WO2020024523A1 - Sound generation apparatus and portable terminal - Google Patents

Sound generation apparatus and portable terminal Download PDF

Info

Publication number
WO2020024523A1
WO2020024523A1 PCT/CN2018/121126 CN2018121126W WO2020024523A1 WO 2020024523 A1 WO2020024523 A1 WO 2020024523A1 CN 2018121126 W CN2018121126 W CN 2018121126W WO 2020024523 A1 WO2020024523 A1 WO 2020024523A1
Authority
WO
WIPO (PCT)
Prior art keywords
box body
sound
cavity
speaker unit
box
Prior art date
Application number
PCT/CN2018/121126
Other languages
French (fr)
Chinese (zh)
Inventor
朱婷
马江羽
李军
张军
Original Assignee
歌尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020024523A1 publication Critical patent/WO2020024523A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the invention relates to the technical field of electroacoustics, and in particular to a sound generating device and a portable terminal.
  • the existing sound generating device When the existing sound generating device is applied to a portable terminal such as a mobile phone, tablet, or notebook computer, in order to achieve stereo sound, it needs to be applied to an environment with an open back cavity, that is, the inner cavity of the portable terminal is used as the back cavity; then, because In the stereo mode, the speaker unit of the sound generating device will generate strong vibration, and part of the vibration energy will cause excessive vibration of the applied portable terminal, thereby reducing the user application experience.
  • the main purpose of the present invention is to provide a sound generating device, which aims to solve the technical problem that the existing sound generating device will cause excessive vibration of the standby portable terminal in the stereo mode.
  • the sound generating device provided by the present invention includes:
  • the speaker unit includes a housing, a vibration system and a magnetic circuit system housed in the housing;
  • a rear acoustic cavity is formed between the diaphragm of the vibration system and the magnetic yoke of the magnetic circuit system, and the speaker unit is provided with an internal leak hole communicating with the rear acoustic cavity;
  • the vibration reduction unit includes a box body and a sound absorbing material filled in the inner cavity of the box body;
  • the inner cavity of the box body is in butt communication with the inner leak hole, and the box body is provided with an external leak hole that connects the inner cavity of the box body and the outer side of the box body.
  • the box body is located at a lateral periphery of the speaker unit.
  • the box body is provided with two and is located on two opposite sides of the speaker unit, and the casing is provided with the inner leakage hole corresponding to the two box bodies, respectively.
  • the outer contour of the front view where the speaker unit and the box body are combined is rectangular.
  • the housing includes a front cover and a frame body, the front cover covers the frame body and surrounds the frame body to form a receiving cavity, and the vibration system and the magnetic circuit system are located in the receiving cavity.
  • the box body is integrally provided with the frame body.
  • the box body is in an elongated shape that is bent and extended, and is arranged along a circumferential direction of a side surface of the speaker unit.
  • a plurality of the box bodies are provided, and a plurality of the box bodies are connected end to end to surround the speaker unit, and the casing is provided with the inner leakage holes corresponding to the plurality of box bodies, respectively.
  • the side surface of the speaker unit includes two oppositely disposed first side surfaces and two oppositely disposed second side surfaces between the two first side surfaces;
  • a recessed portion is formed on a bottom surface of the speaker unit at a junction between the first side surface and the second side surface, and each of the recessed portions is provided with the internal leakage hole.
  • each box extends along the adjacent first and second sides.
  • each box body is provided with a partition corresponding to the recess, and the partition partitions the inner cavity of the box body into two independent channels;
  • the box body is respectively provided with the external leakage holes corresponding to the two channels, and each of the channels of the box body is correspondingly connected with one of the internal leakage holes.
  • the inner cavity of the box body is provided with a partition plate adjacent to the inner leakage hole, and the partition plate divides the inner cavity of the box body into a filling area and a non-filling area adjacent to the internal leakage hole;
  • the partition board is provided with a sound transmission hole
  • the vibration reduction unit further includes a sound transmission spacer installed at the sound transmission hole, and the sound absorbing material is filled in the filling area.
  • the external leakage hole is provided in the filling area, and in an extending direction of the box body itself, the external leakage hole is provided away from the internal leakage hole.
  • the external leakage hole is opened on a side of the box body remote from the speaker unit.
  • the present invention also provides a portable terminal including a housing, the housing has an accommodation cavity inside, the portable terminal further includes the sound emitting device, the sound emitting device includes a speaker unit and a vibration reduction unit; wherein the speaker unit It comprises a housing, a vibration system and a magnetic circuit system housed in the housing; a rear acoustic cavity is formed between the diaphragm of the vibration system and the magnetic yoke of the magnetic circuit system, and the speaker unit is provided with the rear An internal leakage hole communicating with an acoustic cavity; the vibration damping unit comprises a box body and a sound absorbing material filled in the internal cavity of the box body; the internal cavity of the box body is in communication with the internal leakage hole, and a communication chamber is provided on the box body The internal cavity of the box and an external leakage hole on the outside of the box body, the sound emitting device is installed in the accommodation cavity, and the housing is provided with an acoustic hole corresponding to the diaphragm of the vibration system, and the accommodation cavity
  • the sound emitting device of the present invention is provided in a butt connection with the internal leakage hole of the speaker housing through the box body, and is filled with sound absorbing material in the box body.
  • the external leakage hole provided in the box body is kept in communication with the open rear cavity; During vibration, the airflow generated by the vibration enters the open rear cavity through the internal leakage hole, the inner cavity of the box and the external leakage hole. Through the adsorption of the sound-absorbing material, the friction between the air and the gap in the adsorption material will cause the energy of the air to decay Therefore, after flowing out through the external leakage hole, its vibration energy has been reduced so as not to cause excessive vibration of the applied portable terminal.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a sound generating device according to the present invention
  • FIG. 2 is a schematic structural diagram of a top cover of a vibration reduction unit of the sound generating device in FIG. 1;
  • FIG. 3 is a schematic plan view of a second embodiment of a sound generating device according to the present invention.
  • FIG. 4 is a schematic bottom view structure diagram of the sound generating device in FIG. 3;
  • FIG. 5 is a schematic sectional structural view of a front view of the sound generating device in FIG. 3;
  • FIG. 6 is a schematic cross-sectional structural view of a side of the sound generating device in FIG. 3; FIG.
  • FIG. 7 is a schematic diagram of an exploded structure of the sound generating device in FIG. 3;
  • FIG. 8 is a schematic cross-sectional structural view of a third embodiment of a sound generating device according to the present invention.
  • 100a, 100b, 100c sound generating device; 10a: speaker unit; 1a: housing; 11: front cover; 12: housing; 13a: internal leak hole; 13b: internal leak hole; 21a: diaphragm; 10b: speaker unit 1b: housing; 21b: diaphragm; 3: magnetic yoke; 4: rear acoustic cavity; 5: first side; 6: second side; 7: recess; 20a: vibration damping unit; 8a: box body; 81a : External leakage hole; 20b: vibration damping unit; 8b: box body; 81b: external leakage hole; 82: partition; 83a: channel; 83b: channel; 84: partition plate; 85a: filled area; 85b: filled area; 86a: non-filled area; 86b: non-filled area; 9a: sound-absorbing material; 9b: sound-absorbing material; 9c: sound-absorbing material; 10: sound-permeable spacer; 20: mesh; 20c: vibration damping unit
  • the directional indication is only used to explain in a specific posture (as shown in the drawings) (Shown) the relative positional relationship and movement of each component, etc., if the specific posture changes, the directional indication will change accordingly.
  • the invention provides a sound generating device.
  • the sound emitting device (100a, 100b, 100c) includes a speaker unit (10a, 10b) and a vibration reduction unit (20a, 20b, 20c). );among them,
  • the speaker unit (10a, 10b) includes a casing (1a, 1b), a vibration system and a magnetic circuit system housed in the casing (1a, 1b);
  • the rear acoustic cavity 4 is formed between the diaphragm (21a, 21b) of the vibration system and the magnetic yoke 3 of the magnetic circuit system.
  • the speaker unit (10a, 10b) is provided with an internal leakage hole (13a, 13b) that communicates with the rear acoustic cavity 4. ;
  • the vibration damping unit (20a, 20b, 20c) includes a box body (8a, 8b) and a sound absorbing material (9a, 9b, 9c) filled in the inner cavity of the box body (8a, 8b);
  • the inner cavity of the box body (8a, 8b) is in butt communication with the inner leakage hole (13a, 13b).
  • the box body (8a, 8b) is provided with a connection between the inner cavity of the box body (8a, 8b) and the box body (8a, 8b).
  • the shells (1a, 1b) are similar to the box bodies (8a, 8b), and both are used to provide accommodation and support.
  • the shells (1a, 1b) can be used to support the vibration system and the magnetic circuit system.
  • the housing (1a, 1b) and the box body (8a, 8b) may be provided integrally or separately.
  • the internal leakage holes (13a, 13b) can be directly opened on the casing (1a, 1b) or on the magnetic circuit system, such as the magnetic yoke 3; or the casing (1a, 1b) Cooperate with the yoke 3 to form internal leakage holes (13a, 13b).
  • Both the vibration system and the magnetic circuit system can refer to the existing form.
  • the voice coil of the vibration system is connected to the diaphragm (21a, 21b) of the vibration system.
  • the voice coil extends into the magnetic gap of the magnetic circuit system.
  • the electric current is vibrated by the ampere force of different magnitudes, and the voice coil vibration drives the diaphragm (21a, 21b) to vibrate.
  • the energy conversion method is electric energy-mechanical energy-acoustic energy.
  • the vibration system may further include a weight.
  • the magnetic circuit system may be a single magnetic circuit system, a dual magnetic circuit system, etc.
  • the magnetic gap of the magnetic circuit system is formed between the side magnetic circuit portion and the center magnetic circuit portion.
  • the side magnetic circuit portion and the center magnetic circuit portion At least one of them includes a permanent magnet.
  • the yoke 3 may be a simple flat plate shape or a pot shape with a side wall.
  • the sound absorbing materials (9a, 9b, 9c) can be materials such as loose porous fibers, foam particles, zeolite, activated carbon, etc. that can attenuate air vibration energy.
  • the mesh cloth 20 may be provided at the inner leak holes (13a, 13b) and the outer leak holes (81a, 81b).
  • the structural forms of the internal leakage holes (13a, 13b) and the external leakage holes they may be single through holes or multiple through holes.
  • the external leakage holes (81a, 81b) are Grid-like.
  • the sound emitting device (100a, 100b, 100c) of the present invention is provided in butt connection with the internal leakage holes (13a, 13b) of the speaker housing (1a, 1b) by providing the box bodies (8a, 8b), and is connected to the box bodies (8a, 8b).
  • external leakage holes (81a, 81b) provided on the box body (8a, 8b) are kept in communication with the open rear cavity; when the vibration system of the speaker unit (10a, 10b) During vibration, the airflow generated by vibration passes through the internal leakage holes (13a, 13b), the inner cavity of the box body (8a, 8b) and the external leakage holes into the open rear cavity, and is absorbed by the sound-absorbing material (9a, 9b, 9c).
  • the frictional effect of air and the gap in the adsorption material will cause the energy of the air to decay, so that after flowing out through the external leakage holes (81a, 81b), its vibration energy has been reduced so as not to cause the applied portable terminal to generate excessively large vibration.
  • the vibration direction of the vibration system is defined as the thickness direction
  • the box body (8 a, 8 b) is located at the lateral periphery of the speaker unit (10 a, 10 b).
  • the box body (8a, 8b) is provided with two and are respectively located on opposite sides of the speaker unit (10a, 10b), and the shell (1a, 1b) corresponds to the two box bodies (8a 8b) are provided with internal leakage holes (13a, 13b), respectively.
  • the outer shape of the sound generating device (100a, 100b, 100c) is formed into a long shape, which avoids occupying too much space in multiple dimensions.
  • FIG. 1, FIG. 3 and FIG. 8 again.
  • the front outline of the speaker unit (10a, 10b) and the box body (8a, 8b) is rectangular.
  • the casing (1a, 1b) in order to reduce the number of parts and improve production efficiency, includes a front cover 11 and a frame 12,
  • the cover 11 covers the frame body 12 and encloses the frame body 12 to form a receiving cavity.
  • the vibration system and the magnetic circuit system are located in the receiving cavity.
  • the box body (8a, 8b) is integrally provided with the frame body 12.
  • the box body (8a, 8b) in order to extend the sound propagation path as much as possible and reduce the space occupation, has a long strip shape bent and extended. And arranged along the circumferential direction of the side of the speaker unit (10a, 10b).
  • the box body (8a, 8b) is provided with a plurality of box bodies (8a, 8b) head and tail. Then, the speaker unit (10a, 10b) is surrounded, and the casing (1a, 1b) is respectively provided with internal leakage holes (13a, 13b) corresponding to the plurality of boxes (8a, 8b).
  • the side surfaces of the speaker unit (10 a, 10 b) include two oppositely disposed first side surfaces 5 and two oppositely disposed second side surfaces 6;
  • the bottom surface of the speaker unit (10a, 10b) forms a recessed portion 7 at the junction of the first side surface 5 and the second side surface 6, and each recessed portion 7 is provided with an internal leak hole (13a, 13b).
  • the side magnetic circuit part of the magnetic circuit system such as the side magnetic steel or the yoke 3 side wall is usually along The corresponding first side surface 5 or the second side surface 6 is provided. Therefore, it is more convenient to provide an internal leakage hole (13a, 13b) at the recess 7 to communicate with the back cavity.
  • each box body (8a, 8b) is provided, and each box body (8a, 8b) extends along adjacent first side surfaces 5 and second side surfaces 6.
  • each box body (8a, 8b) is L-shaped. In this way, after installation, the first side 5 and the second side 6 can also be used to limit the position.
  • the number of the boxes (8a, 8b) is relatively small, which is easy to assemble.
  • each box body (8a, 8b) is provided with a partition plate 82 corresponding to the concave portion 7, and the partition plate 82 divides the inner cavity of the box body (8a, 8b) into two independent channels (83a, 83b).
  • the box body (8a, 8b) corresponding to the two channels (83a, 83b) are provided with external leakage holes (81a, 81b), each channel (83a, 83b) of the box body (8a, 8b) corresponds to an internal leakage hole (13a, 13b).
  • each channel (83a, 83b) is provided with external leakage holes (81a, 81b) so that when communicating with the open rear cavity, the diffusion of the airflow is more uniform, so that the sound quality effect that can be achieved is better .
  • the box body (8a, 8b) is provided with two, a total of 8 external leakage holes (81a, 81b) can be formed, and the external leakage holes (81a, 81b) are along the speaker unit (10a, 10b). ).
  • the inner cavity of the box body (8a, 8b) is provided with a partition plate 84 adjacent to the inner leakage hole (13a, 13b).
  • the inner cavity of the body (8a, 8b) is divided into a filling area (85a, 85b) and a non-filling area (86a, 86b) adjacent to the internal leakage hole (13a, 13b); a sound transmitting hole is provided on the partition plate 84 to reduce vibration
  • the unit (20a, 20b, 20c) further includes a sound-transmitting isolator 10 installed at the sound-transmitting hole, and a sound-absorbing material (9a, 9b, 9c) is filled in the filling area (85a, 85b).
  • the rear acoustic cavity 4 can be expanded first to achieve a better buffer effect, that is, in the There is a transitional transmission before the air enters the gap of the sound-absorbing material (9a, 9b, 9c).
  • the sound-transmitting isolator 10 plays a role of isolation while maintaining ventilation.
  • the sound-transmitting isolator 10 may be a flexible and breathable cloth, and may be a mesh cloth.
  • the vibration reduction unit (20a, 20b, 20c) further includes a mesh cloth 20 installed at the external leakage hole (81a, 81b).
  • the external leakage holes (81a, 81b) are provided in the filling areas (85a, 85b), and in the extending direction of the box body (8a, 8b) itself, the external leakage holes (81a, 81b) are far away from the internal leakage hole (13a) , 13b) settings. In this way, the action time of the air-absorbing material (9a, 9b, 9c) can be extended as much as possible to ensure that the vibration energy of the air is effectively attenuated.
  • external leakage holes (81a, 81b) are opened on the side of the box body (8a, 8b) away from the speaker unit (10a, 10b). In this way, it is beneficial to use the rear cavity space located on the lateral periphery to open, and at the same time extend the air propagation path in the box body (8a, 8b).
  • the present invention also provides a portable terminal (not shown), which includes a housing, and the housing has an accommodation cavity therein.
  • the portable terminal further includes a sound generating device (100a, 100b, 100c).
  • the specific details of the sound generating device (100a, 100b, 100c) For the structure, referring to the foregoing embodiments, since the portable terminal adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be described in detail here.
  • the sound generating device (100a, 100b, 100c) is installed in the containing cavity, and the housing is provided with a sound hole corresponding to the diaphragm (21a, 21b) of the vibration system, and the containing cavity has a communication with the external leakage holes (81a, 81b). Expansion cavity.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

Disclosed in the present invention are a sound generation apparatus and a portable terminal. The sound generation apparatus comprises: a speaker unit and a vibration damping unit, wherein the speaker unit comprises a housing, and a vibration system and a magnetic circuit system accommodated in the housing. A rear sound cavity is formed between a vibrating diaphragm of the vibration system and a magnetic yoke of the magnetic circuit system. The speaker unit is provided with internal leakage holes that are in communication with the rear sound cavity. The vibration damping unit comprises a box and a sound absorbing material filled in an internal cavity of the box. The internal cavity of the box abuts the internal leakage holes and is in communication therewith, and the box is provided with external leakage holes that are in communication with the internal cavity of the box and the outside of the box. Before an air flow generated by the speaker unit of the sound generation apparatus of the present invention enters the open rear cavity, the friction between the air and voids in an absorbent material attenuates the energy of air, and thus the vibration energy thereof is reduced to such a low level that the portable terminal to which the sound generation apparatus is applied will not generate excessive vibration.

Description

发声器件及便携终端Sound generating device and portable terminal 技术领域Technical field
本发明涉及电声技术领域，特别涉及一种发声器件及便携终端。The invention relates to the technical field of electroacoustics, and in particular to a sound generating device and a portable terminal.
背景技术Background technique
现有的发声器件在应用于便携终端例如手机、平板电脑或笔记本电脑等产品时，为了实现立体声，需要应用于开放后腔的环境下，即使用便携终端的内腔作为后腔；然后，由于立体声模式下，发声器件的扬声器单元的会产生较强的振动，其中部分振动能量会导致被应用的便携终端产生过大的振动，从而降低了用户应用体验。When the existing sound generating device is applied to a portable terminal such as a mobile phone, tablet, or notebook computer, in order to achieve stereo sound, it needs to be applied to an environment with an open back cavity, that is, the inner cavity of the portable terminal is used as the back cavity; then, because In the stereo mode, the speaker unit of the sound generating device will generate strong vibration, and part of the vibration energy will cause excessive vibration of the applied portable terminal, thereby reducing the user application experience.
发明内容Summary of the invention
本发明的主要目的是提出一种发声器件，旨在解决现有的发声器件在立体声模式下会导致备用的便携终端振动过大的技术问题。The main purpose of the present invention is to provide a sound generating device, which aims to solve the technical problem that the existing sound generating device will cause excessive vibration of the standby portable terminal in the stereo mode.
为实现上述目的，本发明提出的发声器件，包括：In order to achieve the above object, the sound generating device provided by the present invention includes:
扬声器单元及减振单元；其中，Speaker unit and vibration reduction unit;
所述扬声器单元包括壳体、收容在所述壳体内的振动***及磁路***；The speaker unit includes a housing, a vibration system and a magnetic circuit system housed in the housing;
所述振动***的振膜与磁路***的导磁轭之间形成后声腔，所述扬声器单元上设有与所述后声腔连通的内泄漏孔；A rear acoustic cavity is formed between the diaphragm of the vibration system and the magnetic yoke of the magnetic circuit system, and the speaker unit is provided with an internal leak hole communicating with the rear acoustic cavity;
所述减振单元包括盒体及填充在所述盒体内腔的吸音材料；The vibration reduction unit includes a box body and a sound absorbing material filled in the inner cavity of the box body;
所述盒体的内腔与内泄漏孔对接连通，所述盒体上设有连通所述盒体内腔与所述盒体外侧的外泄漏孔。The inner cavity of the box body is in butt communication with the inner leak hole, and the box body is provided with an external leak hole that connects the inner cavity of the box body and the outer side of the box body.
优选地，所述盒***于所述扬声器单元的侧向***。Preferably, the box body is located at a lateral periphery of the speaker unit.
优选地，所述盒体设置有两个且分别位于所述扬声器单元相对的两侧，所述壳体对应两所述盒体分别设置有所述内泄漏孔。Preferably, the box body is provided with two and is located on two opposite sides of the speaker unit, and the casing is provided with the inner leakage hole corresponding to the two box bodies, respectively.
优选地，所述扬声器单元及盒体相拼合的主视外轮廓为矩形。Preferably, the outer contour of the front view where the speaker unit and the box body are combined is rectangular.
优选地，所述壳体包括前盖与框体，所述前盖盖合于所述框体并与所述 框体围合形成收容腔，所述振动***及磁路***位于所述收容腔，所述盒体与框体一体设置。Preferably, the housing includes a front cover and a frame body, the front cover covers the frame body and surrounds the frame body to form a receiving cavity, and the vibration system and the magnetic circuit system are located in the receiving cavity. The box body is integrally provided with the frame body.
优选地，所述盒体呈弯折延伸的长条状，且沿所述扬声器单元侧面的周向布置。Preferably, the box body is in an elongated shape that is bent and extended, and is arranged along a circumferential direction of a side surface of the speaker unit.
优选地，所述盒体设置有多个，多个所述盒体首尾相接而环绕所述扬声器单元，所述壳体对应多个所述盒体分别设置有所述内泄漏孔。Preferably, a plurality of the box bodies are provided, and a plurality of the box bodies are connected end to end to surround the speaker unit, and the casing is provided with the inner leakage holes corresponding to the plurality of box bodies, respectively.
优选地，所述扬声器单元的侧面包括两相对设置的第一侧面以及位于两所述第一侧面之间两相对设置的第二侧面；Preferably, the side surface of the speaker unit includes two oppositely disposed first side surfaces and two oppositely disposed second side surfaces between the two first side surfaces;
所述扬声器单元的底面在所述第一侧面及第二侧面的交接处形成凹部，每一所述凹部设有所述内泄漏孔。A recessed portion is formed on a bottom surface of the speaker unit at a junction between the first side surface and the second side surface, and each of the recessed portions is provided with the internal leakage hole.
优选地，所述盒体设置有两个，每一所述盒体沿相邻的所述第一侧面及第二侧面延伸。Preferably, two boxes are provided, and each box extends along the adjacent first and second sides.
优选地，每一个所述盒体的内腔对应所述凹部设有隔板，所述隔板将所述盒体的内腔分隔为两个独立的通道；Preferably, the inner cavity of each box body is provided with a partition corresponding to the recess, and the partition partitions the inner cavity of the box body into two independent channels;
所述盒体对应两所述通道分别设有所述外泄漏孔，所述盒体的每一所述通道对应连通一所述内泄漏孔。The box body is respectively provided with the external leakage holes corresponding to the two channels, and each of the channels of the box body is correspondingly connected with one of the internal leakage holes.
优选地，所述盒体的内腔邻近内泄漏孔处设有隔断板，所述隔断板将所述盒体的内腔分隔为填充区和邻近所述内泄漏孔的非填充区；Preferably, the inner cavity of the box body is provided with a partition plate adjacent to the inner leakage hole, and the partition plate divides the inner cavity of the box body into a filling area and a non-filling area adjacent to the internal leakage hole;
所述隔断板上设有透声孔，所述减振单元还包括安装在所述透声孔处的透声隔离件，所述所述吸音材料填充在所述填充区。The partition board is provided with a sound transmission hole, the vibration reduction unit further includes a sound transmission spacer installed at the sound transmission hole, and the sound absorbing material is filled in the filling area.
优选地，所述外泄漏孔设置在所述填充区，且在所述盒体自身的延伸方向上，所述外泄漏孔远离所述内泄漏孔设置。Preferably, the external leakage hole is provided in the filling area, and in an extending direction of the box body itself, the external leakage hole is provided away from the internal leakage hole.
优选地，所述外泄漏孔开设在所述盒体的远离所述扬声器单元的一面。Preferably, the external leakage hole is opened on a side of the box body remote from the speaker unit.
本发明还提出一种便携终端，包括外壳，所述壳体内部具有容置腔，所述便携终端还包括所述发声器件，该发声器件包括扬声器单元及减振单元；其中，所述扬声器单元包括壳体、收容在所述壳体内的振动***及磁路***；所述振动***的振膜与磁路***的导磁轭之间形成后声腔，所述扬声器单元上设有与所述后声腔连通的内泄漏孔；所述减振单元包括盒体及填充在所述盒体内腔的吸音材料；所述盒体的内腔与内泄漏孔对接连通，所述盒体上设 有连通所述盒体内腔与所述盒体外侧的外泄漏孔，所述发声器件安装在所述容置腔，所述外壳开设有对应所述振动***的振膜设置的声孔，所述容置腔具有与所述外泄漏孔连通的扩容腔。The present invention also provides a portable terminal including a housing, the housing has an accommodation cavity inside, the portable terminal further includes the sound emitting device, the sound emitting device includes a speaker unit and a vibration reduction unit; wherein the speaker unit It comprises a housing, a vibration system and a magnetic circuit system housed in the housing; a rear acoustic cavity is formed between the diaphragm of the vibration system and the magnetic yoke of the magnetic circuit system, and the speaker unit is provided with the rear An internal leakage hole communicating with an acoustic cavity; the vibration damping unit comprises a box body and a sound absorbing material filled in the internal cavity of the box body; the internal cavity of the box body is in communication with the internal leakage hole, and a communication chamber is provided on the box body The internal cavity of the box and an external leakage hole on the outside of the box body, the sound emitting device is installed in the accommodation cavity, and the housing is provided with an acoustic hole corresponding to the diaphragm of the vibration system, and the accommodation cavity There is a volume expansion cavity in communication with the external leakage hole.
本发明发声器件通过设置盒体与扬声器壳体的内泄漏孔对接连通，并在盒体内填充吸音材料；此外，盒体上设置的外泄漏孔保持与开放后腔连通；当扬声器单元的振动***振动时，振动产生的气流经内泄漏孔、盒体内腔以及外泄露孔进入开放后腔的过程中，通过吸音材料的吸附作用，空气与吸附材料中的空隙的摩擦作用会造成空气的能量衰减，从而经外泄漏孔流出后，其振动能量已降低至不至于引起被应用的便携终端产生过大的振动。The sound emitting device of the present invention is provided in a butt connection with the internal leakage hole of the speaker housing through the box body, and is filled with sound absorbing material in the box body. In addition, the external leakage hole provided in the box body is kept in communication with the open rear cavity; During vibration, the airflow generated by the vibration enters the open rear cavity through the internal leakage hole, the inner cavity of the box and the external leakage hole. Through the adsorption of the sound-absorbing material, the friction between the air and the gap in the adsorption material will cause the energy of the air to decay Therefore, after flowing out through the external leakage hole, its vibration energy has been reduced so as not to cause excessive vibration of the applied portable terminal.
附图说明BRIEF DESCRIPTION OF THE 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简单地介绍，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的前提下，还可以根据这些附图示出的结构获得其他的附图。In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structure shown in these drawings without paying creative work.
图1为本发明发声器件第一实施例的结构示意图；FIG. 1 is a schematic structural diagram of a first embodiment of a sound generating device according to the present invention; FIG.
图2为图1中发声器件的减振单元的顶盖去除后的结构示意图；2 is a schematic structural diagram of a top cover of a vibration reduction unit of the sound generating device in FIG. 1;
图3为本发明发声器件第二实施例的俯视结构示意图；3 is a schematic plan view of a second embodiment of a sound generating device according to the present invention;
图4为图3中发声器件的仰视结构示意图；4 is a schematic bottom view structure diagram of the sound generating device in FIG. 3;
图5为图3中发声器件的一主视剖面结构示意图；5 is a schematic sectional structural view of a front view of the sound generating device in FIG. 3;
图6为图3中发声器件的一侧视剖面结构示意图；FIG. 6 is a schematic cross-sectional structural view of a side of the sound generating device in FIG. 3; FIG.
图7为图3中发声器件的***结构示意图；7 is a schematic diagram of an exploded structure of the sound generating device in FIG. 3;
图8为本发明发声器件第三实施例的一主视剖面结构示意图。FIG. 8 is a schematic cross-sectional structural view of a third embodiment of a sound generating device according to the present invention.
附图标号说明：BRIEF DESCRIPTION OF THE DRAWINGS
标号Label 名称name 标号Label 名称 name 标号Label 名称name
100a100a 发声器件 Sound device 33 导磁轭 Magnetic yoke 83b83b 通道aisle
100b 100b 发声器件Sound device 44 后声腔Rear acoustic cavity 8484 隔断板 Partition board
100c 100c 发声器件Sound device 55 第一侧面 First side 85a85a 填充区Padding area
10a10a 扬声器单元Speaker unit 66 第二侧面 Second side 85b85b 填充区Padding area
1a1a 壳体 case 77 凹部Recess 86a86a 非填充区 Unfilled area
1111 前盖The front cover 20a 20a 减振单元Damping unit 86b86b 非填充区 Unfilled area
1212 框体 framework 8a8a 盒体Box 9a9a 吸音材料Sound-absorbing material
13a13a 内泄漏孔 Internal leak hole 81a81a 外泄漏孔 External leak hole 9b9b 吸音材料Sound-absorbing material
13b13b 内泄漏孔 Internal leak hole 20b 20b 减振单元Damping unit 9c9c 吸音材料Sound-absorbing material
21a21a
振膜 Diaphragm 8b8b 盒体Box 1010 透声隔离件 Acoustic barrier
10b 10b 扬声器单元Speaker unit 81b81b 外泄漏孔 External leak hole 2020 网布 net
1b1b
壳体case 8282 隔板Bulkhead 20c 20c 减振单元Damping unit
21b21b 振膜Diaphragm 83a83a 通道aisle  Zh  Zh
100a，100b，100c：发声器件；10a：扬声器单元；1a：壳体；11：前盖；12：框体；13a：内泄漏孔；13b：内泄漏孔；21a：振膜；10b：扬声器单元；1b：壳体；21b：振膜；3：导磁轭；4：后声腔；5：第一侧面；6：第二侧面；7：凹部；20a：减振单元；8a：盒体；81a：外泄漏孔；20b：减振单元；8b：盒体；81b：外泄漏孔；82：隔板；83a：通道；83b：通道；84：隔断板；85a：填充区；85b：填充区；86a：非填充区；86b：非填充区；9a：吸音材料；9b：吸音材料；9c：吸音材料；10：透声隔离件；20：网布；20c：减振单元；；100a, 100b, 100c: sound generating device; 10a: speaker unit; 1a: housing; 11: front cover; 12: housing; 13a: internal leak hole; 13b: internal leak hole; 21a: diaphragm; 10b: speaker unit 1b: housing; 21b: diaphragm; 3: magnetic yoke; 4: rear acoustic cavity; 5: first side; 6: second side; 7: recess; 20a: vibration damping unit; 8a: box body; 81a : External leakage hole; 20b: vibration damping unit; 8b: box body; 81b: external leakage hole; 82: partition; 83a: channel; 83b: channel; 84: partition plate; 85a: filled area; 85b: filled area; 86a: non-filled area; 86b: non-filled area; 9a: sound-absorbing material; 9b: sound-absorbing material; 9c: sound-absorbing material; 10: sound-permeable spacer; 20: mesh; 20c: vibration damping unit;
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。The realization of the purpose, functional characteristics and advantages of the present invention will be further explained with reference to the embodiments and the drawings.
具体实施方式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的一部分实施例，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。In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时， 则该方向性指示也相应地随之改变。It should be noted that if there is a directional indication (such as up, down, left, right, front, back, etc.) in the embodiment of the present invention, the directional indication is only used to explain in a specific posture (as shown in the drawings) (Shown) the relative positional relationship and movement of each component, etc., if the specific posture changes, the directional indication will change accordingly.
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。In addition, if there are descriptions related to "first", "second", etc. in the embodiment of the present invention, the descriptions of "first", "second", etc. are only used for description purposes, and cannot be understood as instructions or hints Its relative importance or implicitly indicates the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on those that can be realized by a person of ordinary skill in the art. When the combination of technical solutions conflicts or cannot be realized, such a combination of technical solutions should be considered nonexistent It is also not within the protection scope claimed by the present invention.
本发明提出一种发声器件。The invention provides a sound generating device.
在本发明实施例中，如图1、图2、图5及图6所示，该发声器件(100a，100b，100c)包括扬声器单元(10a，10b)及减振单元(20a，20b，20c)；其中，In the embodiment of the present invention, as shown in FIG. 1, FIG. 2, FIG. 5, and FIG. 6, the sound emitting device (100a, 100b, 100c) includes a speaker unit (10a, 10b) and a vibration reduction unit (20a, 20b, 20c). );among them,
扬声器单元(10a，10b)包括壳体(1a，1b)、收容在壳体(1a，1b)内的振动***及磁路***；The speaker unit (10a, 10b) includes a casing (1a, 1b), a vibration system and a magnetic circuit system housed in the casing (1a, 1b);
振动***的振膜(21a，21b)与磁路***的导磁轭3之间形成后声腔4，扬声器单元(10a，10b)上设有与后声腔4连通的内泄漏孔(13a，13b)；The rear acoustic cavity 4 is formed between the diaphragm (21a, 21b) of the vibration system and the magnetic yoke 3 of the magnetic circuit system. The speaker unit (10a, 10b) is provided with an internal leakage hole (13a, 13b) that communicates with the rear acoustic cavity 4. ;
减振单元(20a，20b，20c)包括盒体(8a，8b)及填充在盒体(8a，8b)内腔的吸音材料(9a，9b，9c)；The vibration damping unit (20a, 20b, 20c) includes a box body (8a, 8b) and a sound absorbing material (9a, 9b, 9c) filled in the inner cavity of the box body (8a, 8b);
盒体(8a，8b)的内腔与内泄漏孔(13a，13b)对接连通，盒体(8a，8b)上设有连通盒体(8a，8b)内腔与盒体(8a，8b)外侧的外泄漏孔(81a，81b)。The inner cavity of the box body (8a, 8b) is in butt communication with the inner leakage hole (13a, 13b). The box body (8a, 8b) is provided with a connection between the inner cavity of the box body (8a, 8b) and the box body (8a, 8b). Outer leakage holes (81a, 81b) on the outside.
本实施例中，壳体(1a，1b)与盒体(8a，8b)相似，均用于提供容置空间及支撑作用，例如壳体(1a，1b)可用于支撑振动***及磁路***，壳体(1a，1b)与盒体(8a，8b)既可以一体设置，也可以为分体设置。可以理解的是，内泄漏孔(13a，13b)既可以直接开设在壳体(1a，1b)上，也可以开设在磁路***上，例如导磁轭3；或者壳体(1a，1b)与导磁轭3相配合以形成内泄漏孔(13a，13b)。In this embodiment, the shells (1a, 1b) are similar to the box bodies (8a, 8b), and both are used to provide accommodation and support. For example, the shells (1a, 1b) can be used to support the vibration system and the magnetic circuit system. The housing (1a, 1b) and the box body (8a, 8b) may be provided integrally or separately. It can be understood that the internal leakage holes (13a, 13b) can be directly opened on the casing (1a, 1b) or on the magnetic circuit system, such as the magnetic yoke 3; or the casing (1a, 1b) Cooperate with the yoke 3 to form internal leakage holes (13a, 13b).
振动***及磁路***均可以参考现有的形式，例如振动***的音圈与振动***的振膜(21a，21b)连接，音圈伸入磁路***的磁间隙中，音圈连通变化的电流则受到不同大小的安培力而振动，音圈振动带动振膜(21a，21b)振动，其能量变换方式是电能—机械能—声能。为了调整振动的频率特性， 振动***还可包括配重块。磁路***可以为单磁路***，双磁路***等，磁路***的磁间隙形成在边磁路部分和中心磁路部分之间，一般而言，边磁路部分和中心磁路部分中至少其一包括永磁体。相对应地，导磁轭3既可以为简单的平板状，也可以带侧壁的盆状。Both the vibration system and the magnetic circuit system can refer to the existing form. For example, the voice coil of the vibration system is connected to the diaphragm (21a, 21b) of the vibration system. The voice coil extends into the magnetic gap of the magnetic circuit system. The electric current is vibrated by the ampere force of different magnitudes, and the voice coil vibration drives the diaphragm (21a, 21b) to vibrate. The energy conversion method is electric energy-mechanical energy-acoustic energy. To adjust the frequency characteristics of the vibration, the vibration system may further include a weight. The magnetic circuit system may be a single magnetic circuit system, a dual magnetic circuit system, etc. The magnetic gap of the magnetic circuit system is formed between the side magnetic circuit portion and the center magnetic circuit portion. Generally, the side magnetic circuit portion and the center magnetic circuit portion At least one of them includes a permanent magnet. Correspondingly, the yoke 3 may be a simple flat plate shape or a pot shape with a side wall.
吸音材料(9a，9b，9c)可以为疏松多孔的纤维、泡棉颗粒、沸石、活性炭等能使空气振动能量衰减的材料。此外，为了调节发声，内泄漏孔(13a，13b)和外泄漏孔(81a，81b)处均可以设置网布20。至于内泄漏孔(13a，13b)与外泄露孔的结构形式，其可以为单个的通孔，也可以为多个通孔，例如本发明第一实施例，外泄漏孔(81a，81b)呈格栅状。The sound absorbing materials (9a, 9b, 9c) can be materials such as loose porous fibers, foam particles, zeolite, activated carbon, etc. that can attenuate air vibration energy. In addition, in order to adjust the sound generation, the mesh cloth 20 may be provided at the inner leak holes (13a, 13b) and the outer leak holes (81a, 81b). As for the structural forms of the internal leakage holes (13a, 13b) and the external leakage holes, they may be single through holes or multiple through holes. For example, in the first embodiment of the present invention, the external leakage holes (81a, 81b) are Grid-like.
本发明发声器件(100a，100b，100c)通过设置盒体(8a，8b)与扬声器壳体(1a，1b)的内泄漏孔(13a，13b)对接连通，并在盒体(8a，8b)内填充吸音材料(9a，9b，9c)；此外，盒体(8a，8b)上设置的外泄漏孔(81a，81b)保持与开放后腔连通；当扬声器单元(10a，10b)的振动***振动时，振动产生的气流经内泄漏孔(13a，13b)、盒体(8a，8b)内腔以及外泄露孔进入开放后腔的过程中，通过吸音材料(9a，9b，9c)的吸附作用，空气与吸附材料中的空隙的摩擦作用会造成空气的能量衰减，从而经外泄漏孔(81a，81b)流出后，其振动能量已降低至不至于引起被应用的便携终端产生过大的振动。The sound emitting device (100a, 100b, 100c) of the present invention is provided in butt connection with the internal leakage holes (13a, 13b) of the speaker housing (1a, 1b) by providing the box bodies (8a, 8b), and is connected to the box bodies (8a, 8b). Filled with sound-absorbing materials (9a, 9b, 9c); In addition, external leakage holes (81a, 81b) provided on the box body (8a, 8b) are kept in communication with the open rear cavity; when the vibration system of the speaker unit (10a, 10b) During vibration, the airflow generated by vibration passes through the internal leakage holes (13a, 13b), the inner cavity of the box body (8a, 8b) and the external leakage holes into the open rear cavity, and is absorbed by the sound-absorbing material (9a, 9b, 9c). Effect, the frictional effect of air and the gap in the adsorption material will cause the energy of the air to decay, so that after flowing out through the external leakage holes (81a, 81b), its vibration energy has been reduced so as not to cause the applied portable terminal to generate excessively large vibration.
进一步地，请参照图1、图3及图8，定义振动***的振动方向为厚度方向，盒体(8a，8b)位于扬声器单元(10a，10b)的侧向***。如此，有利于降低发声器件(100a，100b，100c)的厚度，从而使得该实施例的发声器件(100a，100b，100c)可以适应扁平状的安装空间，例如手机的内腔。Further, referring to FIG. 1, FIG. 3 and FIG. 8, the vibration direction of the vibration system is defined as the thickness direction, and the box body (8 a, 8 b) is located at the lateral periphery of the speaker unit (10 a, 10 b). In this way, it is beneficial to reduce the thickness of the sound emitting device (100a, 100b, 100c), so that the sound emitting device (100a, 100b, 100c) of this embodiment can be adapted to a flat installation space, such as the inner cavity of a mobile phone.
进一步地，请参照图1及图2，盒体(8a，8b)设置有两个且分别位于扬声器单元(10a，10b)相对的两侧，壳体(1a，1b)对应两盒体(8a，8b)分别设置有内泄漏孔(13a，13b)。如此，发声器件(100a，100b，100c)的外形形成长条状，避免了在多个尺寸方向占用过多空间。优选地，请再次参照图1、图3及图8，扬声器单元(10a，10b)及盒体(8a，8b)相拼合的主视外轮廓为矩形。Further, please refer to FIG. 1 and FIG. 2, the box body (8a, 8b) is provided with two and are respectively located on opposite sides of the speaker unit (10a, 10b), and the shell (1a, 1b) corresponds to the two box bodies (8a 8b) are provided with internal leakage holes (13a, 13b), respectively. In this way, the outer shape of the sound generating device (100a, 100b, 100c) is formed into a long shape, which avoids occupying too much space in multiple dimensions. Preferably, please refer to FIG. 1, FIG. 3 and FIG. 8 again. The front outline of the speaker unit (10a, 10b) and the box body (8a, 8b) is rectangular.
进一步地，请再次参照图1及图2，在本发明的第一实施例中，为了减少零部件的数量，提高生产效率，壳体(1a，1b)包括前盖11与框体12，前盖 11盖合于框体12并与框体12围合形成收容腔，振动***及磁路***位于收容腔，盒体(8a，8b)与框体12一体设置。Further, please refer to FIGS. 1 and 2 again. In the first embodiment of the present invention, in order to reduce the number of parts and improve production efficiency, the casing (1a, 1b) includes a front cover 11 and a frame 12, The cover 11 covers the frame body 12 and encloses the frame body 12 to form a receiving cavity. The vibration system and the magnetic circuit system are located in the receiving cavity. The box body (8a, 8b) is integrally provided with the frame body 12.
进一步地，请参照图3及图8，在本发明的第二实施例中，为了尽可能的延长声音的传播路径并减少空间占用，盒体(8a，8b)呈弯折延伸的长条状，且沿扬声器单元(10a，10b)侧面的周向布置。Further, please refer to FIG. 3 and FIG. 8. In the second embodiment of the present invention, in order to extend the sound propagation path as much as possible and reduce the space occupation, the box body (8a, 8b) has a long strip shape bent and extended. And arranged along the circumferential direction of the side of the speaker unit (10a, 10b).
进一步地，请参照图3至图8，为了充分利用扬声器单元(10a，10b)的侧向***空间，盒体(8a，8b)设置有多个，多个盒体(8a，8b)首尾相接而环绕扬声器单元(10a，10b)，壳体(1a，1b)对应多个盒体(8a，8b)分别设置有内泄漏孔(13a，13b)。Further, please refer to FIG. 3 to FIG. 8. In order to make full use of the lateral peripheral space of the speaker unit (10a, 10b), the box body (8a, 8b) is provided with a plurality of box bodies (8a, 8b) head and tail. Then, the speaker unit (10a, 10b) is surrounded, and the casing (1a, 1b) is respectively provided with internal leakage holes (13a, 13b) corresponding to the plurality of boxes (8a, 8b).
进一步地，请参照图4、图5及图7，扬声器单元(10a，10b)的侧面包括两相对设置的第一侧面5以及位于两第一侧面5之间两相对设置的第二侧面6；Further, please refer to FIG. 4, FIG. 5 and FIG. 7, the side surfaces of the speaker unit (10 a, 10 b) include two oppositely disposed first side surfaces 5 and two oppositely disposed second side surfaces 6;
扬声器单元(10a，10b)的底面在第一侧面5及第二侧面6的交接处形成凹部7，每一凹部7设有内泄漏孔(13a，13b)。The bottom surface of the speaker unit (10a, 10b) forms a recessed portion 7 at the junction of the first side surface 5 and the second side surface 6, and each recessed portion 7 is provided with an internal leak hole (13a, 13b).
在本实施例中，为了发声器件(100a，100b，100c)的结构更为紧凑或易于利用安装空间，磁路***的边磁路部分例如边磁钢或者导磁轭3的侧壁通常沿着对应的第一侧面5或第二侧面6设置，因此，在凹部7处设置内泄漏孔(13a，13b)更方便连通后腔。In the present embodiment, in order to make the structure of the sound generating device (100a, 100b, 100c) more compact or to easily use the installation space, the side magnetic circuit part of the magnetic circuit system such as the side magnetic steel or the yoke 3 side wall is usually along The corresponding first side surface 5 or the second side surface 6 is provided. Therefore, it is more convenient to provide an internal leakage hole (13a, 13b) at the recess 7 to communicate with the back cavity.
进一步地，盒体(8a，8b)设置有两个，每一盒体(8a，8b)沿相邻的第一侧面5及第二侧面6延伸。在本实施例中，每一盒体(8a，8b)均呈L形，如此，安装后还能利用第一侧面5和、或第二侧面6限位。此外，将盒体(8a，8b)设置为两个数量相对较少，易于装配。Further, two box bodies (8a, 8b) are provided, and each box body (8a, 8b) extends along adjacent first side surfaces 5 and second side surfaces 6. In this embodiment, each box body (8a, 8b) is L-shaped. In this way, after installation, the first side 5 and the second side 6 can also be used to limit the position. In addition, the number of the boxes (8a, 8b) is relatively small, which is easy to assemble.
进一步地，每一盒体(8a，8b)的内腔对应凹部7设有隔板82，隔板82将盒体(8a，8b)的内腔分隔为两个独立的通道(83a，83b)；盒体(8a，8b)对应两通道(83a，83b)分别设有外泄漏孔(81a，81b)，盒体(8a，8b)的每一通道(83a，83b)对应连通一内泄漏孔(13a，13b)。Further, the inner cavity of each box body (8a, 8b) is provided with a partition plate 82 corresponding to the concave portion 7, and the partition plate 82 divides the inner cavity of the box body (8a, 8b) into two independent channels (83a, 83b). ; The box body (8a, 8b) corresponding to the two channels (83a, 83b) are provided with external leakage holes (81a, 81b), each channel (83a, 83b) of the box body (8a, 8b) corresponds to an internal leakage hole (13a, 13b).
在本实施例中，每一通道(83a，83b)均设置有外泄漏孔(81a，81b)如此在与开放后腔连通时，气流的扩散更为均匀，如此，可以达到的音质效果更佳。具体地，在盒体(8a，8b)设置有两个的实施例中，一共可以形成8处外泄漏孔(81a，81b)，该外泄漏孔(81a，81b)沿扬声器单元(10a，10b) 的周向间隔布置。In this embodiment, each channel (83a, 83b) is provided with external leakage holes (81a, 81b) so that when communicating with the open rear cavity, the diffusion of the airflow is more uniform, so that the sound quality effect that can be achieved is better . Specifically, in the embodiment where the box body (8a, 8b) is provided with two, a total of 8 external leakage holes (81a, 81b) can be formed, and the external leakage holes (81a, 81b) are along the speaker unit (10a, 10b). ).
进一步地，请再次参照图8，在本发明的第三实施例中，盒体(8a，8b)的内腔邻近内泄漏孔(13a，13b)处设有隔断板84，隔断板84将盒体(8a，8b)的内腔分隔为填充区(85a，85b)和邻近内泄漏孔(13a，13b)的非填充区(86a，86b)；隔断板84上设有透声孔，减振单元(20a，20b，20c)还包括安装在透声孔处的透声隔离件10，吸音材料(9a，9b，9c)填充在填充区(85a，85b)。Further, please refer to FIG. 8 again. In the third embodiment of the present invention, the inner cavity of the box body (8a, 8b) is provided with a partition plate 84 adjacent to the inner leakage hole (13a, 13b). The inner cavity of the body (8a, 8b) is divided into a filling area (85a, 85b) and a non-filling area (86a, 86b) adjacent to the internal leakage hole (13a, 13b); a sound transmitting hole is provided on the partition plate 84 to reduce vibration The unit (20a, 20b, 20c) further includes a sound-transmitting isolator 10 installed at the sound-transmitting hole, and a sound-absorbing material (9a, 9b, 9c) is filled in the filling area (85a, 85b).
在本实施例中，通过设置非填充区(86a，86b)可以使得在振动的空气进入填充区(85a，85b)之前，可以首先为后声腔4扩容，起到更好的缓冲效果，即在空气进入吸音材料(9a，9b，9c)的间隙之前有个过渡的传递。可以理解的是透声隔离件10起到隔离作用同时要保持透气，作为示例，透声隔离件10可以柔性透气布料，可以为网布。优选地，减振单元(20a，20b，20c)还包括安装在外泄漏孔(81a，81b)处的网布20。In this embodiment, by setting the non-filled areas (86a, 86b), before the vibrating air enters the filled areas (85a, 85b), the rear acoustic cavity 4 can be expanded first to achieve a better buffer effect, that is, in the There is a transitional transmission before the air enters the gap of the sound-absorbing material (9a, 9b, 9c). It can be understood that the sound-transmitting isolator 10 plays a role of isolation while maintaining ventilation. As an example, the sound-transmitting isolator 10 may be a flexible and breathable cloth, and may be a mesh cloth. Preferably, the vibration reduction unit (20a, 20b, 20c) further includes a mesh cloth 20 installed at the external leakage hole (81a, 81b).
进一步地，外泄漏孔(81a，81b)设置在填充区(85a，85b)，且在盒体(8a，8b)自身的延伸方向上，外泄漏孔(81a，81b)远离内泄漏孔(13a，13b)设置。如此，可以用尽量延长空气吸音材料(9a，9b，9c)的作用时间，保证空气的振动能量得到有效衰减。Further, the external leakage holes (81a, 81b) are provided in the filling areas (85a, 85b), and in the extending direction of the box body (8a, 8b) itself, the external leakage holes (81a, 81b) are far away from the internal leakage hole (13a) , 13b) settings. In this way, the action time of the air-absorbing material (9a, 9b, 9c) can be extended as much as possible to ensure that the vibration energy of the air is effectively attenuated.
进一步地，外泄漏孔(81a，81b)开设在盒体(8a，8b)的远离扬声器单元(10a，10b)的一面。如此，有利于利用位于侧向***开放后腔空间，同时延长空气在盒体(8a，8b)内的传播路径。Further, external leakage holes (81a, 81b) are opened on the side of the box body (8a, 8b) away from the speaker unit (10a, 10b). In this way, it is beneficial to use the rear cavity space located on the lateral periphery to open, and at the same time extend the air propagation path in the box body (8a, 8b).
本发明还提出一种便携终端(图未示)，包括外壳，外壳内部具有容置腔，便携终端还包括发声器件(100a，100b，100c)，该发声器件(100a，100b，100c)的具体结构参照上述实施例，由于本便携终端采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。其中，发声器件(100a，100b，100c)安装在容置腔，外壳开设有对应振动***的振膜(21a，21b)设置的声孔，容置腔具有与外泄漏孔(81a，81b)连通的扩容腔。The present invention also provides a portable terminal (not shown), which includes a housing, and the housing has an accommodation cavity therein. The portable terminal further includes a sound generating device (100a, 100b, 100c). The specific details of the sound generating device (100a, 100b, 100c) For the structure, referring to the foregoing embodiments, since the portable terminal adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be described in detail here. The sound generating device (100a, 100b, 100c) is installed in the containing cavity, and the housing is provided with a sound hole corresponding to the diaphragm (21a, 21b) of the vibration system, and the containing cavity has a communication with the external leakage holes (81a, 81b). Expansion cavity.
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围， 凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。The above descriptions are only preferred embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structural transformation made by the description of the present invention and the contents of the drawings, or direct / indirect use under the inventive concept of the present invention All other related technical fields are included in the patent protection scope of the present invention.

Claims (14)

  1. 一种发声器件，其特征在于，包括：A sounding device, comprising:
    扬声器单元及减振单元；其中，Speaker unit and vibration reduction unit;
    所述扬声器单元包括壳体、收容在所述壳体内的振动***及磁路***；The speaker unit includes a housing, a vibration system and a magnetic circuit system housed in the housing;
    所述振动***的振膜与磁路***的导磁轭之间形成后声腔，所述扬声器单元上设有与所述后声腔连通的内泄漏孔；A rear acoustic cavity is formed between the diaphragm of the vibration system and the magnetic yoke of the magnetic circuit system, and the speaker unit is provided with an internal leak hole communicating with the rear acoustic cavity;
    所述减振单元包括盒体及填充在所述盒体内腔的吸音材料；The vibration reduction unit includes a box body and a sound absorbing material filled in the inner cavity of the box body;
    所述盒体的内腔与内泄漏孔对接连通，所述盒体上设有连通所述盒体内腔与所述盒体外侧的外泄漏孔。The inner cavity of the box body is in butt communication with the inner leak hole, and the box body is provided with an external leak hole that connects the inner cavity of the box body and the outer side of the box body.
  2. 如权利要求1所述的发声器件，其特征在于，所述盒***于所述扬声器单元的侧向***。The sound generating device according to claim 1, wherein the box body is located at a lateral periphery of the speaker unit.
  3. 如权利要求2所述的发声器件，其特征在于，所述盒体设置有两个且分别位于所述扬声器单元相对的两侧，所述壳体对应两所述盒体分别设置有所述内泄漏孔。The sound generating device according to claim 2, wherein the box body is provided with two and is located on two opposite sides of the speaker unit, and the housing is provided with the inner portion corresponding to the two box bodies, respectively. Leak hole.
  4. 如权利要求3所述的发声器件，其特征在于，所述扬声器单元及盒体相拼合的主视外轮廓为矩形。The sound generating device according to claim 3, wherein the outer contour of the front view where the speaker unit and the box body are combined is rectangular.
  5. 如权利要求4所述的发声器件，其特征在于，所述壳体包括前盖与框体，所述前盖盖合于所述框体并与所述框体围合形成收容腔，所述振动***及磁路***位于所述收容腔，所述盒体与框体一体设置。The sound emitting device according to claim 4, wherein the housing comprises a front cover and a frame, and the front cover covers the frame and surrounds the frame to form a receiving cavity. The vibration system and the magnetic circuit system are located in the receiving cavity, and the box body and the frame body are integrally provided.
  6. 如权利要求2所述的发声器件，其特征在于，所述盒体呈弯折延伸的长条状，且沿所述扬声器单元侧面的周向布置。The sound emitting device according to claim 2, wherein the box body is in a long shape bent and extended, and is arranged along a circumferential direction of a side surface of the speaker unit.
  7. 如权利要求6所述的发声器件，其特征在于，所述盒体设置有多个，多个所述盒体首尾相接而环绕所述扬声器单元，所述壳体对应多个所述盒体 分别设置有所述内泄漏孔。The sound generating device according to claim 6, wherein a plurality of said box bodies are provided, and a plurality of said box bodies are connected end to end to surround said speaker unit, and said casing corresponds to a plurality of said box bodies The internal leakage holes are respectively provided.
  8. 如权利要求7所述的发声器件，其特征在于，The sound generating device according to claim 7, wherein:
    所述扬声器单元的侧面包括两相对设置的第一侧面以及位于两所述第一侧面之间两相对设置的第二侧面；The side surface of the speaker unit includes two oppositely disposed first sides and two oppositely disposed second sides between the first sides;
    所述扬声器单元的底面在所述第一侧面及第二侧面的交接处形成凹部，每一所述凹部设有所述内泄漏孔。A recessed portion is formed on a bottom surface of the speaker unit at a junction between the first side surface and the second side surface, and each of the recessed portions is provided with the internal leakage hole.
  9. 如权利要求8所述的发声器件，其特征在于，所述盒体设置有两个，每一所述盒体沿相邻的所述第一侧面及第二侧面延伸。The sound generating device according to claim 8, wherein two boxes are provided, and each of the boxes extends along adjacent first and second sides.
  10. 如权利要求9所述的发声器件，其特征在于，The sound generating device according to claim 9, wherein:
    每一所述盒体的内腔对应所述凹部设有隔板，所述隔板将所述盒体的内腔分隔为两个独立的通道；The inner cavity of each box body is provided with a partition plate corresponding to the concave portion, and the partition plate divides the inner cavity of the box body into two independent channels;
    所述盒体对应两所述通道分别设有所述外泄漏孔，所述盒体的每一所述通道对应连通一所述内泄漏孔。The box body is respectively provided with the external leakage holes corresponding to the two channels, and each of the channels of the box body is correspondingly connected with one of the internal leakage holes.
  11. 如权利要求6-10任一项所述的发声器件，其特征在于，The sound emitting device according to any one of claims 6 to 10, wherein
    所述盒体的内腔邻近内泄漏孔处设有隔断板，所述隔断板将所述盒体的内腔分隔为填充区和邻近所述内泄漏孔的非填充区；The inner cavity of the box body is provided with a partition plate adjacent to the internal leakage hole, and the partition plate divides the internal cavity of the box body into a filling area and a non-filling area adjacent to the internal leakage hole;
    所述隔断板上设有透声孔，所述减振单元还包括安装在所述透声孔处的透声隔离件，所述吸音材料填充在所述填充区。The partition board is provided with a sound transmission hole, the vibration reduction unit further includes a sound transmission spacer installed at the sound transmission hole, and the sound absorbing material is filled in the filling area.
  12. 如权利要求11所述的发声器件，其特征在于，所述外泄漏孔设置在所述填充区，且在所述盒体自身的延伸方向上，所述外泄漏孔远离所述内泄漏孔设置。The sound emitting device according to claim 11, wherein the external leak hole is provided in the filling area, and in an extending direction of the box body, the external leak hole is provided far from the internal leak hole .
  13. 如权利要求2-10任一项所述的发声器件，其特征在于，所述外泄漏孔开设在所述盒体的远离所述扬声器单元的一面。The sound emitting device according to any one of claims 2 to 10, wherein the external leakage hole is opened on a side of the box body away from the speaker unit.
  14. 一种便携终端，包括外壳，所述外壳内部具有容置腔，其特征在于，所述便携终端还包括如权利要求1-13任一项所述发声器件，所述发声器件安装在所述容置腔，所述外壳开设有对应所述振动***的振膜设置的声孔，所述容置腔具有与所述外泄漏孔连通的扩容腔。A portable terminal includes a housing, and the housing has an accommodating cavity inside, characterized in that the portable terminal further comprises the sound emitting device according to any one of claims 1-13, and the sound emitting device is installed in the container. The cavity is provided with an acoustic hole provided corresponding to the diaphragm of the vibration system, and the accommodation cavity has an expansion cavity communicating with the external leakage hole.
PCT/CN2018/121126 2018-08-01 2018-12-14 Sound generation apparatus and portable terminal WO2020024523A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810867272.XA CN108650603A (en) 2018-08-01 2018-08-01 Microphone device and portable terminal
CN201810867272.X 2018-08-01

Publications (1)

Publication Number Publication Date
WO2020024523A1 true WO2020024523A1 (en) 2020-02-06

Family

ID=63760643

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/121126 WO2020024523A1 (en) 2018-08-01 2018-12-14 Sound generation apparatus and portable terminal

Country Status (2)

Country Link
CN (1) CN108650603A (en)
WO (1) WO2020024523A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108650603A (en) * 2018-08-01 2018-10-12 歌尔股份有限公司 Microphone device and portable terminal
CN111510830A (en) * 2020-04-16 2020-08-07 歌尔股份有限公司 Sound producing device
CN218734927U (en) * 2022-08-05 2023-03-24 华为技术有限公司 Loudspeaker and electronic equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205283805U (en) * 2015-12-31 2016-06-01 歌尔声学股份有限公司 Loudspeaker module group
CN106973348A (en) * 2017-04-24 2017-07-21 歌尔股份有限公司 Loudspeaker module and electronic equipment
CN207184807U (en) * 2017-09-19 2018-04-03 歌尔科技有限公司 A kind of Microspeaker
CN108650603A (en) * 2018-08-01 2018-10-12 歌尔股份有限公司 Microphone device and portable terminal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205283805U (en) * 2015-12-31 2016-06-01 歌尔声学股份有限公司 Loudspeaker module group
CN106973348A (en) * 2017-04-24 2017-07-21 歌尔股份有限公司 Loudspeaker module and electronic equipment
CN207184807U (en) * 2017-09-19 2018-04-03 歌尔科技有限公司 A kind of Microspeaker
CN108650603A (en) * 2018-08-01 2018-10-12 歌尔股份有限公司 Microphone device and portable terminal

Also Published As

Publication number Publication date
CN108650603A (en) 2018-10-12

Similar Documents

Publication Publication Date Title
WO2021138952A1 (en) Loudspeaker box
CN109040926B (en) Sound producing device and portable terminal
CN111314807A (en) Loudspeaker box
EP1179968B1 (en) Structure around a speaker unit
WO2020024523A1 (en) Sound generation apparatus and portable terminal
CN210093477U (en) Loudspeaker box
JP6313367B2 (en) Long stroke type speaker
WO2020034555A1 (en) Sound-emitting device and electronic device
WO2020024522A1 (en) Sound generation apparatus and portable terminal
WO2021138950A1 (en) Speaker enclosure
WO2021138953A1 (en) Speaker enclosure
CN109714676B (en) Loudspeaker box
WO2020140548A1 (en) Sound generating device and electronic apparatus
WO2018218766A1 (en) Loudspeaker module and electronic device
WO2021000166A1 (en) Speaker module
CN108566597A (en) A kind of sound-producing device
CN114866911A (en) Sound production module and electronic equipment
CN109348380A (en) Sounding device and portable terminal
US20180242061A1 (en) Speaker device
CN111510801B (en) Miniature loudspeaker sound box with ultra-thin and ultra-low frequency structure
CN209964291U (en) Loudspeaker box
WO2022007023A1 (en) Loudspeaker box
CN112422937A (en) Imaging device and sound production control method
CN114567841B (en) Sound producing device and electronic equipment
CN210469655U (en) Sound box and fan with sound box

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18928543

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18928543

Country of ref document: EP

Kind code of ref document: A1