Carbon fiber seat and vehicle with same

Abstract

The utility model discloses a carbon fiber seat and a vehicle with the same, and relates to the field of seats. The seat specifically comprises a main body part and a reinforcing part, the reinforcing part is the part, needing strength reinforcement, of the seat, the main body part is the part, except the reinforcing part, of the seat, and the main body part and the reinforcing part are provided with multiple stacked main body carbon fiber layers. The multiple main body carbon fiber layers comprise two side layers located on the outer side and a plurality of middle layers located on the inner side, the reinforcing part further comprises at least one reinforcing carbon fiber layer, and the reinforcing carbon fiber layer is clamped between at least two adjacent layers of the middle layers. And the laying angle of the reinforced carbon fiber layer is the same as that of one of the two adjacent middle layers. The weak part of the seat is reinforced, the strength of the weak area on the seat is improved by changing the laying angle and the laying thickness of the carbon fiber layer of the reinforcing part, and the seat is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a carbon fiber seat and a vehicle having the same. Background Art

[0002] As a safety component for reducing injuries, the seat plays a decisive role in protecting the occupants, making it an important component in the research on automotive safety. Traditional automotive seat skeletons tend to be made of light metals such as steel, aluminum alloy, magnesium alloy, etc., which are heavy, have poor use effects, long production cycles, and high costs. As a new material with high strength and high elastic modulus, carbon fiber composite material is lighter than aluminum in mass, has higher strength than steel, and has flexible product design and diverse forming processes. Therefore, industry insiders have considered using carbon fiber composite materials in automotive seats to improve the deficiencies of traditional automotive seats. Summary of the Utility Model

[0003] In view of this, the utility model provides a carbon fiber seat and a vehicle having the same, which strengthen the weak parts of the seat. By changing the laying angle and laying thickness of the carbon fiber layers in these parts, the strength of the weak areas on the seat can be improved, the seat can be prevented from being damaged, and the driving experience can be enhanced.

[0004] A carbon fiber seat provided by the utility model includes a main body part and a strengthening part. The main body part and the strengthening part include multiple layers of stacked main body carbon fiber layers. The multiple layers of main body carbon fiber layers include two outer side layers and multiple inner intermediate layers. The strengthening part further includes at least one layer of strengthening carbon fiber layer. The strengthening carbon fiber layer is sandwiched between at least two adjacent layers of the intermediate layers, and the laying angle of the strengthening carbon fiber layer is the same as that of one of the two adjacent intermediate layers.

[0005] Further, the area of the strengthening carbon fiber layer is smaller than the area of the main body carbon fiber layer.

[0006] Further, the multiple layers of main body carbon fiber layers are connected by thermosetting molding, and the multiple layers of main body carbon fiber layers and at least one layer of strengthening carbon fiber layer are connected by thermosetting molding.

[0007] Further, the multiple layers of stacked main body carbon fiber layers are alternately laid at 0° and 45°, and at least one layer of strengthening carbon fiber layer is laid at 0° or 45°.

[0008] Further, the main body carbon fiber includes carbon filaments and woven fabric. The carbon filaments are arranged at 0° and 90°, and the woven fabric serves as the substrate of the carbon filaments and forms the main body carbon fiber layer together with the carbon filaments.

[0009] Further, the reinforced carbon fiber layer includes carbon filaments and a woven fabric. The carbon filaments are arranged at 0° and 90°, and the woven fabric serves as a substrate for the carbon filaments and together with the carbon filaments forms the reinforced carbon fiber layer.

[0010] Further, the main body part and the reinforcing part include 5 stacked main body carbon fiber layers, which are the first main body carbon fiber layer, the second main body carbon fiber layer, the third main body carbon fiber layer, the fourth main body carbon fiber layer, and the fifth main body carbon fiber layer in sequence. The first main body carbon fiber layer and the fifth main body carbon fiber layer are edge layers, the second main body carbon fiber layer, the third main body carbon fiber layer, and the fourth main body carbon fiber layer are intermediate layers. The first main body carbon fiber layer, the third main body carbon fiber layer, and the fifth main body carbon fiber layer are laid at 0°, and the second main body carbon fiber layer and the fourth main body carbon fiber layer are laid at 45°.

[0011] Further, the reinforcing part further includes 4 stacked reinforced carbon fiber layers, which are the first reinforced carbon fiber layer, the second reinforced carbon fiber layer, the third reinforced carbon fiber layer, and the fourth reinforced carbon fiber layer in sequence. The first reinforced carbon fiber layer, the second reinforced carbon fiber layer, the third reinforced carbon fiber layer, and the fourth reinforced carbon fiber layer are laid at 0°.

[0012] Further, the first reinforced carbon fiber layer and the second reinforced carbon fiber layer are sandwiched between the second main body carbon fiber layer and the third main body carbon fiber layer, and the third reinforced carbon fiber layer and the fourth reinforced carbon fiber layer are sandwiched between the third main body carbon fiber layer and the fourth main body carbon fiber layer.

[0013] The present utility model also provides a vehicle, including the carbon fiber seat as described above.

[0014] Compared with the existing technology, the present utility model has the following beneficial technical effects:

[0015] A carbon fiber seat and a vehicle having the same provided by the present utility model reinforce the weak positions of the seat structure. According to the analysis of the results of the seat failure test, the multi-layer main body carbon fiber layers of the seat main body part and the reinforcing part are alternately laid at 0° and 45°, which can improve the overall strength of the seat. On this basis, at least one layer of reinforced carbon fiber layer is added to the reinforcing part, that is, the weak position of the seat, to increase the thickness of the reinforcing part, and the reinforced carbon fiber layer is sandwiched in the intermediate layer of the main body carbon fiber layer, effectively avoiding the phenomenon of local stress concentration of the reinforced carbon fiber layer and further improving the strength and stiffness of the reinforcing part. According to the seat failure form, the laying angle of the reinforced carbon fiber layer is set to 0 degrees, which can improve the forward strength of the reinforcing part; while maximizing the freedom of the seat styling design, the present utility model can improve the strength of the weak points of the seat, avoid the seat from being damaged, and improve the driving experience. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the seat in the present utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the main body carbon fiber layer and the reinforcing carbon fiber layer on the reinforcing part in the present utility model;

[0018] Figure 3 It is a schematic structural diagram of each layer of the main body carbon fiber layer and each layer of the reinforcing carbon fiber layer in the present utility model.

[0019] Wherein: 10 - main body part; 20 - reinforcing part; 30 - main body carbon fiber layer; 40 - reinforcing carbon fiber layer; 50 - carbon filaments. Detailed Description of the Preferred Embodiments

[0020] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated in this description is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0022] Please refer to Figure 1 and Figure 2 , a carbon fiber seat provided by the present utility model includes a main body part 10 and a reinforcing part 20. The reinforcing part 20 is the part of the seat that needs to enhance the strength, such as the part that receives a large impact when the seat is hit, such as the position corresponding to the human shoulder on the seat shown in the figure. The main body part 10 is the part of the seat other than the reinforcing part 20. Both the main body part 10 and the reinforcing part 20 are provided with multiple stacked main body carbon fiber layers 30. The multiple main body carbon fiber layers 30 include two outer side layers and multiple inner intermediate layers. The reinforcing part 20 further includes at least one reinforcing carbon fiber layer 40. The reinforcing carbon fiber layer 40 is sandwiched between at least two adjacent layers of the intermediate layers, and the laying angle of the reinforcing carbon fiber layer 40 is the same as that of one of the two adjacent intermediate layers. The present utility model strengthens the part of the seat that receives a large impact. By changing the laying angle and laying thickness of the carbon fiber layer at this part, the strength of this part can be improved, avoiding damage to the seat and enhancing the driving experience.

[0023] Specifically, the seat includes a front side and a back side. The front side refers to the side of the seat that fits the human body, and the back side refers to the side of the seat that faces away from the human body. According to multiple luggage impact tests, after multiple impacts on the seat, the luggage will damage the position corresponding to the human shoulder on the back side of the seat, affecting the safety of the occupants. Therefore, the human shoulder area on the back side of the seat is a structural weak point of the seat and needs to be reinforced. The reinforcement part 20 is set at the position corresponding to the human shoulder on the seat. By changing the laying angle and laying thickness of the carbon fiber structure of the reinforcement part 20, the strength of this area can be improved to avoid damage to the back of the seat caused by the impact and rear collision of the luggage. Of course, this part of the seat is not the only structural weak point. This is just an example. For other weak structures on the seat, such as the parts on both sides of the seat that are used to connect to the seat frame, the strength of the weak point can also be improved by changing the laying angle and laying thickness of the carbon fiber layer at this location.

[0024] In the present invention, the main body 10 and the reinforcement 20 both include multiple stacked main carbon fiber layers 30, which are laid alternately at 0° and 45°, and are connected by thermosetting molding. After multiple seat destruction tests, it can be known that the multiple main carbon fiber layers 30 are laid alternately at 0° and 45°, which can improve the overall strength of the seat; and through the thermosetting molding connection, the multiple main carbon fiber layers 30 form a cross-linked structure during the curing process, which can further improve the overall strength of the seat.

[0025] Furthermore, the reinforcement part 20 also includes at least one reinforcing carbon fiber layer 40 on the main body having multiple main carbon fiber layers 30 alternately laid at 0° and 45°. The main carbon fiber layer 30 includes two side layers located on the outside and multiple middle layers located on the inside. The reinforcing carbon fiber layer 40 is sandwiched in the middle layer of the multiple main carbon fiber layers 30 and is laid at 0° or 45°.

[0026] Specifically, adding at least one layer of reinforcing carbon fiber layer 40 can increase the thickness of the reinforcing part 20, and naturally can also increase the strength of the reinforcing part 20; the main carbon fiber layer 30 and the reinforcing carbon fiber layer 40 are also connected by thermosetting molding. Through the thermosetting molding connection method, the multiple main carbon fiber layers 30 and at least one layer of reinforcing carbon fiber layer 40 form a cross-linked structure during the curing process, which can improve the overall strength of the reinforcing part 20. By sandwiching the reinforcing carbon fiber layer 40 in the middle layer of the main carbon fiber layer 30, the phenomenon of stress concentration at the edge of the reinforcing carbon fiber layer 40 can be effectively avoided. Stress concentration refers to the phenomenon that stress increases significantly in a local area of ​​the material, which often occurs in sharp corners, holes, edges, rigid constraints and adjacent areas. Therefore, the area of ​​the reinforcing carbon fiber layer 40 is designed to be smaller than the area of ​​the main carbon fiber layer 30, and sandwiched in the middle layer, which can avoid stress concentration at the edge of the reinforcing carbon fiber layer 40, so that the reinforcing carbon fiber layer 40 can achieve the effect of increasing the thickness and strength of the reinforcing part 20; if the reinforcing carbon fiber layer 40 is arranged in the edge layer, then the edge of the reinforced carbon fiber layer 40 is prone to stress concentration, causing the reinforced carbon fiber layer 40 to be damaged, and the reinforced carbon fiber layer 40 cannot play a role in improving the strength of the reinforcement part 20; laying the reinforced carbon fiber layer 40 at 0° or 45°, which is the same as the laying angle of one of the two adjacent main carbon fiber layers 30, can improve the overall strength of the seat reinforcement part 20. According to the damage form of the seat, most of the impact force will cause a positive damage to the seat. Therefore, it is preferred to set the laying angle of the reinforced carbon fiber layer 40 to 0 degrees, which can improve the positive strength of the reinforcement part 20.

[0027] See also Figure 3 In the present invention, each main carbon fiber layer 30 includes carbon filaments 50 and woven cloth. The carbon filaments 50 are arranged at 0° and 90°. The woven cloth adopts T700 model woven cloth. The woven cloth serves as the substrate of the carbon filaments 50 and forms a main carbon fiber layer 30 with a cloth-like structure together with the carbon filaments 50. The thickness of each main carbon fiber layer 30 is 0.455 mm.

[0028] Furthermore, each reinforcing carbon fiber layer 40 also adopts the same structure as the main carbon fiber layer 30, and each reinforcing carbon fiber layer 40 also includes carbon filaments 50 and woven cloth. The carbon filaments 50 are arranged at 0° and 90°, and the woven cloth adopts T700 model woven cloth. The woven cloth serves as the substrate of the carbon filaments 50, and together with the carbon filaments 50, it forms a reinforcing carbon fiber layer 40 with a cloth-like structure; the thickness of each reinforcing carbon fiber layer 40 is also 0.455mm. After many tests, it has been proved that when the reinforcing carbon fiber layer 40 adopts the same material and structure as the main carbon fiber layer 30, the overall fusion of the reinforcing part 20 can be improved. During thermosetting molding, the fusion between the main carbon fiber layer 30 and the reinforcing carbon fiber layer 40 is better, which can improve the overall aesthetics of the seat.

[0029] Please also read Figure 2 As shown in Table 1, in one embodiment of the utility model, the main body 10 and the reinforcement 20 each include 5 stacked main carbon fiber layers 30, which are: a first main carbon fiber layer, a second main carbon fiber layer, a third main carbon fiber layer, a fourth main carbon fiber layer, and a fifth main carbon fiber layer, wherein the first main carbon fiber layer and the fifth main carbon fiber layer are edge layers, the second main carbon fiber layer, the third main carbon fiber layer, and the fourth main carbon fiber layer are middle layers, and the second main carbon fiber layer and the fourth main carbon fiber layer are in contact with the first main carbon fiber layer and the fifth main carbon fiber layer, respectively, and the third main carbon fiber layer is located between the second main carbon fiber layer and the fourth main carbon fiber layer, the first main carbon fiber layer, the third main carbon fiber layer, and the fifth main carbon fiber layer are laid at 0°, and the second main carbon fiber layer and the fourth main carbon fiber layer are laid at 45°.

[0030] Table 1 Laying method of 5 carbon fiber layers

[0031] Number of layers Laying angle Thickness Material First main carbon fiber layer 0° 0.455 mm T700 Second main carbon fiber layer 45° 0.455 mm T700 Third main carbon fiber layer 0° 0.455 mm T700 Fourth main carbon fiber layer 45° 0.455 mm T700 Fifth main carbon fiber layer 0° 0.455 mm T700

[0032] Please refer to Table 2. In one embodiment of the present invention, the reinforcement part 20 also includes 4 stacked reinforced carbon fiber layers 40, which are the first reinforced carbon fiber layer, the second reinforced carbon fiber layer, the third reinforced carbon fiber layer, and the fourth reinforced carbon fiber layer, respectively. The first reinforced carbon fiber layer and the second reinforced carbon fiber layer are in contact with each other and are sandwiched between the second main carbon fiber layer and the third main carbon fiber layer, and the third reinforced carbon fiber layer and the fourth reinforced carbon fiber layer are in contact with each other and are sandwiched between the third main carbon fiber layer and the fourth main carbon fiber layer; and the first reinforced carbon fiber layer, the second reinforced carbon fiber layer, the third reinforced carbon fiber layer, and the fourth reinforced carbon fiber layer are all laid at 0°. It should be noted that the laying method of the four layers of reinforced carbon fiber layers is not limited to this, and can be set as needed. For example, the four layers of reinforced carbon fiber layers can be sandwiched between the second main carbon fiber layer and the third main carbon fiber layer, or the first reinforced carbon fiber layer can be sandwiched between the second main carbon fiber layer and the third main carbon fiber layer, and the second reinforced carbon fiber layer, the third reinforced carbon fiber layer, and the fourth reinforced carbon fiber layer can be sandwiched between the third main carbon fiber layer and the fourth main carbon fiber layer. As long as the reinforced carbon fiber layer 40 is sandwiched in the middle layer of the multi-layer main carbon fiber layer 30, it will suffice. Of course, the reinforced carbon fiber layer 40 can also have only one layer. When there is only one layer, it is also sufficient as long as the reinforced carbon fiber layer 40 is sandwiched in the middle layer of the multi-layer main carbon fiber layer 30, which will not be described one by one here.

[0033] Table 2 Laying method of 4 layers of reinforced carbon fiber layers

[0034] Number of layers Laying angle Thickness Material First main carbon fiber layer 0° 0.455 mm T700 Second main carbon fiber layer 45° 0.455 mm T700 First reinforcing carbon fiber layer 0° 0.455 mm T700 Second reinforcing carbon fiber layer 0° 0.455 mm T700 Third main carbon fiber layer 0° 0.455 mm T700 Third reinforcing carbon fiber layer 0° 0.455 mm T700 Fourth reinforcing carbon fiber layer 0° 0.455 mm T700 Fourth main carbon fiber layer 45° 0.455 mm T700 Fifth main carbon fiber layer 0° 0.455 mm T700

[0035] From the above description, it can be known that the carbon fiber seat provided by the utility model is reinforced for the weak positions of the seat structure. According to the analysis of the results of the seat destruction test, the multi-layer main carbon fiber layers 30 of the seat main body 10 and the reinforcement part 20 are laid alternately at 0° and 45°, which can improve the overall strength of the seat. On this main body, at least one layer of reinforced carbon fiber layer 40 is added to the reinforcement part 20, which is the weak position of the seat, to increase the thickness of the reinforcement part 20, and the reinforced carbon fiber layer 40 is sandwiched in the middle layer of the multi-layer main carbon fiber layer 30, which effectively avoids the phenomenon of local stress concentration of the reinforced carbon fiber layer 40, and further improves the strength and stiffness of the reinforcement part 20. According to the damage form of the seat, the laying angle of the reinforced carbon fiber layer 40 is set to 0 degrees, which can improve the positive strength of the reinforcement part 20; while maximizing the freedom of seat shape design, the utility model can improve the strength of the weak points of the seat, avoid damage to the seat, and improve the driving experience.

[0036] The utility model also provides a vehicle, including the carbon fiber seat as described above. For other technical features of the vehicle, please refer to the prior art and will not be described in detail here.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A carbon fiber seat, characterized in that: The invention comprises a main body (10) and a reinforcement part (20), wherein the main body (10) and the reinforcement part (20) are both provided with a plurality of stacked main carbon fiber layers (30), wherein the plurality of main carbon fiber layers (30) comprise two side layers located on the outside and a plurality of middle layers located on the inside, and the reinforcement part (20) further comprises at least one reinforcement carbon fiber layer (40), wherein the reinforcement carbon fiber layer (40) is sandwiched between at least two adjacent layers of the middle layer, and the laying angle of the reinforcement carbon fiber layer (40) is the same as the laying angle of one of the two adjacent middle layers.

2. The carbon fiber seat according to claim 1, characterized in that: The area of ​​the reinforcing carbon fiber layer (40) is smaller than the area of ​​the main carbon fiber layer (30).

3. The carbon fiber seat according to claim 1 or 2, characterized in that: The multiple layers of the main carbon fiber layers (30) are connected by thermosetting molding, and the multiple layers of the main carbon fiber layers (30) and at least one layer of the reinforcing carbon fiber layer (40) are connected by thermosetting molding.

4. The carbon fiber seat according to claim 1, characterized in that: The plurality of stacked main carbon fiber layers (30) are laid alternately at 0° and 45°; and / or at least one layer of the reinforcing carbon fiber layer (40) is laid at 0° or 45°.

5. The carbon fiber seat according to claim 1, characterized in that: The main carbon fiber layer (30) comprises carbon filaments (50) and woven fabric, the carbon filaments (50) are arranged at 0° and 90°, and the woven fabric serves as a substrate for the carbon filaments (50) and forms the main carbon fiber layer (30) together with the carbon filaments (50).

6. The carbon fiber seat according to claim 1, characterized in that: The reinforced carbon fiber layer (40) comprises carbon filaments (50) and woven fabric, the carbon filaments (50) are arranged at 0° and 90°, and the woven fabric serves as a substrate for the carbon filaments (50) and forms the reinforced carbon fiber layer (40) together with the carbon filaments (50).

7. The carbon fiber seat according to claim 1 or 4, characterized in that: The main body (10) and the reinforcement (20) each include five stacked main carbon fiber layers (30), which are, in order, a first main carbon fiber layer, a second main carbon fiber layer, a third main carbon fiber layer, a fourth main carbon fiber layer, and a fifth main carbon fiber layer; the first main carbon fiber layer and the fifth main carbon fiber layer are edge layers; the second main carbon fiber layer, the third main carbon fiber layer, and the fourth main carbon fiber layer are middle layers; the first main carbon fiber layer, the third main carbon fiber layer, and the fifth main carbon fiber layer are laid at 0°; and the second main carbon fiber layer and the fourth main carbon fiber layer are laid at 45°.

8. The carbon fiber seat according to claim 7, characterized in that: The reinforcement part (20) further comprises four stacked reinforcement carbon fiber layers (40), which are a first reinforcement carbon fiber layer, a second reinforcement carbon fiber layer, a third reinforcement carbon fiber layer, and a fourth reinforcement carbon fiber layer, respectively; the first reinforcement carbon fiber layer, the second reinforcement carbon fiber layer, the third reinforcement carbon fiber layer, and the fourth reinforcement carbon fiber layer are laid at 0°.

9. The carbon fiber seat according to claim 8, characterized in that: The first reinforced carbon fiber layer and the second reinforced carbon fiber layer are sandwiched between the second main carbon fiber layer and the third main carbon fiber layer, and the third reinforced carbon fiber layer and the fourth reinforced carbon fiber layer are sandwiched between the third main carbon fiber layer and the fourth main carbon fiber layer.

10. A vehicle, characterized in that: The invention comprises a carbon fiber seat as described in any one of claims 1 to 9.

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