1308029 九、發明說明·· 【發明所屬之技術領域】 本發明涉及-種移動電話，尤指_種移動電話音箱結構。 【先前技術】 近年來，隨著齡產業的快速發展，移動電話的需求量大增，移 =話作爲人_通信4，其最基本的功能麟送語音、音樂等聲 ’爲將電減雜爲機構震紐産生聲音，又或將聲音轉換爲 以”必須具備電聲轉換树’在電聲轉換的元件中，最 廣泛應用的就是揚聲器。 於έ ί年來，爲滿足?費者便攜性等方面的要求，移動電話等電子元 η紐、小、輕、薄的發展方向不斷進步與改善，因此，移動電話 用的揚聲器尺寸大小亦受到限制，爲達到較好的共振效果，通 =直接鑛電話_部㈣作麟聲㈣共振腔，轉其發聲品 質。 =有移動電話-般于其内部形成有一密閉的腔體，並將揚聲器安 Μ ^腔’從*揚聲器的前向輻射聲波與後向輻射聲波完全隔 Μ膜振動推動空氣動作時’腔體内的空氣具有類似彈簧的作用， it，腔=容積實際上在增大，密_腔體導致腔體内外的空氣壓力 揚聲器的振膜由於腔體内外空氣的壓力差而被迅速的壓回，抑 線性位移’使得揚聲器的衝程變短，而由於低頻回放聲 沾你訪揚聲器振膜所能推動的空氣量大致成正比例關係，揚聲器 ’衝程與振膜面積的乘積，即振赌能推動的空氣量亦相 從*使得音箱的最低共振鱗較高，低_放效果較差。 的，頻響應效果則需要增加腔體的體積以提升揚聲器振膜 &的空氣量，相應的則要增加移動電話的體積，此與現今電子 産品的發展趨勢相悖。 【發明内容】 話的有必要提供—種低伽放效果好且體積較小的移動電 1308029 該種移動電話音箱結構，包括—盒體，該盒體内設有一丘振腔， 該盒體壁面設有-與外部環境相連通的通音孔，該共振腔與^音孔之 間設有一兩端分別與共振腔及通音孔相連通的通道。 該種移動電話音箱結構配合移動電話的内部結構進行共振腔的結 構設計’共隸秘通道與外部魏賴，使細所推触氣的 增大，'低頻回放效果好，增強聲音質感。 【實施方式】 下面參照附圖，結合實施例作進一步說明。1308029 IX. INSTRUCTION DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a mobile phone, and more particularly to a mobile phone speaker structure. [Prior Art] In recent years, with the rapid development of the industry, the demand for mobile phones has increased greatly. Shift = words as people _ communication 4, and its most basic function is to send voice, music, etc. Produce sound for the mechanism shock, or convert the sound into a component that must be equipped with an electroacoustic conversion tree in electroacoustic conversion. The most widely used is the speaker. In the years since έ, in order to meet the portability of the fee, etc. In terms of requirements, the development direction of electronic telephones such as mobile phones, such as small, light, and thin, has been continuously improved and improved. Therefore, the size of speakers for mobile phones is also limited. To achieve better resonance effects, pass = direct mine Telephone _ part (four) for the sound of the sound (four) resonant cavity, turn its sound quality. = There is a mobile phone - generally formed inside a closed cavity, and the speaker is installed ^ cavity 'from the front of the * speaker radiated sound waves and When the radiated sound wave completely separates the diaphragm vibration and pushes the air action, the air in the cavity has a spring-like effect. It, the cavity = the volume is actually increasing, and the dense cavity causes the air pressure inside and outside the cavity to rise. The diaphragm of the device is quickly pressed back due to the pressure difference between the air inside and outside the chamber, and the linear displacement makes the stroke of the speaker shorter, and the amount of air that can be pushed by the low-frequency playback sound to the speaker diaphragm is roughly proportional. Relationship, the product of the speaker's stroke and the area of the diaphragm, that is, the amount of air that can be pushed by the bet is also from * so that the lowest resonance scale of the speaker is higher, and the lower _ discharge effect is worse. The frequency response effect needs to increase the cavity. The volume is to increase the air volume of the speaker diaphragm & the corresponding increase in the volume of the mobile phone, which is contrary to the development trend of today's electronic products. [Summary] It is necessary to provide a low-gain effect and volume. Small mobile power 1308029 The mobile phone speaker structure comprises a box body, and a cavity chamber is arranged in the box body, and the wall surface of the box body is provided with a sound hole communicating with the external environment, the resonance cavity and the ^ There is a channel between the sound holes respectively communicating with the resonant cavity and the sound hole. The structure of the mobile phone speaker cooperates with the internal structure of the mobile phone to construct the resonant cavity. 'Co-Wei Li Lai secret channel with the external, so that the increase in the fine contact pushing gas, the' good bass playback, enhancing the texture. [Embodiment Referring to the drawings, embodiments will be further described in conjunction with embodiments.
如第-圖所示爲移動電話結構示意圖，其包括—外形大致呈長方 體狀的盒體10 ’該盒體10靠近其底部區域形成一按鍵區U，盒體1〇 的中央區域形成-顯示區I4，頂端則形成一發聲區16。 ^ 二f所示爲形成于發聲區16内的空腔結構⑽的立體示音 圖’圖中以虛線表示空腔結構_的外形，空腔結構内設有一^ 電訊號轉减結構振動産生聲音的揚聲㈣。該錄結構⑽包括丄 共雛20，一與共振腔20相連通的通道3〇， : 且將該通道3G斜界魏魏的通音孔4Q。 』的側壁FIG. 1 is a schematic structural view of a mobile phone, which includes a box body 10 having a substantially rectangular parallelepiped shape. The box body 10 forms a button area U near a bottom portion thereof, and a central portion of the box body 1 is formed into a display area. At the top of I4, a sounding zone 16 is formed. ^ 二 f is a stereophonic diagram of the cavity structure (10) formed in the sound-emitting area 16 'the outline of the cavity structure _ is shown by a broken line in the figure, and a ^ signal-reduction structure vibration is generated in the cavity structure to generate sound The voice of the (four). The recording structure (10) includes a cymbal 20, a channel 3 连通 that is in communication with the resonant cavity 20, and a channel 4G that slanted the channel to the Wei Wei. Side wall
^腔2G呈®形域，揚聲n 5()設於共 的上壁處，對應該揚聲器50位置各許1n认甘L批門1罪迎|體丄U 18(參見第一圖)>共振腔20的一侧對應通音孔 ΐ面通音孔40延伸形成該通道3G，騎道3〇二橫 截面呈方开/ ’該通g孔4〇與該通道％的外 =構，及此該空腔結構^形成-類似于亥姆霍華二』 it的頸部240 ,其中頸部24Q内的空氣 ^=的聲~空間相連 空氣具雜氣彈簀的作用，即認驗^^爲二質讀，紐220内的 動能集中於頸部240肉心亥姆霍雄共振腔200⑺空氣振動的 料右II、㈣方μ工虱的運動’勢能僅與空腔220内空氣的彈性 ㈣^ _軸瞻謂响鲜㈣罐 。其中c :音速㈣；s :頸部240的橫截面積(m2); v:空 1308029 腔220的體積(m3) ; 1’ ：共振等效長度，丨，視頸部24〇的橫截面形狀 不同，不同’大致與頸部240的深度及其橫截面直徑呈正比，如頭部 240橫截面爲圓形時，i’=1+0 8(J(其中i爲頸部24〇的深度，d爲頸部24〇 的孔徑），在此頻率下頸部240内空氣的振動速度達到最大。由上述公 式可知’在音箱的設計中’共振腔2〇的形狀、體積，以及通道3〇的 形狀、長度決定了空腔結構1〇〇的共振頻率。^ Cavity 2G is a ®-shaped domain, the speaker n 5 () is located at the upper wall of the common, corresponding to the position of the speaker 50, each 1n recognition Gan L batch door 1 sin | body 丄 U 18 (see the first figure) gt One side of the resonant cavity 20 corresponds to the sound hole, and the sound hole 40 extends to form the channel 3G, and the cross section of the rideway 3〇 is square open / 'the pass g hole 4〇 and the outer % of the channel, And the cavity structure ^ is formed - similar to the neck 240 of Helm Howard II it, wherein the air in the neck 24Q is sound-space-connected to the air with the function of the air-elastic magazine, that is, the recognition ^ ^ For the second reading, the kinetic energy in the New 220 is concentrated in the neck 240 flesh heart Helmhoxi resonance cavity 200 (7) air vibration material right II, (four) square μ work motion 'potential energy only with the air elasticity of the cavity 220 (4) ^ _ Axis is known as the fresh (four) cans. Where c: sonic velocity (four); s: cross-sectional area of the neck 240 (m2); v: empty 1308029 volume of the cavity 220 (m3); 1': resonance equivalent length, 丨, cross-sectional shape of the neck 24 视Different, the difference 'is roughly proportional to the depth of the neck 240 and its cross-sectional diameter. If the cross section of the head 240 is circular, i' = 1 + 0 8 (J (where i is the depth of the neck 24 ,, d is the aperture of the neck 24 )), at which the vibration velocity of the air in the neck 240 is maximized. From the above formula, it can be seen that 'the shape and volume of the cavity 2 在 in the design of the speaker, and the channel 3 〇 The shape and length determine the resonant frequency of the cavity structure 1〇〇.
當移動電話10處於通信狀態時，經由電路將電訊號轉換爲振膜的 震動’此時共振腔20氣在振賴振動下觀纖縮，此時若輸 入該共振腔2〇的鮮與該共振腔m的固錢糊等，則會推動通道 30内的空氣發生高速的振動，通道3〇關烈高速的空氣在通道3〇的 出口’即通音孔4G處推料界的空氣，纽強大的聲波。由於該種空 腔結構100中共振腔20經由通道3〇與外界相通，因此共振腔2〇内的 空氣壓力與外界域壓力相差从，揚鞋5G的細的衝程運動不會 由於内外錢的壓力差碰迅速的驗，目麟聲器5()的振膜的衝程 相對增大’振膜衝程與振膜面積的乘積，即振膜所推動的體積增 大，而低頻回放聲鱗壓級與揚聲器5G的振膜所能推動的空氣量大致 成正比例關係，因此該種空腔結構伽有效的降低了共振頻率，可以 得到更好的低頻下潛絲，從轉得良好的低_放效果。 Γ 構5GG另—實施方式示意冑，該錄結構 圓形映^之处在於·共振腔520呈不規則形狀，其包括—圓形柱狀的 * 2及呈長方體狀的方形腔524，其中該圓形腔522與方形腔 f且部分被，形成所述的不規驗共振腔52G。通道530自 方形腔524相交的部位向外延伸至通音孔處，如第五圖 in'結構共_麵難職®從獨角度的視 條越密’職越強，空腔 每㈣1449Η左右，採賴種空腔結構的移動電 忒9ΗΖ左右的優良低頻回放效果，提升了在低頻時聲音的質 520° 同的内部結構以及各種揚聲器結構，該共振腔2〇、 4 以做不同的結構設計，以滿足較好的鋪回放 腔％、520的橫截面的形狀可爲圓形、方形、不規則形 道3〇可^計爲柱狀、球狀等不同的形狀，同樣通 k3〇的域面形狀及大小均可根據需要設定，可爲圓形，三角形等， 1308029 其長度亦可相應改變。 構，ΐίϊϊϊΓ動電㈣㈣㈣進行設計細則減其音箱結 感。同時lir鮮，增強低頻回放效果，顧移動電話的聲音質 i化，腔20通過通道30與外界相連通，使頻率回應曲線平 特別對聲。該種音箱結構可應用於不同的移動電話産品中， 其有限的空間實現良好的低_放效果，獲得良好的聲音質 以上發明符合發明專利要件，爰縣提出專利巾請。惟， 精神所作之等效修飾或變化，皆應涵蓋於以;之申i專ΐ 【圖式簡單說明】 第一圖爲移動電話結構示意圖。 第二圖爲移動電話空腔結構示意圖。 第二圖爲亥姆霍茲㈣她㈣共振腔結構示意圖。 第四圖爲空腔結構另一實施方式示意圖。 第五圖(八)〜(D)爲第四圖所示空腔結構共振頻率模擬圖。 【主要元件符號說明】 盒體 按健區 發聲區 共振腔 開口 頸部 通音孔 圓形腔 10 12 16 20、 520 22 240 40 522 空腔結構 顯示區 發聲孔 亥姆霍茲共振腔 空腔 通道 揚聲器 方形腔 100、 500 14 18 200 220 30、 530 50 524 8When the mobile phone 10 is in the communication state, the electrical signal is converted into the vibration of the diaphragm through the circuit. At this time, the resonant cavity 20 is condensed under the vibration of the vibration. At this time, if the resonance of the resonant cavity 2 is input, the resonance is performed. The solid money paste of the cavity m will push the air in the channel 30 to vibrate at a high speed, and the air of the channel 3 is connected to the air at the exit of the channel 3, that is, the air of the sound hole 4G. Sound waves. Since the cavity 20 in the cavity structure 100 communicates with the outside through the channel 3, the air pressure in the cavity 2 is different from the pressure in the external domain. The fine stroke motion of the shoe 5G is not due to the pressure of internal and external money. The rapid collision test, the stroke of the diaphragm of the headphone 5 () is relatively increased 'the product of the diaphragm stroke and the diaphragm area, that is, the volume pushed by the diaphragm increases, and the low frequency playback sound scale level and The amount of air that the diaphragm of the speaker 5G can push is roughly proportional. Therefore, the cavity structure can effectively reduce the resonance frequency, and can obtain a better low-frequency dive wire, and a good low-discharge effect. Γ 5 5GG — 实施 实施 实施 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振 共振The circular cavity 522 and the square cavity f are partially formed to form the irregular cavity 52G. The channel 530 extends outward from the intersection of the square cavity 524 to the sound hole, as shown in the fifth figure in the structure of the total _ face affliction® from the perspective of the angle of the more dense, the stronger the position, the cavity every (four) 1449 ,, The excellent low-frequency playback effect of the moving electric raft of about 9ΗΖ is improved, and the internal structure of the sound of the sound at low frequencies is improved, and various speaker structures are used. The resonant cavity 2〇, 4 is used for different structural design. In order to satisfy the better paving playback cavity%, the shape of the cross section of the 520 may be a circular shape, a square shape, an irregular shape, or a different shape such as a column shape or a spherical shape, and the same k3 〇 domain The shape and size of the surface can be set as needed, and can be circular, triangular, etc., 1308029, the length can also be changed accordingly. Construction, ΐίϊϊϊΓ (4) (4) (4) Design rules to reduce the speaker's feeling. At the same time, the lir is fresh, and the low-frequency playback effect is enhanced. Considering the sound quality of the mobile phone, the cavity 20 communicates with the outside through the channel 30, so that the frequency response curve is particularly flat. The speaker structure can be applied to different mobile phone products, and the limited space realizes a good low-discharge effect, and obtains a good sound quality. The above invention meets the patent requirements of the invention, and the patent towel of the county is proposed. However, the equivalent modification or change of the spirit should be covered by the application of the application. [Simplified description of the schema] The first diagram is a schematic diagram of the structure of the mobile phone. The second picture is a schematic diagram of the structure of the mobile phone cavity. The second picture shows the structure of Helmholtz (four) her (four) resonant cavity structure. The fourth figure is a schematic view of another embodiment of the cavity structure. The fifth figure (8) ~ (D) is the simulation diagram of the resonant frequency of the cavity structure shown in the fourth figure. [Main component symbol description] Box body according to the sound zone of the sound zone, cavity opening, neck sound hole, circular cavity 10 12 16 20, 520 22 240 40 522 cavity structure display area sound hole Helmholtz cavity cavity channel Speaker square cavity 100, 500 14 18 200 220 30, 530 50 524 8