WO2012013098A1 - Audio cavity sealing structure for loudspeaker and portable mobile terminal - Google Patents
Audio cavity sealing structure for loudspeaker and portable mobile terminal Download PDFInfo
- Publication number
- WO2012013098A1 WO2012013098A1 PCT/CN2011/075957 CN2011075957W WO2012013098A1 WO 2012013098 A1 WO2012013098 A1 WO 2012013098A1 CN 2011075957 W CN2011075957 W CN 2011075957W WO 2012013098 A1 WO2012013098 A1 WO 2012013098A1
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- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- speaker
- sound
- sealing structure
- sound insulating
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/023—Screens for loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/04—Structural association of microphone with electric circuitry therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Definitions
- the present invention relates to the field of electronic technology, and in particular to a speaker sound chamber sealing structure and a portable mobile terminal provided with the speaker sound chamber sealing structure.
- the speaker is an important component on the portable mobile terminal.
- the existing portable mobile terminal is usually provided with a speaker sound chamber sealing structure.
- the speaker sound cavity sealing structure in the existing mobile phone usually includes a cover-shaped and plastic material bracket, a plastic film sealing box and a circuit board, wherein: the bracket is detachable and fixed.
- the bracket On the circuit board, the bracket is provided with a concave front sound chamber, and the front sound chamber cover is disposed on the sound emitting portion (or speaker) of the speaker; the portion of the speaker away from the sound emitting portion is opposite to the position of the circuit board;
- the box is fixed to the circuit board by ultrasonic welding, and the sealing box is disposed on the speaker away from the portion of the sound emitting portion, and there is a gap or slight contact between the sealing box and the components on the circuit board around the speaker.
- the sounding part of the speaker is used to emit sound
- the sealing box forms a rear sound chamber which is relatively independent from the front sound chamber and has a sealed structure.
- the rear sound chamber formed by the sealed box can avoid resonance of the sound emitting part of the speaker and the rear of the speaker. Or resonance, which in turn ensures that the speaker has Better sound quality.
- the rear sound chamber of the sealing structure is a sealed box which is disposed outside the portion of the speaker away from the sound emitting portion and
- the shape of the sealed box is usually relatively regular, and the shape of the components on the circuit board around the speaker is relatively diverse.
- the sealed box cannot be matched with the shape of all components to ensure the sealed box. Does not affect the components, there is usually a gap between the sealed box and the component or only a slight contact with the components of the portable mobile terminal in the thickness direction (the direction perpendicular to the board), the sealed box in this structure
- the existence of the device will affect the positional relationship between the components on the circuit board and the speaker.
- the components cannot fully utilize the space around the speaker in the thickness direction of the portable mobile terminal, so the existence of the sealed box wastes a lot of space in the thickness direction of the portable mobile terminal. , resulting in a very small space for accommodating speakers in the portable mobile terminal, And only use a smaller thickness dimension speakers because smaller speakers typically the thickness dimension of the speaker sound is not ideal, resulting in poor quality portable mobile terminal.
- the embodiment of the invention provides a speaker sound chamber sealing structure and a portable mobile terminal provided with the speaker sound chamber sealing structure, which solves the problem that the existing speaker sound chamber sealing structure occupies a large thickness space of the portable mobile terminal, resulting in portable movement.
- the speaker cavity sealing structure comprises a cover-shaped bracket, a soundproofing pad made of an elastic material, and a circuit board, wherein:
- the bracket is provided with an inner sound chamber, and the front sound chamber cover is disposed on the sounding portion of the speaker;
- a portion of the speaker remote from the sound emitting portion is opposite to a position of the circuit board; a component is fixed on the circuit board around the speaker;
- the soundproofing pad has a closed curve shape and surrounds the speaker, the edge of the bracket is pressed against the soundproofing pad, and the soundproofing pad is pressed against the circuit board and the component.
- the portable mobile terminal includes a speaker and the speaker sound cavity sealing structure provided by the present invention described above.
- any technical solution provided by the present invention provides the following advantages:
- the soundproofing pad of the speaker sound chamber sealing structure has a closed curve shape and surrounds the speaker, the edge of the bracket is pressed against the soundproofing pad, and the soundproofing pad is pressed against the circuit board and the component, the bracket and the soundproofing pad
- the circuit board and the components form a complete sealed cavity that can be used for sound insulation.
- the sealed cavity can avoid resonance or resonance after the sounding part of the speaker emits sound, thereby ensuring that the speaker has a better sound.
- Good sound quality it can be seen that the invention fully utilizes the sound insulation performance of the bracket, the circuit board and the components, and the sealed cavity formed by the bracket, the soundproofing pad, the circuit board and the components functions in the existing speaker sound cavity sealing structure.
- the sealing box made of the plastic sheet is not provided in the invention, the space occupied by the sealing box in the thickness direction of the portable mobile terminal is saved, and the soundproofing pad is located at the edge of the bracket, and the components on the circuit board are not affected.
- the positional relationship with the speaker the component can make full use of the space around the speaker in the thickness direction of the portable mobile terminal provided with the speaker cavity sealing structure, thereby making the soundproof pad waste space in the thickness direction of the portable mobile terminal It is much smaller than the space wasted by the sealed box made of plastic sheet in the thickness direction of the portable mobile terminal, so that the space for accommodating the speaker in the portable mobile terminal is more abundant, and the thickness is larger, and the sound effect is more ideal.
- the speaker solves the technical problem that the existing speaker sound cavity sealing structure occupies a large thickness space of the portable mobile terminal, resulting in poor sound quality of the portable mobile terminal;
- the sound insulating mat used in the present invention is made of an elastic material, and since the low-cost elastic material is quite large, the present invention can make the cost of the sound insulating mat much lower than that of the plastic sheet.
- the sealed box is further advantageous for reducing the cost, and in the present invention, the sound insulating pad can be positioned by pressing, and the mounting operation of the present invention is more compact than the prior art method of fixing the sealed box by the ultrasonic welding process. Single, convenient, and less time consuming, so production efficiency is higher.
- FIG. 1 is a perspective view of a main board of a portable mobile terminal provided with a speaker sound chamber sealing structure provided by an embodiment of the present invention
- FIG. 2 is a perspective view showing a positional relationship between a bracket and an electromagnetic shielding cover when a soundproofing pad is not installed in a speaker sound chamber sealing structure according to an embodiment of the present invention
- Figure 3 is a perspective view 1 of the soundproofing pad placed on the bracket shown in Figure 2;
- Figure 4 is a perspective view 2 of the soundproofing pad placed on the bracket shown in Figure 2;
- Figure 5 is an enlarged schematic view of a portion A in Figure 4.
- FIG. 6 is a perspective view of an electromagnetic shielding cover in a speaker sound chamber sealing structure according to an embodiment of the present invention.
- FIG. 7 is a perspective view of a bracket in a speaker sound chamber sealing structure according to an embodiment of the present invention.
- FIG. 8 is a perspective view showing a positional relationship between a bracket and an electromagnetic shield when a soundproofing mat is installed in a speaker sound chamber sealing structure according to an embodiment of the present invention
- Figure 9 is a perspective view of the upper soundproofing pad shown in Figure 4 or Figure 8;
- FIG. 10 is a perspective view of a sound insulating mat in a speaker sound chamber sealing structure according to an embodiment of the present invention. detailed description
- the embodiment of the invention provides a speaker sound chamber sealing structure that occupies less space of the portable mobile terminal, is convenient to install, has low cost, and can make the sound quality of the portable mobile terminal more ideal, and is portable with the speaker sound chamber sealing structure.
- Mobile terminal Mobile terminal.
- the speaker sound chamber sealing structure provided by the embodiment of the present invention includes a cover-shaped bracket 1 as shown in FIG. 2 , and an acoustic material as shown in FIG. 7 .
- Pad 2 and circuit board 3 where:
- the bracket 1 is provided with a front sound chamber 4 having a concave shape as shown in FIG. 3, and the front sound chamber 4 is disposed on the sound emitting portion 50 of the speaker 5 as shown in FIG. 1; the portion of the speaker 5 remote from the sound emitting portion 50 is
- the circuit board 3 is oppositely positioned; the component 6 is fixed on the circuit board 3 around the speaker 5; the soundproofing pad 2 has a closed curve shape, and surrounds the speaker 5, the edge of the bracket 1 is pressed against the soundproofing pad 2, and the soundproofing pad is 2 is pressed against the circuit board 3 and the component 6.
- the soundproofing pad 2 of the speaker sound chamber sealing structure provided by the present invention has a closed curve shape and surrounds the speaker 5, the edge of the bracket 1 is pressed against the soundproofing pad 2, and the soundproofing pad 2 is pressed against the circuit board 3 and the element.
- the bracket 1, the soundproofing pad 2, the circuit board 3, and the component 6 form a complete sealed cavity capable of soundproofing, and the sealed cavity can prevent the sounding portion 50 of the speaker 5 from emitting sound after the speaker Resonance or resonance occurs at the rear of 5, which in turn ensures that the speaker 5 has better sound quality.
- the present invention fully utilizes the sound insulation performance of the bracket 1, the circuit board 3, and the component 6, the bracket 1, the soundproof pad 2,
- the sealed cavity formed by the circuit board 3 and the component 6 functions as a sealed box in the existing speaker sound cavity sealing structure;
- the sealing box made of the plastic sheet is not provided in the invention, the space occupied by the sealing box in the thickness direction of the portable mobile terminal is saved, and the soundproofing pad 2 is located at the edge of the bracket 1 without affecting the circuit board 3
- the positional relationship between the upper component 6 and the speaker 5, the component 6 can make full use of the space around the speaker 5 in the thickness direction of the portable mobile terminal provided with the speaker cavity sealing structure, thereby enabling the soundproofing pad 2 to be portablely moved.
- the space wasted in the thickness direction of the terminal is much smaller than the space wasted by the sealed box made of plastic sheet in the thickness direction of the portable mobile terminal, so that the space for accommodating the speaker 5 in the portable mobile terminal is more abundant, and the thickness dimension can be selected.
- the speaker 5 with larger sound effect is more ideal, so the existing speaker cavity sealing structure occupies more space of the portable mobile terminal, which leads to a technical problem of poor sound quality of the portable mobile terminal;
- the sound insulating mat 2 used in the present invention is made of an elastic material. Since the low-cost elastic material is quite large, the present invention can make the cost of the sound insulating mat 2 much lower than that of the plastic sheet. Moreover, the cost is further reduced, and the sound insulating pad 2 can be positioned in a pressing manner in the present invention. Compared with the prior art method of fixing the sealed box by the ultrasonic welding process, the installation operation of the present invention is more simple and convenient. , it takes less time, so the production efficiency is higher.
- the component 6 is an electromagnetic shielding cover disposed outside the electronic device on the circuit board 3 shown in FIG. 1 , and the edge of the bracket 1 is pressed against the sound insulating pad 2 .
- the soundproofing mat 2 is pressed against the circuit board 3 and the portion of the electromagnetic shield that is close to the speaker 5.
- the electronic device on the circuit board 3, especially the electronic device on the circuit board 3 in the portable mobile terminal, has a relatively high probability of electromagnetic interference. Therefore, the electromagnetic shielding cover can effectively avoid electromagnetic interference between the electronic devices.
- the electromagnetic shielding cover is mostly made of a metal material, and the metal material itself has good sound insulation performance, the edge of the bracket 1 in this embodiment is pressed against the sound insulating mat 2, and the soundproofing mat 2 is pressed against the circuit board 3 and the electromagnetic When the shield is close to the portion of the speaker 5, the bracket 1, the sound insulating mat 2, the circuit board 3, and the electromagnetic shield can be formed into a complete sealed cavity which can provide better sound insulation.
- the component 6 in this embodiment may also be an electromagnetic shielding cover such as a protective cover. Other components outside.
- the rim of the bracket 1 is fixed to the sound insulating wall 7 as shown in FIGS. 5 and 7 in the direction of approaching the circuit board 3, the sound insulating mat 2 is bonded to the top of the sound insulating wall 7, and the sound insulating mat 2 is interposed between the sound insulating wall 7. Between the circuit board 3 or between the sound insulating wall 7 and the electromagnetic shielding cover.
- the sound insulating wall 7 not only functions as a soundproofing but also increases the pressure at which the edge of the bracket 1 abuts against the pressure of the diaphragm 2 at 4 degrees.
- the sound insulating mat 2 is bonded to the top of the sound insulating wall 7, on the one hand, the tight connection between the sound insulating mat 2 and the sound insulating wall 7 can be further ensured, thereby ensuring the formation of the bracket 1, the sound insulating mat 2, the circuit board 3 and the electromagnetic shielding cover.
- the sealing effect of the sound-insulating sealing cavity on the other hand, when the sound insulating mat 2 is bonded to the sound insulating wall 7 and then the bracket 1 is placed on the circuit board 3 and the electromagnetic shielding cover, the mounting operation is more convenient.
- the soundproofing pad 2 is preferably bonded to the top of the sound insulating wall 7 by using double-sided tape.
- the sound insulating pad 2 can be fixed to the sound insulating wall 7 by using other bonding means such as other glues or binding structures. the top of.
- the electromagnetic shielding cover in the embodiment includes a top cover 60 as shown in FIG. 6 and a periphery of the top cover 60 and fixed on the circuit board 3 as shown in FIG. Side 61;
- the height of the sound insulating wall 7 opposite to the position of the top cover 60 of the electromagnetic shield is smaller than the height of the sound insulating wall 7 of the other portions;
- the soundproofing mat 2 further includes at least one first bent portion 21, and the two ends of the first bent portion 21 are respectively disposed between the circuit board 3 and the sound insulating wall 7 as shown in FIG.
- the top cover 60 of the electromagnetic shielding cover and the soundproofing pad 2 between the sound insulating walls 7 are connected; in the state shown in FIG. 3, the first bent portion 21 is in an unfolded state; in the state shown in FIG.
- the bent portion 21 is bent downward toward the bracket 1;
- the electromagnetic shield is also fixed with a first abutting portion 63 extending as shown in FIG. 6 and FIG. 8 toward the circuit board 3 as shown in FIG. 1.
- the first abutting portion 63 is pressed against the first bend.
- the first bent portion 21 is pressed against the sound insulating wall 7.
- the matching structure formed by the first bent portion 21 and the first abutting portion 63 can be an electromagnetic shielding cover
- the side portion 61 is sealed with the gap between the sound insulating walls 7, thereby further improving the sealing of the soundproofing sealing cavity formed by the bracket 1, the sound insulating mat 2, the circuit board 3, and the electromagnetic shield.
- the top cover 60 of the electromagnetic shielding cover is further provided with a venting hole 10 opposite to the position of the speaker 5 shown in FIG. 1 , and the venting hole 10 has the bracket 1 , the sound insulating pad 2 , the circuit board 3 , and
- the sealed cavity formed by the electromagnetic shielding cover communicates with the electromagnetic shielding cavity formed by the electromagnetic shielding cover and the circuit board 3, thereby improving the sealing cavity formed by the bracket 1, the sound insulating pad 2, the circuit board 3 and the electromagnetic shielding cover Breathability and heat dissipation.
- the vent hole 10 formed by the top cover 60 is not formed on the bracket 1, the sound insulating pad 2, the circuit board 3, and the electromagnetic shielding cover.
- the sound insulation effect of the sealed cavity has a great influence.
- the sound insulating mat 2 in the embodiment further includes at least one second bent portion 22, and the second bent portion 22 and the position are interposed between the circuits.
- the soundproofing pad 2 between the plate 3 and the sound insulating wall 7 is connected to the edge of the portion of the electromagnetic shielding cover, and is bent in a direction away from the circuit board 3; in the state shown in FIG. 3, the second bending portion 22 is Expanded state; in the state shown in Figure 4, the second bent portion 22 is bent downward toward the bracket 1;
- the side portion 61 of the electromagnetic shielding cover is fixed with a convex edge 62 which is convex, and the edge of the protruding edge 62 is fixed with at least one second abutting portion 64 extending in the direction of approaching the circuit board 3, and the second abutting portion The portion 64 is pressed against the second bent portion 22 and presses the second bent portion 22 against the sound insulating wall 7.
- the matching structure formed by the second bending portion 22 and the second abutting portion 64 makes the electromagnetic shielding cover and the sound insulating wall 7 cooperate. More compact, thereby further improving the sealing of the sound-insulating sealing cavity formed by the bracket 1, the sound insulating mat 2, the circuit board 3, and the electromagnetic shield.
- the electromagnetic shielding cover is integrally formed with the protruding edge 62, the first abutting portion 63, and the second abutting portion 64 as shown in FIG. 6, and/or the position is between As shown in Figure 1, the circuit board 3, as shown in Figure 7, between the soundproofing walls 7 between the soundproofing mat 2 and Figure 3 and The first bent portion 21 and the second bent portion 22 shown in Fig. 5 are an integral mechanism.
- the integrated structure is not only reliable in connection but also easy to manufacture in one time.
- the electromagnetic shielding cover and the flange 62 and the second abutting portion 64 can be cut and bent by a metal plate.
- the soundproofing mat 2 disposed between the circuit board 3 and the sound insulating wall 7 is integrated with the first bent portion 21 and the second bent portion 22, so that the soundproofing between the circuit board 3 and the sound insulating wall 7 is made.
- the mat 2 and the sound insulating mat 2 interposed between the top cover 60 of the electromagnetic shielding cover and the sound insulating wall 7 can be respectively bonded, thereby making the bonding operation of the sound insulating mat 2 more convenient.
- the rim of the bracket 1 is further provided with at least one buckle 8 in the shape of a bend, and the end of the buckle 8 extends in a direction close to the central area of the bracket 1, and the end of the buckle 8 Abuts the side of the circuit board 3 on the edge away from the speaker 5.
- the bracket 1 is detachably connected to the circuit board 3 through the mating structure between the buckle 8 and the edge of the circuit board 3.
- the mating structure between the buckle 8 and the edge of the circuit board 3 is not only simple and convenient to install.
- the bracket 1 and the circuit board 3 can be detachably fixed together.
- six brackets 8 are fixed on the bracket 1, and the six buckles 8 detachably fix the bracket 1 and the circuit board 3 from a plurality of angles.
- a positioning post 9 is also fixed on the bracket 1 , and a positioning hole is formed on the circuit board 3 as shown in FIG. 1 , and the positioning post 9 is embedded in the positioning hole.
- the matching structure of the positioning post 9 and the positioning hole makes the mounting operation of the bracket 1 and the circuit board 3 more convenient. It is only necessary to align the positioning post 9 on the bracket 1 with the positioning hole, and then apply a thrust toward the circuit board 3, The bracket 1 can be quickly and accurately inserted into the circuit board 3.
- the upper soundproofing pad refers to a soundproofing pad bonded to the bracket 1 and located at the upper portion of FIG. 4 or FIG. 8 in the state shown in FIG. 4 or FIG. 8, as may be The soundproofing pad is placed between the circuit board 3 and the sound insulating wall 7.
- the sound insulating mat 2 is made of foam or silicone material. Both foam and silica gel have good elasticity and have good sound insulation properties, and are suitable for making soundproof mats 2.
- the sound insulating mat 2 in this embodiment is preferably made of a foam material. The foam has the advantages of bending, flexibility, light weight and reliable performance, and is more suitable for the production of the soundproof mat 2.
- the portable mobile terminal provided by the embodiment of the present invention comprises a speaker 5 as shown in FIG. 1 and a speaker sound chamber sealing structure provided by the above embodiment of the present invention.
- the portable mobile terminal provided by the embodiment of the present invention has the same technical features as the speaker sound chamber sealing structure provided by the embodiment of the present invention described above, the same technical effect can be produced and the same technical problem can be solved.
- the circuit board in the speaker sound chamber sealing structure provided in the above embodiment is preferably a main board of a portable mobile terminal.
- the space on the main board of the portable mobile terminal is sufficient and generally opposite to the position of the speaker.
- the speaker cavity sealing structure provided by the embodiment of the present invention is suitable for sealing the sound cavity of the speaker.
- the speaker sound chamber sealing structure provided by the embodiment of the present invention can also be applied to other electronic devices than the portable mobile terminal.
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Abstract
The present invention discloses an audio cavity sealing structure for a loudspeaker and a portable mobile terminal, and pertains to the technical field of electronics. Solved is the technical problem that the poor tone quality of a portable mobile terminal is caused by the large thickness space of the portable mobile terminal occupied by the existing audio cavity sealing structure for a loudspeaker. The audio cavity sealing structure for the loudspeaker has a circuit board, a cover-shaped holder and a sound insulation pad made of elastic materials. A concave front audio cavity is located at the holder. The part away from the sound part of the loudspeaker is face to the location of the circuit board. An element is fixed on the surrounding circuit board of the loudspeaker. The loudspeaker is surrounded by a sound insulation pad and an edge of the holder is pressed on the sound insulation pad. The sound insulation pad is forced against the circuit board and the element. The portable mobile terminal includes a loudspeaker and the audio cavity sealing structure for the loudspeaker provided by the invention. The invention is applied to reduce the space occupied by the audio cavity sealing structure for a loudspeaker.
Description
扬声器音腔密封结构以及便携式移动终端 本申请要求了 2010年 07月 29 日递交的申请号为 201010240061.7 , 发明名称为"扬声器音腔密封结构以及便携式移动终端"的中国专利申请 的优先权, 其全部内容通过引用结合在本申请中。 技术领域 The present invention claims the priority of the Chinese patent application entitled "Speaker Sound Chamber Sealing Structure and Portable Mobile Terminal", which is filed on July 29, 2010. The content is incorporated herein by reference. Technical field
本发明涉及电子技术领域,具体涉及一种扬声器音腔密封结构以及设 有该扬声器音腔密封结构的便携式移动终端。 The present invention relates to the field of electronic technology, and in particular to a speaker sound chamber sealing structure and a portable mobile terminal provided with the speaker sound chamber sealing structure.
背景技术 Background technique
随着电子技术的不断发展, 手机、 掌上电脑等便携式移动终端已经成 为人们日常生活中最为常见的通信工具。 With the continuous development of electronic technology, portable mobile terminals such as mobile phones and handheld computers have become the most common communication tools in people's daily life.
目前, 轻薄短小的便携式移动终端越来受到客户的青睐。 扬声器是便 携式移动终端上的重要部件, 为保证扬声器的音质, 现有的便携式移动终 端上通常均设置有扬声器音腔密封结构。 At present, thin and light portable mobile terminals are increasingly favored by customers. The speaker is an important component on the portable mobile terminal. To ensure the sound quality of the speaker, the existing portable mobile terminal is usually provided with a speaker sound chamber sealing structure.
以手机为例, 现有的手机内的扬声器音腔密封结构, 通常均包括呈罩 状的且为塑胶材料制成的支架、塑胶薄片制成的密封盒以及电路板,其中: 支架可拆卸固定于电路板上, 且支架上开设有呈内凹形的前音腔, 前音腔 罩设于扬声器的发声部分 (或称 Speaker ) 上; 扬声器上远离发声部分的 部分与电路板位置相对; 密封盒通过超声焊的方式固定于电路板上, 且密 封盒罩设于扬声器上远离发声部分的部分之外,密封盒与扬声器周围的电 路板上的元器件之间存在间隙或存在轻微接触。 Taking a mobile phone as an example, the speaker sound cavity sealing structure in the existing mobile phone usually includes a cover-shaped and plastic material bracket, a plastic film sealing box and a circuit board, wherein: the bracket is detachable and fixed. On the circuit board, the bracket is provided with a concave front sound chamber, and the front sound chamber cover is disposed on the sound emitting portion (or speaker) of the speaker; the portion of the speaker away from the sound emitting portion is opposite to the position of the circuit board; The box is fixed to the circuit board by ultrasonic welding, and the sealing box is disposed on the speaker away from the portion of the sound emitting portion, and there is a gap or slight contact between the sealing box and the components on the circuit board around the speaker.
扬声器的发声部分用于发出声音,密封盒形成与前音腔相对独立且为 密封结构的后音腔,密封盒所形成的后音腔可以避免扬声器的发声部分发 出声音后, 扬声器的后方发生谐振或共鸣现象, 进而可以保证扬声器具有
较好的音质。 The sounding part of the speaker is used to emit sound, and the sealing box forms a rear sound chamber which is relatively independent from the front sound chamber and has a sealed structure. The rear sound chamber formed by the sealed box can avoid resonance of the sound emitting part of the speaker and the rear of the speaker. Or resonance, which in turn ensures that the speaker has Better sound quality.
本发明人在实现本发明的过程中, 发现现有技术至少存在以下问题: 由于现有技术中,密封结构的后音腔是由罩设于扬声器上远离发声部 分的部分之外的密封盒以及扬声器形成的,密封盒的形状通常是比较规则 的, 而扬声器周围的电路板上的元器件的形状是比较多样的, 密封盒无法 做到与所有元器件的形状相适配, 为保证密封盒不会影响元器件, 密封盒 与元器件之间通常都存在间隙或与便携式移动终端厚度方向(与电路板垂 直的方向)上尺寸较大的元器件仅存在轻微接触, 这种结构中密封盒的存 在会影响电路板上元器件与扬声器之间的位置关系,元器件无法充分利用 扬声器周围在便携式移动终端厚度方向上的空间,所以密封盒的存在会浪 费便携式移动终端厚度方向上不少空间,致使便携式移动终端内用于容纳 扬声器的空间非常狭小, 故而仅能选用厚度尺寸较小的扬声器, 因为扬声 器厚度尺寸较小的扬声器声音效果通常均不理想,所以导致便携式移动终 端音质较差。 In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: Because in the prior art, the rear sound chamber of the sealing structure is a sealed box which is disposed outside the portion of the speaker away from the sound emitting portion and The shape of the sealed box is usually relatively regular, and the shape of the components on the circuit board around the speaker is relatively diverse. The sealed box cannot be matched with the shape of all components to ensure the sealed box. Does not affect the components, there is usually a gap between the sealed box and the component or only a slight contact with the components of the portable mobile terminal in the thickness direction (the direction perpendicular to the board), the sealed box in this structure The existence of the device will affect the positional relationship between the components on the circuit board and the speaker. The components cannot fully utilize the space around the speaker in the thickness direction of the portable mobile terminal, so the existence of the sealed box wastes a lot of space in the thickness direction of the portable mobile terminal. , resulting in a very small space for accommodating speakers in the portable mobile terminal, And only use a smaller thickness dimension speakers because smaller speakers typically the thickness dimension of the speaker sound is not ideal, resulting in poor quality portable mobile terminal.
发明内容 Summary of the invention
本发明实施例提供了一种扬声器音腔密封结构以及设有该扬声器音 腔密封结构的便携式移动终端,解决了现有的扬声器音腔密封结构占用便 携式移动终端的厚度空间较多, 导致便携式移动终端音质较差的技术问 题。 The embodiment of the invention provides a speaker sound chamber sealing structure and a portable mobile terminal provided with the speaker sound chamber sealing structure, which solves the problem that the existing speaker sound chamber sealing structure occupies a large thickness space of the portable mobile terminal, resulting in portable movement. The technical problem of poor sound quality of the terminal.
为达到上述目的, 本发明的实施例采用如下技术方案: In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
该扬声器音腔密封结构, 包括呈罩状的支架、 弹性材料制成的隔音垫 以及电路板, 其中: The speaker cavity sealing structure comprises a cover-shaped bracket, a soundproofing pad made of an elastic material, and a circuit board, wherein:
所述支架上开设有呈内 形的前音腔,所述前音腔罩设于扬声器的发 声部分上; The bracket is provided with an inner sound chamber, and the front sound chamber cover is disposed on the sounding portion of the speaker;
所述扬声器上远离所述发声部分的部分与所述电路板位置相对; 所述扬声器周围的所述电路板上固设有元器件;
所述隔音垫呈封闭曲线形, 且环绕所述扬声器, 所述支架的边沿抵压 于所述隔音垫上, 并将所述隔音垫压靠于所述电路板以及所述元器件上。 a portion of the speaker remote from the sound emitting portion is opposite to a position of the circuit board; a component is fixed on the circuit board around the speaker; The soundproofing pad has a closed curve shape and surrounds the speaker, the edge of the bracket is pressed against the soundproofing pad, and the soundproofing pad is pressed against the circuit board and the component.
该便携式移动终端,包括扬声器以及上述本发明所提供的扬声器音腔 密封结构。 The portable mobile terminal includes a speaker and the speaker sound cavity sealing structure provided by the present invention described above.
与现有技术相比,本发明所提供上述技术方案中的任一技术方案具有 ^口下优点: Compared with the prior art, any technical solution provided by the present invention provides the following advantages:
由于本发明所提供的扬声器音腔密封结构中隔音垫呈封闭曲线形,且 环绕扬声器, 支架的边沿抵压于隔音垫上, 并将隔音垫压靠于电路板以及 元器件上, 支架、 隔音垫、 电路板以及元器件形成了一个完整的可以起到 隔音作用的密封腔体, 密封腔体能够避免扬声器的发声部分发出声音后, 在扬声器的后方发生谐振或共鸣现象,进而可以保证扬声器具有较好的音 质, 由此可见, 本发明充分利用了支架、 电路板以及元器件的隔音性能, 支架、 隔音垫、 电路板以及元器件形成的密封腔体起到了现有的扬声器音 腔密封结构中密封盒所起的作用; Since the soundproofing pad of the speaker sound chamber sealing structure provided by the invention has a closed curve shape and surrounds the speaker, the edge of the bracket is pressed against the soundproofing pad, and the soundproofing pad is pressed against the circuit board and the component, the bracket and the soundproofing pad The circuit board and the components form a complete sealed cavity that can be used for sound insulation. The sealed cavity can avoid resonance or resonance after the sounding part of the speaker emits sound, thereby ensuring that the speaker has a better sound. Good sound quality, it can be seen that the invention fully utilizes the sound insulation performance of the bracket, the circuit board and the components, and the sealed cavity formed by the bracket, the soundproofing pad, the circuit board and the components functions in the existing speaker sound cavity sealing structure. The role played by the sealed box;
同时, 由于本发明中未设置塑胶薄片制成的密封盒, 故而节省了密封 盒在便携式移动终端厚度方向上所占用的空间,而且隔音垫位于支架的边 沿处, 不会影响电路板上元器件与扬声器之间的位置关系, 元器件可以充 分利用扬声器周围在设有该扬声器音腔密封结构的便携式移动终端厚度 方向上的空间,进而可以使得隔音垫在便携式移动终端厚度方向上所浪费 的空间远小于塑胶薄片制成的密封盒在便携式移动终端厚度方向上所浪 费的空间, 故而使得便携式移动终端内用于容纳扬声器的空间更为充裕, 可以选用厚度尺寸较大、 声音效果更为理想的扬声器, 所以解决了现有的 扬声器音腔密封结构占用便携式移动终端的厚度空间较多,导致便携式移 动终端音质较差的技术问题; At the same time, since the sealing box made of the plastic sheet is not provided in the invention, the space occupied by the sealing box in the thickness direction of the portable mobile terminal is saved, and the soundproofing pad is located at the edge of the bracket, and the components on the circuit board are not affected. The positional relationship with the speaker, the component can make full use of the space around the speaker in the thickness direction of the portable mobile terminal provided with the speaker cavity sealing structure, thereby making the soundproof pad waste space in the thickness direction of the portable mobile terminal It is much smaller than the space wasted by the sealed box made of plastic sheet in the thickness direction of the portable mobile terminal, so that the space for accommodating the speaker in the portable mobile terminal is more abundant, and the thickness is larger, and the sound effect is more ideal. The speaker solves the technical problem that the existing speaker sound cavity sealing structure occupies a large thickness space of the portable mobile terminal, resulting in poor sound quality of the portable mobile terminal;
除此之外, 本发明所使用的隔音垫由弹性材料制成, 由于低成本的弹 性材料是相当多的,故而本发明可以使得隔音垫的成本远低于塑胶薄片制
成的密封盒, 进而更有利于降低成本, 而且本发明中可以采用抵压的方式 定位隔音垫, 与现有技术中采用超声焊工艺固定密封盒的方式相比, 本发 明安装操作更为筒单、方便,所耗费的时间也更少,所以生产效率也更高。 附图说明 In addition, the sound insulating mat used in the present invention is made of an elastic material, and since the low-cost elastic material is quite large, the present invention can make the cost of the sound insulating mat much lower than that of the plastic sheet. The sealed box is further advantageous for reducing the cost, and in the present invention, the sound insulating pad can be positioned by pressing, and the mounting operation of the present invention is more compact than the prior art method of fixing the sealed box by the ultrasonic welding process. Single, convenient, and less time consuming, so production efficiency is higher. DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对 实施例或现有技术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员 来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的 附图。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description For some embodiments of the present invention, other drawings may be obtained from those skilled in the art without departing from the drawings.
图 1 为设置有本发明的实施例所提供的扬声器音腔密封结构的便携 式移动终端的主板的立体示意图; 1 is a perspective view of a main board of a portable mobile terminal provided with a speaker sound chamber sealing structure provided by an embodiment of the present invention;
图 2 为本发明的实施例所提供的扬声器音腔密封结构中未安装隔音 垫时支架与电磁屏蔽罩之间位置关系的立体示意图; 2 is a perspective view showing a positional relationship between a bracket and an electromagnetic shielding cover when a soundproofing pad is not installed in a speaker sound chamber sealing structure according to an embodiment of the present invention;
图 3为在图 2所示支架上铺设上隔音垫时的立体示意图一; Figure 3 is a perspective view 1 of the soundproofing pad placed on the bracket shown in Figure 2;
图 4为在图 2所示支架上铺设上隔音垫时的立体示意图二; Figure 4 is a perspective view 2 of the soundproofing pad placed on the bracket shown in Figure 2;
图 5为图 4中 A部分的放大示意图; Figure 5 is an enlarged schematic view of a portion A in Figure 4;
图 6 为本发明的实施例所提供的扬声器音腔密封结构中电磁屏蔽罩 的立体示意图; 6 is a perspective view of an electromagnetic shielding cover in a speaker sound chamber sealing structure according to an embodiment of the present invention;
图 7 为本发明的实施例所提供的扬声器音腔密封结构中支架的立体 示意图; 7 is a perspective view of a bracket in a speaker sound chamber sealing structure according to an embodiment of the present invention;
图 8 为本发明的实施例所提供的扬声器音腔密封结构中安装上隔音 垫时支架与电磁屏蔽罩之间位置关系的立体示意图; FIG. 8 is a perspective view showing a positional relationship between a bracket and an electromagnetic shield when a soundproofing mat is installed in a speaker sound chamber sealing structure according to an embodiment of the present invention; FIG.
图 9为图 4或图 8中所示上隔音垫的立体示意图; Figure 9 is a perspective view of the upper soundproofing pad shown in Figure 4 or Figure 8;
图 10为本发明的实施例所提供的扬声器音腔密封结构中隔音垫的立 体示意图。
具体实施方式 FIG. 10 is a perspective view of a sound insulating mat in a speaker sound chamber sealing structure according to an embodiment of the present invention. detailed description
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进 行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没 有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的 范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
本发明实施例提供了一种占用便携式移动终端的厚度空间较少,便于 安装、成本低廉且可以使便携式移动终端音质更为理想的扬声器音腔密封 结构以及设有该扬声器音腔密封结构的便携式移动终端。 The embodiment of the invention provides a speaker sound chamber sealing structure that occupies less space of the portable mobile terminal, is convenient to install, has low cost, and can make the sound quality of the portable mobile terminal more ideal, and is portable with the speaker sound chamber sealing structure. Mobile terminal.
如图 1、 图 2和图 7所示, 本发明实施例所提供的扬声器音腔密封结 构, 包括如图 2所示呈罩状的支架 1、 弹性材料制成的如图 7所示的隔音 垫 2以及电路板 3 , 其中: As shown in FIG. 1 , FIG. 2 and FIG. 7 , the speaker sound chamber sealing structure provided by the embodiment of the present invention includes a cover-shaped bracket 1 as shown in FIG. 2 , and an acoustic material as shown in FIG. 7 . Pad 2 and circuit board 3, where:
支架 1上开设有呈内凹形如图 3所示的前音腔 4 , 前音腔 4罩设于如 图 1所示扬声器 5的发声部分 50上;扬声器 5上远离发声部分 50的部分 与电路板 3位置相对; 扬声器 5周围的电路板 3上固设有元器件 6; 隔音 垫 2呈封闭曲线形, 且环绕扬声器 5 , 支架 1的边沿抵压于隔音垫 2上, 并将隔音垫 2压靠于电路板 3 以及元器件 6上。 The bracket 1 is provided with a front sound chamber 4 having a concave shape as shown in FIG. 3, and the front sound chamber 4 is disposed on the sound emitting portion 50 of the speaker 5 as shown in FIG. 1; the portion of the speaker 5 remote from the sound emitting portion 50 is The circuit board 3 is oppositely positioned; the component 6 is fixed on the circuit board 3 around the speaker 5; the soundproofing pad 2 has a closed curve shape, and surrounds the speaker 5, the edge of the bracket 1 is pressed against the soundproofing pad 2, and the soundproofing pad is 2 is pressed against the circuit board 3 and the component 6.
由于本发明所提供的扬声器音腔密封结构中隔音垫 2呈封闭曲线形, 且环绕扬声器 5 , 支架 1的边沿抵压于隔音垫 2上, 并将隔音垫 2压靠于 电路板 3 以及元器件 6上, 支架 1、 隔音垫 2、 电路板 3 以及元器件 6形 成了一个完整的可以起到隔音作用的密封腔体,密封腔体能够避免扬声器 5的发声部分 50发出声音后, 在扬声器 5 的后方发生谐振或共鸣现象, 进而可以保证扬声器 5具有较好的音质, 由此可见, 本发明充分利用了支 架 1、 电路板 3 以及元器件 6的隔音性能, 支架 1、 隔音垫 2、 电路板 3 以及元器件 6形成的密封腔体,起到了现有的扬声器音腔密封结构中密封 盒所起的作用;
同时, 由于本发明中未设置塑胶薄片制成的密封盒, 故而节省了密封 盒在便携式移动终端厚度方向上所占用的空间, 而且隔音垫 2位于支架 1 的边沿处, 不会影响电路板 3上元器件 6与扬声器 5之间的位置关系, 元 器件 6可以充分利用扬声器 5周围在设有该扬声器音腔密封结构的便携式 移动终端厚度方向上的空间,进而可以使得隔音垫 2在便携式移动终端厚 度方向上所浪费的空间远小于塑胶薄片制成的密封盒在便携式移动终端 厚度方向上所浪费的空间, 故而使得便携式移动终端内用于容纳扬声器 5 的空间更为充裕,可以选用厚度尺寸较大、声音效果更为理想的扬声器 5 , 所以解决了现有的扬声器音腔密封结构占用便携式移动终端的厚度空间 较多, 导致便携式移动终端音质较差的技术问题; Since the soundproofing pad 2 of the speaker sound chamber sealing structure provided by the present invention has a closed curve shape and surrounds the speaker 5, the edge of the bracket 1 is pressed against the soundproofing pad 2, and the soundproofing pad 2 is pressed against the circuit board 3 and the element. On the device 6, the bracket 1, the soundproofing pad 2, the circuit board 3, and the component 6 form a complete sealed cavity capable of soundproofing, and the sealed cavity can prevent the sounding portion 50 of the speaker 5 from emitting sound after the speaker Resonance or resonance occurs at the rear of 5, which in turn ensures that the speaker 5 has better sound quality. Thus, the present invention fully utilizes the sound insulation performance of the bracket 1, the circuit board 3, and the component 6, the bracket 1, the soundproof pad 2, The sealed cavity formed by the circuit board 3 and the component 6 functions as a sealed box in the existing speaker sound cavity sealing structure; At the same time, since the sealing box made of the plastic sheet is not provided in the invention, the space occupied by the sealing box in the thickness direction of the portable mobile terminal is saved, and the soundproofing pad 2 is located at the edge of the bracket 1 without affecting the circuit board 3 The positional relationship between the upper component 6 and the speaker 5, the component 6 can make full use of the space around the speaker 5 in the thickness direction of the portable mobile terminal provided with the speaker cavity sealing structure, thereby enabling the soundproofing pad 2 to be portablely moved. The space wasted in the thickness direction of the terminal is much smaller than the space wasted by the sealed box made of plastic sheet in the thickness direction of the portable mobile terminal, so that the space for accommodating the speaker 5 in the portable mobile terminal is more abundant, and the thickness dimension can be selected. The speaker 5 with larger sound effect is more ideal, so the existing speaker cavity sealing structure occupies more space of the portable mobile terminal, which leads to a technical problem of poor sound quality of the portable mobile terminal;
除此之外, 本发明所使用的隔音垫 2由弹性材料制成, 由于低成本的 弹性材料是相当多的,故而本发明可以使得隔音垫 2的成本远低于塑胶薄 片制成的密封盒, 进而更有利于降低成本, 而且本发明中可以采用抵压的 方式定位隔音垫 2 , 与现有技术中采用超声焊工艺固定密封盒的方式相 比, 本发明安装操作更为筒单、 方便, 所耗费的时间也更少, 所以生产效 率也更高。 In addition, the sound insulating mat 2 used in the present invention is made of an elastic material. Since the low-cost elastic material is quite large, the present invention can make the cost of the sound insulating mat 2 much lower than that of the plastic sheet. Moreover, the cost is further reduced, and the sound insulating pad 2 can be positioned in a pressing manner in the present invention. Compared with the prior art method of fixing the sealed box by the ultrasonic welding process, the installation operation of the present invention is more simple and convenient. , it takes less time, so the production efficiency is higher.
如图 6和图 8所示,本实施例中元器件 6为罩设于如图 1所示电路板 3上的电子器件外的电磁屏蔽罩, 支架 1的边沿抵压于隔音垫 2上, 并将 隔音垫 2压靠于电路板 3以及电磁屏蔽罩接近扬声器 5的部分上。电路板 3上尤其是便携式移动终端内电路板 3上的电子器件存在电磁干扰的概率 比较高, 所以设置电磁屏蔽罩可以有效地避免电子器件之间的电磁干扰。 由于电磁屏蔽罩多采用金属材料, 而金属材料本身具有较好的隔音性能, 所以本实施例中支架 1的边沿抵压于隔音垫 2上,并将隔音垫 2压靠于电 路板 3以及电磁屏蔽罩接近扬声器 5的部分上时, 可以使得支架 1、 隔音 垫 2、 电路板 3以及电磁屏蔽罩形成了一个完整的可以起到较佳隔音作用 的密封腔体。 当然, 本实施例中元器件 6也可以为防护罩等电磁屏蔽罩之
外的其他元器件。 As shown in FIG. 6 and FIG. 8 , in the embodiment, the component 6 is an electromagnetic shielding cover disposed outside the electronic device on the circuit board 3 shown in FIG. 1 , and the edge of the bracket 1 is pressed against the sound insulating pad 2 . The soundproofing mat 2 is pressed against the circuit board 3 and the portion of the electromagnetic shield that is close to the speaker 5. The electronic device on the circuit board 3, especially the electronic device on the circuit board 3 in the portable mobile terminal, has a relatively high probability of electromagnetic interference. Therefore, the electromagnetic shielding cover can effectively avoid electromagnetic interference between the electronic devices. Since the electromagnetic shielding cover is mostly made of a metal material, and the metal material itself has good sound insulation performance, the edge of the bracket 1 in this embodiment is pressed against the sound insulating mat 2, and the soundproofing mat 2 is pressed against the circuit board 3 and the electromagnetic When the shield is close to the portion of the speaker 5, the bracket 1, the sound insulating mat 2, the circuit board 3, and the electromagnetic shield can be formed into a complete sealed cavity which can provide better sound insulation. Of course, the component 6 in this embodiment may also be an electromagnetic shielding cover such as a protective cover. Other components outside.
支架 1的边沿固设有朝接近电路板 3的方向上延伸如图 5和图 7所示 的隔音壁 7 , 隔音垫 2粘结于隔音壁 7的顶部, 且隔音垫 2介于隔音壁 7 与电路板 3之间或介于隔音壁 7与电磁屏蔽罩之间。 The rim of the bracket 1 is fixed to the sound insulating wall 7 as shown in FIGS. 5 and 7 in the direction of approaching the circuit board 3, the sound insulating mat 2 is bonded to the top of the sound insulating wall 7, and the sound insulating mat 2 is interposed between the sound insulating wall 7. Between the circuit board 3 or between the sound insulating wall 7 and the electromagnetic shielding cover.
隔音壁 7不仅起到隔音的作用,而且可以提高支架 1的边沿抵压于隔 音垫 2的 4氏压力的压强。 将隔音垫 2粘结于隔音壁 7的顶部时, 一方面可 以进一步保证隔音垫 2与隔音壁 7之间紧密连接, 进而保证支架 1、 隔音 垫 2、电路板 3以及电磁屏蔽罩形成的具有隔音作用的密封腔体的密封性; 另一方面, 将隔音垫 2粘结于隔音壁 7上之后再将支架 1罩设于电路板 3 以及电磁屏蔽罩上时, 安装操作会更为方便。 本实施例中隔音垫 2优选为 使用双面胶粘结于隔音壁 7的顶部, 当然, 本实施例中也可以使用其他胶 水或绑接结构等其他连接方式将隔音垫 2固定于隔音壁 7的顶部。 The sound insulating wall 7 not only functions as a soundproofing but also increases the pressure at which the edge of the bracket 1 abuts against the pressure of the diaphragm 2 at 4 degrees. When the sound insulating mat 2 is bonded to the top of the sound insulating wall 7, on the one hand, the tight connection between the sound insulating mat 2 and the sound insulating wall 7 can be further ensured, thereby ensuring the formation of the bracket 1, the sound insulating mat 2, the circuit board 3 and the electromagnetic shielding cover. The sealing effect of the sound-insulating sealing cavity; on the other hand, when the sound insulating mat 2 is bonded to the sound insulating wall 7 and then the bracket 1 is placed on the circuit board 3 and the electromagnetic shielding cover, the mounting operation is more convenient. In this embodiment, the soundproofing pad 2 is preferably bonded to the top of the sound insulating wall 7 by using double-sided tape. Of course, in this embodiment, the sound insulating pad 2 can be fixed to the sound insulating wall 7 by using other bonding means such as other glues or binding structures. the top of.
作为本发明实施例的进一步改进,本实施例中电磁屏蔽罩包括呈盖状 的如图 6所示顶盖 60以及与顶盖 60的四周相连且固定于如图 1所示电路 板 3上的侧部 61 ; As a further improvement of the embodiment of the present invention, the electromagnetic shielding cover in the embodiment includes a top cover 60 as shown in FIG. 6 and a periphery of the top cover 60 and fixed on the circuit board 3 as shown in FIG. Side 61;
在与电路板 3垂直的方向上, 与电磁屏蔽罩的顶盖 60位置相对的隔 音壁 7的高度尺寸小于其他部分的隔音壁 7的高度尺寸; In the direction perpendicular to the circuit board 3, the height of the sound insulating wall 7 opposite to the position of the top cover 60 of the electromagnetic shield is smaller than the height of the sound insulating wall 7 of the other portions;
隔音垫 2还包括至少一个第一弯折部 21 , 第一弯折部 21的两端分别 与位置介于电路板 3、 隔音壁 7之间的如图 7所示隔音垫 2以及位置介于 电磁屏蔽罩的顶盖 60、 隔音壁 7之间的隔音垫 2相连; 在图 3所示的状 态下, 第一折弯部 21呈展开状态; 在图 4所示的状态下, 第一折弯部 21 向下弯向支架 1 ; The soundproofing mat 2 further includes at least one first bent portion 21, and the two ends of the first bent portion 21 are respectively disposed between the circuit board 3 and the sound insulating wall 7 as shown in FIG. The top cover 60 of the electromagnetic shielding cover and the soundproofing pad 2 between the sound insulating walls 7 are connected; in the state shown in FIG. 3, the first bent portion 21 is in an unfolded state; in the state shown in FIG. The bent portion 21 is bent downward toward the bracket 1;
电磁屏蔽罩上还固设有朝接近如图 1所示电路板 3的方向上延伸如图 6和图 8所示的第一抵靠部 63 , 第一抵靠部 63抵压于第一弯折部 21上, 并将第一弯折部 21压靠于隔音壁 7上。 The electromagnetic shield is also fixed with a first abutting portion 63 extending as shown in FIG. 6 and FIG. 8 toward the circuit board 3 as shown in FIG. 1. The first abutting portion 63 is pressed against the first bend. On the folded portion 21, the first bent portion 21 is pressed against the sound insulating wall 7.
第一弯折部 21与第一抵靠部 63所形成的配合结构可以将电磁屏蔽罩
的侧部 61与隔音壁 7之间的间隙密封住, 从而进一步提高了支架 1、 隔 音垫 2、 电路板 3 以及电磁屏蔽罩所形成的具有隔音作用的密封腔体的密 封性。 The matching structure formed by the first bent portion 21 and the first abutting portion 63 can be an electromagnetic shielding cover The side portion 61 is sealed with the gap between the sound insulating walls 7, thereby further improving the sealing of the soundproofing sealing cavity formed by the bracket 1, the sound insulating mat 2, the circuit board 3, and the electromagnetic shield.
如图 6和图 8所示, 电磁屏蔽罩的顶盖 60上还开设有与如图 1所示 扬声器 5位置相对的透气孔 10 , 透气孔 10将支架 1、 隔音垫 2、 电路板 3 以及电磁屏蔽罩所形成的密封腔体与电磁屏蔽罩和电路板 3 所形成的电 磁屏蔽腔体连通起来, 从而提高了支架 1、 隔音垫 2、 电路板 3 以及电磁 屏蔽罩所形成的密封腔体的透气性以及散热性。由于电磁屏蔽罩和电路板 3所形成的电磁屏蔽腔体也具有一定封闭性, 所以顶盖 60所开设的透气 孔 10不会对支架 1、 隔音垫 2、 电路板 3 以及电磁屏蔽罩所形成的密封腔 体的隔音效果有太大影响。 As shown in FIG. 6 and FIG. 8 , the top cover 60 of the electromagnetic shielding cover is further provided with a venting hole 10 opposite to the position of the speaker 5 shown in FIG. 1 , and the venting hole 10 has the bracket 1 , the sound insulating pad 2 , the circuit board 3 , and The sealed cavity formed by the electromagnetic shielding cover communicates with the electromagnetic shielding cavity formed by the electromagnetic shielding cover and the circuit board 3, thereby improving the sealing cavity formed by the bracket 1, the sound insulating pad 2, the circuit board 3 and the electromagnetic shielding cover Breathability and heat dissipation. Since the electromagnetic shielding cavity formed by the electromagnetic shielding cover and the circuit board 3 also has a certain sealing property, the vent hole 10 formed by the top cover 60 is not formed on the bracket 1, the sound insulating pad 2, the circuit board 3, and the electromagnetic shielding cover. The sound insulation effect of the sealed cavity has a great influence.
如图 4、 图 5和图 8所示, 作为本发明实施例的进一步改进, 本实施 例中隔音垫 2还包括至少一个第二弯折部 22 , 第二弯折部 22与位置介于 电路板 3、 隔音壁 7之间的隔音垫 2接近电磁屏蔽罩的部分的边沿相连, 且其朝远离电路板 3的方向上弯折; 在图 3所示状态下, 第二折弯部 22 呈展开状态; 在图 4所示状态下, 第二折弯部 22向下弯向支架 1 ; As shown in FIG. 4, FIG. 5 and FIG. 8, as a further improvement of the embodiment of the present invention, the sound insulating mat 2 in the embodiment further includes at least one second bent portion 22, and the second bent portion 22 and the position are interposed between the circuits. The soundproofing pad 2 between the plate 3 and the sound insulating wall 7 is connected to the edge of the portion of the electromagnetic shielding cover, and is bent in a direction away from the circuit board 3; in the state shown in FIG. 3, the second bending portion 22 is Expanded state; in the state shown in Figure 4, the second bent portion 22 is bent downward toward the bracket 1;
电磁屏蔽罩的侧部 61 固设有呈外凸形的凸沿 62 , 凸沿 62的边沿固 设有朝接近电路板 3 的方向上延伸的至少一个第二抵靠部 64 , 第二抵靠 部 64抵压于第二弯折部 22上, 并将第二弯折部 22压靠于隔音壁 7上。 The side portion 61 of the electromagnetic shielding cover is fixed with a convex edge 62 which is convex, and the edge of the protruding edge 62 is fixed with at least one second abutting portion 64 extending in the direction of approaching the circuit board 3, and the second abutting portion The portion 64 is pressed against the second bent portion 22 and presses the second bent portion 22 against the sound insulating wall 7.
与第一弯折部 21与第一抵靠部 63所形成的配合结构同理,第二弯折 部 22与第二抵靠部 64所形成的配合结构使得电磁屏蔽罩与隔音壁 7的配 合更为紧密, 从而进一步提高了支架 1、 隔音垫 2、 电路板 3以及电磁屏 蔽罩形成的具有隔音作用的密封腔体的密封性。 The same as the matching structure formed by the first bending portion 21 and the first abutting portion 63, the matching structure formed by the second bending portion 22 and the second abutting portion 64 makes the electromagnetic shielding cover and the sound insulating wall 7 cooperate. More compact, thereby further improving the sealing of the sound-insulating sealing cavity formed by the bracket 1, the sound insulating mat 2, the circuit board 3, and the electromagnetic shield.
作为本实施例的进一步改进,本实施例中电磁屏蔽罩与如图 6所示凸 沿 62、 第一抵靠部 63、 第二抵靠部 64为一体式结构, 和 /或, 位置介于 如图 1所示电路板 3、 如图 7所示隔音壁 7之间的隔音垫 2与如图 3和图
5所示第一弯折部 21、 第二弯折部 22为一体式机构。 一体式结构不仅连 接可靠而且便于一次成型制造, 本实施例中电磁屏蔽罩以及凸沿 62、 第 二抵靠部 64 可以由一块金属板裁剪、 弯折得到。 位置介于电路板 3、 隔 音壁 7之间的隔音垫 2与第一弯折部 21、 第二弯折部 22为一体式结构, 使得位置介于电路板 3、 隔音壁 7之间的隔音垫 2与位置介于电磁屏蔽罩 的顶盖 60、 隔音壁 7之间的隔音垫 2可以分别进行粘结操作, 进而使得 隔音垫 2的粘结操作更为方便。 As a further improvement of the embodiment, in this embodiment, the electromagnetic shielding cover is integrally formed with the protruding edge 62, the first abutting portion 63, and the second abutting portion 64 as shown in FIG. 6, and/or the position is between As shown in Figure 1, the circuit board 3, as shown in Figure 7, between the soundproofing walls 7 between the soundproofing mat 2 and Figure 3 and The first bent portion 21 and the second bent portion 22 shown in Fig. 5 are an integral mechanism. The integrated structure is not only reliable in connection but also easy to manufacture in one time. In this embodiment, the electromagnetic shielding cover and the flange 62 and the second abutting portion 64 can be cut and bent by a metal plate. The soundproofing mat 2 disposed between the circuit board 3 and the sound insulating wall 7 is integrated with the first bent portion 21 and the second bent portion 22, so that the soundproofing between the circuit board 3 and the sound insulating wall 7 is made. The mat 2 and the sound insulating mat 2 interposed between the top cover 60 of the electromagnetic shielding cover and the sound insulating wall 7 can be respectively bonded, thereby making the bonding operation of the sound insulating mat 2 more convenient.
如图 4和图 5所示,支架 1的边沿还固设有至少一个呈弯头状的卡扣 8 , 卡扣 8的末端朝接近支架 1的中心区域的方向延伸, 且卡扣 8的末端 与电路板 3的边沿上远离扬声器 5的一侧相抵靠。本实施例中支架 1通过 卡扣 8与电路板 3的边沿之间的配合结构与电路板 3可拆卸连接, 卡扣 8 与电路板 3的边沿之间的配合结构不仅安装筒单、 方便, 而且可以有效地 将支架 1与电路板 3可拆卸固定在一起。本实施例中支架 1上固设有六个 卡扣 8 , 六个卡扣 8从多个角度将支架 1与电路板 3可拆卸固定在一起。 As shown in FIG. 4 and FIG. 5, the rim of the bracket 1 is further provided with at least one buckle 8 in the shape of a bend, and the end of the buckle 8 extends in a direction close to the central area of the bracket 1, and the end of the buckle 8 Abuts the side of the circuit board 3 on the edge away from the speaker 5. In this embodiment, the bracket 1 is detachably connected to the circuit board 3 through the mating structure between the buckle 8 and the edge of the circuit board 3. The mating structure between the buckle 8 and the edge of the circuit board 3 is not only simple and convenient to install. Moreover, the bracket 1 and the circuit board 3 can be detachably fixed together. In the embodiment, six brackets 8 are fixed on the bracket 1, and the six buckles 8 detachably fix the bracket 1 and the circuit board 3 from a plurality of angles.
如图 4和图 8所示, 支架 1上还固设有呈柱状的定位柱 9 , 如图 1所 示电路板 3上开设有定位孔, 定位柱 9嵌于定位孔内。 定位柱 9与定位孔 的配合结构, 使得支架 1与电路板 3的安装操作更为方便, 只需将支架 1 上的定位柱 9对齐定位孔, 然后朝接近电路板 3的方向上施加推力, 便可 以将支架 1快速、 准确的插接于电路板 3上。 As shown in FIG. 4 and FIG. 8 , a positioning post 9 is also fixed on the bracket 1 , and a positioning hole is formed on the circuit board 3 as shown in FIG. 1 , and the positioning post 9 is embedded in the positioning hole. The matching structure of the positioning post 9 and the positioning hole makes the mounting operation of the bracket 1 and the circuit board 3 more convenient. It is only necessary to align the positioning post 9 on the bracket 1 with the positioning hole, and then apply a thrust toward the circuit board 3, The bracket 1 can be quickly and accurately inserted into the circuit board 3.
如图 9所示, 为图 4或图 8中所示上隔音垫的立体示意图。 在本发明 的各实施例中, 所述上隔音垫指的是在图 4或图 8所示状态下, 粘结在支 架 1上且位于图 4或图 8的上部的隔音垫, 如可以是位置介于电路板 3、 隔音壁 7之间的隔音垫。 As shown in Fig. 9, it is a perspective view of the upper soundproofing pad shown in Fig. 4 or Fig. 8. In various embodiments of the present invention, the upper soundproofing pad refers to a soundproofing pad bonded to the bracket 1 and located at the upper portion of FIG. 4 or FIG. 8 in the state shown in FIG. 4 or FIG. 8, as may be The soundproofing pad is placed between the circuit board 3 and the sound insulating wall 7.
如图 10所述, 为本发明的实施例所提供的扬声器音腔密封结构中隔 音垫的立体示意图。 本实施例中隔音垫 2为泡棉或硅胶材料制成。 泡棉与 硅胶均为弹性较好,且均具有较好的隔音性能,适宜应用于制作隔音垫 2。
本实施例中隔音垫 2优选为泡棉材料制成。 泡棉具有弯曲自如、 弹性好、 重量轻且性能可靠等优点, 更适宜应用于制作隔音垫 2。 As shown in FIG. 10, it is a perspective view of a soundproofing pad in a speaker sound cavity sealing structure provided by an embodiment of the present invention. In this embodiment, the sound insulating mat 2 is made of foam or silicone material. Both foam and silica gel have good elasticity and have good sound insulation properties, and are suitable for making soundproof mats 2. The sound insulating mat 2 in this embodiment is preferably made of a foam material. The foam has the advantages of bending, flexibility, light weight and reliable performance, and is more suitable for the production of the soundproof mat 2.
本发明实施例所提供的便携式移动终端, 包括如图 1 所示扬声器 5 以及上述本发明实施例所提供的扬声器音腔密封结构。 The portable mobile terminal provided by the embodiment of the present invention comprises a speaker 5 as shown in FIG. 1 and a speaker sound chamber sealing structure provided by the above embodiment of the present invention.
由于本发明实施例所提供的便携式移动终端具有与上述本发明实施 例所提供的扬声器音腔密封结构相同的技术特征,所以也能产生相同的技 术效果, 解决相同的技术问题。 Since the portable mobile terminal provided by the embodiment of the present invention has the same technical features as the speaker sound chamber sealing structure provided by the embodiment of the present invention described above, the same technical effect can be produced and the same technical problem can be solved.
上述本实施例所提供的扬声器音腔密封结构中的电路板优选为便携 式移动终端的主板。便携式移动终端的主板上空间充足且通常与扬声器位 置相对,适宜应用本发明实施例所提供的扬声器音腔密封结构对扬声器的 音腔进行密封。 The circuit board in the speaker sound chamber sealing structure provided in the above embodiment is preferably a main board of a portable mobile terminal. The space on the main board of the portable mobile terminal is sufficient and generally opposite to the position of the speaker. The speaker cavity sealing structure provided by the embodiment of the present invention is suitable for sealing the sound cavity of the speaker.
当然,本发明实施例所提供的扬声器音腔密封结构也可以应用于便携 式移动终端之外的其他电子设备上。 Of course, the speaker sound chamber sealing structure provided by the embodiment of the present invention can also be applied to other electronic devices than the portable mobile terminal.
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明 的保护范围应以权利要求的保护范围为准。
The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.
Claims
1、 一种扬声器音腔密封结构, 其特征在于: 包括呈罩状的支架、 弹性 材料制成的隔音垫以及电路板, 其中: A speaker sound chamber sealing structure, comprising: a cover-like bracket, a soundproofing pad made of an elastic material, and a circuit board, wherein:
所述支架上开设有呈内 形的前音腔, 所述前音腔罩设于扬声器的发 声部分上; The bracket is provided with an inner sound chamber, and the front sound chamber cover is disposed on the sounding portion of the speaker;
所述扬声器上远离所述发声部分的部分与所述电路板位置相对; 所述扬声器周围的所述电路板上固设有元器件; a portion of the speaker remote from the sound emitting portion is opposite to a position of the circuit board; a component is fixed on the circuit board around the speaker;
所述隔音垫呈封闭曲线形, 且环绕所述扬声器, 所述支架的边沿抵压 于所述隔音垫上, 并将所述隔音垫压靠于所述电路板以及所述元器件上。 The soundproofing pad has a closed curve shape and surrounds the speaker, the edge of the bracket is pressed against the soundproofing pad, and the soundproofing pad is pressed against the circuit board and the component.
2、 根据权利要求 1所述的扬声器音腔密封结构, 其特征在于: 所述元 器件为罩设于所述电路板上的电子器件外的电磁屏蔽罩, 所述支架的边沿 抵压于所述隔音垫上, 并将所述隔音垫压靠于所述电路板以及所述电磁屏 蔽罩接近所述扬声器的部分上。 2. The speaker sound chamber sealing structure according to claim 1, wherein: the component is an electromagnetic shielding cover disposed outside the electronic device on the circuit board, and the edge of the bracket is pressed against the The sound insulating mat is pressed against the circuit board and the electromagnetic shield is adjacent to a portion of the speaker.
3、 根据权利要求 2所述的扬声器音腔密封结构, 其特征在于: 所述支 架的边沿固设有朝接近所述电路板的方向上延伸的隔音壁, 所述隔音垫粘 结于所述隔音壁的顶部, 且所述隔音垫介于所述隔音壁与所述电路板之间 或介于所述隔音壁与所述电磁屏蔽罩之间。 3. The speaker sound chamber sealing structure according to claim 2, wherein: the rim of the bracket is fixed with a sound insulating wall extending in a direction approaching the circuit board, and the sound insulating mat is bonded to the a top of the sound insulating wall, and the sound insulating mat is interposed between the sound insulating wall and the circuit board or between the sound insulating wall and the electromagnetic shielding cover.
4、 根据权利要求 3所述的扬声器音腔密封结构, 其特征在于: 所述电 磁屏蔽罩包括呈盖状的顶部以及与所述顶部的四周相连且固定于所述电路 板上的侧部; The speaker sound chamber sealing structure according to claim 3, wherein: the electromagnetic shielding cover comprises a top portion having a cover shape and a side portion connected to the periphery of the top portion and fixed to the circuit board;
在与所述电路板垂直的方向上, 与所述电磁屏蔽罩的顶部位置相对的 所述隔音壁的高度尺寸小于其他部分的所述隔音壁的高度尺寸; In a direction perpendicular to the circuit board, a height dimension of the sound insulating wall opposite to a top position of the electromagnetic shield is smaller than a height dimension of the sound insulating wall of other portions;
所述隔音垫还包括至少一个第一弯折部, 所述第一弯折部的两端分别 与位置介于所述电路板、 所述隔音壁之间的所述隔音垫以及位置介于所述 电磁屏蔽罩的顶部、 所述隔音壁之间的所述隔音垫相连; 所述电磁屏蔽罩上还固设有朝接近所述电路板的方向上延伸的第一抵 靠部, 所述第一抵靠部抵压于所述第一弯折部上, 并将所述第一弯折部压 靠于所述隔音壁上。 The soundproofing mat further includes at least one first bent portion, and the two ends of the first bent portion are respectively spaced apart from the soundproofing pad and the position between the circuit board and the sound insulating wall The top of the electromagnetic shielding cover and the soundproofing pad between the sound insulating walls are connected; a first abutting portion extending toward the circuit board is further fixed on the electromagnetic shielding cover, the first abutting portion is pressed against the first bending portion, and the The first bent portion is pressed against the sound insulating wall.
5、 根据权利要求 4所述的扬声器音腔密封结构, 其特征在于: 所述隔 音垫还包括至少一个第二弯折部,所述第二弯折部与位置介于所述电路板、 所述隔音壁之间的所述隔音垫接近所述电磁屏蔽罩的部分的边沿相连, 且 其朝远离所述电路板的方向上弯折; The speaker sound chamber sealing structure according to claim 4, wherein: the sound insulating mat further comprises at least one second bent portion, the second bent portion and the position being between the circuit board and the The sound insulating mat between the sound insulating walls is connected to an edge of a portion of the electromagnetic shielding cover, and is bent in a direction away from the circuit board;
所述电磁屏蔽罩的侧部固设有呈外凸形的凸沿, 所述凸沿的边沿固设 有朝接近电路板的方向上延伸的至少一个第二抵靠部, 所述第二抵靠部抵 压于所述第二弯折部上, 并将所述第二弯折部压靠于所述隔音壁上。 The side of the electromagnetic shielding cover is fixed with a convex edge, and the edge of the protruding edge is fixed with at least one second abutting portion extending in a direction of approaching the circuit board, and the second abutting The abutment is pressed against the second bent portion, and the second bent portion is pressed against the sound insulating wall.
6、 根据权利要求 5所述的扬声器音腔密封结构, 其特征在于: 所述电 磁屏蔽罩与所述凸沿、 所述第一抵靠部、 所述第二抵靠部为一体式结构, 和 /或, 位置介于所述电路板、 所述隔音壁之间的所述隔音垫与所述第一弯 折部、 所述第二弯折部为一体式机构。 The speaker sound chamber sealing structure according to claim 5, wherein: the electromagnetic shielding cover and the protruding edge, the first abutting portion and the second abutting portion are integrated structures, And/or, the soundproofing pad located between the circuit board and the soundproof wall and the first bending part and the second bending part are an integral mechanism.
7、 根据权利要求 1所述的扬声器音腔密封结构, 其特征在于: 所述支 架的边沿还固设有至少一个呈弯头状的卡扣, 所述卡扣的末端朝接近所述 支架的中心区域的方向延伸, 且所述卡扣的末端与所述电路板的边沿上远 离所述扬声器的一侧相抵靠。 The speaker sound chamber sealing structure according to claim 1, wherein: the rim of the bracket is further provided with at least one buckle having a bent shape, and the end of the buckle is directed toward the bracket. The direction of the central region extends and the end of the buckle abuts the side of the edge of the circuit board remote from the speaker.
8、 根据权利要求 1所述的扬声器音腔密封结构, 其特征在于: 所述支 架上还固设有呈柱状的定位柱, 所述电路板上开设有定位孔, 所述定位柱 嵌于所述定位孔内。 The speaker sound chamber sealing structure according to claim 1, wherein: the bracket is further provided with a columnar positioning post, and the circuit board is provided with a positioning hole, and the positioning post is embedded in the Locating inside the hole.
9、 根据权利要求 1所述的扬声器音腔密封结构, 其特征在于: 所述隔 音垫为泡棉或硅胶材料制成。 9. The speaker acoustic cavity sealing structure according to claim 1, wherein: said sound insulating pad is made of a foam or a silicone material.
10、 一种便携式移动终端, 其特征在于: 包括扬声器以及权利要求 1 至 9任一所述扬声器音腔密封结构。 A portable mobile terminal, comprising: a speaker and the speaker sound chamber sealing structure according to any one of claims 1 to 9.
Applications Claiming Priority (2)
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CN201010240061.7 | 2010-07-29 | ||
CN 201010240061 CN101895798B (en) | 2010-07-29 | 2010-07-29 | Sound cavity sealing structure of loudspeaker, and portable mobile terminal |
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WO (1) | WO2012013098A1 (en) |
Families Citing this family (20)
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CN101895798B (en) * | 2010-07-29 | 2013-03-13 | 青岛海信移动通信技术股份有限公司 | Sound cavity sealing structure of loudspeaker, and portable mobile terminal |
CN102347998A (en) * | 2011-06-28 | 2012-02-08 | 宇龙计算机通信科技(深圳)有限公司 | Mobile terminal and sound cavity structure of speaker thereof |
CN103517165A (en) * | 2012-06-27 | 2014-01-15 | 比亚迪股份有限公司 | Loudspeaker sound cavity structure and mobile terminal using same |
CN103596082A (en) * | 2012-08-15 | 2014-02-19 | 刘骏涛 | Miniature sound box provided with telescopic resonance cavity |
CN103648259A (en) * | 2013-11-15 | 2014-03-19 | 天津天地伟业数码科技有限公司 | Anti-radiation shielding cover of monitoring camera |
CN103686494B (en) * | 2013-12-11 | 2017-11-24 | 华为终端(东莞)有限公司 | A kind of electronic equipment |
DE102014105754B4 (en) * | 2014-04-24 | 2022-02-10 | USound GmbH | Loudspeaker arrangement with circuit board integrated ASIC |
CN104683908A (en) * | 2015-03-03 | 2015-06-03 | 深圳市智科通讯有限公司 | Loudspeaker structure of mobile terminal |
CN104967926B (en) * | 2015-06-16 | 2018-09-11 | 成都西可科技有限公司 | A kind of sealing of loudspeaker sound chamber and go out sound structure |
CN105208470A (en) * | 2015-09-22 | 2015-12-30 | 天津市金汇兴自行车有限公司 | Loudspeaker support in communication device and communication device |
CN106993250B (en) * | 2017-05-17 | 2023-01-10 | Oppo广东移动通信有限公司 | Loudspeaker assembly and mobile terminal |
CN107197398B (en) * | 2017-06-21 | 2023-09-29 | Oppo广东移动通信有限公司 | Speaker assembly and mobile terminal |
CN109327746A (en) * | 2017-07-31 | 2019-02-12 | 西安中兴新软件有限责任公司 | A kind of terminal |
CN107547997B (en) * | 2017-10-13 | 2020-06-02 | Oppo广东移动通信有限公司 | Circuit board assembly and electronic equipment |
CN110271495A (en) * | 2018-03-13 | 2019-09-24 | 标致雪铁龙汽车股份有限公司 | Chamber mount and vehicle for vehicle speakers unit |
CN111356048A (en) * | 2020-03-24 | 2020-06-30 | 海信集团有限公司 | Display device |
CN112769988B (en) * | 2020-12-31 | 2023-04-14 | Oppo广东移动通信有限公司 | Electronic device |
CN112788166B (en) * | 2021-01-06 | 2022-12-27 | Oppo广东移动通信有限公司 | Electronic device |
CN114810750A (en) * | 2021-01-22 | 2022-07-29 | 高创(苏州)电子有限公司 | Assembly structure and buckle structure |
CN117714948A (en) * | 2023-05-19 | 2024-03-15 | 荣耀终端有限公司 | Speaker seal structure, housing assembly and electronic equipment |
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CN201123121Y (en) * | 2007-11-28 | 2008-09-24 | 中兴通讯股份有限公司 | Mobile terminal and speaker cavity used for the same |
CN101729613A (en) * | 2008-10-16 | 2010-06-09 | 英华达(上海)电子有限公司 | Sound arrester of portable equipment and installation method thereof |
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