Vibration system, vibration member, and moving body

Abstract

To transmit the vibration of a vibrator with high efficiency.SOLUTION: The vibration system 100 includes the vibration member 110 and the exciter 120 attached to the vibration member 110, the exciter 120 includes the fixing portion 121 that fixes the exciter 120 to the vibration member 110, and the vibration member 110 includes the fixed portion 111 to which the fixing portion 121 is fixed and which is elastically deformable more easily than other portions of the vibration member 110.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a vibration system capable of applying vibration to an operator, a vibration member, and a moving body equipped with the vibration system. [Background technology]

[0002] BACKGROUND ART Conventionally, there exists a technique, as described in Patent Document 1, in which a vibrator is attached to a plate-shaped vibrating member, such as an interior material for an automobile or a building, to make the entire vibrating member function like a speaker. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-318623 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the vibrating member to which the vibrator is attached has functions other than vibrating, and therefore has specific characteristics such as hardness, etc. For this reason, it can be difficult to efficiently transmit the vibrations generated by the vibrator to the vibrating member.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and provides a vibration system capable of transmitting vibration of a vibrator to a vibration member with high efficiency, a vibration member, and a moving body including the vibration system. [Means for solving the problem]

[0006] One vibration system disclosed herein comprises a vibration member and a vibration exciter attached to the vibration member, the vibration exciter having a fixing portion that fixes the vibration exciter to the vibration member, and the vibration member having a fixed portion to which the fixing portion is fixed and which is more easily elastically deformable than other portions of the vibration member.

[0007] A vibrating member according to one aspect of the present disclosure is a vibrating member to which a vibrator is attached, and includes a fixed portion to which the vibrator is fixed and which is elastically deformable more easily than other portions of the vibrating member.

[0008] The moving body of the present disclosure comprises a vibrating member and a vibrator attached to the vibrating member, the vibrator having a fixing portion that fixes the vibrator to the vibrating member, the vibrating member having a fixed portion to which the fixing portion is fixed and that is more easily elastically deformable than other portions of the vibrating member, and a vibration system that vibrates the vibrator based on an input electrical signal to vibrate the vibrating member. [Effects of the Invention]

[0009] According to the present disclosure, vibrations from a vibrator can be efficiently transmitted to a vibrating member regardless of the hardness, shape, etc. of the vibrating member. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 shows a perspective view of a steering member equipped with a vibration system. [Figure 2] FIG. 2 is an exploded perspective view of the vibration system. [Figure 3] FIG. 2 is a cross-sectional view showing the internal structure of a magnetic vibrator. [Figure 4] FIG. 10 is an exploded perspective view showing a first modified example of the vibration system. [Figure 5] FIG. 10 is an exploded perspective view showing a second modification of the vibration system. [Figure 6] 1 shows a moving body equipped with a vibration system; DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of a vibration system, a vibration member, and a moving body according to the present disclosure will be described with reference to the drawings. Note that the following embodiments are presented as examples to explain the present disclosure and are not intended to limit the present disclosure. For example, the shapes, structures, materials, components, relative positional relationships, connection states, numerical values, mathematical formulas, the content of each step in a method, and the order of each step shown in the following embodiments are examples and may include content not described below. Furthermore, while geometric expressions such as "parallel" and "orthogonal" may be used, these expressions do not indicate mathematical precision and include substantially acceptable errors, deviations, and the like. Furthermore, expressions such as "simultaneous" and "identical" also include substantially acceptable ranges.

[0012] The drawings are schematic diagrams in which emphasis, omission, or adjustment of proportions is appropriately made to explain the present disclosure, and differ from the actual shapes, positional relationships, and proportions. The X-axis, Y-axis, and Z-axis shown in the drawings represent Cartesian coordinates arbitrarily set for the purpose of illustrating the drawings. In other words, the Z-axis is not necessarily an axis along the vertical direction, and the X-axis and Y-axis are not necessarily located within a horizontal plane.

[0013] In addition, multiple inventions may be collectively described below as one embodiment, and some of the content described below may be described as optional components related to the present disclosure.

[0014] FIG. 1 is a perspective view showing a control member 210 equipped with a vibration system 100. The control member 210 is a member for controlling a mobile object 200 (see FIG. 6), which includes automobiles, buses, trucks, airplanes, ships, trains, construction machinery, agricultural machinery, and the like. The control member 210 is a member operated by a driver, and is equipped with a reception unit 211. The reception unit 211 receives input from the driver regarding the operation of the mobile object 200, navigation, audio, and the like. The vibration system 100 is disposed behind the reception unit 211 (X+ side in the figure), and generates vibrations when the reception unit 211 receives input from the driver. Note that the vibrations may be at a frequency that the driver can hear as sound.

[0015] 2 is an exploded perspective view of the vibration system 100. The vibration system 100 is a system that generates vibrations (including sound) based on an input electrical signal, and includes a vibrating member 110 and a vibrator 120.

[0016] The vibrator 120 has a fixing part 121 that fixes the vibrator 120 to the vibrating member 110. The vibrator 120 vibrates the vibrating member 110 via the fixing part 121 based on an input electric signal. The vibrator 120 is a so-called actuator (exciter) that vibrates the vibrating member 110. The type of the vibrator 120 is not limited, and examples include one that uses a magnet and a coil, one that uses a piezoelectric element, and one that uses a magnetostrictive element. In the case of this embodiment, the vibrator 120 is a magnetic actuator that includes a magnetic circuit 122, a frame 128, and a suspension 150. FIG. 3 is a cross-sectional view showing the internal structure of the magnetic vibrator 120.

[0017] Magnetic circuit 122 includes cylindrical magnet 123, which is a magnetized permanent magnet, disk-shaped top plate 124 attached to one end face of magnet 123 so that the periphery protrudes, and cylindrical bottom plate 125 with a bottom attached to the end face of top plate 124 opposite magnet 123. Bottom plate 125 accommodates magnet 123 and top plate 124 coaxially, and an annular magnetic gap 126 is formed between top plate 124 and bottom plate 125. A coil 127 is arranged in magnetic gap 126.

[0018] The frame 128 is a structural member that holds the magnetic circuit 122 and the coil 127. The shape of the frame 128 is not particularly limited, but in this embodiment, it is cylindrical with a bottom when viewed from the overall perspective. The outer periphery of the bottom plate 125 of the magnetic circuit 122 is located in a position surrounded by the edge of the open end of the frame 128. The frame 128 and the bottom plate 125 are bonded together via an annular suspension 150 so that they are arranged coaxially.

[0019] An electric signal indicating vibration (sound) is input to coil 127. A force corresponding to the electric signal is generated in the direction of the winding axis of coil 127 due to the interaction between the magnetic force generated in coil 127 and the magnetic force present in magnetic gap 126. In the present embodiment, coil 127 is wound around the outer periphery of cylindrical bobbin 129, and is attached to the center of frame 128 via bobbin 129.

[0020] With the above configuration, the vibrator 120 generates vibration by relatively reciprocating the magnetic circuit 122 and the frame 128 in the direction of the winding axis of the coil 127 based on the force generated in the coil 127. The vibrator 120 can impart vibration to the vibrating member 110 joined to the frame 128 in response to an electric signal.

[0021] The structure of the vibrator 120 has been described as including the magnetic circuit 122 of an internal magnet type, but the structure is not limited to this, and the magnetic circuit 122 included in the vibrator 120 may be an external magnet type.

[0022] The fixing parts 121 are parts for attaching the vibrator 120 to the vibration member 110. The fixing parts 121 are provided so as to protrude from a frame 128 of the vibrator 120. In the present embodiment, the vibrator 120 has a plurality of fixing parts 121 arranged along a radial line centered on the winding axis of the coil 127. There are no particular limitations on the method for joining the vibrator 120 and the vibration member 110, but in the present embodiment, the fixing parts 121 and the vibration member 110 are fixed by fastening members 151 (see FIG. 2).

[0023] The vibrating member 110 is a member that receives the vibrations generated by the vibrator 120 and vibrates as a whole. The vibrating member 110 may have only a vibrating function, but may also have other functions. For example, as described above, the vibrating member 110 may be disposed behind the reception unit 211 and may also have the function of supporting the reception unit 211 and the function of holding the wiring to the reception unit 211.

[0024] The material and shape of the vibrating member 110 are not limited, but the material that makes up the vibrating member 110 is light and hard so that vibrations can be effectively applied to the outside. For example, hard aluminum is preferable to soft aluminum as the material that makes up the vibrating member 110. However, the material that makes up the vibrating member 110 may also be other metals, alloys, resins, etc.

[0025] The vibrating member 110 is provided with a fixed portion 111 to which a fixing portion 121 is fixed and which is elastically deformable more easily than other portions of the vibrating member 110. The shape of the fixed portion 111 is not limited, but it is preferable that the fixed portion 111 has a shape that resonates with the single resonance frequency of the vibrator 120 to which it is attached. In the present embodiment, the fixed portion 111 is surrounded on three sides by slits 112 that penetrate the vibrating member 110 in the thickness direction (X-axis direction in the figure), and has a rectangular tongue shape. By designing in advance the size of the portion of the fixed portion 111 where it is connected to other portions of the vibrating member 110 and the overall size of the fixed portion 111, it is possible to provide the vibrating member 110 with a fixed portion 111 that has a natural resonance frequency that corresponds to the frequency generated by the vibrator 120.

[0026] It should be noted that the present disclosure is not limited to the above-described embodiments. For example, the present disclosure may be embodied in another embodiment realized by any combination of the components described in this specification or by excluding some of the components. Furthermore, the present disclosure also includes modifications obtained by applying various modifications to the above-described embodiments that would occur to a person skilled in the art without departing from the spirit of the present disclosure, i.e., the meaning of the wording of the claims.

[0027] For example, as shown in FIG. 4, the fixed portion 111 may be a portion that is thinner than the other portions of the vibrating member 110.

[0028] As shown in FIG. 5, the vibrating member 110 may be provided with a groove 113 on the periphery of the fixed portion 111 to facilitate elastic deformation of the fixed portion 111.

[0029] Furthermore, the slit 112 or groove 113 provided on the periphery of the fixed portion 111 is not limited to surrounding the fixed portion 111 on three sides, but may also surround the fixed portion 111 on two sides.

[0030] Furthermore, the slit 112 or groove 113 provided on the periphery of the fixed portion 111 may be curved.

[0031] Furthermore, the vibration system 100 may be provided not only in the control member 210 but also in other parts of the vehicle 200 such as the dash panel 220 .

[0032] (summary) The vibration system 100 of the first embodiment comprises a vibration member 110 and a vibration exciter 120 attached to the vibration member 110, the vibration exciter 120 having a fixing portion 121 that fixes the vibration exciter 120 to the vibration member 110, and the vibration member 110 having a fixed portion 111 to which the fixing portion 121 is fixed and which is more easily elastically deformable than other portions of the vibration member 110.

[0033] According to the first aspect, the vibration member 110 is made light and hard so that the vibration is efficiently exerted on the outside, and the vibration of the vibrator 120 can be efficiently transmitted to the entire vibration member 110 via the elastically deformable fixed portion 111.

[0034] The vibration system 100 of the second embodiment includes the vibration system 100 of the first embodiment, and the fixed portion 111 is thinner than the other portions of the vibration member 110.

[0035] According to the second aspect, it is possible to form the fixed portion 111 that is more elastically deformable than the other portions of the vibrating member 110. Furthermore, it is possible to make the fixed portion 111 invisible from one side of the vibrating member 110.

[0036] The vibration system 100 of the third embodiment includes the first embodiment or the second embodiment, and the vibration member 110 has a groove 113 or a slit 112 on the periphery of the fixed portion 111 to facilitate elastic deformation of the fixed portion 111.

[0037] According to the third aspect, it is possible to form the fixed portion 111 that is more elastically deformable than other portions of the vibrating member 110. Furthermore, when the groove 113 is employed, it is possible to make the fixed portion 111 invisible from one side of the vibrating member 110. When the slit 112 is employed, it is possible to easily form the fixed portion 111 on the vibrating member 110.

[0038] The vibration system 100 of the fourth embodiment includes the vibration system of the third embodiment, and the groove 113 or the slit 112 is arranged so as to surround the fixed portion 111 on three sides.

[0039] According to the fourth aspect, the fixed portion 111 that is elastically deformed more easily than other portions can be easily formed on the vibrating member 110.

[0040] The vibration system 100 of the fifth aspect includes any one of the first to fourth aspects, and the fixed portion 111 has a natural resonance frequency corresponding to the frequency generated by the vibrator 120.

[0041] According to the fifth aspect, the vibration of the vibrator 120 can be transmitted to the vibrating member 110 via the fixed portion 111 with high efficiency.

[0042] The vibrating member 110 of the sixth aspect is a vibrating member 110 to which a vibrator 120 is attached, and includes a fixed portion 111 to which the vibrator 120 is fixed and which is more easily elastically deformable than other portions of the vibrating member 110.

[0043] According to the sixth aspect, the vibration member 110 is made light and hard so that the vibration is efficiently exerted on the outside, and the vibration of the vibrator 120 can be efficiently transmitted to the entire vibration member 110 via the elastically deformable fixed portion 111.

[0044] The seventh aspect of the moving body 200 comprises a vibrating member 110 and a vibration exciter 120 attached to the vibrating member 110, the vibration exciter 120 having a fixing portion 121 for fixing the vibration exciter 120 to the vibrating member 110, the vibration member 110 having a fixed portion 111 to which the fixing portion 121 is fixed and which is more easily elastically deformable than other portions of the vibrating member 110, and a vibration system 100 that vibrates the vibration exciter 120 based on an input electrical signal, thereby vibrating the vibrating member 110. [Industrial Applicability]

[0045] The present disclosure can be used in vibration systems that are attached to home appliances, information devices, housing equipment, mobile objects, and the like. [Explanation of symbols]

[0046] 100 Vibration System 110 Vibration member 111 Fixed part 112 Slit 113 Groove 120 Shaker 121 Fixed part 122 Magnetic Circuit 123 Magnet 124 Top Plate 125 bottom plate 126 Magnetic Gap 127 Coil 128 frames 129 Bobbin 150 Suspension 151 Fastening members 200 Mobile 210 Control member 211 Reception 220 Dash Panel

Claims

1. A vibrating member; a vibrator attached to the vibrating member, The vibrator is a fixing portion that fixes the vibrator to the vibration member, The vibration member is The fixing portion is fixed to a fixed portion that is more easily elastically deformable than other portions of the vibrating member. Vibration system.

2. The fixed portion is The thickness is thinner than the other parts of the vibrating member. The vibration system of claim 1 .

3. The vibration member is A groove or slit is provided on the periphery of the fixed portion to facilitate elastic deformation of the fixed portion. The vibration system of claim 1 .

4. The groove or the slit is The fixed portion is disposed so as to surround the fixed portion on three sides. The vibration system of claim 3 .

5. The fixed portion has a natural resonance frequency corresponding to the frequency generated by the vibrator. The vibration system of claim 1 .

6. A vibrating member to which a vibrator is attached, The vibrator is fixed to a fixed portion that is more easily elastically deformable than other portions of the vibrating member. Vibrating member.

7. a vibrating member; a vibrator attached to the vibrating member, The vibrator is a fixing portion that fixes the vibrator to the vibration member, The vibration member is a fixed portion to which the fixing portion is fixed and which is elastically deformable more easily than other portions of the vibrating member; A vibration system is provided that vibrates the vibrator based on an input electrical signal to vibrate the vibration member. Mobile object.

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