vibration sensing component

Abstract

The application provides a vibration sensing assembly, which comprises a fixing part for fixing support, a bearing part elastically connected to the fixing part, a functional part fixed to the bearing part, and a driving unit fixed to the functional part, the fixing part comprises an annular frame with a hollow cavity formed inside, at least three spaced apart cantilever beams extending from the inner side of the annular frame towards the hollow cavity, soft elastic blocks fixed between the cantilever beams and the functional part, and two fixed end beams symmetrically distributed on the opposite sides of the hollow cavity, the two ends of the fixed end beams are fixedly connected to the inner side of the annular frame, the middle part of the fixed end beams is spaced apart from the annular frame, the two fixed end beams are parallel to each other, the bearing part is accommodated in the hollow cavity and the two ends of the bearing part are fixed to the middle part of the two fixed end beams respectively. The scheme can realize sufficient vibration sensing and uniform acceleration distribution in a specific direction, and the vibration intensity in other directions is weak, so that the vibration experience is good.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tactile feedback, and particularly relates to a vibration sensing assembly. BACKGROUND

[0002] With the growing of electronic technology industry, electronic products play an increasingly important role in human daily life, and people's functional dependence on various electronic products is also increasingly deep, including but not limited to hearing, vision, smell and touch, etc. Among them, the touch mainly emphasizes the user's increasing dependence on the emerging electronic product in the process of use. Whether it is an electronic entertainment product or an electronic work product, it involves a lot of tactile needs of different vibration degrees and different vibration modes. Touchpad is an electronic device based on finger touch force and sliding on it to achieve the purpose of moving the cursor, which can be used for subsequent game product development and also can be used as a daily work device.

[0003] At present, users have put forward more and more stringent requirements for the vibration of touchpad, such as realizing directional vibration of touch screen in a certain degree of freedom direction on the basis of meeting the condition of compact assembly and not affecting other non-tactile functions, and limiting the vibration in other degrees of freedom as much as possible, and the directional vibration needs to meet the user's required vibration experience at the same time. The good degree of the vibration experience is generally measured by the uniformity and magnitude of the acceleration distribution. However, there is still a lack of touchpad vibration structure design that can meet the above tactile features in the market. SUMMARY

[0004] The purpose of the present application is to provide a vibration sensing assembly which can realize directional vibration of functional components in one direction and weak vibration intensity in other directions, and has sufficient vibration and uniform acceleration distribution in the directional vibration direction.

[0005] The technical solution of the present application is as follows: a vibration sensing assembly is provided, which comprises a fixing part for fixing support, a bearing part elastically connected to the fixing part, a functional component fixed to the bearing part, and a driving unit fixed to the functional component. The fixing part comprises an annular frame with a hollow cavity formed inside, at least three spaced apart cantilever beams extending from the inner side of the annular frame towards the hollow cavity, a soft elastic block fixed between the cantilever beams and the functional component, and two fixed end beams symmetrically distributed on the opposite sides of the hollow cavity. The two ends of the fixed end beam are fixedly connected to the inner side of the annular frame and the middle part of the annular frame forms a gap, and the two fixed end beams are parallel to each other. The bearing part is accommodated in the hollow cavity and its two ends are fixed to the middle part of the two fixed end beams respectively.

[0006] Further, the fixed end beam comprises two fixed protrusions protruding from the inner side of the ring frame and spaced apart, and a resilient beam connected between the two fixed protrusions, and the end of the bearing is fixed to the side of the resilient beam away from the ring frame.

[0007] Further, the resilient beam protrudes from the plate surface of the ring frame and gradually shrinks in cross-sectional area in the protruding direction, and the end of the bearing is fixed to the protruding end of the resilient beam.

[0008] Further, the bearing comprises a holding portion located in the middle and connecting feet connected to the two opposite sides of the holding portion, and the two connecting feet are respectively fixed to the two fixed end beams.

[0009] Further, the holding portion is located near a long side of the ring frame and in the middle, and the two connecting feet are respectively fixed to two diagonal positions of the holding portion, and the connecting feet extend along the inner edge of the ring frame.

[0010] Further, the holding portion is internally provided with a clearance, and the driving unit is accommodated in the clearance.

[0011] Further, the hollow cavity is rectangular, the fixed end beam and the cantilever beam are located on the short side of the hollow cavity, and four cantilever beams are respectively located at the four corner positions of the hollow cavity.

[0012] Further, the cantilever beam is bent towards one side of the ring frame to protrude from the plate surface of the ring frame, and the soft elastic block is fixed to the end of the protruding side of the cantilever beam, and the soft elastic block is made of silica gel or rubber material.

[0013] Further, the ring frame is provided with spaced apart assembly holes.

[0014] Further, the functional component comprises a touch screen module and / or a PCB module.

[0015] The beneficial effects of the present application are that the ring frame can be fixed on an electronic terminal, such as a middle frame, a face frame, etc., the two ends of the bearing are respectively fixed to the two fixed end beams, the two fixed end beams are parallel to each other, and the two ends of the fixed end beam are fixedly connected to the inner side of the ring frame and the middle part forms a gap with the ring frame, so that the bearing can displace in the direction perpendicular to the fixed end beam, the functional component is fixed to the bearing, and the soft elastic block is fixed between the functional component and the cantilever beam, the soft elastic block can realize the shearing force of the movement of the functional component in the plane and provide support in the thickness direction, so that when the driving unit drives the functional component to vibrate in the direction perpendicular to the fixed end beam in the plane, the vibration feeling is sufficient and the acceleration distribution is uniform, and the vibration intensity in the remaining directions is weak, and the vibration experience is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure schematic diagram of the vibration sensing assembly from the first perspective of the application;

[0017] Figure 2 The overall structure schematic diagram of the vibration sensing assembly from the second perspective of the application;

[0018] Figure 3 The three-dimensional structure schematic diagram of the vibration sensing assembly after partially cutting away;

[0019] Figure 4 The three-dimensional exploded structure schematic diagram of the vibration sensing assembly of the application;

[0020] Figure 5 The acceleration distribution schematic diagram of the vibration sensing assembly in the vibration modal.

DETAILED DESCRIPTION

[0021] The application will be further described below in conjunction with the drawings and embodiments.

[0022] In combination Figures 1-5 , a vibration sensing assembly is provided, which comprises a fixing member 1 for fixing and supporting, a bearing member 2 elastically connected to the fixing member 1, a functional component 3 fixed to the bearing member 2, and a driving unit 4 fixed to the functional component 3. The fixing member 1 comprises an annular frame 11 with a hollow cavity formed inside, at least three spaced apart cantilever beams 12 extending from the inner side of the annular frame 11 towards the hollow cavity, soft elastic blocks 13 fixed between the cantilever beams 12 and the functional component 3, and two fixed end beams 14 symmetrically distributed on opposite sides of the hollow cavity. The two ends of the fixed end beam 14 are fixedly connected to the inner side of the annular frame 11, and the middle part of the fixed end beam 14 forms a gap with the annular frame 11. The two fixed end beams 14 are parallel to each other. The bearing member 2 is accommodated in the hollow cavity and its two ends are respectively fixed to the middle part of the two fixed end beams 14.

[0023] The annular frame 11 can be fixed on an electronic terminal, such as a middle frame, a face frame, etc. The two ends of the bearing member 2 are respectively fixed to the two fixed end beams 14, and the two fixed end beams 14 are parallel to each other. The two ends of the fixed end beam 14 are fixedly connected to the inner side of the annular frame 11, and the middle part of the fixed end beam 14 forms a gap with the annular frame 11. Therefore, the bearing member 2 can displace in a direction perpendicular to the fixed end beam 14. The functional component 3 is fixed to the bearing member 2, and the soft elastic blocks 13 are fixed between the functional component 3 and the cantilever beams 12. The soft elastic blocks 13 can provide support in the thickness direction by realizing the shearing force of the movement of the functional component 3 in the plane. Therefore, when the driving unit 4 drives the functional component 3 to vibrate in the direction perpendicular to the fixed end beam 14 in the plane, sufficient vibration sensing and uniform acceleration distribution are achieved, and the vibration intensity in the remaining directions is weak, thus providing a good vibration sensing experience.

[0024] Further, the fixed end beam 14 comprises two fixed protrusions 141 protruding from the inner side of the annular frame 11 and spaced apart, and a resilient beam 142 connected between the two fixed protrusions 141, and the end of the carrying member 2 is fixed to the side of the resilient beam 142 away from the annular frame 11; the resilient beam 142 protrudes from the plate surface of the annular frame 11 and gradually shrinks in cross-sectional area in the protruding direction, and the end of the carrying member 2 is fixed to the protruding end of the resilient beam 142.

[0025] Specifically, the annular frame 11 is in the shape of a rectangular ring as a whole and is plate-shaped, the hollow cavity is rectangular, the fixed end beam 14 is located inside the wide side of the annular frame 11, the two fixed protrusions 141 are symmetrically arranged, and the two ends of the resilient beam 142 are respectively fixed to the ends of the corresponding two fixed protrusions 141, so that a gap is formed between the resilient beam 142 and the inner side of the annular frame 11, the resilient beam 142 can vibrate in a direction perpendicular to the resilient beam 142 on the plate surface of the annular frame 11, while being inhibited from vibrating in a direction parallel to the resilient beam 142. In addition, the resilient beam 142 protrudes from the plate surface of the annular frame 11, and the protruding side is in the shape of an isosceles trapezoid, the resilient beam 142 is less likely to vibrate in a direction perpendicular to the plate surface of the annular frame 11, and the end of the carrying member 2 is fixed to the protruding end of the resilient beam 142, i.e., the carrying member 2 is located on one side of the annular frame 11 but is not flush with the annular frame 11, and the functional component 3 is fixed to the side of the carrying member 2 away from the annular frame 11, so that a gap is formed between the functional component 3 and the annular frame 11 and the component (the middle frame or the bottom shell of the electronic terminal, etc.) fixed by the annular frame 11, and no interference occurs, and the vibration is more reliable.

[0026] Further, the carrying member 2 comprises a holding portion 21 located in the middle and connecting legs 22 connected to the two opposite sides of the holding portion 21, and the two connecting legs 22 are respectively fixed to the two fixed end beams 14, and the holding portion 21 and the connecting legs 22 are adhesively fixed to one side of the functional component 3. Specifically, the holding portion 21 is located near one long side of the annular frame 11 and in the middle, i.e., the holding portion 21 is offset from the center in the width direction of the annular frame 11 and located in the middle in the length direction, the two connecting legs 22 are respectively fixed to two opposite corners of the holding portion 21, and the connecting legs 22 extend along the inner edge of the annular frame 11, so that a hollow structure is formed between the carrying member 2 and the annular frame 11, which can reduce the weight and save material costs while achieving the carrying effect of the functional component 3, and other components can be arranged at the hollow structure, which is beneficial to improving the space utilization of the electronic terminal.

[0027] Further, the holding part 21 is internally provided with a position giving opening 211, and the driving unit 4 is accommodated in the position giving opening 211; the functional component 3 comprises a touch screen module and / or a PCB module. Specifically, in the embodiment, the functional component 3 comprises a touch screen module and a PCB module fixed as a whole, the PCB module can be integrated with a control circuit, the touch screen module is electrically connected to the PCB module, the driving unit 4 adopts a driving motor, the driving unit 4 is fixed and electrically connected to the PCB module and located in the position giving opening 211, thus, when the touch screen module receives a trigger signal, the PCB module can convert the touch mechanical signal into a corresponding voltage signal, and then the voltage signal is fed back to the driving unit 4 after being amplified by operation, the driving unit 4 performs servo driving on the touch screen module in a certain specific frequency range and peak value according to the built-in force-electricity conversion rule, so that the touch screen realizes the vibration experience demand under the action of the driving unit 4. In some embodiments, the functional component 3 can be adaptively selected, such as a microphone, a light sensor, etc.

[0028] Further, the cantilever beams 12 are located at the short side of the hollow cavity, specifically, four cantilever beams 12 are arranged at the four corner positions of the hollow cavity respectively, wherein the connecting feet 22 can be provided with notches for accommodating the corresponding cantilever beams 12 to realize the position giving. Specifically, the cantilever beams 12 are bent towards one side of the annular frame 11 to protrude from the plate surface of the annular frame 11, the soft elastic blocks 13 are fixed to the end of the protruding side of the cantilever beams 12, the soft elastic blocks 13 are made of silicone or rubber material, and the soft elastic blocks 13 can be fixed to the cantilever beams 12 and the functional component 3 by adhesion, so that the four soft elastic blocks 13 play a role of flexible support for the functional component 3, and the transverse shearing force can be provided by the super-elastic property of the soft elastic blocks 13 to realize the transverse reciprocating motion of the supported functional component 3.

[0029] Further, the annular frame 11 is provided with spaced apart assembly holes 111, and the annular frame 11 can be fixedly connected to the middle frame and the base of the electronic terminal by the screw fastener assembly hole 111, so as to realize the fixed connection of the functional component 3.

[0030] The vibration sensing assembly of the scheme can realize the stiffness requirements in the thickness direction and the longitudinal direction, and can also realize the vibration sensing requirement in the transverse direction of the touch module, and the touch module has a high-quality modal of transverse motion trend, and the vibration sensing is good.

[0031] The above only describes the embodiments of the present application, and it should be noted that those skilled in the art can make improvements without departing from the concept of the present application, but these all belong to the protection scope of the present application.

Claims

1. A vibration sensing assembly comprising a fixed member for fixed support, a load bearing member elastically connected to the fixed member, a functional member fixed to the load bearing member, and a driving unit fixed to the functional member, characterized in that, The fixing member comprises an annular frame with a hollow cavity, at least three spaced apart cantilever beams extending from the inner side of the annular frame towards the hollow cavity, soft elastic blocks fixed between the cantilever beams and the functional components, and two fixed end beams symmetrically distributed on opposite sides of the hollow cavity, the two fixed end beams being parallel to each other, and the bearing member being accommodated in the hollow cavity; the fixed end beam comprises two fixed protrusions protruding from the inner side of the annular frame and spaced apart, and an elastic beam connected between the two fixed protrusions, and the end of the bearing member is fixed to the side of the elastic beam away from the annular frame; the elastic beam protrudes from the plate surface of the annular frame and gradually shrinks in cross-sectional area in the protruding direction, and the end of the bearing member is fixed to the protruding end of the elastic beam; a gap is formed between the elastic beam and the inner side of the annular frame, and the elastic beam vibrates in a direction perpendicular to the elastic beam on the plate surface of the annular frame.

2. The haptic assembly of claim 1, wherein, The bearing member comprises a holding portion located in the middle and connecting feet connected to the opposite sides of the holding portion, and the two connecting feet are respectively fixed to the two fixed end beams.

3. The haptic assembly of claim 2, wherein, The holding portion is located near one long side of the annular frame and in the middle, and the two connecting feet are respectively fixed to two opposite corners of the holding portion, and the connecting feet extend along the inner edge of the annular frame.

4. The haptic assembly of claim 2, wherein, The holding portion is internally provided with a clearance, and the driving unit is accommodated in the clearance.

5. The haptic assembly of claim 1, wherein, The hollow cavity is rectangular, the fixed end beam and the cantilever beam are located on the short side of the hollow cavity, and the cantilever beam is provided with four and is respectively located at the four corner positions of the hollow cavity.

6. The haptic assembly of claim 5, wherein, The cantilever beam is bent towards one side of the annular frame to protrude from the plate surface of the annular frame, the soft elastic block is fixed to the end of the protruding side of the cantilever beam, and the soft elastic block is made of silica gel or rubber material.

7. The haptic assembly of claim 1, wherein, The annular frame is provided with spaced apart assembly holes.

8. The haptic assembly of claim 1, wherein, The functional components comprise a touch screen module and / or a PCB module.

Images