Magnetorheological damper capable of keeping temperature

Abstract

The invention discloses a magneto-rheological shock absorber capable of keeping temperature, and relates to the technical field of magneto-rheological shock absorbers, the magneto-rheological shock absorber comprises a shock absorber cylinder barrel and a heating piston assembly, a piston rod is arranged in the shock absorber cylinder barrel in a penetrating mode, the heating piston assembly is connected to the outer wall of the bottom end of the piston rod, and a magneto-rheological control coil is arranged in a piston head. A heating coil box is arranged at the bottom of the piston head, and a temperature sensor is arranged at the bottom of the heating coil box. According to the magneto-rheological shock absorber capable of keeping the temperature, the temperature of the magneto-rheological liquid in the magneto-rheological shock absorber is monitored in real time when a vehicle stops, and the magneto-rheological liquid is heated when the temperature of the magneto-rheological liquid is lower than a threshold value, so that the magneto-rheological liquid is always within the optimal temperature threshold value range; therefore, when the vehicle is started, the magneto-rheological shock absorber is in the optimal shock absorption performance state, it is not required that the magneto-rheological shock absorber is subjected to performance recovery after the vehicle is started, and therefore a good shock absorption effect is provided for people in the vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of magnetorheological shock absorbers, in particular to a temperature-maintaining magnetorheological shock absorber. Background Art

[0002] The magnetorheological shock absorber uses magnetorheological fluid as the core medium. When there is no magnetic field, the tiny magnetic particles in the magnetorheological fluid are evenly dispersed, the liquid exhibits low-viscosity Newtonian fluid characteristics, and the shock absorber has a small damping force. When there is a strong magnetic field, the magnetic particles will polarize and form a chain structure, causing the liquid to exhibit a high viscosity and low fluidity state, and the shock absorber's damping force will increase, thereby achieving effective control of vibration.

[0003] The magnetorheological fluid of existing magnetorheological shock absorbers performs poorly at low temperatures. After the vehicle is started, the magnetorheological shock absorbers often cannot immediately restore the shock absorption performance, resulting in reduced initial shock absorption performance when the vehicle is started in a low temperature environment.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a magnetorheological shock absorber that maintains temperature is proposed. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a temperature-maintaining magnetorheological shock absorber, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a temperature-maintaining magnetorheological shock absorber, comprising a shock absorber cylinder and a heating piston assembly, wherein a piston rod is passed through the interior of the shock absorber cylinder, and the heating piston assembly is connected to the outer wall of the bottom end of the piston rod, and the heating piston assembly comprises a piston head, a magnetorheological control coil, a heating coil box and a temperature sensor, wherein a magnetorheological control coil is arranged inside the piston head, and a heating coil box is arranged at the bottom of the piston head, and a temperature sensor is arranged at the bottom of the heating coil box.

[0007] Furthermore, a magnetorheological control wire is passed through the interior of the piston rod, and the bottom of the magnetorheological control wire is connected to the magnetorheological control coil.

[0008] Furthermore, a coil wire is passed through the interior of the piston rod, and the bottom of the coil wire is connected to the heating coil box.

[0009] Furthermore, a sensor wire is passed through the interior of the piston rod, and the sensor wire is connected to a temperature sensor.

[0010] The present invention provides a temperature-maintaining magnetorheological shock absorber, which has the following beneficial effects:

[0011] 1. The temperature-maintaining magnetorheological shock absorber monitors the temperature of the magnetorheological fluid in the magnetorheological shock absorber in real time when the vehicle stops, and heats the magnetorheological fluid when its temperature is lower than the threshold value, so that the magnetorheological fluid is always within the optimal temperature threshold range. Thus, the magnetorheological shock absorber is in the optimal shock absorption performance state at the same time when the vehicle starts, without the need to spend time for the magnetorheological shock absorber to recover its performance after the vehicle starts, thereby providing a good shock absorption effect for the passengers in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. is a schematic structural view of the shock absorber cylinder of a temperature-maintaining magnetorheological shock absorber according to the present invention;

[0013] Figure 2 FIG. is a schematic structural view of the piston head of a temperature-maintaining magnetorheological shock absorber according to the present invention;

[0014] Figure 3 FIG. is a schematic structural view of the magnetorheological control coil of a temperature-maintaining magnetorheological shock absorber according to the present invention;

[0015] Figure 4 FIG. is a schematic structural view of the magnetorheological control wire, coil wire, and sensor wire of a temperature-maintaining magnetorheological shock absorber according to the present invention.

[0016] In the figures: 1, shock absorber cylinder; 2, piston rod; 3, heating piston assembly; 301, piston head; 302, magnetorheological control coil; 303, heating coil box; 304, temperature sensor; 4, magnetorheological control wire; 5, coil wire; 6, sensor wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0018] As Figures 1 - 4As shown in the figure, the present invention provides a technical solution: a temperature-maintaining magnetorheological shock absorber, which includes a shock absorber cylinder 1 and a heating piston assembly 3. A piston rod 2 is disposed through the interior of the shock absorber cylinder 1. The heating piston assembly 3 is connected to the outer wall of the bottom end of the piston rod 2. The heating piston assembly 3 includes a piston head 301, a magnetorheological control coil 302, a heating coil box 303, and a temperature sensor 304. The magnetorheological control coil 302 is disposed inside the piston head 301, and the heating coil box 303 is disposed at the bottom of the piston head 301. The temperature sensor 304 is disposed at the bottom of the heating coil box 303. A magnetorheological control wire 4 is disposed through the interior of the piston rod 2, and the bottom of the magnetorheological control wire 4 is connected to the magnetorheological control coil 302. A coil wire 5 is also disposed through the interior of the piston rod 2, and the bottom of the coil wire 5 is connected to the heating coil box 303. A sensor wire 6 is also disposed through the interior of the piston rod 2, and the sensor wire 6 is connected to the temperature sensor 304;

[0019] The specific operation is as follows. The magnetorheological control wire 4, the coil wire 5, and the sensor wire 6 are all connected to the vehicle battery. When the magnetorheological shock absorber is not working and in a low-temperature environment, the temperature sensor 304 monitors the temperature inside the shock absorber cylinder 1 in real time, that is, monitors the temperature of the magnetorheological fluid. If the temperature is lower than the threshold value, the battery supplies power to the coil inside the heating coil box 303 through the coil wire 5 to make it heat up, and uses the heat generated by the heating coil to heat the magnetorheological fluid, so that the magnetorheological fluid always remains within the optimal working temperature threshold range. Thus, by monitoring the temperature of the magnetorheological fluid in the magnetorheological shock absorber in real time when the vehicle stops and heating it when the temperature of the magnetorheological fluid is lower than the threshold value, the magnetorheological fluid always remains within the optimal temperature threshold range. Thus, when the vehicle starts, the magnetorheological shock absorber is in the optimal shock absorption performance state, and there is no need to wait for time after the vehicle starts for the magnetorheological shock absorber to recover its performance, thereby providing a good shock absorption effect for the vehicle occupants.

[0020] In summary, for this temperature-maintaining magnetorheological shock absorber, during use, first, the magnetorheological control wire 4, the coil wire 5, and the sensor wire 6 are all connected to the vehicle battery. When the magnetorheological shock absorber is not working and in a low-temperature environment, the temperature sensor 304 monitors the temperature inside the shock absorber cylinder 1 in real time, that is, monitors the temperature of the magnetorheological fluid. If the temperature is lower than the threshold value, the battery supplies power to the coil inside the heating coil box 303 through the coil wire 5 to make it heat up, and uses the heat generated by the heating coil to heat the magnetorheological fluid, so that the magnetorheological fluid always remains within the optimal working temperature threshold range. Thus, when the vehicle starts, the magnetorheological shock absorber is in the optimal shock absorption performance state.

[0021] The embodiments of the present invention are provided by way of example and description, and are not exhaustive or limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A temperature-maintaining magnetorheological shock absorber, comprising a shock absorber cylinder (1) and a heating piston assembly (3), characterized in that: A piston rod (2) is inserted into the interior of the shock absorber cylinder (1); the heating piston assembly (3) is connected to the outer wall of the bottom end of the piston rod (2); the heating piston assembly (3) comprises a piston head (301), a magnetorheological control coil (302), a heating coil box (303) and a temperature sensor (304); the magnetorheological control coil (302) is arranged inside the piston head (301), and the heating coil box (303) is arranged at the bottom of the piston head (301); and the temperature sensor (304) is arranged at the bottom of the heating coil box (303).

2. A temperature-maintaining magnetorheological shock absorber according to claim 1, characterized in that: A magnetorheological control wire (4) is inserted into the interior of the piston rod (2), and the bottom of the magnetorheological control wire (4) is connected to the magnetorheological control coil (302).

3. A temperature-maintaining magnetorheological shock absorber according to claim 1, characterized in that: A coil conductor (5) is also passed through the interior of the piston rod (2), and the bottom of the coil conductor (5) is connected to the heating coil box (303).

4. A temperature-maintaining magnetorheological shock absorber according to claim 1, characterized in that: A sensor wire (6) is also passed through the interior of the piston rod (2), and the sensor wire (6) is connected to the temperature sensor (304).

Images