Compact vibration feedback device

Abstract

The utility model relates to the technical field of intelligent wearable equipment, and discloses a compact vibration feedback device which comprises a flexible base frame, insulation cloth is fixed to the inner bottom wall of the flexible base frame, an electromagnetic coil is fixed to the insulation cloth, the top of the flexible base frame is covered with an elastic piece in a sealed mode, and flexible magnetic cloth is arranged on the inner bottom wall of the elastic piece and corresponds to the electromagnetic coil. The flexible base frame is further internally provided with a sensor connected with wire ends at the two ends of the electromagnetic coil and a storage battery supplying power to the sensor. The application has the effect of improving the applicability of the vibration feedback device.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent wearable devices, and in particular to a compact vibration feedback device. Background Art

[0002] Smart wearable devices are becoming more and more diverse, and are gradually developing in the direction of miniaturization or even invisibility. These smart wearable devices look no different from ordinary accessories, such as rings, finger sleeves, gloves, wristbands, etc. Smart devices have been added to these wearable accessories to meet the diverse needs of users.

[0003] With the popularity of smart wearable devices, vibration feedback is widely used as an important interaction method. However, the existing vibration feedback devices on smart wearable devices often have defects such as large size and high energy consumption.

[0004] In the process of installing the vibration feedback device on the smart wearable device, the various components that make up the vibration feedback device need to be assembled separately into the corresponding smart wearable device, which not only increases the complexity of assembly, but also makes it impossible for the vibration feedback device to be mass-produced as a separate module, and is difficult to apply to different types of smart wearable devices. Utility Model Content

[0005] In order to improve the applicability of the vibration feedback device, the present application provides a compact vibration feedback device.

[0006] The present application provides a compact vibration feedback device adopting the following technical solution:

[0007] A compact vibration feedback device comprises a flexible base frame, an inner bottom wall of the flexible base frame is fixed with an insulating cloth, an electromagnetic coil is fixed on the insulating cloth, the top of the flexible base frame is covered with a spring sheet, and a flexible magnetic cloth is arranged on the inner bottom wall of the spring sheet corresponding to the electromagnetic coil, and a sensor connected to the wire ends of the electromagnetic coil and a battery for supplying power to the sensor are also arranged in the flexible base frame.

[0008] By adopting the above technical solution, the vibration feedback device is powered by a battery when working, and the sensor causes the connected electromagnetic coil to pass high-frequency alternating current, so that the electromagnetic coil generates a changing magnetic field and acts on the flexible magnetic cloth. The movement of the flexible magnetic cloth drives the spring to vibrate up and down, thereby transmitting the vibration to the user and achieving the effect of feedback. This vibration feedback device combines the electromagnetic coil with the flexible magnetic cloth and spring to achieve the miniaturization and low power consumption of the vibration feedback device, and the micro vibration feedback device is made entirely of flexible materials and can be adapted to wearable devices of different shapes and curvatures.

[0009] Optionally, a flexible adhesive layer is provided on the bottom wall of the flexible base frame away from the elastic sheet.

[0010] By adopting the above technical solution, the adhesive layer enables the micro vibration feedback device to be better attached to the surface of the smart wearable device. The flexible setting of the adhesive layer can ensure that the micro vibration feedback device fits tightly to the surface of the device, while providing sufficient flexibility to adapt to wearable devices of different shapes and curvatures, thereby improving the applicability of the vibration feedback device.

[0011] Optionally, a plurality of rubber particles are arranged on the surface of the spring sheet away from the flexible base frame.

[0012] By adopting the above technical solution, a number of rubber particles arranged on the side wall of the shrapnel away from the flexible base frame increase the vibration points for transmitting vibration between the micro vibration feedback device and the user's skin, and the flexible material of the rubber particles provides the user with a more comfortable and natural vibration feedback experience.

[0013] Optionally, the flexible base frame and the flexible adhesive layer are both made of heat-conducting materials.

[0014] The adoption of the above technical solution is beneficial for dissipating heat for the electromagnetic coil and reducing the possibility of damage to the feedback device due to excessive working heat.

[0015] Optionally, a power supply box for supplying power to the battery is provided in the flexible base frame, a conductive sheet is provided in the power supply box, the conductive sheet is connected to the battery via a wire, and a piezoelectric component for supplying power using kinetic energy is provided in the power supply box.

[0016] By adopting the above technical solution, in order to make the micro-vibration device on the smart wearable device more independent and sustainable, considering the integrated energy harvesting function, a power supply box is set up using motion energy, which can extend the service life of the micro-vibration feedback device and reduce the micro-vibration feedback device's dependence on an external power supply.

[0017] Optionally, a fixed block is provided in the middle of the power supply box along the length direction, and the fixed block divides the interior of the power supply box into two chambers. A group of piezoelectric components is provided in each chamber. The conductive sheet connects the two chambers, and both ends of the conductive sheet are fitted on the inner side walls at both ends of the power supply box along the length direction.

[0018] By adopting the above technical solution and arranging two groups of piezoelectric components in the power supply box, the power generation efficiency of the device can be improved.

[0019] Optionally, the piezoelectric component includes a first piezoelectric ceramic sheet located in the power supply box and fixed on the side of the conductive sheet away from the inner wall of the power supply box, a second piezoelectric ceramic sheet slidingly arranged in the power supply box along the length direction of the power supply box, and an elastic member driving the second piezoelectric ceramic sheet to slide, wherein the second piezoelectric ceramic sheet is made of a composite piezoelectric ceramic material with sufficient mass, the second piezoelectric ceramic sheet contacts the first piezoelectric ceramic sheet during the sliding process, and the elastic member contacts between the second piezoelectric ceramic sheet and the inner wall of the power supply box.

[0020] By adopting the above technical solution, since a voltage will appear between the two end surfaces of the pressure material when it is subjected to pressure, this characteristic of the piezoelectric material can be used to convert mechanical vibration into alternating current and store it in the battery. Since piezoelectric ceramics have the advantages of strong piezoelectricity, high dielectric constant, and can be processed into any shape, when the user wears the wearable device, since the second piezoelectric ceramic sheet is made of a composite piezoelectric ceramic material with sufficient mass, the second piezoelectric ceramic sheet can generate sufficient impact force through inertia, and through the push of the elastic member, the first piezoelectric ceramic sheet and the second piezoelectric ceramic sheet are constantly collided, thereby storing energy for the battery and improving the service life of the micro vibration feedback device.

[0021] Optionally, a lap groove is provided on the side wall of the inner top of the flexible base frame corresponding to the elastic sheet, and the peripheral bottom of the elastic sheet abuts against the bottom wall of the lap groove.

[0022] By adopting the above technical solution, the edge of the spring sheet is abutted against the overlap groove and then sealed with glue, which can increase the bonding area between the spring sheet and the flexible base frame and provide stability and convenience for the installation of the micro vibration feedback device.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the vibration feedback device is working, it is powered by a battery. The sensor passes a high-frequency alternating current through the connected electromagnetic coil. The electromagnetic coil generates a changing magnetic field and acts on the flexible magnetic cloth. The movement of the flexible magnetic cloth drives the spring to vibrate up and down, thereby transmitting the vibration to the user and achieving a feedback effect. This vibration feedback device combines an electromagnetic coil with a flexible magnetic cloth and spring to achieve miniaturization and low power consumption of the vibration feedback device. The micro vibration feedback device is made entirely of flexible materials and can be adapted to wearable devices of different shapes and curvatures.

[0025] 2. The adhesive layer enables the micro vibration feedback device to be well attached to the surface of the smart wearable device. The flexible setting of the adhesive layer can ensure that the micro vibration feedback device fits tightly to the surface of the device, while providing sufficient flexibility to adapt to wearable devices of different shapes and curvatures, thereby improving the applicability of the vibration feedback device;

[0026] 3. The several rubber particles arranged on the side wall of the shrapnel away from the flexible base frame increase the vibration points for transmitting vibration between the micro vibration feedback device and the user's skin, and the flexible material of the rubber particles provides the user with a more comfortable and natural vibration feedback experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the internal structure of the flexible base frame in the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram showing the positional relationship among the electromagnetic coil, sensor, battery and power supply box in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the internal structure of the power supply box in the embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1. Flexible base frame; 11. Overlap groove; 2. Flexible adhesive layer; 3. Shrapnel; 4. Colloid; 5. Vibration component; 51. Electromagnetic coil; 52. Flexible magnetic cloth; 6. Sensor; 7. Power supply mechanism; 71. Battery; 72. Power supply box; 721. Conductive sheet; 722. Fixed block; 8. Insulating cloth; 9. Piezoelectric component; 91. First piezoelectric ceramic sheet; 92. Second piezoelectric ceramic sheet; 93. Elastic member. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The embodiment of the present application discloses a compact vibration feedback device.

[0035] The directions such as up, down, top, and bottom in the present application are all described with reference to the vibration area facing upward.

[0036] Reference Figures 1 to 4 A compact vibration feedback device includes a flexible base frame 1, a flexible adhesive layer 2 is fixedly arranged on the bottom wall of the flexible base frame 1, a lap groove 11 is opened on the side wall around the top of the flexible base frame 1, a spring 3 is inserted and matched in the lap groove 11, the four edges of the spring 3 are sealed with the flexible base frame 1 by gluing, and a plurality of glue particles 4 are fixedly arranged on the side wall of the spring 3 away from the flexible base frame 1, and a vibration component 5 is sealedly installed inside the flexible base frame 1, and a sensor 6 for electrically connecting the vibration component 5 with an external notification signal and a power supply mechanism 7 for supplying power to the sensor 6 are also arranged inside the flexible base frame 1.

[0037] Reference Figures 1 to 4 When the vibration feedback device is working, it is powered by the power supply mechanism 7. The sensor 6 receives the external notification signal, causes the vibration component 5 to move, and transmits the vibration to the spring 3. Since the user puts one side of the spring 3 with a plurality of rubber particles 4 against the skin, the vibration of the spring 3 transmits the vibration feeling from the plurality of rubber particles 4 to the user, which has a good feedback effect. When the vibration feedback device is in standby mode, the power supply mechanism 7 stores energy as the user moves.

[0038] Reference Figure 2 In this embodiment, PVC material is used to make the flexible base frame 1, and an insulating cloth 8 is fixedly set on the inner bottom wall of the flexible base frame 1. The vibration component 5 includes an electromagnetic coil 51 and a flexible magnetic cloth 52. The electromagnetic coil 51 is fixedly set on the insulating cloth 8, and the flexible magnetic cloth 52 is located directly above the electromagnetic coil 51 and fixedly set on the bottom wall of the spring 3.

[0039] Reference Figure 3 The sensor 6 is located on one side of the insulating cloth 8 and is fixedly arranged on the inner bottom wall of the flexible base frame 1 , and the ends of both ends of the electromagnetic coil 51 are connected to the sensor 6 .

[0040] Reference Figure 3 The power supply mechanism 7 includes a battery 71 and a power supply box 72. The battery 71 and the power supply box 72 are both fixedly arranged on the inner bottom wall of the flexible base frame 1, and the sensor 6 and the battery 71, and the battery 71 and the power supply box 72 are connected by wires.

[0041] Reference Figure 4 , wherein a fixed block 722 is fixedly arranged in the middle of the power supply box 72 along the length direction, and the fixed block 722 divides the inside of the power supply box 72 into two chambers, and a conductive sheet 721 is fixedly arranged on the inner side walls of the opposite ends of the power supply box 72, and the wire passes through the side wall of the power supply box 72 and is connected between the conductive sheet 721 and the battery 71, and the conductive sheet 721 connects the two chambers, and both ends of the conductive sheet 721 are fitted on the inner side walls at both ends of the power supply box 72 along the length direction. Piezoelectric components 9 are arranged in both chambers in the power supply box 72.

[0042] Reference Figure 4The piezoelectric assembly 9 includes a first piezoelectric ceramic sheet 91, a second piezoelectric ceramic sheet 92 and an elastic member 93. The first piezoelectric ceramic sheet 91 is located in the power supply box 72 and is fixedly arranged on the side wall of the conductive sheet 721 away from the inner wall of the power supply box 72. In this embodiment, the second piezoelectric ceramic sheet is made of a composite piezoelectric ceramic material with sufficient mass. The second piezoelectric ceramic sheet 92 is slidably arranged in the power supply box 72 along the length direction of the power supply box 72 and is slidably matched with the power supply box 72. The elastic member 93 in this embodiment is a spring, which abuts between the second piezoelectric ceramic sheet 92 and the fixed block 722, and drives the second piezoelectric ceramic sheet 92 to continuously abut against the first piezoelectric ceramic sheet 91 during the sliding process.

[0043] The implementation principle of a compact vibration feedback device in the embodiment of the present application is as follows: when the vibration feedback device is working, it is powered by a battery 71, and the sensor 6 receives an external notification signal. The sensor 6 causes the connected electromagnetic coil 51 to pass a high-frequency alternating current, and the electromagnetic coil 51 generates a changing magnetic field and acts on the flexible magnetic cloth 52. The movement of the flexible magnetic cloth 52 drives the spring 3 to vibrate up and down. Since the user puts one side of the spring 3 with a plurality of rubber particles 4 against the skin, the vibration of the spring 3 transmits the vibration to the user through the plurality of rubber particles 4, which has a good feedback effect. When the vibration feedback device is in the standby state, any movement generated by the user in the process of wearing the wearable device can be pushed by the spring to make the second piezoelectric ceramic sheet 92 continue to slide back and forth toward the first piezoelectric ceramic sheet 91, and continuously collide with the first piezoelectric ceramic sheet 91, thereby storing energy for the battery 71.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A compact vibration feedback device, characterized in that: The invention comprises a flexible base frame (1), an insulating cloth (8) is fixed to the inner bottom wall of the flexible base frame (1), an electromagnetic coil (51) is fixed to the insulating cloth (8), a spring sheet (3) is sealed on the top of the flexible base frame (1), a flexible magnetic cloth (52) is arranged on the inner bottom wall of the spring sheet (3) corresponding to the electromagnetic coil (51), and a sensor (6) connected to the ends of the electromagnetic coil (51) and a storage battery (71) for supplying power to the sensor (6) are also arranged in the flexible base frame (1).

2. A compact vibration feedback device according to claim 1, characterized in that: A flexible adhesive layer (2) is provided on the bottom wall of the flexible base frame (1) away from the elastic sheet (3).

3. A compact vibration feedback device according to claim 1, characterized in that: A plurality of rubber particles (4) are arranged on the surface of the spring sheet (3) away from the flexible base frame (1).

4. A compact vibration feedback device according to claim 2, characterized in that: The flexible base frame (1) and the flexible adhesive layer (2) are both made of heat-conducting materials.

5. A compact vibration feedback device according to claim 1, characterized in that: A power supply box (72) for supplying power to a storage battery (71) is arranged in the flexible base frame (1), a conductive sheet (721) is arranged in the power supply box (72), the conductive sheet (721) and the storage battery (71) are connected via a wire, and a piezoelectric component (9) for supplying power using kinetic energy is arranged in the power supply box (72).

6. A compact vibration feedback device according to claim 5, characterized in that: A fixed block (722) is arranged in the middle of the power supply box (72) along the length direction, and the fixed block (722) divides the inside of the power supply box (72) into two chambers, each of which is provided with a group of piezoelectric components (9). The conductive sheet (721) connects the two chambers, and both ends of the conductive sheet (721) are fitted on the inner side walls at both ends of the power supply box (72) along the length direction.

7. A compact vibration feedback device according to claim 6, characterized in that: The piezoelectric component (9) comprises a first piezoelectric ceramic sheet (91) located in the power supply box (72) and fixed on a conductive sheet (721) away from the inner wall of the power supply box (72), a second piezoelectric ceramic sheet (92) slidably arranged in the power supply box (72) along the length direction of the power supply box (72), and an elastic member (93) for driving the second piezoelectric ceramic sheet (92) to slide, wherein the second piezoelectric ceramic sheet (92) is made of a composite piezoelectric ceramic material with sufficient mass, the second piezoelectric ceramic sheet (92) abuts against the first piezoelectric ceramic sheet (91) during the sliding process, and the elastic member (93) abuts between the second piezoelectric ceramic sheet (92) and the inner wall of the power supply box (72).

8. A compact vibration feedback device according to claim 1, characterized in that: A lap groove (11) is provided on the side wall at the top of the flexible base frame (1) corresponding to the spring sheet (3), and the peripheral bottom of the spring sheet (3) abuts against the bottom wall of the lap groove (11).

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