CTP cell clamping and mounting structure

Abstract

According to the CTP battery cell clamping and mounting structure, in the structure, a battery wrapping frame assembly is a frame structure for mounting a plurality of battery cell modules; the stiffening beam assembly comprises a plurality of stiffening beams for clamping and fixing the battery cell modules, and the stiffening beams are in threaded connection so as to enable the stiffening beam assembly and the battery cell modules to form an integral structure; the connector assembly is connected with the integral structure and the battery pack frame assembly, and the connector assembly comprises a plurality of screw joint pieces for connecting the integral structure and the battery pack frame assembly. According to the structure, the requirement on the manufacturing tolerance of the box body assembly is reduced, and the reverse extrusion force after the battery cell module enters the box is ensured, so that the cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of CTP battery cores, in particular to a CTP battery core clamping and installation structure. Background Art

[0002] As energy and environmental issues become increasingly severe, countries around the world are increasing their research and development efforts in new energy vehicles. my country's new energy vehicle market has entered a period of explosive growth. As one of the three major components of electric new energy vehicles, research on power batteries is imperative.

[0003] Currently, there are usually two forms of internal layout of battery packs, namely modules and CTP cell stacking. As the market's demand for the energy density and volume utilization of the whole pack continues to increase, some manufacturers have begun to develop CTP cell stacking models and put whole pack products into the market. The current market-ready CTP cell stacking model still involves stacking cells in groups, placing PC plastic sheets at both ends of the grouped cells, and then using industrial mechanical grippers to apply pre-compression to the grouped cell modules while simultaneously gripping the grouped cells and placing them into the PACK box. The reverse extrusion force from the pre-compression of the cell modules acts on the box reinforcement beams, and the thermally conductive structural adhesive at the bottom of the cell modules provides the final fixation. The most direct problem caused by this traditional design is the very high internal dimensional tolerance requirements of the PACK box assembly. The manufacturing tolerances of the components, the assembly tolerances of the box assembly, and welding deformation can easily lead to cumulative tolerance violations of the box assembly, which in turn causes the cell fixing area inside the box to be too large or too small. If the internal dimensions of the box are too large, the extrusion force of the cell modules will be reduced, resulting in loose fixation. If the internal dimensions of the box are too small, there will be interference with the insertion of the cell modules. Furthermore, the stricter the tolerance control in the manufacturing process, the higher the cost, resulting in poor economic performance.

[0004] The above information disclosed in the background technology section is only used to enhance understanding of the background of the present invention and therefore may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] The purpose of this utility model is to provide a CTP battery cell clamping and installation structure. A mechanical gripper grasps the battery cell module and places it into the box. While ensuring the overall strength of the box assembly frame, the battery cell module is clamped and secured by screwing the internal reinforcement beams. Finally, the battery cell module and the reinforcement beam assembly are simultaneously grasped and installed into the box. This reduces the manufacturing tolerance requirements for the box assembly, ensures the squeezing force of the battery cell module after placement, and thus reduces R&D and manufacturing costs, improving economic efficiency.

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

[0007] A CTP battery core clamping and mounting structure of the utility model includes:

[0008] The battery pack frame assembly is a frame structure for mounting multiple battery modules;

[0009] A reinforcement beam assembly, comprising a plurality of reinforcement beams for clamping and fixing the battery cell modules, wherein the reinforcement beams are screwed together to form an integral structure with the reinforcement beam assembly and the plurality of battery cell modules;

[0010] A connector assembly connects the overall structure and the battery pack frame assembly, and the connector assembly includes a plurality of screw connectors connecting the overall structure and the battery pack frame assembly.

[0011] In the CTP battery cell clamping and installation structure, the battery cell module includes a plurality of CTP battery cells stacked in sequence.

[0012] In the CTP battery cell clamping and installation structure, the reinforcement beam assembly includes a longitudinal reinforcement beam extending longitudinally along the battery pack frame assembly and a plurality of transverse reinforcement beams screwed to the longitudinal reinforcement beam.

[0013] In the CTP battery cell clamping and installation structure, the longitudinal reinforcement beam and the transverse reinforcement beam are both rectangular hollow beams.

[0014] In the CTP battery cell clamping and installation structure, adjacent rectangular hollow beams are respectively provided with hollow notches and protrusions that cooperate with each other.

[0015] In the CTP battery cell clamping and installation structure, the bolts are detachably connected to the hollow notch and the raised portion.

[0016] In the CTP battery cell clamping and mounting structure, the screw connection member includes a protruding mounting portion adapted to the hollow notch and a hollow mounting portion adapted to the convex portion.

[0017] In the CTP battery cell clamping and mounting structure, the hollow notch, the protruding mounting portion, the raised portion and the hollow mounting portion are all provided with screw holes for connecting bolts.

[0018] In the CTP battery cell clamping and installation structure, the battery pack frame assembly includes a grid-type horizontal bottom and side walls extending upward from the grid-type horizontal bottom.

[0019] In the CTP battery cell clamping and mounting structure, the side wall is provided with a screw hole for connecting the screw connection member.

[0020] In the above technical solution, the utility model provides a CTP battery cell clamping and installation structure, which has the following beneficial effects: the CTP battery cell clamping and installation structure pre-fixes the battery cell module by screwing the inner part of the reinforcing beam, and finally the battery cell module and the reinforcing beam assembly are simultaneously grabbed into the box for installation, thereby ensuring the reverse extrusion force of the battery cell module and ensuring that the battery cell module is effectively fixed; the reinforcing beam and the battery cell module are put into the box as a whole and then fixed by screwing, thereby avoiding the adverse effects such as deformation caused by welding deformation of the box frame and the reinforcing beam, reducing the manufacturing tolerance requirements for the manufacturing, assembly and welding of the box parts, reducing the mold development costs, etc., and can be used in aluminum alloy boxes, and can also be used in sheet metal boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 This is a schematic axial view of the CTP battery cell clamping and mounting structure of the present invention.

[0023] Figure 2 This is a structural schematic diagram of the overall structure formed by clamping and fixing the cell module and the reinforcing beam assembly of the CTP cell clamping and mounting structure of the present invention.

[0024] Figure 3 This is a structural schematic diagram of the battery pack frame assembly and connector assembly of the CTP battery cell clamping and mounting structure of the present invention.

[0025] Figure 4 This is an exploded schematic diagram of the CTP battery cell clamping and installation structure of the present invention.

[0026] Figure 5 This is a front view schematic diagram of the CTP battery cell clamping and installation structure of the present invention.

[0027] Figure 6 for Figure 5 Enlarged schematic diagram of A_A.

[0028] Figure 7 This is a top view schematic diagram of the CTP battery cell clamping and mounting structure of the present invention.

[0029] The markings in the accompanying drawings are: battery cell module 1, battery pack frame assembly 2, reinforcement beam assembly 3, and connector assembly 4. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the implementation methods of the present invention clearer, the technical solutions in the implementation methods of the present invention will be clearly and completely described below in combination with the drawings in the implementation methods of the present invention. Obviously, the described implementation methods are only part of the implementation methods of the present invention, not all of the implementation methods.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1-7 As shown, in one embodiment, a CTP battery cell clamping and mounting structure of the utility model includes:

[0035] The battery pack frame assembly 2 is a frame structure for mounting multiple battery modules 1;

[0036] A reinforcement beam assembly 3, comprising a plurality of reinforcement beams for clamping and fixing the battery cell modules 1, wherein the reinforcement beams are screwed together to form an integral structure with the reinforcement beam assembly 3 and the plurality of battery cell modules 1;

[0037] The connector assembly 4 connects the overall structure and the battery pack frame assembly 2 . The connector assembly 4 includes a plurality of screw connectors that connect the overall structure and the battery pack frame assembly 2 .

[0038] In a preferred embodiment of the CTP battery cell clamping and installation structure, the battery cell module 1 includes a plurality of CTP battery cells stacked in sequence.

[0039] In a preferred embodiment of the CTP battery cell clamping and mounting structure, the reinforcing beam assembly 3 includes a longitudinal reinforcing beam extending longitudinally along the battery pack frame assembly 2 and a plurality of transverse reinforcing beams screwed to the longitudinal reinforcing beam.

[0040] In a preferred embodiment of the CTP battery cell clamping and mounting structure, the longitudinal reinforcement beams and the transverse reinforcement beams are both rectangular hollow beams.

[0041] In a preferred embodiment of the CTP battery cell clamping and mounting structure, adjacent rectangular hollow beams are respectively provided with hollow notches and protrusions that cooperate with each other.

[0042] In a preferred embodiment of the CTP battery cell clamping and mounting structure, the bolts are detachably connected to the hollow notch and the protrusion.

[0043] In a preferred embodiment of the CTP battery cell clamping and mounting structure, the screw connection member includes a protruding mounting portion adapted to the hollow notch and a hollow mounting portion adapted to the convex portion.

[0044] In a preferred embodiment of the CTP battery cell clamping and mounting structure, the hollow notch, the protruding mounting portion, the raised portion and the hollow mounting portion are all provided with screw holes for connecting bolts.

[0045] In a preferred embodiment of the CTP battery cell clamping and mounting structure, the battery pack frame assembly includes a grid-type horizontal bottom and side walls extending upward from the grid-type horizontal bottom.

[0046] In a preferred embodiment of the CTP battery cell clamping and mounting structure, the side wall is provided with a screw hole for connecting the screw member.

[0047] In one embodiment, the CTP battery cell clamping and installation structure is composed of a battery cell module, a reinforcement beam assembly, a connector assembly, and a battery pack frame assembly. The way the battery cell module is put into the box is redesigned. The battery cell module is pre-fixed by screwing the inner part of the reinforcement beam. Finally, the battery cell module and the reinforcement beam assembly are simultaneously grabbed and put into the box for installation. The battery cell module is grabbed and put into the box by a mechanical gripper. The connection method between the box reinforcement beam assembly and the PACK frame assembly is changed from welding to screwing. While ensuring the overall frame strength of the box assembly, the battery cell module is pre-fixed by screwing the inner part of the reinforcement beam. Finally, the battery cell module and the reinforcement beam assembly are simultaneously grabbed and put into the box for installation. The manufacturing tolerance requirements for the box assembly are reduced, and the reverse extrusion force after the battery cell module is put into the box is guaranteed, thereby reducing R&D costs, manufacturing costs, and being more economical.

[0048] Finally, it should be noted that the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of this application.

[0049] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CTP battery cell clamping and mounting structure, characterized in that: It includes, The battery pack frame assembly is a frame structure for mounting multiple battery modules; A reinforcement beam assembly, comprising a plurality of reinforcement beams for clamping and fixing the battery cell modules, wherein the reinforcement beams are screwed together to form an integral structure with the reinforcement beam assembly and the plurality of battery cell modules; A connector assembly connects the overall structure and the battery pack frame assembly, and the connector assembly includes a plurality of screw connectors connecting the overall structure and the battery pack frame assembly.

2. A CTP battery core clamping and mounting structure according to claim 1, characterized in that: The battery cell module includes a plurality of CTP battery cells stacked in sequence.

3. A CTP battery cell clamping and mounting structure according to claim 1, characterized in that: The reinforcement beam assembly includes a longitudinal reinforcement beam extending longitudinally along the battery pack frame assembly and a plurality of transverse reinforcement beams screwed to the longitudinal reinforcement beam.

4. A CTP battery cell clamping and mounting structure according to claim 3, characterized in that: The longitudinal reinforcement beam and the transverse reinforcement beam are both rectangular hollow beams.

5. A CTP battery cell clamping and mounting structure according to claim 4, characterized in that: The adjacent rectangular hollow beams are respectively provided with hollow notches and protrusions that match each other.

6. A CTP battery cell clamping and mounting structure according to claim 5, characterized in that: The bolt detachably connects the hollow notch and the protrusion.

7. The CTP battery cell clamping and mounting structure according to claim 5, characterized in that: The screw connection member includes a protruding mounting portion adapted to the hollow slot and a hollow mounting portion adapted to the convex portion.

8. The CTP battery cell clamping and mounting structure according to claim 7, characterized in that: The hollow notch, the protruding mounting portion, the convex portion and the hollow mounting portion are all provided with screw holes for connecting bolts.

9. The CTP battery cell clamping and mounting structure according to claim 1, characterized in that: The battery pack frame assembly includes a grid-type horizontal bottom and side walls extending upward from the grid-type horizontal bottom.

10. The CTP battery cell clamping and installation structure according to claim 9, characterized in that: The side wall is provided with a screw hole for connecting the screw connection member.

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