WO2025118694A1 - Vibration device, driving circuit and electronic apparatus - Google Patents

Abstract

Disclosed in the present invention are a vibration device, a driving circuit and an electronic apparatus. The vibration device comprises a first linear motor, a second linear motor, a connecting component and a first rotating component, wherein the first linear motor and the second linear motor are respectively arranged at two ends of the connecting component, the vibration directions of the first linear motor and the second linear motor being parallel to each other and both perpendicular to the axial direction of the connecting component; and the first rotating component is fixed on the connecting component, the first rotating component driving the first linear motor and the second linear motor to rotate around the axis of the connecting component.

Description

Vibration device, driving circuit and electronic equipment Technical Field

The present invention relates to the technical field of vibration devices, and more specifically, to a vibration device, a driving circuit and an electronic device.

Background Art

Linear Resonant Actuator (LRA) has been widely used in various vibration occasions of consumer electronics, especially games and AR/VR products, due to its advantages such as strong, rich, crisp vibration and low energy consumption.

The richness of vibration in a single direction and at a single frequency is limited and can no longer meet the vibration needs of current consumer products.

Summary of the invention

An object of an embodiment of the present invention is to provide a new technical solution that can provide rich vibration sensations.

According to a first aspect of the present invention, a vibration device is provided, the vibration device comprising a first linear motor, a second linear motor, a connecting component and a first rotating component, the first linear motor and the second linear motor are respectively arranged at two ends of the connecting component, and the vibration directions of the first linear motor and the second linear motor are parallel and perpendicular to the axis direction of the connecting component;

The first rotating component is fixed on the connecting component, and is used to drive the vibration directions of the first linear motor and the second linear motor to rotate around the axis of the connecting component.

Optionally, the vibration device further comprises a first spherical shell and a second spherical shell, the first linear motor is arranged in the first spherical shell, and the second linear motor is arranged in the first spherical shell. Two spherical shells.

Optionally, the vibration device also includes a second rotating component and a third rotating component. The second rotating component is used to drive the first linear motor to rotate in the first spherical shell so that the vibration direction of the first linear motor changes in three-dimensional space; the third rotating component is used to drive the second linear motor to rotate in the second spherical shell so that the vibration direction of the second linear motor changes in three-dimensional space.

According to a second aspect of the present disclosure, a driving circuit of a vibration device is provided, wherein the vibration device comprises a first linear motor, a second linear motor, a connecting component and a first rotating component, wherein the first linear motor and the second linear motor are respectively arranged at two ends of the connecting component, and the vibration directions of the first linear motor and the second linear motor are parallel and perpendicular to the axis direction of the connecting component; the first rotating component is fixed to the connecting component;

The driving circuit includes a first driving device and a second driving device;

The first driving device is configured to control the first rotating component to rotate so that the vibration directions of the first linear motor and the second linear motor change within a first plane, wherein the first plane is a plane perpendicular to the axis of the connecting component;

The second driving device is configured to drive the first linear motor and the second linear motor in phase so that the vibration device moves in a first direction; or to drive the first linear motor and the second linear motor in reverse phase so that the vibration device rotates around a first axis;

The first direction is the vibration direction of the first linear motor, and the first axis is perpendicular to the axis of the connecting component and perpendicular to the first direction.

Optionally, the second driving device includes a first signal output module, a first control module, a same-phase output module, and an opposite-phase output module.

The first signal output module is used to output a first driving signal to the first linear motor;

The first control module is used to control the same-phase output module to work when the first linear motor and the second linear motor are driven in the same phase; and to control the opposite-phase output module to work when the first linear motor and the second linear motor are driven in opposite phases;

The in-phase output module is used to output the first driving signal to the second linear motor;

The inverting output module is used to perform inverting processing on the first driving signal to obtain a second driving signal, and output the second driving signal to the second linear motor.

Optionally, a first end of the first signal output module is connected to a first end of the first linear motor, and a second end of the first signal output module is connected to a second end of the first linear motor.

Optionally, the in-phase output module includes a first switch and a second switch, the first switch is connected between a first end of the first signal output module and a first end of the second linear motor, and the second switch is connected between a second end of the first signal output module and a second end of the second linear motor;

When the first control module controls the in-phase output module to work, both the first switch and the second switch are turned on.

Optionally, the inverting output module includes a third switch and a fourth switch, the third switch is connected between the first end of the first signal output module and the second end of the second linear motor, and the fourth switch is connected between the second end of the first signal output module and the first end of the second linear motor;

When the first control module controls the inverting output module to work, the third switch and the fourth switch are controlled to be turned on.

Optionally, the second driving device includes a second signal output module, a third signal output module, a second control module and a gating module corresponding to each linear motor.

The second signal output module is used to output a third driving signal;

The third signal output module is used to output a fourth driving signal, wherein the third driving signal and the fourth driving signal have opposite phases;

The second control module is used to control the state of the gating module;

The gating module is used to transmit the third driving signal to the corresponding linear motor in a first state, and to transmit the fourth driving signal to the corresponding linear motor in a second state.

Optionally, the second driving device includes a DC power supply and an H-bridge driving circuit corresponding to each linear motor, wherein the H-bridge driving circuit is connected between the DC power supply and the corresponding linear motor;

When the first linear motor and the second linear motor are driven in phase, the The H-bridge driving circuit corresponding to the first linear motor and the H-bridge driving circuit corresponding to the second linear motor output driving signals with the same phase;

When the first linear motor and the second linear motor are driven in anti-phase, the H-bridge driving circuits corresponding to the first linear motor and the second linear motor output driving signals with opposite phases.

Optionally, the vibration device further includes a second rotating component and a third rotating component.

The driving circuit includes a third driving device and a fourth driving device;

The third driving device is configured to control the second rotating member to rotate so as to change the vibration direction of the first linear motor in a three-dimensional space;

The fourth driving device is configured to control the third rotating member to rotate so as to change the vibration direction of the second linear motor in a three-dimensional space.

According to a third aspect of the present disclosure, an electronic device is provided, comprising the driving circuit according to the second aspect of the present disclosure.

In an embodiment of the present disclosure, through the first rotating component, the two linear motors can be reused, so that the vibration device can achieve directional tactile sensation of translation in multi-dimensional directions and directional tactile sensation of rotation around multi-dimensional directions, providing a tactile experience that is completely different from existing vibrations and can also reduce the cost and weight of the vibration device.

Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

FIG1 is a schematic diagram of a vibration device provided according to an embodiment of the present disclosure;

FIG2 is a schematic diagram of a directional acceleration waveform of a linear motor provided according to an embodiment of the present disclosure;

FIG3 is a schematic diagram of a vibration device provided according to an embodiment of the present disclosure;

FIG4 is a block diagram of a second driving device provided according to an embodiment of the present disclosure;

FIG5 is a circuit diagram of a second driving device provided according to an embodiment of the present disclosure;

FIG6 is a block diagram of a second driving device provided according to an embodiment of the present disclosure;

FIG7 is a circuit diagram of a second driving device provided according to an embodiment of the present disclosure;

FIG8 is a circuit diagram of a second driving device provided according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

<Vibration device>

FIG. 1 is a schematic diagram of a vibration device provided according to an embodiment of the present disclosure.

As shown in FIG. 1 , the vibration device 100 may include a first linear motor LRA1 , a second linear motor LRA2 , a connecting member 110 , and a first rotating member 120 .

The first linear motor LRA1 and the second linear motor LRA2 are respectively disposed at two ends of the connection component. The vibration directions of the first linear motor LRA1 and the second linear motor LRA2 are parallel and perpendicular to the axis direction of the connection component 110 .

The first rotating component 120 is fixed on the connecting component 110 , and is used to drive the first linear motor LRA1 and the second linear motor LRA2 to rotate around the axis of the connecting component 110 .

The connecting component 110 in this embodiment can be a component of any shape. In one example, the connecting component 110 can be a rod-shaped component.

The linear motor realizes vibration touch through the periodic reciprocating motion of the internal vibrator. When the directional acceleration waveform with asymmetric amplitude in the positive and negative directions as shown in FIG2 is output, the magnitude of the force in the positive and negative directions perceived by the human hand is also different. After the forces in the two directions are superimposed, the human hand can feel the tactile sensation in a single direction, that is, the directional tactile sensation in the first direction, where the first direction is the direction where the larger force is located. The horizontal axis of FIG2 represents time, and the vertical axis represents acceleration.

Furthermore, the acceleration waveform shown in FIG. 2 may be used as a target, and the voltage waveform required to realize the acceleration waveform may be calculated according to specific model parameters of the linear motor, that is, a directional drive waveform designed for the linear motor.

The first linear motor LRA1 and the second linear motor LRA2 are driven in phase, that is, the first linear motor LRA1 and the second linear motor LRA2 are driven by directional driving waveforms with the same phase, so that the two linear motors produce the same directional tactile sensation, and the superposition of directional tactile sensations is achieved, so that the vibration device can achieve directional tactile sensation along the first direction.

The first linear motor LRA1 and the second linear motor LRA2 are driven in anti-phase, that is, the first linear motor LRA1 and the second linear motor LRA2 are driven by directional driving waveforms with opposite phases, so that the two linear motors produce opposite directional tactile sensations, so that the vibration device can achieve directional tactile sensations rotating around the first axis.

In the vibration device 100 shown in FIG1 , the x-axis, y-axis and z-axis may be perpendicular to each other, wherein the axial direction of the connecting component may be the x-axis direction, the first direction may be the z-axis direction, the first axis may be the y-axis direction, and the two linear motors and the connecting component form an I-shaped structure. The vibration device in this embodiment may be arranged on an electronic device such as a game controller or a steering wheel of a vehicle. When a user operates an electronic device with both hands, the user's hands may be respectively held on the installation positions of the two linear motors, and when a user operates an electronic device with one hand, the user's single hand may be held on the connecting component.

The first rotating component 120 may be composed of a rotating motor SM (usually a stepping motor) and a necessary transmission mechanism 121. The rotating motor SM may be fixed inside the connecting component 110. When the rotating motor SM is powered on, it drives the transmission mechanism 121 to rotate within a range of at least 90 degrees, thereby driving the first linear motor LRA1 and the second linear motor LRA2 to rotate around the axis of the connecting component 110.

Both ends of the connecting component 110 are connected to the first linear motor LRA1 and the second linear motor LRA2 respectively. Therefore, through the first rotating component 120, the vibration directions of the first linear motor LRA1 and the second linear motor LRA2 can be adjusted to any angle within 360 degrees in the yOz plane.

On this basis, by combining the in-phase driving and anti-phase driving of the first linear motor LRA1 and the second linear motor LRA2, the vibration device 100 can realize multi-dimensional directional tactile sensations. When the vibration device is applied to electronic devices such as gaming devices, virtual reality devices, or augmented reality devices, these directional tactile sensations can be used to simulate scenes such as movement, steering, and unidirectional force in electronic devices, enriching the tactile experience of electronic devices.

For example, when the first rotating component 120 adjusts the vibration direction of the first linear motor LRA1 and the second linear motor LRA2 to be parallel to the z-axis, as shown in FIG. 1 , the vibration device can realize directional tactile sensation of translation along the positive direction or negative direction of the z-axis, and directional tactile sensation of rotation clockwise or counterclockwise around the y-axis.

For another example, when the first rotating component 120 adjusts the vibration directions of the first linear motor LRA1 and the second linear motor LRA2 to be parallel to the y-axis, as shown in FIG. 3 , the vibration device can realize directional tactile sensation of translation along the positive or negative direction of the y-axis, and directional tactile sensation of rotation clockwise or counterclockwise around the z-axis.

In an embodiment of the present disclosure, through the first rotating component, the two linear motors can be reused, so that the vibration device can achieve directional tactile sensation of translation in multi-dimensional directions and directional tactile sensation of rotation around multi-dimensional directions, providing a tactile experience that is completely different from existing vibrations and can also reduce the cost and weight of the vibration device.

In one embodiment of the present disclosure, as shown in FIG. 1 , the vibration device 100 may further include a first spherical housing 130 and a second spherical housing 140 , the first linear motor LRA1 may be disposed in the first spherical housing 130 , and the second linear motor LRA2 may be disposed in the second spherical housing 140 .

In one embodiment of the present disclosure, the vibration device may further include a second rotating component and a third rotating component, the second rotating component is used to drive the first linear motor to rotate in the first spherical shell so that the vibration direction of the first linear motor changes in three-dimensional space; the third rotating component is used to drive the second linear motor to rotate in the second spherical shell so that the vibration direction of the second linear motor changes in three-dimensional space.

In this embodiment, the second rotating component and the third rotating component can each rotate at least 90 degrees along the three-axis direction. The second rotating component can adjust the vibration direction of the first linear motor LRA1 to any angle within the three-dimensional space. The third rotating component can adjust the vibration direction of the second linear motor LRA2 to any angle within the three-dimensional space.

For example, in the initial state, the vibration direction of the first linear motor LRA1 and the second linear motor LRA2 is parallel to the y-axis, and the axis direction of the connecting component is parallel to the x-axis. After the second rotating component is powered on, it drives the first linear motor LRA1 to rotate, and the vibration direction of the first linear motor LRA1 is changed to be parallel to the z-axis. After the third rotating component is powered on, it drives the second linear motor LRA2 to rotate, and the vibration direction of the second linear motor LRA2 is changed to be parallel to the z-axis, and the axis direction of the connecting component is parallel to the x-axis, so that the vibration device can achieve directional tactile sensation of translation along the positive or negative direction of the z-axis, and directional tactile sensation of rotation clockwise or counterclockwise around the y-axis. After the second rotating component is powered on, it drives the first linear motor LRA1 to rotate, and the vibration direction of the first linear motor LRA1 is changed to be parallel to the x-axis. After the third rotating component is powered on, it drives the second linear motor LRA2 to rotate, and the vibration direction of the second linear motor LRA2 is changed to be parallel to the x-axis. The axis direction of the connecting component is parallel to the y-axis, so that the vibration device can achieve directional tactile sensation along the positive or negative direction of the x-axis, and directional tactile sensation of clockwise or counterclockwise rotation around the z-axis. After the second rotating component is powered on, it drives the first linear motor LRA1 to rotate, and the vibration direction of the first linear motor LRA1 is changed to be parallel to the y-axis. After the third rotating component is powered on, it drives the second linear motor LRA2 to rotate, and the vibration direction of the second linear motor LRA2 is changed to be parallel to the y-axis. The axis direction of the connecting component is parallel to the z-axis, so that the vibration device can achieve directional tactile sensation along the positive or negative direction of the y-axis, and directional tactile sensation of clockwise or counterclockwise rotation around the x-axis.

Through the rotating component in this embodiment, the vibration direction of the two linear motors can be adjusted in any direction in the three-dimensional space. On this basis, combined with the in-phase drive and anti-phase drive of the first linear motor and the second linear motor, the vibration device can achieve directional tactile sensation of translation in any direction in the three-dimensional space, as well as directional tactile sensation of rotation in any direction in the three-dimensional space.

<Drive circuit>

The present disclosure also provides a driving circuit for a vibration device, wherein the vibration device includes a first linear motor, a second linear motor, a connecting component and a first rotating component, wherein the first linear motor and the second linear motor are respectively arranged at two ends of the connecting component, and the vibration directions of the first linear motor and the second linear motor are parallel and perpendicular to the axis direction of the connecting component; the first rotating component is fixed to the connecting component, and the first rotating component is used to drive the connecting component to rotate around the axis of the connecting component, so that the vibration directions of the first linear motor and the second linear motor rotate around the axis of the connecting component.

The driving circuit includes a first driving device and a second driving device.

The first driving device is configured to control the first rotating component to rotate so that the vibration directions of the first linear motor and the second linear motor change within a first plane, wherein the first plane is a plane perpendicular to the axis of the connecting component.

The second driving device is configured to drive the first linear motor and the second linear motor in phase so that the vibration device moves in a first direction, or to drive the first linear motor and the second linear motor in opposite phases so that the vibration device rotates around a first axis. The first direction is the vibration direction of the first linear motor, and the first axis is perpendicular to the axis of the connecting component and perpendicular to the first direction.

The first rotating component 120 can adjust the vibration directions of the first linear motor LRA1 and the second linear motor LRA2 to any angle within a 360-degree range in the yOz plane.

The first linear motor LRA1 and the second linear motor LRA2 are driven in phase, that is, the first linear motor LRA1 and the second linear motor LRA2 are driven by directional driving waveforms with the same phase, so that the two linear motors produce the same directional tactile sensation, and the superposition of directional tactile sensations is achieved, so that the vibration device can achieve directional tactile sensation along the first direction.

The first linear motor LRA1 and the second linear motor LRA2 are driven in anti-phase, that is, the first linear motor LRA1 and the second linear motor LRA2 are driven by directional driving waveforms with opposite phases, so that the two linear motors produce opposite directional tactile sensations, so that the vibration device can achieve directional tactile sensations rotating around the first axis.

In an embodiment of the present disclosure, through the first rotating component, the two linear motors can be reused, so that the vibration device can achieve directional tactile sensation of translation in multi-dimensional directions and directional tactile sensation of rotation around multi-dimensional directions, providing a tactile experience that is completely different from existing vibrations and can also reduce the cost and weight of the vibration device.

In one embodiment of the present disclosure, the vibration device further includes a second rotating component and a third rotating component. The drive circuit may further include a third drive device and a fourth drive device, wherein the third drive device is configured to control the rotation of the second rotating component to change the vibration direction of the first linear motor in a three-dimensional space; and the fourth drive device is configured to control the rotation of the third rotating component to change the vibration direction of the second linear motor in a three-dimensional space.

The vibration direction of the first linear motor LRA1 can be adjusted to any angle within the three-dimensional space through the second rotating component. The vibration direction of LRA2 can be adjusted at any angle within the three-dimensional space.

In this embodiment, the second rotating component and the third rotating component can enable the vibration device to achieve directional tactile sensation of translation in any direction in three-dimensional space and directional tactile sensation of rotation around any direction in three-dimensional space.

In one embodiment of the present disclosure, as shown in FIG. 4 , the second driving device 4000 may include a first signal output module 4100 , a first control module 4200 , a non-inverting output module 4300 , and an inverting output module 4400 .

The first signal output module 4100 is used to output a first driving signal to the first linear motor.

The first control module 4200 is used to control the same-phase output module 4300 to work when the first linear motor LRA1 and the second linear motor LRA2 are driven in the same phase; and to control the opposite-phase output module 4400 to work when the first linear motor LRA1 and the second linear motor LRA2 are driven in opposite phases.

The in-phase output module 4300 is used to output the first driving signal to the second linear motor.

The inversion output module 4400 is used to perform inversion processing on the first drive signal to obtain a second drive signal and output the second drive signal to the second linear motor.

In this embodiment, the first driving signal and the second driving signal are both directional driving waveforms.

The first control module 4200 may control at most one of the in-phase output module 4300 and the inverting output module 4400 to work. Specifically, the first control module 4200 may control the in-phase output module 4300 to work and the inverting output module 4400 not to work. The first control module 4200 may also control the in-phase output module 4300 not to work and the inverting output module 4400 to work. The first control module 4200 may control both the in-phase output module 4300 and the inverting output module 4400 not to work.

When the first control module controls the in-phase output module to work, the second driving device 4000 simultaneously drives the first linear motor LRA1 and the second linear motor LRA2 through the first driving signal, that is, driving the first linear motor LRA1 and the second linear motor LRA2 in phase, which can make the first linear motor LRA1 and the second linear motor LRA2 produce the same directional touch, realize the superposition of directional touch, and enable the vibration device to achieve directional tactile sensation along the first direction.

When the first control module controls the inverting output module to work, the second driving device 4000 drives the first linear motor LRA1 through the first driving signal and drives the second linear motor LRA2 through the second driving signal, that is, the first linear motor LRA1 and the second linear motor LRA2 are driven in reverse phase, so that The first linear motor LRA1 and the second linear motor LRA2 generate opposite directional tactile sensations, so that the vibration device can achieve a directional tactile sensation of rotation around the first axis.

Specifically, a first end of the first signal output module 4100 is connected to a first end of the first linear motor LRA1 , and a second end of the first signal output module 4100 is connected to a second end of the first linear motor LRA1 .

Further, as shown in Fig. 5, the in-phase output module 4300 includes a first switch S1 and a second switch S2, wherein the first switch S1 is connected between a first end of the first signal output module 4100 and a first end of the second linear motor LRA2, and the second switch S2 is connected between a second end of the first signal output module 4100 and a second end of the second linear motor LRA2. The control ends of the first switch S1 and the second switch S2 are both connected to the first control module 4200.

When the first control module 4200 controls the in-phase output module 4300 to work, the first switch S1 and the second switch S2 are both turned on. When the first control module 4200 controls the in-phase output module 4300 not to work, the first switch S1 and the second switch S2 are both turned off.

In this embodiment, the first switch S1 and the second switch S2 may both be provided by transistors, specifically, triodes or field effect transistors.

Furthermore, as shown in Figure 5, the inverting output module 4400 includes a third switch S3 and a fourth switch S4, the third switch S3 is connected between the first end of the first signal output module 4100 and the second end of the second linear motor LRA2, and the fourth switch S4 is connected between the second end of the first signal output module 4100 and the first end of the second linear motor LRA2.

When the first control module 4200 controls the inverting output module 4400 to work, the third switch S3 and the fourth switch S4 are controlled to be turned on. When the first control module 4200 controls the inverting output module 4400 not to work, the third switch S3 and the fourth switch S4 are controlled to be turned off.

In this embodiment, the third switch S3 and the fourth switch S4 may be provided by transistors, specifically triodes or field effect transistors.

In this embodiment, when the first linear motor LRA1 and the second linear motor LRA2 are driven in the same phase, the first switch S1 and the second switch S2 can be controlled to be turned on, and the third switch S3 and the fourth switch S4 can be turned off, so that the first linear motor LRA1 and the second linear motor LRA2 are connected in the same phase and in parallel between the first end and the second end of the first signal output module 4100.

When the first linear motor LRA1 and the second linear motor LRA2 are driven in opposite phases, the control The first switch S1 and the second switch S2 are turned off, and the third switch S3 and the fourth switch S4 are turned on, so that the first linear motor LRA1 and the second linear motor LRA2 are connected in anti-phase parallel between the first end and the second end of the first signal output module 4100 .

By driving the vibration device through the second driving device of this embodiment, the first linear motor and the second linear motor can share the first signal output module, which can reduce the hardware cost of the second driving device.

On the basis of this embodiment, when the vibration device further includes other linear motors, the second driving device may further include an in-phase output module and an in-phase output module corresponding to each linear motor.

In another embodiment of the present disclosure, as shown in FIG. 6 , the second driving device 6000 includes a second signal output module 6100, a third signal output module 6200, a second control module 6300, and a gating module 6400 corresponding to each linear motor.

The second signal output module 6100 is used to output a third driving signal.

The third signal output module 6200 is used to output a fourth driving signal, wherein the third driving signal and the fourth driving signal have opposite phases.

The second control module 6600 is used to control the state of the gating module 6400 .

The gating module 6400 is used to transmit the third driving signal to the corresponding linear motor in the first state, and to transmit the fourth driving signal to the corresponding linear motor in the second state.

When the second control module controls the gating module 5400 corresponding to the first linear motor LRA1 to be in the first state and the gating module 5400 corresponding to the second linear motor LRA2 to be in the first state, the driving circuit 3000 drives the first linear motor LRA1 and the second linear motor LRA2 simultaneously through the third driving signal, that is, drives the first linear motor LRA1 and the second linear motor LRA2 in the same phase, so that the first linear motor LRA1 and the second linear motor LRA2 can produce the same directional tactile sensation, realize the superposition of directional tactile sensation, and enable the vibration device to realize the directional tactile sensation of translation along the first direction. When the second control module controls the gating module 5400 corresponding to the first linear motor LRA1 to be in the first state and the gating module 5400 corresponding to the second linear motor LRA2 to be in the second state, the driving circuit 3000 drives the first linear motor LRA1 through the third driving signal and drives the second linear motor LRA2 through the fourth driving signal, that is, drives the first linear motor LRA1 and the second linear motor LRA2 in opposite phases. The first linear motor LRA1 and the second linear motor LRA2 can generate opposite directional tactile sensations, so that the vibration device can achieve a directional tactile sensation of rotation around the first axis.

Specifically, as shown in Figure 7, the selection module 6300 includes a fifth switch S6 and a sixth switch S6, the fifth switch S6 is connected between the first end of the second signal output module 6100 and the first end of the corresponding linear motor, the sixth switch S6 is connected between the first end of the third signal output module 6200 and the first end of the corresponding linear motor, and the second end of the second signal output module 6100 and the second end of the third signal output module 6200 are both connected to the second end of the corresponding linear motor.

In this embodiment, when the first linear motor LRA1 and the second linear motor LRA2 are driven in phase, the fifth switch S5 corresponding to the first linear motor LRA1 may be controlled to be turned on, and the sixth switch S6 corresponding to the second linear motor LRA2 may be turned off, so that the pair of linear motors are connected in phase and in parallel between the first end and the second end of the second signal output module 6100. When the first linear motor LRA1 and the second linear motor LRA2 are driven in opposite phases, the fifth switch S5 corresponding to the first linear motor LRA1 may be controlled to be turned on, and the sixth switch S6 corresponding to the second linear motor LRA2 may be controlled to be turned on, so that one of the pair of linear motors is connected between the first end and the second end of the second signal output module 6100, and the other is connected between the first end and the second end of the third signal output module 6200.

By driving the vibration device through the second driving device of this embodiment, the control logic of the second driving device can be simple and clear, easy to implement, and the number of switches can be reduced.

On the basis of this embodiment, when the vibration device further includes other linear motors, the second driving device may further include a gating module corresponding to each linear motor one by one.

In another embodiment of the present disclosure, the second driving device may further include a direct current power supply DC and an H-bridge driving circuit corresponding to each linear motor, wherein the H-bridge driving circuit is connected between the direct current power supply and the corresponding linear motor.

When the first linear motor LRA1 and the second linear motor LRA2 are driven in phase, the H-bridge driving circuit corresponding to the first linear motor LRA1 and the H-bridge driving circuit corresponding to the second linear motor LRA2 output driving signals with the same phase. When the first linear motor LRA1 and the second linear motor LRA2 are driven in anti-phase, the H-bridge driving circuits corresponding to the first linear motor LRA1 and the second linear motor LRA2 output driving signals with opposite phases.

As shown in FIG8 , the H-bridge driving circuit may include a third control module 1211 and an H-bridge circuit. Among them, the H-bridge circuit includes a seventh switch S7, an eighth switch S4, a ninth switch S5 and a tenth switch S10, and the control ends of the seventh switch S7, the eighth switch S4, the ninth switch S5 and the tenth switch S10 are all connected to the third control module 1211, the seventh switch S7 is connected between the positive pole of the DC power supply DC and the first end of the corresponding linear motor, the eighth switch S4 is connected between the first end of the corresponding linear motor and the negative pole of the DC power supply DC, the ninth switch S5 is connected between the positive pole of the DC power supply DC and the second end of the corresponding linear motor, and the tenth switch S10 is connected between the second end of the corresponding linear motor and the negative pole of the DC power supply DC.

In this embodiment, the third control module 1211 performs PWM drive control on the seventh switch S7, the eighth switch S4, the ninth switch S5 and the tenth switch S10 in the H-bridge circuit so that the H-bridge circuit can output the first drive signal or the second drive signal to enable the vibration device to achieve corresponding directional touch.

In this embodiment, the H-bridge circuit corresponding to each linear motor can be independently controlled, and the second driving device only needs a DC power supply, so the hardware cost is relatively low.

<Electronic equipment>

The present disclosure also provides an electronic device, which may include the vibration device described in any of the aforementioned embodiments and the driving circuit described in any of the aforementioned embodiments.

Embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims (12)

A vibration device, characterized in that the vibration device comprises a first linear motor, a second linear motor, a connecting component and a first rotating component, wherein the first linear motor and the second linear motor are respectively arranged at two ends of the connecting component, and the vibration directions of the first linear motor and the second linear motor are parallel and perpendicular to the axis direction of the connecting component; The first rotating component is fixed on the connecting component, and is used to drive the vibration directions of the first linear motor and the second linear motor to rotate around the axis of the connecting component. The vibration device according to claim 1 is characterized in that the vibration device further comprises a first spherical shell and a second spherical shell, the first linear motor is arranged in the first spherical shell, and the second linear motor is arranged in the second spherical shell. The vibration device according to claim 2 is characterized in that the vibration device also includes a second rotating component and a third rotating component, the second rotating component is used to drive the first linear motor to rotate in the first spherical shell so that the vibration direction of the first linear motor changes in three-dimensional space; the third rotating component is used to drive the second linear motor to rotate in the second spherical shell so that the vibration direction of the second linear motor changes in three-dimensional space. A driving circuit for a vibration device, characterized in that the vibration device comprises a first linear motor, a second linear motor, a connecting component and a first rotating component, wherein the first linear motor and the second linear motor are respectively arranged at two ends of the connecting component, and the vibration directions of the first linear motor and the second linear motor are parallel and perpendicular to the axis direction of the connecting component; the first rotating component is fixed to the connecting component; The driving circuit includes a first driving device and a second driving device; The first driving device is configured to control the first rotating component to rotate so that the vibration directions of the first linear motor and the second linear motor change within a first plane, wherein the first plane is a plane perpendicular to the axis of the connecting component; The second driving device is configured to drive the first linear motor and the second linear motor in phase so that the vibration device moves in a first direction; or to drive the first linear motor and the second linear motor in reverse phase so that the vibration device rotates around a first axis; The first direction is the vibration direction of the first linear motor, and the first axis is perpendicular to the axis of the connecting component and perpendicular to the first direction. The driving circuit according to claim 4, characterized in that the second driving device comprises a first signal output module, a first control module, a non-phase output module, and an inverting output module. The first signal output module is used to output a first driving signal to the first linear motor; The first control module is used to control the same-phase output module to work when the first linear motor and the second linear motor are driven in the same phase; and to control the opposite-phase output module to work when the first linear motor and the second linear motor are driven in opposite phases; The in-phase output module is used to output the first driving signal to the second linear motor; The inverting output module is used to perform inverting processing on the first driving signal to obtain a second driving signal, and output the second driving signal to the second linear motor. The driving circuit according to claim 5, characterized in that a first end of the first signal output module is connected to a first end of the first linear motor, and a second end of the first signal output module is connected to a second end of the first linear motor. The driving circuit according to claim 6, characterized in that the in-phase output module comprises a first switch and a second switch, the first switch is connected between the first end of the first signal output module and the first end of the second linear motor, and the second switch is connected between the second end of the first signal output module and the second end of the second linear motor; When the first control module controls the in-phase output module to work, both the first switch and the second switch are turned on. The driving circuit according to claim 5, characterized in that the inverting output module comprising a third switch and a fourth switch, wherein the third switch is connected between the first end of the first signal output module and the second end of the second linear motor, and the fourth switch is connected between the second end of the first signal output module and the first end of the second linear motor; When the first control module controls the inverting output module to work, the third switch and the fourth switch are controlled to be turned on. The driving circuit according to claim 4, characterized in that the second driving device comprises a second signal output module, a third signal output module, a second control module and a gating module corresponding to each linear motor one by one, The second signal output module is used to output a third driving signal; The third signal output module is used to output a fourth driving signal, wherein the third driving signal and the fourth driving signal have opposite phases; The second control module is used to control the state of the gating module; The gating module is used to transmit the third driving signal to the corresponding linear motor in a first state, and to transmit the fourth driving signal to the corresponding linear motor in a second state. The driving circuit according to claim 4, characterized in that the second driving device comprises a DC power supply and an H-bridge driving circuit corresponding to each linear motor, wherein the H-bridge driving circuit is connected between the DC power supply and the corresponding linear motor; When the first linear motor and the second linear motor are driven in phase, the H-bridge driving circuit corresponding to the first linear motor and the H-bridge driving circuit corresponding to the second linear motor output driving signals with the same phase; When the first linear motor and the second linear motor are driven in anti-phase, the H-bridge driving circuits corresponding to the first linear motor and the second linear motor output driving signals with opposite phases. The driving circuit according to claim 4, characterized in that the vibration device further comprises a second rotating component and a third rotating component, The driving circuit includes a third driving device and a fourth driving device; The third driving device is configured to control the second rotating member to rotate so as to change the vibration direction of the first linear motor in a three-dimensional space; The fourth driving device is configured to control the third rotating member to rotate so as to change the vibration direction of the second linear motor in a three-dimensional space. An electronic device, characterized by comprising the driving circuit according to any one of claims 4 to 11.