High-strength light-weight seat cushion structure and electric vehicle

Abstract

The utility model provides a kind of high-strength light seat cushion structure and electric vehicle, it is related to electric vehicle parts technical field, the high-strength light seat cushion structure includes high-strength light metal seat cushion body and high-strength light metal support assembly, the high-strength light metal seat cushion body is set to the cavity structure of open bottom;The high-strength light metal support assembly is arranged in the high-strength light metal seat cushion body inside, the high-strength light metal support assembly is connected with electric vehicle frame;The utility model uses high-strength light metal material and cavity structure seat cushion body and uses high-strength light metal material support assembly to mutually cooperate, not only can effectively guarantee the overall strength of seat cushion structure, improve impact resistance and use durability, moreover have the advantage of light quality, can effectively reduce the amount of plastic parts, meet the demand of new national standard to the proportion of vehicle plastic parts, simultaneously have heat dissipation effect, can reduce fire risk, reduce toxic gas emission, guarantee the use safety of vehicle.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle parts technology, specifically to a high-strength lightweight seat cushion structure and an electric vehicle. Background Technology

[0002] The seat structure is an essential component of electric bicycles. Currently, the seats used in electric bicycles typically employ a traditional structure with a plastic base plate, sponge filling, and leather covering. This structure suffers from at least the following technical defects:

[0003] 1. Insufficient mechanical properties of traditional structures: The plastic base plate at the bottom layer has insufficient impact resistance, low strength, is easily deformed, and has limited durability.

[0004] 2. Traditional structures use plastic base plates, which are heavy and account for a large proportion of the total weight of plastic parts in the vehicle. This results in the total weight of plastic parts in the vehicle being seriously excessive, failing to meet the strict requirements of the new national standard (GB17761—2024) for the total weight of electric bicycles (≤63kg) and the proportion of plastic parts (≤5.5% of vehicle weight) (to be implemented on September 1, 2025).

[0005] 3. Significant safety hazards: Plastic parts have a low ignition point and release toxic gases when burning. They also have poor heat dissipation and poor fire safety performance. Utility Model Content

[0006] The purpose of this utility model is to provide a high-strength, lightweight seat cushion structure and an electric vehicle to solve the aforementioned technical problems in the prior art; the preferred technical solutions among the many technical solutions provided by this utility model can produce many technical effects, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides a high-strength lightweight seat cushion structure, including a high-strength lightweight metal seat cushion body and a high-strength lightweight metal support assembly, wherein: the high-strength lightweight metal seat cushion body is configured as a cavity structure with an open bottom; the high-strength lightweight metal support assembly is disposed inside the high-strength lightweight metal seat cushion body, and the high-strength lightweight metal support assembly is connected to the electric vehicle frame.

[0009] Preferably, the high-strength lightweight metal seat cushion body and the high-strength lightweight metal support assembly are made of sheet metal, magnesium alloy, or aluminum alloy.

[0010] Preferably, the high-strength lightweight metal support assembly includes a first support frame and a second support frame, wherein: the first support frame is fixedly disposed inside the high-strength lightweight metal seat cushion body and located at the front side; the second support frame is fixedly disposed inside the high-strength lightweight metal seat cushion body and located at the rear side.

[0011] Preferably, the high-strength lightweight metal support assembly includes a third support frame, which is fixedly mounted on the seat bucket center cover of the electric vehicle frame, and the first support frame is rotatably connected to the third support frame.

[0012] Preferably, the first support frame is provided with mounting ear plates opposite each other, and a flip shaft is provided between the two mounting ear plates. The third support frame is rotatably mounted on the flip shaft. The third support frame is provided with a limiting part. When the first support frame is rotated to the flip position, the first support frame abuts against the limiting part.

[0013] Preferably, the second support frame is provided with a first mounting part for installing a locking member, which is used to lock the high-strength lightweight metal seat body to the position of the bottom barrel center cover.

[0014] Preferably, the second support frame is provided with a second mounting part, which is used to install a buffer pad.

[0015] Preferably, the first support frame, the second support frame, and the third support frame are all provided with reinforcing structures; the reinforcing structures include flanged structures located at the edges and / or concave rib structures located on the surface of the plate.

[0016] Preferably, both the first support frame and the second support frame are provided with a weight-reducing structure; the weight-reducing structure includes weight-reducing holes.

[0017] This utility model provides an electric vehicle, including any of the aforementioned high-strength lightweight seat cushion structures.

[0018] The high-strength, lightweight seat cushion structure and electric vehicle provided by this utility model have at least the following beneficial effects:

[0019] The high-strength lightweight seat cushion structure includes a high-strength lightweight metal seat cushion body and a high-strength lightweight metal support assembly. The high-strength lightweight metal seat cushion body is the main structure of the seat cushion, and the high-strength lightweight metal support assembly is connected to the electric vehicle frame and is used to support the high-strength lightweight metal seat cushion body.

[0020] The high-strength, lightweight metal seat cushion body has an open-bottom cavity structure. This cavity structure effectively reduces the total weight of the seat cushion while ensuring its structural strength and load-bearing capacity.

[0021] The high-strength lightweight metal support component is located inside the high-strength lightweight metal seat cushion. It is made of high-strength lightweight metal material, which has the advantages of high strength and light weight, meets the requirements of the new national standards and regulations, and can reduce fire risk, improve personal safety, and improve impact resistance and durability.

[0022] The seat cushion body and support components of this utility model are both made of high-strength, lightweight metal. Combined with the cavity structure of the seat cushion body, it has the advantages of high strength and light weight. It not only meets the strict requirements of the new national standard, but also effectively improves impact resistance and durability. At the same time, it facilitates heat dissipation, effectively reducing the risk of fire and the emission of toxic gases, thereby improving safety in use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the high-strength lightweight seat cushion structure of this utility model from one perspective;

[0025] Figure 2 This is a structural schematic diagram of the high-strength lightweight seat cushion structure of this utility model from another perspective;

[0026] Figure 3 This is an exploded view of the high-strength lightweight metal seat cushion body and the high-strength lightweight metal support assembly of this utility model.

[0027] Figure 4 This is a schematic diagram of the structure of the first support frame and the second support frame of this utility model;

[0028] Figure 5 This is a structural schematic diagram of the second support frame of this utility model;

[0029] Figure 6 This is a schematic diagram of the first support frame of this utility model in its initial position (with the seat cushion body closed);

[0030] Figure 7 This is a schematic diagram of the first support frame of this utility model in the flipped position;

[0031] Figure 8 This is a schematic diagram of the connection between the high-strength lightweight seat cushion structure and the center cover of the bottom tube of this utility model from one perspective.

[0032] Figure 9This is a schematic diagram showing the connection between the high-strength, lightweight seat cushion structure and the center cover of the bottom barrel from another perspective.

[0033] Figure Labels

[0034] 1. High-strength lightweight metal seat cushion body; 2. High-strength lightweight metal support assembly; 21. First support frame; 22. Second support frame; 23. Third support frame; 231. Limiting flange; 24. Flip shaft; 25. Flip structure; 26. Concave rib structure; 27. Weight reduction hole; 3. Locking component; 4. Buffer pad; 5. Bottom barrel center cover. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] Example 1:

[0037] This utility model provides a high-strength, lightweight seat cushion structure, referenced Figures 1 to 9 As shown, the high-strength lightweight seat cushion structure includes a high-strength lightweight metal seat cushion body 1 and a high-strength lightweight metal support assembly 2.

[0038] Both the high-strength lightweight metal seat cushion body 1 and the high-strength lightweight metal support component 2 are made of high-strength lightweight metal. The high-strength lightweight metal seat cushion body 1 is designed as a cavity structure with an open bottom. The high-strength lightweight metal support component 2 is located inside the high-strength lightweight metal seat cushion body 1 and is connected to the electric vehicle frame to support the seat cushion body.

[0039] In practical use, the seat body, made of high-strength lightweight metal and featuring a cavity structure, works in conjunction with support components also made of high-strength lightweight metal. This not only effectively ensures the overall strength of the seat structure, improving impact resistance and durability, but also offers the advantage of lightweight construction. This reduces the amount of plastic parts used, meeting the stringent requirements of the new national standard for the proportion of plastic parts in electric vehicles. Furthermore, it facilitates heat dissipation, allowing the battery heat under the seat to dissipate promptly, reducing the risk of fire and minimizing the emission of toxic gases during combustion, thus effectively ensuring the safety of the vehicle.

[0040] Example 2:

[0041] Example 1 is based on Example 1:

[0042] like Figures 1 to 9As shown, the high-strength lightweight metal seat cushion body 1 and the high-strength lightweight metal support assembly 2 are made of sheet metal, magnesium alloy or aluminum alloy.

[0043] The sheet metal parts are made of high-strength sheet metal, formed by stamping, bending and welding, and the surface is treated with anti-corrosion treatment (such as electrophoresis and spraying), which has the advantages of high rigidity and high impact resistance.

[0044] The magnesium alloy parts and the aluminum alloy parts have good heat dissipation and damping properties. Their surfaces are treated with anti-oxidation and coating, and they also have a certain degree of decorative properties.

[0045] Specifically, DC01 sheet metal parts, magnesium alloy parts with grade AZ91D, or aluminum alloy parts with grade A380 can be used.

[0046] Preferably, the high-strength, lightweight metal seat cushion body 1 is a 0.8mm DC01 sheet metal part, which is formed by mold and polishing.

[0047] As an optional implementation, the high-strength lightweight metal support assembly 2 includes a first support frame 21 and a second support frame 22.

[0048] The first support frame 21 is fixedly installed inside the high-strength lightweight metal seat cushion body 1 and located at the front; the second support frame 22 is fixedly installed inside the high-strength lightweight metal seat cushion body 1 and located at the rear.

[0049] Specifically, the first support frame 21 is a sheet metal bracket made of 2.5mm cold-rolled steel plate, and is Z-shaped in shape. It is welded to the interior of the high-strength lightweight metal seat cushion body 1.

[0050] The second support frame 22 is a sheet metal bracket made of 2mm thick cold-rolled steel plate. It is U-shaped and the two ends of the opening are welded to the interior of the high-strength lightweight metal seat cushion body 1.

[0051] The first support frame 21 and the second support frame 22 work together to support the seat cushion body from the front and rear sides. The structure is sturdy and can effectively support the high-strength, lightweight metal seat cushion body 1.

[0052] As an optional implementation, the high-strength lightweight metal support assembly 2 includes a third support frame 23, which is fixedly mounted on the bottom center cover 5 of the electric vehicle. Specifically, the third support frame 23 is a sheet metal bracket, which is connected to the bottom center cover 5 by threaded fasteners.

[0053] The first support frame 21 and the third support frame 23 are rotatably connected. Thus, the first support frame 21 and the second support frame 22 are equivalent to a hinge structure, which can realize the flipping action of the seat cushion structure.

[0054] As an optional implementation, the first support frame 21 has two mounting ears arranged opposite each other, and a flip shaft 24 is provided between the two mounting ears. The third support frame 23 has a fixing hole, and the third support frame 23 is rotatably mounted on the flip shaft 24 through the fixing hole.

[0055] The third support frame 23 is provided with a limiting part, which is a limiting flange 231.

[0056] When the first support frame 21 is in the initial position, the high-strength lightweight metal seat cushion body 1 is in a closed state, closed onto the bottom barrel center cover 5. When the first support frame 21 rotates to the flip position, the first support frame 21 abuts against the limiting part.

[0057] The setting of the limiting part can effectively limit the flipping angle of the first support frame 21, thereby limiting the flipping opening of the high-strength lightweight metal seat body 1.

[0058] As an optional implementation, the second support frame 22 is provided with a first mounting part for mounting the locking member 3.

[0059] The first mounting part is configured as a first mounting hole, and the locking part 3 is configured as a locking hook. A threaded fastener is used to pass through the first mounting hole, thereby installing the locking hook on the second support frame 22. The locking hook cooperates with the lock installed on the frame to lock the high-strength lightweight metal seat cushion body 1 to the position of the bottom barrel center cover 5.

[0060] As an optional implementation, the second support frame 22 is provided with a second mounting part, which is used to mount the buffer pad 4.

[0061] The second mounting part is configured as a second mounting hole, and the buffer pad 4 is configured as a buffer rubber pad. Threaded fasteners are used to pass through the second mounting hole to install the buffer rubber pad onto the second support frame 22. The buffer pad 4 plays a cushioning role when the seat cushion structure flips.

[0062] As an optional implementation, the first support frame 21, the second support frame 22 and the third support frame 23 are all provided with reinforcing structures.

[0063] The reinforcing structure includes a flanged structure 25 located at the edge and / or a concave rib structure 26 located at the surface of the plate.

[0064] By strengthening the structure, the structural strength can be effectively improved while ensuring that the high-strength lightweight metal support component 2 has a relatively light weight.

[0065] Specifically, the edges of the first support frame 21, the second support frame 22 and the third support frame 23 are all provided with flanged structures 25, and the plate surface of the second support frame 22 is provided with concave rib structures 26.

[0066] As an optional implementation, both the first support frame 21 and the second support frame 22 are provided with weight reduction structures;

[0067] The weight-reducing structure includes weight-reducing holes 27.

[0068] The weight reduction holes 27 are set in the non-load-bearing area of ​​the support frame plate to further reduce the mass of the support components while ensuring structural strength.

[0069] Example 3

[0070] Example 3 is based on Example 2:

[0071] This utility model provides an electric vehicle, which includes the high-strength lightweight seat cushion structure.

[0072] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0073] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0074] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-strength, lightweight seat cushion structure, characterized in that, It includes a high-strength, lightweight metal seat cushion body and a high-strength, lightweight metal support assembly, wherein: The high-strength, lightweight metal seat cushion body is configured as a cavity structure with an open bottom; The high-strength lightweight metal support assembly is disposed inside the high-strength lightweight metal seat cushion body, and the high-strength lightweight metal support assembly is connected to the electric vehicle frame.

2. The high-strength, lightweight seat cushion structure according to claim 1, characterized in that, The high-strength lightweight metal seat cushion body and the high-strength lightweight metal support assembly are made of sheet metal, magnesium alloy, or aluminum alloy.

3. The high-strength, lightweight seat cushion structure according to claim 1, characterized in that, The high-strength, lightweight metal support assembly includes a first support frame and a second support frame, wherein: The first support frame is fixedly installed inside the high-strength lightweight metal seat cushion body and is located at the front side; The second support frame is fixedly installed inside the high-strength, lightweight metal seat cushion body and is located at the rear side.

4. The high-strength, lightweight seat cushion structure according to claim 3, characterized in that, The high-strength lightweight metal support assembly includes a third support frame, which is fixedly mounted on the seat bucket center cover of the electric vehicle frame, and the first support frame is rotatably connected to the third support frame.

5. The high-strength, lightweight seat cushion structure according to claim 4, characterized in that, The first support frame is provided with mounting ear plates opposite each other, and a flip shaft is provided between the two mounting ear plates. The third support frame is rotatably mounted on the flip shaft. The third support frame is provided with a limiting part. When the first support frame is rotated to the flip position, the first support frame abuts against the limiting part.

6. The high-strength, lightweight seat cushion structure according to claim 4, characterized in that, The second support frame is provided with a first mounting part for installing a locking component, which is used to lock the high-strength lightweight metal seat body to the position of the bottom barrel center cover.

7. The high-strength, lightweight seat cushion structure according to claim 4, characterized in that, The second support frame is provided with a second mounting part, which is used to install a buffer pad.

8. The high-strength, lightweight seat cushion structure according to claim 4, characterized in that, The first support frame, the second support frame, and the third support frame are all provided with reinforcing structures; The reinforcing structure includes a flanged structure located at the edge and / or a concave rib structure located at the surface of the plate.

9. The high-strength, lightweight seat cushion structure according to claim 4, characterized in that, Both the first support frame and the second support frame are equipped with weight reduction structures; The weight-reducing structure includes weight-reducing holes.

10. An electric vehicle, characterized in that, The high-strength, lightweight seat cushion structure includes any one of claims 1 to 9.

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