Driving device
By using a separate excitation unit, stimulation unit, and conduction unit, and utilizing a fluid medium to conduct vibration energy, the problems of low density, insufficient frequency response, and excessive size of existing drive devices are solved, achieving high-density multidimensional tactile feedback and improving wearing comfort and feedback effect.
Patent Information
- Application Number
- CN202423153951.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing drive devices suffer from problems such as low density, insufficient frequency response, small amplitude, single-dimensionality, poor wearability and poor realism. Furthermore, the limited space for human wear and the excessively large size of tactile feedback elements affect performance.
It adopts a separate structure of excitation unit, stimulation unit and conduction unit, uses fluid medium to conduct vibration energy, and realizes tactile feedback through deformable material. The excitation chamber and stimulation chamber are small in volume and can be distributed in high density. Combined with the design of multiple power source components and conduction unit, it realizes multi-dimensional tactile feedback.
It achieves high density and small size of haptic feedback array, which can provide a rich and multi-dimensional haptic feedback experience in the limited space of the human body, improving wearing comfort and feedback effect.
Smart Images
Figure CN223582441U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to drive technology field especially, relate to a drive device and its purpose. BACKGROUND
[0002] Due to the needs of rehabilitation, human enhancement, virtual experience and the like, the development of human-machine integration technology is required, and new higher requirements are put forward for related drive devices, one of the main veins of the future development direction of the current drive device is a flexible driver integrating driving, tactile perception and tactile feedback.
[0003] With the increasing popularity of immersive virtual scenes, traditional audio-visual technology cannot meet the user's experience needs for multi-dimensional human-computer interaction on smart phones, game content and more smart hardware, and multi-dimensional human-computer interaction technology including tactile feedback is in urgent need of breakthrough. The next stage of development in the fields of medical rehabilitation, special education, aerospace and the like expects a substantial improvement in tactile feedback technology.
[0004] At present, tactile feedback generally has problems such as low density, insufficient frequency response, small amplitude, single dimension, poor wearable compatibility, and poor experience of real feeling, and it is urgent to propose or design new tactile feedback devices and methods to improve the above-mentioned drawbacks. Furthermore, for the tactile feedback device worn by the human body, due to the limited wearing space of the human body, and considering the problem that the volume of the tactile feedback element is too large and the available space is limited, the tactile feedback performance is affected. UTILITY MODEL CONTENT
[0005] The main purpose of the utility model is to provide a drive device which can realize tactile feedback control with small volume and less space limitation, and has a high-density feedback array.
[0006] To achieve the above-mentioned purpose, the utility model provides a drive device, comprising:
[0007] The excitation unit has an excitation chamber, and a power source assembly is arranged in the excitation chamber and filled with fluid medium;
[0008] The stimulation unit has a stimulation chamber, and the stimulation chamber is filled with fluid medium;
[0009] The conduction unit is connected between the excitation unit and the stimulation unit, and is used for transmitting the kinetic energy of the fluid medium in the excitation chamber to the fluid medium in the stimulation chamber.
[0010] Further, the stimulation unit is made of a deformable material.
[0011] Further, the conducting unit is a conduit with two ends respectively connected with the excitation chamber and the stimulation chamber, and the conduit is filled with a fluid medium, and / or the conducting unit is a thread capable of conducting kinetic energy of the fluid medium.
[0012] Further, a pressure sensor is arranged on the conduit.
[0013] Further, the power source assembly is a vibration motor, a linear actuator, a piezoelectric ceramic, a voice coil motor, a reciprocating mechanism, a gear assembly or a particle emitter.
[0014] Further, the excitation unit has two or more excitation chambers separated from each other, and the stimulation unit has the same number of stimulation chambers as the excitation chambers, and the conducting unit is connected between each excitation chamber and each stimulation chamber in a one-to-one correspondence.
[0015] Further, the stimulation unit includes a base body, and a plurality of stimulation chambers are arranged in a spherical fan shape in a ring array in the base body.
[0016] Further, the stimulation unit includes a main cavity and a plurality of auxiliary cavities, the inner cavities of the main cavity and the auxiliary cavities are the stimulation chambers, the trunk part of the main cavity is a column, and the top end part is a rotating body, a plurality of auxiliary cavities are connected to the trunk part of the main cavity in a uniform circumferential direction, and corrugated grooves are formed on the outer wall of the auxiliary cavities.
[0017] Further, the stimulation unit includes a main cavity and a plurality of auxiliary cavities, the inner cavities of the main cavity and the auxiliary cavities are the stimulation chambers, the trunk part of the main cavity is a two-stage stepped column with a small top and a large bottom, and the top end part is a rotating body, a plurality of auxiliary cavities are connected to the trunk part of the main cavity in a uniform circumferential direction, and a rib plate is connected between the top of the auxiliary cavity and the main cavity.
[0018] The utility model further provides the application of the driving device in the tactile feedback equipment.
[0019] The utility model has the advantages of:
[0020] The kinetic energy generated by vibration of the power source assembly and the potential energy brought by the force of the vibration are converted into vibration of the fluid medium in the excitation chamber, the kinetic energy is then conducted to the fluid medium in the stimulation chamber through the conducting unit, the vibration of the fluid medium in the stimulation chamber causes the inner wall of the stimulation chamber to continuously change in pressure, thereby extruding the stimulation unit to generate continuous deformation, realizing corresponding tactile feedback, and the fluid medium only needs a small amount to generate and transmit fluctuation and oscillation energy, therefore the volume requirement of the excitation chamber and the stimulation chamber is small, the number can be set according to requirements, and high-density distribution is realized.
[0021] In the driving device, the stimulation unit and the excitation unit are separated, so that there is more optional space when selecting the power source assembly, the power source assembly can be selected to provide greater amplitude tactile feedback, and the volume and arrangement space of the power source assembly are not limited. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a structural schematic view of the driving device of an embodiment of the utility model;
[0023] Figure 2 It is a structural schematic view of the stimulation unit in the driving device of an embodiment of the utility model;
[0024] Figure 3 It is Figure 2 It is a structural schematic view of the stimulation unit in another view.
[0025] Figure 4 It is a structural schematic view of the stimulation unit in the driving device of an embodiment of the utility model;
[0026] Figure 5 It is Figure 4 It is a structural schematic view of the stimulation unit in another view.
[0027] BRIEF DESCRIPTION OF DRAWINGS
[0028] 1, excitation unit; 12, excitation chamber; 13, power source assembly;
[0029] 2, stimulation unit; 21, base body; 22, stimulation chamber; 23, main cavity; 24, auxiliary cavity; 25, corrugated groove; 26, rib plate;
[0030] 3, conducting unit; 31, conduit; 32, pressure sensor. DETAILED DESCRIPTION
[0031] The following embodiments and features in the embodiments can be combined with each other under the condition of no conflict.
[0032] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present application, and thus only the components related to the present application are shown in the diagrams, rather than the number, shape and size of the components in actual implementation. The shapes, number and proportions of the components in actual implementation can be changed arbitrarily, and the component layout pattern can be more complex. In addition, the description of "a plurality of" in the specification means two or more; the meaning of "and / or" in the specification includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B schemes.
[0033] Referring to Figures 1 to 3 .
[0034] In an optional embodiment of the present application, a driving device comprises:
[0035] The excitation unit 1 has an excitation chamber 12, and a power source assembly 13 is arranged in the excitation chamber 12 and filled with fluid medium;
[0036] The stimulation unit 2 has a stimulation chamber 22, and the stimulation chamber 22 is filled with fluid medium;
[0037] The conduction unit 3 is connected between the excitation unit 1 and the stimulation unit 2, and is used for conducting the kinetic energy of the fluid medium in the excitation chamber 12 to the fluid medium in the stimulation chamber 22.
[0038] The driving device is characterized in that the kinetic energy generated by the vibration of the power source assembly 13 and the potential energy brought by the vibration force are converted into the vibration of the fluid medium in the excitation chamber 12, the kinetic energy is further transmitted to the fluid medium in the stimulation chamber 22 through the transmission unit 3, the vibration of the fluid medium in the stimulation chamber 22 causes the inner wall of the stimulation chamber 22 to continuously change in pressure, thereby extruding the stimulation unit 2 to generate continuous deformation, realizing the corresponding tactile feedback, and the fluid medium only needs a small amount to generate and transmit the energy of fluctuation and oscillation, so the volume of the excitation chamber 12 and the stimulation chamber 22 is small, and the number can be set according to the requirement, realizing high-density distribution. The driving device can be applied to the field including tactile feedback, the stimulation unit 2 can be installed at the part of the human body where stimulation is required, realizing tactile feedback control at a certain distance, and achieving the improved effect of high-density and small volume of the tactile feedback array.
[0039] In the utility model, the fluid medium includes but is not limited to liquid, particulate matter and solid-liquid mixture.
[0040] In an embodiment, the power source assembly 13 is a vibration motor. Of course, the power source assembly can also be other devices capable of generating vibration, and the utility model does not make special limitation.
[0041] In an embodiment, the stimulation unit 2 is made of deformable material. The deformable material includes but is not limited to elastic material, flexible material and composite material, such as rubber, silica gel and silica gel resin.
[0042] In the utility model, the transmission unit 3 is used as a communication bridge for transmitting various tactile languages composed of frequency, amplitude and rhythm difference.
[0043] In an embodiment, the transmission unit 3 is a conduit 31 connected to the excitation chamber 12 and the stimulation chamber 22 at both ends, and the conduit 31 is filled with fluid medium.
[0044] In an embodiment, the transmission unit 3 is a thread capable of transmitting the kinetic energy of the fluid medium inserted into the excitation chamber 12 and the stimulation chamber 22 at both ends.
[0045] In a preferred embodiment, the conduit 31 is a flexible conduit, and the thread is a flexible thread or a rigid-flexible coupling thread. The thread includes but is not limited to string, flexible fabric woven guide rope, metal wire core and flexible material (including but not limited to silk, nylon, plastic, rubber material or composite material) mixed woven guide rope. The thread transmits vibration with certain tension and can effectively transmit vibration.
[0046] Of course, the utility model can also be used in the conduit containing fluid medium, which can make the tactile feedback more effectively transmitted.
[0047] In addition, particles can be added to the conduit containing fluid medium to improve the transmission effect, or the conduit can be filled with flowable particles, including but not limited to water pearls and gel particles, and the power of the excitation unit can be transmitted to the surface of the stimulation unit through the interaction of the particles.
[0048] In an embodiment, the conduit 31 is provided with a pressure sensor 32. The pressure in the stimulation unit 2 can be judged or calculated by the pressure change displayed in the pressure sensor 32. The difference between the peak and the trough of the pressure change can be used as the strength of the tactile feedback generated by the stimulation unit 2. The speed of the pressure change and the fluctuation can be used as the frequency of the tactile feedback generated by the stimulation unit 2.
[0049] In an embodiment, the excitation unit 1 has a plurality of cylindrical excitation chambers 12.
[0050] For the stimulation unit 2, three embodiments are provided below, and the application can also have other designs:
[0051] In an embodiment, as shown in Figure 1 , the stimulation unit 2 includes a base 21, and a plurality of stimulation chambers 22 in the form of spherical sectors are arranged in an annular array in the base 21. The base 21 can be a rotating body, such as a hemisphere as shown in the figure.
[0052] In an embodiment, as shown in Figure 2 and 3 , the stimulation unit 2 includes a main cavity 23 and a plurality of auxiliary cavities 24, and the inner cavities of the main cavity 23 and the auxiliary cavities 24 are the stimulation chambers 22. The trunk portion of the main cavity 23 is a cylinder, and the top portion is a rotating body, such as a hemisphere. A plurality of auxiliary cavities 24 are uniformly connected to the trunk portion of the main cavity 23 in the circumferential direction, and the outer wall of the auxiliary cavity 24 is provided with a corrugated groove 25. The top portion of the rotating body will produce a normal direction expansion movement under the vibration drive of the fluid medium, and the auxiliary cavity 24 can be stretched and contracted when driven, so as to promote the up-down displacement of the rotating body portion. The combination of the auxiliary cavities 24 at different positions can make the top rotating body portion produce displacement in various tangential directions. This structure design realizes multi-dimensional tactile feedback and increases the richness of tactile feedback.
[0053] As shown in Figure 4 and 5As shown, the stimulation unit 2 comprises a main cavity 23 and a plurality of auxiliary cavities 24, the inner cavities of the main cavity 23 and the auxiliary cavities 24 are the stimulation chambers 22, the trunk part of the main cavity 23 is a two-step column body with a small top and a large bottom, and the top end part is a rotating body such as a hemisphere, a plurality of auxiliary cavities 24 are connected to the trunk part of the main cavity 23 in a circumferential direction, and the top of the auxiliary cavity 24 is connected with the main cavity 23 through a web plate 26. In this way, when the inner wall of the main chamber of the stimulation unit is subjected to pressure, the top will expand and deform, generating a normal displacement to realize tactile feedback in the normal direction, and when the inner wall of the auxiliary chamber of the stimulation unit is subjected to pressure, the auxiliary chamber will bend and deform in a direction deviating from the axis, and this bending deformation is transmitted to the main chamber through the web plate connected to the top of the main chamber, thereby realizing tactile feedback in the tangential direction, thereby realizing multi-dimensional tactile feedback function.
[0054] In an embodiment, the excitation unit 1 has two or more excitation chambers 12 separated from each other, the stimulation unit 2 has the same number of stimulation chambers 22 as the excitation chambers 12, and the conductive unit 3 is connected between each excitation chamber 12 and each stimulation chamber 22. The design of multiple chambers can independently or in combination produce different forms and different intensities of movement. The number, structure, shape, size and distribution of the stimulation chamber 22 are not limited, as long as the required target movement form can be realized, which can be set according to actual needs.
[0055] In addition, different numbers of vibration sensors and different vibration parameters for different vibration sensors can produce different vibration combinations and changes, convert to produce different energy delivery rhythms and feeling changes, the energy form transmitted to the stimulation unit 2 will be different, which can drive the deformation state of the stimulation unit 2 to change accordingly, produce different forms of movement, thereby producing tactile feedback coding similar to tactile language, producing different feeling tactile feedback, realizing high richness and high level feeling tactile feedback, achieving high fidelity and high immersion effect of tactile feedback in human-computer interaction, stronger interactive immersion and experience.
[0056] The utility model can be applied to including but not limited to artificial limb wearing, and provides certain tactile feedback for artificial limb wearer.
[0057] The utility model integrates two or more of driving, feedback and sensing, and the driving device can be applied to the field of tactile feedback including but not limited to, and the specific structure of the driving device presents the structural characteristics that the stimulation unit and the excitation unit are separated by a distance, solves the problems of low array density, single dimension, small amplitude, insufficient tactile feedback stimulation and insufficient wearing comfort, etc.
[0058] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A driving device, characterized in that, include: The excitation unit has an excitation chamber, in which a power source assembly is installed and filled with a fluid medium; The stimulation unit has a stimulation chamber filled with a fluid medium. The conduction unit, connected between the excitation unit and the stimulation unit, is used to conduct the kinetic energy of the fluid medium in the excitation chamber to the fluid medium in the stimulation chamber.
2. The driving device as described in claim 1, characterized in that, The stimulation unit is made of a deformable material.
3. The driving device as described in claim 1, characterized in that, The conduction unit is a conduit with both ends connected to the excitation chamber and the stimulation chamber, respectively, and the conduit is filled with a fluid medium. Alternatively, the conduction unit is a chord for transmitting the kinetic energy of the fluid medium, with both ends inserted into the excitation chamber and the stimulation chamber, respectively.
4. The driving device as described in claim 3, characterized in that, The conduit is equipped with a pressure sensor.
5. The driving device as described in any one of claims 1 to 4, characterized in that, The power source component is a vibration motor, a linear actuator, a piezoelectric ceramic, a voice coil motor, a reciprocating motion mechanism, a gear assembly, or a particulate emitter.
6. The driving device as described in any one of claims 1 to 4, characterized in that, The excitation unit has two or more excitation chambers that are separated from each other, and the stimulation unit has the same number of stimulation chambers as the excitation chambers. The conduction unit is connected to each of the excitation chambers and each of the stimulation chambers in a one-to-one correspondence.
7. The driving device according to any one of claims 1 to 4, characterized in that, The stimulation unit includes a matrix, within which are arranged a plurality of stimulation chambers in a ring-shaped array in the form of spherical fans.
8. The driving device as described in any one of claims 1 to 4, characterized in that, The stimulation unit includes a main cavity and multiple secondary cavities. The inner cavities of the main cavity and the secondary cavities are the stimulation chambers. The main cavity is divided into a column and a rotating part at the top. The multiple secondary cavities are evenly connected to the main cavity in a circumferential direction. Corrugated grooves are formed on the outer wall of the secondary cavities.
9. The driving device as described in any one of claims 1 to 4, characterized in that, The stimulation unit includes a main cavity and multiple secondary cavities. The inner cavities of the main cavity and the secondary cavities are the stimulation chambers. The main cavity is divided into a two-stage stepped column with a smaller upper section and a larger lower section, and the top part is a rotating body. The multiple secondary cavities are evenly connected to the main cavity in a circumferential direction. The top of the secondary cavities is connected to the main cavity by a rib plate.