CN209390294U - Loudspeaker enclosure - Google Patents

Loudspeaker enclosure Download PDF

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Publication number
CN209390294U
CN209390294U CN201822278779.XU CN201822278779U CN209390294U CN 209390294 U CN209390294 U CN 209390294U CN 201822278779 U CN201822278779 U CN 201822278779U CN 209390294 U CN209390294 U CN 209390294U
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CN
China
Prior art keywords
casing
loudspeaker
vibrating diaphragm
loudspeaker enclosure
roof
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CN201822278779.XU
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Chinese (zh)
Inventor
沈凯华
吴军
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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Priority to CN201822278779.XU priority Critical patent/CN209390294U/en
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Abstract

The utility model provides a kind of loudspeaker enclosure.The loudspeaker enclosure includes upper casing, the loudspeaker monomer for forming the lower casing of accommodating space with top shells fit and being contained in accommodating space, accommodating space is separated into ante-chamber and back cavity by loudspeaker monomer, loudspeaker monomer includes vibrating diaphragm, vibrating diaphragm and upper casing interval are arranged to form the preceding operatic tunes, upper casing, which is formed with, is connected to the preceding operatic tunes and extraneous channel of speaking, it speaks channel and the preceding operatic tunes collectively forms ante-chamber, upper casing includes and the spaced roof of vibrating diaphragm, roof includes the inner surface and the outer surface that is oppositely arranged with inner surface close to vibrating diaphragm, outer surface is formed with resonant cavity towards vibrating diaphragm direction recess, resonant cavity is formed with opening in outer surface, resonant cavity is connected to ante-chamber, the loudspeaker enclosure further includes the cover board that lid set and sealed the opening.High-frequency resonant peak value and sensitivity can be effectively reduced in loudspeaker enclosure provided by the utility model, improves the acoustical behavior of the loudspeaker enclosure.

Description

Loudspeaker enclosure
[technical field]
The utility model relates to electroacoustic conversion art more particularly to a kind of loudspeaker enclosures.
[background technique]
Recently as the fast development of mobile communication technology, consumer is more and more using the shifting for having phonetic function Dynamic communication apparatus, such as: portable phone, handheld device and laptop computer etc..Playing device of the loudspeaker enclosure as voice, It designs the speech performance that quality directly affects mobile communication equipment product.In order to meet market for slimming and high tone quality Demand, to the design of loudspeaker enclosure, more stringent requirements are proposed.
In the related technology, loudspeaker enclosure includes upper casing, lower casing and loudspeaker monomer, and loudspeaker monomer includes vibrating diaphragm, vibrating diaphragm The preceding operatic tunes is formed with upper casing interval, the side wall of speak channel forming and upper casing, the preceding operatic tunes and channel of speaking constitute ante-chamber, such Structure can generate a formant in high frequency frequency response;With popularizing for mobile phone terminal stereo applications, loudspeaker is no longer pursued excessively high High frequency frequency response, and (especially 4000Hz to 6000Hz) is excessively high to will lead to sound is ear-piercing, labiodental is sharp etc. to high frequency frequency response The bad problem of sound quality.
Therefore, it is necessary to provide the new loudspeaker enclosure of one kind to solve drawbacks described above.
[utility model content]
The purpose of the utility model is to overcome above-mentioned technical problem, it is simple and can effectively reduce harmonic high frequency to provide a kind of structure Vibration peak value, the loudspeaker enclosure for improving high frequency frequency response.
To achieve the goals above, the utility model provides a kind of loudspeaker enclosure, including upper casing and the top shells fit shape Lower casing at accommodating space and the loudspeaker monomer that is contained in the accommodating space, the loudspeaker monomer is by the receipts Hold space and be separated into ante-chamber and back cavity, the loudspeaker monomer includes the vibrating diaphragm for vibration sounding, the vibrating diaphragm and it is described on Shell interval is arranged to form the preceding operatic tunes, and the upper casing, which is formed with, is connected to the preceding operatic tunes and extraneous channel of speaking, it is described speak it is logical Road and the preceding operatic tunes collectively form the ante-chamber, and the upper casing includes and the spaced roof of the vibrating diaphragm, the roof Including close to the vibrating diaphragm inner surface and the outer surface that is oppositely arranged with the inner surface, the outer surface is towards the vibrating diaphragm Direction recess is formed with resonant cavity, and the resonant cavity is formed with opening in the outer surface, and the resonant cavity and the ante-chamber connect Logical, the loudspeaker enclosure further includes the cover board that lid set and sealed the opening.
Preferably, the cover board is PET sheet, sheet or steel disc.
Preferably, the upper casing further include from the edge of the roof towards the lower casing direction bend extend and with it is described under The fixed side wall of shell, from the roof to extend close to the vibrating diaphragm direction and carry the loudspeaker monomer supporting walls and Extend and surround the bracket of the resonant cavity from the roof to close to the vibrating diaphragm direction, the supporting walls are equipped with notch, institute It states notch and is connected to the resonant cavity and the ante-chamber.
Preferably, the side wall it is corresponding described in the speak position in channel offer out acoustic aperture, the upper casing further includes one end The partition that the loudspeaker monomer other end extends to the acoustic aperture out is abutted, the channel of speaking is formed in the partition and institute It states between roof.
Preferably, the partition and the bracket are located at the opposite sides of the loudspeaker monomer.
Preferably, the bracket includes bottom plate opposite and spaced with cover board and the connection bottom plate and the roof Side plate, the bottom plate extends to the supporting walls, and the cover plate lid is set to the side plate.
Preferably, groove of the outer surface towards the inner surface direction concave shape cyclization around the opening, the cover board It is covered on the groove.
Preferably, the roof, the side wall, the bracket and the partition are integrally formed.
Compared with the relevant technologies, in loudspeaker enclosure provided by the utility model, by the way that the resonant cavity being connected to ante-chamber is arranged, High-frequency resonant peak value and sensitivity can be effectively reduced;The bracket for surrounding the resonant cavity simultaneously is contained in the loudspeaker enclosure Accommodating space in, and be located at the supporting walls side, be not take up the height space of the loudspeaker enclosure, can satisfy loudspeaking The lightening design requirement of device case.
[Detailed description of the invention]
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings, in which:
Fig. 1 is the schematic perspective view of loudspeaker enclosure provided by the utility model;
Fig. 2 is the decomposition texture schematic diagram of loudspeaker enclosure shown in FIG. 1;
Fig. 3 is another angle schematic diagram of upper casing shown in FIG. 1;
Fig. 4 is cross-sectional view of the loudspeaker enclosure shown in FIG. 1 along line A-A;
Fig. 5 is the frequency response curve figure of loudspeaker enclosure and loudspeaker enclosure provided by the utility model in the related technology.
[specific embodiment]
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work All other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1 to Fig. 4, the utility model provides a kind of loudspeaker enclosure 100, and the loudspeaker enclosure 100 includes Upper casing 1, lower casing 2, the loudspeaker monomer 3 with vibrating diaphragm 31, cover board 4, resonant cavity 10, the preceding operatic tunes 20, channel 30 of speaking, ante-chamber 40 And back cavity 50.
The upper casing 1 for carrying and protecting the loudspeaker monomer 3, the lower casing 2 be covered on the upper casing 1 and with institute It states upper casing 1 and cooperatively forms accommodating space, the loudspeaker monomer 3 is contained in the accommodating space, and by the accommodating space It is separated into the ante-chamber 40 and the back cavity 50.The vibrating diaphragm 31 is used for vibration sounding, and the upper casing 1 is spaced with the vibrating diaphragm 31 Setting forms the preceding operatic tunes 20.The channel 30 of speaking is formed in the upper casing 1, and is connected to the preceding operatic tunes 20 and the external world, The channel 30 of speaking collectively forms the ante-chamber 40 with the preceding operatic tunes 20.
The upper casing 1 includes with the roof 11 of 31 relative spacing of vibrating diaphragm setting, from the edge of the roof 11 towards institute It states 2 direction of lower casing and bends the side wall 12 for extending and fixing with the lower casing 2, from the roof 11 to close to 31 direction of vibrating diaphragm Extend and carries the supporting walls 13 of the loudspeaker monomer 3 and extend simultaneously from the roof 11 to close to 31 direction of vibrating diaphragm Surround the bracket 14 of the resonant cavity 10.
The roof 11 includes the inner surface 111 of the close vibrating diaphragm 31 and is oppositely arranged with the inner surface 111 outer Surface 112, the resonant cavity 10 are recessed towards 31 direction of vibrating diaphragm by the outer surface 112 and are formed.
The resonant cavity 10 is formed with opening 101 in the outer surface 112.Further, the outer surface 112 is towards described Around the groove 102 of the opening 101, the groove 102 101 is connected to 111 direction concave shape cyclization of inner surface with described be open.
Speak described in the side wall 12 the is corresponding position in channel 30 offers out acoustic aperture 120, for by sound conduction to outer Boundary, the upper casing 1 further include that one end abuts the partition 15 that 3 other end of loudspeaker monomer extends to the acoustic aperture 120 out, institute Channel 30 of speaking is stated to be formed between roof 11 described in the partition 15.
The bracket 14 includes bottom plate 141 opposite and spaced with the cover board 4 and connect the bottom plate 141 and institute The side plate 142 of roof 11 is stated, the bottom plate 141 extends to the supporting walls 13, and the cover board 4 is covered on the groove 102 simultaneously Abut the side plate 142.The bracket 14 is located at the opposite sides of the loudspeaker monomer 3, and the top with the partition 15 Wall 11, the side wall 12, the bracket 14 and the partition 15 are integrally formed, and the height for being not take up the loudspeaker enclosure 100 is empty Between, meet the lightening design requirement of the loudspeaker enclosure 100.
Preferably, the thickness of the cover board 4 and the depth of the groove 102 match, and the cover board 4 is installed on the top When on wall 11, the upper surface of the cover board 4 is generally aligned in the same plane with the outer surface 112, does not influence the loudspeaker enclosure 100 Overall appearance.Further, the cover board 4 is PET sheet, sheet or steel disc.
Based on helmholtz resonance principle, the resonant cavity 10 can be formed in the resonance peak position of the ante-chamber 40 itself Antiresonance so as to improve the flatness of 100 high frequency frequency response of loudspeaker enclosure, while also can be effectively reduced noise by before described The effect of 40 resonance of chamber amplification, can be effectively improved the acoustical behavior of the loudspeaker enclosure 100.Referring to Fig. 5, wherein curve I is The loudspeaker enclosure frequency response curve figure of the relevant technologies;Curve II is a kind of loudspeaker enclosure of resonant cavity size provided by the utility model Frequency response curve figure;Curve III is the frequency response curve figure of the loudspeaker enclosure of another resonant cavity size provided by the utility model. In conjunction with curve I, curve II and the curve III in Fig. 5 it is found that in the frequency range of 4000Hz to 6000Hz, frequency response is obviously dropped It is low.It is understood that passing through the size for adjusting the bracket 14, thus it is possible to vary the size of the resonant cavity 10, to reach Optimal sound effective value out.
Compared with the relevant technologies, in loudspeaker enclosure 100 provided by the utility model, by be arranged be connected to ante-chamber 40 it is humorous Shake chamber 10, and high-frequency resonant peak value and sensitivity can be effectively reduced;The bracket 14 for surrounding the resonant cavity 10 simultaneously is contained in In the accommodating space of the loudspeaker enclosure 100, and it is located at the side of the supporting walls 13, is not take up the loudspeaker enclosure 100 Height space can satisfy the lightening design requirement of loudspeaker enclosure 100.
Above-described is only the embodiments of the present invention, it should be noted here that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to it is practical Novel protection scope.

Claims (8)

1. a kind of loudspeaker enclosure forms the lower casing of accommodating space including upper casing, with the top shells fit and is contained in the receipts Hold the loudspeaker monomer in space, the accommodating space is separated into ante-chamber and back cavity, the loudspeaker by the loudspeaker monomer Monomer includes the vibrating diaphragm for vibration sounding, and the vibrating diaphragm and the upper casing interval are arranged to form the preceding operatic tunes, and the upper casing is formed Having and is connected to the preceding operatic tunes and extraneous channel of speaking, the channel of speaking collectively forms the ante-chamber with the preceding operatic tunes, Be characterized in that, the upper casing include with the spaced roof of the vibrating diaphragm, the roof includes the interior table close to the vibrating diaphragm Face and the outer surface being oppositely arranged with the inner surface, the outer surface are formed with resonant cavity towards vibrating diaphragm direction recess, The resonant cavity is formed with opening in the outer surface, and the resonant cavity is connected to the ante-chamber, and the loudspeaker enclosure further includes Lid sets and seals the cover board of the opening.
2. loudspeaker enclosure according to claim 1, which is characterized in that the cover board is PET sheet, sheet or steel disc.
3. loudspeaker enclosure according to claim 1, which is characterized in that the upper casing further includes the edge court from the roof The lower casing direction bends the side wall for extending and fixing with the lower casing, extends simultaneously from the roof to close to the vibrating diaphragm direction It carries the supporting walls of the loudspeaker monomer and extends from the roof to the close vibrating diaphragm direction and surround the resonant cavity Bracket, the supporting walls are equipped with notch, and the notch is connected to the resonant cavity and the ante-chamber.
4. loudspeaker enclosure according to claim 3, which is characterized in that open the position in channel of speaking described in the side wall is corresponding Equipped with acoustic aperture out, the upper casing further includes that one end abuts the partition that the loudspeaker monomer other end extends to the acoustic aperture out, The channel of speaking is formed between the partition and the roof.
5. loudspeaker enclosure according to claim 4, which is characterized in that the partition and the bracket are located at the loudspeaker The opposite sides of monomer.
6. loudspeaker enclosure according to claim 5, which is characterized in that the bracket includes opposite with cover board and interval setting Bottom plate and the connection bottom plate and the roof side plate, the bottom plate extends to the supporting walls, and the cover plate lid is set to The side plate.
7. loudspeaker enclosure according to claim 1, which is characterized in that the outer surface is towards inner surface direction concave shape Cyclization is around the groove of the opening, and the cover plate lid is set on the groove.
8. loudspeaker enclosure according to claim 6, which is characterized in that the roof, the side wall, the bracket and described Partition is integrally formed.
CN201822278779.XU 2018-12-30 2018-12-30 Loudspeaker enclosure Active CN209390294U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822278779.XU CN209390294U (en) 2018-12-30 2018-12-30 Loudspeaker enclosure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822278779.XU CN209390294U (en) 2018-12-30 2018-12-30 Loudspeaker enclosure

Publications (1)

Publication Number Publication Date
CN209390294U true CN209390294U (en) 2019-09-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822278779.XU Active CN209390294U (en) 2018-12-30 2018-12-30 Loudspeaker enclosure

Country Status (1)

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CN (1) CN209390294U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112367574A (en) * 2020-09-29 2021-02-12 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker and electronic terminal
WO2021092972A1 (en) * 2019-11-12 2021-05-20 瑞声声学科技(深圳)有限公司 Electronic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021092972A1 (en) * 2019-11-12 2021-05-20 瑞声声学科技(深圳)有限公司 Electronic device
CN112367574A (en) * 2020-09-29 2021-02-12 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker and electronic terminal

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