CN111641313B - Vibration device and electronic apparatus - Google Patents
Vibration device and electronic apparatus Download PDFInfo
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- CN111641313B CN111641313B CN202010617470.8A CN202010617470A CN111641313B CN 111641313 B CN111641313 B CN 111641313B CN 202010617470 A CN202010617470 A CN 202010617470A CN 111641313 B CN111641313 B CN 111641313B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
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Abstract
The invention discloses a vibration device and an electronic device, the vibration device comprises a shell, a magnetic circuit component, a coil component and an elastic supporting piece, wherein at least part of a magnet of the magnetic circuit component or the coil component is arranged as a vibration piece, the elastic supporting piece is connected with the shell and the vibration piece, the magnetizing direction of the magnet of the magnetic circuit component is obliquely arranged with the first direction so as to have components in the first direction and the second direction, the coil is provided with a lead section extending along a third direction, at least the lead section of the coil is arranged in a magnetic gap, and the third direction is orthogonal to the first direction and the second direction, so that when alternating current is supplied to the coil, a vibrator vibrates in the first direction and the second direction, the resonance frequency of the vibrator in the first direction is f1, the resonance frequency of the vibrator in the second direction is f2, and the f1 is different from the f2, so as to realize the vibration of different resonance frequencies in the two directions.
Description
Technical Field
The present invention relates to the field of vibration devices, and in particular, to a vibration device and an electronic apparatus.
Background
Electronic devices such as portable information terminals and game machines use a vibration device that generates vibrations such as vibrations for notification of an incoming call in a portable information terminal and vibrations for tactile feedback in a game machine. In the prior art, the vibration device generally only comprises one resonant frequency, if the vibration device is required to work under two different resonant frequency states, two vibration devices are required to be arranged, and the miniaturization development requirement of the vibration device is not facilitated.
Disclosure of Invention
The invention mainly aims to provide a vibrating device and electronic equipment, and aims to realize vibration in two directions through one vibrating device, wherein the resonant frequencies of the vibrating device are different, so that the problem that a plurality of vibrating devices are correspondingly needed when vibration in two directions is needed in the prior art is solved.
In order to achieve the above object, the present invention provides a vibration device, including:
a housing;
the magnetic circuit component and the coil component are arranged on the shell, a magnet of the magnetic circuit component limits a magnetic gap arranged along a first direction in the width direction, the coil component comprises a coil, and at least part of the magnet of the magnetic circuit component or the coil component is arranged as a vibrating piece; and (c) a second step of,
the elastic supporting piece is connected with the shell and the vibrating piece, forms a vibrator together with the vibrating piece, and can elastically deform in a first direction and a second direction which are orthogonal;
wherein a magnetizing direction of a magnet of the magnetic circuit assembly is disposed obliquely to the first direction to have components in both the first direction and the second direction, the coil has a wire section extending in a third direction, at least the wire section of the coil is disposed in the magnetic gap, and the third direction is disposed orthogonally to the first direction and the second direction so that the vibrator vibrates in the first direction and the second direction when the coil is energized with an alternating current;
the resonant frequency of the vibrator in the first direction is f1, the resonant frequency of the vibrator in the second direction is f2, and f1 is different from f 2.
Optionally, f1 is in a multiple relationship with f 2.
Alternatively, 1.1 ≦ f1/f2 ≦ 2.5.
Optionally, f1/f2=2.
Optionally, the mass of the oscillator is m, and m is less than or equal to 3g.
Alternatively, m.ltoreq.2.8 g.
Optionally, the orientation of the magnets of the magnetic circuit assembly is adjustably set.
Optionally, a washer is arranged on the side of the magnet of the magnetic circuit assembly, which faces away from the magnetic gap.
The present invention also provides an electronic apparatus including a vibration device, the vibration device including:
a housing;
a magnetic circuit assembly and a coil assembly, both mounted to the housing, a magnet of the magnetic circuit assembly defining a magnetic gap arranged in a first direction in a width direction, the coil assembly including a coil, at least a part of the magnet of the magnetic circuit assembly or the coil assembly being provided as a vibrating member; and the number of the first and second groups,
the elastic supporting piece is connected with the shell and the vibrating piece, forms a vibrator together with the vibrating piece, and can elastically move in a first direction and a second direction which are orthogonal;
wherein a magnetizing direction of a magnet of the magnetic circuit assembly is disposed obliquely to the first direction to have components in both the first direction and the second direction, the coil has a wire section extending in a third direction, at least the wire section of the coil is disposed in the magnetic gap, and the third direction is disposed orthogonally to the first direction and the second direction so that the vibrator vibrates in the first direction and the second direction when the coil is energized with an alternating current;
the resonance frequency of the vibrator in the first direction is f1, the resonance frequency of the vibrator in the second direction is f2, and the f1 and the f2 are different.
Optionally, the electronic device includes a game operating apparatus or a mobile terminal device.
In the technical solution of the present invention, the magnetizing direction of the magnet of the magnetic circuit assembly is inclined to the first direction so as to have components in both the first direction and the second direction, the coil has a wire section extending in a third direction, at least the wire section of the coil is disposed in the magnetic gap, and the third direction is orthogonal to the first direction and the second direction, so that when the coil is supplied with an alternating current, the vibrator vibrates in the first direction and the second direction, so that the vibrating device can realize vibration in both directions, and the resonance frequencies of vibration in both directions are not equal, so as to solve the defect caused by the need of two vibrating devices to realize vibration in both directions in the prior art.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a vibration device according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of FIG. 1 (with washer not shown);
FIG. 3 is a schematic cross-sectional view of FIG. 1;
FIG. 4 is another cross-sectional view of FIG. 1, with FIG. 4 taken at a different location than FIG. 3;
FIG. 5 is a schematic diagram of the vibration device provided in FIG. 1 with an arrow indicating the direction of magnetization;
fig. 6 is a schematic cross-sectional view of a magnetic circuit assembly and a coil assembly of the vibration device provided in fig. 1, wherein a magnet of the magnetic circuit assembly has a halbach array structure;
FIG. 7 is a perspective view of one embodiment of the elastic support member of FIG. 1;
FIG. 8 is a schematic view of the arrangement of the elastic supporting members in FIG. 1;
FIG. 9 is a perspective view of another embodiment of the resilient support of FIG. 1;
FIG. 10 is a schematic perspective view of another embodiment of the elastic support member shown in FIG. 1;
fig. 11 is a schematic cross-sectional view of another embodiment of the vibration device provided in the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, 8230; \8230;) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the figure), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The electronic device may be, but is not limited to, a remote control operation device (e.g., a game pad), a mobile terminal (e.g., a mobile phone, a smart phone, a bracelet, a smart watch, and a wearable device), and the like, and generally, the device carries a vibration device, and information is transmitted to a user by vibration of the vibration device, and vibration generated by the vibration device is used for, for example, feedback for operation by the user, vibration for incoming call notification in a portable information terminal, vibration for tactile feedback in a game machine, and the like.
In the prior art, in order to obtain a plurality of vibration feelings, for example, a game pad, a plurality of vibration devices are correspondingly arranged, so that the structure of the electronic equipment is complicated, and the occupied space is large because the plurality of vibration devices need to be arranged inside the electronic equipment.
In view of the above-mentioned drawbacks, the present invention provides a vibration device that can realize vibration in at least two directions. Fig. 1 to 10 illustrate an embodiment of a vibration device provided in the present invention, wherein fig. 11 illustrates another embodiment of the vibration device provided in the present invention.
It should be noted that the subsequent first direction, second direction and third direction are three orthogonal directions, for example, if the first direction is the up-down direction, the second direction and the third direction may correspond to the left-right direction and the front-back direction.
Referring to fig. 1 to 3, the vibration device 100 includes a housing 1, a magnetic circuit assembly 2, a coil assembly 3, and an elastic support 4, the magnetic circuit assembly 2 and the coil assembly 3 are both mounted to the housing 1, a magnet 21 of the magnetic circuit assembly 2 defines a magnetic gap 20 arranged in a width direction along a first direction, the coil assembly 3 includes a coil 31, at least a part of the magnet 21 of the magnetic circuit assembly 2 or the coil assembly 3 is provided as a vibrator, the elastic support 4 is connected to the housing 1 and the vibrator to be provided to constitute a vibrator together with the vibrator and to be elastically deformable in orthogonal first and second directions, wherein a magnetization direction of the magnet 21 of the magnetic circuit assembly 2 is obliquely provided to the first direction (see further fig. 5 and 6) to have components in both the first and second directions, the coil 31 has a wire segment extending in a third direction, at least the wire segment of the coil 31 is provided in the magnetic gap 20, and the third direction is provided to be orthogonal to the first and second directions to allow the vibrator to pass through an alternating current in the second direction when the vibrator and the second direction.
Fig. 11 is mainly different from fig. 1 to 10 in that the magnet 21 of the magnetic circuit assembly is provided as an oscillating member in the embodiment provided in fig. 1 to 10, and the coil assembly 3 is provided as an oscillating member in the embodiment provided in fig. 11.
When the coil 31 is energized with an alternating current, the portion of the coil 31 located in the magnetic gap 20 will generate an ampere force, which can be determined according to the left-hand rule: the left hand is stretched, so that the thumb is perpendicular to the other four fingers and in the same plane, magnetic induction lines flow in from the palm of the hand, the four fingers point to the current direction, and the thumb points to the ampere force direction (namely the conductor stress direction). It follows that the force applied to the coil 31 in the magnetic field is applied, and accordingly, the magnet 21 of the magnetic circuit assembly 2 is applied with a reaction force, because the magnetizing direction of the magnet 21 of the magnetic circuit assembly 2 is inclined to the first direction and has components in both the first direction and the second direction, so that the force and the reaction force have components in both the first direction and the second direction, for this reason, the coil assembly 3 or at least a part of the magnet 21 of the magnetic circuit assembly 2 may be elastically mounted by the elastic support member 4 to be provided as a vibrating member, and when the coil assembly 3 is provided as a vibrating member, the coil assembly vibrates in both the first direction and the second direction under the action force, and likewise, when at least a part of the magnet 21 of the magnetic circuit assembly 2 is provided as a vibrating member, the at least a part of the magnet 21 vibrates in both the first direction and the second direction under the reaction force, so that the vibrating device 100 can realize vibrations in both directions, thereby solving the defects caused by the need of using two vibrating devices 100 in the prior art to realize vibrations in both directions.
The main function of the housing 1 is to provide the installation of the magnetic circuit assembly 2, the coil assembly 3 and the elastic support 4, which includes a fixed installation or an elastic movable installation, and for this reason, the specific structure or configuration of the housing 1 is not limited, for example, the housing 1 may be an integral piece, a separate piece, a frame, or other structures, in this embodiment, the housing 1 is the housing 1 formed with an inner cavity, the magnetic circuit assembly 2, the coil assembly 3 and the elastic support 4 are all accommodated in the housing 1, the shape of the housing 1 is not limited, and may be square, circular, irregular, and the like, and specifically, in this embodiment, the housing 1 is square. The specific composition of the housing 1 is not limited, and in this embodiment, the housing 1 includes a box body 11 with two open ends, and two cover plates 12 covering two ports of the box body 11, so as to facilitate the installation of the magnetic circuit assembly 2, the coil assembly 3, and the elastic supporting member 4 from the two ports of the box body 11, and obviously, the design is not limited thereto.
In the technical solution of the present invention, because at least a portion of the magnet 21 of the coil component 3 or the magnetic circuit component 2 is configured as a vibrating member, in order to avoid an influence of the housing 1 on the vibrating member, the housing 1 is selected from a non-magnetic material, such as a non-metal, or a metal, such as aluminum, copper, and the like, so that there is no magnetic force (including an adsorption force or a magnetic force) between the vibrating member and the housing 1, and an interference of a force in a non-vibrating direction on the vibrating direction can be reduced.
The magnetizing direction of the magnet 21 of the magnetic circuit assembly 2 is set to be inclined with respect to the first direction, which is a common technique and will not be described in detail herein, in the embodiment of the present invention, the magnetizing direction is set to achieve the effect of making the direction of the magnetic field in the magnetic gap 20 be an inclined direction, and the magnetizing direction is not limited by the specific structure of the magnet 21 of the magnetic circuit assembly 2, so in the embodiment of the present invention, the magnet 21 of the magnetic circuit assembly 2 can be arranged normally, for example, along the direction parallel to the first direction, and thus, the magnet 21 of the magnetic circuit assembly 2 and the coil assembly 3 can be set to be parallel without being limited by the magnetic field.
With further reference to fig. 5 and 6, an inclination angle exists between the magnetizing direction and the first direction, the inclination angle is set to be a, theoretically, larger than 0 ° and smaller than 90 °, and generally 5 ° ≦ α ≦ 85 ° for practical design requirements, and the specific magnitude of the angle depends on the magnitude of the magnetic field component for the first direction and the second direction, and more specifically depends on the magnitude of the aforementioned acting force in the first direction and the second direction.
In other embodiments of the present invention, the orientation of the magnet 21 of the magnetic circuit assembly 2 is adjustable, so that the direction of the magnetic field in the magnetic gap 20 can be adjusted by adjusting the orientation of the magnet 21, specifically, the orientation of the end of the magnet 21 forming the magnetic pole, so as to change the distribution of the components of the magnetic field in the first direction and the second direction, and further, after the vibration device 100 is designed and manufactured, the adjustment of the components of the vibration in the first direction and the second direction can still be achieved by adjusting the orientation of the magnet 21, so as to adjust the vibration effect.
The embodiment of the magnetic circuit assembly 2 in which the orientation of the magnet 21 is adjustably set is not limited, for example, the magnetic circuit assembly 2 has a mounting frame or a mounting frame for mounting the magnet 21, the magnet 21 is rotatably and adjustably provided on the mounting frame, and an operation key for driving the magnet 21 to rotate may be provided on the housing 1, or the magnetic circuit assembly 2 as a whole may be rotatably and adjustably mounted on the housing 1, and a structure such as a knob for adjusting the rotation of the magnetic circuit assembly 2 may be provided on the housing 1, and the structure for achieving the orientation adjustable setting of the magnet 21 of the magnetic circuit assembly 2 is not limited to the above embodiment.
In the embodiment of the present invention, please refer to fig. 5 and fig. 6, in order to obtain a sufficient magnetic field strength in a limited space, the magnet 21 of the magnetic circuit assembly 2 is configured as a Halbach Array in a structure of a Halbach Array, which belongs to a mature technology and will not be described in detail herein.
In the embodiment of the present invention, the magnetic circuit assembly 2 includes a magnet assembly 2a, the magnet assembly 2a includes two magnets 21 distributed and spaced along a first direction, a gap between the two magnets 21 forms the magnetic gap 20, and the magnetizing directions of the two magnets 21 are inclined with respect to the first direction, so that the magnetic gap 20 can be realized by the magnets 21 disposed opposite to each other, so that the structure of the magnetic circuit assembly 2 is relatively simple.
The number of the magnet groups 2a is not limited, and may be set according to specific requirements, in an embodiment of the present invention, the magnet groups 2a are arranged in at least two groups, specifically two groups are shown in the figure, the polarities of the magnets 21 of the two groups of magnet groups 2a located on the same side of the magnetic gap 20 are opposite, so that the magnetic fields of the magnetic gap 20 at the positions corresponding to the two groups of magnet groups 2a are opposite, and two opposite sides of the coil 31 extending along the third direction are located in the magnetic gap 20 corresponding to the two groups of magnet groups 2a correspondingly.
When current flows in the coil 31, the directions of the current in the two opposite sides of the coil 31 extending in the third direction are opposite, and for this reason, if the directions of the ampere forces received by the two sides are consistent, it is necessary to make the directions of the magnetic fields of the magnetic gaps 20 corresponding to the two sides opposite, so that the directions of the magnetic fields of the magnetic gaps 20 at the positions corresponding to the two sets of magnet groups 2a are opposite, so that the directions of the ampere forces generated by the two sides are consistent, so as to increase the vibration force.
Further, in order to obtain a sufficient force, in the embodiment of the present invention, the coil 31 is disposed in an elongated shape along the third direction, so that the coil 31 has two long sides 31a extending along the third direction, the magnets 21 of the two sets of magnet groups 2a extend along the third direction, the two long sides 31a of the coil 31 are correspondingly located in the magnetic gaps 20 corresponding to the two sets of magnet groups 2a, and the driving force generated by the coil 31 is larger by the coil 31 disposed in the elongated shape and the long sides 31a as the driving sides.
In order to enhance the magnetic field strength of the magnetic gap 20, in the embodiment of the present invention, the magnet 21 of the magnetic circuit assembly 2 is provided with the washer 24 on the side facing away from the magnetic gap 20, and specifically, the side of the magnet 21 of the magnet group 2a on both sides of the magnetic gap 20 facing away from the magnetic gap 20 is provided with the washer 24.
The resonance frequency of the vibrator, also called resonance frequency, is commonly referred to as
Where k is the elastic coefficient and m is the mass, the vibrator (i.e., the vibrating member and the vibrating member)The elastic supporting member 4) is not limited to the above-mentioned f1 and f2, and the specific magnitude relationship is not limited, and f1 and f2 are in a multiple relationship in order to make the vibrations in the first direction and the second direction have a better body feeling, for example, f1 is 2 times, 3 times to N times of f2, and N is a positive integer. Obviously, the two may not necessarily be in a multiple relationship, and in the embodiment of the present invention, 1.1 ≦ f1/f2 ≦ 2.5, more specifically, f1/f2=2.
For this purpose, when the vibrator vibrates at a vibration frequency f1, the vibration frequency coincides in magnitude with a resonance frequency f1 of the vibrator in a first direction, so that the vibrator resonates in the first direction to generate a strong vibration effect, and when the vibrator vibrates at a vibration frequency f2, the vibration frequency coincides in magnitude with a resonance frequency f2 of the vibrator in a second direction, so that the vibrator resonates in the second direction to generate a strong vibration effect.
As can be seen from the foregoing, the mass m affects the resonant frequency of the oscillator, so the mass design of the oscillator is required, and in the embodiment of the present invention, the mass of the oscillator is m, m is less than or equal to 3g, specifically, m is less than or equal to 2.8g. The oscillator quality is less than 3g and can reduce vibrating device 100's whole quality to reduce electronic equipment's whole weight, carry more lightly, and, under the condition in same space, the oscillator quality is little, and the amplitude can be bigger, and the vibration effect is more obvious, improves user's experience.
Referring to fig. 2, 7 to 8, the elastic supporting member 4 may be a spring, an elastic sheet, or the like, and the design is not limited herein, specifically, in an embodiment of the present invention, the elastic supporting member 4 includes an elastic sheet 4a, the width direction of the elastic sheet 4a is arranged along a third direction, the elastic sheet 4a extends along the second direction and is bent in the first direction, one end of the elastic sheet 4a is mounted to the housing 1, and the other end is connected to the vibrating member, the bending frequency of the elastic sheet 4a is not limited, and theoretically, the more the bending frequency is, the better the elasticity is, but needs to be considered by integrating the production and manufacturing.
The arrangement position of the elastic sheet 4a is not limited, and specifically, in the embodiment of the present invention, the elastic sheet 4a is disposed between the end of the vibrating member in the second direction and the housing 1, so that the end surface of the vibrating member can be directly attached to the surface of the elastic sheet 4a to increase the contact area.
As can be seen from the foregoing, the bending times of the elastic sheet 4a are not limited, in the implementation of the present invention, in order to facilitate the bending formation of the elastic sheet 4a, the elastic sheet 4a is formed by one large bending, specifically, the elastic sheet 4a includes two folded plates 41, one end of each of the two folded plates 41 is connected to each other, the other end is opened, one end of each of the opened folded plates 41 is connected to the housing 1, and one end of each of the opened folded plates 41 is connected to the vibrating element. In addition, in order to facilitate the connection between the elastic sheet 4a and the housing 1 and the vibrating member, flat plate portions 4c are disposed at two ends of the elastic sheet 4 a.
More specifically, in the present embodiment, each of the flaps 41 includes a bent end 410, the two flaps 41 are connected by the bent end 410, the flaps 41 further include a first straight section 411, an inclined section 412 and a second straight section 413 disposed between the bent end 410 and one end of the flap 41 in an opened state, wherein the first straight section 411 of the two flaps 41 is disposed in parallel or at a small opening angle, the inclined section 412 of the two flaps 41 is disposed in a gradually opened state in a direction away from the first straight section 411, the second straight section 413 of the two flaps 41 is disposed in parallel or at a small opening angle, a fold 4b is formed between the first straight section 411 and the bent end 410, a fold 4b is formed before the first straight section 411 and the inclined section 412, a fold 4b is formed between the second straight section 413 and the inclined section 412, the width of the inclined section 412 is reduced from both ends thereof to the middle portion, so that the inclined section 412 has a suitable strength, and the second straight section 413 of the two flaps 41 is connected with the housing 1, so that the strength of the flap 41 is maintained at a suitable level, and the resilient member K is connected with the flap 41.
The number of the elastic pieces 4a is not limited, the elastic pieces 4a can be set to be multiple and better, the elastic pieces 4a are arranged oppositely, the two elastic pieces 4a are correspondingly connected with the two ends of the vibrating piece and the shell 1, specifically, in the embodiment, the two elastic pieces 4a are correspondingly connected with the vibrating piece along the two ends in the second direction and the shell 1, further, in the embodiment, the two elastic pieces 4a are oppositely arranged in the opening direction of the elastic pieces 4a, so that the action points of the vibrating piece are distributed along the first direction, specifically, the two elastic pieces 4a are connected with the two ends of the vibrating piece in the first direction, and further, the two ends of the vibrating piece in the first direction are both limited by the elastic pieces 4a, so that if the two elastic pieces 4a are arranged oppositely, the vibrating piece can be enabled to have only one supporting position in the first direction, and the other part is in a state, so that the stability of the vibrating piece is further affected, and the stability of the vibrating piece is simultaneously, and the two elastic pieces 4a can reduce the stress of the vibrating piece when the vibrating piece is overturned, so that the two elastic pieces 4a can generate a and the stress and the two elastic pieces can be properly staggered.
In addition, for the case that the elastic sheet 4a is provided with a plurality of elastic sheets, please refer to fig. 9, at least two elastic sheets 4a of the plurality of elastic sheets 4a may be provided to be connected into a whole through a connecting member 42, specifically, in this embodiment, the connecting member 42 connects two elastic sheets 4a that are provided oppositely and have openings arranged in opposite directions into a whole, the connecting member 42 includes a connecting plate 420 extending along the second direction, and two ends of the two elastic sheets 4a are correspondingly connected with two ends of the connecting plate 420.
Further, in this embodiment, the elastic pieces 4a are at least two pairs, and the two pairs of elastic pieces 4a are arranged corresponding to four corners of the vibrating member, so as to further increase the stability of the vibrating member. Furthermore, in this embodiment, the opening directions of any two adjacent elastic sheets 4a are opposite, so that the action points of the vibrating element in the same direction are also arranged up and down in the first direction, and a plurality of action points distributed up and down are formed on the same side, thereby further improving the vibration stability of the vibrating element.
Referring to fig. 10, a fold 4b is formed at a bent portion of the elastic sheet 4a, the fold 4b extends along the third direction, may be parallel to the third direction, or may be inclined from the third direction, specifically, in an embodiment of the present invention, the fold 4b is inclined from the third direction, obviously, an inclination angle β between the fold 4b and the third direction is not too large, if β would cause a position deflection of the elastic sheet 4a during bending, specifically, in an embodiment of the present invention, β is not less than 5 ° and not more than 10 °, when the fold 4b is inclined from the third direction, a length of the fold 4b is longer than a length of the fold 4b when the fold 4b is parallel to the third direction, which is beneficial to forming a stable fold 4b, so as to enhance a strength of the elastic sheet 4 a.
As can be seen from the foregoing, the general embodiments of the vibrating member are mainly divided into two types, one of which is that at least a part of the magnet 21 of the magnetic circuit assembly 2 is provided as the vibrating member, and the other of which is that the coil assembly 3 is provided as the vibrating member, and the two embodiments of the vibrating member are described in detail below with reference to fig. 1 to 3 and 11:
referring to fig. 1 to 3, at least a part of the magnets 21 of the magnetic circuit assembly 2 is configured as the vibrating member, and at this time, the coil assembly 3 is fixedly mounted on the housing 1, at least a part of the magnets 21 of the magnetic circuit assembly 2 can be configured to vibrate, and a specific part of the magnets 21 of the magnetic circuit assembly 2 is not limited as the vibrating member, for example, the magnets 21 of the magnetic circuit assembly 2 located on one side of the magnetic gap 20 may be configured as the vibrating member, or the magnets 21 of the magnetic circuit assembly 2 located on two sides of the magnetic gap 20 may be configured as the vibrating member, depending on actual design requirements.
Further, as can be seen from the foregoing, the resonant frequency is related to the mass, and for this reason, it is necessary to precisely control the mass of the oscillator, and it is obviously difficult to achieve the purpose of controlling the mass of the oscillator only through the precise control of the mass of the magnet 21, so in general, the magnetic circuit assembly 2 further needs to be provided with a counterweight structure, and specifically, in the embodiment of the present invention, the magnetic circuit assembly 2 further includes a first counterweight fixedly connected to the magnet 21 provided as the oscillator, and the purpose of precisely controlling the mass of the oscillator can be achieved by providing an undercut or a structure additionally provided with a convex rib on the first counterweight.
The specific structure and configuration of the first weight are not limited, and specifically, in an embodiment of the present invention, the magnets 21 located at both sides of the magnetic gap 20 in the magnetic circuit assembly 2 are both provided as the vibrating member, the first weight includes two first mass blocks 22 and two connecting blocks 23, the two first mass blocks 22 are correspondingly provided for the magnets 21 at both sides of the magnetic gap 20, the two connecting blocks 23 are located at the outer side of the magnetic gap 20 and correspondingly connected to both ends of the two first mass blocks 22, the two connecting blocks 23 are respectively connected to the housing 1 through the elastic supporting member 4, the first weight is divided into two parts, so that the design is more flexible, and the two connecting blocks 23 are located at the outer side of the magnetic gap 20, so that the two connecting blocks 23 do not occupy the size of the magnetic circuit assembly 2 in the first direction, thereby facilitating the design requirement of being light and thin.
Further, in the embodiment of the present invention, the first mass block 22 is provided with the mounting groove in which the magnet 21 of the magnetic circuit assembly 2 is disposed, so that the thickness of the magnetic circuit assembly 2 in the first direction can be further reduced, it is obvious that the present design is not limited thereto, the first mass block 22 may be provided in a plate shape, and the magnet 21 of the magnetic circuit assembly 2 may be directly adhesively fixed to one side surface of the first mass block 22.
In the embodiment of the present invention, one of the first mass block 22 and the connecting block 23 is provided with a snap, and the other is provided with a snap, and the first mass block 22 and the connecting block 23 are fixedly connected by the snap and the snap to fix the first mass block 22 and the connecting block 23 by a simple structure.
In addition, in the embodiment provided in fig. 1 to 3, the coil assembly 3 further includes a coil support 32 for mounting the coil 31, and the coil assembly 3 is further provided with an electrical connector 33 for connecting the coil 31 with an external power supply, specifically, in the present embodiment, the electrical connector is an FPCB, that is, a flexible cable.
Referring to fig. 11, in the embodiment of the present invention, the coil assembly 3 is configured as the vibrating member. As can be seen from the foregoing, the resonant frequency is related to the mass, and for this reason, it is necessary to precisely control the mass of the oscillator, and it is obviously difficult to achieve the purpose of controlling the mass of the oscillator only through the precise control of the mass of the coil assembly 3, so in general, the magnetic circuit assembly 2 further needs to be provided with a counterweight structure, and specifically, in the embodiment of the present invention, the coil assembly 3 includes a second counterweight member fixedly connected to the coil assembly 3, and the purpose of precisely controlling the mass of the oscillator can be achieved through a structure in which an undercut is formed on the second counterweight member or a rib is additionally provided.
The specific configuration and structure of the second weight member are not limited, and in particular, in the present embodiment, the second weight member includes two second mass blocks 34, the coil 31 is disposed between the two mass blocks 34, and the two mass blocks 34 are connected to the housing 1 through the elastic support 4.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.
Claims (10)
1. A vibratory apparatus, comprising:
a housing;
a magnetic circuit assembly and a coil assembly, both mounted to the housing, a magnet of the magnetic circuit assembly defining a magnetic gap arranged in a first direction in a width direction, the coil assembly including a coil, at least a part of the magnet of the magnetic circuit assembly or the coil assembly being provided as a vibrating member; and the number of the first and second groups,
the elastic supporting piece is connected with the shell and the vibrating piece, forms a vibrator together with the vibrating piece, and can elastically deform in a first direction and a second direction which are orthogonal;
wherein a magnetizing direction of a magnet of the magnetic circuit assembly is disposed obliquely to the first direction to have components in both the first direction and the second direction, the coil has a wire section extending in a third direction, at least the wire section of the coil is disposed in the magnetic gap, and the third direction is disposed orthogonally to the first direction and the second direction so that the vibrator vibrates in the first direction and the second direction when the coil is energized with an alternating current;
the resonant frequency of the vibrator in the first direction is f1, the resonant frequency of the vibrator in the second direction is f2, and the f1 is different from the f 2;
wherein the inclination angle between the magnetizing direction and the first direction is alpha, and alpha is more than or equal to 5 degrees and less than or equal to 85 degrees;
the plane of the coil is parallel to the plane of the end of the magnet of the magnetic circuit component.
2. A vibratory device in accordance with claim 1 wherein f1 is a multiple of f 2.
3. The vibration apparatus as claimed in claim 1, wherein f1/f2 is 1.1. Ltoreq.f 1.ltoreq.2.5.
4. A vibratory device as set forth in claim 3 wherein f1/f2=2.
5. The vibration apparatus of claim 1, wherein the vibrator has a mass m of 3g or less.
6. A vibratory device as set forth in claim 5 wherein m.ltoreq.2.8 g.
7. A vibratory device as set forth in claim 1 wherein the orientation of the magnets of said magnetic circuit assembly is adjustably positioned.
8. Vibrating apparatus according to claim 1, wherein the side of the magnet of the magnetic circuit assembly facing away from the magnetic gap is provided with washers.
9. An electronic device, characterized in that the electronic device comprises a vibration apparatus according to any one of claims 1 to 8.
10. The electronic device of claim 9, wherein the electronic device comprises a game operating apparatus or a mobile terminal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617470.8A CN111641313B (en) | 2020-06-30 | 2020-06-30 | Vibration device and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617470.8A CN111641313B (en) | 2020-06-30 | 2020-06-30 | Vibration device and electronic apparatus |
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| CN111641313A CN111641313A (en) | 2020-09-08 |
| CN111641313B true CN111641313B (en) | 2022-10-18 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5461381B2 (en) * | 2010-12-17 | 2014-04-02 | アルプス電気株式会社 | Vibration generator |
| CN204967591U (en) * | 2015-08-18 | 2016-01-13 | 歌尔声学股份有限公司 | Slant motor that magnetizes |
| CN205081655U (en) * | 2015-10-15 | 2016-03-09 | 瑞声光电科技(常州)有限公司 | Double resonance vibrating motor |
| CN108199555A (en) * | 2018-01-03 | 2018-06-22 | 瑞声科技（南京）有限公司 | Vibrating motor |
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