Haptic feedback device

Abstract

Provided in the present invention is a haptic feedback device. The haptic feedback device comprises a suspension assembly and a fixed assembly for supporting the suspension assembly, wherein the suspension assembly comprises a shell, linear shafts fixed below the shell, and a vibration motor; the fixed assembly comprises a base enclosing an accommodating space, and bearing members fixed in the accommodating space; the shell is spaced apart from the base; the linear shafts pass through the bearing members and extend beyond the bearing members; and the vibration motor drives the suspension assembly to reciprocate in the axial direction of the linear shafts and relative to the fixed assembly. The suspension assembly in the haptic feedback device of the present invention can only retain the vibration degree of freedom in a single direction; moreover, the vibration sensation distribution is more uniform, and the vibration sensation transmitted to the fixed assembly is small, so that the vibration sensation is more concentrated on the suspension assembly; and when the suspension assembly is subjected to external pressure, the impact on the vibration sensation intensity is low.

Description

Haptic feedback device TECHNICAL FIELD

[0001] The present application relates to the technical field of vibrotactile, in particular to a haptic feedback device. BACKGROUND

[0002] In the field of vibrotactile, in order to embody good local vibration sensation of a product, the vibration device must be installed on a reasonably designed suspension structure. The traditional suspension structure connects the suspension assembly and the non-suspension assembly by using metal springs or flexible materials. The traditional suspension structure cannot retain only a single degree of freedom, whether it is a spring or a flexible material, thereby affecting the uniformity of the vibration sensation distribution of the suspension assembly, and the suspension assembly transmits a large vibration sensation to the non-suspension assembly. When the suspension assembly is subjected to external pressure, the resonance frequency of the suspension assembly is also greatly affected, the practicability is greatly discounted, and the application in different scenes is greatly limited. TECHNICAL PROBLEM

[0003] Therefore, it is necessary to provide a new haptic feedback device to solve the above technical problems. TECHNICAL SOLUTION

[0004] The purpose of the present application is to provide a haptic feedback device, which has concentrated vibration sensation area and diversified vibration sensation.

[0005] In order to achieve the above purpose, the technical scheme of the present application is as follows: a haptic feedback device, comprising a suspension assembly and a fixed assembly supporting the suspension assembly, the suspension assembly comprising a shell, a linear shaft fixed below the shell, and a vibration motor, the fixed assembly comprising a base surrounding a receiving space and a bearing piece fixed in the receiving space, the shell and the base being spaced apart, the linear shaft being arranged in the bearing piece and extending beyond the bearing piece, the vibration motor driving the suspension assembly to reciprocate relative to the fixed assembly along the axial direction of the linear shaft.

[0006] Preferably, the linear shaft is made of a metal material, and / or the bearing piece is made of a metal material.

[0007] Preferably, the shell comprises a plate-shaped main body portion and a protruding portion extending into the receiving space from the main body portion, and the linear shaft is fixed to the protruding portion.

[0008] Preferably, the protruding portion is provided with a through hole, and the linear shaft is arranged in the through hole and is tightly connected with the protruding portion.

[0009] Preferably, the main body portion and the protruding portion are integrally formed.

[0010] Preferably, two protrusions are arranged corresponding to one linear shaft, and the linear shaft is arranged through the through holes of the two protrusions.

[0011] Preferably, one outer end surface of the linear shaft extends beyond one protrusion, and the other outer end surface of the linear shaft extends beyond the other protrusion.

[0012] Preferably, the base comprises a bottom wall and a side wall bent and extended from the bottom wall to enclose the accommodation space with the bottom wall, the bottom wall is provided with a boss extending into the accommodation space, and the bearing member is arranged and fixed on the boss.

[0013] Preferably, the boss surface is provided with an arc-shaped groove, and the shape of the groove matches the shape of the bearing member surface.

[0014] Preferably, two bosses are arranged corresponding to one bearing member, and the bearing member is arranged on the two bosses. Beneficial effects

[0015] Compared with the related art, the haptic feedback device provided by the application comprises a floating assembly and a fixed assembly supporting the floating assembly, the floating assembly comprises a shell, a linear shaft fixed below the shell, and a vibration motor, the fixed assembly comprises a base enclosing an accommodation space, and a bearing member fixed in the accommodation space, the shell and the base are arranged at intervals, the linear shaft is arranged through the bearing member and extends beyond the bearing member, and the vibration motor drives the floating assembly to reciprocate relative to the fixed assembly along the axial direction of the linear shaft. The haptic feedback device of the application uses a linear shaft and a bearing member to fix the floating assembly, so that the floating assembly only retains a single degree of freedom, the vibration feeling is more uniform, the vibration feeling transmitted from the floating assembly to the fixed assembly is small, the vibration feeling is more concentrated on the floating assembly, in addition, when the floating assembly is subjected to external pressure, the influence on the vibration feeling intensity is small. Therefore, the application retains the functions of the traditional floating structure, and also improves the shortcomings of the traditional floating structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a schematic view of the three-dimensional structure of the haptic feedback device of the application;

[0017] Fig. 2 is a partially exploded view of the haptic feedback device shown in Fig. 1;

[0018] Fig. 3 is a partially exploded view of the haptic feedback device shown in Fig. 1 from another angle;

[0019] Fig. 4 is an exploded view of the haptic feedback device shown in Fig. 1;

[0020] Fig. 5 is a sectional view along line A-A in Fig. 1. Best mode for carrying out the invention

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to FIGS. 1-5, the present application provides a haptic feedback device 100, the haptic feedback device 100 includes a floating assembly 101 and a fixed assembly 102 supporting the floating assembly 101. The floating assembly 101 includes a housing 1, a linear shaft 2 fixed below the housing 1, and a vibration motor 3. The fixed assembly 102 includes a base 4 surrounding a receiving space 40 and a bearing 5 fixed in the receiving space 40. The floating assembly 101 can reciprocate relative to the fixed assembly 102 along the axial direction of the linear shaft 2 to provide a vibration feeling.

[0023] The housing 1 includes a plate-shaped main body 11 and a protruding portion 12 extending into the receiving space 40 from the main body 11, the main body 11 and the protruding portion 12 are integrally formed, in other embodiments, the main body 11 and the protruding portion 12 can also be fixed in other ways, for example: adhesive. The number of protruding portions 12 is two pairs, the main body 11 is provided with one pair of protruding portions 12 along the vibration direction of the floating assembly 101, that is, one linear shaft 2 is provided with two protruding portions 12, and one linear shaft 2 is arranged in two protruding portions 12. The linear shaft 2 is fixed to the protruding portion 12, specifically, each protruding portion 12 is provided with a through hole 120 penetrating through it, the linear shaft 2 is arranged in the through hole 120 and is tightly connected with the protruding portion 12, so that the linear shaft 2 can drive the housing 1 to slide together.

[0024] One outer end face of the linear shaft 2 does not extend beyond one of the protruding portions 12, and the other outer end face of the linear shaft 2 does not extend beyond the other protruding portion 12. The outer end face of the linear shaft 2 and the base 4 are spaced apart to provide sufficient space for the floating assembly 101 to have sufficient amplitude. The linear shaft 2 is made of metal material, in this embodiment, the number of linear shafts 2 is two, and the shape of the linear shaft 2 is cylindrical, in other embodiments, the number of linear shafts 2 can be set according to requirements, and the shape of the linear shaft 2 can also be rectangular column.

[0025] The vibration motor 3 is arranged at the middle position of the main body part 11 of the shell 1 to better drive the suspension assembly 101 to reciprocate along the axial direction of the linear shaft 2.

[0026] The base 4 is arranged apart from the shell 1, and the base 4 comprises a bottom wall 41 and a side wall 42 which is bent and extended from the bottom wall 41 and surrounds the bottom wall 41 to form the accommodation space 40. The bottom wall 41 is provided with a boss 43 which extends into the accommodation space 40. The bearing part 5 is fixed on the boss 43, and the boss 43 is provided with an arc-shaped groove 430 which matches the shape of the surface of the bearing part 5. The number of the bosses 43 is two pairs, and the bottom wall 41 is provided with one pair of bosses 43 along the vibration direction of the suspension assembly 101, that is, two bosses 43 are arranged for one bearing part 5, and one bearing part 5 is carried on two bosses 43.

[0027] The bearing part 5 is made of metal material, and the linear shaft 2 is arranged in the bearing part 5 and extends beyond the bearing part 5. Preferably, the bearing part 5 and the linear shaft 2 are both made of metal material, so that the friction between the linear shaft 2 and the bearing part 5 is very small, the vibration feeling of the suspension assembly 101 is also small, and when external pressure acts on the shell 1, the friction is also small, and the vibration feeling intensity of the shell 1 changes little.

[0028] The cooperation of the bearing part 5 and the linear shaft 2 makes the movement of the suspension assembly 101 relative to the fixed assembly 102 have only one degree of freedom in the axial direction of the linear shaft 2. When the suspension assembly 101 vibrates, the suspension assembly 101 can only vibrate in the axial direction of the linear shaft 2, and there is no other direction of vibration, so that the vibration feeling of the shell 1 is uniformly distributed. Since the friction coefficient between the bearing part 5 and the linear shaft 2 after assembly is very small, the vibration feeling of the shell 1 is difficult to transmit to the base 4, so that the vibration feeling is concentrated on the suspension assembly 101, and the effect of tactile feedback is good.

[0029] Compared with the related art, the haptic feedback device provided by the application comprises a floating assembly and a fixing assembly supporting the floating assembly, the floating assembly comprises a shell, a linear shaft fixed below the shell and a vibration motor, the fixing assembly comprises a base surrounding a receiving space and a bearing piece fixed in the receiving space, the shell is arranged in a spaced manner with the base, the linear shaft is arranged in the bearing piece and extends beyond the bearing piece, and the vibration motor drives the floating assembly to reciprocate along the axial direction of the linear shaft relative to the fixing assembly.

[0030] The above only describes the implementation manner of the application, and it should be noted that, for those skilled in the art, improvements can be made without departing from the creative concept of the application, but these all belong to the protection scope of the application.

Claims

1. A haptic feedback device, characterized in that, The tactile feedback device includes a suspension component and a fixing component supporting the suspension component. The suspension component includes a housing, a linear shaft fixed below the housing, and a vibration motor. The fixing component includes a base forming a receiving space and a bearing component fixed within the receiving space. The housing and the base are spaced apart. The linear shaft passes through the bearing component and extends beyond it. The vibration motor drives the suspension component to reciprocate relative to the fixing component along the axial direction of the linear shaft.

2. The haptic feedback device according to claim 1, characterized in that: The linear shaft is made of a metallic material, and / or the bearing component is made of a metallic material.

3. The haptic feedback device according to claim 2, characterized in that: The housing includes a plate-shaped main body and a protrusion extending from the main body into the receiving space, and the linear shaft is fixed to the protrusion.

4. The haptic feedback device according to claim 3, characterized in that: The protrusion has a through hole, and the linear shaft passes through the through hole and is fastened to the protrusion.

5. The haptic feedback device according to claim 3, characterized in that: The main body and the protrusion are integrally formed.

6. The haptic feedback device according to claim 4, characterized in that: Each linear shaft is provided with two protrusions, and the linear shaft passes through the holes of the two protrusions.

7. The haptic feedback device according to claim 6, characterized in that: One outer end face of the linear shaft extends no beyond one of the protrusions, and the other outer end face of the linear shaft extends no beyond the other protrusion.

8. The haptic feedback device according to claim 1, characterized in that: The base includes a bottom wall and a side wall that bends and extends from the bottom wall and surrounds the receiving space. The bottom wall has a boss that extends into the receiving space, and the bearing is mounted and fixed to the boss.

9. The haptic feedback device according to claim 8, characterized in that: The surface of the boss is provided with an arc-shaped groove, the shape of which matches the shape of the bearing component surface.

10. The haptic feedback device according to claim 8, characterized in that: Each bearing component is provided with two bosses, and each bearing component is supported on the two bosses.

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