Impact protection assembly based on magnetic fluid

Abstract

The utility model provides an impact protection assembly based on magnetic fluid, and belongs to the technical field of magnetic fluid. Comprising a housing which is provided with a sensor; the four first cavities are arranged in the shell; the magnetofluid assembly is arranged in the first cavity; the second cavity is arranged in the shell, and the inner ring of the first cavity concentrically wraps the second cavity; and the electromagnetic coil is arranged in the second cavity. Through the arrangement of the buffer ring cushion cover, preliminary buffer protection can be provided for the connector, the force of impact directly transmitted to a connecting part is reduced, and then through the mutual matching of the first elastic strip, the second elastic strip and the connecting strip, a structure with elastic buffer capacity is formed in the connecting ring block; the elastic strips can absorb impact force through deformation of the elastic strips, stress borne by connecting parts is reduced, and therefore the possibility that the connecting parts are loosened or broken is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic fluids, in particular to an impact protection component based on magnetic fluids. Background Art

[0002] As a new type of functional material, ferrofluid possesses unique magnetic response properties. Under the influence of a magnetic field, its physical properties, such as viscosity and fluidity, can change, effectively absorbing and dissipating impact energy. This makes it suitable for a variety of applications, including electronic equipment, precision instruments, and industrial machinery. Magnetic fluids are typically manipulated through permanent magnets or electromagnetic coils, primarily to alter their viscosity and fluidity.

[0003] At present, during use, the existing impact protection component controls the magnetic fluid through an electromagnetic coil. When the electromagnetic coil needs to continuously or frequently adjust the magnetic field strength and direction to cope with impacts of different intensities and directions, a stable power supply is required, which requires the electromagnetic coil to be connected to an external power supply. However, when subjected to impact, the connection is very likely to loosen or even break, which will seriously affect the precise control of the electromagnetic coil current, thereby reducing the performance and reliability of the impact protection component. Therefore, the present application provides an impact protection component based on magnetic fluid to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an impact protection component based on magnetic fluid to solve the problem that the connection between the electromagnetic coil and the outside may become loose or even broken when the existing impact protection component is subjected to impact during use.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A magnetic fluid-based impact protection assembly comprises: a housing, on which a sensor is provided; four first cavities disposed within the housing; a magnetic fluid assembly disposed within the first cavities; a second cavity disposed within the housing, wherein the inner ring of the first cavity concentrically surrounds the second cavity; an electromagnetic coil disposed within the second cavity; a connecting ring block disposed on the housing; a connector disposed on the connecting ring block, wherein one end of the connector extends through the housing and is connected to the electromagnetic coil; and a buffer ring washer sleeved on the connector and located within the connecting ring block.

[0007] The buffer assembly is arranged in the connecting ring block and on the buffer ring pad.

[0008] The buffer assembly includes: a plurality of first elastic strips arranged on the inner wall of the connecting ring block; and a plurality of second elastic strips arranged on the buffer ring pad.

[0009] It also includes: a connecting strip, which is arranged between the first elastic strip and the second elastic strip.

[0010] The first elastic strips and the second elastic strips are arranged alternately.

[0011] The method further includes: the gaps between two adjacent first elastic strips are the same, and the gaps between two adjacent second elastic strips are the same.

[0012] The four first cavities are connected through a plurality of through holes.

[0013] The magnetic fluid as a whole includes a plurality of permanent magnets, wherein two adjacent permanent magnets are respectively an N-pole permanent magnet and an S-pole permanent magnet.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] In the above scheme, by setting up a buffer ring gasket, preliminary buffering protection can be provided for the connecting head, reducing the force of the impact directly transmitted to the connecting part, and then through the cooperation of the first elastic strip, the second elastic strip and the connecting strip, a structure with elastic buffering capacity is formed in the connecting ring block. The elastic strip can absorb the impact force through its own deformation, reduce the stress on the connecting part, and thus reduce the possibility of loosening or breaking the connection.

[0016] By placing N-pole and S-pole permanent magnets in the chamber to form an alternating magnetic field distribution, the magnetic fluid can exhibit different viscosity changes in different areas, thereby enhancing the protection against different types of impact. At the same time, the magnetic fluid can flow between different chambers, enhancing the absorption and dispersion of impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a magnetic fluid-based impact protection component.

[0018] Figure 2 Schematic diagram of the first cavity structure.

[0019] Figure 3 This is the left side diagram of the through-hole structure.

[0020] Figure 4 Schematic diagram of the buffer component structure.

[0021] [Reference Signs]

[0022] 1. Outer shell; 2. Connecting ring block; 3. First cavity; 4. Magnetic fluid assembly; 5. Second cavity; 6. Electromagnetic coil; 7. Through hole; 8. Connector; 9. Buffer ring pad; 10. Buffer assembly; 101. First elastic strip; 102. Connecting strip; 103. Second elastic strip.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0024] The following describes in detail a magnetic fluid-based impact protection assembly provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0025] like Figure 1 - Figure 4 As shown, an embodiment of the present invention provides an impact protection component based on magnetic fluid, including: a shell 1, on which a sensor is provided; four first cavities 3, arranged in the shell 1; a magnetic fluid body 4, arranged in the first cavity 3; a second cavity 5, arranged in the shell 1, and the inner circle of the first cavity 3 concentrically wraps the second cavity 5; an electromagnetic coil 6, arranged in the second cavity 5; a connecting ring block 2, arranged on the shell 1; a connecting head 8, arranged on the connecting ring block 2, one end of the connecting head 8 passes through the shell 1 and is connected to the electromagnetic coil 6; a buffer ring pad 9, which is sleeved on the connecting head 8 and is located in the connecting ring block 2.

[0026] By setting up sensors (not shown in the figure), impact or vibration signals in the external environment can be monitored in real time. Sensors can be set at different positions of the shell 1 to detect impacts from different directions, thereby providing all-round monitoring capabilities. After the sensor detects the impact signal, the current in the electromagnetic coil 6 is quickly adjusted to change the magnetic field strength, adjust the viscosity of the magnetic fluid, and form an effective buffer layer; by setting up the shell 1, the shell 1 uses a metal shielding material and is covered with an electromagnetic shielding coating, which can effectively reduce the interference of external electromagnetic signals.

[0027] Buffer assembly 10 is disposed within connecting ring block 2 and on buffer pad 9. Buffer pad 9 can be made of rubber, which exhibits excellent elasticity and flexibility. It maintains elasticity within a wide deformation range and can withstand repeated compression and extension. When connector 8 is impacted, the rubber buffer pad 9 elastically deforms, converting the impact force into stored elastic potential energy. After the impact, this elastic potential energy is released, returning buffer pad 9 to its original shape. This elastic deformation effectively absorbs and cushions instantaneous impact forces, reducing rigid collisions between connector 8 and housing 1. Alternatively, foam can be used, which is lightweight, soft, and elastic. When impacted, the internal pore structure compresses, expelling air and absorbing the impact energy.

[0028] The buffer assembly 10 includes: a plurality of first elastic strips 101, which are arranged on the inner wall of the connecting ring block 2; and a plurality of second elastic strips 103, which are arranged on the buffer ring pad 9. The second elastic strips 103 absorb the impact force through their own elastic deformation when subjected to external impact. This impact force is then transferred to the first elastic strips 101 through the connecting strips 102, where it is absorbed and cushioned by the first elastic strips 101 through their own elastic deformation.

[0029] The device further comprises a connecting strip 102 disposed between the first elastic strip 101 and the second elastic strip 103. The connecting strip 102, in conjunction with the first elastic strip 101 and the second elastic strip 103, forms a complete buffer mechanism. When impacted, the connecting strip 102 transfers the impact of the second elastic strip 103 to the first elastic strip 101, distributing the impact force more evenly and preventing damage to any local elastic strip caused by excessive pressure.

[0030] The first elastic strips 101 and the second elastic strips 103 are arranged in an interlaced manner. The interlaced structure can distribute the impact force more evenly among the elastic strips, preventing excessive deformation of local elastic strips due to concentrated force. The first elastic strips 101 and the second elastic strips 103 can be designed to be curved. When subjected to an impact force, their deformation process is nonlinear. Compared with straight elastic strips, curved elastic strips can provide relatively small resistance in the initial deformation stage. As the deformation increases, the resistance gradually increases. This nonlinear characteristic enables the buffer assembly 10 to respond more sensitively to small impacts, while providing sufficient resistance to absorb and disperse energy during large impacts.

[0031] The gaps between two adjacent first elastic strips 101 are the same, and the gaps between two adjacent second elastic strips 103 are the same. The same gaps enable each elastic strip to withstand relatively balanced forces during the buffering process, thereby effectively preventing individual elastic strips from being damaged due to excessive forces.

[0032] The four first cavities 3 are connected by a plurality of through holes 7. By providing the through holes 7, when subjected to an external impact, the magnetic fluid flows rapidly between the first cavities 3 through the through holes 7 to achieve effective absorption and dispersion of the impact energy. For example, when subjected to an impact from one side, the magnetic fluid can quickly flow from the cavity subjected to a smaller impact to the cavity subjected to a larger impact through the through holes 7, thereby changing its own distribution state and better coping with the impact. The magnetic fluid can disperse the energy throughout the system. For example, when a local area is subjected to a larger impact, the magnetic fluid in that area transfers part of the energy to the magnetic fluid in other areas through the through holes 7, thus preventing the local magnetic fluid from reaching its performance limit due to excessive energy concentration.

[0033] The magnetic fluid assembly 4 includes several permanent magnets, with adjacent permanent magnets having an N-pole and an S-pole, respectively. By arranging the permanent magnets in a NSNS pattern, an alternating magnetic field distribution is formed, creating a relatively stable magnetic field environment within the four first cavities 3. The viscosity of the magnetic fluid varies in different regions with changes in magnetic field strength. The NSNS arrangement of the permanent magnets results in higher viscosity in certain areas of the magnetic fluid, thereby better absorbing impact energy.

[0034] The technical solution provided by the present invention is connected to an external power supply through a connector 8. When the impact protection component is in normal working condition, the external power supply supplies power to the electromagnetic coil 6, and the electromagnetic coil 6 generates a magnetic field; when the sensor detects an external impact, the current size and direction in the electromagnetic coil 6 are quickly adjusted, thereby changing the strength and direction of the magnetic field. Under the action of the magnetic field change, the magnetic particles in the magnetic fluid as a whole 4 are rearranged under the action of the magnetic field, and the viscosity of the magnetic fluid increases, forming a temporary buffer layer to absorb the impact energy. At the same time, the impact force is absorbed by the buffer ring pad 9, and the second elastic strip 103 is driven to deform, which is transmitted to the first elastic strip 101 through the connecting strip 102 to absorb and disperse the impact force.

[0035] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A magnetic fluid-based impact protection component, characterized in that: include: A housing (1), wherein a sensor is provided on the housing (1); Four first cavities (3) are arranged in the housing (1); A magnetic fluid assembly (4) is arranged in the first cavity (3); A second cavity (5) is arranged in the housing (1), and the inner circle of the first cavity (3) concentrically wraps the second cavity (5); An electromagnetic coil (6) is arranged in the second cavity (5); A connecting ring block (2) is arranged on the housing (1); A connector (8) is provided on the connecting ring block (2), one end of the connector (8) passes through the housing (1) and is connected to the electromagnetic coil (6); A buffer ring washer (9) is sleeved on the connector (8) and is located inside the connecting ring block (2); A buffer assembly (10) is arranged inside the connecting ring block (2) and on the buffer ring pad (9).

2. The magnetic fluid-based impact protection assembly according to claim 1, characterized in that The buffer assembly (10) comprises: A plurality of first elastic strips (101) are arranged on the inner wall of the connecting ring block (2); A plurality of second elastic strips (103) are arranged on the buffer ring pad (9).

3. The magnetic fluid-based impact protection assembly according to claim 2, characterized in that Also includes: The connecting strip (102) is arranged between the first elastic strip (101) and the second elastic strip (103).

4. The magnetic fluid-based impact protection assembly according to claim 2, characterized in that The first elastic strips (101) and the second elastic strips (103) are arranged in an alternating manner.

5. The magnetic fluid-based impact protection assembly according to claim 2, wherein: The gaps between two adjacent first elastic strips (101) are the same, and the gaps between two adjacent second elastic strips (103) are the same.

6. The magnetic fluid-based impact protection assembly of claim 1, wherein: The four first cavities (3) are connected via a plurality of through holes (7).

7. The magnetic fluid-based impact protection assembly of claim 1, wherein: The magnetic fluid as a whole (4) includes a plurality of permanent magnets, wherein two adjacent permanent magnets are respectively an N-pole permanent magnet and an S-pole permanent magnet.

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