CN111010013B

CN111010013B - Vibrator and screen sound production equipment

Info

Publication number: CN111010013B
Application number: CN201911260401.XA
Authority: CN
Inventors: 张金龙
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2021-12-14
Anticipated expiration: 2039-12-10
Also published as: CN111010013A

Abstract

The embodiment of the application provides a vibrator, including stator module, vibrator subassembly and elastic component. The stator assembly comprises a first shell with a first accommodating groove and a first magnet positioned in the first accommodating groove; the vibrator assembly and the stator assembly are oppositely arranged at intervals, the vibrator assembly comprises a second shell with a second accommodating groove and a second magnet positioned in the second accommodating groove, and the first magnet can drive the second magnet to linearly reciprocate so that the vibrator assembly can linearly reciprocate relative to the stator assembly; the elastic component is connected with the first shell and the second shell, and the elastic component is detachably connected with at least one of the first shell and the second shell. Utilize elastic component's elastic deformation to avoid interfering the relative stator module linear reciprocating motion of vibrator subassembly, be convenient for install stator module and vibrator subassembly in step, solve stator module and vibrator subassembly and install separately, the problem of installation off normal easily appears. The embodiment of the application also provides screen sounding equipment which comprises the vibrator.

Description

Vibrator and screen sound production equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a vibrator and screen sounding equipment.

Background

The screen sound production equipment is electronic equipment which drives the screen of the screen sound production equipment to vibrate by utilizing vibration of a vibrator arranged in the screen sound production equipment, and the screen vibration drives air to vibrate to generate sound waves and transmit the sound waves to human ears. The screen sounding device takes a mobile phone as an example, and the vibrator is used for driving the screen of the mobile phone to sound so as to replace a receiver of the mobile phone in the prior art, so that holes can be prevented from being formed in the mobile phone, and the screen occupation ratio can be improved. The existing vibrator comprises a stator fixedly connected with a shell of the mobile phone and a vibrator connected with a screen, the vibrator is driven to vibrate through the stator, and then the screen is driven to vibrate through the vibrator. Because oscillator and stator are installed separately, oscillator and stator installation off normal easily appear, influence the transmission of magnetic power between oscillator and the stator to influence screen vibration, lead to the problem that the vibration effect is poor.

Disclosure of Invention

In view of the above, embodiments of the present application are intended to provide a vibrator and a screen sound generating apparatus. The vibrator and the stator are separately installed, the vibrator and the stator are prone to installation deviation, and the problem that magnetic power conduction between the vibrator and the stator is affected is solved.

In order to achieve the purpose, the technical scheme of the application is realized as follows:

an aspect of an embodiment of the present application provides a vibrator, including:

the stator assembly comprises a first shell with a first accommodating groove and a first magnet positioned in the first accommodating groove;

the vibrator assembly is arranged opposite to and spaced from the stator assembly and comprises a second shell with a second accommodating groove and a second magnet positioned in the second accommodating groove, and the first magnet can drive the second magnet to linearly reciprocate so that the vibrator assembly can linearly reciprocate relative to the stator assembly; and

and the elastic assembly is connected with the first shell and the second shell, and the elastic assembly is detachably connected with at least one of the first shell and the second shell.

Furthermore, the elastic assembly comprises an elastic sheet and a connecting piece, the elastic sheet is provided with an avoiding area, the avoiding area is used for avoiding the first accommodating groove and the second accommodating groove, and the elastic sheet is detachably connected with at least one of the first shell and the second shell through the connecting piece.

Furthermore, the elastic sheet is connected with at least one of the first shell and the second shell in a clamping, bolt or pin connection mode through the connecting piece.

Furthermore, part of the elastic sheet is bent towards one of the first shell and the second shell to form a bent part, the bent part is connected with one of the first shell and the second shell close to the bent part, and the other part of the elastic sheet is detachably connected with one of the first shell and the second shell far away from the bent part through the connecting piece.

Further, the first housing is a yoke;

and/or the second shell is a magnetic yoke.

Furthermore, the first magnet is an electromagnet, the second magnet is a first permanent magnet, and the polarity of the electromagnet is changed so that the polarities of the two ends, close to each other, of the electromagnet and the first permanent magnet are the same or different.

Further, the electro-magnet includes the iron core and twines in the outside coil of iron core, stator module include with the iron core is close to the magnetic conduction board that second magnet one end is connected.

Further, the stator assembly comprises at least one second permanent magnet located in the first accommodating groove, and the polarities of the two ends, close to each other, of the second permanent magnet and the first permanent magnet are the same.

On the other hand, the embodiment of this application provides a screen sound production equipment, screen sound production equipment includes shell, screen and at least one above-mentioned the vibrator, the vibrator is located the shell with the screen encloses establishes the accommodation space of formation in, the second casing with the screen is connected, first casing with the connection can be dismantled to the shell, the vibrator subassembly drives the screen for stator module straight reciprocating motion.

Further, the first shell is clamped, bolted or pinned with the housing.

Further, the housing is formed with a third receiving groove opened toward the screen, and at least a part of the vibrator is located in the third receiving groove.

Further, the housing is formed with a first through hole through which at least a part of the vibrator penetrates.

Further, the first housing is formed with a lug which is detachably connected to the housing.

Further, the outer shell is formed with a fourth receiving groove, and the lug is located in the fourth receiving groove.

Further, the length direction of the vibrator is consistent with the length direction of the screen sound production device, the width direction of the vibrator is consistent with the width direction of the screen sound production device, and the lug is arranged along the width direction of the vibrator.

Further, the first shell is formed with at least one second through-hole relative to the terminal surface of second shell, the second through-hole with first holding tank intercommunication.

Further, the shell includes with the center that the screen interval set up, the screen with the center is connected, first casing with the center can be dismantled and be connected.

Further, screen sound production equipment includes the rigidity piece, the one end of rigidity piece with the screen is connected, the other end of rigidity piece with the second casing is connected, the rigidity piece is followed screen sound production equipment thickness direction's projection area is greater than the second casing is followed screen sound production equipment thickness direction's projection area.

Further, the rigid part is followed the projected area of screen sound production equipment thickness direction is less than or equal to the screen is followed two fifths of the projected area of screen sound production equipment thickness direction.

Further, the screen sound generating device comprises a circuit board for providing an electric signal to the second magnet, and the second magnet drives the first magnet to do linear reciprocating motion according to the electric signal.

Further, the first housing has a notch communicating with the first accommodation groove, and the tab of the second magnet is connected to the circuit board through the notch.

Further, the housing is formed with a positioning groove for accommodating the circuit board.

Further, the screen sound production device comprises a reinforcing plate attached to the end face of the circuit board.

The vibrator that this application embodiment provided, first casing and second casing are connected to the elastic component, utilize elastic component's elastic deformation to avoid interfering the relative stator module linear reciprocating motion of vibrator subassembly, and stator module and vibrator subassembly are installed in the synchronization of being convenient for, solve stator module and vibrator subassembly and install separately, and stator module and vibrator subassembly installation off normal easily appear, influence the technical problem of stator module and vibrator subassembly magnetomotive force conduction, improve the vibration effect. In addition, the elastic component is detachably connected with at least one of the first shell and the second shell, so that the stator component and the vibrator component are detached to facilitate replacement or maintenance under the condition that any one of the stator component and the vibrator component is damaged and needs to be replaced or maintained, the cost can be saved, and the resource waste is avoided. The embodiment of the application further provides a screen sound production device, which comprises the vibrator, the shell and the screen, wherein the vibrator is located in the containing space formed by the shell and the screen in a surrounding mode. The second housing is connected with the screen. The first shell is detachably connected with the shell. First casing can be dismantled with the shell and be connected, is convenient for under the condition of not destroying other structures, quick convenient dismantles stator module from the shell.

Drawings

Fig. 1 is a front view of a vibrator according to an embodiment of the present application, in which a circuit board and a reinforcing plate are shown;

FIG. 2 is a left side view of the vibrator of FIG. 1;

FIG. 3 is a top view of the vibrator of FIG. 1;

FIG. 4 is a bottom view of the vibrator of FIG. 1;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an exploded view of the vibrator of FIG. 1;

fig. 7 is a front view of an elastic sheet according to an embodiment of the present disclosure;

FIG. 8 is a top view of the resilient plate of FIG. 7;

fig. 9 is a schematic structural diagram of a screen sound generating apparatus according to an embodiment of the present application;

FIG. 10 is a schematic diagram of another exemplary screen sound generating apparatus according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of another screen sound generating device according to an embodiment of the present application.

Description of reference numerals:

a screen sound emitting device 1000; the accommodating space 1000 a; a vibrator 100; a stator assembly 10; a first housing 11; a lug 111; the first accommodation grooves 11 a; a second through hole 11 b; notches 11 c; a first magnet, an electromagnet 12; a core 121; a coil 122; a magnetic conductive plate 13; a second permanent magnet 14; a vibrator assembly 20; a second housing 21; the second accommodation grooves 21 a; a second, first permanent magnet 22; an elastic member 30; a spring plate 31; an escape area 31 a; a bent portion 311; a connecting member 32; a housing 200; the third receiving groove 200 a; a first through-hole 200 b; the fourth accommodating groove 200 c; a middle frame 210; an adhesive layer 211; a screen 300; a rigid member 400; a circuit board 500; a reinforcing plate 600; a bolt 700.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application. In the embodiment of the application, A/m refers to ampere per meter in international system of units.

The screen sounding device provided by the embodiment of the application can be any electronic device which is provided with a screen and needs to sound through the screen. Screen-sound devices include, but are not limited to, cell phones, televisions, desktop computers, laptop computers, Personal Digital Assistants (PDAs), portable multimedia players, navigation systems, smart watches, and the like. The following embodiments are described by taking a screen sound generating device as an example of a mobile phone.

Referring to fig. 1 to 6, in one aspect, a vibrator 100 includes a stator assembly 10, a vibrator assembly 20, and a resilient assembly 30. The stator assembly 10 includes a first housing 11 having a first receiving groove 11a and a first magnet 12 positioned in the first receiving groove 11 a. The vibrator assembly 20 is spaced opposite the stator assembly 10. The vibrator assembly 20 includes a second case 21 having a second receiving groove 21a and a second magnet 22 positioned in the second receiving groove 21 a. The first magnet 12 can drive the second magnet 22 to reciprocate linearly so that the vibrator assembly 20 can reciprocate linearly with respect to the stator assembly 10. The elastic member 30 connects the first housing 11 and the second housing 21. The elastic member 30 is detachably coupled to at least one of the first housing 11 and the second housing 21.

The first housing 11 is used to support the stator assembly 10, e.g., the first magnet 12. The second housing 21 serves to support the vibrator assembly 20, for example, a second magnet 22. The second magnet 22 is driven by the first magnet 12 to reciprocate linearly, so that the vibrator assembly 20 is driven to reciprocate linearly relative to the stator assembly 10. The elastic component 30 is connected with the first shell 11 and the second shell 21, the elastic deformation of the elastic component 30 is utilized to avoid interfering the linear reciprocating motion of the vibrator component 20 relative to the stator component 10, the stator component 10 and the vibrator component 20 are conveniently and synchronously installed, the problem that the stator component 10 and the vibrator component 20 are separately installed is solved, the installation deviation of the stator component 10 and the vibrator component 20 is easy to occur, the technical problem of magnetic power conduction of the stator component 10 and the vibrator component 20 is influenced, and the vibration effect is improved. The vibrator assembly 20 is spaced opposite the stator assembly 10 to facilitate relative movement between the vibrator assembly 20 and the stator assembly 10. In addition, the elastic component 30 is detachably connected with at least one of the first housing 11 and the second housing 21, so that the stator assembly 10 and the vibrator assembly 20 can be detached from each other when any one of the stator assembly 10 and the vibrator assembly 20 is damaged and needs to be replaced or maintained, thereby facilitating replacement or maintenance, saving cost and avoiding resource waste.

Specifically, the first magnet 12 may be welded to the inner wall of the first receiving groove 11 a. The first magnet 12 may be adhered to the inner wall of the first receiving groove 11a, for example, by using a back adhesive or a double-sided adhesive. The second magnet 22 may be welded to the inner wall of the second receiving groove 21 a. The second magnet 22 may be adhered to the inner wall of the second receiving groove 21a, for example, by using a back adhesive or a double-sided adhesive.

It should be noted that, the elastic component 30 is detachably connected to at least one of the first housing 11 and the second housing 21, the elastic component 30 may be detachably connected to the first housing 11, the elastic component 30 may be detachably connected to the second housing 21, or the elastic component 30 may be detachably connected to the second housing 21 while the elastic component 30 is detachably connected to the first housing 11. Illustratively, when the elastic assembly 30 is detachably connected with the first housing 11, the elastic assembly 30 is detachably connected with the second housing 21, which is also convenient for detaching the stator assembly 10 and the vibrator assembly 20 from the elastic assembly 30 when the elastic assembly 30 is in elastic fatigue and needs to be replaced or maintained, thereby facilitating replacement or maintenance and saving cost.

In one embodiment, referring to fig. 5 to 8, the elastic member 30 includes an elastic sheet 31 having an escape area 31a and a connecting member 32. The escape area 31a is used to escape the first receiving groove 11a and the second receiving groove 21 a. The elastic piece 31 is detachably connected to at least one of the first housing 11 and the second housing 21 by a connecting piece 32. The escape areas 31a are for avoiding the elastic pieces 31 from interfering with structures in the first receiving groove 11a and the second receiving groove 21a, for example, the first magnet 12 and the second magnet 22.

It is understood that the elastic pieces 31 are detachably connected to at least one of the first and

second housings

11 and 21 by the connection members 32. The elastic sheet 31 may be detachably connected to the first casing 11 through the connecting member 32, or the elastic sheet 31 may be detachably connected to the second casing 21 through the connecting member 32 while being detachably connected to the first casing 11 through the connecting member 32.

In an embodiment, referring to fig. 5 and 6, the elastic sheet 31 is clamped with at least one of the first housing 11 and the second housing 21 through a connecting member 32.

Specifically, the connecting member 32 is a first clamping member, the connecting member 32 is connected with the elastic sheet 31, at least one of the first casing 11 and the second casing 21 has a second clamping member matched with the first clamping member, one of the first clamping member and the second clamping member is a first protrusion, and the other of the first clamping member and the second clamping member is a first groove adapted to the first protrusion. The clamping connection is realized through the matching of the first protrusion and the first groove.

It should be noted that the elastic sheet 31 may be clamped with the first housing 11 through the connecting member 32. Thus, the first housing 11 may have a second snap-in member. The elastic sheet 31 may be clamped with the second housing 21 through a connector 32. Thus, the second housing 21 may have a second snap. The elastic sheet 31 may be clamped with the first housing 11 through the connecting member 32, and the elastic sheet 31 may be clamped with the second housing 21 through the connecting member 32. As such, the first housing 11 and the second housing 21 may each have a second snap.

Specifically, the connecting member 32 and the elastic sheet 31 may be integrally formed. The connecting piece 32 and the elastic piece 31 can also be welded. The connecting member 32 and the elastic sheet 31 may be adhered, for example, by using a back adhesive or a double-sided adhesive. The connecting member 32 may be a plastic member or a metal member. The elastic sheet 31 may be a plastic member or a metal member. For example, the elastic sheet 31 may be a stamped steel sheet.

In another embodiment, not shown, the elastic piece 31 is bolted to at least one of the first housing 11 and the second housing 21 by a connecting piece 32. Specifically, the connecting member 32 is a bolt.

In a further embodiment, not shown, the spring plate 31 is pinned to at least one of the first housing 11 and the second housing 21 by a connecting member 32. Specifically, the connecting member 32 is a pin.

In an embodiment, referring to fig. 7 and 8, a portion of the elastic sheet 31 is bent toward one of the first housing 11 and the second housing 21 to form a bent portion 311. The bent portion 311 is connected to one of the first and

second cases

11 and 21 near the bent portion 311. The other part of the elastic sheet 31 is detachably connected with one of the first housing 11 and the second housing 21 far from the bent portion 311 through a connecting member 32. Specifically, the bending portion 311 may be bent toward the first housing 11, and then the bending portion 311 is connected to the first housing 11, for example, welded, and the other portion of the elastic sheet 31 different from the bending portion 311 is detachably connected to the second housing 21 through the connecting member 32, for example, clamped, bolted, or pinned. Alternatively, the bending portion 311 is bent toward the second housing 21, the bending portion 311 is connected to the second housing 21, for example, welded, and the other portion of the elastic piece 31 different from the bending portion 311 is detachably connected to the first housing 11 through the connecting member 32, for example, clamped, bolted, or pinned. The interference of the vibrator assembly 20 with the linear reciprocating motion of the stator assembly 10 is avoided by the elastic deformation of the bent portion 311. Due to the design, the space occupied by the elastic sheet 31 along the thickness direction of the vibrator 100 is small, so that the thickness of the vibrator 100 is reduced conveniently, and the phenomenon that the interaction between the first magnet 12 and the second magnet 22 is influenced due to the fact that the first magnet 12 and the second magnet 22 are too far away from each other is avoided.

In one embodiment, referring to fig. 5 and 6, the first housing 11 is a magnetic yoke. That is, the first housing 11 has a concentration and magnetic conduction function, and concentrates and guides the magnetic field generated by the first magnet 12 to one end of the first magnet 12 facing the second magnet 22, thereby reducing leakage flux.

Specifically, the first housing 11 is made of a soft magnetic material, including but not limited to industrial pure iron, low carbon steel, silicon steel, ferrite, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy, iron-cobalt alloy, amorphous soft magnetic alloy, or ultra-microcrystalline soft magnetic alloy.

The soft magnetic material is a material which is magnetized when the coercive force is not more than 1000A/m. The soft magnetic material has the characteristics of low coercive force, high magnetic permeability, easy magnetization, easy demagnetization and the like.

In one embodiment, referring to fig. 5 and 6, the second housing 21 is a magnetic yoke. That is, the second housing 21 has a concentration and magnetic conduction function, and concentrates and guides the magnetic field generated by the second magnet 22 to the end of the second magnet 22 facing the first magnet 12, thereby reducing leakage flux.

Specifically, the second casing 21 is made of a soft magnetic material, including but not limited to industrial pure iron, low carbon steel, silicon steel, ferrite, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy, iron-cobalt alloy, amorphous soft magnetic alloy, or ultra-microcrystalline soft magnetic alloy.

In one embodiment, referring to fig. 5 and 6, the first magnet 12 is an electromagnet. The second magnet 22 is a first permanent magnet. The electromagnet 12 changes its polarity so that the polarities of both ends of the electromagnet 12 and the first permanent magnet 22 close to each other are the same or different. That is, the polarity of the end of the second magnet 22 near the first magnet 12 is unchanged, and the polarity of the end of the first magnet 12 near the second magnet 22 may be the same as or different from the polarity of the end of the second magnet 22 near the first magnet 12. Specifically, the end of the second magnet 22 adjacent to the first magnet 12 is a north pole, and the end of the first magnet 12 adjacent to the second magnet 22 may be either a north pole or a south pole; similarly, the end of the second magnet 22 adjacent to the first magnet 12 is south, and the end of the first magnet 12 adjacent to the second magnet 22 may be either north or south. Thus, the polarity of the end of the first magnet 12 close to the second magnet 22 can be changed to make the first magnet 12 and the second magnet 22 repel each other in the same polarity or attract each other in the opposite polarity, so that the second magnet 22 is close to or away from the first magnet 12 under the alternating action of the repelling of the same polarity and the attracting of the opposite polarity; under the repeated action of like-pole repulsion and opposite-pole attraction, the second magnet 22 repeatedly approaches or departs from the first magnet 12, and the second magnet 22 drives the second housing 21 to synchronously approach or depart from the first magnet 12, so that the vibrator assembly 20 can linearly reciprocate relative to the stator assembly 10.

It will be appreciated that the frequency of the linear reciprocating motion of the vibrator assembly 20 relative to the stator assembly 10 can be varied by varying the frequency of the polarity change of the first magnet 12. The amplitude of the vibrator assembly 20 can be varied by varying the strength of the magnetic field generated by the first magnet 12 to vary the force of the first magnet 12 on the second magnet 22 and thus vary the distance of movement of the second magnet 22 relative to the first magnet 12.

In one embodiment, referring to fig. 5 and 6, the electromagnet 12 includes a core 121 and a coil 122 wound outside the core 121. The stator assembly 10 includes a magnetically permeable plate 13 attached to an end of the core 121 proximate the second magnet 22. The coil 122 generates a magnetic field by being energized, and the direction and strength of the magnetic field generated by the coil 122 can be changed by changing the direction and magnitude of the current in the coil 122. The iron core 121 is magnetized by a magnetic field generated by the energized coil 122 to generate a magnetic field, and has a function of reinforcing the magnetic field intensity generated by the energization of the coil 122. The magnetic conductive plate 13 serves to concentrate and guide the magnetic field generated by the core 121 and the magnetic field generated by the coil 122 to one end of the core 121 near the second magnet 22.

Of course, the electromagnet 12 may also include only the coil 122.

Specifically, the core 121 is made of a soft magnetic material, including but not limited to industrial pure iron, low carbon steel, silicon steel, ferrite, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy, iron-cobalt alloy, amorphous soft magnetic alloy, or ultra-crystalline soft magnetic alloy.

Specifically, the coil 122 includes, but is not limited to, a wire-wrapped coil, a multi-strand twisted coil, or a multi-strand and wound coil.

It is understood that the magnetic field generated by electromagnet 12 may be adjusted by changing the number of turns of coil 122, the magnitude of the current flowing in coil 122, and the material of core 121.

In one embodiment, referring to fig. 5 and 6, the stator assembly 10 includes at least one second permanent magnet 14 located in the first receiving groove 11 a. The polarity of the two ends of the second permanent magnet 14 close to the first permanent magnet 22 is the same. That is, the polarity of the end of the second permanent magnet 14 near the first permanent magnet 22 is the same as the polarity of the end of the first permanent magnet 22 near the second permanent magnet 14. Specifically, the end of the first permanent magnet 22 close to the second permanent magnet 14 is a north pole, and the end of the second permanent magnet 14 close to the first permanent magnet 22 is a north pole; similarly, the end of the first permanent magnet 22 adjacent to the second permanent magnet 14 is south, and the end of the second permanent magnet 14 adjacent to the first permanent magnet 22 is south. The two ends of the second permanent magnet 14 and the first permanent magnet 22 close to each other repel each other, so that the first permanent magnet 22 and the first magnet 12 are always kept at a distance.

Specifically, the second permanent magnet 14 is disposed spaced apart from the first magnet 12. Further, a plurality of second permanent magnets 14 may be disposed around the outer circumference of the first magnet 12.

It should be noted that, the first permanent magnet 22 and the second permanent magnet 14 both refer to magnets capable of maintaining their magnetism for a long time, that is, both the first permanent magnet 22 and the second permanent magnet 14 are not easy to lose magnetism, and the first permanent magnet 22 and the second permanent magnet 14 include, but are not limited to, alloy permanent magnet materials, ferrite permanent magnet materials, and the like. The electromagnet 12 is a magnet that generates an electromagnet when energized. Although the permanent magnet may be demagnetized at a certain temperature or under the condition of an external strong magnetic field, the electromagnet may be transformed into a permanent magnet. That is, when the permanent magnet is heated to a temperature exceeding the curie temperature or the permanent magnet is located in an environment of high magnetic field strength opposite to the direction of its magnetic field, the magnetic property of the permanent magnet is reduced or lost, at which point the permanent magnet can no longer maintain its magnetic property. When an electromagnet is located in an environment of high magnetic field strength, the electromagnet becomes a magnet capable of maintaining magnetism for a long period of time, that is, the electromagnet is converted into a permanent magnet. However, the above is only an extreme case, and the first permanent magnet 22 and the second permanent magnet 14 described in the embodiment of the present application only refer to magnets capable of maintaining their magnetism for a long time, and when the magnetism of the first permanent magnet 22 and the second permanent magnet 14 disappears or decreases, that is, the first permanent magnet 22 and the second permanent magnet 14 described in the embodiment of the present application are not used. Similarly, when the electromagnet becomes a magnet that remains magnetic for a long time under extreme conditions, the direction of the magnetic field of the electromagnet can no longer be changed according to the direction of the current, and the electromagnet is no longer the electromagnet 12 according to the embodiment of the present application. The electromagnet described in the embodiment of the application only refers to a magnet which has magnetism when being electrified and has no magnetism when being deenergized.

Referring to fig. 9 to 11, another aspect of the embodiments of the present application provides a screen sound generating device, where the screen sound generating device 1000 includes a housing 200, a screen 300, and at least one vibrator 100 provided in any one of the above embodiments. The vibrator 100 is located in a receiving space 1000a defined by the housing 200 and the screen 300. The second housing 21 is connected to the screen 300. The first housing 11 is detachably connected to the casing 200. The vibrator assembly 20 moves the screen 300 to linearly reciprocate with respect to the stator assembly 10.

The vibrator assembly 20 can linearly reciprocate relative to the stator assembly 10, and because the second housing 21 is connected with the screen 300, the vibrator assembly 20 drives the screen 300 to linearly reciprocate synchronously relative to the stator assembly 10, the screen 300 linearly reciprocates and simultaneously drives air vibration around the screen 200, and longitudinal waves generated by the air vibration are transmitted to human ears, so that the screen 300 can sound. The first housing 11 is detachably connected to the outer casing 200, so that the stator assembly 10 can be quickly and conveniently detached from the outer casing 200 without damaging other structures.

Illustratively, since the stator assembly 10 includes the first magnet 12, the first magnet 12 is an electromagnet, and since the electromagnet generates a magnetic field through a current in the coil 122, the stator assembly 10 is relatively easily damaged during use, the first housing 11 is detachably connected to the outer shell 200, and since the elastic assembly 30 is detachably connected to at least one of the first housing 11 and the second housing 21, the stator assembly 10 can be quickly detached without damaging other structures.

Specifically, the second casing 21 and the screen 300 may be bonded, for example, by a back adhesive or a double-sided adhesive.

In a particular embodiment, at least one of the vibrators 100 is located on the side of the screen sound device 1000 where the camera is located. Illustratively, when the screen sound generating apparatus 1000 is a cellular phone, at least one of the vibrators 100 is located on a side where a camera of the cellular phone is located. The design is more suitable for the use habit of the user, and the vibration position of the screen 300 is closer to the ear of the user, so that the user can listen to the screen conveniently.

It will be appreciated that the screen sound device 1000 may include 1 vibrator 100. The screen sound generating apparatus 1000 may also include a plurality of vibrators 100, for example, 2, 3, 5, or 8, and the like, and the plurality of vibrators 100 may be spaced apart in different areas of the screen 300. Specifically, the plurality of vibrators 100 may vibrate simultaneously to drive different areas of the screen 300 to vibrate simultaneously, so as to enhance the vibration amplitude and increase the volume. It is also possible that only one of the vibrators 100 vibrates, thereby realizing that only the area of the screen 300 where the vibrator 100 is located vibrates, thus facilitating other functions, such as soft keyboard input or other operations, to be realized in other areas of the screen 300.

The screen 300 includes, but is not limited to, a rigid screen or a flexible screen. That is, in the embodiment of the present application, the nature of the screen 300 is not limited.

In an embodiment not shown, the first housing 11 is snapped into the housing 200. Specifically, the first housing 11 has a third engaging member, the housing 20 has a fourth engaging member engaged with the third engaging member, one of the third engaging member and the fourth engaging member is a second protrusion, and the other of the first engaging member and the second engaging member is a second groove adapted to the second protrusion. The first shell 11 and the shell 200 are clamped by the cooperation of the second protrusion and the second groove.

In one embodiment, referring to fig. 9 to 11, the first housing 11 is bolted to the casing 200. That is, the first housing 11 is coupled with the casing 200 by the bolts 700.

In another embodiment, not shown, the first housing 11 is pinned to the outer shell 200. That is, the first housing 11 is connected to the housing 200 by pins.

In an embodiment, referring to fig. 9, the housing 200 is formed with a third receiving groove 200a opening toward the screen 300. At least a portion of the vibrator 100 is positioned in the third receiving groove 200 a. In this manner, the space occupied by the vibrator 100 in the thickness direction of the screen sound generating apparatus 1000 can be reduced, making the screen sound generating apparatus 1000 thinner.

In order to further reduce the space occupied by the vibrator 100 in the thickness direction of the screen sound generating apparatus 1000, in an embodiment, referring to fig. 10 and 11, the housing 200 is formed with a first through hole 200 b. At least a portion of the vibrator 100 penetrates the first through hole 200 b.

In an embodiment, referring to fig. 9 to 11, the first housing 11 is formed with a protrusion 111, and the protrusion 111 is detachably connected to the housing 200. In this way, the volume of the first housing 11 can be reduced, thereby reducing the space occupied by the stator assembly 10.

Specifically, the lugs 111 snap, bolt, or pin into the housing 200.

In an embodiment, referring to fig. 9 and 10, the housing 200 is formed with a fourth receiving groove 200c, and the lug 111 is located in the fourth receiving groove 200 c. In this manner, the space occupied by the stator assembly 10 in the thickness direction of the screen sound generating apparatus 1000 is further reduced.

In one embodiment, referring to fig. 9 to 11, the length direction of the vibrator 100 is consistent with the length direction of the screen sound generating device 1000, the width direction of the vibrator 100 is consistent with the width direction of the screen sound generating device 1000, and the lug 111 is arranged along the width direction of the vibrator 100. Thus, the vibrators 100 are reasonably arranged in the accommodating space 1000a, and the screen sounding device 1000 is more compact in structure. The lugs 111 are coupled to the housing 200, and the lugs 111 are disposed in the width direction of the vibrator 100, so that the structural stability of the vibrator 100 is improved.

Illustratively, when the housing 200 is formed with the first through hole 200b, and at least a portion of the vibrator 100 penetrates through the first through hole 200b, that is, at least a portion of the positioning component 10 penetrates through the first through hole 200b, at this time, the length direction of the vibrator 100 coincides with the length direction of the screen sound generating apparatus 1000, and the width direction of the vibrator 100 coincides with the width direction of the screen sound generating apparatus 1000, the aperture of the first through hole 200b in the width direction of the screen sound generating apparatus 1000 may be minimized, which is beneficial to maintaining the structural stability of the housing 200.

In an embodiment, referring to fig. 3 and 6, at least one second through hole 11b is formed on an end surface of the first housing 11 opposite to the second housing 21. The second through hole 11b communicates with the first receiving groove 11 c. Thus, the stator assembly 10, the vibrator assembly 20 and the elastic assembly 30 may be assembled first, and then the second housing 21 may be connected to the screen 20. For example, the second housing 21 is bonded to the screen 300, for example, by applying a back adhesive to a set position of the second housing 21 on the screen 300, and then bonding the second housing 21, since the back adhesive needs time to set, the support of the jig can be inserted through the second through hole 11b to abut against the vibrator assembly 20 to maintain pressure, and thus after the back adhesive is set, the support is withdrawn, and the second housing 21 is bonded to the screen 300. The second through hole 11b prevents the support of the jig from being directly supported on the first housing 11, and the elastic member 30 from being crushed.

The number of the second through holes 11b may be 1, or may be plural, for example, 2 or 3.

In another embodiment, the vibrator assembly 20 and the screen 300 may be bonded first, that is, the set position of the second housing 21 on the screen 300 may be coated with a back glue, and then the second housing 21 is bonded, and the support of the jig supports the vibrator assembly 20 to maintain pressure, so that after the back glue is solidified, the support is withdrawn, and the second housing 21 and the screen 300 are bonded. And the second housing 21 is detachably coupled by the elastic member 30.

In an embodiment, referring to fig. 9 to 11, the housing 200 includes a middle frame 210 spaced apart from the screen 300, the screen 300 is connected to the middle frame 210, and the first casing 11 is detachably connected to the middle frame 210.

That is, the first housing 11 and the middle frame 210 may be snap-fit, bolted, or pinned.

It is understood that the first housing 11 is detachably connected to the middle frame 210. The third receiving groove 200a, the first through hole 200b, and the fourth receiving groove 200c may be formed on the middle frame 210.

Specifically, referring to fig. 9 to 11, the screen 300 is connected to the middle frame 210, and the screen 300 may be bonded to the middle frame 210 through an adhesive layer 211, where the adhesive layer 211 includes, but is not limited to, a back adhesive layer or a double-sided adhesive layer. As such, the vibration between the screen 300 and the middle frame 210 may be damped using the adhesive layer 211.

In one embodiment, referring to fig. 9-11, the screen sound device 1000 includes a rigid member 400. One end of the rigid member 400 is connected to the screen 300, and the other end of the rigid member 400 is connected to the second housing 21. The projected area of the rigid member 400 in the thickness direction of the screen sound generating device 1000 is larger than the projected area of the second housing 21 in the thickness direction of the screen sound generating device 1000. Therefore, the rigid member 400 is used to increase the contact area between the second casing 21 and the screen 300, so as to increase the vibration area of the second casing 21 for driving the screen 300 to vibrate, and further balance the stress on the screen 300.

The rigid member 400 refers to a member that can be restorably deformed within a predetermined force range. The predetermined force is the force of the second housing 21 acting on the rigid member 400. Illustratively, according to the magnitude of the driving force between the vibrator assembly 20 and the stator assembly 10, a preset force on the rigid member 400 is obtained, and the rigid member 400 can be restored to deform within the preset force range, that is, the rigid member 400 is stressed within a range less than or equal to the preset force, the rigid member 400 is elastically deformed, and the rigid member 400 can be restored to deform when the force disappears.

It can be understood that, since the rigid member 400 needs to withstand the force from the second housing 21, the rigid member 400 has a certain strength to prevent the rigid member 400 from being damaged within a predetermined force range.

The rigid member 400 includes, but is not limited to, metals, biocomposites, graphene, and the like. Illustratively, the rigid member 400 is a steel sheet.

Specifically, an insulating layer may be disposed on the rigid member 400 to reduce the influence of the rigid member 400 on the screen 300.

In one embodiment, referring to fig. 9 to 11, a projection area of the rigid member 400 along the thickness direction of the screen sound generating apparatus 1000 is less than or equal to two fifths of a projection area of the screen 300 along the thickness direction of the screen sound generating apparatus 1000. That is, the projected area of the rigid member 400 in the thickness direction of the screen sound generating apparatus 1000 is S, and the projected area of the screen 300 in the thickness direction of the screen sound generating apparatus 1000 is S ', where S ≦ 2/5S'. Therefore, the vibration effect of the screen 300 is prevented from being influenced by the overlarge area of the rigid member 400.

In one embodiment, referring to fig. 1-6, the screen sound device 1000 includes a circuit board 500 for providing an electrical signal to the second magnet 22. The second magnet 22 drives the first magnet 12 according to an electric signal. That is, the second magnet 22 is electrically connected to the circuit board 500, and the second magnet 22 drives the first magnet 12 to reciprocate linearly according to an electrical signal provided from the circuit board 500. Specifically, the circuit board 500 may provide an alternating current to change the magnetic field direction of the second magnet 22 such that the polarities of the two ends of the second magnet 22 and the first magnet 12 close to each other are the same or different. Thus, under the repeated action of like poles repelling each other and opposite poles attracting each other, the two ends of the second magnet 22 close to the first magnet 12, the second magnet 22 is close to or far away from the first magnet 12, and thereby the second magnet 22 linearly reciprocates relative to the first magnet 12.

In one embodiment, referring to fig. 6, the first housing 11 has a notch 11c communicating with the first receiving groove 11 a. The tab of the second magnet 22 is connected to the circuit board 500 through the notch 11 c. The design is convenient for wiring. Specifically, the tabs of the second magnet 22 are soldered to the pads of the circuit board 500.

In one embodiment, the housing 200 is formed with a positioning groove (not shown) for receiving the circuit board 500. Thus, not only the circuit board 500 is conveniently and quickly positioned and mounted, but also the second magnet 22 and the circuit board 500 are conveniently and quickly positioned and connected.

In one embodiment, referring to fig. 1 to 6, the screen sound generating apparatus 1000 includes a stiffener 600 attached to an end surface of the circuit board 500. The reinforcing plate 600 serves to reinforce the structural strength of the circuit board 500. In particular, the Circuit board 500 is an FPC (Flexible Printed Circuit), and the structural strength of the Flexible Circuit board is reinforced by the reinforcing plate 600. Specifically, the stiffener 600 may be located in the positioning groove, and the circuit board 500 is located on a side of the stiffener 600 away from the positioning groove. This can not only strengthen the structural strength of the circuit board 500 by the stiffener 600, but also prevent the stiffener 600 from interfering with the connection between the circuit board 500 and other structures.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims

1. A vibrator, comprising:

the elastic assembly comprises an elastic sheet and a connecting piece, the elastic sheet is provided with an avoiding area, the avoiding area is used for avoiding the first accommodating groove and the second accommodating groove, part of the elastic sheet is bent towards one of the first shell and the second shell to form a bent part, the bent part is connected with one of the first shell and the second shell, which is close to the bent part, and the other part of the elastic sheet is detachably connected with one of the first shell and the second shell, which is far away from the bent part, through the connecting piece.

2. The vibrator according to claim 1, wherein the resilient tab is snap-fit, bolted, or pinned to at least one of the first and second housings via the connector.

3. The vibrator according to claim 1, wherein the first housing is a yoke;

and/or the second shell is a magnetic yoke.

4. The vibrator according to any one of claims 1 to 3, wherein the first magnet is an electromagnet, the second magnet is a first permanent magnet, and the electromagnet changes polarity so that the polarities of both ends of the electromagnet adjacent to the first permanent magnet are the same or different.

5. The vibrator according to claim 4, wherein the electromagnet includes an iron core and a coil wound around an outer portion of the iron core, and the stator assembly includes a magnetic conductive plate connected to an end of the iron core adjacent to the second magnet.

6. The vibrator according to claim 4, wherein the stator assembly comprises at least one second permanent magnet located in the first receiving groove, and the polarity of both ends of the second permanent magnet close to the first permanent magnet is the same.

7. The screen sound production equipment is characterized by comprising a shell, a screen and at least one vibrator according to any one of claims 1 to 6, wherein the vibrator is located in a containing space formed by the shell and the screen in a surrounding mode, the second shell is connected with the screen, the first shell is detachably connected with the shell, and the vibrator component drives the screen to do linear reciprocating motion relative to the stator component.

8. The screen sound generating apparatus of claim 7, wherein the first housing is snap-fit, bolted, or pinned to the enclosure.

9. A screen sound generating apparatus according to claim 7 wherein the housing is formed with a third receiving recess opening towards the screen, at least part of the vibrator being located within the third receiving recess.

10. The screen sound generating apparatus of claim 7, wherein the housing is formed with a first through hole through which at least a portion of the vibrator extends.

11. The screen sound generating apparatus of claim 7, wherein the first housing is formed with a lug that is removably connected to the housing.

12. The screen sound generating apparatus of claim 11, wherein the housing is formed with a fourth receiving slot, the lug being located within the fourth receiving slot.

13. The screen sound generating apparatus of claim 12, wherein a length direction of the vibrator coincides with a length direction of the screen sound generating apparatus, a width direction of the vibrator coincides with a width direction of the screen sound generating apparatus, and the lug is disposed along the width direction of the vibrator.

14. The screen sound generating apparatus of claim 7, wherein an end surface of the first housing opposite the second housing is formed with at least one second through hole, the second through hole communicating with the first receiving groove.

15. The screen sound generating apparatus of any one of claims 7 to 14, wherein the housing includes a center frame spaced from the screen, the screen being connected to the center frame, the first housing being detachably connected to the center frame.

16. The screen sound generating device of any one of claims 7 to 14, wherein the screen sound generating device comprises a rigid member, one end of the rigid member is connected with the screen, the other end of the rigid member is connected with the second shell, and a projection area of the rigid member in the thickness direction of the screen sound generating device is larger than a projection area of the second shell in the thickness direction of the screen sound generating device.

17. The screen sound device of claim 16, wherein a projected area of the rigid member in a thickness direction of the screen sound device is less than or equal to two fifths of a projected area of the screen in the thickness direction of the screen sound device.

18. The screen sound device of any one of claims 7 to 14, wherein the screen sound device comprises a circuit board for providing an electrical signal to the second magnet, and the second magnet drives the first magnet to reciprocate linearly according to the electrical signal.

19. The screen sound generating apparatus of claim 18, wherein the first housing has a notch in communication with the first receiving slot, the tab of the second magnet being connected to the circuit board through the notch.

20. The screen sound generating apparatus of claim 19, wherein the housing is formed with a detent for receiving the circuit board.

21. The screen sound device of claim 19, wherein the screen sound device includes a stiffener attached to an end face of the circuit board.