CN210298036U

CN210298036U - Pillow sound box

Info

Publication number: CN210298036U
Application number: CN201921557642.6U
Authority: CN
Inventors: 张华建
Original assignee: Zhejiang Yunya Technology Co ltd
Current assignee: Zhejiang Yunya Technology Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-04-10
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a pillow sound box, which comprises a box body and an ultrasonic loudspeaker, wherein the sound box is suitable for being used under a pillow, and the sound box and the pillow form a closed space so that the pillow is used as a main sound transmission medium; the upper surface of the box body opposite to the ultrasonic loudspeaker is provided with a sound outlet hole, and the sound wave transmission distance between the lower surface of the box body and the sound outlet hole is 5-21 mm. The utility model discloses a sound box is placed and is used under the pillow, both can effectively avoid sound to influence other users on one's side when diffusing all around, can ensure again that the sound that the user passed out in the sound box when using can be received by the user smoothly.

Description

Pillow sound box

Technical Field

The utility model belongs to the audio amplifier field, concretely relates to pillow audio amplifier.

Background

Most of sound waves emitted by the traditional sound box are radiated by 360 degrees and spread towards the periphery in a diffusing manner, so that sharing can be well achieved, but if personal exclusive sharing is to be achieved, the common method is that the user wears earphones to achieve the purpose, but the user feels uncomfortable when wearing the earphones for a long time, and the user feels uncomfortable when lying on the bed.

Chinese patent CN201520516880.8 is a sound box for directional propagation of sound, including box and ultrasonic speaker, ultrasonic speaker is fixed in on the box, the bottom of box is equipped with the bottom plate, it is equipped with buffer pad to press from both sides between ultrasonic speaker and the bottom plate, just be in the box be equipped with the circuit board on the bottom plate, be equipped with on the circuit board: an audio signal input unit for accessing an audio signal; a carrier signal generator for generating an ultrasonic signal; the signal modulation unit is used for loading the audio signal into the ultrasonic signal to generate a modulation signal; the power amplifier is electrically connected between the signal modulation unit and the ultrasonic speaker, and is used for amplifying the modulation signal, transmitting the amplified modulation signal to the ultrasonic speaker and converting the amplified modulation signal into a sound signal by the ultrasonic speaker. The utility model provides a can directionally propagate the audio amplifier of sound, but this utility model's audio amplifier structure is not applicable to all occasions, uses when especially sleeping.

Chinese patent CN201820758312.2 an embedded intelligent natural awakening device of head of a bed, including the head of a bed and awakening the lamp, its characterized in that: awaken up the both ends of lamp and have glued wooden casing, the inside cavity that is equipped with of wooden casing, the cavity internal fixation has bluetooth speaker, the rectangle recess has been seted up to the leading flank of head of a bed, awaken up lamp and wooden casing clearance fit in the rectangle recess, be fixed with the slide on the inner wall parallel with the opening of rectangle recess, the slip joint of slide has wooden rack, the outer end and the fixed meeting of wooden casing of wooden rack, the mounting groove has been seted up to the bottom of rectangle recess, the mounting groove internal fixation has the motor, be connected with wooden gear in the pivot of motor, wooden gear meshes with wooden rack mutually. The utility model discloses an install audio amplifier at the head of a bed that provides must provide installation space in the head of a bed, therefore its service environment receives very big limitation, and the propagation of its sound is still like all directions all around, still exists the problem of disturbing other users on one's side.

Disclosure of Invention

The utility model aims at providing a pillow audio amplifier to the problem that prior art exists, place the audio amplifier and use under the pillow, both can effectively avoid sound to influence other users on one's side when diffusing all around, can ensure again that the sound that the user passed out in the audio amplifier can be received by the user smoothly when using.

In order to achieve the above object, the utility model adopts the following technical scheme:

a pillow sound box comprises a box body and an ultrasonic loudspeaker, wherein the sound box is suitable for being used under a pillow, and the sound box and the pillow form a closed space so that the pillow can be used as a main sound transmission medium; the upper surface of the box body opposite to the ultrasonic loudspeaker is provided with a sound outlet hole, and the sound wave transmission distance between the lower surface of the box body and the sound outlet hole is 5-21 mm.

The sound waves generated by the ultrasonic speaker are transmitted to the outer fabric layer and the pillow core through the sound outlet holes, and the sound waves reach the eardrum of the user after being attenuated to a certain degree to finish the sound transmission because the transmission speed of the sound waves in the solid is higher than that in the air and the distance between the user and the sound box is short; meanwhile, the pillow forms a closed space for the sound box, and sound waves in the sound box cannot be conducted to the periphery through air; the sound wave transmission distance between the lower surface of the box body and the sound outlet hole is 5-21mm, so that the sound wave can be effectively transmitted, and foreign body sensation cannot be brought to a user.

Preferably, the box body comprises an upper shell, a middle shell and a lower shell, and a cavity for accommodating the control device and the ultrasonic speaker is arranged on the middle shell; the control device is electrically connected with the ultrasonic speaker and a key assembly arranged on the outer surface of the box body. The arrangement of the middle shell increases the transverse space on the basis of the resonance of the ultrasonic speaker with the upper shell and the lower shell, so that the sound cavity achieves the best effect; the middle shell is embedded in the upper shell or the lower shell in a buckling mode, the inner sides of the upper shell and the lower shell are provided with opposite screw holes, and the upper shell and the lower shell are connected together through screws; or the middle shell is provided with a through hole, the inner sides of the upper shell and the lower shell are provided with opposite screw holes, and a screw sequentially passes through the screw hole on the lower shell, the through hole on the middle shell and the screw hole on the lower shell to connect the upper shell and the lower shell together; the control device controls the working state of each device by sending a control instruction to each device, the control device further comprises a wireless communication module, the adopted wireless communication mode is Wi-Fi or Bluetooth, the wireless communication module is in communication connection with the mobile terminal and used for receiving the control instruction sent by the mobile terminal and sending the control instruction to the controller, and the controller controls the working state of each device in the sound box through the control instruction.

More preferably, a power supply device electrically connected with the control device is further arranged in the box body, and the power supply device is electrically connected with the ultrasonic speaker, the USB interface arranged on the outer surface of the box body and the key assembly. The power supply device is arranged in the box body, so that the sound box is self-powered, and the inconvenience of external power supply is reduced.

Further preferably, a microphone electrically connected with the power supply device and the control device is arranged on the box body. The voice control pillow comprises a box body, and is characterized in that a microphone containing cavity is formed in the box body, the microphone is placed in the microphone containing cavity and used for receiving voice signals of a user, after the microphone receives the voice signals of the user, the voice signals are converted into electric signals, the similarity between the voice signals and signals prestored in a sound box is compared through a voice identification circuit arranged in a control device, when the similarity is larger than or equal to a preset value, the voice identification circuit generates a result, and a processor in the control device receives the processing result and then controls the sound box to be automatically opened, so that the voice control of the pillow sound box can be effectively realized, and the operation of the sound box is more flexible and simpler. The speech signal may be an entire sentence or word.

Further preferably, an LED lamp electrically connected to the power supply device and the control device is disposed on the middle housing. The LED lamp can be used for indicating the working state of the pillow sound box, and can also twinkle or shine when a timing device arranged in the control device reaches set time, so that the function of waking up a user is realized.

Still further preferably, a light-transmitting ring is arranged on the outer side of the LED lamp, and a diffusion ring is arranged between the LED lamp and the light-transmitting ring. The light-transmitting ring and the diffusion ring are matched to use, so that light rays emitted by the LED are uniform, and bright spots cannot be seen from the outside.

Still further preferably, the middle case is a light guide plate. Light that the LED lamp sent is through the light guide plate transmission makes the light-emitting of LED lamp is more even, thereby reduces in the audio amplifier the quantity of LED lamp and the heat that produces also can reduce the volume of audio amplifier when practicing thrift the cost.

More preferably, a baffle plate covering the sound outlet hole is arranged on the inner side wall of the upper shell, and the baffle plate slides on the inner side wall of the upper shell. The baffle is opened when the pillow audio amplifier is worked, and the baffle is closed when the pillow audio amplifier is standby or the process of shutting down, can effectively reduce when the pillow audio amplifier is out of work foreign matters such as dust, cotton fibre on the fabric get into inside the box, influence the normal work of the inside spare part of box.

The baffle is connected with an output shaft of a motor arranged on the inner side wall of the upper shell, and the motor is electrically connected with the control device and the power supply device. The control device controls the motor to rotate forwards so as to drive the baffle to be opened, and controls the motor to rotate backwards so as to drive the baffle to be closed. The motor is preferably a servo motor.

The baffle is provided with an iron sheet, the upper shell opposite to the iron sheet is provided with an electromagnet, and the electromagnet is electrically connected with the control device and the power supply device. Iron sheets are arranged on two sides of the baffle, electromagnets are arranged on the upper shell opposite to the iron sheets, the control device controls the power supply device to supply power to the electromagnets, the electromagnets are magnetized to attract the iron sheets to move towards the electromagnets, and the opening and closing of the baffle are controlled by the fact that the two electromagnets on the two sides supply power at different times; or one end of the baffle is fixedly connected with an iron sheet, an electromagnet is arranged on the upper shell opposite to the iron sheet, the other end of the baffle is connected with a reset spring arranged on the upper shell, the control device controls the power supply device to supply power to the electromagnet, and the electromagnet attracts the iron sheet to move towards the direction of the electromagnet after having magnetism, so that the baffle is opened; the control device controls the power supply device to cut off the power of the electromagnet, and after the magnetism of the electromagnet disappears, the iron sheet moves towards the opposite direction of the electromagnet under the action of the reset spring, so that the baffle is closed.

Preferably, the bottom surface of the box body is provided with a foot pad. The use of callus on the sole can cushion the vibration of audio amplifier, avoids the audio amplifier to take place unnecessary displacement because of the vibration.

Preferably, the surface of the box body is provided with anti-skid lines. The anti-skid grains are consistent with the long edge profile of the box body and are parallel to each other; the anti-slip lines are arranged, so that the use hand feeling of a user is effectively improved, and the user is prevented from slipping off when holding the hand.

Preferably, a sound guide groove extending from the sound outlet hole to the ultrasonic speaker is formed in the box body. The sound guide groove can effectively strengthen the directional propagation of sound waves and reduce the attenuation of the sound waves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a pillow audio amplifier uses under the pillow, because the enclosure space that the pillow formed, can effectively avoid the sound wave to propagate all around through the air, meanwhile, the propagation speed of sound wave in the solid is greater than the propagation speed in the air, and ultrasonic loudspeaker makes the sound wave can directional propagation in addition, and user's concrete audio amplifier distance is nearer, thereby can effectively guarantee that the user can smoothly hear the sound wave that the audio amplifier sent, ensure the privacy of individual use, can effectively avoid the sound wave to influence other users when propagating all around again;

2. the utility model discloses an audio amplifier, structural design is reasonable, under the condition of ensureing user normal use, can not bring the impression that has the foreign matter under the pillow for the user, has guaranteed the comfort that the user used.

Drawings

Fig. 1 is a schematic view of an assembly structure of a pillow sound box according to embodiments 1-3 of the present invention;

fig. 2 is a schematic view of an assembly structure of a pillow sound box according to embodiments 1-3 of the present invention;

fig. 3 is a schematic view of an electrical connection structure between a control device and each device in a pillow sound box according to embodiment 1 of the present invention;

fig. 4 is a schematic view of an electrical connection structure between a power supply device and each device in a pillow sound box according to embodiment 1 of the present invention;

fig. 5 is a schematic view of an electrical connection structure between a control device and each device in a pillow sound box according to embodiment 2 of the present invention;

fig. 6 is a schematic view of an electrical connection structure between a power supply device and each device in a pillow sound box according to embodiment 2 of the present invention;

fig. 7 is a schematic view of a cross-sectional structure of a baffle plate in a pillow sound box according to embodiment 2 of the present invention (the baffle plate moves inside and outside in the figure);

fig. 8 is a schematic view of an electrical connection structure between a control device and each device in a pillow sound box according to embodiment 3 of the present invention;

fig. 9 is a schematic view of an electrical connection structure between a power supply device and each device in a pillow sound box according to embodiment 3 of the present invention;

fig. 10 is a schematic cross-sectional view of the baffle plate of the pillow sound box according to embodiment 3 of the present invention (the baffle plate moves left and right in the figure);

in the figure: 1. a box body; 11. a USB interface; 12. a sound outlet hole; 13. a key assembly; 14. a microphone; 15. an upper housing; 151. an electromagnet; 16. a middle shell; 17. a lower housing; 171. a foot pad; 18. a baffle plate; 181. iron sheets; 19. a motor; 2. an ultrasonic speaker; 3. a power supply device; 4. a control device; 5. an LED lamp; 6. and (4) screws.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

The pillow sound box in this embodiment will be described with reference to fig. 1 to 4:

a pillow sound box comprises a box body 1 and an ultrasonic loudspeaker 2, wherein the sound box is suitable for being used under a pillow, and the sound box and the pillow form a closed space so that the pillow can be used as a main sound transmission medium; wherein, the upper surface of the box body 1 opposite to the ultrasonic loudspeaker 2 is provided with a sound outlet hole 12, and the sound wave transmission distance between the lower surface of the box body 1 and the sound outlet hole 12 is 16 mm.

The box body 1 comprises an upper shell 15, a middle shell 16 and a lower shell 17, wherein the middle shell 16 is provided with a cavity for accommodating the control device 4 and the two ultrasonic speakers 2; the control device 4 is electrically connected with the ultrasonic loudspeaker 2 and a key assembly 13 arranged on the outer surface of the box body 1;

the box body 1 is also internally provided with a power supply device 3 electrically connected with the control device 4, and the power supply device 3 is electrically connected with the ultrasonic loudspeaker 2, the USB interface 11 arranged on the outer surface of the box body 1 and the key assembly 13;

the middle shell 16 is specifically a light guide plate, an LED lamp 5 electrically connected with the power supply device 3 and the control device 4 is arranged on the middle shell, a light transmitting ring is arranged on the outer side of the LED lamp 5, and a diffusion ring is arranged between the LED lamp 5 and the light transmitting ring; the bottom surface of the box body 1, namely the bottom surface of the lower shell 17 is provided with a foot pad 171; the surface of the box body 1, namely the surface of the upper shell 15 is provided with anti-skid grains.

In the specific implementation:

be equipped with the through-hole on the well casing 16, be equipped with the first screw that runs through on the casing 17 down, be equipped with on the last casing 15 to the inside one end confined of extending of box 1, with the relative second screw that sets up of first screw, thereby the screw 6 passes first screw, through-hole, second screw in proper order and installs upper housing 15, well casing 16, casing 17 down together.

The sound box is turned on through a power switch arranged on the key assembly 13, and at the moment, the LED lamp 5 displays green; the volume is adjusted through a volume key arranged on the key assembly 13, and the played music information is selected through a menu key, the ultrasonic wave loudspeaker 2 transmits sound wave information to the outer layer of the pillow fabric and the pillow inner through the sound outlet hole 12, and the sound wave reaches the eardrum of the ear of a user after being attenuated to complete the sound transmission; and the power switch is pressed again, and the sound box is closed after the LED lamp 5 displays red.

Example 2

The pillow sound box in this embodiment will be described with reference to fig. 1-2 and 5-7:

the present embodiment further includes the following contents on the basis of embodiment 1: a microphone 14 electrically connected with the power supply device 3 and the control device 4 is arranged on the box body 1; a baffle plate 18 for covering the sound outlet hole 12 is arranged on the inner side wall of the upper shell 15, and the baffle plate 18 slides on the inner side wall of the upper shell 15; the baffle 18 is connected with an output shaft of a motor 19 arranged on the inner side wall of the upper shell 15, and the motor 19 is electrically connected with the control device 4 and the power supply device 3.

The specific implementation is basically the same as that of the embodiment 1, and the difference is that: the microphone 14 is placed in a microphone accommodating cavity arranged on the box body 1, the microphone 14 receives a voice signal of a user, the voice signal is converted into an electric signal, and then the voice signal is compared with the similarity of a pre-stored signal in the voice box through a voice recognition circuit arranged in the control device 4, wherein when the similarity is greater than 80%, the voice recognition circuit generates a result, a processor in the control device 4 receives the processing result and then controls the voice box to be automatically opened, the LED lamp 5 is bright green, and the baffle 18 slides under the action of the motor 19, so that the sound outlet hole 12 is unobstructed; the control device 4 controls the sound box to automatically start playing and start playing again from the place where the last playing was interrupted.

When the sound box needs to be closed, the microphone 14 receives the voice signal and then compares the voice signal, and according to the comparison result, the control device 4 controls the sound box to be closed, the LED lamp 5 is bright red, and the baffle 18 slides under the action of the motor 19, so that the sound outlet hole 12 is shielded.

Example 3

The pillow sound box in the embodiment will be described with reference to fig. 1-2 and 8-10:

the present embodiment further includes the following contents on the basis of embodiment 1: a microphone 14 electrically connected with the power supply device 3 and the control device 4 is arranged on the box body 1; a baffle plate 18 for covering the sound outlet hole 12 is arranged on the inner side wall of the upper shell 15, and the baffle plate 18 slides on the inner side wall of the upper shell 15; both ends of baffle 18 all are equipped with iron sheet 181, all are equipped with electro-magnet 151 on the upper casing 15 relative with iron sheet 181, and two electro-magnets 151 all are connected with controlling means 4, power supply unit 3 electricity.

The specific embodiment is substantially the same as example 1, except that: the microphone 14 is placed in a microphone accommodating cavity arranged on the box body 1, after the microphone 14 receives a voice signal of a user, the voice signal is converted into an electric signal, and the similarity between the voice signal and a pre-stored signal in the sound box is compared through a voice identification circuit arranged in the control device 4, wherein when the similarity is more than 80%, the voice identification circuit generates a result, a processor in the control device 4 receives the processing result and controls the sound box to be automatically started, the LED lamp 5 is bright green, the control device 4 controls the power supply device 3 to supply power to the left electromagnet 151, and the baffle 18 slides leftwards on the inner side wall of the upper shell 15 under the attraction effect of the left electromagnet 151 so as to open the baffle 18; after the sound box is closed, the control device 4 controls the power supply device 3 to supply power to the right electromagnet 151 and cut off the power supply to the left electromagnet 151, and the baffle 18 slides rightward on the inner side wall of the upper housing 15 under the attraction of the right electromagnet 151 to close the baffle 18.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pillow sound box comprises a box body and an ultrasonic loudspeaker, and is characterized in that the sound box is suitable for being used under a pillow, and the sound box and the pillow form a closed space so that the pillow can be used as a main sound transmission medium; the upper surface of the box body opposite to the ultrasonic loudspeaker is provided with a sound outlet hole, and the sound wave transmission distance between the lower surface of the box body and the sound outlet hole is 5-21 mm.

2. The pillow sound box of claim 1, wherein the box body comprises an upper shell, a middle shell and a lower shell, and a cavity for accommodating the control device and the ultrasonic speaker is arranged on the middle shell; the control device is electrically connected with the ultrasonic speaker and a key assembly arranged on the outer surface of the box body.

3. The pillow sound box of claim 2, wherein a power supply device electrically connected with the control device is further disposed in the box body, and the power supply device is electrically connected with the ultrasonic speaker, the USB interface disposed on the outer surface of the box body, and the key assembly.

4. The pillow sound box of claim 3, wherein a microphone electrically connected with the power supply device and the control device is arranged on the box body.

5. The pillow sound box of claim 3, wherein the middle shell is provided with an LED lamp electrically connected with the power supply device and the control device.

6. The pillow sound box of claim 5, wherein a light-transmitting ring is disposed outside the LED lamp, and a diffuser ring is disposed between the LED lamp and the light-transmitting ring.

7. The pillow sound box of claim 5, wherein the middle shell is a light guide plate.

8. The pillow sound box of claim 2, wherein a baffle plate covering the sound outlet hole is provided on an inner side wall of the upper case, and the baffle plate slides on the inner side wall of the upper case.

9. The pillow sound box of any one of claims 1-8, wherein a foot pad is provided on the bottom surface of the box.

10. The pillow sound of any one of claims 1-8, wherein the surface of the box is provided with anti-slip threads.