CN211791298U - Power adapter - Google Patents

Abstract

The application discloses power adapter relates to charger technical field. The specific implementation scheme is as follows: the power adapter comprises a shell, the shell is provided with a containing cavity, a sound production unit, a circuit board and an alternating current/direct current conversion board are arranged in the containing cavity, the sound production unit, the circuit board and the alternating current/direct current conversion board are sequentially stacked in the thickness direction of the circuit board, and the circuit board is respectively and electrically connected with the sound production unit and the alternating current/direct current conversion board; wherein, the circuit board is provided with a wireless communication component. The application provides a power adapter can realize charging and audio amplifier function simultaneously, and the practicality is better.

Description

Power adapter

Technical Field

The embodiment of the application relates to the technical field of chargers in electric equipment, in particular to a power adapter.

Background

The power adapter is also called an external power supply, is a power supply conversion device for small portable electronic equipment and electronic appliances, and is commonly used in small electronic products such as mobile phones, liquid crystal displays, notebook computers and the like.

The power adapter generally comprises components such as a shell, a transformer, an inductor, a capacitor, an integrated control circuit, a printed circuit board and the like. One end of the power adapter is plugged in an external power supply, and can be divided into a wall-plugging type and a desktop type according to the connection mode, and the other end of the power adapter is connected with the electronic equipment; the working principle of the charging device is that alternating current input of an external power supply is converted into direct current output, and then the electronic equipment is charged.

However, the conventional power adapter generally has only a charging function, and the function is relatively single.

SUMMERY OF THE UTILITY MODEL

The application provides a power adapter, power adapter can realize simultaneously charging and bluetooth speaker function, and the practicality is better.

The application provides a power adapter, which comprises a shell, a sound generation unit, a circuit board and an alternating current/direct current conversion board, wherein the shell is provided with an accommodating cavity, the sound generation unit, the circuit board and the alternating current/direct current conversion board are arranged in the accommodating cavity, the sound generation unit, the circuit board and the alternating current/direct current conversion board are sequentially arranged in a stacked mode along the thickness direction of the circuit board, and the circuit board is respectively and electrically connected with the sound generation unit and the alternating current/direct current conversion board; wherein, the circuit board is provided with a wireless communication component.

In a possible embodiment, at least one microphone is further disposed in the accommodating cavity, and the microphone is electrically connected with the circuit board.

In one possible embodiment, the number of the microphones is two, and the two microphones are symmetrically arranged on two sides of the pronunciation unit.

In a possible embodiment, the casing is provided with a sound pick-up hole which is through, and the sound pick-up hole corresponds to the microphone.

In a possible embodiment, a partition is further disposed in the receiving cavity, and the partition is disposed between the circuit board and the ac/dc converter board.

In a possible embodiment, at least one USB interface is further disposed on the housing, and the USB interface is electrically connected to the circuit board.

In a possible implementation manner, at least one USB interface is disposed corresponding to the partition board, an avoiding groove is formed in an end portion of the partition board corresponding to the USB interface, and a chip in the USB interface is located in the avoiding groove.

In a possible implementation mode, the alternating current/direct current conversion plate is provided with a pin extending towards the circuit board, the partition plate is provided with an avoiding hole for avoiding the pin, and the pin penetrates through the avoiding hole to be connected with the circuit board.

In one possible embodiment, the housing comprises an upper shell and a lower shell, the upper shell is provided with a bottom wall and side walls surrounding the bottom wall, and the lower shell covers an opening surrounded by the side walls; wherein, the AC/DC conversion board is propped against the inner wall of the lower shell.

In one possible embodiment, a power plug is connected to the ac/dc converter board, and the lower case is provided with an extension hole through which the power plug extends to the outside of the lower case.

In a possible implementation mode, a plurality of sound outlet holes are further formed in the upper shell, and the sound outlet holes are communicated with the accommodating cavity.

In a possible embodiment, the bottom wall and the side wall of the upper shell are distributed with sound holes.

In a possible embodiment, the upper shell is further provided with an indicator light and a key, the indicator light is used for indicating the working state of the power adapter or the working state of the sound generating unit, and the key is used for controlling the working state of the sound generating unit.

In one possible embodiment, the sound generation unit comprises a sound cavity and a loudspeaker, and the loudspeaker is mounted on the sound cavity.

In one possible embodiment, the wireless communication assembly includes a bluetooth antenna.

According to the power adapter, the sound generation unit is arranged in the accommodating cavity of the shell and is directly integrated into the adapter, so that the portable adapter has a charging function and a sound box function, and the power adapter is richer in function and higher in practicability; in addition, through making pronunciation unit, circuit board and interchange DC conversion board stack gradually the setting along the thickness direction of circuit board for the setting of each part is more reasonable in the adapter, and occupation space is littleer, can reduce the volume of shell, and then makes power adapter smaller and more exquisite, portable can save space, uses more in a flexible way.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:

fig. 1 is an exploded view of a power adapter provided in an embodiment of the present application;

FIG. 2 is an exploded view of another power adapter provided in accordance with an embodiment of the present application;

FIG. 3 is a cross-sectional view of a power adapter provided in an embodiment of the present application;

fig. 4 is a six-view diagram of a power adapter provided in an embodiment of the present application.

Description of reference numerals:

1-a housing; 11-upper shell; 111-a bottom wall; 112-a side wall; 113-sound pickup hole; 114-sound outlet; 115-an indicator light; 116-keys; 12-a lower shell; 121-an outlet hole; 2-a sound unit; 3-a circuit board; 4-AC/DC converter plate; 41-pin; 42-power plug; 5-a separator; 51-avoidance slots; 52-avoiding holes; 6-a microphone; 7-USB interface; 71-chip.

Detailed Description

The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

A power adapter, also called a portable adapter or a charger, is a device for charging small portable electronic devices and electronic appliances, and is commonly used in small electronic products such as mobile phones, liquid crystal displays, and notebook computers.

An existing power adapter, such as a mobile phone charger, is usually used only as a charger, that is, the power adapter only has a function of charging adaptation, but does not have other functions.

Therefore, the power adapter has a single function, for example, the mobile phone charger has no other function during charging the mobile phone, and the mobile phone charger has no other utilization value.

Therefore, the embodiment of the present application provides a power adapter to solve the problem of single function of the power adapter.

Example one

Fig. 1 is an exploded view of a power adapter according to an embodiment of the present application. As shown in fig. 1, the present embodiment provides a power adapter, which includes a housing 1, where the housing 1 is a hollow casing, and a receiving cavity is formed inside the housing 1, and is used for receiving various components of the power adapter.

It should be understood that the present embodiment is not limited to specific types of power adapters, for example, the power adapter may be a charger for a mobile phone, or may also be a charger for other electronic products such as a tablet computer, a notebook computer, a set-top box, a router, or a digital camera.

The present embodiment also has no limitation on the specific shape and the specific size of the housing 1 of the power adapter according to the design requirements of different electronic products. For example, the housing 1 of the power adapter may be square, rectangular, cylindrical or some other irregular shape.

In the power adapter of the present embodiment, a sound generation unit 2, a circuit board 3, and an ac/dc converter board 4 are provided in the accommodation chamber of the housing 1.

The sound generation unit 2 serves as a body of the sound box, so that the power adapter has the function of the sound box. For example, the sound generation unit 2 is communicatively connected to an electronic device such as a mobile phone via a wireless communication protocol, and the mobile phone can control the sound generation unit 2 to play music.

In the following, the electronic device is taken as a mobile phone, and the power adapter is taken as a mobile phone charger for exemplary explanation.

Therefore, when the mobile phone is charged, the power adapter has the function of playing audio besides the charging function, so that a user can listen to music, a novel and the like when the mobile phone is charged, and the charging process is not boring any more.

Or, after the charging of the mobile phone is completed, the sound generation unit 2 can remind the user of the completion of the charging through a prompt tone, so that the user can stop continuously charging the mobile phone in time, the mobile phone is prevented from being overcharged, and the performance of the mobile phone is prevented from being reduced.

Therefore, the accommodating cavity of the shell is internally provided with the sound generation unit 2, so that the power adapter realizes the function of the sound box, and when the power adapter is connected with an external power supply, the functions of playing audio, sending prompt tone and the like can be realized while the mobile phone is charged. Therefore, the power adapter is more abundant, and the practicability of the power adapter is enhanced.

Specifically, the sound generation unit 2 includes a sound cavity and a speaker, and the speaker is mounted on the wall of the sound cavity. The sound wave is transmitted by compressing or stretching air through vibration of the drum membrane, so that the loudspeaker emits sound; the interference of radiation sound waves in front and at the back of the loudspeaker is eliminated by arranging the sound cavity body, so that the sound is prevented from being short-circuited, the sound is corrected, and the noise is prevented.

The circuit board 3 disposed in the housing is one of the important components of the power adapter for realizing its charging function, and in some embodiments, one side surface of the circuit board 3 may have circuit wiring, and the other side surface may be disposed with components connected to the circuit, such as the chip 71, the resistor, the capacitor, and the like.

The circuit board 3 is electrically connected with the pronunciation unit 2, and the pronunciation unit 2 can be controlled to work through the circuit board 3, so that the power adapter realizes the function of a sound box.

The circuit board 3 is provided with a wireless communication component, and wireless communication connection between the pronunciation unit 2 and the electronic device is realized through the wireless communication component, so that wireless communication signal propagation can be carried out between the pronunciation unit 2 and the electronic device.

In a specific implementation, the wireless communication assembly may include a bluetooth antenna, the bluetooth antenna is an important necessary assembly for transmitting and receiving electromagnetic wave energy in wireless communication, the bluetooth matching connection between the mobile phone and the power adapter may be realized by providing the bluetooth antenna on the circuit board 3, and then the sound generation unit 2 may be controlled to play audio by a bluetooth chip built in the mobile phone.

The shape, size and material of bluetooth antenna do not do specific restrictions in this embodiment, to the power adapter of different electronic products, can design the bluetooth antenna of different shapes, size and material to make bluetooth antenna satisfy corresponding power adapter's demand can.

An AC/DC converter board 4(AC/DC converter board) is also provided in the receiving cavity of the housing 1 of the power adapter. When the power adapter charges the electronic equipment, one end of the power adapter is connected with an external power supply; the other end is connected with the electronic equipment, and an alternating current/direct current conversion plate 4 is arranged in the shell of the electronic equipment, and an alternating current power supply provided by an external power supply is converted into a direct current power supply required by the electronic equipment by using the alternating current/direct current conversion plate 4.

For example, when the mobile phone charger is connected to a wall socket or a patch board, the ac/dc converter board 4 converts 220V ac voltage of the external power supply into 5V dc voltage required by the mobile phone battery.

The ac/dc converter 4 is connected to the circuit board 3, converts an ac signal into a stable dc signal through the ac/dc converter 4, transmits the dc signal to the circuit board 3, and charges the mobile phone through a current signal flowing through the circuit board 3.

In addition, in this embodiment, the bluetooth sound box function of the power adapter is realized through the electrical connection between the sound generation unit 2 and the circuit board 3. When the power adapter is connected with an external power supply, the current can enable the pronunciation unit 2 to work through the pronunciation unit 2, the pronunciation unit 2 does not need to be charged additionally, and the charging function of the power adapter and the function of the Bluetooth sound box can be synchronously realized.

In order to make the layout of the power adapter more reasonable and the structure more compact, in the embodiment, the sound generating unit 2, the circuit board 3 and the ac/dc converter plate 4 are sequentially stacked in the thickness direction of the circuit board 3.

Through pronunciation unit 2, circuit board 3 and interchange/direct current change-over board 4 range upon range of setting in proper order, and the range upon range of direction of three is the thickness direction of circuit board 3, and pronunciation unit 2, circuit board 3 and interchange/direct current change-over board 4 whole occupation's space is less like this, and the arrangement in the holding intracavity of shell 1 is compacter, is favorable to reducing the volume of shell 1 to reduce power adapter's volume.

Therefore, the power adapter is more miniaturized and better in portability, the space of a household socket or a wall socket can be saved, and the power adapter is more convenient to connect with an external power supply.

In addition, the pronunciation unit 2 and the AC/DC converter plate 4 are respectively arranged at two sides of the circuit board 3, so that the pronunciation unit and the AC/DC converter plate are respectively connected with the circuit board 3 conveniently, and the AC/DC converter plate 4 is arranged closer to one side of the shell 1, so that the AC/DC converter plate 4 is connected with an external power supply conveniently; similarly, the sound generation unit 2 is disposed closer to the other side of the housing 1, so that the sound generated by the sound generation unit 2 can be transmitted to the outside of the power adapter more quickly, and the sound of the sound generation unit 2 heard from the outside is clearer.

According to the power adapter provided by the embodiment, the sound generation unit is arranged in the accommodating cavity of the shell and is directly integrated into the adapter, so that the portable adapter has the functions of charging and a Bluetooth sound box, and the power adapter is richer in function and stronger in practicability; in addition, through making pronunciation unit, circuit board and interchange DC conversion board stack gradually the setting along the thickness direction of circuit board for the setting of each part is more reasonable in the adapter, and occupation space is littleer, can reduce the volume of shell, and then makes power adapter smaller and more exquisite, portable can save space, uses more in a flexible way.

Example two

FIG. 2 is an exploded view of another power adapter provided in accordance with an embodiment of the present application; FIG. 3 is a cross-sectional view of a power adapter provided in an embodiment of the present application; fig. 4 is a six-view diagram of a power adapter provided in an embodiment of the present application.

As shown in fig. 2, on the basis of the power adapter provided in the first embodiment, in the power adapter provided in this embodiment, at least one microphone 6 may be further disposed in the accommodating cavity of the housing 1, and the microphone 6 is electrically connected to the circuit board 3.

By providing the microphone 6, a sound signal transmitted from the outside to the power adapter can be converted into an electric signal, so that the sound generation unit 2 can be controlled by the circuit board 3. In this way, the user can control the pronunciation unit 2 by voice, for example, the user can instruct the pronunciation unit 2 to start, close or pause the operation of playing audio, so as to realize the function of intelligently controlling the pronunciation unit 2.

The power adapter provided by the embodiment can be used as a power adapter, can be used as an intelligent sound box when being connected with an external power supply, and is used for controlling the operation of the sound generation unit 2 in the shell 1 through voice.

In addition, compare with current stereo set, the power adapter of this embodiment only need peg graft and can realize intelligent stereo set function on wall socket or plug wire row, and need not to use power cord connection socket, need not to set up the power cord, therefore need not set up reason line packaging space.

In this embodiment, the number of the microphones 6 connected to the circuit board 3 in the housing 1 is not limited, and only one microphone 6 may be provided, or a plurality of microphones 6 may be provided, as long as the microphones 6 can accurately convert external sound signals into electrical signals to control the sound generating unit 2; further, the position of the microphone 6 in the housing chamber is also not particularly limited.

In one embodiment, as shown in fig. 2, the number of the microphones 6 may be two, and two microphones 6 may be symmetrically disposed on both sides of the sound generating unit 2.

Through setting up two microphones 6, the vibration of absorption external sound that can be better is the signal of telecommunication with sound signal conversion, can not occupy too much space again simultaneously, can make power adapter keep less volume.

On the basis, the two microphones 6 are symmetrically arranged on the two sides of the pronunciation unit 2, the microphone 6 arranged on one side can better absorb and identify the sound transmitted from the side, and the microphone 6 on the other side can better absorb and identify the sound transmitted from the other side, so that the sound transmitted from the two sides of the power adapter can be better transmitted by the microphone 6, and the better transmission performance is achieved.

Taking the sound generation unit 2 as a rectangular parallelepiped as an example, the sound generation unit 2 may be disposed on one side of the circuit board 3 along a width direction thereof, the two microphones 6 may be symmetrically disposed on both sides of the sound generation unit 2 along a length direction or a width direction of the sound generation unit 2, or the two microphones 6 may be disposed along a diagonal line of the sound generation unit 2. This embodiment is not limited thereto.

As shown in fig. 2, in order to better transmit the external sound to the microphone 6, in this embodiment, a sound pickup hole 113 may be formed through the housing 1 of the power adapter, and the sound pickup hole 113 corresponds to the microphone 6. By providing the sound pickup hole 113 corresponding to the microphone 6 on the housing 1, the sound signal for controlling the pronunciation unit 2 is directly transmitted to the microphone 6 through the sound pickup hole 113, so that the accuracy and definition of the sound signal absorbed and recognized by the microphone 6 can be improved, and thus the pronunciation unit 2 can be more quickly and effectively controlled.

As shown in fig. 2 and 3, in order to better fix the position of the circuit board 3 and the ac/dc converter plate 4 within the housing 1, in one possible embodiment, a partition 5 may be further provided between the circuit board 3 and the ac/dc converter plate 4, and the ac/dc converter plate 4 is connected to the circuit board 3 through the partition 5.

Usually, the circuit board 3 and the ac/dc converter plate 4 both have some protruding structures, and these protruding structures are for facilitating the connection between the two and the connection between the circuit board 3 and other components, and by disposing the partition plate 5 between the circuit board 3 and the ac/dc converter plate 4, the partition plate 5 can help to limit the position of the circuit board 3 and the ac/dc converter plate 4, thereby facilitating the connection between the two and preventing the circuit board 3 and the ac/dc converter plate 4 from shifting or shaking.

For the connection between the ac/dc converter plate 4 and the circuit board 3, specifically, the ac/dc converter plate 4 may be provided with a pin 41 extending toward the circuit board 3, the partition plate 5 may be provided with an avoiding hole 52 avoiding the pin 41, and the pin 41 passes through the avoiding hole 52 and is connected to the circuit board 3.

As shown in fig. 3, the ac/dc converter plate 4 is provided with a pin 41, the pin 41 is located on a side surface of the ac/dc converter plate 4 facing the partition plate 5, and the pin 41 protrudes toward the circuit board 3; here, the number of the pins 41 may be plural, for example, the number of the pins 41 is four, and the ac/dc converter board 4 is connected to the circuit board 3 through the pins 41.

The position where the pin 41 is arranged can be protruded on the surface of the ac/dc converter plate 4, the partition plate 5 is arranged between the circuit board 3 and the ac/dc converter plate 4, and the pin 41 penetrates through the partition plate 5 to be connected with the circuit board 3, so that the circuit board 3 and the ac/dc converter plate 4 can be more firmly fixed by the limiting and fixing action of the partition plate 5, the connection between the pin 41 and the circuit board 3 is more stable, and the influence on the connection between the pin 41 and the circuit board 3 caused by the deviation between the pin 41 and the circuit board 3 is avoided.

Since the pins 41 need to pass through the partition 5 to be connected with the circuit board 3, the parts of the partition 5 corresponding to the pins 41 are provided with the avoidance holes 52, and the avoidance holes 52 are used for avoiding the pins 41, so that the pins 41 pass through the avoidance holes 52 to be connected with the circuit board 3.

As shown in fig. 3, in this embodiment, the connection between the power adapter and the electronic device such as the mobile phone is specifically realized by providing a USB interface 7 on the housing 1 of the power adapter, and the USB interface 7 is electrically connected to the circuit board 3.

Through setting up USB interface 7, the USB joint of the data line of electronic equipment such as cell-phone inserts in USB interface 7, can realize the function that power adapter charges to electronic equipment. The USB connector is a universal connector, and the USB connectors of different electronic devices, such as mobile phones of different brands and models, are the same, so that the power adapter can charge the electronic devices of different models by arranging the USB interface 7, and the universality of the power adapter can be improved.

In addition, in order to further improve the charging efficiency of the power adapter, a plurality of USB interfaces 7 may be simultaneously disposed on the housing 1, so that a plurality of electronic devices may be connected to the plurality of USB interfaces 7, and the power adapter may simultaneously charge the plurality of electronic devices, thereby improving the charging efficiency of the power adapter.

As for the arrangement of the plurality of USB interfaces 7 on the housing 1, this embodiment is not particularly limited, and may be designed according to the arrangement of the components in the housing 1.

In one embodiment, at least one USB interface 7 may be disposed corresponding to the partition 5, the partition 5 has an avoiding slot 51 at an end corresponding to the USB interface 7, and the chip 71 in the USB interface 7 may be located in the avoiding slot 51.

As shown in fig. 2 and 3, taking an example of having a USB interface 7 on the housing 1, the USB interface 7 may be correspondingly disposed at a position of the partition 5, and the partition 5 is adjacent to the circuit board 3, so as to facilitate electrical connection between the USB interface 7 and the circuit board 3, and the space between the circuit board 3 and the partition 5 is also beneficial to defining the position of the USB interface 7.

In order to enable the partition board 5 to better limit the USB interface 7, an avoiding groove 51 is formed in a portion, corresponding to the USB interface 7, of the end portion of the partition board 5, the USB interface 7 is correspondingly located in the avoiding groove 51, and specifically, a chip 71 in the USB interface 7 is arranged in the avoiding groove 51.

If a plurality of USB ports 7 are provided on the housing 1, at least one USB port 7 is disposed in the avoiding groove 51 of the partition plate 5, or a plurality of avoiding grooves 51 may be provided at intervals at the end of the partition plate 5, so that a plurality of USB ports 7 are disposed side by side at the end of the partition plate 5.

In some embodiments, the avoiding groove 51 on the partition board 5 may be a through groove opened toward the housing 1, that is, the avoiding groove 51 penetrates through two side surfaces of the partition board 5, two sides of the avoiding groove 51 are used for defining two side positions of the USB interface 7, and the other side of the avoiding groove 51 corresponding to the opening is used for defining an extending position of the chip 71. In this way, the chip 71 in the USB interface 7 can be fixed in a pasted manner on the surface of the circuit board 3 on the side facing the partition 5.

In order to better fix the USB interface 7, the avoiding groove 51 on the partition plate 5 may be an avoiding groove 51 that does not penetrate through both sides of the partition plate 5, one side of the avoiding groove 51 facing the circuit board 3 is an opening thereof, the bottom of the avoiding groove 51 is on the partition plate 5, and the avoiding groove 51 may specifically be a concave pit provided on the partition plate 5.

Therefore, the lower end of the USB interface 7 is positioned on the partition plate 5 to avoid the groove bottom of the groove 51, so that the chip 71 in the USB interface 7 can be better limited, and the chip 71 can be supported on the groove bottom of the avoiding groove 51 to fix the position of the USB interface 7.

For a thicker separator 5, the separator 5 may be flat, and the avoidance groove 51 is formed by forming an inwardly recessed concave on the separator 5; in contrast, in the case of the thin separator 5, the end of the separator 5 may have a step surface facing the ac/dc converter plate 4, and the avoiding groove 51 may be formed by a height difference between the end of the separator 5 and another portion.

As shown in fig. 2 and fig. 3, in some embodiments, the housing 1 may include an upper shell 11 and a lower shell 12, the upper shell 11 and the lower shell 12 jointly enclose the housing 1 of the power adapter, a receiving cavity of the housing 1 is formed in a space enclosed by the upper shell 11 and the lower shell 12, and each component of the power adapter is disposed in the receiving cavity enclosed by the upper shell 11 and the lower shell 12.

In one embodiment, the upper case 11 may have a bottom wall 111 and side walls 112 surrounding the bottom wall 111, taking the shape of the power adapter as a cube as an example, the bottom wall 111 of the upper case 11 is rectangular, the side walls 112 of the upper case 11 are connected to four sides of the bottom wall 111, and the side walls 112 are perpendicular to the bottom wall 111, the lower case 12 may be a rectangular plate-shaped member, and the lower case 12 directly covers an opening surrounded by the side walls 112 of the upper case 11.

The receiving cavity of the housing 1 may be defined by the bottom wall 111 and the side wall 112 of the upper shell 11, and the receiving cavity is closed by covering the opening of the upper shell 11 with the lower shell 12, so as to form the integral housing 1. So set up, be convenient for lower casing 12 and the connection of epitheca 11, and be convenient for the machine-shaping of lower casing 12.

Specifically, the ac/dc converter plate 4 may be disposed near the lower case 12, and may abut against an inner wall of the lower case 12, such that the ac/dc converter plate 4 is disposed closer to the casing 1 of the power adapter, which facilitates connection of the ac/dc converter plate 4 with an external power source.

Correspondingly, the sound generation unit 2 on the other side of the circuit board 3 can be disposed close to the bottom wall 111 of the upper case 11, so that the space in the housing 1 can be utilized more reasonably, and the volume of the housing 1 can be further reduced.

For the connection between the ac/dc converter panel 4 and the external power source, specifically, as shown in fig. 2 and 3, a power plug 42 may be connected to the ac/dc converter panel 4, the lower case 12 is provided with a protruding hole 121, and the power plug 42 protrudes out of the lower case 12 through the protruding hole 121.

By connecting the power plug 42 to the ac/dc converter panel 4, the lower case 12 is provided with the extending hole 121 at a position corresponding to the power plug 42, the power plug 42 extends to the outside of the power adapter through the extending hole 121, and the power plug 42 is inserted into the jack of the external power supply, so as to realize the charging function of the power adapter.

It should be noted that, in the present embodiment, the power plug 42 may be fixed; alternatively, in order to further improve the portability of the power adapter, the power plug 42 may be foldable, so that the power plug 42 is kept in a vertical state when charging is required; when the power adapter is not used, the power plug 42 can be folded, and the power plug 42 can be parallel to the plate surface of the lower shell 12 or accommodated in the plate surface of the lower shell 12, so as to reduce the occupied space of the power adapter.

As shown in fig. 2 to 4, in the present embodiment, a plurality of sound outlet holes 114 may be further disposed on the upper shell 11, and the sound outlet holes 114 are communicated with the accommodating cavity. By providing the sound emitting hole 114 in the upper case 11, the sound emitting hole 114 penetrates the inner and outer walls of the upper case 11, which facilitates the sound emitted from the sound generating unit 2 to propagate to the outside through the sound emitting hole 114.

As shown in fig. 4, in the present embodiment, at least the sound emitting hole 114 may be formed on the bottom wall 111 of the upper case 11 corresponding to the sound generating unit 2, the sound emitting hole 114 is a small hole, and a plurality of sound emitting holes 114 may be formed in an array form on the corresponding portion of the sound generating unit 2.

Alternatively, a plurality of sound emitting holes 114 may be formed in the side wall 112 of the upper case 11 at positions corresponding to the sound emitting unit 2, so that the sound emitted from the sound emitting unit 2 can be transmitted to the outside of the power adapter through a plurality of directions.

As shown in fig. 1 to 4, in a possible embodiment, the upper case 11 may further be provided with an indicator light 115 and a key 116, the indicator light 115 is used for indicating an operating state of the power adapter or an operating state of the sound generating unit 2, and the key 116 is used for controlling the operating state of the sound generating unit 2.

By providing the indicator light 115 on the upper case 11, the indicator light 115 can indicate the operating status of the power adapter, for example, when the power adapter is charging the mobile phone and the power is not full, the indicator light 115 is displayed in red, and when the power is full, the indicator light 115 is displayed in green.

On the other hand, the indicator light 115 may also indicate the operation status of the sound generating unit 2, for example, when the sound generating unit 2 fails and cannot operate normally, the indicator light 115 may be yellow or other color different from the color indicating the charging process, or the indicator light 115 may flash at a certain frequency.

In addition, the microphone 6 of the sound generation unit 2 can be used for prompting the working state of the sound generation unit 2 by voice, for example, prompting the sound generation unit 2 to be powered on or powered off and to be in a fault state.

By providing the keys 116 on the upper housing 11, the keys 116 can be used to control the operating state of the sound emitting unit 2. For example, by pressing the button 116, the sound generating unit 2 can be switched between on and off states. Therefore, when the power adapter is connected with the external power supply, a user can decide whether to start the sound generation unit 2 to realize the function of the Bluetooth sound box according to the requirement of the user; when the pronunciation unit 2 is not required to be started, the pronunciation unit 2 is kept in a power-off state, so that the power consumed by the power adapter can be reduced, and the energy is saved.

The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (15)

1. A power adapter is characterized by comprising a shell, a sound generation unit, a circuit board and an alternating current/direct current conversion board, wherein the shell is provided with an accommodating cavity, the sound generation unit, the circuit board and the alternating current/direct current conversion board are arranged in the accommodating cavity, the sound generation unit, the circuit board and the alternating current/direct current conversion board are sequentially stacked in the thickness direction of the circuit board, and the circuit board is respectively and electrically connected with the sound generation unit and the alternating current/direct current conversion board; wherein, be equipped with wireless communication subassembly on the circuit board.

2. The power adapter as claimed in claim 1, wherein at least one microphone is further disposed in the receiving cavity, the microphone being electrically connected to the circuit board.

3. The power adapter as claimed in claim 2, wherein the number of the microphones is two, and the two microphones are symmetrically arranged on two sides of the sound generation unit.

4. The power adapter as claimed in claim 2, wherein the casing is provided with a sound pickup hole therethrough, and the sound pickup hole corresponds to the microphone.

5. The power adapter as claimed in any one of claims 1-4, wherein a partition is further disposed in the receiving cavity, the partition being disposed between the circuit board and the AC/DC converter board.

6. The power adapter as claimed in claim 5, wherein the housing is further provided with at least one USB interface, and the USB interface is electrically connected with the circuit board.

7. The power adapter as claimed in claim 6, wherein at least one of the USB interfaces is disposed corresponding to the partition, an avoiding slot is formed at an end of the partition corresponding to the USB interface, and a chip in the USB interface is located in the avoiding slot.

8. The power adapter as claimed in claim 5, wherein the ac/dc converter board is provided with a pin extending out of the circuit board, the partition board is provided with an avoiding hole for avoiding the pin, and the pin passes through the avoiding hole to be connected with the circuit board.

9. The power adapter as claimed in any one of claims 1-4, wherein the housing comprises an upper shell and a lower shell, the upper shell has a bottom wall and a side wall surrounding the bottom wall, the lower shell is covered on an opening surrounded by the side wall; the alternating current/direct current conversion plate is abutted to the inner wall of the lower shell.

10. The power adapter as claimed in claim 9, wherein a power plug is connected to the ac/dc conversion board, and the lower case is provided with an extending hole through which the power plug extends to an outside of the lower case.

11. The power adapter as claimed in claim 9, wherein the upper case is further provided with a plurality of sound holes, and the sound holes are communicated with the accommodating chamber.

12. The power adapter as claimed in claim 11, wherein the sound outlet holes are distributed on both the bottom wall and the side wall of the upper case.

13. The power adapter as claimed in claim 9, wherein the upper case is further provided with an indicator light for indicating an operating state of the power adapter or an operating state of the sound generating unit, and a key for controlling the operating state of the sound generating unit.

14. The power adapter as claimed in any one of claims 1-4, wherein the sound generation unit comprises a sound cavity and a speaker, the speaker being mounted on the sound cavity.

15. The power adapter as claimed in any one of claims 1-4, wherein the wireless communication assembly comprises a Bluetooth antenna.

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