CN201860438U - Loudspeaker module - Google Patents

Loudspeaker module Download PDF

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Publication number
CN201860438U
CN201860438U CN2010205425518U CN201020542551U CN201860438U CN 201860438 U CN201860438 U CN 201860438U CN 2010205425518 U CN2010205425518 U CN 2010205425518U CN 201020542551 U CN201020542551 U CN 201020542551U CN 201860438 U CN201860438 U CN 201860438U
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CN
China
Prior art keywords
loud speaker
loudspeaker
module
cavity
loudspeaker unit
Prior art date
Application number
CN2010205425518U
Other languages
Chinese (zh)
Inventor
于豪
Original Assignee
康佳集团股份有限公司
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Application filed by 康佳集团股份有限公司 filed Critical 康佳集团股份有限公司
Priority to CN2010205425518U priority Critical patent/CN201860438U/en
Application granted granted Critical
Publication of CN201860438U publication Critical patent/CN201860438U/en

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Abstract

The embodiment of the utility model discloses a loudspeaker module, which comprises a box body and loudspeakers, wherein the integral shape of the box body is rectangular; at least one sealed cavity is arranged in the box body; loudspeaker units are arranged in the cavities, and each loudspeaker unit comprises even number of loudspeakers, and the connecting method of the loudspeakers adopts a push-pull type parallel connection; the box body further comprises a cavity, and the cavity is positioned on the rear side of the sealed cavity; a plurality channels of maze-type transmission lines are arranged in the cavity; and the loudspeakers in the loudspeaker units are micro loudspeakers. By adopting the loudspeaker module provided by the utility model, both the low frequency response and the sensitivity ratio outputted by the loudspeakers can be greatly improved, so that the energy is saved and the environment is protected; and compared with the conventional loudspeaker, the micro loudspeaker has a smaller volume, so that the raw material is also saved.

Description

A kind of loud speaker module

Technical field

The utility model relates to a kind of loud speaker field, relates in particular to a kind of loud speaker module.

Background technology

Development along with ultra-thin panel TV market, the design of its internal loudspeaker always is maximum challenge, owing to be subjected to restriction and its external Design needs attractive in appearance of ultra-thin panel TV size, a lot of loud speakers adopt openings or built-in design down, add the resonance of thin plastic cement shell of its panel TV itself and more inner parts, make that the sound that sends is unsatisfactory, especially the phenomenons such as housing resonance that the sound coloration of intermediate frequency (nasal sound phenomenon) phenomenon and low frequency cause are the most serious, and sensitivity is generally on the low side, and great majority are all below 80dB/1W/1M.

In addition, when loud speaker is installed at present, be in panel TV set, directly to pretend to answer the conventional loudspeakers of size mostly, its connected mode also only is simple series connection or parallel connection, makes that speaker operation efficient is lower, the low frequency transient response is good inadequately.Simultaneously because the diaphragm mass of conventional loudspeakers is heavier, and limit by the volume of panel TV and cost, magnetic circuit can not be done very greatly, makes high frequency good inadequately, and sensitivity is on the low side, and distortion is bigger than normal.Particularly its high frequency loss of the television set of the downward sounding of loud speaker is bigger, has wasted the energy, and the volume of conventional loudspeakers is bigger than normal, and then causes the waste on its material.

Summary of the invention

The utility model embodiment technical problem to be solved is, a kind of loud speaker module is provided, and the LF-response of loud speaker output is improved greatly.

In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of loud speaker module, comprise casing and loud speaker, the global shape of described casing is a cuboid, and be provided with at least one airtight chamber in this casing, be provided with loudspeaker unit in this chamber, described loudspeaker unit is made up of the even number loud speaker, and the connected mode of this loud speaker is the parallel pushpull formula.

Wherein, described loudspeaker unit comprises first loud speaker and second loud speaker of placement in the same way and same polarity parallel connection.

Described loudspeaker unit comprises first loud speaker and second loud speaker staggered relatively and that reversed polarity is in parallel.

Described loudspeaker unit comprises first loud speaker and second loud speaker of reverse placement and reversed polarity parallel connection.

Described airtight chamber is 4, and 4 groups of described loudspeaker units are set in it.

A loud speaker in every group of described 4 groups of loudspeaker units is revealed in the surface of described loud speaker module.

Also comprise a cavity in the described casing, this cavity is positioned at the rear side of described airtight chamber, and is provided with multiple tracks labyrinth type transmission line in the described cavity.

The loud speaker of described loudspeaker unit inside is a Microspeaker, and its volume is, and is wide 20 millimeters, long 30 millimeters, high 4.5 millimeters.

Implement the utility model embodiment, has following beneficial effect: by adopting the Microspeaker module of parallel pushpull formula, and cooperate mazy cavity design, make the LF-response and the sensitivity of loud speaker output improve greatly, and the medium-high frequency response is the congenital advantage that Microspeaker has.Because the raising of sensitivity makes to promote to reach very big output sound pressure level with less power, thereby has also reached the purpose of energy-conserving and environment-protective.Simultaneously since Microspeaker than the volume-diminished of conventional loudspeakers, and then on material, also save very much.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of first embodiment of the loud speaker module that provides of the utility model;

Fig. 2 is the top cross-sectional view of second embodiment of the loud speaker module that provides of the utility model;

Fig. 3 is the circuit connecting mode schematic diagram of the loud speaker module that provides of the utility model;

Fig. 4 is the overall appearance schematic diagram of the loud speaker module that provides of the utility model.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

Referring to Fig. 1, it is the structural representation of first embodiment of the loud speaker module that provides of the utility model, as shown in Figure 1, this loud speaker module comprises casing 10 and loud speaker 31 to 38, the global shape of described casing 10 is a cuboid, and be provided with 4 airtight chamber in this casing 10, be respectively airtight chamber 11, airtight chamber 12, airtight chamber 13, airtight chamber 14, loud speaker 31,32 first group of loudspeaker unit forming are arranged at airtight chamber 11, loud speaker 33,34 second group of loudspeaker unit forming are arranged at airtight chamber 12, loud speaker 35,36 the 3rd group of loudspeaker units of forming are arranged at airtight chamber 13, loud speaker 37,38 the 4th group of loudspeaker units of forming are arranged at airtight chamber 14.Wherein loud speaker 31,32 parallel connection and symmetrical operations, loud speaker 33,34 parallel connection and symmetrical operations, loud speaker 35,36 parallel connection and symmetrical operations, loud speaker 37,38 parallel connection and symmetrical operations.

" symmetrical operation " described here is meant likens into two " arms " with 2 loud speakers in the described loudspeaker unit, and when the electric current of " arm " increased, the electric current of another " arm " then reduced, the status wheel stream translation of the two.For load, similarly be that one " arm " pushing away, one " arm " drawing, and finishes electric current output task jointly.

This loud speaker module is arranged in the airtight cavity by the loudspeaker unit that the loud speaker of two parallel connections and symmetrical operation is formed, so that the sound of this loudspeaker unit output same phase, simultaneously, air is spouting through the overcompression post acceleration in this airtight cavity, so the LF-response of its loud speaker will improve greatly.

Referring to Fig. 2, it is the top cross-sectional view of second embodiment of the loud speaker module that provides of the utility model, as shown in Figure 2, this loud speaker module comprises casing 10 and loud speaker 31 to 38, the global shape of described casing 10 is a cuboid, and be provided with 4 airtight chamber in this casing 10, be respectively airtight chamber 11, airtight chamber 12, airtight chamber 13, airtight chamber 14, loud speaker 31,32 first group of loudspeaker unit forming are arranged at airtight chamber 11, loud speaker 33,34 second group of loudspeaker unit forming are arranged at airtight chamber 12, loud speaker 35,36 the 3rd group of loudspeaker units of forming are arranged at airtight chamber 13, loud speaker 37,38 the 4th group of loudspeaker units of forming are arranged at airtight chamber 14.Wherein loud speaker 31,32 parallel connection and symmetrical operations, loud speaker 33,34 parallel connection and symmetrical operations, loud speaker 35,36 parallel connection and symmetrical operations, loud speaker 37,38 parallel connection and symmetrical operations.

The casing 10 of the loud speaker module described in Fig. 2 also comprises cavity 25, and this cavity 25 is positioned at the rear side of described airtight chamber 11 to 14, is provided with labyrinth type transmission line 26 in this cavity 25.Described labyrinth type transmission line 26 is meant that the rear side in airtight chamber 11 to 14 is provided with the acoustic conducting pipe made from sound absorption property wallboard, its objective is that the cavity 25 of the rear side that makes airtight chamber 11 to 14 becomes acoustic conduit.When the length of acoustic conduit equals 1/2 wavelength of a certain frequency, the sound wave phase place that radiates from catheter opening is just in time consistent with the sound wave of speaker awl basin head-on radiation, the low frequency of loud speaker module output is strengthened, be labyrinth-like because described acoustic conduit is folded, so be called the labyrinth type transmission line.

This loud speaker module is installed in the airtight cavity by the loudspeaker unit that the loud speaker of two parallel connections and symmetrical operation is formed, so that the sound of this loudspeaker unit output same phase, simultaneously, air is spouting through the overcompression post acceleration in this airtight cavity, pass through multiple tracks labyrinth type transmission line again, prolonged the catheter length of sound effectively, so will improve the LF-response of loud speaker better.

Referring to Fig. 3, it is the circuit connecting mode schematic diagram of the utility model loud speaker module, as shown in Figure 3, the loud speaker module that the utility model provides has adopted 8 loud speakers, being divided into is 4 groups, comprising: first group of loudspeaker unit that loud speaker 31,32 is formed, second group of loudspeaker unit that loud speaker 33,34 is formed, the 3rd group of loudspeaker unit that loud speaker 35,36 is formed, and the 4th group of loudspeaker unit of loud speaker 37,38 compositions.

Loud speaker 31,32 connected mode can be to place in the same way and the parallel connection of peer's property, or it is staggered relatively and reversed polarity is in parallel, or oppositely place and the reversed polarity parallel connection, in like manner, loud speaker 33,34 connected mode can be to place in the same way and the parallel connection of peer's property, or it is staggered relatively and reversed polarity is in parallel, or oppositely place and the reversed polarity parallel connection, loud speaker 35,36 connected mode can be to place in the same way and the parallel connection of peer's property, or staggered relatively and reversed polarity is in parallel, or oppositely place and the reversed polarity parallel connection loud speaker 37,38 connected mode can be to place in the same way and the parallel connection of peer's property, or staggered relatively and reversed polarity is in parallel, or oppositely place and the reversed polarity parallel connection.

Referring to Fig. 4, be the overall appearance schematic diagram of the loud speaker module that provides of the utility model, as shown in Figure 4, the global shape of this loud speaker module is a cuboid 4, loud speaker 32,34,36,38 is revealed in the surface of described loud speaker module.

Loud speaker 31 in the described loud speaker module of the utility model embodiment is a Microspeaker to loud speaker 38, and its volume is, and is wide 20 millimeters, long 30 millimeters, high 4.5 millimeters.

In sum, this loud speaker module utilizes wide 20 millimeters, long 30 millimeters, 4 groups of high 4.5 millimeters micro loudspeaker units, because every group of loudspeaker unit is to place in the same way and the same polarity parallel connection in an airtight chamber, so that respectively organize the sound of loudspeaker unit output same phase, simultaneously, this loud speaker module has also designed the labyrinth type transmission line in its inside cavity, prolong the catheter length of sound effectively, also had the paraphase hole of suitable dimension simultaneously at the back of loud speaker module, made the sound wave air after overcompression, eject, through returning the place ahead after the metope reflection, strengthened bass effect effectively.Make undersized loud speaker like this also can send resonant voice.

Simultaneously because the loud speaker volume in the loud speaker module is little, its vibrating diaphragm is very frivolous, so the transient response of this loud speaker is very good, in order to overcome the situation that the high frequency when the under shed of loud speaker in the background technology can lose, behind the vibrating diaphragm of particular design proterties, make high band promote about 5dB at 5K HZ backward.

Since the sensitivity of Microspeaker than before the sensitivity of conventional loudspeakers improve more, so can reach very big output sound pressure level with less power promotion, thereby reach the purpose of energy-conserving and environment-protective.Simultaneously because the loud speaker volume is very little, so on material, also relatively save.

Here it may be noted that, loudspeaker unit in the loud speaker module described in the utility model is not limited to 4 groups, and the quantity of loud speaker is the loud speaker of the even number parallel pushpull formula more than two in every group of loudspeaker unit, described airtight chamber will be provided with according to the quantity of loudspeaker unit, and what of labyrinth type transmission line can be according to the design of the flexible in size of loud speaker module volume, and the long more frequency response of the length of transmission line is low more.

The above preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.

Claims (10)

1. loud speaker module, it is characterized in that, comprise casing and loud speaker, the global shape of described casing is a cuboid, and be provided with at least one airtight chamber in this casing, be provided with loudspeaker unit in this chamber, described loudspeaker unit is made up of the even number loud speaker, and the connected mode of this loud speaker is the parallel pushpull formula.
2. loud speaker module as claimed in claim 1 is characterized in that, described loudspeaker unit comprises first loud speaker and second loud speaker of placement in the same way and same polarity parallel connection.
3. loud speaker module as claimed in claim 1 is characterized in that, described loudspeaker unit comprises first loud speaker and second loud speaker staggered relatively and that reversed polarity is in parallel.
4. loud speaker module as claimed in claim 1 is characterized in that, described loudspeaker unit comprises first loud speaker and second loud speaker of reverse placement and reversed polarity parallel connection.
5. as each described loud speaker module in the claim 2 to 4, it is characterized in that described airtight chamber is 4,4 groups of described loudspeaker units are set in it.
6. loud speaker module as claimed in claim 5 is characterized in that, a loud speaker in every group of described 4 groups of loudspeaker units is revealed in the surface of described loud speaker module.
7. as each described loud speaker module in the claim 1 to 6, it is characterized in that also comprise a cavity in the described casing, this cavity is positioned at the rear side of described airtight chamber.
8. loud speaker module as claimed in claim 7 is characterized in that, is provided with multiple tracks labyrinth type transmission line in the described cavity.
9. loud speaker module as claimed in claim 1 is characterized in that, the loud speaker of described loudspeaker unit inside is a Microspeaker.
10. loud speaker module as claimed in claim 9 is characterized in that, the volume of described Microspeaker is: wide 20 millimeters, long 30 millimeters, high 4.5 millimeters.
CN2010205425518U 2010-09-25 2010-09-25 Loudspeaker module CN201860438U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205425518U CN201860438U (en) 2010-09-25 2010-09-25 Loudspeaker module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205425518U CN201860438U (en) 2010-09-25 2010-09-25 Loudspeaker module

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CN201860438U true CN201860438U (en) 2011-06-08

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102711011A (en) * 2012-01-04 2012-10-03 瑞声声学科技(深圳)有限公司 Two-circuit electroacoustic conversion device
CN102802100A (en) * 2012-08-25 2012-11-28 歌尔声学股份有限公司 Speaker module
CN102938869A (en) * 2012-11-27 2013-02-20 山东共达电声股份有限公司 Method for realizing small back cavity micro speaker system low frequency response through utilizing front resonant cavity
CN103248981A (en) * 2012-02-06 2013-08-14 王永明 Loudspeaker
CN104378711A (en) * 2014-12-02 2015-02-25 北京京东方多媒体科技有限公司 Loudspeaker and television with same
CN104756515A (en) * 2012-12-28 2015-07-01 京瓷株式会社 Sound emitter and electronic apparatus employing same
CN107205197A (en) * 2016-03-16 2017-09-26 瑞轩科技股份有限公司 Balance push-pull type loudspeaker device and its control method, audio frequency processing circuit and method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102711011A (en) * 2012-01-04 2012-10-03 瑞声声学科技(深圳)有限公司 Two-circuit electroacoustic conversion device
CN102711011B (en) * 2012-01-04 2014-11-26 瑞声声学科技(深圳)有限公司 Two-circuit electroacoustic conversion device
CN103248981B (en) * 2012-02-06 2016-06-01 王永明 A kind of speaker
CN103248981A (en) * 2012-02-06 2013-08-14 王永明 Loudspeaker
CN102802100A (en) * 2012-08-25 2012-11-28 歌尔声学股份有限公司 Speaker module
CN102802100B (en) * 2012-08-25 2015-08-05 歌尔声学股份有限公司 Loud speaker module
CN102938869B (en) * 2012-11-27 2016-04-06 山东共达电声股份有限公司 Before utilizing, resonant cavity realizes the method for little back cavity micro speaker system LF-response
CN102938869A (en) * 2012-11-27 2013-02-20 山东共达电声股份有限公司 Method for realizing small back cavity micro speaker system low frequency response through utilizing front resonant cavity
CN104756515A (en) * 2012-12-28 2015-07-01 京瓷株式会社 Sound emitter and electronic apparatus employing same
CN104378711A (en) * 2014-12-02 2015-02-25 北京京东方多媒体科技有限公司 Loudspeaker and television with same
WO2016086645A1 (en) * 2014-12-02 2016-06-09 京东方科技集团股份有限公司 Loudspeaker, television set with same and multimedia device
CN104378711B (en) * 2014-12-02 2018-06-22 北京京东方多媒体科技有限公司 A kind of loud speaker and the television set equipped with the loud speaker
US10291984B2 (en) 2014-12-02 2019-05-14 Boe Technology Group Co., Ltd. Speaker, television provided with the speaker and multimedia device
CN107205197A (en) * 2016-03-16 2017-09-26 瑞轩科技股份有限公司 Balance push-pull type loudspeaker device and its control method, audio frequency processing circuit and method
CN107205197B (en) * 2016-03-16 2019-05-14 瑞轩科技股份有限公司 Balance push-pull type loudspeaker device and its control method, audio frequency processing circuit and method

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

Granted publication date: 20110608

Termination date: 20170925

CF01 Termination of patent right due to non-payment of annual fee