Continuous fiber reinforced thermoplastic composite material battery tray with cooling device

Abstract

The utility model discloses a continuous fiber reinforced thermoplastic composite material battery tray with a cooling device, the battery tray is provided with a continuous fiber piece, the continuous fiber piece is connected with a cooling plate, and the continuous fiber piece is connected with a reinforcing assembly; the battery is simple in structure and reasonable in design, the continuous fiber piece and the cooling plate are integrally formed through a process, the assembly cost is reduced, the production procedures are reduced, the heat dissipation performance is improved, the service life of the battery is prolonged, the bonding strength is high, and battery system faults are reduced; the weight of the battery tray can be obviously reduced by using the continuous fiber piece, so that the mass of the whole vehicle is reduced, the endurance mileage of the electric vehicle is increased, and the safety is improved; and the cost of the continuous fiber thermoplastic composite material is lower than that of aluminum alloy, so that the production cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a technical field, specifically a continuous fiber reinforced thermoplastic with a cooling device

[0002] Composite material battery tray. Background Art

[0003] The automotive battery tray is an important component of the power system of new energy vehicles. It bears the heavy responsibility of supporting battery modules and ensuring the safety of the battery system. The cooling device in the battery pack is crucial to ensuring battery performance, extending service life and preventing overheating. Today's main cooling technologies include air cooling, liquid cooling and direct refrigerant cooling. With the increasing demand for lightweighting, aluminum alloy trays have gradually become the mainstream choice.

[0004] Deficiencies of existing technology:

[0005] At present, aluminum alloy pallets have many manufacturing processes and complex welding processes, which lead to welding deformation and poor sealing. In addition, cast aluminum alloys have defects such as undercasting, cracks, cold shuts, dents, and air holes during the casting process. The elongation of aluminum alloys is low, and the connection with the cooling plate is mostly made by welding and bolts. The assembly is relatively complicated. The weight of aluminum alloy is heavy, which will affect the weight of the battery tray, and thus affect the overall quality and endurance performance of the car. Utility Model Content

[0006] The purpose of the present utility model is to provide a continuous fiber reinforced thermoplastic composite battery tray with a cooling device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a continuous fiber reinforced thermoplastic composite battery tray with a cooling device, wherein the battery tray is provided with a continuous fiber member, the continuous fiber member is connected to a cooling plate, and the continuous fiber member is connected to a reinforcing component.

[0008] Preferably, the reinforcement component comprises:

[0009] internal reinforcing ribs connected to the cooling plate and disposed inside the continuous fiber member;

[0010] External reinforcing ribs are connected to the cooling plate and are arranged outside the continuous fiber member.

[0011] Preferably, the cooling plate is provided with reserved holes for connecting the internal reinforcement ribs and the external reinforcement ribs.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides a continuous fiber reinforced thermoplastic composite battery tray with a cooling device, which integrates continuous fiber parts and cooling plates through a process, reduces assembly costs and reduces production processes, improves heat dissipation performance, extends battery life, has high bonding strength, and reduces battery system failures; and the use of continuous fiber parts can significantly reduce the weight of the battery tray, thereby reducing the weight of the entire vehicle, increasing the cruising range of electric vehicles, and improving safety; and the cost of continuous fiber thermoplastic composite materials is lower than that of aluminum alloy, which greatly reduces costs during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is the main view of the utility model;

[0016] Figure 3 This is a schematic diagram of the external reinforcement ribs of the present utility model;

[0017] In the figure: 110, continuous fiber part; 120, cooling plate; 130, internal reinforcement rib; 140, external reinforcement rib; 150, metal insert. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "disposed" should be understood broadly. For example, they can refer to fixed connection or disposition, detachable connection or disposition, or integrated connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "several" means two or more, unless otherwise specifically defined.

[0022] Example

[0023] See also Figure 1-3As shown, the utility model provides a technical solution of a continuous fiber reinforced thermoplastic composite battery tray with a cooling device: the battery tray is provided with a continuous fiber part 110, the continuous fiber part 110 is connected to a cooling plate 120, the cooling plate 120 is arranged on the continuous fiber part 110 through a metal insert 150, the continuous fiber part 110 is connected to a reinforcing component, the reinforcing component includes an internal reinforcing rib 130 and an external reinforcing rib 140, the internal reinforcing rib 130 is connected to the cooling plate 120 and is installed inside the continuous fiber part 110, the external reinforcing rib 140 is connected to the cooling plate 120 and is installed outside the continuous fiber part 110, during production, first a continuous fiber sheet is selected and placed in an infrared oven for baking, the soft-baked continuous fiber sheet is clamped and placed in a mold, the mold is closed and molded, and after cooling and solidification, the continuous fiber part 110 is demolded to form the continuous fiber part 110; the continuous fiber part 110 is molded and contour cut and reserved holes are opened on a CNC machine tool, the diameter of the reserved holes is larger than the diameter of the embedded parts, and the cooling plate 120 is reserved for openings The reserved holes for connecting the internal reinforcement ribs 130 and the external reinforcement ribs 140; the cut continuous fiber piece 110 is placed in an infrared oven for baking at a temperature of 200°C-400°C for 5-15 minutes; the baked continuous fiber piece 110 is transferred to the top of the forming mold by a robotic arm and placed on the positioning device in the mold through the reserved holes; finally, the cooling plate 120 is placed into the mold together with the metal insert 150 and the embedded parts, and the mold is closed, and the press is started to press the product. The injection molding machine is started with a pressure of 1-6 MPa and a pressing time of 20-100 seconds. The long-fiber thermoplastic material is injected into the mold, and multiple upper and lower gates are used for injection molding. The lower gate injects the injection material through the reserved holes in the continuous fiber part 110 to connect the bottom of the cooling plate 120 to the continuous fiber part 110. The upper gate connects the injection material to the bottom continuous fiber part 110 along the reserved holes of the internal reinforcement ribs 130 and the external reinforcement ribs 140. The pressure is maintained for 100-300 seconds. After cooling, the mold is opened and the part is removed. The cooling plate 120 and the continuous fiber part 110 are integrated into one process, which reduces assembly costs and production steps, improves heat dissipation performance, extends battery life, has high bonding strength, and reduces battery system failures. The overall device can significantly reduce the weight of the battery tray by using continuous fiber thermoplastic composite materials, thereby reducing the weight of the entire vehicle, improving the range of electric vehicles, and improving safety. In addition, the cost of continuous fiber thermoplastic composite materials is lower than that of aluminum alloys, which greatly reduces production costs.

[0024] The working principle of this utility model is as follows:

[0025] The present embodiment provides a continuous fiber reinforced thermoplastic composite battery tray with a cooling device. During its production, a continuous fiber sheet is first selected and placed in an infrared oven for baking. The soft baked continuous fiber sheet is clamped and placed in a mold, the mold is closed and molded, and after cooling and solidification, the continuous fiber part 110 is demolded to form the continuous fiber part 110; the continuous fiber part 110 is molded and contour cut and reserved holes are opened on a CNC machine tool. The diameter of the reserved hole is larger than the diameter of the embedded part, and a reserved hole for connecting the internal reinforcement rib 130 and the external reinforcement rib 140 is reserved on the cooling plate 120; the cut continuous fiber part 110 is placed in an infrared oven for baking at a baking temperature of 200°C-400°C and a baking time of 5-15 minutes; the baked continuous fiber part 110 is placed in an infrared oven for baking at a baking temperature of 200°C-400°C and a baking time of 5-15 minutes. The dimensional part 110 is transferred to the top of the forming mold by the robotic arm and placed on the positioning device in the mold through the reserved hole; finally, the cooling plate 120 is placed into the mold together with the metal insert 150 and the embedded parts and the mold is closed, and the press is started to press the product with a pressure of 1-6MPa and a pressing time of 20-100s. The injection molding machine program is started to inject long-fiber thermoplastic material into the mold, and multiple upper and lower gates are used for injection molding. The lower gate injects the injection plastic through the reserved hole of the continuous fiber part 110 to connect the bottom of the cooling plate 120 with the continuous fiber part 110, and the upper gate connects the injection plastic along the reserved holes of the internal reinforcement 130 and the external reinforcement 140 to the bottom continuous fiber part 110. The pressure is maintained for 100-300s, and the mold is opened after cooling to remove the parts. The cooling plate 120 and the continuous fiber member 110 are formed into an integrated process, which reduces assembly costs and production processes, improves heat dissipation performance, extends battery life, has high bonding strength, and reduces battery system failures; the overall device can significantly reduce the weight of the battery tray by using continuous fiber thermoplastic composite materials, thereby reducing the weight of the entire vehicle, increasing the cruising range of the electric vehicle, and improving safety; and the cost of continuous fiber thermoplastic composite materials is lower than that of aluminum alloy, which greatly reduces costs during production.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous fiber reinforced thermoplastic composite battery tray with a cooling device, characterized by: The battery tray is provided with a continuous fiber piece (110), the continuous fiber piece (110) is connected to a cooling plate (120), and the continuous fiber piece (110) is connected to a reinforcement component; The reinforcement components include: Internal reinforcing ribs (130), the internal reinforcing ribs (130) being connected to the cooling plate (120) and arranged inside the continuous fiber member (110); External reinforcing ribs (140), the external reinforcing ribs (140) being connected to the cooling plate (120) and arranged outside the continuous fiber member (110).

2. The continuous fiber reinforced thermoplastic composite battery tray with a cooling device according to claim 1, characterized in that: The cooling plate (120) is provided with a reserved hole for connecting the internal reinforcement rib (130) and the external reinforcement rib (140).

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