

In the assembling structure of the CTP battery pack, the pressing strips are locked on the first barrier strips and the second barrier strips through bolts.

In the above-mentioned assembly structure of CTP battery package, the side that first blend stop and electric core are just right is provided with first end plate, adjust the structure set up in between first end plate and the first blend stop. The arrangement of the first end plate can protect the battery cell and enable the surface of the battery cell to be subjected to even extrusion force.

In the above assembly structure of CTP battery pack, the side surface of the second barrier strip opposite to the battery cell is provided with a second end plate.

Compared with the prior art, the assembling structure of the CTP battery pack has the following advantages:

1. the battery pack assembly structure is convenient to operate, high in flexibility of battery pack assembly, capable of being stacked in a single-piece mode when stacking the battery cells, free of an adhesive mode, high in installation fault tolerance and flexible in battery cell stacking.

2. The utility model does not need to use special stacking clamping tools and hoisting equipment, and the equipment tool has low cost.

3. According to the utility model, the electric core is fixed by using the bolt locking and adjusting structure and the layering mode, so that the convenience of disassembly and repair is improved.

Drawings

Fig. 1 is an exploded view of the present utility model.

Fig. 2 is a schematic side view of the first embodiment.

Fig. 3 is a schematic side view of the second embodiment.

In the figure, 1, a box body; 2. a first barrier strip; 21. a boss; 3. pressing strips; 31. folding edges; 4. an adjustment structure; 41. a fixed block; 42. a first trapezoidal briquette; 43. a second trapezoidal briquette; 5. a second barrier strip; 6. a first end plate; 7. a second end plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1, the assembly structure of the CTP battery pack comprises a box body 1 with an upward opening, a pressing strip 3, a first barrier strip 2 and a second barrier strip 5, wherein the first barrier strip 2 and the second barrier strip 5 are arranged oppositely in a stacking position of the box body 1 and are fixed on two sides of an inner bottom plate of the box body 1, an adjusting structure 4 for clamping the battery is arranged on the first barrier strip 2, a boss 21 fixedly connected with the adjusting structure 4 is arranged at the bottom of the first barrier strip 2, the pressing strip 3 for fixing the battery in the box body 1 through pressing and fastening is detachably connected to the first barrier strip 2, and the pressing strip 3 is at least three, wherein the pressing strips 3 arranged on two sides are provided with folded edges 31 for limiting the movement of the battery in the length direction.

In this embodiment, as shown in fig. 2, the opposite side of the first barrier strip 2 to the battery cell is an inclined plane, and the adjusting structure 4 is a fixed block 41 with a right trapezoid cross section and matched with the inclined plane of the first barrier strip 2 to compress the battery cell. The fixing block 41 is fixedly connected with the boss 21 by a bolt.

The pressing bar 3 is locked on the first barrier rib 2 and the second barrier rib 5 through bolts. In addition, the pressing bar 3 can also be connected with the first barrier rib 2 and the second barrier rib 5 in a snap connection mode.

The side of the first barrier strip 2, which is opposite to the battery cell, is provided with a first end plate 6, and the adjusting structure 4 is arranged between the first end plate 6 and the first barrier strip 2. The side face of the second barrier strip 5, which is opposite to the battery cell, is provided with a second end plate 7.

When the CTP battery pack assembling structure is used, the second barrier strip 5 is used as a reference, the battery cells are directly stacked in the box body 1, before stacking, the second end plate 7 is firstly placed before the first battery cell, then the battery cells are stacked from the second end plate 7 to the direction of the first barrier strip 2, after stacking, the first end plate 6 is placed between the first barrier strip 2 and the battery cells, the fixing block 41 extrudes downwards along the inclined plane of the first barrier strip 2, the battery cells are clamped between the first barrier strip and the second barrier strip, the fixing block 41 is locked on the boss 21 of the first barrier strip 2 by bolts, finally the pressing strip 3 with the folded edges 31 is locked on two sides of the first barrier strip 2 and the second barrier strip 5 by bolts, so that the movement of the length direction of the battery cells is fixed, and the pressing strip 3 without the folded edges 31 is locked at the middle position of the first barrier strip 2 and the second barrier strip 5 by bolts, so that the battery cells are further fixed. The design of this packaging structure for the electricity core can be placed in a flexible way by the monolithic, and it is fixed also to need not to adopt the structural adhesive to fix, has avoided the fixed problem that is difficult to dismantle of structural adhesive for the electricity core of current CTP technique, has improved the flexibility of battery package equipment.

Embodiment two:

as shown in fig. 3, the technical solution in this embodiment is basically the same as that in the first embodiment, except that the opposite side of the first barrier strip 2 to the battery cell is a vertical plane, and the adjusting structure 4 includes a first trapezoidal pressing block 42 and a second trapezoidal pressing block 43, which are right trapezoid in cross section and are mutually matched to press the battery cell.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The utility model provides an assembled structure of CTP battery package, includes box (1) up including having the opening, its characterized in that, this assembled structure still includes layering (3) and is used for the location electric core first blend stop (2) in box (1) stacking position, first blend stop (2) are fixed in one side of box (1) inner bottom plate, be equipped with on first blend stop (2) and be used for making tight regulation structure (4) of electric core clamp, be connected with on first blend stop (2) and be used for pressing from both sides layering (3) of fastening electric core in box (1).

2. The CTP battery pack assembly structure according to claim 1, wherein the side surface of the first barrier rib (2) opposite to the battery cell is an inclined surface, and the adjusting structure (4) is a fixed block (41) with a right trapezoid cross section and matched with the inclined surface of the first barrier rib (2) to compress the battery cell.

3. The CTP battery pack assembly structure according to claim 1, wherein the side surface of the first barrier strip (2) opposite to the battery cell is a vertical surface, and the adjusting structure (4) comprises a first trapezoidal pressing block (42) and a second trapezoidal pressing block (43) which are right trapezoid in cross section and are mutually matched to press the battery cell.

4. A CTP battery pack assembly structure according to claim 2 or 3, wherein the bottom of the first barrier rib (2) has a boss (21) for fixed connection with the adjustment structure (4).

5. The CTP battery pack assembly structure according to claim 1 or 2 or 3, wherein the bead (3) has at least three.

6. The CTP battery pack assembly structure according to claim 5, wherein the compression bars (3) at both sides have a folded edge (31) for limiting the movement of the cells in the length direction.

7. The CTP battery pack assembly structure according to claim 6, wherein the second barrier strips (5) are further fixed on the inner bottom plate of the case (1), and the second barrier strips (5) and the first barrier strips (2) are disposed on two sides of the inner bottom plate of the case (1) opposite to each other.

8. The CTP battery pack assembly structure according to claim 7, wherein both ends of each bead (3) are respectively locked to the first barrier rib (2) and the second barrier rib (5) by bolts.

9. The CTP battery pack assembly structure according to claim 1, 2 or 3, wherein a first end plate (6) is disposed on a side of the first barrier rib (2) opposite to the battery cell, and the adjusting structure (4) is disposed between the first end plate (6) and the first barrier rib (2).

10. The CTP battery pack assembly structure according to claim 7 or 8, wherein the second barrier rib (5) is provided with a second end plate (7) on the side opposite to the cell.