阅读说明：本技术 扬声器及电子设备 (Speaker and electronic equipment ) 是由 陈旭 罗斌 于 2020-04-30 设计创作，主要内容包括：本发明提供一种扬声器及电子设备,其中,扬声器包括配重体,以及依次设置的下壳、中壳、电致振动片和球顶；所述下壳、所述中壳以及所述电致振动片配合形成容置腔体,所述配重体设置于所述容置腔体内,且与所述电致振动片的第一表面相连接；所述球顶设置于所述电致振动片背离所述配重体的第二表面；当对所述电致振动片施加电压时,所述电致振动片驱动所述球顶移动。上述扬声器的结构中取消了磁钢和线圈结构,避免对扬声器周围的电路和器件产生磁场干扰,净化了扬声器周围的电路和器件的工作环境。(The invention provides a loudspeaker and electronic equipment, wherein the loudspeaker comprises a counterweight body, and a lower shell, a middle shell, an electric vibrating piece and a dome which are sequentially arranged; the lower shell, the middle shell and the electric vibrating reed are matched to form an accommodating cavity, and the counterweight body is arranged in the accommodating cavity and is connected with the first surface of the electric vibrating reed; the ball top is arranged on a second surface, away from the counterweight body, of the electric vibrating reed; when voltage is applied to the electric vibration sheet, the electric vibration sheet drives the ball top to move. The structure of the loudspeaker cancels the magnetic steel and coil structure, thereby avoiding the magnetic field interference on the circuits and devices around the loudspeaker and purifying the working environment of the circuits and devices around the loudspeaker.)

1. A loudspeaker is characterized by comprising a counterweight body, and a lower shell, a middle shell, an electrogenerated vibrating piece and a dome which are sequentially arranged;

the lower shell, the middle shell and the electric vibrating reed are matched to form an accommodating cavity, and the counterweight body is arranged in the accommodating cavity and is connected with the first surface of the electric vibrating reed;

the ball top is arranged on a second surface, away from the counterweight body, of the electric vibrating reed;

when voltage is applied to the electric vibration sheet, the electric vibration sheet drives the ball top to move.

2. The speaker of claim 1, wherein the electric vibrating reed is a ring-shaped structure having a first through hole, and the dome covers the first through hole.

3. The loudspeaker of claim 2, wherein the weight body is an annular structure with a second through hole, and the first through hole and the second through hole are distributed oppositely.

4. The speaker of claim 1, wherein the electric vibrating plate is an ion conducting vibrating plate;

when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the ball top to move along a first direction;

when the voltage applied to the ion conduction vibration plate is a second voltage, the ion conduction vibration plate drives the ball top to move along a second direction;

wherein the first voltage and the second voltage are opposite in polarity, and the first direction is opposite to the second direction.

5. The speaker as claimed in claim 4, wherein when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the ball top to move a first distance in a first direction;

when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the ball top to move a second distance along the first direction;

the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first distance is different from the second distance.

6. The speaker as claimed in claim 4, wherein when the voltage applied to said ion conduction vibration plate is a first voltage, said ion conduction vibration plate drives said ball top to move in a first direction at a first rate;

when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the ball top to move along a first direction at a second speed;

the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.

7. The loudspeaker of claim 1, wherein the electric trembler has a first region, a second region and a third region;

the counterweight body is arranged in a first area of the electric vibrating reed, the electric vibrating reed is connected with the middle shell through a second area, and the third area is located between the first area and the second area;

wherein the third region of the electric vibrating piece is recessed in a direction toward the lower case, or the third region of the electric vibrating piece is recessed in a direction away from the lower case.

8. The loudspeaker of claim 1, wherein the middle shell is opened with a third through hole, and a gap is formed between the counterweight body and the middle shell.

9. The loudspeaker of claim 8, wherein the third through hole is a sinker jack, and the sinker jack of the sinker jack is located at an end of the middle shell away from the dome, and in the moving direction of the dome, the projections of the dome and the counterweight are located within the projection of the sinker jack.

10. The loudspeaker of claim 9, wherein the height of the counterweight is greater than half the height of the countertop port and the height of the counterweight is less than the height of the countertop port.

11. The speaker of claim 1, further comprising a diaphragm support surrounding the electrogenerated diaphragm, wherein the electrogenerated diaphragm is fixedly connected to the middle case through the diaphragm support.

12. An electronic device, characterized in that it comprises a loudspeaker according to any one of claims 1-11.

Technical Field

The present invention relates to the field of electronic devices, and in particular, to a speaker and an electronic apparatus.

Background

At present, the main stream speaker is realized by the following principle: when a current-carrying conductor passes through a magnetic field, a force is applied, the direction of the force is perpendicular to the direction of current and the direction of the magnetic field, and the magnitude of the force is in direct proportion to the current, the length of a lead and the magnetic flux density. The loudspeaker includes magnet steel, voice coil loudspeaker voice coil and vibrating diaphragm, and when inputing alternating current to the voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil receives an alternating driving force to produce alternating motion, drive the vibrating diaphragm vibration, promote the air repeatedly, make the loudspeaker sound production.

Because the loudspeaker comprises the magnetic steel and the coil, the magnetic field generated by the magnetic steel and the coil can generate interference on devices around the loudspeaker.

Disclosure of Invention

The embodiment of the invention provides a loudspeaker and electronic equipment, and aims to solve the problem that magnetic fields generated by magnetic steel and coils of the existing loudspeaker can interfere with devices around the loudspeaker.

To solve the above problem, the embodiment of the present invention is implemented as follows:

the embodiment of the invention provides a loudspeaker, which comprises a counterweight body, and a lower shell, a middle shell, an electric vibrating piece and a dome which are sequentially arranged;

the lower shell, the middle shell and the electric vibrating reed are matched to form an accommodating cavity, and the counterweight body is arranged in the accommodating cavity and is connected with the first surface of the electric vibrating reed;

the ball top is arranged on a second surface, away from the counterweight body, of the electric vibrating reed;

when voltage is applied to the electric vibration sheet, the electric vibration sheet drives the ball top to move.

Furthermore, the electric vibrating sheet is an annular structural member provided with a first through hole, and the ball top covers the first through hole.

Furthermore, the counterweight body is an annular structural member provided with a second through hole, and the first through hole and the second through hole are distributed oppositely.

Further, the electric vibrating plate is an ion conduction vibrating plate;

when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the ball top to move along a first direction;

when the voltage applied to the ion conduction vibration plate is a second voltage, the ion conduction vibration plate drives the ball top to move along a second direction;

wherein the first voltage and the second voltage are opposite in polarity, and the first direction is opposite to the second direction.

Further, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the ball top to move a first distance along a first direction;

when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the ball top to move a second distance along the first direction;

the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first distance is different from the second distance.

Further, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the ball top to move along a first direction at a first speed;

when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the ball top to move along a first direction at a second speed;

the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.

Further, the electric vibrating piece has a first region, a second region and a third region;

the counterweight body is arranged in a first area of the electric vibrating reed, the electric vibrating reed is connected with the middle shell through a second area, and the third area is located between the first area and the second area;

wherein the third region of the electric vibrating piece is recessed in a direction toward the lower case, or the third region of the electric vibrating piece is recessed in a direction away from the lower case.

Furthermore, the middle shell is provided with a third through hole, and a gap is formed between the counterweight body and the middle shell.

Furthermore, the third through hole is a sinking platform hole, a sinking platform of the sinking platform hole is positioned at one end, far away from the top of the ball, of the middle shell, and in the moving direction of the top of the ball, the projections of the top of the ball and the counterweight body are both positioned in the projection of the sinking platform hole.

Further, the height of the counterweight body is greater than half of the height of the counter sink hole, and the height of the counterweight body is less than the height of the counter sink hole.

Furthermore, the loudspeaker further comprises a vibrating plate support, the vibrating plate support is annularly arranged on the electric vibrating plate, and the electric vibrating plate is fixedly connected with the middle shell through the vibrating plate support.

The embodiment of the invention also provides electronic equipment comprising the loudspeaker.

In the embodiment of the invention, the loudspeaker comprises a counterweight body, and a lower shell, a middle shell, an electric vibrating piece and a dome which are sequentially arranged; the lower shell, the middle shell and the electric vibrating reed are matched to form an accommodating cavity, and the counterweight body is arranged in the accommodating cavity and is connected with the first surface of the electric vibrating reed; the ball top is arranged on a second surface, away from the counterweight body, of the electric vibrating reed; when voltage is applied to the electric vibration sheet, the electric vibration sheet drives the ball top to move. The structure of the loudspeaker cancels the magnetic steel and coil structure, thereby avoiding the magnetic field interference on the circuits and devices around the loudspeaker and purifying the working environment of the circuits and devices around the loudspeaker; meanwhile, the loudspeaker is simple in structure and small in occupied space, and the requirement for thinning of electronic equipment can be met.

Drawings

Fig. 1 is a schematic structural diagram of a speaker according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a speaker according to an embodiment of the present invention;

fig. 3 is a schematic partial structural diagram of a speaker according to an embodiment of the present invention;

fig. 4 is a schematic view showing a cation distribution of a vibrating plate according to an embodiment of the present invention;

fig. 5 is a second schematic view of the cation distribution of the vibrating plate according to the embodiment of the invention.

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 some, not all, embodiments of the present invention. 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.

Referring to fig. 1 to fig. 3, the present embodiment provides a speaker, which includes a weight 1, and a lower shell 2, a middle shell 3, an electric vibrating reed 4 and a dome 5, which are sequentially disposed; the lower shell 2, the middle shell 3 and the electric vibrating reed 4 are matched to form an accommodating cavity, and the counterweight 1 is arranged in the accommodating cavity and is connected with the first surface of the electric vibrating reed 4; the dome 5 is arranged on a second surface of the electric vibrating reed 4, which is far away from the counterweight 1; when a voltage is applied to the electric vibrating reed 4, the electric vibrating reed 4 drives the dome 5 to move.

In the above structure, the lower case 2, the middle case 3, and the electric vibrating reed 4 cooperate to form an accommodating cavity, and the counterweight 1 is disposed in the accommodating cavity and connected to the first surface of the electric vibrating reed 4. For example, the weight 1 may be bonded to the first surface by using an adhesive, so that the weight 1 is suspended in the accommodating cavity, and thus, when the electric vibrating reed 4 drives the dome 5 to move, the weight 1 is also driven to move together, and the weight 1 is used to adjust the resonant frequency of the speaker. When a voltage is applied to the electric vibrating reed 4, the electric vibrating reed 4 drives the ball top 5 to move, so that air around the ball top 5 can be driven to vibrate to produce sound.

In the embodiment, the loudspeaker comprises a weight 1, and a lower shell 2, a middle shell 3, an electric vibrating reed 4 and a dome 5 which are arranged in sequence; the lower shell 2, the middle shell 3 and the electric vibrating reed 4 are matched to form an accommodating cavity, and the counterweight 1 is arranged in the accommodating cavity and is connected with the first surface of the electric vibrating reed 4; the dome 5 is arranged on a second surface of the electric vibrating reed 4, which is far away from the counterweight 1; when a voltage is applied to the electric vibrating reed 4, the electric vibrating reed 4 drives the dome 5 to move. In the structure of the loudspeaker in the embodiment, magnetic steel and coil structures are cancelled, so that magnetic field interference on circuits and devices around the loudspeaker is avoided, and the working environment of the circuits and devices around the loudspeaker is purified; meanwhile, the loudspeaker in the embodiment is simple in structure and small in occupied space, and can meet the requirement for thinning of electronic equipment.

Further, the electric field vibration plate 4 is an ion conduction vibration plate, and when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the dome 5 to move along a first direction; when the voltage applied to the ion conduction vibration plate is a second voltage, the ion conduction vibration plate drives the ball top 5 to move along a second direction; the first voltage and the second voltage have opposite polarities, and the first direction and the second direction are opposite, that is, the first direction and the second direction are opposite to each other, so that the ion conduction vibration plate can drive the dome 5 to alternately move along the first direction and the second direction by alternately applying the voltages with opposite polarities to the ion conduction vibration plate, thereby driving the air around the dome 5 to vibrate and generate sound.

The ion conduction membrane is a composite material actuator, such as a soft polymer actuator. Optionally, the ion conduction vibration plate includes a first electrode layer, an ion exchange resin layer, and a second electrode layer stacked in sequence, and the ion exchange resin layer has a polymer electrolyte therein.

The ion conduction vibration plate may be formed by forming a first electrode layer and a second electrode layer on the opposite surfaces of the ion exchange resin by electroless copper plating or gold plating or the like, and the displacement performance is improved by increasing the electrode surface area. By applying a voltage to the vibrating piece 4, cations in the polymer electrolyte move to the cathode side, causing a difference in swelling of the front and back sides of the vibrating piece 4, which causes the vibrating piece 4 to be deformed, and by alternately changing the direction of the voltage applied to the vibrating piece 4, the direction of deformation of the vibrating piece 4 is alternately changed, thereby generating vibration. The vibration amplitude may be 0.1 mm to 10 mm, and the vibration amplitude may be controlled by setting the thickness of the vibration plate 4 and adjusting the magnitude of the current passing through the vibration plate 4.

Fig. 4 is a schematic diagram showing the distribution of cations in the vibrating reed 4 when a positive current is passed through the vibrating reed 4, wherein the cations move to the cathode side of the vibrating reed 4 (i.e. the lower side of the vibrating reed 4 in fig. 4), the vibrating reed 4 moves upward and drives the ball top 5 to move upward, and a in fig. 4 shows the moving direction of the vibrating reed 4.

Fig. 5 is a schematic diagram showing the distribution of cations in the vibrating reed 4 when a negative direction current is passed through the vibrating reed 4, wherein the cations move to the cathode side of the vibrating reed 4 (i.e. the upper side of the vibrating reed 4 in fig. 5), the vibrating reed 4 moves downward and drives the ball top 5 to move downward, and B in fig. 5 shows the moving direction of the vibrating reed 4.

By applying a voltage to the ion conduction vibration plate, cations in the polymer electrolyte of the ion conduction vibration plate move to the cathode side, causing a difference in swelling of the front and back surfaces, so that the ion conduction vibration plate is deformed. When an alternating current is applied to the ion conduction vibration sheet, the ion conduction vibration sheet drives the dome 5 to vibrate back and forth, so that air around the dome 5 is driven to vibrate and sound.

For example, in a scene that the heat dissipation of the electronic device needs to be monitored, the temperature is monitored through a temperature sensor in the electronic device, after a temperature point needing to be dissipated is reached, the electronic device outputs a low-power-consumption electric signal of about 0.05W to the vibrating plate 4, and the energized vibrating plate 4 can vibrate in a reciprocating manner to drive peripheral vibration and sound production, so that a user is reminded that the temperature of the electronic device is high, heat dissipation is needed, and the device is prevented from being damaged.

Under the scene that needs automatic heat dissipation, monitor the temperature through the temperature sensor in the electronic equipment, reach the temperature point that needs the heat dissipation after, electronic equipment exports the low-power consumption signal of telecommunication about 0.05W to trembler 4, and the trembler 4 of circular telegram alright reciprocating vibration to drive peripheral vibration and the sound production, and drive peripheral air flow and dispel the heat.

Further, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the dome 5 to move a first distance along a first direction;

when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the ball top 5 to move a second distance along the first direction;

the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first distance is different from the second distance, for example, the second distance may be greater than the first distance. When the ball top 5 needs to move a larger distance, the ball top 5 can be driven to move a larger distance by applying a larger voltage to the ion conduction vibration plate; when the movement of the dome 5 by a small distance is required, the dome 5 can be driven to move by a small distance by applying a large voltage to the ion conduction vibration plate. There is a correspondence between the magnitude of the voltage applied to the ion conduction vibration plate and the moving distance of the dome 5, and when the distance that the dome 5 needs to move is determined, the magnitude of the voltage applied to the ion conduction vibration plate can be determined based on the correspondence. Of course, in other embodiments of the present invention, the second distance may be less than the first distance.

Further, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the dome 5 to move in a first direction at a first rate;

when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the ball top 5 to move along the first direction at a second speed;

the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate. For example, the second rate may be less than the first rate. When the moving speed of the dome 5 is required to be large, the dome 5 can be driven to move at a large speed by applying a large voltage to the ion conduction vibration plate; when a small moving speed of the dome 5 is required, the dome 5 can be driven to move at a small speed by applying a small voltage to the ion conduction vibration plate. Of course, in other embodiments of the present invention, the second rate may be greater than the first rate. In the present invention, there is a correspondence between the magnitude of the voltage applied to the ion conduction vibration plate and the moving speed of the dome 5, and the magnitude of the voltage applied to the ion conduction vibration plate can be determined based on the correspondence when the speed at which the dome 5 needs to move is determined.

The loudspeaker can comprise two working modes of a sound production mode and a vibration mode, in the sound production mode, the voltage applied to the ion conduction vibration plate can be a fourth voltage with alternating polarity, the voltage value of the fourth voltage is large, the ball top 5 can be driven to move rapidly, high-frequency vibration of the ball top 5 is realized, and accordingly air around the ball top 5 is driven to vibrate to produce sound; in the vibration mode, the voltage applied to the ion conduction vibration plate may be a fifth voltage with alternating polarity, and the voltage value of the fifth voltage is small, so that the movement of the dome 5 is driven, the low-frequency vibration of the dome 5 is realized, and the voltage is reused as a vibration motor.

As shown in fig. 1, the lower shell 2 and the middle shell 3 are fixedly connected, and may be connected by welding, and the lower shell 2 and the middle shell 3 play a supporting role. As shown in fig. 2, the electric vibrating reed 4 is an annular structure with a first through hole, and the dome 5 covers the first through hole. The electric vibrating reed 4 and the dome 5 may be detachably connected, for example, by adhering the electric vibrating reed 4 and the dome 5 with an adhesive, so that the dome 5 can be easily replaced when the dome 5 fails.

Further, the counterweight body 1 is an annular structural member provided with a second through hole, and the first through hole and the second through hole are distributed oppositely. The counterweight body 1 is used for adjusting the resonance frequency of the loudspeaker, the counterweight body 1 has a certain weight, and the weight can be set according to the actual situation, and is not limited herein. The weight 1 may be bonded to the electric vibrating piece 4. The weight body 1 may be rectangular, oval, etc., so that the force of the weight body 1 to which the electric vibrating reed 4 is subjected is uniform.

Further, the electric vibrating reed 4 has a first region, a second region and a third region;

the weight 1 is disposed in a first region of the electric vibrating reed 4, the electric vibrating reed 4 is connected to the middle case 3 through a second region, and the third region is located between the first region and the second region;

wherein the third region of the electric vibrating reed 4 is depressed in a direction toward the lower case 2, or the third region of the electric vibrating reed 4 is depressed in a direction away from the lower case 2.

The first region, the second region and the third region are located on the first surface of the electric vibrating reed 4, and the counterweight 1 is connected with the first region of the electric vibrating reed 4, and specifically can be bonded; the middle shell 3 is connected with the second area of the electric vibrating reed 4, the third area of the electric vibrating reed 4 is sunken along the direction of the lower shell 2, or the third area of the electric vibrating reed 4 is sunken along the direction deviating from the lower shell 2, so that the third area forms a bent radian, and the electric vibrating reed 4 is convenient to drive the ball top 5 to move back and forth under the deformation condition.

As shown in fig. 2, the middle shell 3 is provided with a third through hole, and a gap is formed between the weight body 1 and the middle shell 3, so that the weight body 1 is suspended in the accommodating cavity, and the middle shell 3 is prevented from blocking the movement of the electric vibrating reed 4 when the electric vibrating reed 4 deforms to drive the ball top 5 to move towards the lower shell 2. The counterweight 1 can generate acting force on the electric vibrating reed 4 through self gravity to adjust the resonance frequency of the ball top 5.

Further, the third through hole is a sinking platform hole, and a sinking platform of the sinking platform hole is located at one end of the middle shell 3 far away from the dome 5, and in the moving direction of the dome 5, the projection of the dome 5 and the projection of the counterweight 1 are both located within the projection of the sinking platform hole, so that the counterweight 1 and the dome 5 can move back and forth in the hole of the sinking platform hole. The height of the counterweight body 1 is greater than half of the height of the sinking platform hole, and the height of the counterweight body 1 is less than the height of the sinking platform hole, so that the counterweight body 1 can be suspended in the sinking platform hole and can move along with the movement of the ball top 5.

As shown in fig. 2, the speaker further includes a vibration plate support, the vibration plate support is annularly disposed on the electric vibration plate 4, the electric vibration plate 4 is fixedly connected to the middle case 3 through the vibration plate support, and the vibration plate support can be made of an insulating material with low price, so as to save the usage amount of the electric vibration plate 4 and reduce the cost of the speaker.

In an embodiment of the present application, an electronic device is further provided, where the electronic device includes the speaker in the above embodiment. Because the structure of the loudspeaker is not provided with the magnetic steel and the coil, magnetic field interference can not be generated on circuits and devices around the loudspeaker, and the working environment of the circuits and the devices around the loudspeaker is purified; meanwhile, the loudspeaker is simple in structure and small in occupied space, and the requirement for thinning of electronic equipment can be met.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.