CN203399243U - Horn sound chamber structure - Google Patents

Horn sound chamber structure Download PDF

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Publication number
CN203399243U
CN203399243U CN201320415968.1U CN201320415968U CN203399243U CN 203399243 U CN203399243 U CN 203399243U CN 201320415968 U CN201320415968 U CN 201320415968U CN 203399243 U CN203399243 U CN 203399243U
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CN
China
Prior art keywords
cavity
loudspeaker
elasticity
hard
chamber
Prior art date
Application number
CN201320415968.1U
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Chinese (zh)
Inventor
郭少伟
Original Assignee
东莞市启原实业有限公司
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Priority to CN201320415968.1U priority Critical patent/CN203399243U/en
Application granted granted Critical
Publication of CN203399243U publication Critical patent/CN203399243U/en

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Abstract

The utility model discloses a horn sound chamber structure which comprises a housing and a horn, wherein the housing comprises a front cover and a rear cover connected in an enclosing means, and the rear cover comprises an elastic wall body and a hard wall body integrally moulded by a double-color die through an injection moulding means. The hard wall body tightly presses against the external portion of the elastic wall body, and a cavity is formed in the elastic wall body. The horn is installed at the front end of the cavity, and an acoustic chamber is formed between the horn and the cavity. In this way, the inner wall of the acoustic chamber is designed as a resonant elastic wall to improve the horn sound quality. Compared with the prior art, the horn sound chamber structure emits sound with higher sound decibel when vibration frequency is the same, and the horn sound chamber structure is lower in vibration frequency when the sound decibel is the same. The horn sound chamber structure is simple in structure and easy for manufacture, lowers production cost and can be applied to sound box, earphone, cell phone and other products to optimize the performance of the product, so that the products better satisfy the requirements of users.

Description

A kind of loudspeaker sound cell structure

Technical field

The utility model relates to the loudspeaker sound cell structure for audio amplifier, earphone etc., refers in particular to a kind of effective tonequality and loudspeaker sound cell structure simple in structure of having improved.

Background technology

Development along with the epoch, the electronic products such as audio amplifier, earphone, mobile phone, computer spread all in people's life, on aforementioned electronic product, conventionally dispose sound-producing device, this sound-producing device generally comprises housing and is positioned at the loudspeaker of housing, in this housing, form cavity, loudspeaker are installed in cavity and in cavity, form tone chamber, and tone chamber's inwall is inner walls, housing has the hard wall bodies such as plastic casing, Wood shell, metal shell, and these tone chamber's structures in conventional art have been limited to the improvement of tonequality.

Therefore, need work out a kind of new technical scheme and solve above-mentioned deficiency.

Utility model content

In view of this, the utility model is for the disappearance of prior art existence, and its main purpose is to provide a kind of loudspeaker sound cell structure, and it has effectively improved tonequality, and simple in structure, be easy to manufacture.

For achieving the above object, the utility model adopts following technical scheme:

A kind of loudspeaker sound cell structure, include housing and loudspeaker, this housing includes protecgulum and the bonnet that encloses each other connection, this bonnet includes elasticity wall body and the hard wall body being formed by double color mould integrated through injection molding, and this hard wall body is close to elastic wall external body, this elasticity wall body inside is formed with cavity, and these loudspeaker are installed on cavity front end, and forms tone chamber between loudspeaker and cavity inner wall face.

As a kind of preferred version, described protecgulum inside is formed with ante-chamber, and this ante-chamber and aforementioned cavity connect each other.

As a kind of preferred version, described protecgulum is hard protecgulum, and this hard protecgulum and aforementioned hard wall body are connected.

As a kind of preferred version, described ante-chamber, cavity be all along fore-and-aft direction setting, and this ante-chamber, cavity face along fore-and-aft direction.

As a kind of preferred version, described elasticity wall body and hard wall body all have sidewall and rear wall, and aforementioned cavity is enclosed and formed by the sidewall of elasticity wall body and rear wall; The Thickness Ratio of the rear wall of the rear wall of this elasticity wall body and hard wall body is 4:1.

As a kind of preferred version, the fore-and-aft direction depth ratio of described ante-chamber and cavity is 2.3:1.

As a kind of preferred version, the front opening place of described cavity is formed with step, and aforementioned loudspeaker are installed on this step.

As a kind of preferred version, described elastic wall external body one extends to form live conductor portion, and this line ball portion and aforementioned cavity are angle setting, and this line ball portion inside is formed with the through hole passing for earphone cord, and this through hole and aforementioned cavity connect each other.

As a kind of preferred version, described elasticity wall body has roof, diapire and the surrounding sidewall that encloses each other connection, and aforementioned cavity is enclosed and formed by its roof, diapire and surrounding sidewall; Aforementioned loudspeaker are arranged at respectively the roof of elasticity wall body and wherein on two side, aforementioned tone chamber is formed at respectively between corresponding loudspeaker and the internal face of elasticity wall body.

As a kind of preferred version, described protecgulum and hard wall body are ABS or PC ebonite is made, and aforementioned elasticity wall body is that TPE flexible glue is made.

The utility model adopts after technique scheme, and its beneficial effect is:

One, by the inwall of tone chamber is designed to the elastic wall that resonates, thereby effectively improved the tonequality of loudspeaker, compare conventional art, under same vibration frequency, its sound decibel is higher, and same sound decibel its vibration frequency is lower, and it is simple in structure, be easy to manufacture, production cost is lower, be conducive to be applied on the products such as audio amplifier, earphone and mobile phone, thereby optimize the performance of these products, meet better people's demand.

Two, the cavity front opening place of aforementioned elasticity wall body is formed with step, aforementioned loudspeaker are installed on this step, like this, flexible step makes the installation sealing of loudspeaker better, meanwhile, loudspeaker have been played to certain cushioning effect, being fitted between each part in loudspeaker is not prone to the bad phenomenon such as loosening in permanent use procedure, contribute to guarantee the better service behaviour of loudspeaker, the useful life of also having improved loudspeaker.

For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is elaborated.

Accompanying drawing explanation

Fig. 1 is the perspective view of the first embodiment of the utility model;

Fig. 2 is the cross section structure schematic diagram of the first embodiment of the utility model;

Fig. 3 is the decomposition texture schematic diagram (loudspeaker are not shown) of the first embodiment of the utility model;

Fig. 4 is the cross section structure schematic diagram of the second embodiment of the utility model;

Fig. 5 is the perspective view of the third embodiment of the utility model;

Fig. 6 is the decomposition texture schematic diagram of the third embodiment of the utility model;

Fig. 7 is the cross section structure schematic diagram of the third embodiment of the utility model;

Fig. 8 is the perspective view of the 4th kind of embodiment of the utility model;

Fig. 9 is the decomposition texture schematic diagram of the 4th kind of embodiment of the utility model;

Figure 10 is the exploded structural representation of the 4th kind of embodiment of the utility model;

Figure 11 is partial cross section's structural representation of the 4th kind of embodiment of the utility model;

Figure 12 is the perspective view of the 5th kind of embodiment of the utility model;

Figure 13 is another angle perspective view of the 5th kind of embodiment of the utility model;

Figure 14 is the decomposition texture schematic diagram of the 5th kind of embodiment of the utility model;

Figure 15 is the exploded structural representation of the 5th kind of embodiment of the utility model;

Figure 16 is the cross section structure schematic diagram at M-M place of the 5th kind of embodiment of the utility model;

Figure 17 is the cross section structure schematic diagram at N-N place of the 5th kind of embodiment of the utility model;

Figure 18 is one of audio test comparison chart of loudspeaker sound cell structure.

Accompanying drawing identifier declaration:

10, protecgulum 11, ante-chamber

20, bonnet 21, elasticity wall body

211, back cavity (cavity) 212, step

22, hard wall body 221, containing cavity

201, tone chamber 30, loudspeaker

40, ear muff 50, earphone cord

60, rosette

71, protecgulum 72, ante-chamber

73, bonnet 74, elasticity wall body

75, back cavity (cavity) 76, hard wall body

77, tone chamber 78, loudspeaker

79, ear muff

81, headphone unit 82, headband

811, protecgulum 812, ante-chamber

813, bonnet 814, elasticity wall body

815, back cavity (cavity) 816, hard wall body

817, tone chamber

91, elasticity wall body 92, hard wall body

931, loudspeaker 932, bass horn

94, tone chamber.

Embodiment

Refer to shown in Fig. 1 to Figure 18, it has demonstrated the concrete structure of planting preferred embodiment more than the utility model, the loudspeaker sound cell structure of the utility model includes housing and loudspeaker, this housing includes protecgulum and the bonnet that encloses each other connection, this bonnet includes elasticity wall body and the hard wall body being formed by double color mould integrated through injection molding, and this hard wall body is close to elastic wall external body, this elasticity wall body inside is formed with cavity, these loudspeaker are installed on cavity front end, and form tone chamber between loudspeaker and cavity inner wall face.

The loudspeaker sound cell structure of the utility model can be widely used on the products such as audio amplifier, earphone and mobile phone, first two embodiment be take PlayGear Stealth and is explained as example, refer to Fig. 1 to Fig. 4, it has demonstrated the concrete structure of two kinds of preferred embodiments of the utility model.

This earphone includes housing, loudspeaker 30, earphone cord 50 and ear muff 40, and this ear muff 40(can adopt silica gel to make) be matched with housing front end, this housing rear end is provided with rosette 60.

Wherein, this housing includes protecgulum 10 connected to one another and bonnet 20, these protecgulum 10 inside are formed with ante-chamber 11, and these bonnet 20 inside are formed with the back cavity 211 connecting each other with ante-chamber 11, and these loudspeaker 30 are positioned at protecgulum 10 and bonnet 20 encloses the cavity of formation and forms tone chamber 201 in cavity.

Particularly, bonnet 20 includes elasticity wall body 21 and hard wall body 22, elasticity wall body 21 and hard wall body 22 all have sidewall and rear wall, as can be seen from Figure 3, there is a containing cavity 221 these hard wall body 22 inside, this elasticity wall body 21 is positioned at containing cavity 221, and aforementioned back cavity 211(is cavity) be formed at elasticity wall body 21 inside, from accompanying drawing, can find out, ante-chamber 11 and back cavity 211 be all along fore-and-aft direction setting, and this ante-chamber 11, back cavity 211 face along fore-and-aft direction, it is cavity that aforementioned loudspeaker 30 are installed on back cavity 211() front end, aforementioned tone chamber 201 is formed in back cavity 211, so, tone chamber's 201 inwalls are resonance elastic wall, compare hard tone chamber inwall in conventional art, the tonequality of loudspeaker 30 has obtained obvious improvement, as shown in figure 18, data (one of applicant's test data) are compared in its test of audio for hard tone chamber in the loudspeaker sound cell structure of the utility model and conventional art, the curve that is positioned at top in Figure 18 represents the test data of the loudspeaker sound cell structure of the utility model, and the curve that is arranged in below represents the test data of conventional art loudspeaker sound cell structure, be not difficult to find out, the loudspeaker sound cell structure of the utility model is compared conventional art, under same vibration frequency, its sound decibel is higher, same sound decibel its vibration frequency is lower.

And the outside one of aforementioned elasticity wall body 21 extends to form live conductor portion, this line ball portion and aforementioned cavity 211 are angle setting, and this line ball portion inside is formed with the through hole passing for earphone cord 50, and this through hole and aforementioned cavity 211 connect each other.

As shown in Figure 4, the sidewall of this elasticity wall body 21 and rear wall all one-body molded with containing cavity 221 inwalls of hard wall body 22 or each other close contact contact, through applicant repeatedly development test know, the Thickness Ratio of the rear wall of the rear wall of elasticity wall body 21 and hard wall body 22 is designed to L3:L4=4:1, and ante-chamber 11 and the fore-and-aft direction depth ratio of back cavity 211 are designed to L1:L2=2.3:1, its tonequality can have greatly improved.

Protecgulum 10 is hard protecgulum 10, this hard protecgulum 10 is connected with aforementioned hard wall body 22, and protecgulum 10 and hard wall body 22 all can adopt ABS or PC ebonite to be made, and aforementioned elasticity wall body 21 can adopt TPE flexible glue to be made, certainly, also can select other suitable material;

Comparison diagram 2 and Fig. 4 can find out, the main distinction of two kinds of embodiment is, in embodiment illustrated in fig. 2, the back cavity 211(of its elasticity wall body 21 is cavity) front opening place be formed with step 212, and aforementioned loudspeaker 30 are installed on this step 212, like this, flexible step 212 makes the installation sealing of loudspeaker 30 better, meanwhile, loudspeaker 30 have been played to certain cushioning effect.

As shown in Figures 5 to 7, it has shown the concrete structure schematic diagram of the third embodiment of the utility model; At this, the loudspeaker sound cell structure of the utility model is applied on bluetooth earphone, it includes protecgulum 71, bonnet 73, loudspeaker 78 and ear muff 79, these protecgulum 71 inside are formed with ante-chamber 72, it is cavity that these bonnet 73 inside are formed with the back cavity 74(connecting each other with ante-chamber 72), this bonnet 73 includes elasticity wall body 75 and hard wall body 76, and aforementioned back cavity 74, tone chamber 77 is formed at elasticity wall body 75Nei,Ji tone chamber 77 inwalls for resonance elastic wall.

As shown in Figs. 8 to 11, it has shown the concrete structure schematic diagram of the 4th kind of embodiment of the utility model, at this, the loudspeaker sound cell structure of the utility model is applied on headphone, it includes two and is positioned at a left side, the headphone unit 81 on right side and be connected in a left side, the headband 82 of right side headphone unit 81, this headphone unit 81 includes protecgulum 811, bonnet 813 and loudspeaker (not shown), these protecgulum 811 inside are formed with ante-chamber 812, it is cavity that these bonnet 813 inside are formed with the back cavity 814(connecting each other with ante-chamber 812), this bonnet 813 includes elasticity wall body 815 and hard wall body 816, aforementioned tone chamber 817 is formed in elasticity wall body 815, be that tone chamber's 817 inwalls are resonance elastic wall.

As shown in Figure 12 to Figure 17, it has shown the concrete structure schematic diagram of the 5th kind of embodiment of the utility model; At this, the loudspeaker sound cell structure of the utility model is applied on the mini audio amplifier of three loudspeaker, this elasticity wall body 91 and hard wall body 92 all have roof, diapire and the surrounding sidewall that is connected to each other and encloses, and aforementioned cavity is formed in elasticity wall body 91; Aforementioned loudspeaker comprise a loudspeaker 931 and two bass horns 932, this loudspeaker 931 is arranged on the roof of elasticity wall body 91, this two bass horn 932 is arranged at respectively on the left and right sidewall of elasticity wall body 91, and the tone chamber separately 94 of aforementioned loudspeaker is formed at respectively between corresponding loudspeaker and the internal face of elasticity wall body 91.In addition, from accompanying drawing 14-17, can find out, elasticity wall body 91 in the present embodiment and hard wall body 92 are all designed to upper and lower two parts and are connected to each other and enclose formation, and certainly, the design of the concrete structure of elasticity wall body 91 and hard wall body 92 and assembled relation are not limited in any way at this.

Creative technical scheme of the present utility model is mainly loudspeaker sound cell structure, other concrete structure design of aforementioned PlayGear Stealth, bluetooth earphone, headphone and the mini audio amplifier of three loudspeaker does not impose any restrictions at this, loudspeaker sound cell structure of the present utility model is applied on aforementioned PlayGear Stealth, bluetooth earphone, headphone and the mini audio amplifier of three loudspeaker, only as embodiment, illustrate, this loudspeaker sound cell structure can also be widely used in the electronic products such as mobile phone, computer and all utilization on the product that loudspeaker are used as sound-producing device.

Design focal point of the present utility model is, it is mainly resonance elasticity inwall and hard outer wall by the wall of tone chamber is designed to be formed by double color mould integrated through injection molding, thereby effectively improved the tonequality of loudspeaker, and simple in structure, be easy to manufacture, production cost is lower, is conducive to be applied on the products such as audio amplifier, earphone and mobile phone, thereby optimize the performance of these products, meet better people's demand; Next is, the back cavity front opening place of aforementioned elasticity wall body is formed with step, aforementioned loudspeaker are installed on this step, like this, flexible step makes the installation sealing of loudspeaker better, simultaneously, loudspeaker have been played to certain cushioning effect, being fitted in permanent use procedure between each part in loudspeaker is not prone to the bad phenomenon such as loosening, contributes to guarantee the better service behaviour of loudspeaker, the useful life of yet having improved loudspeaker.

The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore any trickle modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.

Claims (10)

1. a loudspeaker sound cell structure, it is characterized in that: include housing and loudspeaker, this housing includes protecgulum and the bonnet that encloses each other connection, this bonnet includes elasticity wall body and the hard wall body being formed by double color mould integrated through injection molding, and this hard wall body is close to elastic wall external body, this elasticity wall body inside is formed with cavity, and these loudspeaker are installed on cavity front end, and forms tone chamber between loudspeaker and cavity inner wall face.
2. a kind of loudspeaker sound cell structure according to claim 1, is characterized in that: described protecgulum inside is formed with ante-chamber, and this ante-chamber and aforementioned cavity connect each other.
3. a kind of loudspeaker sound cell structure according to claim 2, is characterized in that: described protecgulum is hard protecgulum, and this hard protecgulum and aforementioned hard wall body are connected.
4. a kind of loudspeaker sound cell structure according to claim 2, is characterized in that: described ante-chamber, cavity be all along fore-and-aft direction setting, and this ante-chamber, cavity face along fore-and-aft direction.
5. a kind of loudspeaker sound cell structure according to claim 4, is characterized in that: described elasticity wall body and hard wall body all have sidewall and rear wall, and aforementioned cavity is enclosed and formed by the sidewall of elasticity wall body and rear wall; The Thickness Ratio of the rear wall of the rear wall of this elasticity wall body and hard wall body is 4:1.
6. a kind of loudspeaker sound cell structure according to claim 4, is characterized in that: the fore-and-aft direction depth ratio of described ante-chamber and cavity is 2.3:1.
7. a kind of loudspeaker sound cell structure according to claim 2, is characterized in that: the front opening place of described cavity is formed with step, and aforementioned loudspeaker are installed on this step.
8. a kind of loudspeaker sound cell structure according to claim 1, it is characterized in that: described elastic wall external body one extends to form live conductor portion, this line ball portion and aforementioned cavity are angle setting, and this line ball portion inside is formed with the through hole passing for earphone cord, and this through hole and aforementioned cavity connect each other.
9. a kind of loudspeaker sound cell structure according to claim 1, is characterized in that: described elasticity wall body has roof, diapire and the surrounding sidewall that encloses each other connection, and aforementioned cavity is enclosed and formed by its roof, diapire and surrounding sidewall; Aforementioned loudspeaker are arranged at respectively the roof of elasticity wall body and wherein on two side, aforementioned tone chamber is formed at respectively between corresponding loudspeaker and the internal face of elasticity wall body.
10. according to a kind of loudspeaker sound cell structure described in any one in claim 1-9, it is characterized in that: described protecgulum and hard wall body are ABS or PC ebonite is made, aforementioned elasticity wall body is that TPE flexible glue is made.
CN201320415968.1U 2013-07-12 2013-07-12 Horn sound chamber structure CN203399243U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103414974A (en) * 2013-07-12 2013-11-27 东莞市启原实业有限公司 Loudspeaker sound chamber structure
CN107039027A (en) * 2016-10-28 2017-08-11 陈宏远 Tonequality optimizes resonator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103414974A (en) * 2013-07-12 2013-11-27 东莞市启原实业有限公司 Loudspeaker sound chamber structure
CN107039027A (en) * 2016-10-28 2017-08-11 陈宏远 Tonequality optimizes resonator

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140115

Termination date: 20150712