An electrically controlled stiffness-adjustable coil spring device

Abstract

The utility model relates to the field of automobile manufacturing, concretely relates to a screw spring device with electric control rigidity, which comprises spring support, spring gland, helical spring, upper coil and lower coil, the spring support is middle stick body, and the lower part is provided with a cover; the upper part and the lower part of helical spring are fixed with helical coil respectively, the upper coil and the lower coil are independently powered and powered off and are controlled through independent controller respectively, the helical spring is installed on the spring support, and the upper end is pressed tightly by the spring gland, the utility model has the advantages of low cost, strong reliability, convenient installation and the like.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, specifically to an electrically controlled adjustable stiffness spring device. Background Technology

[0002] The suspension is a crucial assembly in modern automobiles, elastically connecting the chassis and axles. Its primary task is to transmit all forces and torques between the wheels and the chassis, and to mitigate impacts from uneven road surfaces transmitted to the chassis or body. Automotive suspension springs play a role in cushioning road excitation. For optimal ride comfort, different vehicle weights require different suspension spring stiffnesses. However, due to cost constraints, most current automobiles use non-variable coil springs. Variable stiffness suspensions, primarily air springs, utilize the injection and release of air to adjust suspension stiffness. However, air springs are expensive to manufacture, especially demanding in terms of component manufacturing. Furthermore, air springs are relatively large, taking up considerable vehicle space and imposing numerous limitations on their placement. Utility Model Content

[0003] To solve the problem of non-adjustable stiffness of the aforementioned helical springs, this utility model proposes an electrically controlled adjustable stiffness helical spring device, the specific technical solution of which is as follows: An electrically controlled, stiffness-adjustable helical spring device includes a spring support, a spring cover, a helical spring, an upper coil, and a lower coil. The spring support is a central rod with a cover at its lower part. The helical coil, upper coil, and lower coil are fixed at the upper and lower parts of the helical spring, respectively. The upper and lower coils are independently powered and de-energized, and are controlled by independent controllers. The helical spring is mounted on the spring support, and its upper end is pressed by the spring cover.

[0004] Furthermore, the helical spring is made of a non-conductive material.

[0005] Furthermore, the helical spring is made of glass fiber.

[0006] Furthermore, the spring strut is connected to the lower vehicle body, and the spring cover is connected to the upper vehicle body.

[0007] When the car is in motion, the energization and de-energization of the coil can be adjusted according to the driving conditions. When the upper and lower coils are de-energized, the helical spring is a regular spring; when the weight of the vehicle changes or the road surface is rough, the controller can control the magnitude and direction of the current in the upper and lower coils, and adjust the stiffness of the helical spring using electromagnetic principles. This invention has the advantages of low cost, high reliability, and convenient installation. Attached Figure Description

[0008] Figure 1 This is an exploded view of the device of this utility model; Figure 2This is a schematic diagram of the wire assembly of this utility model; Figure 3 This is an assembly drawing of the device of this utility model.

[0009] Figure label: 1-Spring support, 2-Spring cap, 3-Helical spring, 4-Upper coil, 5-Lower coil. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] An electrically controlled, stiffness-adjustable helical spring device includes a spring support 1, a spring cover 2, a helical spring 3, an upper coil 4, and a lower coil 5. The spring support 1 is a central rod with a support cover at the bottom. Helical coils 4 and 5 are fixed to the upper and lower parts of the helical spring, respectively. The upper and lower coils are independently powered and de-energized, and are controlled by independent controllers. The helical spring is mounted on the spring support, and its upper end is pressed by the spring cover.

[0012] The helical spring is made of non-conductive material. The helical spring is made of fiberglass. The spring support is connected to the lower vehicle body, and the spring cap is connected to the upper vehicle body.

[0013] When the car is in motion, the energization and de-energization of the coils can be adjusted according to the driving conditions. When the upper and lower coils are de-energized, the helical spring is a normal spring; when the weight of the vehicle changes or the road surface is rough, the controller can control the magnitude and direction of the current in the upper and lower coils, and adjust the stiffness of the helical spring using electromagnetic principles.

[0014] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A solenoid spring device with adjustable electronic stiffness, characterized in that: The device includes a spring support, a spring cover, a helical spring, an upper coil, and a lower coil. The spring support is a central rod with a cover at the bottom. The helical coil, upper coil, and lower coil are fixed at the upper and lower parts of the helical spring, respectively. The upper and lower coils are independently powered and de-energized, and are controlled by independent controllers. The helical spring is mounted on the spring support, and its upper end is pressed by the spring cover.

2. The electrically controlled adjustable stiffness spring device according to claim 1, characterized in that: The helical spring is made of a non-conductive material.

3. The electrically controlled adjustable stiffness spring device according to claim 1, characterized in that: The helical spring is made of fiberglass.

4. The electrically controlled adjustable stiffness spring device according to claim 1, characterized in that: The spring strut connects to the lower vehicle body, and the spring cover connects to the upper vehicle body.

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