Composite material reinforcing plate and tail door inner plate
By using composite reinforcement plates made of continuous fiber or carbon fiber materials, combined with insert injection molding and reinforcement design, the problem of high cost of metal reinforcements is solved, achieving the effects of lightweighting and strength improvement.
Patent Information
- Application Number
- CN202422558050.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The existing composite material tailgate inner panel has large and high-precision metal reinforcement components, resulting in excessively high costs and making it difficult to meet strength requirements while reducing weight and cost.
Composite reinforcement plates made of continuous fiber or carbon fiber materials are formed into closed cavities through compression molding and integrally molded with inner plate inserts by injection molding. They are combined with struts and hinge reinforcements to improve bonding and strength.
It achieves lightweighting and cost reduction while improving overall strength, and the reinforcing plate and inner plate are integrally formed, resulting in good bonding.
Smart Images
Figure CN223720625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of automobile tail door, and relates to a composite material reinforcing plate and tail door inner plate. BACKGROUND
[0002] With the higher and higher requirements of oil consumption and electricity consumption, lightweight is an indispensable link to reduce electricity consumption and oil consumption, and the composite material tail door becomes a kind of trend as a lightweight scheme. However, customers have more and more strict requirements on cost, and cost reduction also becomes a key point of the composite material tail door. At present, the composite material tail door inner plate is mainly reinforced by metal reinforcing parts, and the metal reinforcing parts are generally embedded, injection molded or bonded or screwed on the inner plate. In this scheme, the metal parts are usually large in size and high in precision requirement, resulting in high cost. UTILITY MODEL CONTENTS
[0003] The utility model solves the technical problems that the prior art is provided, and provides a composite material reinforcing plate and tail door inner plate which are good in strength, light in weight, low in cost and good in combination.
[0004] The utility model adopts the technical scheme that a composite material reinforcing plate is characterized in that the main part is made of composite material, and a closed cavity is formed in the main part.
[0005] In the above-mentioned composite material reinforcing plate, the composite material is a continuous fiber or carbon fiber material molded.
[0006] As optimization, in the above-mentioned composite material reinforcing plate, the two ends of the main part are respectively provided with a first connecting end head and a second connecting end head, and the closed cavity is between the two connecting end heads.
[0007] As optimization, in the above-mentioned composite material reinforcing plate, the side wall thickness of the closed cavity is 1-2mm.
[0008] As further optimization, in the above-mentioned composite material reinforcing plate, the side wall thickness of the closed cavity is 1.25mm.
[0009] As optimization, in the above-mentioned composite material reinforcing plate, the thickness of the closed cavity is 2-4mm.
[0010] As further optimization, in the above-mentioned composite material reinforcing plate, the thickness of the closed cavity is 2.5mm.
[0011] A tail door inner plate is characterized in that it comprises a composite material reinforcing plate and an inner plate body, and the composite material reinforcing plate and the inner plate body are integrally formed by insert injection molding.
[0012] As optimization, in the tail gate inner plate, the first cladding part and the second cladding part are formed on the inner plate body respectively, the first cladding part clads on the first connecting end head part, and the second cladding part clads on the second connecting end head part.
[0013] In the tail gate inner plate, the bracing rod reinforcing part is installed on the lower part of the composite material reinforcing plate installation part of the inner plate body, and the hinge reinforcing part is installed on the upper part of the composite material reinforcing plate installation part of the inner plate body.
[0014] Compared with the prior art, the composite material reinforcing plate formed by the continuous fiber or the carbon fiber material replaces the original metal reinforcing part, so that the overall weight is reduced, the manufacturing cost is reduced, the overall strength is improved, the composite material reinforcing plate and the inner plate are integrally injection molded, and the combination is good. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall structure schematic diagram of the composite material reinforcing plate;
[0016] Figure 2 It is the structure schematic diagram before the composite material reinforcing plate and the inner plate are combined;
[0017] Figure 3 It is the overall structure schematic diagram after the composite material reinforcing plate and the inner plate are installed. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0019] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms 'center', 'transverse', 'longitudinal', 'front','rear', 'left', 'right', 'upper', 'lower','vertical', 'horizontal', 'top', 'bottom', 'inner', 'outer' and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the protection scope of the utility model.
[0020] In the figure; main body 100; closed cavity 200; first connecting end head 300; second connecting end head 400; first cladding 500; second cladding 600; strut reinforcement 700; hinge reinforcement 800; closed cavity side wall thickness t; closed cavity thickness 2t; inner plate body 900; rib 1000.
[0021] As shown in Figure 1 and Figure 2 , the composite material reinforced plate, comprising a main body 100, the main body 100 is made of continuous fiber or carbon fiber material, the main body 100 is formed with a closed cavity 200, here the closed cavity 200 of the patent is made of continuous fiber or carbon fiber material, and the closed cavity 200 is hollow, used to replace the original metal reinforcement, not only reduces the overall weight, reduces the manufacturing cost, but also improves the overall strength, when manufacturing, first, the whole is formed by molding, the movable mechanism is designed on the mold, the wall thickness is molded integrally, the position of the closed cavity 200 is made, the mold structure is lifted to form the hollow thickness, the mold edge is kept at a certain distance, then the product is injected by air auxiliary, water auxiliary or other special way, so that the position of the cavity is extruded by pressure to form the closed cavity 200, the closed cavity side wall thickness t is 1-2mm, in this embodiment, the closed cavity side wall thickness t is 1.25mm, which is the best, the closed cavity thickness 2t is 2-4mm, as a further optimization, in this embodiment, the closed cavity thickness 2t is 2.5mm, which is the best, when selecting the thickness, that is, the closed cavity thickness 2t is 2 times the closed cavity side wall thickness t, in order to ensure the combination, the two ends of the main body 100 are provided with a first connecting end head 300 and a second connecting end head 400, and the closed cavity 200 is between the two connecting end heads.
[0022] As shown in Figure 3As shown, the inner plate of the tail door includes a composite reinforcing plate and an inner plate body 900, the composite reinforcing plate and the inner plate body 900 are integrally formed by insert injection molding, here the composite reinforcing plate and the inner plate body 900 are integrally formed by insert injection molding, and a plurality of ribs 1000 are designed on the top to increase the connection strength of the composite reinforcing plate and the inner plate body 900, in order to ensure the combination, the inner plate body 900 is formed with a first cladding part 500 and a second cladding part 600 respectively, wherein the first cladding part 500 clads on the first connecting end head part 300, and the second cladding part 600 clads on the second connecting end head part 400, so that the inner plate body 900 and the composite reinforcing plate form an integral whole, and the combination is good, in addition, at the stress position of the plastic tail door, a support rod reinforcing part 700 is installed at the lower part of the composite reinforcing plate mounting position of the inner plate body 900, and a hinge reinforcing part 800 is installed at the upper part of the composite reinforcing plate mounting position of the inner plate body 900, the two reinforcing parts are assembled on the product in the form of bolts or glue, and the local stress performance is increased.
[0023] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
Claims
1. A composite material reinforcing plate, characterized in that, It includes a main body component, which is made of composite material and has a closed cavity formed inside. The composite material is molded from continuous fiber or carbon fiber material. The main body component has a first connecting end head and a second connecting end head at its two ends, and the two connecting end heads are separated by a closed cavity.
2. The composite material reinforcing plate according to claim 1, characterized in that, The side wall thickness of the enclosed cavity is 1-2 mm.
3. A composite material reinforcing plate according to claim 2, characterized in that, The side wall thickness of the enclosed cavity is 1.25 mm.
4. The composite material reinforcing plate according to claim 1, characterized in that, The thickness of the enclosed cavity is 2-4 mm.
5. A composite material reinforcing plate according to claim 4, characterized in that, The thickness of the enclosed cavity is 2.5 mm.
6. A tailgate inner panel, characterized in that: It includes the composite material reinforcing plate and the inner plate as described in any one of claims 1 to 5, wherein the composite material reinforcing plate and the inner plate are integrally formed by insert injection molding.
7. The tailgate inner panel according to claim 6, characterized in that, The inner plate has a first covering part and a second covering part formed thereon, wherein the first covering part covers the head of the first connecting end and the second covering part covers the head of the second connecting end.
8. The tailgate inner panel according to claim 7, characterized in that, The inner plate is equipped with a strut reinforcement at the lower part of the composite material reinforcement plate mounting area, and a hinge reinforcement at the upper part of the inner plate is equipped with a hinge reinforcement.