Magnetic fluid form control device and intelligent terminal protective shell

Abstract

The application belongs to the technical field of magnetic fluid devices, and particularly relates to a magnetic fluid form control device and an intelligent terminal protective shell comprising the device. The magnetic fluid form control device comprises a magnetic fluid layer, a shape limiting layer and a magnetic layer, wherein the shape limiting layer is used for limiting the magnetic field of the magnetic layer and opening all or part of the magnetic field, and the magnetic fluid layer can form a magnetic fluid pattern according to the magnetic field opened by the shape limiting layer. The application has simple structure, and the magnetic fluid form control mode of traditional electromagnetic array is changed to a mechanical structure mode, so that the cost of magnetic fluid form control is greatly reduced, the magnetic fluid is first widely applied to existing products with high frequency, the interest of existing products is improved, and very good decompression effect is brought.

Description

Technical Field

[0001] This invention belongs to the field of magnetohydrodynamic equipment technology, and particularly relates to a magnetohydrodynamic morphology control device and a smart terminal protective case including the device. Background Technology

[0002] Magnetofluid, also known as magnetic liquid, is a novel functional material that combines the fluidity of a liquid with the magnetic properties of a solid magnetic material. It is a stable colloidal liquid composed of magnetic solid particles with a diameter of less than 10 nanometers, a carrier liquid, and a surfactant. Magnetic fluids exhibit no magnetic attraction when static, but become magnetic when an external magnetic field is applied. Therefore, it has wide applications in practice and high theoretical research value. Currently, the morphology control of finished magnetofluid products generally relies on electromagnetic arrays, which are very costly. While the fluidity of magnetofluids is aesthetically pleasing, the high cost of electromagnetic array control makes it difficult for related products to be universally applicable; this problem urgently needs to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide a magnetohydrodynamic (MHD) morphology control device and a smart terminal protective case including the device, aiming to solve the problem of high cost of existing MHD morphology control and to widely apply MHD to existing products, thereby increasing the appeal of existing products.

[0004] The present invention is implemented as follows: a magnetofluid morphology control device includes: a magnetofluid layer, a shape-limiting layer and a magnetic layer, wherein the shape-limiting layer is used to limit the magnetic field of the magnetic layer and open all or part of the magnetic field, and the magnetofluid layer can form a magnetofluid pattern according to the magnetic field opened by the shape-limiting layer.

[0005] Furthermore, the shape-limiting layer is at least partially located between the magnetofluid layer and the magnetic layer.

[0006] Furthermore, the magnetic layer is provided with a magnetic pattern.

[0007] Furthermore, the limiting layer is provided with a first pattern for opening the magnetic field.

[0008] Furthermore, the limiting layer is a single-layer or multi-layer structure. When the limiting layer is a multi-layer structure, it also includes a second pattern that can open the magnetic field. The first pattern and the second pattern are respectively set on different horizontal planes to jointly limit the magnetic field of the magnetic layer and open all or part of the magnetic field.

[0009] Furthermore, when the limiting layer is a single-layer structure, the limiting layer and the magnetic layer can move relative to each other; when the limiting layer is a multi-layer structure, the first pattern and the second pattern can move relative to each other.

[0010] Furthermore, the magnetic layer may be partially or entirely made of permanent magnets.

[0011] Furthermore, a magnetohydrodynamic shape control device includes a magnetohydrodynamic layer and a magnetic layer, wherein a shape-limiting layer is disposed between the magnetohydrodynamic layer and the magnetic layer, and the shape-limiting layer is provided with a first pattern that can open all or part of the magnetic field.

[0012] Furthermore, the limiting layer is a single-layer or multi-layer structure. When the limiting layer is a multi-layer structure, it also includes a second pattern that can open the magnetic field. The first pattern and the second pattern are respectively set on different horizontal planes to jointly limit the magnetic field of the magnetic layer and open all or part of the magnetic field.

[0013] Furthermore, the magnetic layer is provided with a magnetic pattern.

[0014] Furthermore, when the limiting layer is a single-layer structure, the limiting layer and the magnet layer can move relative to each other; when the limiting layer is a multi-layer structure, the first pattern and the second pattern can move relative to each other.

[0015] Furthermore, the magnetic layer may be partially or entirely made of permanent magnets.

[0016] This invention also provides a smart terminal protective case, including the magnetohydrodynamic morphology control device described in any of the above claims, and a control component operably connected to the magnetohydrodynamic morphology control device.

[0017] Furthermore, when the limiting layer is a single-layer structure, the control element is operably connected to the magnetic layer or the limiting layer to control the relative movement between the magnetic layer and the limiting layer; when the limiting layer is a multi-layer structure, the control element is operably connected to the limiting layer to control the limiting layer to open all or part of the magnetic field.

[0018] Compared with the prior art, the advantages of this invention are as follows: the invention has a simple structure, and by changing the traditional electromagnetic array magnetohydrodynamic morphology control method to a mechanical structure, the cost of magnetohydrodynamic morphology control is greatly reduced. It can also be used for the first time in existing high-frequency products, improving the interest of existing products and bringing very good decompression effect. Attached Figure Description

[0019] Figure 1 This is an exploded schematic diagram of the magnetohydrodynamic morphology control device provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the magnetohydrodynamic morphology control device provided in an embodiment of the present invention;

[0021] Figure 3This is a side view of the magnetohydrodynamic morphology control device provided in an embodiment of the present invention;

[0022] Figure 4 This is an exploded schematic diagram of a magnetohydrodynamic morphology control device provided in another embodiment of the present invention;

[0023] Figure 5 This is an exploded schematic diagram of the casing provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the housing provided in an embodiment of the present invention;

[0025] Figure 7 This is an exploded view of the smart terminal protective case provided in an embodiment of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] Magnetofluids, also known as magnetic liquids, ferrofluids, or magnetic fluids, are a novel type of functional material that possesses both the fluidity of liquids and the magnetic properties of solid magnetic materials. This fluid exhibits no magnetic attraction when static, but displays magnetism when an external magnetic field is applied. This invention provides a magnetofluid morphology control device to achieve mechanical control of the magnetofluid's morphology. Figure 1-3 As shown, the magnetofluid morphology control device includes a magnetofluid layer 3, a shaping layer 1, and a magnetic layer 2. The shaping layer 1 is used to restrict the magnetic field of the magnetic layer 2 and open all or part of the magnetic field. The magnetofluid layer 3 can form a magnetofluid pattern according to the magnetic field opened by the shaping layer.

[0028] Furthermore, the confinement layer 1 is at least partially located between the magnetofluid layer 3 and the magnetic layer 2. It is understood that the function of the confinement layer 1 is to confine the magnetic field of the magnetic layer 2 and open all or part of the magnetic field; its specific shape can be to completely or partially enclose the magnetic layer 2 or the magnetofluid layer 3, or it can be as follows: Figure 1 The image shown is located entirely between the magnetofluid layer 3 and the magnetic layer 2.

[0029] Furthermore, such as Figure 4 As shown, a magnetic pattern 21 is provided in the magnetic layer 2, and the limiting layer 1 can open part of the magnetic pattern 21 so that the magnetic fluid layer 3 corresponds to the magnetic field with the magnetic pattern 21. Under the attraction of the magnetic field, the magnetic fluid forms a magnetic fluid pattern 31 corresponding to the magnetic pattern 21.

[0030] Furthermore, the limiting layer 1 is provided with a first pattern 111 for opening the magnetic field. The magnetic field emitted by the magnetic layer 2 passes through the first pattern 111, causing the magnetofluid layer 3 to correspond to the magnetic field with the first pattern 111. Under the attraction of this magnetic field, the magnetofluid forms a magnetofluid pattern 31 corresponding to the first pattern 111. Generally, the limiting layer 1 can be made of magnetic materials (materials that can respond to a magnetic field in a certain way are called magnetic materials), such as iron, copper, etc., which can absorb and weaken the magnetic field. It can also be made of non-magnetic materials, such as plastics. The limiting layer 1 does not completely block the magnetic field; its function may only be to reduce the magnetic field strength, so that the magnetic field strength in the area where it blocks the magnetic field is insufficient to make the magnetofluid visible.

[0031] Furthermore, the shaping layer 1 can be a single-layer or multi-layer structure. In one embodiment, such as... Figure 1 As shown, the limiting layer 11 has a multi-layer structure, including a first limiting layer 11 and a second limiting layer 12. A first pattern 111 is provided on the first limiting layer 11, and a second pattern 121 is provided on the second limiting layer 12. The first limiting layer 11 and the second limiting layer 12 are located on different planes. The first limiting layer 11 and the second limiting layer 12 together restrict the magnetic field of the magnetic layer 2 and open part or all of the magnetic field. The limiting layer 11 may also include a third limiting layer and other limiting layers. The second pattern mentioned above does not refer to a single second pattern, but rather a collection of multiple patterns provided in the multiple limiting layers. This allows the present application to form different patterns through two or more limiting layers, thereby restricting the magnetic field of the magnetic layer 2 into magnetic fields of different shapes, thus enabling the magnetic fluid to display various different forms, achieving multiple changes in the magnetic fluid's morphology, and enhancing the product's appeal. Furthermore, the first pattern 111 or the second pattern 121 on the limiting layer 1 can be a basic pattern of a certain shape, such as dots or lines. The first pattern 111 or the second pattern 121 can move relative to each other to arbitrarily combine into more complex patterns or shapes, such as an analog clock, which uses three layers of hands (hour, minute, and second) to indicate time. Furthermore, the first pattern 111 of the limiting layer 1 can also be a set of continuous patterns. When the limiting layer 1 moves, the magnetic field opened by this continuous pattern can be a series of continuous animations, with the magnetofluid morphology changing accordingly to form the animation, providing consumers with a superior visual experience.

[0032] Furthermore, in another embodiment, when the limiting layer 1 is a single-layer structure, the limiting layer 1 and the magnetic layer 2 can move relative to each other. This relative movement can include translation, rotation, or moving closer or further apart, etc. Specifically, the limiting layer 1 can be provided with a first pattern for opening the magnetic field. This pattern can be a single pattern, a continuous pattern, or multiple sets of patterns. For example, the limiting layer 1 can translate relative to the magnetic layer 2. The pattern of the limiting layer 1 is a set of continuous patterns. When the limiting layer 1 moves, the magnetic field opened by this continuous pattern can be a series of continuous animations. The magnetohydrodynamic shape changes accordingly to form an animation, providing consumers with a superior visual experience.

[0033] Generally, the magnetic layer 2 can be partially or entirely made of permanent magnets. The magnetic layer can be a combination of multiple permanent magnets or a single permanent magnet. The number or shape of the permanent magnets can be set according to actual needs.

[0034] In one embodiment, the first limiting layer 11 and the second limiting layer 12 can move relative to each other. This relative movement can be achieved by setting a control element 4 to control the relative rotation of the first limiting layer 11 or the second limiting layer 12. In this embodiment, the control element 4 is an external gear, and the edge of the first limiting layer 11 is set as gear teeth, so that the user can control the rotation of the first limiting layer 11 through the control element 4 to achieve the relative movement of the first limiting layer 11 and the second limiting layer 12, thereby achieving the relative movement of the first pattern 111 and the second pattern 121.

[0035] In one embodiment, when the limiting layer 1 is a single-layer structure, the magnetic layer 2 is provided with a magnetic pattern, and the limiting layer 1 is provided with a first pattern corresponding to the magnetic pattern. In this case, the limiting layer 1 and the magnetic layer 2 can move relative to each other. For example, by stacking the limiting layer 1 and the magnetic layer 2 on the same central axis, the limiting layer 1 can be rotated. Alternatively, the edge of the limiting layer 1 can be gear-shaped, and the movement of the limiting layer 1 relative to the magnetic layer 2 can be controlled by an external control element 3. When the first pattern on the limiting layer 1 corresponds to the magnetic pattern on the magnetic layer 2, the magnetic field emitted by the magnetic pattern passes through the limiting layer 1 and reaches the magnetofluid layer.

[0036] In one embodiment, when the shaping layer 1 is a single-layer structure, a continuous pattern is provided in the shaping layer 1. The shaping layer 1 can be flexible, for example, the shaping layer is made of rubber magnets, which can move continuously like a film reel.

[0037] Furthermore, such as Figure 5 and Figure 6As shown, the limiting layer 1 and the magnetic layer 2 are disposed inside the shell, which is the magnetofluid layer 3. Inside the shell, there are connecting posts 32 and limiting posts 33 for connecting with the limiting layer 1. The connecting posts 32 are disposed on the limiting posts 33. When the limiting layer 1 is a multi-layer structure, the second limiting layer 12 is provided with corresponding limiting holes, such as square holes, and the first limiting layer 11 is only provided with connecting holes. In this way, the control component can drive the first limiting layer 11 to rotate around the connecting post 32, while the second limiting layer 12 does not rotate.

[0038] Furthermore, the side of the housing is provided with a side hole 34 for exposing the control element 4, so that the user can control the movement of the limiting layer 1 through the control element 4.

[0039] Furthermore, the control component 4 is a gear, which meshes with the gear in the limiting layer 1.

[0040] Furthermore, the cross-sections of the shaping layer 1 and the magnetic layer 2 are circular.

[0041] Furthermore, such as Figure 7 As shown, the present invention also provides a smart terminal protective case, which includes the aforementioned magnetohydrodynamic (MHD) shape control device. The user can control the relative movement of the limiting layer 1 and the magnetic layer 2 within the MHD shape control device via the control component 4. Generally, the MHD shape control device serves as the housing of the protective case, located on the back of the smart terminal. The user can access the MHD shape control device by flipping the smart terminal. The control component 3 is generally disposed on the side wall of the protective case, and the control component 4 is an external gear. The user can rotate the gear to control the relative movement of the limiting layer 1 and the magnetic layer 2.

[0042] Current phone holders are usually magnetic, requiring users to attach a magnetic material (such as sheet metal) to the back of their phone or smart terminal case before it can be attached to the phone holder. In this application, due to the presence of the magnetic layer 2, the smart terminal case has a certain magnetism when the open part of the limiting layer is magnetic. Using a smart terminal case including the magnetohydrodynamic shape control device provided in this application can eliminate the need to attach a magnetic material and allow direct use of the phone holder.

[0043] This invention has a simple structure, and by changing the magnetohydrodynamic shape control method of the electromagnetic array to a mechanical structure, the cost of magnetohydrodynamic shape control is greatly reduced. It can also be used for the first time in existing high-frequency products, improving the fun of existing products and bringing very good decompression effect.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetohydrodynamic morphology control device, characterized in that, include: Magnetofluid layer, confinement layer, and magnetic layer The limiting layer is used to restrict the magnetic field of the magnetic layer and open all or part of the magnetic field. The magnetofluid layer can form a magnetofluid pattern according to the magnetic field opened by the limiting layer. The limiting layer includes at least a first limiting layer and a second limiting layer. The first limiting layer is provided with a first pattern for opening the magnetic field, and the second limiting layer is provided with a second pattern for opening the magnetic field. The first pattern and the second pattern are respectively provided on different horizontal planes to jointly restrict the magnetic field of the magnetic layer and open all or part of the magnetic field. The first pattern and the second pattern can move relative to each other, and the magnetofluid layer can form the magnetofluid pattern according to the magnetic field opened after the relative movement of the first pattern and the second pattern.

2. The magnetohydrodynamic morphology control device as described in claim 1, characterized in that, The shape-limiting layer is located at least partially between the magnetofluid layer and the magnetic layer.

3. The magnetohydrodynamic morphology control device as described in claim 1, characterized in that, The magnetic layer contains a magnetic pattern.

4. The magnetohydrodynamic morphology control device as described in claim 1, characterized in that, The magnetic layer is partially or entirely made of permanent magnets.

5. A magnetohydrodynamic morphology control device, characterized in that, The system includes a magnetofluid layer and a magnetic layer, wherein a limiting layer is disposed between the magnetofluid layer and the magnetic layer. The limiting layer includes at least a first limiting layer and a second limiting layer. The first limiting layer is provided with a first pattern for opening a magnetic field, and the second limiting layer is provided with a second pattern for opening a magnetic field. The first pattern and the second pattern are respectively disposed on different horizontal planes to jointly limit the magnetic field of the magnetic layer and open all or part of the magnetic field. The first pattern and the second pattern can move relative to each other, and the magnetofluid layer can form the magnetofluid pattern according to the magnetic field opened after the relative movement of the first pattern and the second pattern.

6. The magnetohydrodynamic morphology control device as described in claim 5, characterized in that, The magnetic layer contains a magnetic pattern.

7. The magnetohydrodynamic morphology control device as described in any one of claims 5-6, characterized in that, The magnetic layer is partially or entirely made of permanent magnets.

8. A protective case for a smart terminal, characterized in that, It includes a magnetohydrodynamic morphology control device as described in any one of claims 1-4 or as described in any one of claims 5-7, and a control element operably connected to the magnetohydrodynamic morphology control device.

9. The smart terminal protective case as described in claim 8, characterized in that, The control element is operably connected to the limiting layer to control the limiting layer to open all or part of the magnetic field.

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