Haptics panel and haptics apparatus
Disclosed in the embodiments of the present disclosure are a haptics panel and a haptics apparatus. By means of rationally designing structural parameters of a supporting structure, the resonance frequency of a haptics substrate is within 100 Hz-300 Hz, such that the haptics effect of the haptics panel based on vibration excited by an exciter in a low-frequency range can be effectively improved by means of using the resonance frequency of the haptics substrate; moreover, by means of rationally designing the structural parameters of the supporting structure and also preventing the supporting structure from buckling under the action of static and dynamic loads, the haptics panel can meet the requirements of a haptic design for a vibration amplitude and an acceleration under the condition that the haptics panel meets a rigid design.
1 . A haptics panel, comprising:
a haptics substrate;
a supporting substrate arranged opposite to the haptics substrate;
at least one exciter arranged between the haptics substrate and the supporting substrate, the exciter being configured to drive the haptics substrate to resonate along a horizontal direction of the haptics substrate;
at least one supporting structure arranged between the haptics substrate and the supporting substrate, wherein one end of the supporting structure is connected to the haptics substrate, and other end of the supporting structure is connected to the supporting substrate;
wherein structural parameters of the at least one supporting structure satisfy: a resonance frequency of the haptics substrate is within a preset range, and the at least one supporting structure does not buckle under an action of static load and dynamic load;
wherein the at least one supporting structure comprises:
a first connection structure fixed to a side of the haptics substrate facing the supporting substrate,
a second connection structure fixed to a side of the supporting substrate facing the haptics substrate, and
a supporting beam connecting the first connection structure and the second connection structure;
wherein the structural parameters of the at least one supporting structure are structural parameters of the supporting beam;
wherein the haptics panel further comprises:
a third connection structure fixedly connected to the side of the haptics substrate facing the supporting substrate, and
a supporting portion fixedly connected to the side of the supporting substrate facing the haptics substrate;
wherein orthographic projections of the third connection structure and the supporting portion on the supporting substrate do not overlap; a first gap is provided between the third connection structure and the supporting substrate, a second gap is provided between the supporting portion and the haptics substrate, the exciter is fixed between the third connection structure and the supporting portion, and the exciter is not in contact with the haptics substrate and the supporting substrate.
2 . The haptics panel according to claim 1 , wherein the structural parameters of the supporting beam satisfy a following relationship:
π
2
EI
(
K
l
)
2
>
mg
cos
θ
,
K
=
(
1
/
n
)
⋀
(
1
/
2
)
;
wherein E is an elastic modulus of the supporting beam, I is a moment of inertia of a cross section of the supporting beam, l is a height of the supporting beam, m is a mass of the haptics substrate carried by the at least one supporting structure, θ is a degree of an inclination angle of the haptics panel, and n is a constraint coefficient of the supporting beam, K is a boundary condition of the supporting beam, g is a gravitational acceleration.
3 . The haptics panel according to claim 2 , wherein n=4, or n=2, or n=0.5.
4 . The haptics panel according to claim 1 , wherein the structural parameters of the supporting beam satisfy a following relationship:
100
Hz
<
1
2
π
3
EI
l
3
*
m
<
300
Hz
;
wherein
1
2
π
3
EI
l
3
*
m
is the resonance frequency of the haptics substrate, E is an elastic modulus of the supporting beam, I is a moment of inertia of a cross section of the supporting beam, l is a height of the supporting beam, and m is a mass of the haptics substrate carried by the at least one supporting structure.
5 . The haptics panel according to claim 1 , wherein the supporting beam connects centers of the first connection structure and the second connection structure to form the at least one supporting structure which is “I”-shaped.
6 . The haptics panel according to claim 1 , wherein the supporting beam connects ends of the first connection structure and the second connection structure to form the at least one supporting structure which is “U”-shaped; an opening of the at least one supporting structure which is “U”-shaped faces toward a direction parallel to the haptics panel.
7 . The haptics panel according to claim 6 , wherein the opening of the at least one supporting structure which is “U”-shaped is toward a periphery of the haptics panel.
8 . The haptics panel according to claim 1 , wherein orthographic projections of the first connection structure and the second connection structure on the supporting substrate do not overlap, and the supporting beam connects adjacent ends of the first connection structure and the second connection structure to form the at least one supporting structure which is “Z”-shaped.
9 . The haptics panel according to claim 5 , wherein a cross-sectional shape of the supporting beam along a thickness direction of the haptics substrate is a rectangle or a circle.
10 . The haptics panel according to claim 2 , wherein four corners of the haptics substrate each is provided with one supporting structure.
11 . The haptics panel according to claim 10 , wherein a center of the haptics substrate is provided with one supporting structure.
12 . The haptics panel according to claim 11 , wherein any three positions on the haptics substrate are provided with three supporting structures, and the three supporting structures form three vertices of a triangle.
13 . The haptics panel according to claim 10 , wherein two supporting structures in an extension direction of a long side or a short side of the haptics substrate are symmetrically arranged.
14 . The haptics panel according to claim 1 , wherein the exciter is fixed to a side of the supporting beam.
15 . The haptics panel according to claim 1 , wherein a material of the supporting structure comprises metal or stainless steel.
16 . The haptics panel according to claim 1 , wherein the exciter is a piezoelectric film structure, a piezoelectric ceramic block structure or a linear motor.
17 . The haptics panel according to claim 1 , further comprising a touch layer located on a side of the haptics substrate facing away from the supporting substrate.
18 . A haptics apparatus, comprising the haptics panel according to claim 1 .