CN111641322B - Vibration device and electronic apparatus - Google Patents
Vibration device and electronic apparatus Download PDFInfo
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- CN111641322B CN111641322B CN202010624007.6A CN202010624007A CN111641322B CN 111641322 B CN111641322 B CN 111641322B CN 202010624007 A CN202010624007 A CN 202010624007A CN 111641322 B CN111641322 B CN 111641322B
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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
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 support component, at least part of a magnet of the magnetic circuit component or the coil component is arranged as a vibration component, the elastic support component is connected with the shell and the vibration component, the magnet of the magnetic circuit component is obliquely arranged along the first direction so as to ensure that the direction of a magnetic field formed in a magnetic gap is also obliquely arranged at an included angle with the first direction, a lead section of the coil extending along the third direction is arranged in the magnetic gap, when the coil is electrified with alternating current, a vibrator vibrates in the first direction and the second direction, the elastic support component comprises elastic sheets, the width direction of the elastic sheets is arranged along the third direction, the elastic sheets extend along the second direction and are bent in the first direction, the crease of shell fragment is the slope setting with the third direction, can strengthen the intensity of shell fragment.
Description
Technical Field
The invention relates to the technical field of vibration devices, in particular to a vibration device and electronic equipment.
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
For this purpose, the inventor has devised a method for providing a magnetic force having two directional components by oblique magnetization, driving a vibrating member movable in the two directions by the magnetic force to realize two-directional vibration of a vibrating device, and then how an elastic supporting member is arranged to directly affect the final vibration effect of the vibrating member.
The invention mainly aims to provide a vibration device and electronic equipment, and aims to realize vibration in two directions through one vibration device so as to solve the problem that a plurality of vibration devices are correspondingly needed when vibration in two directions is needed in the prior art.
In order to achieve the above object, the present invention provides a vibration device, including:
a housing;
a magnetic circuit assembly and a coil assembly, both mounted to the housing, the magnet of the magnetic circuit assembly defining a magnetic gap, the coil assembly including a coil, at least a portion 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 the orientation of the magnets of the magnetic circuit assembly is arranged obliquely to the first direction such that the width direction of the magnetic gap is arranged at an oblique angle to the first direction and the direction of the magnetic field formed in the magnetic gap is also arranged at an oblique angle 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 arranged in the magnetic gap, and the third direction is arranged orthogonally to the first direction and the second direction such that, when the coil is energized with an alternating current, the vibrator vibrates in the first direction and the second direction;
elastic support piece includes the shell fragment, the width direction of shell fragment lays along the third direction, just the shell fragment is followed the second direction extends and buckles in the first direction, the one end of shell fragment is installed extremely the casing, the other end is connected the vibration piece sets up, the department of buckling of shell fragment is formed with the crease, the crease along the third direction extends and is the slope setting with the third direction.
Optionally, the angle of inclination of the fold to the third direction is β, 5 ° ≦ β ≦ 10 °.
Optionally, the elastic sheet is disposed between the end of the vibrating member in the second direction and the housing.
Optionally, the shell fragment includes two folded plates, the one end interconnect of two folded plates, the other end are and open the setting, one the folded plate is that the one end that opens the setting is connected with the casing, another the folded plate be the one end that opens the setting with the vibrating part is connected.
Optionally, the elastic pieces are arranged in a plurality of pairs, and the two elastic pieces are correspondingly connected with two ends of the vibrating piece and the shell.
Optionally, the elastic sheet comprises two folded plates, one ends of the two folded plates are connected with each other, the other ends of the two folded plates are opened, one opened end of one folded plate is connected with the shell, and the other opened end of the other folded plate is connected with the vibrating piece;
the opening directions of the oppositely arranged elastic sheets are opposite.
Optionally, the elastic pieces are arranged in a plurality, and at least two elastic pieces are connected into a whole through a connecting piece.
Optionally, at least two pairs of the elastic sheets are arranged;
the two pairs of elastic sheets are arranged corresponding to four corners of the vibrating piece.
Optionally, the elastic sheet comprises two folded plates, one ends of the two folded plates are connected with each other, the other ends of the two folded plates are opened, one opened end of one folded plate is connected with the shell, and the other opened end of the other folded plate is connected with the vibrating piece;
the opening directions of any two adjacent elastic sheets are opposite.
Optionally, the elastic pieces are arranged in a plurality, and at least two elastic pieces are connected into a whole through a connecting piece.
Optionally, the orientation of the magnets of the magnetic circuit assembly is adjustably set.
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, the magnet of the magnetic circuit assembly defining a magnetic gap, the coil assembly including a coil, at least a portion 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 the orientation of the magnets of the magnetic circuit assembly is arranged obliquely to the first direction such that the width direction of the magnetic gap is arranged at an oblique angle to the first direction and the direction of the magnetic field formed in the magnetic gap is also arranged at an oblique angle 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 arranged in the magnetic gap, and the third direction is arranged orthogonally to the first direction and the second direction such that, when the coil is energized with an alternating current, the vibrator vibrates in the first direction and the second direction;
elastic support piece includes the shell fragment, the width direction of shell fragment lays along the third direction, just the shell fragment is followed the second direction extends and buckles in the first direction, the one end of shell fragment is installed extremely the casing, the other end is connected the vibration piece sets up, the department of buckling of shell fragment is formed with the crease, the crease along the third direction extends and is the slope with the third direction and establishes.
Optionally, the electronic device includes a game operating apparatus or a mobile terminal device.
In the invention, the magnetic circuit component is provided with the magnet which is inclined towards the first direction, so that the width direction of the magnetic gap is arranged to form an inclined included angle with the first direction, and the direction of the magnetic field formed in the magnetic gap is also arranged to form an inclined included angle with the first direction, to have components in both a first direction and a second direction, said coil having wire segments extending in a third direction, at least the wire segments of said coil being disposed in said magnetic gap, said third direction being disposed orthogonal to said first and second directions such that, the vibrator vibrates in a first direction and a second direction when the coil is energized with an alternating current, so that the vibration device can realize vibration in both directions, the defect caused by the fact that two vibration devices need to be adopted to realize vibration in two directions in the prior art is overcome.
And elastic support piece includes the shell fragment, the width direction of shell fragment is laid along the third direction, just the shell fragment is followed the second direction extends and buckles in the first direction, the one end of shell fragment is installed extremely the casing, the other end is connected the setting of vibration piece, the department of buckling of shell fragment is formed with the crease, the crease along the third direction extends and is the slope setting with the third direction, so that elastic deformation in first direction and second direction can be realized to the shell fragment, can strengthen through the slope the intensity of shell fragment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or 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 the vibration device of FIG. 1 shown removed from the housing;
FIG. 3 is a schematic cross-sectional view of FIG. 1, wherein the first proof mass of FIG. 3 is not shown and the spring is connected to the first proof mass;
FIG. 4 is a perspective view of a portion of the structure of FIG. 1;
fig. 5 is a schematic sectional view of the vibration device provided in fig. 1, in which a magnetic circuit assembly and a coil assembly are in another embodiment,
FIG. 6 is a schematic cross-sectional view of yet another embodiment of the magnetic circuit assembly and coil assembly of the vibration apparatus provided in FIG. 1, wherein the magnets of the magnetic circuit assembly are in a Halbach array configuration;
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 schematic 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 perspective view of another embodiment of the vibration device provided by the present invention with a housing removed;
FIG. 12 is a perspective view of a portion of the structure of FIG. 11;
fig. 13 is a schematic cross-sectional view of the vibration device provided in fig. 11.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
31a | Long side | |
| 1 | Shell body | 34 | Second |
|
| 11 | |
4 | |
|
| 12 | |
4a | |
|
| 2 | |
41 | Folded |
|
| 20 | |
410 | |
|
| 2a | |
411 | First |
|
| 21 | |
412 | Inclined |
|
| 2b | |
413 | Second straight section | |
| 22 | A |
| Fold line | |
| 23 | |
4c | Flat plate part | |
| 3 | |
42 | Connecting |
|
| 31 | |
420 | Connecting plate |
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 clearly and completely described below 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 up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
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 various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory 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, the first direction is a vertical direction, and the second direction and the third direction may correspond to a left direction, a right direction and a front direction and a 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, wherein the magnetic circuit assembly 2 and the coil assembly 3 are both mounted on the housing 1, a magnet 21 of the magnetic circuit assembly 2 defines a magnetic gap 20, 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 configured as a vibration member, the elastic support 4 is connected to the housing 1 and the vibration member and configured to form a vibration member together with the vibration member, and is elastically deformable in a first direction and a second direction orthogonal to each other, wherein an orientation of the magnet 21 of the magnetic circuit assembly 2 (specifically, an orientation of an end of the magnet 21 forming a magnetic pole (i.e., a south pole or a north pole)) is inclined with respect to the first direction (see further fig. 5 and 6), so that the width direction of the magnetic gap 20 is arranged at an inclined angle to the first direction, and the direction of the magnetic field formed in the magnetic gap 20 is also arranged at an inclined angle to the first direction, so as to have components in both the first direction and the second direction, the coil 31 has a wire section extending in a third direction, at least the wire section of the coil 31 is arranged in the magnetic gap 20, and the third direction is arranged orthogonal to the first direction and the second direction, so that, when the coil 31 is energized with an alternating current, the vibrator vibrates in the first direction and the second direction.
Fig. 11 to 13 mainly differ 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 to 13.
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 to enable the thumb to be perpendicular to the other four fingers and in the same plane, so that the 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 exerted by the coil 31 in the magnetic field, and accordingly the magnet 21 of the magnetic circuit assembly 2, is subjected to a reaction force, because the magnet 21 of the magnetic circuit assembly 2 is oriented obliquely to the first direction, such that the magnetic field formed in the magnetic gap 20 is also oriented obliquely to the first direction, and has components in both the first direction and the second direction, such that the reaction force and the reaction force have components in both the first direction and the second direction, for which purpose the coil assembly 3 or at least part of the magnet 21 of the magnetic circuit assembly 2 can 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, can vibrate in both the first direction and the second direction under the action of the action force, and likewise, when at least part of the magnet 21 of the magnetic circuit assembly 2 is provided as a vibrating member, under the reaction force, at least part of the magnet 21 vibrates in the first direction and the second direction, so that the vibration device 100 can realize vibration in two directions, and the defects caused by the need of adopting two vibration devices 100 to realize vibration in two directions in the prior art are overcome.
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 magnets 21 of the coil assembly 3 or the magnetic circuit assembly 2 are configured as a vibrating member, in order to avoid an influence of the housing 1 on the vibrating member, the housing 1 is made of 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 the interference of the force in the non-vibration direction on the vibration direction can be reduced.
The orientation of the magnet 21 of the magnetic circuit component 2 is set to be inclined with the first direction, so that the magnetic circuit component 2 can be arranged in an inclined manner as a whole after being arranged normally, and the specific arrangement mode is not limited.
Referring further to fig. 5 and 6, the inclination angle of the magnet of the magnetic circuit assembly with respect to the first direction is α, which is theoretically greater than 0 ° but smaller than 90 °, and generally 0 ° < α ≦ 85 ° for practical design, and the specific angle is determined according to the magnitude of the magnetic field component for the first direction and the second direction, more specifically, according to the magnitude of the aforementioned acting force in the first direction and the second direction, and specifically, in the embodiment of the present invention, 0 ° < α ≦ 30 °.
As can be seen from the foregoing, the magnet 21 of the magnetic circuit assembly 2 is oriented obliquely to the first direction, and specifically, in this embodiment, the plane of the end of the magnet 21 of the magnet assembly 2 is inclined to the first direction, the coil 31 of the coil assembly 3 is at least partially arranged in the magnetic gap 20, for which purpose, in order to adapt the arrangement of the magnets 21, in the present embodiment, the plane of the coil 31 is parallel to the plane of the end of the magnet 21 of the magnetic circuit assembly 2, and thus, with the arrangement in which the coil block 3 is provided as an oscillating member, the force directions of the coil 31 are all on the same plane, taking fig. 13 as an example, the direction of force applied to both long sides 31a of the coil 31 is located on the plane of the coil 31, and for this purpose, the two long sides 31a are not displaced in the magnetic field direction by the force, and are not twisted.
It is obvious that the present design is not limited to this, and it is also possible that the coil 31 is disposed without being affected by the magnet 21, and the plane in which the coil 31 is disposed at an inclined angle to the plane in which the end portion of the magnet 21 of the magnetic circuit assembly 2 is disposed, specifically, the plane in which the coil 31 is disposed in parallel with 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.
The magnetic circuit assembly 2 forms the magnetic gap 20, and a structure of how to form the magnetic gap 20 is not limited, in an embodiment of the present invention, the magnetic circuit assembly 2 includes a magnet group 2a, the magnet group 2a includes two magnets 21 distributed in a direction inclined to a first direction and arranged at an interval, a gap between the two magnets 21 forms the magnetic gap 20, and magnetizing directions of the two magnets 21 are inclined to the first direction, so that the magnetic gap 20 can be realized by the magnets 21 arranged opposite to each other, so that the structure of the magnetic circuit assembly 2 is simpler.
The number of the magnet sets 2a is not limited, and may be set according to specific needs, in an embodiment of the present invention, the magnet sets 2a are arranged in at least two groups, specifically two groups are shown in the figure, polarities of the magnets 21 of the two groups of magnet sets 2a located on the same side of the magnetic gap 20 are opposite, so that directions of magnetic fields of the magnetic gap 20 corresponding to the two groups of magnet sets 2a are opposite, and two opposite sides of the coil 31 extending in the third direction are correspondingly located in the magnetic gap 20 corresponding to the two groups of magnet sets 2 a.
It should be noted here that the manner of forming the at least two sets of magnet groups is not limited, and a plurality of independently arranged magnets 21 may be arranged on each side of the magnetic gap 20 to form a plurality of magnet groups 2a correspondingly, as shown in fig. 5, or at least two magnets 21 located on the same side of the magnetic gap 20 may be integrally arranged to be formed on the same magnetic block 2b in a multi-stage magnetizing manner, as shown in fig. 3, so that the magnets 21 located on the same side of the magnetic gap 20 may be arranged as a whole, which is more compact in structure and convenient to install.
In the embodiment of the present invention, referring to 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 in a Halbach Array structure, which belongs to a mature technology and is not described in detail herein.
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 23 on the side facing away from the magnetic gap 20, and specifically, the washer 23 is provided on the side facing away from the magnetic gap 20 of the magnet 21 of the magnet set 2a on both sides of the magnetic gap 20.
The resonance frequency of the vibrator, also called resonance frequency, is commonly referred to as
Where k is an elastic coefficient, m is a mass, a resonant frequency of the vibrator (i.e., the vibrating element and the elastic supporting member 4) in the first direction is f1, a resonant frequency of the vibrator in the second direction is f2, both f1 and f2 are not equal, a specific magnitude relationship is not limited, and the vibrator is specifically designed according to user needs, specifically, in the embodiment of the present invention, 1.1 ≦ f1/f2 ≦ 2.5, and more specifically, f1/f2 ≦ 2.
For this reason, when the vibrator vibrates at a vibration frequency of f1, the vibration frequency coincides in magnitude with a resonance frequency f1 of the vibrator in a first direction, thereby causing the vibrator to resonate in the first direction to produce a strong vibration effect, and when the vibrator vibrates at a vibration frequency of f2, the vibration frequency coincides in magnitude with a resonance frequency f2 of the vibrator in a second direction, thereby causing the vibrator to resonate in the second direction to produce 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 m of the oscillator is m, m is less than or equal to 3g, specifically, m is less than or equal to 2.8 g. 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 a 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 greater the bending frequency, the better the elasticity is, but needs to be considered by integrating the production and manufacturing thereof.
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 casing 1 and the vibrating element, flat plate portions 4c are arranged 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, which are disposed between the bent end 410 and one end of the flap 41 in the opened position, 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 position 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 crease 4b is formed between the first straight section 411 and the bent end 410, a crease 4b is formed before the first straight section 411 and the inclined section 412, and a crease 4b is formed between the second straight section 413 and the inclined section 412, the inclined section 412 is reduced in width from both ends to the middle thereof so that the inclined section 412 has a suitable strength, and the second straight sections 413 of the two flaps 41 are connected to the vibrating member and the housing 1, respectively, so that the flaps 41 maintain a suitable strength by bending the flaps 41 a plurality of times to maintain a suitable elastic coefficient K.
The number of the elastic pieces 4a is not limited, and may be set to be plural, and preferably, the elastic pieces 4a are arranged pairwise, and the two elastic pieces 4a are correspondingly connected with two ends of the vibrating member and are arranged with the housing 1, specifically, in this embodiment, the two elastic pieces 4a are correspondingly connected with two ends of the vibrating member along the second direction and are arranged with the housing 1, further, in this embodiment, the opening directions of the elastic pieces 4a are set oppositely, so that the acting points of the two elastic pieces 4a on the vibrating member are distributed along the first direction, specifically, the two elastic pieces 4a are connected with two ends of the vibrating member along the first direction, and further, two ends of the vibrating member along the first direction are both limited by the elastic pieces 4a, so as to avoid that if the two elastic pieces 4a are arranged oppositely, the vibrating piece is provided with a supporting position only in the first direction, the other part of the vibrating piece is in a suspension state, the stability of the vibrating piece is insufficient, the stability of vibration is affected, and meanwhile, because the action points of the two elastic sheets 4a on the vibrating piece are dislocated, the vibrating piece can turn over moderately when vibrating to buffer the action of the two elastic sheets 4a, so that the stress of the two elastic sheets 4a can be reduced.
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 which 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.
Furthermore, the elastic sheet 4a can be provided with a plurality of pairs, that is, the elastic sheet 4a is provided with at least two pairs, and the two pairs of the elastic sheets 4a are arranged corresponding to four corners of the vibrating piece, so as to further increase the stability of the vibrating piece. Furthermore, in this embodiment, the opening directions of any two adjacent spring pieces 4a are opposite to each other, 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, the elastic sheet 4a forms a fold 4b at the bent portion, the fold 4b extends along the third direction and may be parallel to the third direction, and in fig. 7 to 9, the fold 4b is parallel to the third direction, so that the elastic sheet 4a is easily deformed in the first direction and the second direction, and the elastic support is implemented by a simple structure. The folding line 4b may be disposed obliquely to the third direction, as shown in fig. 10, or may be disposed obliquely to the third direction, specifically, in an embodiment of the present invention, the folding line 4b is disposed obliquely to the third direction, obviously, the inclination angle β of the two is not too large, if β would cause the position of the elastic sheet 4a to deflect during the bending process, specifically, in an embodiment of the present invention, β is not less than 5 ° and not more than 10 °, and when the folding line 4b is disposed obliquely to the third direction, the length of the folding line 4b is longer than the length of the folding line 4b when the folding line 4b is disposed parallel to the third direction, which is beneficial to forming a stable folding line 4b so as to enhance the 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 5 and 11 to 13:
referring to fig. 1 to 5, 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 to 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 masses 22, the two first masses 22 are correspondingly mounted to the magnets 21 located at both sides of the magnetic gap 20, the two first masses 22 are respectively connected to the housing 1 through the elastic supporting member 4, the design is more flexible by separately providing the first weight, 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, which is favorable for 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.
Referring to fig. 11 to 13, in the embodiment of the present invention, the coil element 3 is configured as the vibrating element. 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 specifically, in the present embodiment, the second weight member includes two second masses 34, the coil 31 is disposed between the two masses 34, and the two masses 34 are connected to the housing 1 through the elastic support member 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 modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A vibratory apparatus, comprising:
a housing;
a magnetic circuit assembly and a coil assembly, both mounted to the housing, the magnet of the magnetic circuit assembly defining a magnetic gap, the coil assembly including a coil, at least a portion 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 the orientation of the magnets of the magnetic circuit assembly is arranged obliquely to the first direction such that the width direction of the magnetic gap is arranged at an oblique angle to the first direction and the direction of the magnetic field formed in the magnetic gap is also arranged at an oblique angle 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 arranged in the magnetic gap, and the third direction is arranged orthogonally to the first direction and the second direction such that, when the coil is energized with an alternating current, the vibrator vibrates in the first direction and the second direction;
elastic support piece includes the shell fragment, the width direction of shell fragment lays along the third direction, just the shell fragment is followed the second direction extends and buckles in the first direction, the one end of shell fragment is installed extremely the casing, the other end is connected the vibration piece sets up, the department of buckling of shell fragment is formed with the crease, the crease along the third direction extends and is the slope setting with the third direction.
2. The vibratory apparatus of claim 1 wherein the angle of inclination of the fold to the third direction is β, 5 ° β 10 °.
3. The vibration apparatus as claimed in claim 1, wherein the resilient plate is provided between an end of the vibrating member in the second direction and the housing.
4. A vibratory apparatus as set forth in claim 1 wherein said resilient tab includes two flaps, one end of said two flaps being connected to one another and the other end of said two flaps being in an open configuration, one end of one of said flaps being in an open configuration being connected to said housing and the other end of said flap being in an open configuration being connected to said vibratory member.
5. The vibration device according to claim 1, wherein the elastic pieces are provided in plurality and paired in pairs, and the two elastic pieces are correspondingly connected with two ends of the vibration member and the housing.
6. A vibratory apparatus in accordance with claim 5 wherein said resilient member comprises two flaps, one end of said two flaps being connected to one another and the other end of said two flaps being flared, one flared end of one of said flaps being connected to said housing and the other flared end of said one of said flaps being connected to said vibratory member;
the opening directions of the oppositely arranged elastic sheets are opposite.
7. The vibration apparatus as claimed in claim 5, wherein said resilient pieces are provided in at least two pairs;
the two pairs of elastic sheets are arranged corresponding to four corners of the vibrating piece.
8. The vibration apparatus as claimed in claim 7, wherein the resilient plate comprises two folded plates, one end of the two folded plates being connected to each other and the other end being opened, one end of one of the folded plates being opened being connected to the housing and the other end of the other folded plate being opened being connected to the vibrating member;
the opening directions of any two adjacent elastic sheets are opposite.
9. The vibration device as claimed in claim 1, wherein the elastic pieces are provided in plurality, and at least two of the elastic pieces are connected into a whole through a connecting piece.
10. A vibratory device as set forth in claim 1 wherein the orientation of the magnets of said magnetic circuit assembly is adjustably positioned.
11. An electronic device, characterized in that the electronic device comprises a vibration apparatus according to any one of claims 1 to 10.
12. The electronic device of claim 11, wherein the electronic device comprises a game operating apparatus or a mobile terminal device.
Priority Applications (1)
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| CN202010624007.6A CN111641322B (en) | 2020-06-30 | 2020-06-30 | Vibration device and electronic apparatus |
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| CN202010624007.6A CN111641322B (en) | 2020-06-30 | 2020-06-30 | Vibration device and electronic apparatus |
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| CN111641322B true CN111641322B (en) | 2022-03-25 |
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| CN113972808B (en) * | 2021-10-27 | 2023-05-09 | 歌尔股份有限公司 | Linear vibration motor |
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