CN203399270U - a passive speaker - Google Patents

Abstract

The utility model provides a passive audio amplifier, mobile device accessories technical field. Passive audio amplifier includes casing, audio amplifier body and casing integrated into one piece that moulds plastics, this internal public address passageway that is provided with of audio amplifier, be provided with into the sound mouth on the casing, audio amplifier body bottom sets up the public address mouth, go into the sound mouth with the public address mouth passes through public address passageway intercommunication, the public address passageway of audio amplifier body is the circular cone column structure, and the circular cone point is for going into the sound mouth, and circular cone macropore footpath end is the public address mouth. The music playing device is light and convenient, is organically combined with equipment such as a mobile phone, can effectively enlarge the sound output of the equipment such as the mobile phone without an external power supply, and meets the music playing entertainment function of the equipment such as the mobile phone used outdoors by people. In addition, the cylindrical sound box body is arranged outside the shell and can be used as a base to enable equipment such as a mobile phone or a tablet personal computer to stand.

Description

a passive speaker

technical field

The utility model relates to the technical field of spare parts for mobile devices, in particular to a sound box for mobile phones and tablet computers that can amplify the sound of the mobile phones and tablet computers.

Background technique

Mobile phones and tablet computers are indispensable supplies in today's society. Because they have many functions, everyone carries them with them now. Making phone calls, listening to music, watching movies, and playing games are the functions most used by consumers, but in some noisy places or when outdoors or exercising, the sound of the mobile phone itself is not enough, and the sound is often felt to be too low. At present, consumers connect an external speaker, connect the speaker with a mobile phone or a tablet computer with a USB cable, input the sound from the mobile phone into the speaker, and expand the speaker externally. But the sound box in the prior art all needs electricity, battery or charging, and all has certain weight, is still inconvenient to carry.

Utility model content

The utility model provides a portable sound box without power supply.

The technical scheme of the utility model is realized in the following way: a passive sound box, the passive sound box includes a shell and a sound box body, the sound box body and the shell are integrally formed by injection molding, and a sound amplification channel is arranged in the sound body , the housing is provided with a sound inlet, and the bottom of the speaker body is provided with a sound reinforcement port, and the sound inlet and the sound reinforcement port are connected through a sound reinforcement channel, and the sound reinforcement channel of the speaker body is conical Structure, the tip of the cone is the sound inlet, and the large-diameter end of the cone is the sound reinforcement.

Optionally, the sound inlet and the sound reinforcement are at an angle of 90 degrees.

Optionally, the sound inlet and the sound reinforcement are at an angle of 180 degrees. A groove is arranged on the back of the sound box body, and an insert block matching the size of the groove is inserted in the groove. The insert block contains a section of sound transmission channel turned at 90 degrees. Some amplification channels are connected.

Preferably, the sound box body is cylindrical, and its interior is a conical sound reinforcement channel.

The casing is provided with a card slot matching the shape of the target sound-emitting device, and the position of the sound inlet matches the sound-emitting port of the target sound-emitting device.

The camera hole is arranged on the casing, the earphone jack and the button hole are arranged on the top of the casing, the connecting wire jack is arranged on the bottom of the casing, and U-shaped holes are arranged on both sides of the casing. notch.

A camera hole, an earphone jack, a button hole, and a connection line jack matching the target playback device are arranged on the housing.

Compared with the prior art, the utility model provides a passive speaker, which is light, organically combined with mobile phones and other equipment, can effectively expand the sound output of mobile phones and other equipment without external power supply, and satisfies the need for people to use mobile phones outdoors Music playback and entertainment functions of other devices. In addition, the cylindrical sound box body is arranged outside the housing, which can be used as a base to stand up mobile phones or tablet computers and other devices.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural perspective view of the passive sound box that embodiment 1 provides;

Fig. 2 is the structural representation of the passive sound box that embodiment 1 provides;

Fig. 3 is a perspective view of the mechanism in another direction of Fig. 1;

Fig. 4 is the structural representation of the passive sound box that embodiment 2 provides;

Fig. 5 is the structural perspective view of the passive sound box that embodiment 2 provides;

FIG. 6 is a structural perspective view from another direction of FIG. 5 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1:

A passive speaker as shown in Figures 1 to 3, including a shell 1, a speaker body 2, the speaker body 2 and the shell 1 are integrally formed by injection molding, the sound body 2 is provided with a sound amplification channel 3, and the speaker body 2 is a cylinder Shape, and its inside is a conical sound reinforcement channel 3. The casing is provided with a card slot 7 matching the shape of the target sound playback device, and the casing is provided with a camera hole, an earphone jack 10, a button hole 11, and a connection line jack 12 that match the target sound playback device. The camera hole is set on the shell 1, the earphone jack 10 and the button hole 11 are set on the top of the shell 1, the connection line jack 12 is set on the bottom of the shell 1, and both sides of the shell 1 are provided with U-shaped grooves Mouth 13.

The shell 1 is provided with a sound inlet 4, and the position of the sound inlet matches the sound outlet of the target sound playback device. The bottom of the speaker body 2 is provided with an amplifying port 6, and the sound inlet 4 and the amplifying port 6 pass through the amplifying channel 3 are connected, the sound reinforcement channel 3 of the speaker body 2 is a conical structure, the tip of the cone is the sound inlet 4, and the large-diameter end of the cone is the sound reinforcement port 6.

For the sound playback device whose sound outlet is on the back, in order to make the sound inlet 4 match the sound outlet, as shown in Figures 2 and 3. The sound inlet port 4 is arranged on the housing 1, and the sound inlet port 4 and the sound reinforcement port 6 form an included angle of 90 degrees.

How to use: Put the playback device into the card slot of the passive speaker of the corresponding model, turn on the playback function of the playback device, and then the amplified sound will be released from the passive speaker. Passive speakers can provide a base function, so that playback devices such as mobile phones or tablet computers can be placed upright, so that users can use the audio-visual entertainment functions of the playback devices.

Example 2

The difference between this embodiment and Embodiment 1 is that, for the sound emitting device with the sound emitting port at the bottom, in order to match the sound inlet 5 with the sound emitting port, as shown in FIG. 6 . The sound inlet 5 is arranged inside the bottom of the housing 1 , and the sound inlet 5 and the sound reinforcement port 6 form an included angle of 180 degrees. In order to facilitate the processing and production of the product and facilitate the decidua operation during injection molding, as shown in Figures 4 and 5, a slot is arranged on the back of the speaker body 2, and an insert 8 matching the size of the slot is inserted in the slot. 8 contains a section of sound transmission channel 9 turned 90 degrees, and the sound transmission channel communicates with the sound amplification channel 3 provided in the audio body 2 . The plug-in block 8 plays the role of conducting the sound and turning it to 90.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. A passive sound box, characterized in that: the passive sound box includes a shell, a sound box body, the sound box body and the shell are integrally formed by injection molding, a sound amplification channel is arranged in the sound box body, and the shell body A sound inlet is provided on the top, and a sound reinforcement port is provided at the bottom of the speaker body, and the sound inlet and the sound reinforcement port are connected through a sound reinforcement channel. The sound reinforcement channel of the speaker body is a conical structure, and the tip of the cone is The sound inlet, the conical large-aperture end is the sound reinforcement port. the 2. The passive sound box according to claim 1, characterized in that: the sound inlet and the sound reinforcement are at an angle of 90 degrees. the 3. The passive sound box according to claim 1, characterized in that: the sound inlet and the sound reinforcement are at an angle of 180 degrees. the 4. The passive speaker according to claim 3, wherein a slot is arranged on the back of the speaker body, and an insert block matching the size of the slot is inserted in the slot, and the insert block includes a 90-degree turn The sound transmission channel communicates with the sound amplification channel provided in the sound body. the 5. The passive sound box according to claim 1, characterized in that: the sound box body is cylindrical, and its interior is a conical sound reinforcement channel. the 6. The passive sound box according to claim 1, characterized in that: the housing is provided with a card slot matching the shape of the target sound playback device, and the position of the sound inlet is consistent with that of the target sound playback device The sound outlet matches. the 7 . The passive sound box according to claim 6 , wherein a camera hole, an earphone jack, a button hole, and a connection line jack matching the target sound playback device are arranged on the housing. 8 . the 8. The passive sound box according to claim 7, characterized in that: the camera hole is arranged on the casing, the earphone jack and the button hole are arranged on the top of the casing, and the connecting wire jack is arranged on the The bottom of the housing and both sides of the housing are provided with U-shaped notches. the

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