CN207410493U - Noise Canceling Digital Radio Headphones - Google Patents

Abstract

A noise-reduction digital radio earphone comprises a headband assembly, two audio frequency modules, a power supply module and an adjusting module, wherein the two audio frequency modules are respectively connected with two ends of the headband assembly, the power supply module is arranged on the audio frequency modules, the headband assembly comprises an upper cover, a lower cover, two positioning sheets, a functional board, a sponge and two steel wires, the lower cover is matched with the middle part of the bottom surface of the upper cover, the two positioning sheets are matched with two ends of the bottom of the upper cover and are used for limiting the lower cover from two sides respectively, the middle part of the connecting sheet is clamped between the upper cover and the lower cover, the middle part of the steel wire is fixed between the upper cover and the lower cover, the sponge is adhered and fixed on the bottom surface of the lower cover, the lower cover and the two positioning sheets are matched with the upper cover by adopting a buckle structure, the noise-reduction digital radio earphone also comprises an antenna which is a soft antenna, the functional board is provided with a, to enhance the signal reception capability of the antenna.

Description

Noise Canceling Digital Radio Headphones

technical field

The utility model relates to an earphone, in particular to a noise reduction digital radio earphone.

Background technique

Earphones (also known as earphones, earpieces, and Headphones in English) are a pair of conversion units that receive electrical signals from media players or receivers and convert them into audible sound waves using speakers close to the ears. Headphones are generally detachable from the media player and connected with a plug. The advantage is that you can listen to the audio alone without affecting others; it can also isolate the sound of the surrounding environment, which is very helpful for people who use it in noisy environments such as recording studios, DJs, travel, and sports. Earphones were originally used on telephones and radios, but with the popularity of portable electronic devices, earphones are mostly used in mobile phones, walkmans, radios, portable video games and digital audio players.

Because the traditional earphones with radio use rod antennas or spring antennas, the earphones have poor receiving ability, are greatly disturbed by the outside world, and the noise reduction effect is not ideal, which affects the hearing effect of users. Therefore, the traditional earphones with radios can no longer Satisfy the use demand of consumer, need badly to improve the structure of traditional earphone with radio.

Utility model content

Based on this, it is necessary to provide a novel noise-cancelling digital radio earphone for the defects of poor receiving ability and unsatisfactory noise reduction effect of the earphone in the prior art.

The technical scheme of the utility model is:

A noise reduction digital radio earphone, comprising a headband assembly, two audio modules respectively connected to two ends of the headband assembly, a power supply module and an adjustment module, the power supply module is arranged on the audio module, and the headband The belt assembly includes an upper cover, a lower cover, two positioning pieces, a functional board, a sponge, and two steel wires. The lower cover is installed with the middle of the bottom surface of the upper cover, and the two positioning pieces are installed with the bottom ends of the upper cover. , the two positioning pieces respectively limit the lower cover from both sides, the middle part of the connecting piece is sandwiched between the upper cover and the lower cover, the middle part of the steel wire is fixed between the upper cover and the lower cover, and the sponge sticks Fixed on the bottom surface of the lower cover, the lower cover and the two positioning pieces are installed with the upper cover using a buckle structure. The noise reduction digital radio earphone also includes an antenna, which is a soft antenna. The functional board is provided with copper wires. The antenna Solder directly to the copper wire.

Further, the upper cover is arranged in an arc shape as a whole, and the front and rear edges of the upper cover are bent and extended inwardly from the bottom to form a receiving groove, and the front and rear edges of the lower cover are protrudingly provided with clamping strips. When assembling, each The steel wire is correspondingly accommodated in a storage groove, and the clip strips on both sides of the lower cover are correspondingly clamped in the storage groove to limit the steel wire.

Further, the positioning piece is arranged in an arc shape, and the front and rear sides of the positioning piece are protrudingly provided with limit strips, and the extension direction of the limit strip corresponds to the upper cover. When assembling, the front and rear sides of the positioning piece The limit bar is correspondingly stuck in the accommodating groove of the upper cover.

Further, a number of gaps are opened on the bottom edge of the upper cover, and the position of the gaps corresponds to the fixed position of the positioning piece. The front and rear sides of the positioning piece are protrudingly provided with clamping blocks, and the clamping blocks of the positioning plate are correspondingly clamped. in the gap in the cover.

Further, the upper end surface of the positioning piece is also provided with two convex pieces, the functional board passes between the two convex pieces, and the functional board is limited by the pair of convex pieces.

Further, the headband assembly also includes several brackets, the ends of the steel wires are fitted with the brackets, the brackets are provided with a "C"-shaped notch, and the audio module is provided with clamping posts, so The above-mentioned post is installed in cooperation with the notch.

Further, the audio module includes a casing, a middle casing installed in the casing, a speaker mounted on the middle casing, a sound-insulating sponge mounted on the middle casing and surrounding the outside of the speaker, and simultaneously fixed on the sound-proof sponge and the earmuffs on the edge of the case.

Further, the middle shell includes an inner plate and a mounting column connected to the middle of the inner plate, the middle shell is also provided with a through hole, and the through hole passes through the mounting column and extends to the inner plate, and the horn is embedded in the through hole. In the hole, the inner plate limits the position of the speaker, and the sound-insulating sponge is arranged in a ring shape as a whole, and the sound-insulating sponge is arranged on the outside of the mounting column, and the sound-insulating sponge faces the inner surface of the shell and is fixed with the inner plate.

Further, the inner diameter of the sound-insulating sponge is as long as the inner diameter of the earmuff, and the central hole of the sound-insulating sponge and the central hole of the earmuff are aligned with each other, and the wall thickness of the shell is 3.8-4.8mm.

Further, the power supply module includes a charging board and a battery connected to the charging board, and the noise-canceling digital radio earphone also includes a motherboard PCB, and the power supply module and the motherboard PCB are respectively arranged in two audio modules, so The battery and the loudspeaker are respectively connected to the main board PCB, and the main board PCB40 is provided with a control switch, and the control switch is a push-button switch.

The beneficial effect of the noise-reducing digital radio earphone of the utility model is that the antenna is directly welded to the copper wire by providing the copper wire on the function board, so as to enhance the ability of the antenna to receive signals. In addition, the middle shell of the noise-cancelling digital radio earphone includes an inner panel and a mounting column connected to the middle of the inner panel. The speaker is installed in the mounting column, and the sound-insulating sponge is arranged on the outside of the speaker, thereby effectively improving the noise reduction effect.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model noise reduction digital radio earphone.

Fig. 2 is an exploded view of the noise reduction digital radio earphone shown in Fig. 1, where the antenna is not shown.

Fig. 3 is an exploded view of the headband assembly of the noise reduction digital radio headset shown in Fig. 1 .

FIG. 4 is an exploded view of the audio module of the noise-canceling digital radio headset shown in FIG. 1 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, not to limit the utility model.

As shown in Figures 1 to 4, the utility model provides a noise reduction digital radio earphone, which is used to receive external audio signals and convert the audio signals into sound waves. The noise reduction digital radio earphones include a headband assembly 10 1. Two audio modules 20 and a power supply module (not shown in the figure) respectively connected to two ends of the headband assembly 10 , the power supply module is installed in the audio module 20 .

The headband assembly 10 includes an upper cover 11, a lower cover 12, two positioning pieces 15, a functional board 13, a sponge 16, two steel wires 14 and four brackets 17, the lower cover 12 and the middle part of the bottom surface of the upper cover 11 Cooperate with the installation, the two positioning pieces 15 are installed in cooperation with the two ends of the bottom of the upper cover 11, the two positioning pieces 15 respectively limit the lower cover 12 from both sides, and the middle part of the connecting piece is sandwiched between the upper cover 11 and the lower cover 12 Between them, the middle part of the steel wire 14 is fixed between the upper cover 11 and the lower cover 12, the sponge 16 is pasted and fixed on the bottom surface of the lower cover 12, and the lower cover 12 and the two positioning pieces 15 cooperate with the upper cover 11 in a buckle manner. Installation, easy maintenance, and simple structure, compared with the traditional headband structure (PVC or PU leather is fixed by hot pressing), it can effectively save the production cost of the product.

The upper cover 11 is arranged in an arc shape as a whole, and the front and rear edges of the upper cover 11 are bent and extended from the bottom to form a receiving groove 111. The bottom edge of the upper cover 11 is provided with a number of notches 112, and the positions of the notches 112 are in line with the The positioning piece 15 is installed in a corresponding fixed position. The front and rear edges of the lower cover 12 are respectively protrudingly provided with clamping strips 121. During assembly, each steel wire 14 is correspondingly accommodated in a receiving groove 111, and the clamping strips 121 on both sides of the lower cover 12 are correspondingly clamped in the receiving groove. Inside 111, the steel wire 14 is limited.

The positioning piece 15 is also arranged in an arc shape, and the front and rear sides of the positioning piece 15 are protrudingly provided with a limit bar 121 and a block 122. The extension direction of the limit bar 121 corresponds to the upper cover 11. When assembling, The limit strips 121 provided on the front and rear of the positioning piece 15 are correspondingly locked in the receiving groove of the upper cover 11 , and the locking blocks 122 of the positioning piece 15 are correspondingly locked in the gap 112 of the upper cover 11 . Preferably, two lugs are provided on the upper surface of the positioning piece 15, and the function board 13 passes between the two lugs, and the function board 13 is further limited by the pair of lugs to prevent the function board 13 from shaking.

The end of the steel wire 14 is installed in cooperation with the bracket 17, the bracket 17 is provided with a "C" shaped notch 171, the audio module 20 is provided with a post 26, and the post 26 is connected with the notch 171 for installation.

The utility model noise reduction digital radio earphone also includes an antenna 50, the antenna 50 is a soft antenna 50, the functional board 13 is provided with a copper wire, and the antenna 50 is directly welded to the copper wire to enhance the reception of the antenna 50. signaling ability.

The audio module 20 includes a shell 21, a middle shell 22 installed in the shell 21, a speaker 23 mounted on the middle shell 22, a soundproof sponge 24 mounted on the middle shell 22 and surrounded by the outside of the horn 23, And the earmuffs 26 fixed on the edge of the soundproof sponge 24 and the shell 21 at the same time, the earmuffs 26 are arranged in a ring shape, the shell 21 is arranged in a bowl shape, and the inner side of the shell 21 is convexly provided with a support frame, and the middle shell 22 includes The inner panel 221 and the mounting column 222 connected to the middle of the inner panel 221, the support frame is against the inner surface of the inner panel 221, and the middle shell 22 is also provided with a through hole, and the through hole penetrates the mounting column 222 and Extending to the inner plate 221, the horn 23 is embedded in the through hole, the inner plate 221 limits the position of the horn 23, and the sound-proof sponge 24 is arranged in a ring as a whole, and the sound-proof sponge 24 is arranged on the outside of the installation column 222, and the sound-proof The inner surface of the sponge 24 facing the shell 21 is fixed to the inner plate 221. The inner diameter of the sound-insulating sponge 24 is equal to the inner diameter of the earmuff 26, and the center hole of the sound-insulating sponge 24 is aligned with the center hole of the earmuff 26. The entire audio module 20 The structural noise reduction effect is good. Preferably, in order to further improve the noise reduction effect, the wall thickness of the casing 21 is 3.8-4.8 mm. In this embodiment, the wall thickness of the casing 21 is 4.7 mm.

The power supply module includes a charging board 32 and a battery 31 connected to the charging board 32. The external power supply charges the battery 31 through the charging board 32. The noise-reducing digital radio earphone also includes a motherboard PCB 40. In this embodiment, the The power supply module and the main board PCB 40 are respectively arranged in the two audio modules 20, the battery 31 and the loudspeaker 23 are respectively connected to the main board PCB 40, and the main board PCB 40 is provided with a control switch 41 for adjusting volume and The speaker 23 is in working state (on or off), and the control switch 41 adopts a push-button switch, which has a better waterproof effect than the traditional earphones controlled by rotation.

The beneficial effect of the noise-reducing digital radio earphone of the utility model is that: the antenna 50 is directly welded to the copper wire by providing the copper wire on the function board 13, so as to enhance the ability of the antenna 50 to receive signals. In addition, the middle shell 22 of the noise-canceling digital radio earphone includes an inner panel 221 and a mounting column 222 connected to the middle of the inner panel 221. The speaker 23 is installed in the mounting column 222, and the sound-insulating sponge 24 is surrounded by the speaker 23 outside. Effectively improve the noise reduction effect.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of a utility model patent should be determined by the appended claims.

Claims (10)

1. A noise-reducing digital radio earphone, comprising a headband assembly, two audio modules connected to two ends of the headband assembly, a power supply module, the power supply module is arranged on the audio module, and it is characterized in that the The headband assembly includes an upper cover, a lower cover, two positioning pieces, a functional plate, a sponge, and two steel wires. Cooperate with the installation, the two positioning pieces respectively limit the lower cover from both sides, the middle part of the connecting piece is sandwiched between the upper cover and the lower cover, and the middle part of the steel wire is fixed between the upper cover and the lower cover. The sponge is pasted and fixed on the bottom of the lower cover. The lower cover and the two positioning pieces are installed with the upper cover using a buckle structure. The noise-canceling digital radio earphone also includes an antenna, which is a soft antenna. The above antenna is soldered directly to the copper wire. 2. The noise-cancelling digital radio earphone according to claim 1, characterized in that: the upper cover is arranged in an arc shape as a whole, the front and rear edges of the upper cover are bent and extended from the bottom to form a receiving groove, and the lower cover The front and rear edges of the cover are respectively protruded with clamping strips. During assembly, each steel wire is correspondingly stored in a storage groove, and the clamping strips on both sides of the lower cover are correspondingly clamped in the storage grooves to limit the position of the steel wires. 3. The noise-cancelling digital radio earphone according to claim 2, characterized in that: the front and rear sides of the positioning piece are protrudingly provided with limit strips, and the extension direction of the limit strip corresponds to the upper cover. , the limit strips arranged on the front and back of the positioning piece are correspondingly stuck in the accommodation groove of the upper cover. 4. The noise-cancelling digital radio earphone according to claim 3, characterized in that: there are several notches on the bottom edge of the upper cover, the positions of the notches correspond to the fixed positions of the positioning piece, and the front and rear of the positioning piece Blocks are protrudingly provided on both sides, and the blocks of the positioning piece are correspondingly set in the gaps of the upper cover. 5. The noise reduction digital radio earphone as claimed in claim 3, characterized in that: the upper end surface of the positioning piece is also provided with two convex pieces, and the function board passes between the two convex pieces, and the pair of convex pieces is used for the function. Board limit. 6. The noise reduction digital radio earphone according to claim 1, characterized in that: the headband assembly also includes several brackets, the ends of the steel wires are fitted with the brackets, and the brackets are provided with a "C" shape The notch, the audio module is provided with a post, and the post is installed in cooperation with the notch. 7. The noise reduction digital radio earphone according to claim 1, wherein the audio module includes a shell, a middle shell installed in the shell, a speaker mounted on the middle shell, and a speaker mounted on the middle shell The sound-proof sponge, and the earmuffs fixed on the edge of the sound-proof sponge and the shell at the same time, the sound-proof sponge is arranged around the outside of the speaker. 8. The noise-cancelling digital radio earphone according to claim 7, characterized in that: the middle shell includes an inner plate and a mounting column connected to the middle of the inner plate, and the middle shell is also provided with a through hole, and the through hole Through the installation column and extend to the inner plate, the speaker is embedded in the through hole, the inner plate limits the speaker, the sound insulation sponge is arranged in a ring shape, and the sound insulation sponge is arranged on the outside of the installation column, and the sound insulation sponge faces the outer shell The inner side is fixed to the inner panel. 9. The noise-reducing digital radio earphone as claimed in claim 7, characterized in that: the inner diameter of the sound-insulating sponge is equal to the inner diameter of the earmuff, and the central hole of the sound-insulating sponge is aligned with the central hole of the earmuff, the The wall thickness of the shell is 3.8-4.8mm. 10. The noise reduction digital radio earphone according to claim 7, wherein the power supply module includes a charging board and a battery connected to the charging board, and the noise reduction digital radio earphone also includes a main board PCB, the The power supply module and the main board PCB are respectively arranged in the two audio modules, the battery and the loudspeaker are respectively connected to the main board PCB, and a control switch is arranged on the main board PCB, and the control switch is a push-button switch.