WO2021155847A1 - 显示装置和扬声器 - Google Patents

显示装置和扬声器 Download PDF

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Publication number
WO2021155847A1
WO2021155847A1 PCT/CN2021/075619 CN2021075619W WO2021155847A1 WO 2021155847 A1 WO2021155847 A1 WO 2021155847A1 CN 2021075619 W CN2021075619 W CN 2021075619W WO 2021155847 A1 WO2021155847 A1 WO 2021155847A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
plate
vibrating
speaker
guide
Prior art date
Application number
PCT/CN2021/075619
Other languages
English (en)
French (fr)
Inventor
杨建新
李奎宝
张婵
王英瑞
吕冰雪
黄维财
Original Assignee
海信视像科技股份有限公司
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
Priority claimed from CN202010081865.0A external-priority patent/CN113225501B/zh
Priority claimed from CN202020154382.4U external-priority patent/CN211860538U/zh
Priority claimed from CN202010081875.4A external-priority patent/CN113225503B/zh
Priority claimed from CN202010081873.5A external-priority patent/CN113225502B/zh
Priority claimed from CN202010081864.6A external-priority patent/CN113225652B/zh
Application filed by 海信视像科技股份有限公司 filed Critical 海信视像科技股份有限公司
Publication of WO2021155847A1 publication Critical patent/WO2021155847A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/64Constructional details of receivers, e.g. cabinets or dust covers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers

Definitions

  • This application relates to the field of display technology, and in particular to a display device and a speaker.
  • the LCD TV usually includes a rear case, a display panel, a speaker, etc.; the rear case and the display panel are surrounded by a housing cavity, and the speaker is located in the housing cavity.
  • the speaker includes a vibrating component. Take a cone speaker as an example.
  • the vibrating component includes a voice coil, a cone, an elastic wave and a support.
  • the cone is connected to the end of the voice coil.
  • the support is located at the other end of the voice coil away from the cone.
  • the wave is ring-shaped, and the inner side of the ring-shaped elastic wave is in contact with the outer wall surface of the voice coil, guiding the voice coil to reciprocate along its own axis, and the elastic wave is located between the cone and the support.
  • there is a first avoidance distance between the elastic wave and the cone there is a first avoidance distance between the elastic wave and the cone, and a second avoidance distance between the elastic wave and the support.
  • embodiments of the present application provide a display device and a speaker, the speaker has a small thickness, and the display device has a small thickness.
  • An embodiment of the present application provides a display device, which includes: a display panel, the display panel is used to display images; a rear case, the rear case supports the display panel, the rear case and the display panel enclose A first accommodating cavity; a speaker, the speaker is located in the first accommodating cavity, the speaker includes a guide and a voice coil, the guide is connected with the voice coil; the guide can be in the sound When the coil vibrates, elastic deformation occurs along the axis of the voice coil.
  • the loudspeaker further includes a vibrating member connected to one end of the voice coil in the axial direction; the guide member includes a first guide part that surrounds the voice coil In addition, the first guide portion is connected to an end of the voice coil close to the vibrating member, and the first guide portion extends to a side away from the axis of the voice coil.
  • the speaker further includes a supporting member, the supporting member is attached to the vibrating member, and the voice coil is connected to a side of the supporting member away from the vibrating member;
  • the first guide part is connected with the supporting member.
  • the speaker further includes: a magnetic component, the magnetic component is used to generate a magnetic field, the voice coil vibrates along the axis of the voice coil in the magnetic field; a support, the support It is connected with the magnetic component, and the side of the first guide part facing away from the voice coil is connected with the support.
  • the support includes: a first support part, the first support part is surrounded by the magnetic assembly, and the first support part is connected to the magnetic assembly; and a second support part, The second supporting portion surrounds the first supporting portion, and a side of the first guiding portion away from the voice coil is connected to the second supporting portion.
  • the guide member further includes: a second guide portion that connects the first support portion and the second support portion, and the second guide portion is connected to the first support portion.
  • the guide portions are arranged at intervals along the axial direction of the voice coil.
  • the first guide portion and/or the second guide portion includes a plurality of guide pieces arranged at intervals along the circumferential direction of the voice coil.
  • the guide piece is provided with a reinforcement opening along one or two sides of the voice coil in the circumferential direction, and the reinforcement opening extends along the circumferential direction of the voice coil.
  • the vibrating member is a flat plate-shaped first vibrating plate
  • the voice coil is connected to the first vibrating plate
  • the vibration of the voice coil is transmitted to the first vibrating plate to drive all the vibrations.
  • the first vibration plate vibrates.
  • the first vibration plate includes: a paper core; a first skin covering the side of the paper core facing away from the voice coil; a second skin, the second A skin covers the paper core and is provided with a side surface of the voice coil, and the voice coil is connected to the second skin.
  • the speaker further includes: a first side plate, the first side plate is arranged on the side of the voice coil away from the first vibrating plate, and the first side plate is arranged on the side of the voice coil.
  • the side of the first vibrating plate facing away from the rear shell; an edge bar, the side bar connecting the first vibrating plate and the first side plate, the first vibrating plate, the first side plate and The side bar encloses a second accommodating cavity for accommodating the voice coil, and the side bar is connected with the rear case or the display panel.
  • a first avoidance gap is provided between the first vibration plate and the rear shell.
  • the edge strip is further provided with a sound outlet, and the edge strip includes: a first wall surface, the first wall surface is located in the second accommodating cavity; the second wall surface, the first wall surface Two wall surfaces are arranged opposite to the first wall surface; at least one of the first wall surface and the second wall surface is provided with a strengthening groove.
  • the first vibrating plate and/or the first side plate are provided with a plurality of support rods extending toward each other, and the plurality of support rods are arranged at intervals along the length direction of the side strip, and
  • the edge strip is provided with an insertion hole for inserting and fitting the support rod; the extension length of the support rod is smaller than the distance between the first vibrating plate and the first side plate.
  • the side strip is further provided with a sound outlet, and the sound outlet faces the bottom side of the rear case or the side of the rear case facing away from the display panel.
  • the loudspeaker further includes: a cabinet, the voice coil and the guide are located in the cabinet; the cabinet includes a second side plate, the second side plate is arranged on the The side of the voice coil facing away from the vibrating member; the second side plate is provided with a first avoiding hole, and at least part of the end of the magnetic component facing away from the vibrating member is located in the first avoiding hole.
  • the first escape hole penetrates the second side plate, and the end surface of the magnetic component away from the vibrating element and the side surface of the second side plate away from the vibrating element are located in the same plane.
  • the loudspeaker further includes: an elastic connecting member that connects the first avoiding hole and an end of the magnetic component away from the vibrating member.
  • the speaker further includes: a sub-side plate, the sub-side plate is located at the first avoiding hole, and the sub-side plate is away from the sub-side of the vibrating member and the second side plate The side facing away from the vibrating member is located in the same plane; the sub-side plate is provided with a second avoiding hole, one end of the magnetic component facing away from the vibrating member is connected to the second avoiding hole, and the elastic connecting member is connected The first avoiding hole and the sub-side plate.
  • the display device includes a display panel and a rear case, the display panel is used to display images, the rear case is used to support the display panel, the display panel and the rear case are connected to form a receiving cavity, and the display device It also includes a speaker, which is arranged in the accommodating cavity.
  • the speaker includes a guide, a voice coil, and a vibrating member. When the voice coil vibrates, the vibrating member is driven to vibrate and produce sound; the guide is connected to the voice coil, and the guide can have elastic deformation along the axis of the voice coil. When the voice coil vibrates, it guides the vibrating member. The voice coil moves along its axis.
  • the guide Since the guide is connected to the voice coil, the guide vibrates with the voice coil. At least the guide will not collide with the vibrating member. The distance between the vibrating member and the guide can be reduced, reducing the thickness of the speaker and the thickness of the display device. Then it becomes smaller, which is in line with the development trend of ultra-thin display devices.
  • An embodiment of the present application also provides a speaker, which includes: a voice coil; a vibrating member connected to the voice coil, and the voice coil drives the vibrating member to vibrate; a guide member, the guide member and the When the voice coil is connected, the guide member can be elastically deformed along the direction of the voice coil axis when the voice coil vibrates.
  • An embodiment of the present application further provides a display device, which includes: a display panel, the display panel is used to display images; a rear case, the rear case supports the display panel, the rear case and the display panel surround Into a first accommodating cavity; a speaker, the speaker is located in the first accommodating cavity, the speaker includes an exciter and a first vibration plate, the exciter includes a voice coil, the voice coil and the first A vibrating plate is connected, and the vibration of the voice coil is transmitted to the first vibrating plate to drive the first vibrating plate to vibrate.
  • the speaker further includes: a first side plate, the first side plate is arranged on the side of the voice coil away from the first vibrating plate, and the first side plate is arranged on the side of the voice coil.
  • the side of the first vibrating plate facing away from the rear shell; an edge bar, the side bar connecting the first vibrating plate and the first side plate, the first vibrating plate, the first side plate and The side bar encloses a second accommodating cavity for accommodating the voice coil, and the side bar is connected with the rear shell.
  • a first clearance gap is provided between the first vibrating plate and the rear shell; a second clearance gap is provided between the end of the exciter facing away from the voice coil and the first side plate. Avoid gaps.
  • the edge strip includes: a first wall surface, the first wall surface is located in the second accommodating cavity; a second wall surface, the second wall surface is disposed opposite to the first wall surface; At least one of the first wall surface and the second wall surface is provided with a strengthening groove.
  • the reinforcement groove extends along the length direction of the edge strip.
  • the first vibrating plate and/or the first side plate are provided with a plurality of support rods extending toward each other, and the plurality of support rods are arranged at intervals along the length direction of the side strip, and
  • the edge strip is provided with an insertion hole for inserting and fitting the support rod; the extension length of the support rod is smaller than the distance between the first vibrating plate and the first side plate.
  • the side strip is further provided with a sound outlet, and the sound outlet faces the bottom side of the rear case and/or the side of the rear case facing away from the display panel.
  • the first vibration plate includes: a paper core; a first skin covering the side of the paper core facing away from the voice coil; a second skin, the second A skin covering the paper core is provided on the side surface of the voice coil, and the voice coil is connected to the second skin
  • the edge strip is made of elastic material.
  • the display device includes a display panel and a rear case, the display panel is used for displaying images, the rear case is used to support the display panel, and the display panel and the rear case are connected to form The first accommodating cavity, the display device further includes a speaker, and the speaker is arranged in the first accommodating cavity.
  • the speaker includes an exciter, the exciter includes a voice coil, and the voice coil is connected to the first diaphragm. When the speaker is working, the voice coil drives the first diaphragm to vibrate.
  • the thickness of the vibrating member becomes smaller and the thickness of the speaker becomes smaller, and the thickness of the display device using the speaker becomes smaller, which conforms to the development trend of ultra-thin display devices.
  • An embodiment of the present application also provides a speaker, which includes a first vibration plate; an exciter, the exciter includes a voice coil and a first vibration plate, the voice coil is connected to the first vibration plate, and the voice coil The vibration is transmitted to the first vibration plate to drive the first vibration plate to vibrate.
  • the speaker further includes: a first side plate, the first side plate is arranged on a side of the voice coil away from the first vibration plate; a side bar, the side bar is connected to the The first vibrating plate and the first side plate, the first vibrating plate, the first side plate and the side bar enclose a second accommodating cavity for accommodating the exciter.
  • An embodiment of the present application provides a display device, which includes: a display panel, the display panel is used to display images; a rear case, the rear case supports the display panel, the rear case and the display panel enclose The accommodating cavity; the speaker, the speaker is located in the accommodating cavity; the speaker includes an exciter, a vibrating member and a box, the exciter is located in the box, the exciter is connected to the vibrating member ,
  • the box body includes a second side plate, the second side plate is located on the side of the exciter away from the vibrating member; the second side plate is provided with a first escape hole, and the exciter is away from the One end of the vibrating member is located in the first avoiding hole.
  • the first escape hole penetrates the second side plate, and the end surface of the exciter facing away from the vibrating member and the side surface of the second side plate facing away from the vibrating member are located in the same plane.
  • the box body further includes: an elastic connecting member, which connects the first avoiding hole and an end of the exciter facing away from the vibrating member.
  • the elastic connecting member is ring-shaped, and the ring-shaped elastic connecting member closes the first escape hole.
  • the elastic connecting member is recessed in an arc shape toward one side of the vibrating member.
  • the box body further includes: a sub-vibrating plate, the sub-vibrating plate is located at the first avoiding hole, the side of the sub-vibrating plate facing away from the vibrating member and the second side plate The side facing away from the vibrating member is located in the same plane; the sub-vibrating plate is provided with a second avoiding hole, one end of the exciter facing away from the vibrating member is connected to the second avoiding hole, and the elastic connecting member is connected The first avoiding hole and the sub-vibrating plate.
  • the vibrating member is a flat plate-shaped first vibrating plate
  • the exciter is connected to the first vibrating plate, and the exciter drives the first vibrating plate to vibrate; the first vibration The board and the second side board are connected to form the box body.
  • the first vibration plate includes: a paper core; a first skin covering the side of the paper core facing away from the voice coil; a second skin, the second A skin covers the paper core and is provided with a side surface of the voice coil, and the voice coil is connected to the second skin.
  • the speaker further includes: a side bar connected to the first vibrating plate and the second side plate, and the side bar is connected to the rear case or the display panel.
  • the second side plate is located on a side of the first vibrating plate away from the rear case, and there is a first avoidance gap between the first vibrating plate and the rear case.
  • the edge strip includes: a first wall surface, the first wall surface is located in the box body; a second wall surface, the second wall surface is disposed opposite to the first wall surface; the first wall surface At least one of and the second wall surface is provided with a strengthening groove.
  • the reinforcement groove extends along the length direction of the edge strip.
  • the first vibrating plate and/or the second side plate are provided with a plurality of support rods extending toward each other, and the plurality of support rods are arranged at intervals along the length direction of the side strip, and the The edge strip is provided with an insertion hole for inserting and fitting the support rod; the extension length of the support rod is smaller than the distance between the first vibrating plate and the second side plate.
  • the side strip is provided with a sound outlet, and the sound outlet faces the bottom side of the rear case, or faces the side of the rear case away from the display panel.
  • the edge strip is made of elastic material.
  • the display device includes a display panel and a rear case, the display panel is used for displaying images, the rear case is used to support the display panel, and the display panel and the rear case are connected to form The accommodating cavity, the display device further includes a speaker, and the speaker is arranged in the accommodating cavity.
  • the loudspeaker includes an exciter, a vibrating part and a box body.
  • the box body includes a second side plate and a vibrating part that are arranged oppositely.
  • the exciter is connected to the vibrating part.
  • the second side plate is provided with a first avoiding hole for avoiding the exciter.
  • the end of the exciter facing away from the vibrating member is at least partially located in the first avoiding hole, so that the speaker in the display device provided by the embodiment of the present application can avoid the avoiding gap between the second side plate and the exciter, and the thickness of the speaker is reduced. , The thickness of the display device using the speaker becomes smaller, which is in line with the development trend of ultra-thin display devices.
  • An embodiment of the present application also provides a speaker, which includes: a cabinet connected to a display device, the cabinet includes a second side plate; an exciter, the exciter is located in the cabinet; a vibrating member The second side plate is located on the side of the exciter away from the vibrating member, the second side plate is provided with a first escape hole, and the end of the exciter away from the vibrating member is located on the first side One to avoid the hole.
  • An embodiment of the present application provides a display device, which includes: a display panel, the display panel is used to display images; a rear case, the rear case supports the display panel, the rear case and the display panel enclose A first accommodating cavity; a speaker, the speaker is located in the first accommodating cavity, the speaker includes a voice coil and a first vibration plate; the voice coil is connected to the first vibration plate, the voice coil The vibration is transmitted to the first vibration plate to drive the first vibration plate to vibrate.
  • the first vibration plate includes: a paper core; a first skin covering the side of the paper core facing away from the voice coil; a second skin, the second A skin covers the paper core and is provided with a side surface of the voice coil, and the voice coil is connected to the second skin.
  • the loudspeaker further includes: a connecting piece, the connecting piece is attached to the first diaphragm, the voice coil is connected to the connecting piece, along the axis of the voice coil, The projection of the connecting piece on the first vibration plate covers the projection of the voice coil on the first vibration plate.
  • the first vibrating plate is provided with a thickness reduction hole on a side surface close to the voice coil, and the thickness reduction hole extends to a side away from the voice coil.
  • the connecting piece includes: a connecting portion connected to a side surface of the first vibrating plate close to the voice coil; a second protruding portion, the second protruding portion extends into In the thickness reduction hole, the voice coil is connected to the second protrusion, and at least part of the voice coil extends into the thickness reduction hole.
  • the thickness reduction hole penetrates the first vibrating plate in a direction perpendicular to the first vibrating plate.
  • the side of the second protrusion away from the voice coil and the side of the first vibrating plate away from the voice coil are located in the same plane, and the thickness of the connecting piece is smaller than that of the The thickness of the first vibration plate.
  • the connecting piece is made of metal material.
  • the voice coil includes: a cylinder; a fitting part connected to the cylinder, and the fitting part is mounted on the first vibration plate.
  • the speaker further includes: a first side plate, and the first side plate and the first vibrating plate enclose a second accommodating cavity for accommodating the voice coil.
  • the speaker further includes: a side bar connected to the first side plate and the first vibrating plate, and the side bar is connected to the rear case or the display panel.
  • the side strip is provided with a sound outlet.
  • the display device includes a display panel and a rear case, the display panel is used for displaying images, the rear case is used to support the display panel, and the display panel and the rear case are enclosed in a package. Place the accommodating cavity of the loudspeaker.
  • the speaker includes an exciter.
  • the exciter includes a voice coil and a first vibrating plate.
  • the voice coil is connected to the first vibrating plate. When the speaker is working, the voice coil drives the first vibrating plate to vibrate.
  • the thickness of the vibrating member becomes smaller and the thickness of the speaker becomes smaller.
  • the thickness of the display device using the speaker becomes smaller, which conforms to the development trend of ultra-thin display devices.
  • An embodiment of the present application also provides a speaker, which includes: a voice coil; a first vibration plate, the voice coil is connected to the first vibration plate, and the vibration of the voice coil is transmitted to the first vibration plate to Drive the first vibration plate to vibrate.
  • An embodiment of the present application also provides a display device, which includes: a display panel, the display panel is used to display images; a rear case, the rear case supports the display panel, the rear case and the display panel surround Into a first accommodating cavity; a speaker, the speaker is located in the first accommodating cavity, the speaker includes a voice coil and a first vibration plate and a second vibration plate connected to both ends of the voice coil, so The vibration of the voice coil is transmitted to the first vibration plate and the second vibration plate to drive the first vibration plate and the second vibration plate to vibrate.
  • the speaker includes a magnet and a barrel-shaped first magnetic conductive member
  • the first magnetic conductive member includes a supporting plate and a side wall
  • the supporting plate is provided with a through hole, and the sound One end of the ring passes through the through hole and extends to the side of the supporting plate away from the side wall
  • the magnet is arranged on the part of the supporting plate located in the voice coil.
  • the voice coil includes a first section and a second section that are connected, an end of the first section facing away from the second section is connected to the first vibrating plate, and the second section facing away from One end of the first section is connected to the second vibration plate; one of the end of the first section away from the first vibration plate and the end of the second section away from the second vibration plate is provided There are a plurality of protruding parts, the protruding part passes through the through hole to be connected to another one; the plurality of protruding parts are arranged at intervals along the circumferential direction of the voice coil, and each of the protruding parts is Corresponds to one of the through holes.
  • the loudspeaker includes a first guide member and a second guide member, the first guide member and the second guide member are respectively disposed at both ends of the side wall along the voice coil axis direction
  • the first guide member is provided with a first centering hole
  • the second guide member is provided with a second centering hole
  • the wall surface of one end of the voice coil and the first vibration plate is connected to the first fixed
  • the wall of the center hole is in contact with the wall of the second centering hole.
  • the first vibration plate and the second vibration plate have different resonance modal frequencies.
  • the projection of the second vibration plate on the first vibration plate is located in the first vibration plate.
  • the speaker includes a side bar connecting the first vibrating plate and the second vibrating plate, the side bar, the first vibrating plate, and the second vibrating plate A second accommodating cavity for accommodating the voice coil is enclosed.
  • the edge strip includes: a first fold, the first fold and the first vibrating plate are arranged perpendicularly; a second fold, the second fold and the first fold
  • the edges are arranged vertically, the second flange is connected to a side of the first flange that is close to the second vibrating plate, the second vibrating plate is connected to the second flange, and at least part of the second flange is connected to the The folded edge extends out of the second vibrating plate.
  • the end of the voice coil connected with the first vibrating plate is provided with a first flange, the first flange is arranged perpendicular to the axis of the voice coil, and the first flange is attached to Mounted on the first vibrating plate;
  • the end of the voice coil connected to the second vibrating plate is provided with a second flanging, the second flanging is arranged perpendicular to the axis of the voice coil, the first The second flange is attached to the second vibration plate.
  • the first vibrating plate and the second vibrating plate have the same structure, and both include: a paper core; a first skin, the first skin covering the paper core facing away from the voice coil Side; a second skin, the second skin covers the side of the paper core provided with the voice coil, and the voice coil is connected to the second skin.
  • the display device includes a display panel and a rear case, the display panel is used for displaying images, the rear case is used to support the display panel, and the display panel and the rear case are connected to form The accommodating cavity, the display device further includes a speaker, and the speaker is arranged in the accommodating cavity.
  • the speaker includes a voice coil and a first vibration plate and a second vibration plate connected to both ends of the voice coil.
  • the speaker also includes a magnetic component.
  • the voice coil reciprocates along its own axis under electromagnetic action.
  • the first vibration plate and the second vibration plate The board vibrates with the voice coil at the same time.
  • the sound waves on both sides of the first vibrating plate and the second vibrating plate can be superimposed, and the sound pressure level of the speaker is high.
  • the embodiment of the present application can realize the playback of high sound pressure level audio information through one speaker, and the thickness of the speaker is not increased, that is, it is realized without increasing the thickness of the display device. Improve the sound pressure level of the speaker, and at the same time improve the frequency response uniformity of the speaker in the low frequency range.
  • An embodiment of the present application also provides a speaker, which includes: a voice coil; a first vibrating plate and a second vibrating plate, the first vibrating plate and the second vibrating plate are respectively connected to two ends of the voice coil, The vibration of the voice coil is transmitted to the first vibration plate and the second vibration plate to drive the first vibration plate and the second vibration plate to vibrate.
  • the display device and speakers provided in the embodiments of the present application can solve Other technical issues, other technical features included in the technical solution, and beneficial effects brought about by these technical features will be described in further detail in the specific implementation.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the application.
  • Fig. 2 is a schematic diagram of the structure of the exciter in Fig. 1;
  • Fig. 3 is an exploded schematic diagram of the exciter of Fig. 2;
  • Fig. 4 is another schematic diagram of the structure of the exciter in Fig. 1;
  • Figure 5 is a cross-sectional view of the exciter in Figure 4.
  • Figure 6 is a schematic diagram of the structure of the first vibrating plate
  • FIG. 7 is a schematic structural diagram of another speaker provided by an embodiment of the application.
  • Figure 8 is a cross-sectional view of the speaker in Figure 7;
  • FIG. 9 is a schematic structural diagram of another speaker provided by an embodiment of the application.
  • Figure 10 is a cross-sectional view of the speaker in Figure 9;
  • Fig. 11 is an exploded schematic diagram of the loudspeaker in Fig. 10;
  • Figure 12 is a schematic diagram of the structure of the side strip
  • FIG. 13 is a schematic structural diagram of another speaker provided by an embodiment of the application.
  • Fig. 14 is a schematic diagram of the structure of the exciter in Fig. 13;
  • Fig. 15 is an exploded schematic diagram of the exciter in Fig. 13;
  • FIG. 16 is a schematic diagram of the structure of the first magnetic conductive member in FIG. 13;
  • FIG. 17 is a schematic structural diagram of the second section in FIG. 13;
  • Fig. 18 is a frequency response curve diagram of the loudspeaker in Fig. 13;
  • FIG. 19 is a schematic structural diagram of another speaker provided by an embodiment of the application.
  • FIG. 20 is a schematic structural diagram of another speaker provided by an embodiment of the application.
  • FIG. 21 is a schematic structural diagram of another speaker provided by an embodiment of the application.
  • 33 magnetic component; 331: first magnetically conductive member; 3311: supporting plate; 3312: side wall; 3313: through hole; 332: magnet; 333: second magnetically conductive member;
  • 351 first vibrating plate; 3511: paper core; 3512: first skin; 3513: second skin; 3514: thickness reduction hole;
  • 352a the first side plate
  • 352b the second vibration plate
  • 353 side strip; 3531: first wall; 3532: second wall; 3533: reducing groove; 3534: support rod; 3535: sound outlet; 3536: first hemming; 3537: second hemming;
  • 361 the second side plate; 3611: the first avoiding hole; 362: the elastic connector; 363: the sub-side plate; 3631: the second avoiding hole;
  • Fig. 1 is a schematic structural diagram of a display device provided by an embodiment of the application
  • Fig. 2 is a schematic structural diagram of the exciter in Fig. 1
  • Fig. 3 is an exploded schematic diagram of the exciter in Fig. 2
  • Fig. 4 is another exciter in Fig. 1 Schematic diagram of the structure
  • Fig. 5 is a cross-sectional view of the exciter in Fig. 4.
  • this embodiment provides a display device, which includes: a display panel 10, the display panel 10 is used to display images; a rear case 20, the rear case 20 supports the display panel 10, the rear case 20 and the display
  • the panel 10 encloses a first accommodating cavity; the speaker 30 is located in the first accommodating cavity.
  • the display device provided in this embodiment may be a liquid crystal TV, a plasma TV, a display, and the like.
  • the display device may include a display panel 10, a rear case 20, and an optical component.
  • the rear case 20 supports the display panel 10 and forms a first accommodating cavity, and the optical component is located in the first accommodating cavity.
  • the material of the rear shell 20 may be metal, such as steel, aluminum-magnesium alloy, etc., which has the advantages of high strength and fast heat dissipation.
  • the material of the rear shell 20 may be metal, plastic, glass, or the like.
  • the display device has a thin design, that is, the thickness of the first accommodating cavity is small, and the accommodating devices (including speakers) also need a thin design.
  • the speaker provided in this application can be applied to an LED display device, an OLED display device or other display devices.
  • a heat dissipation port may be provided at a position opposite to the rear case 20 and the speaker 30 to help the speaker 30 to dissipate heat.
  • the shape of the rear case 20 can be a rectangular, circular, or other plate-like structure that is compatible with the display panel 10, or a three-dimensional structure with a curved surface, such as a cylindrical surface or a spherical arc surface, which is not limited in this embodiment. .
  • the rear shell 20 may be an integral structure formed integrally, or may be a split structure formed by connecting a plurality of sub-back shells 20, wherein the sub-back shells 20 may be fixedly connected by welding, screw connection, or the like.
  • the display device may further include a light source assembly, which may be connected to the rear case 20.
  • the light source assembly is usually a point light source, for example, a light emitting diode (LED), and light emitted by the backlight light source can enter In the optical assembly, a point light source is converted into a surface light source.
  • LED light emitting diode
  • the optical assembly may be applied to a display device that requires a backlight source such as a liquid crystal television, where the optical assembly may include a reflective plate, a light guide plate, and an optical film group stacked on the rear housing 20 in sequence.
  • the reflecting plate can be arranged between the rear housing 20 and the light guide plate, and can reflect the light entering the light guide plate, change the light path of the light, and uniformly emit the light from the light exit surface of the light guide plate, thereby improving the light output efficiency of the light guide plate.
  • the reflective plate and the light guide plate can be fixedly connected by adhesives such as adhesive tapes.
  • the optical film group is arranged on the side of the light guide plate away from the rear housing 20, and is used to further refract and scatter the light emitted from the light exit surface of the light guide plate, so that the optical components can form a more uniform and higher-brightness surface light source.
  • the optical film material group may be one or more of diffuser films, prism films, etc., or may be other optical film material groups commonly used by those skilled in the art such as beam splitters, polarizers, etc., which will not be repeated here.
  • the display panel 10 is arranged on the optical film group.
  • the display panel 10 is generally a display panel 10 that does not emit light by itself.
  • the light emitted by the light source assembly is irradiated onto the display panel 10 through the optical assembly, and then the display panel 10 is modulated to form A variety of different patterns and pictures to complete the display of the image.
  • the display panel 10 may be a structure well known to those skilled in the art.
  • the display device may further include a speaker 30 for playing sound.
  • the number of speakers 30 may be one or more, which is not limited in this embodiment.
  • the loudspeaker 30 may include an exciter and a box housing the exciter. The box protects the exciter, and the box may be connected to the rear shell 20. The size and shape of the box and the position of the exciter on the vibrating part can be set as required.
  • the speaker 30 may include an exciter, the exciter includes a vibration component, the vibration component includes a guide 31 and a voice coil 34, and the guide 31 is connected to the voice coil 34;
  • the voice coil 34 elastically deforms in the axial direction.
  • guides such as elastic waves are usually arranged in the middle of the voice coil 34 and are in contact with the outer wall surface of the voice coil 34.
  • the centering hole in the middle of the elastic waves guides the voice coil 34 to move, and the voice coil 34 is along its own axis.
  • the voice coil 34 moves relative to the elastic wave.
  • the length is large, and the thickness of the speaker 30 is large, so that the thickness of the display device is large.
  • the guide 31 is directly connected to the voice coil 34.
  • the voice coil 34 vibrates
  • the guide 31 follows the voice coil 34 and undergoes elastic deformation along the axis of the voice coil 34.
  • a collision occurs, that is, when the gap between the guide 31 and the support member or the magnetic component remains the same as the gap in the related art, at least the gap between the guide 31 and the vibrating member is reduced, and the thickness of the speaker 30 becomes smaller. The thickness of the device becomes smaller.
  • the guide 31 may include a number of connected guide blocks. Two adjacent guide blocks can slide relative to each other along the axis of the voice coil 34.
  • the voice coil 34 can drive a guide block connected to it to slide along the axis of the voice coil 34.
  • the guide block can drive the guide block adjacent to itself to slide, and so on to achieve the guiding effect of the guide 31 on the voice coil 34.
  • no extrusion along the radial direction of the voice coil 34 can occur between two adjacent guide blocks, which prevents the voice coil 34 from deviating in the radial direction of itself and avoids noise.
  • the speaker 30 further includes a vibrating member, which is connected to one end of the voice coil 34 in the axial direction;
  • the guide member 31 includes a first guide portion 311 that surrounds the voice coil 34, and
  • the guide portion 311 is connected to an end of the voice coil 34 close to the vibrating member, and the first guide portion 311 extends to a side away from the axis of the voice coil 34.
  • this embodiment does not limit the structure, type, etc. of the vibrating element, and may be plate-shaped or cone-shaped.
  • the first guide portion 311 is connected to the end of the voice coil 34 close to the vibrating member, so that in the radial direction of the voice coil 34, the first guide portion 311 and the voice coil 34 are arranged side by side. In the axial direction of the voice coil 34, there is no need to provide a first guide.
  • the avoidance gap between the part 311 and the vibrating member that is, there is only one avoidance gap between the first guide part 311 and the magnetic component in the axial direction of the voice coil 34, the thickness of the speaker 30 along the axial direction of the voice coil 34 becomes smaller, and the display device The thickness becomes smaller.
  • the avoidance gap may be 0.7mm-2mm.
  • the first guide portion 311 extends to a side away from the axis of the voice coil 34 into a sheet-like or similar sheet-like structure.
  • the first guide portion 311 may be an elastic wave with a wave-bending structure in the related art.
  • the centering hole of the elastic wave is connected with the outer wall surface of the voice coil 34.
  • the first guide portion 311 may also be in the shape of an annular sheet.
  • the first guide portion 311 in the shape of an annular sheet has a centering hole, which is connected to the outer wall surface of the voice coil 34. The connection prevents the first guide portion 311 from being deformed in the radial direction of the voice coil 34.
  • the plane where the first guide portion 311 is located may be set perpendicular to the axis of the voice coil 34, or may be set at an acute or obtuse angle to the axis of the voice coil 34.
  • the elastic force of the first guide portion 311 may have a first component force along the axis of the voice coil 34 and a second force along the radial direction of the voice coil 34.
  • the first force component can guide the voice coil 34 to move back and forth along its own axis.
  • the second force component can be toward the axis of the voice coil 34 or away from the axis of the voice coil 34.
  • the second component force can prevent the voice coil 34 from moving radially.
  • the voice coil 34 has a tendency to move to any radial position.
  • the first guiding portion 311 has a tendency to squeeze at the position corresponding to the position, and the position opposite to the arbitrary radial position on the first guiding portion 311 has a tendency to stretch, that is, along the voice coil 34 In the circumferential direction, the first guide portion 311 itself can avoid radial deformation and prevent the voice coil 34 from moving radially.
  • the material of the first guide portion 311 may be a material used in the related art for elastic waves, such as acrylonitrile-butadiene-styrene copolymer (Acrylonitrile Butadiene Styrene, ABS for short). limit.
  • the speaker 30 further includes a supporting member 37, the supporting member 37 is attached to the vibrating member, and the voice coil 34 is connected to the side of the supporting member 37 away from the vibrating member.
  • the supporting member 37 can increase the connection area between the voice coil 34 and the vibrating member, and improve the stability of the connection between the voice coil 34 and the vibrating member.
  • the supporting member 37 may have different shapes.
  • the vibrating member is a thin-walled cylindrical cone
  • the supporting member 37 may be a supporting cone in the related art. Annular groove, reliable connection.
  • the first guide portion 311 may be connected with the supporting member 37.
  • the supporting member 37 may be integrally formed with the voice coil 34, and the supporting member 37 is connected to the first guide portion 311 as a flanging structure.
  • the supporting member 37 may be independent of the voice coil 34 and the first guide portion 311, and be provided as a connecting member between the voice coil 34 and the vibrating member.
  • the supporting member 37 can also be integrally formed with the first guide portion 311.
  • the voice coil 34 vibrates, and when the voice coil 34 vibrates, the first guide portion 311 is elastically deformed. Since the first guide portion 311 can only be elastically deformed along the axis of the voice coil 34, it can guide the sound connected to it. The coil 34 vibrates along the axis of the voice coil 34 to prevent the voice coil 34 from deviating radially.
  • the exciter further includes a magnetic component 33 for generating a magnetic field, and the voice coil 34 vibrates along the axis direction of the voice coil 34 in the magnetic field.
  • the magnetic component 33 is located at the end of the voice coil 34 away from the vibrating member.
  • the magnetic assembly 33 may include a first magnetically conductive member 331, a magnet 332, and a second magnetically conductive member 333, wherein the first magnetically conductive member 331 and the second magnetically conductive member 333 may be U iron and China, which are well known to those skilled in the art.
  • the U iron can be in a cylindrical shape with an opening, and the magnet is arranged on the bottom surface of the U iron; the washer is arranged on the magnet, and there is a gap between the magnet and the washer and the inner wall surface of the U iron, which is called a magnetic air gap.
  • the magnetic component 33 is used to provide a stable magnetic field in the magnetic air gap. This embodiment does not limit the structure and material of the U iron, magnet, and washer.
  • the exciter may further include a support 32, the support 32 is connected to the magnetic assembly 33, and the side of the first guide portion 311 facing away from the voice coil 34 is connected to the support 32.
  • the material of the support member 32 can be steel, aluminum, zinc, plastic, etc., and the shape can be a plate shape, or a basin shape well known to those skilled in the art, which is not limited in this embodiment.
  • the supporting member 32 is connected to the magnetic component 33 and is located at the end of the voice coil 34 away from the vibrating member. Understandably, the end of the exciter facing away from the vibrating member, the end of the magnetic component facing away from the vibrating member, and the end of the supporting member facing away from the vibrating member can be regarded as It is the same concept.
  • the supporting member 32 may be a split structure, and the supporting member 32 includes: a first supporting portion 321, the first supporting portion 321 is surrounded by the magnetic component 33, and the first supporting portion 321 is connected to the magnetic component 33;
  • the second supporting portion 322 surrounds the first supporting portion 321, and the side of the first guiding portion 311 facing away from the voice coil 34 is connected to the second supporting portion 322.
  • the second support portion 322 and the first support portion 321 are spaced apart, and the second support portion 322 is connected to the first guide portion 311.
  • the voice coil 34 vibrates
  • the first guide portion 311 follows the voice coil 34 and undergoes elastic deformation.
  • the second support portion 322 can correspondingly move along the axis of the voice coil 34, which improves the elastic deformation ability of the first guide portion 311.
  • the voice coil has only one centering guide point for the elastic wave.
  • the guide 31 further includes: a second guide portion 312 connected to the second guide portion 312 A supporting portion 321 and a second supporting portion 322, and the second guiding portion 312 and the first guiding portion 311 are spaced apart along the axial direction of the voice coil 34.
  • the structure and working principle of the second guide portion 312 may be the same as the first guide portion 311, and will not be repeated in this embodiment.
  • the second guide portion 312 can also be elastically deformed along the axial direction of the voice coil 34, so that the voice coil 34 can have two centering guide points, the first guide portion 311 and the second guide portion 312. If the voice coil 34 is to move radially, the voice coil 34 needs to drive the second support portion 322 to move, and it needs to simultaneously squeeze a certain point in the first guide portion 311 and the second guide portion 312, and the voice coil 34 needs to move radially. As the difficulty increases, the radial movement of the voice coil 34 is further avoided, and the loudspeaker 30 is prevented from making noise.
  • the first guide portion 311 and/or the second guide portion 312 may include a plurality of guide pieces 313 arranged at intervals along the circumferential direction of the voice coil 34. It is helpful for the first guide portion 311 and/or the second guide portion 312 to be elastically deformed, and the power consumption of the speaker 30 is reduced.
  • the guide piece 313 can be twisted and arranged with respect to the axis of the voice coil 34 similar to a fan blade.
  • the guide piece 313 can be bent and deformed along the axis of the voice coil 34 without compressing and deforming itself, preventing the voice coil 34 from being radially along itself. To move, as long as the radial rigidity of the guide piece 313 is greater than its axial rigidity.
  • the guide piece 313 may also be in the shape of a flat plate. Wherein, in order to prevent the voice coil 34 from moving radially, the guide piece 313 corresponding to the second guide portion 312 may be arranged perpendicular to the axis of the voice coil 34.
  • the guide piece 313 can be deformed on the axis of the end connected to the first support portion 321 as a fulcrum, and the end connected to the second support portion 322 is bent, which helps the voice coil 34 move along its own axis; while the guide piece 313 does not Compression deformation occurs in the radial direction, which helps prevent the voice coil 34 from moving radially.
  • the guide piece 313 corresponding to the first guide portion 311 may also be arranged perpendicular to the axis of the voice coil 34. In some embodiments, to facilitate the movement of the voice coil 34 in the direction of its own axis, it corresponds to the first guide portion 311
  • the guide piece 313 is arranged obliquely, and the inclination angle of the guide piece 313 may be related to the extension height of the second support portion 322 along the axis direction of the voice coil 34.
  • the supporting member 37, the first guiding portion 311, the first supporting portion 321, the second supporting portion 322, and the second guiding portion 312 may be integrally formed, and the material may be ABS, polyamide (Polyamide, for short). PA) and ABS copolymer, polycarbonate (Polycarbonate, PC for short) and ABS copolymer, high impact polystyrene (HIPS), etc.
  • the guide piece 313 may have a notch so that the guide piece 313 is easy to be elastically deformed.
  • the guide piece 313 is provided with a reinforcement opening 314 along one or two lateral sides of the voice coil 34 in the circumferential direction, and the reinforcement opening 314 extends along the circumferential direction of the voice coil 34.
  • the reinforcement opening 314 may be provided only on the guide piece 313 corresponding to the first guide part 311 or the second guide part 312, or at the same time the first guide part 311 and the second guide part 312 corresponding to the guide
  • the sheet 313 is provided with a reinforcement opening 314.
  • the reinforcement openings 314 may be provided on part or all of the guide pieces 313 corresponding to the first guide portion 311; the reinforcement openings 314 may be provided on some or all of the guide pieces 313 corresponding to the second guide portion 312.
  • the vibrating member may be a thin-walled cylindrical cone in the related art.
  • the vibrating member in order to reduce the thickness of the speaker 30, the vibrating member may be a flat first vibrating plate 351, a voice coil 34 and a first vibrating plate 351 When connected, the vibration of the voice coil 34 is transmitted to the first vibrating plate 351 to drive the first vibrating plate 351 to vibrate.
  • the structure of the exciter is not limited in this embodiment.
  • the end surface of the voice coil 34 and the first vibrating plate 351 can be fixed by adhesive bonding; the end of the voice coil 34 close to the first vibrating plate 351 can be provided with a flanging structure, and the flanging structure is attached to the first vibrating plate 351
  • the setting increases the connection area between the voice coil 34 and the first vibration plate 351, and the connection is reliable.
  • the flanging structure may be the above-mentioned supporting member 37, or the flanging structure may also be attached to the side of the supporting member 37 away from the vibrating member.
  • the other end of the voice coil 34 is surrounded by the magnet 332 and the second magnetic conductive member 333.
  • the end of the voice coil 34 away from the first vibrating plate 351 has a first distance from the first magnetic conductive member 331, and the inner wall surface of the voice coil 34
  • the sizes of the first, second and third distances are based on Actually need to be set.
  • the vibrating member of the speaker 30 adopts a plate-like structure, and the thickness of the vibrating member along the axis of the voice coil 34 is smaller than that of the cone in the related art, which makes the thickness of the speaker 30 smaller.
  • the thickness of the display device is reduced, and the first vibrating plate 351 as a part of the cabinet can also avoid the avoidance distance between the vibrating member and the cabinet in the speaker 30.
  • the thickness of the speaker 30 is small, which conforms to the development trend of ultra-thin display devices. .
  • modal frequency formula of plate vibration is as follows:
  • a, b are the length and width of the plate
  • is the density of the plate
  • h is the thickness of the plate
  • D is the bending strength of the plate.
  • the weight of the exciter is greater than the weight of the first vibrating plate 351, which can be understood as adding a vibrating mass to the first vibrating plate 351, which is equivalent to increasing the equivalent density ⁇ of the first vibrating plate 351, It can be seen from the formula (1) that when ⁇ increases, the first-order modal frequency f 11 decreases, which helps the speaker 30 to excite low-frequency sounds with better sound effects. That is, in this embodiment, without increasing the mass of the first vibrating plate 351, the equivalent mass of the vibrating system is increased, and the first-order modal frequency f 11 is reduced without reducing the acoustic radiation efficiency.
  • the speaker 30 in the display device provided in the embodiment can emit a low frequency sound of 100 Hz, which meets the low frequency sound design requirements of display devices such as liquid crystal televisions.
  • the phase difference of the sound waves radiated by the cone speaker on the side of the vibrating member and the side away from the vibrating member is 180°.
  • the mutual interference of the sound waves on both sides weakens the sound waves and the low-frequency performance of the exciter decreases.
  • the vibrating member of the speaker 30 is in the shape of a flat panel, and the speaker 30 is evolved into a flat panel speaker. Based on the characteristics of flat panel sound wave radiation, the sound waves radiated from both sides of the panel can be superimposed for use.
  • the sound pressure level of the speaker 30 is high and there is no sound. The problem of short circuit.
  • the mass of the first vibrating plate 351 should be small; at the same time, in order to facilitate the excitation of lower-frequency low-order resonance modes and reduce the weight of the speaker 30, the first vibrating plate 351
  • the thickness of 351 should be small.
  • the rigidity of the first vibration plate 351 needs to be strengthened to prevent the speaker 30 from being deformed.
  • the first vibrating plate 351 may be a paper core honeycomb panel with a thickness of 1 mm-1.5 mm, which is small in weight and high in strength.
  • FIG. 6 is a schematic structural diagram of the first vibration plate. Please refer to FIG. 6.
  • the first vibration plate 351 includes: a paper core 3511; a first skin 3512, and the first skin 3512 covers the paper core 3511
  • the side surface of the ring 34; the second skin 3513, the second skin 3513 covers the side of the paper core 3511 where the voice coil 34 is provided, and the voice coil 34 is connected to the second skin 3513.
  • FIG. 7 is a schematic structural diagram of another speaker provided by an embodiment of the application
  • FIG. 8 is a cross-sectional view of the speaker in FIG. 7
  • FIG. 9 is a schematic structural diagram of another speaker provided by an embodiment of the application
  • FIG. Cross-sectional view FIG. 11 is an exploded schematic diagram of the speaker in FIG. 10, and
  • FIG. 12 is a schematic structural diagram of the side bar.
  • the speaker 30 further includes a connecting piece 38, the connecting piece 38 is attached to the first vibrating plate 351, and the voice coil 34 is connected to the connecting piece 38.
  • this embodiment does not limit the structure of the exciter, and this embodiment uses the exciter structure in FIGS. 7 to 12 as an example for description.
  • the connecting piece 38 is mounted in a sheet shape on the side of the first vibrating plate 351 where the voice coil 34 is arranged, or the connecting piece 38 can be mounted on the second skin 3513, and the connecting piece 38 and the second skin 3513 have a large connection area.
  • the voice coil 34 vibrates, the vibration received by the second skin 3513 becomes smaller, which can prevent the second skin 3513 from separating from the paper core 3511 and prevent the second skin 3513 from cracking.
  • the entire side of the connecting piece 38 close to the first vibrating plate 351 may be provided with an adhesive member for a firm connection.
  • the entire side surface of the connecting piece 38 close to the first vibrating plate 351 may be coated with adhesives such as optical glue for connecting with the first vibrating plate 351, and the connection is reliable.
  • connection area between the voice coil 34 and the first diaphragm 351 is the end surface of the voice coil 34, and the connection area is small.
  • the voice coil 34 reciprocates, and the first vibration plate 351 may break during the reciprocating vibration of the voice coil 34.
  • the projection of the connecting piece 38 on the first vibrating plate 351 covers the projection of the voice coil 34 on the first vibrating plate 351, and the connection between the connecting piece 38 and the first vibrating plate 351
  • the large connection area can reduce the possibility of destructive damage to the first vibration plate 351 and increase the service life of the speaker 30 and the display device.
  • the connecting piece 38 may be annular, the width of the connecting piece 38 in the radial direction of the voice coil 34 is greater than the thickness of the voice coil 34, and the connecting area between the connecting piece 38 and the first vibrating plate 351 is large.
  • the side of the first vibrating plate 351 close to the voice coil 34 is provided with a thickness reduction hole 3514, the thickness reduction hole 3514 extends to the side away from the voice coil 34, and the thickness of the thickness reduction hole 3514 is less than or equal to the first vibration plate 351 thickness.
  • the connecting piece 38 includes: a connecting portion 381 connected to the side surface of the first vibrating plate 351 close to the voice coil 34; a second protruding portion 382, the second protruding portion 382 extending into the thickness reducing hole 3514.
  • the voice coil 34 is connected to the second protrusion 382, and at least part of the voice coil 34 extends into the thickness-reducing hole 3514.
  • the voice coil 34 is connected to the second protrusion 382, and the second protrusion 382 extends into the thickness reduction hole 3514, so that the end of the voice coil 34 connected with the second protrusion 382 can extend into the thickness reduction hole 3514
  • the thickness of the speaker 30 can be reduced.
  • the specific thickness of the reduction is the sum of the thickness of the voice coil 34 extending into the thickness-reducing hole 3514 and the thickness of the connecting sheet 38.
  • the thickness of the display device using the speaker 30 can also be reduced. The development trend of ultra-thin display devices.
  • the second protruding portion 382 is attached to reduce the thickness.
  • the inner surface of the hole 3514 may be bonded by an adhesive, for example.
  • the first vibrating plate 351 usually adopts a paper core honeycomb panel, the holes are directly opened on the paper core honeycomb panel, which easily causes the strength of the hole to decrease.
  • the second protrusion 382 is attached to the thickness reduction hole 3514. On the inner surface, the strength at the thickness reduction hole 3514 can also be improved.
  • the thickness reduction hole 3514 may penetrate the first vibrating plate 351 in a direction perpendicular to the first vibrating plate 351, which is easy to process and manufacture.
  • the second protrusion 382 may be located in the thickness reduction hole 3514.
  • the side of the second protrusion 382 away from the voice coil 34 and the side of the first vibration plate 351 away from the voice coil 34 are located in the same plane.
  • the thickness of the connecting piece 38 is smaller than the thickness of the first vibration plate 351. The height of the portion of the voice coil 34 extending into the thickness reducing hole 3514 is further increased, and the thickness of the speaker 30 is further reduced.
  • the connecting piece 38 is made of metal material, which has high strength and is easy to dissipate heat from the exciter, and prevents the speaker 30 from overheating and malfunctioning.
  • the material of the connecting piece 38 may be aluminum.
  • the end surface of the voice coil 34 may be directly connected to the connecting piece 38 or the first vibrating plate 351, for example, pasted and fixed by an adhesive such as tape.
  • the voice coil 34 includes: a cylinder 347; a fitting portion 348, the fitting portion 348 is connected to the cylinder 347, and the fitting portion 348 is attached to the first vibrating plate 351.
  • the fitting portion 348 may be annular and continuously arranged along the axis of the voice coil 34, or may be a plurality of folding pieces intermittently arranged along the circumferential direction of the voice coil 34.
  • the fitting portion 348 can extend to one side of the axis of the voice coil 34 or to the side away from the axis of the voice coil 34.
  • the fitting portion 348 is mounted on the connecting piece 38 in a plate shape with a large connecting area and a stable connection.
  • the first vibrating plate 351 may be used as a part of the cabinet of the speaker 30.
  • the speaker 30 further includes a first side plate 352a, and the first side plate 352a and the first vibrating plate 351 enclose a second accommodating cavity for accommodating the voice coil 34.
  • the first side plate 352 a is disposed on the side of the voice coil 34 away from the first vibrating plate 351, and the first side plate 352 a is disposed on the side of the first vibrating plate 351 away from the rear case 20.
  • the first side plate 352a can be arranged at an angle or parallel to the first vibration plate 351.
  • the first side plate 352a and the first vibration plate 351 are parallel as an example for description.
  • the speaker 30 has evolved into a flat panel speaker.
  • the flat panel speaker also has the feature that the sound waves on both sides of the first vibrating plate 351 have no inverse phase, that is, the sound waves on both sides of the first vibrating plate 351 can be superimposed and used without the problem of acoustic short circuit.
  • a first avoidance gap is provided between the first vibrating plate 351 and the rear housing 20, and the end of the support member 32 away from the voice coil 34 and the first
  • a second avoidance gap is provided between the side plates 352a.
  • the size of the first avoidance gap and the second avoidance gap can be set according to actual needs.
  • the first avoidance gap and the second avoidance gap can be selected between 0.7 mm and 2 mm, so as to reduce the thickness of the speaker 30.
  • the thickness of the exciter may be 6mm-9mm
  • the thickness of the speaker 30 may be the sum of the thickness of the exciter, the second avoidance gap, and the thickness of the first side plate 352a, that is, in the display device provided in this embodiment
  • the thickness of the speaker 30 may be 7.7 mm-12 mm. Compared with the speaker 30 with a thickness of 30 mm-40 mm in the related art, the thickness of the speaker 30 provided in this embodiment is reduced.
  • the speaker 30 further includes a side bar 353, which connects the first vibrating plate 351 and the first side plate 352a, and the first vibrating plate 351, the first side plate 352a and the side bar 353 are enclosed to accommodate the sound.
  • the side strip 353 is connected to the rear case 20 or the display panel 10, and the side strip 353 can be integrally formed with any one of the first side plate 352a and the first vibrating plate 351.
  • the first-order modal frequency f 11 of the first vibrating plate 351 can be further reduced by reducing the bending strength of the first vibrating plate 351.
  • the edge strip 353 includes: a first wall surface 3531, the first wall surface 3531 is located in the second accommodating cavity; a second wall surface 3532, the second wall surface 3532 is disposed opposite to the first wall surface 3531; At least one of them is provided with a strengthening groove 3533.
  • the reinforcement groove 3533 can make the side strip 353 elastically deform.
  • the first vibrating plate 351 can vibrate relative to the first side plate 352a, which is equivalent to reducing the bending strength D of the first vibrating plate 351, thereby Reducing the first-order modal frequency f 11 of the first vibrating plate 351 helps the speaker 30 to excite low-frequency sounds with better sound effects.
  • the number of the strengthening grooves 3533 may be multiple, and the plurality of strengthening grooves 3533 may be arranged at intervals along the length direction of the side strip 353.
  • the reinforcement groove 3533 can be provided on the first wall surface 3531 or the second wall surface 3532, or on the first wall surface 3531 and the second wall surface 3532 at the same time.
  • the strengthening groove 3533 on the first wall surface 3531 and the strengthening groove 3533 on the second wall surface 3532 are not connected.
  • the strengthening groove 3533 on the first wall surface 3531 and the strengthening groove 3533 on the second wall surface 3532 are not connected.
  • the grooves 3533 may be staggered in the direction perpendicular to the first vibration plate 351.
  • the reinforcement groove 3533 may be strip-shaped and extend along the length of the side strip 353.
  • the length of the reinforcement groove 3533 may be less than the length of the side strip 353, or it may penetrate through the side strip 353 at the sound outlet 3535. End face.
  • One strip-shaped reinforcement groove 3533 can be provided on the first wall surface 3531, and two strip-shaped reinforcement grooves 3533 can be provided on the second wall surface 3532. Stagger the settings.
  • the first vibrating plate 351 vibrates. If the side bar 353 is deformed, the end of the exciter facing away from the first vibrating plate 351 may come into contact with the first side plate 352a, and the exciter may generate noise.
  • the first vibrating plate 351 and/or the first side plate 352a are provided with a plurality of support rods 3534 extending toward each other. An insertion hole for inserting and fitting the support rod 3534; the extension length of the support rod 3534 is smaller than the distance between the first vibrating plate 351 and the first side plate 352a.
  • the support rod 3534 Since the extension length of the support rod 3534 is less than the distance between the first vibration plate 351 and the first side plate 352a, that is, the extension length of the support rod 3534 in the direction perpendicular to the first vibration plate 351 is less than the thickness of the side strip 353, the support rod 3534 The free end does not pass through the side bar 353, which can prevent rigid contact between the first vibrating plate 351 and the supporting rod 3534 or the supporting rod 3534 on the first vibrating plate 351 and the first side plate 352a, and prevent the speaker 30 from generating noise.
  • the difference between the extension length of the support rod 3534 in the direction perpendicular to the first vibrating plate 351 and the thickness of the side strip 353 may be 1 mm to 3 mm. In this way, the edge strip 353 can be prevented from being deformed, and the first vibrating plate 351 can be supported by the elastic edge.
  • the side strip 353 is further provided with a sound outlet 3535, and the sound outlet 3535 may be located on the top, side, bottom side of the rear shell 20 or on the rear shell 20.
  • the sound outlet 3535 faces the bottom side of the rear case 20 or the side of the rear case 20 facing away from the display panel 10.
  • the first vibration plate 351 radiates sound waves to the side of the first side plate 352a and the side of the rear case 20 at the same time, the sound waves radiated from the bottom side of the rear case 20 and the rear case 20 can be superimposed for use, and there is no acoustic short circuit. The problem.
  • the length of the sound outlet 3535 is set according to the shape of the first vibrating plate 351 and the first side plate 352a.
  • the shape of the sound outlet 3535 is It can be arc-shaped.
  • the first vibrating plate 351 and the first side plate 352a may both be rectangular, and the sound outlet 3535 may be located at one long side or short side of the first vibrating plate 351 and the first side plate 352a.
  • the sound outlet 3535 can also be provided A plurality of supporting side bars 353, the plurality of supporting side bars 353 are connected to the first vibrating plate 351 and the first side plate 352a, the plurality of supporting side bars 353 are arranged at intervals on the side where the sound outlet 3535 is located, and the plurality of supporting side bars
  • a strengthening groove 3533 and a support rod 3534 can also be provided on the 353, which is not limited in this embodiment.
  • the edge strip 353 is made of elastic material.
  • the edge strips 353 of elastic material can soften the supporting edge of the first vibration plate 351 and reduce the elastic coefficient of the first vibration plate 351, that is, reduce the bending strength D of the first vibration plate 351, thereby reducing the first vibration plate 351.
  • the first-order modal frequency f 11 helps the speaker 30 to excite low-frequency sounds with better sound effects.
  • the material of the side strip 353 may be silica gel, rubber, etc., which is not limited in this embodiment.
  • FIG. 13 is a schematic structural diagram of another speaker provided by an embodiment of the application
  • FIG. 14 is a schematic structural diagram of the exciter in FIG. 13
  • FIG. 15 is an exploded schematic diagram of the exciter in FIG. 13
  • FIG. 16 is the first magnetic permeability
  • Fig. 17 is a schematic structural diagram of the second section in Fig. 13
  • Fig. 18 is a frequency response curve diagram of the loudspeaker in Fig. 13.
  • the first side plate 352a may be connected to the end of the voice coil 34 away from the first vibrating plate 351, and the first side plate 352a may serve as the second vibrating plate 352b.
  • 34 vibrates it simultaneously drives the first vibrating plate 351 and the second vibrating plate 352b to vibrate.
  • the sound waves radiated from both sides of the flat plate can be superimposed and used, and the sound waves of the first vibrating plate 351 and the second vibrating plate 352b can be superimposed and used, and the sound pressure level is high.
  • the distance there is a distance between the side of the exciter away from the first vibrating plate 351 and the second vibrating plate 352b to prevent the exciter from colliding with the second vibrating plate 352b.
  • the distance evolves into the distance between the second vibrating plate 352b and the first magnetic conductive member 331.
  • the thickness of the speaker 30 does not increase.
  • the first vibration plate 351 and the second vibration plate 352b can be arranged at any angle with the axis of the voice coil 34.
  • the first vibration plate 351 and the second vibration plate 352b can be arranged parallel to The axis of the ring 34 is vertically arranged.
  • the material and structure of the second vibrating plate 352b may be the same as the first vibrating plate 351. Specifically, in order to facilitate the air to radiate a greater sound pressure level, the mass of the second vibrating plate 352b should be smaller. . At the same time, in order to facilitate the excitation of lower-frequency low-order resonance modes and reduce the weight of the speaker 30, the thickness of the second vibration plate 352b should be small. Further, when the thickness of the second vibration plate 352b is less than 1.5 mm, the rigidity of the second vibration plate 352b needs to be strengthened to prevent the second vibration plate 352b from being deformed.
  • the second vibrating plate 352b may be a paper core honeycomb panel with a thickness of 1 mm-1.5 mm, which is small in weight and high in strength.
  • the first vibrating plate 351 and the second vibrating plate 352b may be connected to the two end faces of the voice coil 34, respectively, wherein the voice coil 34 may be connected to the first vibrating plate 351 and the first vibrating plate 351 and the second vibration plate through a detachable part such as a pin.
  • the two vibrating plates 352b are connected, and they can also be pasted and fixed by adhesives such as adhesives.
  • the fitting portion 348 may include a first flange 345 and a second flange 346.
  • the first flange 345 is arranged at the end connecting the voice coil 34 and the first vibration plate 351, the first flange 345 is arranged perpendicular to the axis of the voice coil 34, and the first flange 345 is attached to the first flange 345.
  • the end of the voice coil 34 connected to the second vibrating plate 352b may be provided with a second flange 346 disposed at the end of the voice coil 34 connected to the second vibrating plate 352b, the second flange 346 and the voice coil 34
  • the second flange 346 is mounted on the second vibration plate 352b, the first flange 345 and the first vibration plate 351, and the connection between the second flange 346 and the second vibration plate 352b The area becomes larger and the connection stability is high.
  • the first magnetic conductive member 331 may include a supporting plate 3311 and a side wall 3312, and the magnet 332 is disposed on the supporting plate 3311.
  • the support plate 3311 may be provided with a through hole 3313, one end of the voice coil 34 passes through the through hole 3313 and even the support plate 3311 is on the side facing away from the side wall 3312, so that the first vibration plate 351 and the second vibration plate 352b can be provided separately On both sides of the magnetic assembly 33, collision and interference with the magnetic assembly 33 when the first vibrating plate 351 or the second vibrating plate 352b vibrates is avoided.
  • the voice coil 34 is cylindrical and penetrates the magnetic air gap, so that the magnet 332 and the washer are arranged on the part of the support plate 3311 located inside the voice coil 34, and the outer wall surface and the side wall of the voice coil 34
  • the interval between 3312 is the third interval.
  • the voice coil 34 may be an integral design.
  • the end of the voice coil 34 is provided with protrusions spaced apart in the circumferential direction of the voice coil 34, and the end surface of the protrusions may be connected to the first vibration plate 351 or The second vibration plate 352b is connected.
  • the voice coil 34 may be of a split design, and the voice coil 34 includes a first section 341 and a first section 341 connected to each other.
  • Two sections 342, the first end of the second section 342 is connected to the first vibrating plate 351, the second section 342 is connected to the second vibrating plate 352b at the end of the first section 341; the first section 341 is away from the first vibrating plate 351
  • One end of the second section 342 and one end of the second section 342 away from the second vibration plate 352b are provided with a plurality of first protrusions 343, and the first protrusions 343 are connected to the other through the through holes 3313;
  • a protruding portion 343 is arranged at intervals along the circumferential direction of the voice coil 34, and each first protruding portion 343 corresponds to a through hole 3313.
  • the outer wall surface of the first protrusion 343 away from the axis of the voice coil 34 may be arranged in close contact with the outer wall surface or the inner wall surface of the other of the first section 341 and the second section 342, and the connection area is large.
  • the connection reliability between the first section 341 and the second section 342 is high.
  • the first section 341 and the second section 342 may be connected by a detachable member such as a pin, or may be bonded by an adhesive member such as an adhesive, which is not limited in this embodiment.
  • the extension length of the first protrusion 343 in the axial direction of the voice coil 34 may be greater than the thickness of the supporting plate 3311 to prevent the first end or the second section 342 from interacting with the supporting plate 3311 when the voice coil 34 vibrates. Collision interference.
  • the number of the through holes 3313 may correspond to the first protrusions 343 in a one-to-one correspondence, or a plurality of first protrusions 343 may share a through hole 3313, as long as there is a sliding gap between the through holes 3313 and the first protrusions 343 It is sufficient to prevent collision between the first protrusion 343 and the through hole 3313 when the voice coil 34 vibrates.
  • the guide member 31 may be an elastic wave in the related art, and the number of the elastic wave may be one, and the elastic wave is arranged on either side of the first magnetic conductive member 331.
  • the voice coil 34 passes through the through hole 3313 and extends to the other side of the support plate 3311 away from the side wall 3312.
  • the height of the voice coil 34 along its own axis becomes larger. Accordingly, the number of elastic waves It can also be more than one.
  • the speaker 30 includes a first elastic wave 315 and a second elastic wave 316, and the first elastic wave 315 and the second elastic wave 316 are respectively disposed on both ends of the side wall 3312 along the axis of the voice coil 34;
  • the elastic wave 315 is provided with a first centering hole
  • the second elastic wave 316 is provided with a second centering hole.
  • the wall surface of the end connected to the second vibration plate 352b is in contact with the hole wall of the second centering hole.
  • the first centering hole, the second centering hole and the voice coil 34 are arranged coaxially. When the voice coil 34 vibrates, the two ends of the voice coil 34 are respectively constrained by the first centering hole and the second centering hole. High to avoid radial deviation of the voice coil 34.
  • the guiding member 31 may further include a first guiding portion 311 and a second guiding portion 312, the first guiding portion 311 is connected to one end of the voice coil 34 and the second supporting portion 322, and the second guiding portion 312 is connected to the voice coil.
  • the other end of the 34 and the second support portion 322, any one of the first guide portion 311 and the second guide portion 312 may be arranged obliquely with respect to the axis of the voice coil 34, or may be arranged perpendicular to the axis of the voice coil 34.
  • the modal characteristic of the flat panel is that in the low frequency band, the low-order resonance mode frequency is sparse, and in the high frequency band, the high-order resonance mode frequency is dense. Due to the sparse frequency of the low-order resonance mode, it will cause deep valleys in the frequency response curve of the low frequency range, and the low frequency effect of the speaker 30 is not ideal.
  • the sound waves radiated from both sides of the flat panel can be superimposed and used, and the sound waves of the first vibrating plate 351 and the second vibrating plate 352b can be superimposed and used, for example, superimposed use in a low frequency band.
  • the first vibration plate 351 and the second vibration plate 352b may have different resonance modal frequencies.
  • the resonant mode frequencies of the first vibrating plate 351 are f 1 , f 2 , f 3 , f 4 , f 5 ...
  • the resonant mode frequencies of the second vibrating plate 352b are f a , f b , f c , f d , f e ...
  • the resonant mode frequencies of the speaker 30 are f 1 , f a , f 2 , f b , f 3 , f c , f 4 , f d , f 5 , f e ..., the speaker is realized
  • the low frequency modal frequency of 30 is more densely designed, please refer to Figure 18, which makes the low frequency range of the frequency response curve of the speaker 30 smoother and improves the low frequency performance of the speaker 30.
  • the first vibration plate 351 and the second vibration plate 352b are different from each other.
  • the resonant mode frequency of the plate 352b is different.
  • the material of the first vibrating plate 351 and the second vibrating plate 352b can be the same, that is, the material density and material stiffness are the same, and the thickness of the first vibrating plate 351 and the second vibrating plate 352b can also be The same is true as long as the projection of the second vibration plate 352b on the first vibration plate 351 is located inside the first vibration plate 351.
  • the length and the width of the second vibration plate 352b may be correspondingly smaller than those of the first vibration plate 351.
  • length Width the length and width of the first vibrating plate 351 can be a 1 , b 1
  • the length and width of the second vibrating plate 352b can be a 2 , b 2 , respectively, as long as a 2 ⁇ a 1 , b 2 ⁇ b 1 or a 2 ⁇ a 1 , b 2 ⁇ b 1 is enough.
  • the side bar 353 connects the first vibrating plate 351 and the second vibrating plate 352b, and the side bar 353, the first vibrating plate 351 and the second vibrating plate 352b enclose the second accommodating cavity for accommodating the voice coil 34 , So that the first vibrating plate 351 and the second vibrating plate 352b constitute the wall surface of the second accommodating cavity.
  • the exciter of the flat-panel speaker is located in the box, and there is a distance between the end face of the exciter facing away from the vibrating plate and the side plate of the box away from the vibrating plate to prevent the exciter from colliding with the box.
  • the voice coil 34 is connected to the second vibrating plate 352b facing away from the first vibrating plate 351, and the distance evolves into the distance between the second vibrating plate 352b and the supporting plate 3311.
  • the thickness of the speaker 30 in this embodiment is Will not increase.
  • the side bar 353 includes: Flange 3536, the first flanging 3536 and the first vibrating plate 351 are arranged perpendicularly; the second flanging 3537, the second flanging 3537 and the first flanging 3536 are arranged perpendicularly, the second flanging 3537 is close to the first flanging 3536
  • the second vibration plate 352b is connected with the second flange 3537, at least part of the second flange 3537 extends outside the second vibration plate 352b, and the sound outlet 3535 is arranged on the first flange 3536 superior.
  • the second vibration plate 352b is overlapped with the second flange 3537, and the second vibration plate 352b and the second flange 3537 may have the same shape as the first vibration plate 351 after being connected.
  • the material of the second side and the first fold 3536 can be the same or different, the second fold 3537 can be a plastic plate or an aluminum plate, and the first fold 3536 can be a plastic plate or an aluminum plate.
  • FIG. 19 is a schematic structural diagram of another speaker provided by an embodiment of this application
  • FIG. 20 is a schematic structural diagram of another speaker provided by an embodiment of this application
  • FIG. 21 is a schematic structural diagram of another speaker provided by an embodiment of this application.
  • the voice coil 34 may not be connected to the side plate of the voice coil facing away from the vibrating member on the cabinet, that is, the speaker 30 further includes: a cabinet where the voice coil 34 and the guide 31 are located The box body; the box body includes a second side plate 361, the second side plate 361 is arranged on the side of the voice coil 34 away from the vibrating member.
  • the second side plate 361 is provided with a first avoiding hole 3611, and at least one end of the magnetic component 33 facing away from the vibrating member is located in the first avoiding hole 3611.
  • the shape of the first avoiding hole 3611 can be square, round, etc., as long as the diameter of the first avoiding hole 3611 is larger than the circumferential size of the magnetic component 33 to prevent the magnetic component 33 from colliding with the second side plate 361.
  • the end surface of the magnetic component 33 facing away from the vibrating component can be on the same plane as the side surface of the second side plate 361 close to the vibrating member, or the end surface can be located in the first avoiding hole 3611, and the speaker 30 does not need to be provided with an exciter and a second side. In the avoidance distance between the side plates 361, the thickness of the speaker 30 becomes smaller, and the thickness of the display device becomes smaller.
  • the first avoiding hole 3611 penetrates the second side plate 361, and the end surface of the magnetic component 33 away from the vibrating element and the side surface of the second side plate 361 away from the vibrating element are located in the same plane.
  • the thickness of the speaker 30 is the sum of the thickness of the exciter and the thickness of the vibrating member. Compared with the speaker 30 in the related art, the thickness of the speaker 30 provided in the present application is reduced by the thickness of the second side plate 361 and the magnetic component 33 and the second For the avoidance distance between the side plates 361, the thickness of the speaker 30 is small, and the thickness of the display device is small.
  • the speaker 30 is installed in the display device.
  • the second side plate 361 of the speaker 30 can be perpendicular to the horizontal plane.
  • one end of the exciter is connected to the vibrating member, and the other end of the exciter extends into the first escape hole 3611 and is a free end.
  • the speaker will deviate under the action of gravity, causing the speaker 30 to produce noise.
  • the speaker 30 further includes an elastic connecting member 362, which connects the first avoiding hole 3611 and the end of the magnetic component 33 away from the vibrating member. It is understandable that the elastic connecting member 362 connects the first avoiding hole 3611 and the magnetic component 33.
  • the number of elastic connecting members 362 can be multiple, and they are arranged at intervals along the circumferential direction of the first avoiding hole 3611. Any elastic connecting member 362 The exciter can be connected to the first avoiding hole 3611 to prevent the exciter from being eccentric.
  • the elastic connecting member 362 may be in a sheet shape or a plate shape, etc., so as to avoid occupying the thickness space of the speaker 30.
  • the material of the elastic connecting member 362 may be rubber, woven cloth, polyurethane (PU for short), or any material used in elastic waves in related technologies.
  • the elastic force of the elastic connecting member 362 can make the exciter vibrate following the vibration assembly, which is convenient to use.
  • the elastic connecting member 362 has a ring shape, and the ring-shaped elastic connecting member 362 closes the first escape hole 3611, and the connection is reliable.
  • the elastic connecting member 362 may be in the shape of a flat plate, or the elastic connecting member 362 may face the vibrating member.
  • One side of the dent is arc-shaped.
  • the speaker 30 further includes: a sub-side plate 363, the sub-side plate 363 is located at the first avoiding hole 3611, the sub-side plate 363 is located on the side facing away from the vibrating member and the second side plate 361 is located on the side facing away from the vibrating member.
  • the sub-side plate 363 is provided with a second avoiding hole 3631, the end of the magnetic component 33 away from the vibrating member is connected to the second avoiding hole 3631, and the elastic connecting member 362 connects the first avoiding hole 3611 and the sub-side plate 363.
  • the sub-side plate 363 can act as a centering support for the exciter.
  • the sub-side plate 363 can also be used as a vibrating member. When the exciter vibrates, the sub-side plate 363 vibrates to generate sound waves, which helps the speaker 30 to radiate more sound waves. , Improve the sound pressure level of sound waves.
  • the sub-side plate 363 is connected to the first escape hole 3611 through the elastic connecting member 362, wherein the shape of the sub-side plate 363 can be square, round, etc., which is not limited in this embodiment.
  • the material of the sub-side plate 363 may be the same as the material of the second side plate 361, and may be a paper core honeycomb panel.
  • the sub-side plate 363 is also provided with a second avoiding hole 3631 for connecting the magnetic assembly 33.
  • the second avoiding hole 3631 can penetrate through the sub-side plate 363, so that the thickness of the speaker 30 can be maintained to be between the thickness of the exciter and the thickness of the second side plate 361. And, the thickness of the speaker 30 is small, and the thickness of the display device is small.
  • the present application also provides a speaker 30, which includes: a voice coil 34; a vibrating member, which is connected to the voice coil 34, and the voice coil 34 drives the vibrating member to vibrate;
  • the coil 34 is connected, and the guide 31 can be elastically deformed along the axis of the voice coil 34 when the voice coil 34 vibrates.
  • the speaker 30 may be applied to display devices such as LCD TVs, plasma TVs, displays, etc., for playing sound.
  • the guide 31 is directly connected to the voice coil 34.
  • the voice coil 34 vibrates
  • the guide 31 follows the voice coil 34 and undergoes elastic deformation along the axis of the voice coil 34.
  • the guide 31 will never interact with the vibrating member.
  • the collision that is, when the gap between the guide 31 and the support 32 or the magnetic assembly 33 remains the same as the gap in the related art, at least the gap between the guide 31 and the vibrating member is reduced, and the thickness of the speaker 30 becomes smaller.
  • the thickness of the display device becomes smaller.

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Abstract

本申请提供一种显示装置和扬声器,该显示装置包括:显示面板,所述显示面板用于显示图像;后壳,所述后壳承托所述显示面板,所述后壳和所述显示面板围成第一容置腔;扬声器,所述扬声器位于所述第一容置腔内,所述扬声器包括导向件和音圈,所述导向件与所述音圈相连;所述导向件能在所述音圈振动时发生沿所述音圈轴线方向的弹性变形。本申请提供的扬声器厚度小,显示装置厚度小。

Description

显示装置和扬声器
本专利申请要求于2020年2月6日提交的、申请号为202010081875.4;于2020年2月6日提交的、申请号为202010081873.5;于2020年2月6日提交的、申请号为202010081864.6;于2020年2月6日提交的、申请号为202020154382.4;于2020年2月6日提交的、申请号为202010081865.0的中国专利申请的优先权,该申请的全文以引用的方式并入本文中。
技术领域
本申请涉及显示器技术领域,尤其涉及一种显示装置和扬声器。
背景技术
随着科技的发展和人们生活水平的提高,液晶电视等显示装置越来越多的应用在人们的工作和生活中。
液晶电视通常包括后壳、显示面板、扬声器等;后壳与显示面板围城容置腔,扬声器位于容置腔内。扬声器包括振动组件,以锥盆扬声器为例,振动组件包括音圈、锥盆、弹波以及支撑件,锥盆与音圈的端部连接,支撑件位于音圈背离锥盆的另一端,弹波呈环状,环状弹波的内侧与音圈的外壁面接触,引导音圈沿其自身轴线方向往复移动,且弹波位于锥盆与支撑件之间。为避免扬声器工作时产生杂音,弹波与锥盆之间具有第一避让间距,弹波与支撑件之间具有第二避让间距。
沿音圈的轴线方向叠加设置的多个避让间距会导致扬声器的厚度大,液晶电视等的显示装置的厚度也会随之增加,不符合显示装置超薄化的发展趋势。
发明内容
鉴于上述问题,本申请实施例提供一种显示装置和扬声器,扬声器的厚度小,显示装置的厚度小。
为了实现上述目的,本申请实施例提供如下技术方案:
本申请实施例提供一种显示装置,其包括:显示面板,所述显示面板用于显示图像;后壳,所述后壳承托所述显示面板,所述后壳和所述显示面板围成第一容置腔;扬声器,所述扬声器位于所述第一容置腔内,所述扬声器包括导向件和音圈,所述导向件与所述音圈相连;所述导向件能在所述音圈振动时发生沿所述音圈轴线方向的弹性变形。
在一些实施例中,所述扬声器还包括振动件,所述振动件与所述音圈沿轴线方向的一端连接;导向件包括第一导向部,所述第一导向部围在所述音圈外,所述第一导向部与所述音圈靠近所述振动件的一端连接,所述第一导向部向背离所述音圈轴线的一侧延伸。
在一些实施例中,所述扬声器还包括承托件,所述承托件贴装在所述振动件上, 所述音圈与所述承托件背离所述振动件的一侧连接;所述第一导向部与所述承托件连接。
在一些实施例中,所述扬声器还包括:磁性组件,所述磁性组件用于生成磁场,所述音圈在所述磁场中沿所述音圈的轴线方向振动;支撑件,所述支撑件与所述磁性组件连接,所述第一导向部背离所述音圈的一侧与所述支撑件连接。
在一些实施例中,所述支撑件包括:第一支撑部,所述第一支撑部围设在所述磁性组件外,所述第一支撑部与所述磁性组件连接;第二支撑部,所述第二支撑部围在所述第一支撑部外,所述第一导向部背离所述音圈的一侧与所述第二支撑部连接。
在一些实施例中,所述导向件还包括:第二导向部,所述第二导向部连接所述第一支撑部和所述第二支撑部,所述第二导向部与所述第一导向部沿所述音圈的轴线方向间隔设置。
在一些实施例中,所述第一导向部和/或所述第二导向部包括沿所述音圈的周向间隔设置的多个导向片。
在一些实施例中,所述导向片沿所述音圈周向的一个或两个侧边设有减强口,所述减强口沿所述音圈的周向延伸。
在一些实施例中,所述振动件为平板状的第一振动板,所述音圈与所述第一振动板连接,所述音圈的振动传递到所述第一振动板,以带动所述第一振动板振动。
在一些实施例中,所述第一振动板包括:纸芯;第一蒙皮,所述第一蒙皮覆盖所述纸芯背离所述音圈的侧面;第二蒙皮,所述第二蒙皮覆盖所述纸芯设置所述音圈的侧面,所述音圈与所述第二蒙皮连接。
在一些实施例中,所述扬声器还包括:第一侧板,所述第一侧板设置在所述音圈背离所述第一振动板的一侧,且所述第一侧板设置在所述第一振动板背离所述后壳的一侧;边条,所述边条连接所述第一振动板与所述第一侧板,所述第一振动板、所述第一侧板和所述边条围成容置所述音圈的第二容置腔,所述边条与所述后壳或所述显示面板连接。
在一些实施例中,所述第一振动板与所述后壳之间设有第一避让间隙。
在一些实施例中,所述边条上还设有出音口,所述边条包括:第一壁面,所述第一壁面位于所述第二容置腔内;第二壁面,所述第二壁面与所述第一壁面相对设置;所述第一壁面和所述第二壁面中的至少一者设有减强槽。
在一些实施例中,所述第一振动板和/或所述第一侧板设有若干彼此朝向对方延伸的支撑杆,若干所述支撑杆沿所述边条的长度方向间隔设置,所述边条上设有与所述支撑杆插接配合的插接孔;所述支撑杆的延伸长度小于所述第一振动板和所述第一侧板的间距。
在一些实施例中,所述边条上还设有出音口,所述出音口朝向所述后壳的底侧、或者所述后壳背离所述显示面板的一侧。
在一些实施例中,所述扬声器还包括:箱体,所述音圈、所述导向件位于所述箱 体内;所述箱体包括第二侧板,所述第二侧板设置在所述音圈背离所述振动件的一侧;所述第二侧板上设有第一避让孔,至少部分所述磁性组件背离所述振动件的一端位于所述第一避让孔内。
在一些实施例中,所述第一避让孔贯穿所述第二侧板,所述磁性组件背离所述振动件的端面与所述第二侧板背离所述振动件的侧面位于同一平面内。
在一些实施例中,所述扬声器还包括:弹性连接件,所述弹性连接件连接所述第一避让孔与所述磁性组件背离所述振动件的一端。
在一些实施例中,所述扬声器还包括:子侧板,所述子侧板位于所述第一避让孔处,所述子侧板背离所述振动件的子侧面与所述第二侧板背离所述振动件的侧面位于同一平面内;所述子侧板设有第二避让孔,所述磁性组件背离所述振动件的一端与所述第二避让孔连接,所述弹性连接件连接所述第一避让孔与所述子侧板。
本申请实施例提供的显示装置具有如下优点:显示装置包括显示面板和后壳,显示面板用于显示图像,后壳用于承托显示面板,显示面板和后壳连接形成容置腔,显示装置还包括扬声器,扬声器设置在容置腔内。其中,扬声器包括导向件、音圈和振动件,音圈振动时带动振动件振动发声;导向件与音圈连接,导向件可以具有沿音圈轴线方向的弹性变形,当音圈振动时,引导音圈沿自身轴线方向移动。由于导向件与音圈连接,导向件跟随音圈振动,至少导向件不会与振动件发生碰撞干涉,振动件与导向件之间的间距可以变小,降低扬声器的厚度,显示装置的厚度也随之变小,符合显示装置超薄化的发展趋势。
本申请实施例还提供一种扬声器,其包括:音圈;振动件,所述振动件与所述音圈连接,所述音圈带动所述振动件振动;导向件,所述导向件与所述音圈连接,所述导向件能在所述音圈振动时发生沿所述音圈轴线方向的弹性变形。
本申请实施例还提供一种显示装置,其包括:显示面板,所述显示面板用于显示图像;后壳,所述后壳承托所述显示面板,所述后壳和所述显示面板围成第一容置腔;扬声器,所述扬声器位于所述第一容置腔内,所述扬声器包括激励器和第一振动板,所述激励器包括音圈,所述音圈与所述第一振动板连接,所述音圈的振动传递到所述第一振动板,以带动所述第一振动板振动。
在一些实施例中,所述扬声器还包括:第一侧板,所述第一侧板设置在所述音圈背离所述第一振动板的一侧,且所述第一侧板设置在所述第一振动板背离所述后壳的一侧;边条,所述边条连接所述第一振动板与所述第一侧板,所述第一振动板、所述第一侧板和所述边条围成容置所述音圈的第二容置腔,所述边条与所述后壳连接。
在一些实施例中,所述第一振动板与所述后壳之间设有第一避让间隙;所述激励器背离所述音圈的一端与所述第一侧板之间设有第二避让间隙。
在一些实施例中,所述边条包括:第一壁面,所述第一壁面位于所述第二容置腔内;第二壁面,所述第二壁面与所述第一壁面相对设置;所述第一壁面和所述第二壁面中的至少一者设有减强槽。
在一些实施例中,所述减强槽沿所述边条的长度方向延伸。
在一些实施例中,所述第一振动板和/或所述第一侧板设有若干彼此朝向对方延伸的支撑杆,若干所述支撑杆沿所述边条的长度方向间隔设置,所述边条上设有与所述支撑杆插接配合的插接孔;所述支撑杆的延伸长度小于所述第一振动板和所述第一侧板的间距。
在一些实施例中,所述边条上还设有出音口,所述出音口朝向所述后壳的底侧和/或所述后壳背离所述显示面板的一侧。
在一些实施例中,所述第一振动板包括:纸芯;第一蒙皮,所述第一蒙皮覆盖所述纸芯背离所述音圈的侧面;第二蒙皮,所述第二蒙皮覆盖所述纸芯设置所述音圈的侧面,所述音圈与所述第二蒙皮连接
在一些实施例中,所述边条为弹性材质制件。
与相关技术相比,本申请实施例提供的显示装置具有如下优点:显示装置包括显示面板和后壳,显示面板用于显示图像,后壳用于承托显示面板,显示面板和后壳连接形成第一容置腔,显示装置还包括扬声器,扬声器设置在第一容置腔内。其中,扬声器包括激励器,激励器包括音圈,音圈与第一振动板连接,扬声器工作时,音圈带动第一振动板振动,即本申请实施例中扬声器的振动件呈板状,与相关技术中锥筒状的锥盆相比,振动件的厚度变小,扬声器的厚度变小,应用该扬声器的显示装置的厚度变小,符合显示装置超薄化的发展趋势。
本申请实施例还提供一种扬声器,其包括第一振动板;激励器,所述激励器包括音圈和第一振动板,所述音圈与所述第一振动板连接,所述音圈的振动传递到所述第一振动板,以带动所述第一振动板振动。
在一些实施例中,所述扬声器还包括:第一侧板,所述第一侧板设置在所述音圈背离所述第一振动板的一侧;边条,所述边条连接所述第一振动板与所述第一侧板,所述第一振动板、所述第一侧板和所述边条围成容置所述激励器的第二容置腔。
本申请实施例提供一种显示装置,其包括:显示面板,所述显示面板用于显示图像;后壳,所述后壳承托所述显示面板,所述后壳和所述显示面板围成容置腔;扬声器,所述扬声器位于所述容置腔内;所述扬声器包括激励器、振动件以及箱体,所述激励器位于所述箱体内,所述激励器与所述振动件连接,所述箱体包括第二侧板,所述第二侧板位于激励器背离所述振动件的一侧;所述第二侧板上设有第一避让孔,所述激励器背离所述振动件的一端位于所述第一避让孔内。
在一些实施例中,所述第一避让孔贯穿所述第二侧板,所述激励器背离所述振动件的端面与所述第二侧板背离所述振动件的侧面位于同一平面内。
在一些实施例中,所述箱体还包括:弹性连接件,所述弹性连接件连接所述第一避让孔与所述激励器背离所述振动件的一端。
在一些实施例中,所述弹性连接件呈环状,环状的所述弹性连接件封闭所述第一避让孔。
在一些实施例中,所述弹性连接件向所述振动件的一侧凹陷呈弧状。
在一些实施例中,所述箱体还包括:子振动板,所述子振动板位于所述第一避让孔处,所述子振动板背离所述振动件的侧面与所述第二侧板背离所述振动件的侧面位于同一平面内;所述子振动板设有第二避让孔,所述激励器背离所述振动件的一端与所述第二避让孔连接,所述弹性连接件连接所述第一避让孔与所述子振动板。
在一些实施例中,所述振动件为平板状的第一振动板,所述激励器与所述第一振动板连接,所述激励器带动所述第一振动板振动;所述第一振动板和所述第二侧板连接形成所述箱体。
在一些实施例中,所述第一振动板包括:纸芯;第一蒙皮,所述第一蒙皮覆盖所述纸芯背离所述音圈的侧面;第二蒙皮,所述第二蒙皮覆盖所述纸芯设置所述音圈的侧面,所述音圈与所述第二蒙皮连接。
在一些实施例中,所述扬声器还包括:边条,所述边条连接所述第一振动板和所述第二侧板,所述边条与所述后壳或所述显示面板连接。
在一些实施例中,所述第二侧板位于所述第一振动板背离所述后壳的一侧,所述第一振动板与所述后壳之间具有第一避让间隙。
在一些实施例中,所述边条包括:第一壁面,所述第一壁面位于所述箱体内;第二壁面,所述第二壁面与所述第一壁面相对设置;所述第一壁面和所述第二壁面中的至少一者设有减强槽。
在一些实施例中,所述减强槽沿所述边条的长度方向延伸。
在一些实施例中,所述第一振动板和/或所述第二侧板设有若干彼此朝向对方延伸的支撑杆,若干所述支撑杆沿所述边条的长度方向间隔设置,所述边条上设有与所述支撑杆插接配合的插接孔;所述支撑杆的延伸长度小于所述第一振动板和所述第二侧板的间距。
在一些实施例中,所述边条上设有出音口,所述出音口朝向所述后壳的底侧、或者朝向所述后壳背离所述显示面板的一侧。
在一些实施例中,所述边条为弹性材质制件。
与相关技术相比,本申请实施例提供的显示装置具有如下优点:显示装置包括显示面板和后壳,显示面板用于显示图像,后壳用于承托显示面板,显示面板和后壳连接形成容置腔,显示装置还包括扬声器,扬声器设置在容置腔内。其中,扬声器包括激励器、振动件以及箱体,箱体包括相对设置的第二侧板和振动件,激励器与振动件连接,第二侧板上设有避让激励器的第一避让孔,激励器背离振动件的一端至少有部分位于第一避让孔内,使得本申请实施例提供的显示装置中的扬声器可以避免设置第二侧板与激励器之间的避让间隙,扬声器的厚度变小,应用该扬声器的显示装置的厚度变小,符合显示装置超薄化的发展趋势。
本申请实施例还提供一种扬声器,其包括:箱体,所述箱体与显示装置连接,所述箱体包括第二侧板;激励器,所述激励器位于所述箱体内;振动件,所述第二侧板 位于所述激励器背离所述振动件的一侧,所述第二侧板上设有第一避让孔,所述激励器背离所述振动件的一端位于所述第一避让孔内。
本申请实施例提供一种显示装置,其包括:显示面板,所述显示面板用于显示图像;后壳,所述后壳承托所述显示面板,所述后壳和所述显示面板围成第一容置腔;扬声器,所述扬声器位于所述第一容置腔内,所述扬声器包括音圈和第一振动板;所述音圈与所述第一振动板连接,所述音圈的振动传递到所述第一振动板,以带动所述第一振动板振动。
在一些实施例中,所述第一振动板包括:纸芯;第一蒙皮,所述第一蒙皮覆盖所述纸芯背离所述音圈的侧面;第二蒙皮,所述第二蒙皮覆盖所述纸芯设置所述音圈的侧面,所述音圈与所述第二蒙皮连接。
在一些实施例中,所述扬声器还包括:连接片,所述连接片贴装在所述第一振动板上,所述音圈与所述连接片连接,沿所述音圈的轴线方向,所述连接片在所述第一振动板上的投影覆盖所述音圈在所述第一振动板上的投影。
在一些实施例中,所述第一振动板靠近所述音圈的侧面设有减厚孔,所述减厚孔向背离所述音圈的一侧延伸。
在一些实施例中,所述连接片包括:连接部,所述连接部与所述第一振动板靠近所述音圈的侧面连接;第二凸出部,所述第二凸出部伸入所述减厚孔,所述音圈与所述第二凸出部连接,至少部分所述音圈伸入所述减厚孔内。
在一些实施例中,所述减厚孔沿垂直于所述第一振动板的方向贯穿所述第一振动板。
在一些实施例中,所述第二凸出部背离所述音圈的一侧与所述第一振动板背离所述音圈的一侧位于同一平面内,所述连接片的厚度小于所述第一振动板的厚度。
在一些实施例中,所述连接片为金属材质制件。
在一些实施例中,所述音圈包括:筒体;贴合部,所述贴合部与所述筒体连接,所述贴合部贴装在所述第一振动板上。
在一些实施例中,所述扬声器还包括:第一侧板,所述第一侧板和所述第一振动板围成容置所述音圈的第二容置腔。
在一些实施例中,所述扬声器还包括:边条,所述边条连接所述第一侧板和所述第一振动板,所述边条与所述后壳或所述显示面板连接。
在一些实施例中,所述边条上设有出音口。
与相关技术相比,本申请实施例提供的显示装置具有如下优点:显示装置包括显示面板和后壳,显示面板用于显示图像,后壳用于支撑显示面板,显示面板和后壳围成容置扬声器的容置腔。扬声器包括激励器,激励器包括音圈和第一振动板,音圈与第一振动板连接,扬声器工作时,音圈带动第一振动板振动,即本申请实施例中扬声器的振动件呈板状,与相关技术中锥筒状的锥盆相比,振动件的厚度变小,扬声器的厚度变小,应用该扬声器的显示装置的厚度变小,符合显示装置超薄化的发展趋势。
本申请实施例还提供一种扬声器,其包括:音圈;第一振动板,所述音圈与所述第一振动板连接,所述音圈的振动传递到所述第一振动板,以带动所述第一振动板振动。
本申请实施例还提供一种显示装置,其包括:显示面板,所述显示面板用于显示图像;后壳,所述后壳承托所述显示面板,所述后壳和所述显示面板围成第一容置腔;扬声器,所述扬声器位于所述第一容置腔内,所述扬声器包括音圈和分别与所述音圈两端连接的第一振动板、第二振动板,所述音圈的振动传递到所述第一振动板和所述第二振动板,以带动所述第一振动板和所述第二振动板振动。
在一些实施例中,所述扬声器包括磁体和桶状的第一导磁件,所述第一导磁件包括承托板和侧壁;所述承托板上设有通孔,所述音圈的一端穿过所述通孔并伸至所述承托板背离所述侧壁的一侧;所述磁体设置在所述承托板位于所述音圈内的部分。
在一些实施例中,所述音圈包括相连接的第一段和第二段,所述第一段背离所述第二段的一端与所述第一振动板连接,所述第二段背离所述第一段的一端与所述第二振动板连接;所述第一段背离所述第一振动板的一端以及所述第二段背离所述第二振动板的一端中的一者设有多个凸出部,所述凸出部穿过所述通孔与另一者连接;多个所述凸出部沿所述音圈的周向间隔设置,每个所述凸出部均对应一个所述通孔。
在一些实施例中,所述扬声器包括第一导向件和第二导向件,所述第一导向件和所述第二导向件分别设置在所述侧壁沿所述音圈轴线方向的两端;所述第一导向件设有第一定心孔,所述第二导向件设有第二定心孔,所述音圈与所述第一振动板连接一端的壁面与所述第一定心孔的孔壁接触,所述音圈与所述第二振动板连接一端的壁面与所述第二定心孔的孔壁接触。
在一些实施例中,所述第一振动板和所述第二振动板具有不同的共振模态频率。
在一些实施例中,所述第二振动板在所述第一振动板上的投影位于所述第一振动板内。
在一些实施例中,所述扬声器包括边条,所述边条连接所述第一振动板和所述第二振动板,所述边条、所述第一振动板和所述第二振动板围成容置所述音圈的第二容置腔。
在一些实施例中,所述边条包括:第一折边,所述第一折边与所述第一振动板垂直设置;第二折边,所述第二折边与所述第一折边垂直设置,所述第二折边与所述第一折边靠近所述第二振动板的一侧连接,所述第二振动板与所述第二折边连接,至少部分所述第二折边伸出所述第二振动板外。
在一些实施例中,所述音圈与所述第一振动板连接的一端设有第一翻边,所述第一翻边与所述音圈的轴线垂直设置,所述第一翻边贴装在所述第一振动板上;所述音圈与所述第二振动板连接的一端设有第二翻边,所述第二翻边与所述音圈的轴线垂直设置,所述第二翻边贴装在所述第二振动板上。
在一些实施例中,所述第一振动板和所述第二振动板结构相同,均包括:纸芯; 第一蒙皮,所述第一蒙皮覆盖所述纸芯背离所述音圈的侧面;第二蒙皮,所述第二蒙皮覆盖所述纸芯设置所述音圈的侧面,所述音圈与所述第二蒙皮连接。
与相关技术相比,本申请实施例提供的显示装置具有如下优点:显示装置包括显示面板和后壳,显示面板用于显示图像,后壳用于承托显示面板,显示面板和后壳连接形成容置腔,显示装置还包括扬声器,扬声器设置在容置腔内。其中,扬声器包括音圈和连接在音圈两端的第一振动板和第二振动板,扬声器还包括磁性组件,音圈在电磁作用下沿自身轴线方向往复移动,第一振动板和第二振动板同时随音圈发生振动。第一振动板和第二振动板两侧的声波可以叠加,扬声器的声压级高。并且,相对于两个扬声器叠加设置的方式,本申请实施例通过一个扬声器即可实现高声压级音频信息的播放,扬声器的厚度未增加,即实现了在不增加显示装置厚度的情况下,提高扬声器的声压级,同时改善扬声器在低频段的频响均匀度。
本申请实施例还提供一种扬声器,其包括:音圈;第一振动板和第二振动板,所述第一振动板和所述第二振动板分别与所述音圈的两端连接,所述音圈的振动传递到所述第一振动板和所述第二振动板,以带动所述第一振动板和所述第二振动板振动。
除了上面所描述的本申请实施例解决的技术问题、构成技术方案的技术特征以及由这些技术方案的技术特征所带来的有益效果外,本申请实施例提供的显示装置和扬声器所能解决的其他技术问题、技术方案中包含的其他技术特征以及这些技术特征带来的有益效果,将在具体实施方式中作出进一步详细的说明。
附图说明
为了更清楚地说明本申请实施例或相关技术中的技术方案,下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本申请的一些实施例,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获得其他的附图。
图1为本申请实施例提供的显示装置的结构示意图;
图2为图1中激励器的结构示意图;
图3为图2的激励器的爆炸示意图;
图4为图1中激励器的另一结构示意图;
图5为图4中激励器的剖视图;
图6为第一振动板的结构示意图;
图7为本申请实施例提供的另一扬声器的结构示意图;
图8为图7中扬声器的剖视图;
图9为本申请实施例提供的另一扬声器的结构示意图;
图10为图9中扬声器的剖视图;
图11为图10中扬声器的爆炸示意图;
图12为边条的结构示意图;
图13为本申请实施例提供的另一扬声器的结构示意图;
图14为图13中激励器的结构示意图;
图15为图13中激励器的爆炸示意图;
图16为图13中第一导磁件的结构示意图;
图17为图13中第二段的结构示意图;
图18为图13中扬声器的频响曲线图;
图19为本申请实施例提供的另一扬声器的结构示意图;
图20为本申请实施例提供的另一扬声器的结构示意图;
图21为本申请实施例提供的另一扬声器的结构示意图。
附图标记:
10:显示面板;
20:后壳;
30:扬声器;
31:导向件;311:第一导向部;312:第二导向部;313:导向片;314:减强口;315:第一弹波;316:第二弹波;
32:支撑件;321:第一支撑部;322:第二支撑部;
33:磁性组件;331:第一导磁件;3311:承托板;3312:侧壁;3313:通孔;332:磁体;333:第二导磁件;
34:音圈;341:第一段;342:第二段;343:第一凸出部;345:第一翻边;346:第二翻边;347:筒体;348:贴合部;
351:第一振动板;3511:纸芯;3512:第一蒙皮;3513:第二蒙皮;3514:减厚孔;
352a:第一侧板;352b:第二振动板;
353:边条;3531:第一壁面;3532:第二壁面;3533:减强槽;3534:支撑杆;3535:出音口;3536:第一折边;3537:第二折边;
361:第二侧板;3611:第一避让孔;362:弹性连接件;363:子侧板;3631:第二避让孔;
37:承托件;
38:连接片;381:连接部;382:第二凸出部。
具体实施方式
为了使本申请实施例的上述目的、特征和优点能够更加明显易懂,下面将结合本申请实施例中的附图,对本申请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申请的一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其它实施例,均属于本申请保护的范围。
图1为本申请实施例提供的显示装置的结构示意图;图2为图1中激励器的结构示意图;图3为图2的激励器的爆炸示意图;图4为图1中激励器的另一结构示意图;图5为图4中激励器的剖视图。
请参阅图1至图5,本实施例提供一种显示装置,其包括:显示面板10,显示面板10用于显示图像;后壳20,后壳20承托显示面板10,后壳20和显示面板10围成 第一容置腔;扬声器30,扬声器30位于第一容置腔内。
在一些实施例中,本实施例提供的显示装置可以是液晶电视、等离子电视、显示器等。
显示装置可以包括显示面板10、后壳20以及光学组件,后壳20承托显示面板10,并形成第一容置腔,光学组件位于第一容置腔内。
在一些实施例中,后壳20的材质可以是金属,例如钢、铝镁合金等,具有强度高、散热快等优点。
在一些实施例中,后壳20的材质可以是金属、塑料、玻璃等。
在一些实施例中,显示装置具有薄型化设计,即第一容置腔的厚度较小,可容纳的器件(包括扬声器)也需要薄型化设计。本申请提供的扬声器可以应用到LED显示装置、OLED显示装置或者其他显示装置中。在一些实施例中,请参阅图1,后壳20与扬声器30相对的位置可以设置散热口,有助于扬声器30散热。后壳20的形状可以是矩形、圆形等的与显示面板10相适配的板状结构,也可以是具有曲面形状的立体结构,如柱面或球弧面等,本实施例不进行限制。后壳20可以是一体成型的一体式结构,也可以是由多个子后壳20连接而成的分体式结构,其中,各个子后壳20之间可以通过焊接、螺钉连接等方式固定相连。
在一些实施例中,显示装置还可以包括光源组件,光源组件可以与后壳20连接,光源组件通常为点光源,例如可以是发光二极管(Light Emitting Diode,LED),背光光源发射的光线可以进入光学组件中,以将点光源转为面光源。
光学组件可以应用于液晶电视等需要背光光源的显示装置中,其中,光学组件可以包括依次层叠设置在后壳20上的反射板、导光板和光学膜材组。
反射板可以设置在后壳20和导光板之间,能够对射入导光板的光线进行反射,改变光线的光路,使光线统一由导光板的出光面射出,提高导光板的出光效率。反射板与导光板之间可以通过胶带等粘接件固定连接。
光学膜材组设置在导光板背离后壳20的一侧,用于对导光板出光面射出的光线进行进一步的折射、散射等,使得光学组件能形成更加均匀且具有更高亮度的面光源。其中,光学膜材组可以是扩散膜、棱镜膜等的一种或多种,也可以是分光片、偏振片等其它本领域技术人员常用的光学膜材组,此处不再赘述。
显示面板10设置在光学膜材组上,显示面板10一般为自身不发光的显示面板10,光源组件发出的光线经光学组件后照射至显示面板10上,即可经过显示面板10的调制而形成各种不同的图案和画面,从而完成对图像的显示。显示面板10可以是本领域技术人员熟知的结构。
在一些实施例中,显示装置还可以包括扬声器30,用于播放声音,扬声器30的个数可以是一个或多个,本实施例不进行限制。扬声器30可以包括激励器以及容置激励器的箱体,箱体对激励器形成防护,箱体可以与后壳20连接。箱体的尺寸、形状以及激励器在振动件上的位置可以根据需要进行设置。
在一些实施例中,扬声器30可以包括激励器,激励器包括振动组件,振动组件包括导向件31和音圈34,导向件31与音圈34相连;导向件31能在音圈34振动时发生沿音圈34轴线方向的弹性变形。
相关技术中,弹波等导向件通常围设在音圈34中部,并与音圈34的外壁面接触,通过弹波中部的定心孔引导音圈34移动,且音圈34沿自身轴线方向往复移动时,音圈34相对于弹波移动。且弹波与振动件之间,弹波与磁性组件或者支撑件之间均具有避让间隙,也就是沿音圈34轴线方向连续设置有多个避让间隙,导致音圈34沿自身轴线方向的延伸长度大,扬声器30的厚度大,使得显示装置的厚度大。
而在一些实施例中,导向件31与音圈34直接相连,音圈34振动时,导向件31跟随音圈34发生沿音圈34轴线方向的弹性变形,导向件31始终不会与振动件发生碰撞,也就是当导向件31与支撑件或磁性组件之间的间隙与相关技术中的间隙维持一样时,至少导向件31与振动件之间的间隙降低,扬声器30的厚度变小,显示装置的厚度变小。
其中,导向件31可以包括若干相连的导块,相邻两个导块之间能沿音圈34轴线方向发生相对滑动,音圈34可以带动与其相连的一个导块沿音圈34轴线方向滑动,该导块可以带动与其自身相邻的导块滑动,以此类推实现导向件31对音圈34的导向作用。而相邻两个导块之间不能发生沿音圈34径向的挤压,避免了音圈34沿自身径向偏移,避免发出杂音。
在一些实施例中,扬声器30还包括振动件,振动件与音圈34沿轴线方向的一端连接;导向件31包括第一导向部311,第一导向部311围在音圈34外,第一导向部311与音圈34靠近振动件的一端连接,第一导向部311向背离音圈34轴线的一侧延伸。其中,本实施例不对振动件的结构、种类等进行限制,可以是板状或锥盆状等。
第一导向部311与音圈34靠近振动件的端部连接,使得在音圈34径向上,第一导向部311与音圈34并列设置,在音圈34轴线方向上,无须设置第一导向部311与振动件之间的避让间隙,即在音圈34轴线方向上只有第一导向部311与磁性组件之间的一个避让间隙,扬声器30沿音圈34轴线方向的厚度变小,显示装置的厚度变小。在一些实施例中,该避让间隙可以是0.7mm-2mm。
在一些实施例中,第一导向部311向背离音圈34轴线的一侧延伸成片状或类似片状结构,第一导向部311可以是相关技术中的具有波浪弯折结构的弹波,弹波的定心孔与音圈34外壁面连接,第一导向部311还可以呈环形片状,环形片状的第一导向部311具有定心孔,定心孔与音圈34的外壁面连接,防止第一导向部311发生沿音圈34径向的变形。
第一导向部311所在平面可以与音圈34轴线垂直设置,也可以与音圈34轴线呈锐角或钝角设置。当第一导向部311相对于音圈34的轴线呈锐角或钝角设置时,第一导向部311的弹力可以具有沿音圈34轴线方向的第一分力和沿音圈34径向的第二分力,第一分力可以引导音圈34沿自身轴线方向往复移动,根据音圈34的移动方向, 第二分力可以朝向音圈34轴线或者背离音圈34轴线,当第二分力指向音圈34轴线时,第二分力可以阻挡音圈34发生径向移动,当第二分力朝向背离音圈34一侧时,音圈34有向任意径向位置移动的趋势,相对应的,第一导向部311与该位置相对应的位置处有发生挤压的趋势,第一导向部311上与该任意径向位置相对的位置有发生拉伸的趋势,也就是,沿音圈34周向,第一导向部311自身会避免径向变形,防止音圈34发生径向移动。
在一些实施例中,第一导向部311的材质可以是相关技术中弹波所用材质,例如丙烯腈-丁二烯-苯乙烯共聚物(Acrylonitrile Butadiene Styrene,简称ABS)等,本实施例不进行限制。
在一些实施例中,扬声器30还包括承托件37,承托件37贴装在振动件上,音圈34与承托件37背离振动件的一侧连接。
承托件37可以增加音圈34与振动件的连接面积,提高音圈34与振动件的连接稳定性。根据振动件的形状不同,承托件37可以具有不同形状。示例性的,当振动件为薄壁筒状的锥盆时,承托件37可以是相关技术中的托锥,托锥的靠近音圈34的一侧可以设有与音圈34卡接的环形槽,连接可靠。
在一些实施例中,第一导向部311可以与承托件37连接。其中,承托件37可以与音圈34一体成型,承托件37作为翻边结构与第一导向部311连接。承托件37可以独立于音圈34和第一导向部311,作为连接件设置在音圈34与振动件之间。承托件37也可以与第一导向部311一体成型。
扬声器30工作时,音圈34振动,音圈34振动时,第一导向部311发生弹性变形,由于第一导向部311只能发生沿音圈34轴线方向的弹性变形,可以引导与其连接的音圈34发生沿音圈34轴线方向的振动,防止音圈34发生径向偏移。
在一些实施例中,激励器还包括:磁性组件33,磁性组件33用于生成磁场,音圈34在磁场中沿音圈34的轴线方向振动。
磁性组件33位于音圈34背离振动件的一端。
磁性组件33可以包括第一导磁件331、磁体332和第二导磁件333,其中,第一导磁件331和第二导磁件333可以分别为本领域技术人员熟知的U铁和华司,U铁可以呈具有开口的筒状,磁铁设置在U铁内的底面上;华司设置在磁铁上,磁铁和华司与U铁内壁面之间具有间隙,称为磁气隙。磁性组件33用于在磁气隙中提供一个稳定的磁场,本实施例不对U铁、磁铁以及华司的结构、材质进行限制。
激励器还可以包括支撑件32,支撑件32与磁性组件33连接,第一导向部311背离音圈34的一侧与支撑件32连接。支撑件32的材质可以为钢、铝、锌、塑胶等,其形状可以为板状、也可以是本领域技术人员熟知的盆架状,本实施例不进行限制。
支撑件32与磁性组件33连接,且均位于音圈34背离振动件的一端,可以理解地,激励器背离振动件的一端、磁性组件背离振动件的一端以及支撑件背离振动件的一端可以认为是相同的概念。
在一些实施例中,支撑件32可以为分体式结构,支撑件32包括:第一支撑部321,第一支撑部321围设在磁性组件33外,第一支撑部321与磁性组件33连接;第二支撑部322,第二支撑部322围在第一支撑部321外,第一导向部311背离音圈34的一侧与第二支撑部322连接。
第二支撑部322与第一支撑部321间隔设置,第二支撑部322与第一导向部311连接,音圈34振动时,第一导向部311跟随音圈34发生弹性变形,当音圈34发生振动时,第二支撑部322可以相应的发生沿音圈34轴线方向的移动,提高了第一导向部311的弹性变形能力。
相关技术中,音圈只有弹波一个定心导向点,为进一步防止音圈发生径向移动,在一些实施例中,导向件31还包括:第二导向部312,第二导向部312连接第一支撑部321和第二支撑部322,第二导向部312与第一导向部311沿音圈34的轴线方向间隔设置。第二导向部312的结构和工作原理可以与第一导向部311相同,本实施例不在赘述。
第二导向部312也可以发生沿音圈34轴线方向的弹性变形,使得音圈34可以具有第一导向部311和第二导向部312两个定心导向点。假如音圈34要发生径向移动,音圈34需要带动第二支撑部322移动,且需要同时挤压第一导向部311和第二导向部312中的某一点,音圈34发生径向移动的难度增大,进一步避免音圈34的径向移动,避免扬声器30发出杂音。
在一些实施例中,第一导向部311和/或第二导向部312可以包括沿音圈34的周向间隔设置的多个导向片313。有助于第一导向部311和/或第二导向部312发生弹性变形,降低扬声器30功耗。
导向片313可以类似风扇叶片相对于音圈34轴线翻扭设置,导向片313可以发生沿音圈34轴线方向的弯折变形,而不会发生自身的压缩变形,防止音圈34沿自身径向移动,只要导向片313的径向刚度大于其轴向刚度即可。
在一些实施例中,导向片313还可以呈平板状。其中,为防止音圈34发生径向移动,第二导向部312对应的导向片313可以与音圈34的轴线垂直设置。导向片313可以发生以与第一支撑部321连接一端为支点,与第二支撑部322连接一端发生弯折的轴线变形,有助于音圈34沿自身轴线方向移动;而导向片313不会发生径向的压缩变形,有助于防止音圈34发生径向移动。
与第一导向部311对应的导向片313也可以与音圈34的轴线垂直设置,在一些实施例中,为有助于音圈34发生沿自身轴线方向的移动,与第一导向部311对应的导向片313倾斜设置,导向片313的倾斜角度可以与第二支撑部322沿音圈34轴线方向的延伸高度相关。
在一些实施例中,承托件37、第一导向部311、第一支撑部321、第二支撑部322以及第二导向部312可以一体成型,其材质可以是ABS、聚酰胺(Polyamide,简称PA)与ABS的共聚物、聚碳酸酯(Polycarbonate,简称PC)与ABS的共聚物、高抗 冲聚苯乙烯(High impact polystyrene,简称HIPS)等。
为有助于音圈34可以沿音圈34的轴线方向往复移动,导向片313可以具有缺口,使得导向片313易于发生弹性变形。在一些实施例中,导向片313沿音圈34周向的一个或两个侧边设有减强口314,减强口314沿音圈34的周向延伸。
在一些实施例中,可以只在第一导向部311或者第二导向部312对应的导向片313上设置减强口314,也可以同时在第一导向部311和第二导向部312对应的导向片313上设置减强口314。
可以理解地,可以在第一导向部311对应的部分或者全部导向片313上设置减强口314;可以在第二导向部312对应的部分或者全部导向片313上设置减强口314。
振动件可以是相关技术中薄壁筒状的锥盆,在一些实施例中,为降低扬声器30的厚度,振动件可以为平板状的第一振动板351,音圈34与第一振动板351连接,音圈34的振动传递到第一振动板351,以带动第一振动板351振动,其中,本实施例不限制激励器的结构。
音圈34的端面与第一振动板351之间可以通过粘接件粘接固定;音圈34靠近第一振动板351的一端可以设置翻边结构,翻边结构与第一振动板351贴合设置,增大音圈34与第一振动板351的连接面积,连接可靠。可以理解地,翻边结构可以为上述承托件37,或者翻边结构也可以贴装在承托件37背离振动件的一侧。
音圈34另一端围设在磁体332和第二导磁件333外,音圈34背离第一振动板351的端部与第一导磁件331之间具有第一间距,音圈34内壁面与磁体332和第二导磁件333之间具有第二间距,音圈34外壁面与第一导磁件331之间具有第三间距,第一间距、第二间距和第三间距的大小根据实际需要进行设置。
本实施例提供的显示装置中扬声器30的振动件采用板状结构,振动件沿音圈34轴线方向的厚度相较于相关技术中的锥盆厚度小,也就使得扬声器30的厚度变小,显示装置的厚度变小,且第一振动板351作为箱体的一部分,也能避免扬声器30中设置振动件与箱体的避让间距,扬声器30的厚度小,符合显示装置超薄化的发展趋势。
对于任一平板,在其几何尺寸确定的情况下,其具有无穷多阶的模态频率,平板振动的模态频率公式如下:
Figure PCTCN2021075619-appb-000001
其中,a,b为平板的长和宽,ρ为平板的密度,h为平板的厚度,D为平板的弯曲强度。
平板第一阶模态频率f 11越小,平板发出的声波频率越低,扬声器30的低频声效 果越好。
在一些实施例中,激励器的重量大于第一振动板351的重量,可以理解为给第一振动板351附加了一个振动质量,相当于增大了第一振动板351的等效密度ρ,由公式(1)可知,ρ增大,第一阶模态频率f 11降低,有助于扬声器30激发出声效更好的低频音。也就是本实施例在没有增加第一振动板351质量的情况下,增加了振动系统的等效质量,在不降低声波辐射效率的情况下降低了第一阶模态频率f 11,其中,本实施例提供的显示装置中的扬声器30可以发出100Hz的低频音,满足液晶电视等显示装置的低频音设计需求。
可以理解地,锥盆扬声器在振动件一侧以及背离振动件一侧辐射的声波相位差为180°,两侧的声波相互干涉使得声波削弱,激励器的低频性能下降。在一些实施例中扬声器30的振动件为平板状,扬声器30演变为平板扬声器,基于平板声波辐射的特点,平板两侧辐射出的声波可以叠加使用,扬声器30的声压级高,不存在声短路的问题。
为便于推动空气辐射出更大的声压级,第一振动板351的质量要小;同时,为有利于激发出更低频率的低阶共振模态,并降低扬声器30重量,第一振动板351的厚度要小。当第一振动板351的厚度小于1.5mm时,需要加强第一振动板351的刚度,防止扬声器30变形。在一些实施例中,第一振动板351可以为厚度1mm-1.5mm的纸芯蜂窝板,重量小,强度高。在一些实施例中,图6为第一振动板的结构示意图,请参阅图6,第一振动板351包括:纸芯3511;第一蒙皮3512,第一蒙皮3512覆盖纸芯3511背离音圈34的侧面;第二蒙皮3513,第二蒙皮3513覆盖纸芯3511设置音圈34的侧面,音圈34与第二蒙皮3513连接。
图7为本申请实施例提供的另一扬声器的结构示意图,图8为图7中扬声器的剖视图,图9为本申请实施例提供的另一扬声器的结构示意图,图10为图9中扬声器的剖视图,图11为图10中扬声器的爆炸示意图,图12为边条的结构示意图。
请参阅图7至图12,在一些实施例中,扬声器30还包括:连接片38,连接片38贴装在第一振动板351上,音圈34与连接片38连接。其中,本实施例不限制激励器的结构,本实施例以图7至图12中的激励器结构为例进行说明。
连接片38呈片状贴装在第一振动板351设置音圈34的一侧,或者连接片38可以贴装在第二蒙皮3513上,连接片38与第二蒙皮3513连接面积大,音圈34振动时,第二蒙皮3513受到的振动变小,能避免第二蒙皮3513脱离纸芯3511,防止第二蒙皮3513发生破裂。
在一些实施例中,为使得连接片38的整体能同时与第一振动板351发声振动,连接片38靠近第一振动板351的侧面的整体可以设置粘接件,连接牢靠。
在一些实施例中,连接片38靠近第一振动板351的整个侧面可以涂覆光学胶等粘接件,用于与第一振动板351连接,连接可靠。
当音圈34直接与第一振动板351连接时,音圈34与第一振动板351的连接面积 为音圈34的端面,连接面积小。音圈34往复振动,第一振动板351随音圈34往复振动过程中可能会发生破裂的情况。在一些实施例中,沿音圈34的轴线方向,连接片38在第一振动板351上的投影覆盖音圈34在第一振动板351上的投影,连接片38与第一振动板351的连接面积大,可以降低第一振动板351发生破坏性损伤的可能性,提高扬声器30和显示装置的使用寿命。
在一些实施例中,连接片38可以呈环形,连接片38沿音圈34径向的宽度大于音圈34的厚度,连接片38与第一振动板351的连接面积大。
在一些实施例中,第一振动板351靠近音圈34的侧面设有减厚孔3514,减厚孔3514向背离音圈34的一侧延伸,减厚孔3514的厚度小于等于第一振动板351的厚度。
在一些实施例中,连接片38包括:连接部381,连接部381与第一振动板351靠近音圈34的侧面连接;第二凸出部382,第二凸出部382伸入减厚孔3514,音圈34与第二凸出部382连接,至少部分音圈34伸入减厚孔3514内。
其中,音圈34与第二凸出部382连接,第二凸出部382伸入减厚孔3514内,以使音圈34与第二凸出部382连接的一端能伸入减厚孔3514内,那么扬声器30的厚度就可以降低,降低的具体厚度为音圈34伸入减厚孔3514内的厚度以及连接片38的厚度之和,应用扬声器30的显示装置的厚度也可以降低,符合显示装置超薄化的发展趋势。
在一些实施例中,为防止连接片38相对于第一振动板351发生相对移动,且防止第二凸出部382相对于连接部381发生相对振动,第二凸出部382贴装在减厚孔3514的内表面上,例如可以通过粘接件粘接。并且,由于第一振动板351通常采用纸芯蜂窝板,直接在纸芯蜂窝板上开孔,容易造成孔内强度降低,本实施例通过第二凸出部382贴装在减厚孔3514的内表面上,也可以提高减厚孔3514处的强度。
在一些实施例中,减厚孔3514可以沿垂直于第一振动板351的方向贯穿第一振动板351,易于加工制造。
第二凸出部382可以位于减厚孔3514内,在一些实施例中,第二凸出部382背离音圈34的一侧与第一振动板351背离音圈34的一侧位于同一平面内,连接片38的厚度小于第一振动板351的厚度。音圈34伸入减厚孔3514内部分的高度进一步增加,扬声器30的厚度进一步变小。
为使得连接片38整体能同时发生振动,连接片38的硬度高,避免连接片38自身之间发生相对振动。在一些实施例中,连接片38为金属材质制件,强度高,易于激励器散热,防止扬声器30过热发生故障。示例性地,连接片38的材质可以是铝。
音圈34的端面可以直接与连接片38或者第一振动板351连接,例如通过胶带等粘接件粘贴固定。在一些实施例中,音圈34包括:筒体347;贴合部348,贴合部348与筒体347连接,贴合部348贴装在第一振动板351上。贴合部348可以呈环状并沿音圈34的轴线连续设置,也可以是沿音圈34的周向断续设置的多个翻折片。
贴合部348可以向音圈34轴线的一侧延伸,也可以向背离音圈34轴线的一侧延 伸,贴合部348呈板状贴装在连接片38上,连接面积大,连接稳固。
为减小扬声器30和显示装置的厚度,在一些实施例中可以将第一振动板351作为扬声器30箱体的一部分。扬声器30还包括:第一侧板352a,第一侧板352a和第一振动板351围成容置音圈34的第二容置腔。
第一侧板352a设置在音圈34背离第一振动板351的一侧,且第一侧板352a设置在第一振动板351背离后壳20的一侧。
第一侧板352a可以与第一振动板351呈夹角或者平行设置,本实施例以第一侧板352a和第一振动板351平行为例进行说明。此时扬声器30演变为平板扬声器,平板扬声器还具有第一振动板351两侧声波无反相位的特点,也就是第一振动板351两侧的声波可以叠加使用,不存在声短路的问题。
在一些实施例中,为防止第一振动板351与后壳20碰撞发出杂音,第一振动板351与后壳20之间设有第一避让间隙,支撑件32背离音圈34的一端与第一侧板352a之间设有第二避让间隙。第一避让间隙和第二避让间隙的大小可以根据实际需要进行设置。
在一些实施例中,第一避让间隙和第二避让间隙可以在0.7mm-2mm之间进行选择,以减小扬声器30的厚度为宜。
在一些实施例中,激励器的厚度可以为6mm-9mm,扬声器30的厚度可以是激励器厚度、第二避让间隙以及第一侧板352a厚度之和,也就是本实施例提供的显示装置中的扬声器30厚度可以为7.7mm-12mm,相对于相关技术中厚度为30mm-40mm的扬声器30,本实施例提供的扬声器30厚度降低。
在一些实施例中,扬声器30还包括边条353,边条353连接第一振动板351与第一侧板352a,第一振动板351、第一侧板352a和边条353围成容置音圈34的第二容置腔,边条353与后壳20或显示面板10连接,边条353可以与第一侧板352a、第一振动板351中的任意一者一体成型。
在一些实施例中,还可以进一步通过降低第一振动板351弯曲强度的方式,降低第一振动板351的第一阶模态频率f 11。边条353包括:第一壁面3531,第一壁面3531位于第二容置腔内;第二壁面3532,第二壁面3532与第一壁面3531相对设置;第一壁面3531和第二壁面3532中的至少一者设有减强槽3533。
减强槽3533可以使得边条353发生弹性变形,第一振动板351振动时,第一振动板351可以相对第一侧板352a发生振动,相当于降低第一振动板351的弯曲强度D,从而降低第一振动板351的第一阶模态频率f 11,有助于扬声器30激发出声效更好的低频音。
减强槽3533的个数可以为多个,多个减强槽3533可以沿边条353的长度方向间隔设置。减强槽3533可以设置在第一壁面3531或者第二壁面3532上,也可以同时设置在第一壁面3531和第二壁面3532上,当第一壁面3531和第二壁面3532上均设置减强槽3533时,第一壁面3531上的减强槽3533和第二壁面3532上的减强槽3533 不连通,示例性地,第一壁面3531上的减强槽3533和第二壁面3532上的减强槽3533可以在垂直于第一振动板351的方向上错开设置。
在一些实施例中,减强槽3533可以呈条状并沿边条353的长度方向延伸,减强槽3533的长度可以小于边条353的长度,也可以贯穿边条353位于出音口3535处的端面。第一壁面3531上可以设置一个条状的减强槽3533,第二壁面3532上可以设置两个条状的减强槽3533,三个减强槽3533在沿垂直于第一振动板351的方向上错开设置。
扬声器30工作时,第一振动板351振动,如果边条353发生变形,激励器背离第一振动板351的一端会有与第一侧板352a发生接触、激励器产生杂音的隐患。在一些实施例中,第一振动板351和/或第一侧板352a设有若干彼此朝向对方延伸的支撑杆3534,若干支撑杆3534沿边条353的长度方向间隔设置,边条353上设有与支撑杆3534插接配合的插接孔;支撑杆3534的延伸长度小于第一振动板351和第一侧板352a的间距。
由于支撑杆3534的延伸长度小于第一振动板351和第一侧板352a的间距,也就是支撑杆3534沿垂直于第一振动板351方向的延伸长度小于边条353的厚度,支撑杆3534的自由端未穿过边条353,能避免第一振动板351与支撑杆3534或者第一振动板351上支撑杆3534与第一侧板352a之间发生刚性接触,避免扬声器30生成杂音。
在一些实施例中,支撑杆3534沿垂直于第一振动板351方向的延伸长度与边条353的厚度之差可以为1mm-3mm。这样,既能防止边条353变形,又能使得第一振动板351获得弹性边缘支撑。
在一些实施例中,边条353上还设有出音口3535,出音口3535可以位于后壳20的顶边、侧边、底侧或者设置在后壳20上。
在一些实施例中,出音口3535朝向后壳20的底侧、或者后壳20背离显示面板10的一侧。
由于在一些实施例中第一振动板351同时向第一侧板352a一侧以及后壳20一侧辐射声波,后壳20底侧以及后壳20上辐射的声波可以叠加使用,不存在声短路的问题。
可以理解地,出音口3535的长度根据第一振动板351和第一侧板352a的形状设置,当第一振动板351和第一侧板352a均为圆形时,出音口3535的形状可以是条弧形。
在一些实施例中,第一振动板351和第一侧板352a可以均为矩形,出音口3535可以位于第一振动板351和第一侧板352a的一个长边或短边处。考虑到第一振动板351和第一侧板352a的长边或短边尺寸较大时,会影响第一振动板351和第一侧板352a的振动稳定性,出音口3535处也可以设置多个支撑边条353,多个支撑边条353连接第一振动板351和第一侧板352a,多个支撑边条353间隔设置在出音口3535所在的侧边处,多个支撑边条353上也可以设置减强槽3533以及支撑杆3534,本实施 例不进行限制。
在一些实施例中,边条353为弹性材质制件。弹性材质的边条353可以软化第一振动板351的支撑边缘,降低第一振动板351的弹性系数,也就是降低第一振动板351的弯曲强度D,从而降低第一振动板351的第一阶模态频率f 11,有助于扬声器30激发出声效更好的低频音。
在一些实施例中,边条353的材质可以是硅胶、橡胶等,本实施例不进行限制。
图13为本申请实施例提供的另一扬声器的结构示意图,图14为图13中激励器的结构示意图,图15为图13中激励器的爆炸示意图,图16为图13中第一导磁件的结构示意图,图17为图13中第二段的结构示意图,图18为图13中扬声器的频响曲线图。
请参阅图13至图18,在一些实施例中,第一侧板352a可以与音圈34背离第一振动板351的一端连接,第一侧板352a则可以作为第二振动板352b,音圈34振动时,同时带动第一振动板351和第二振动板352b振动。基于平板声波辐射的特点,平板两侧辐射出的声波可以叠加使用,第一振动板351和第二振动板352b的声波可以叠加使用,声压级高。
相关技术中,激励器背离第一振动板351的一侧与第二振动板352b之间具有间距,防止激励器与第二振动板352b碰撞。在一些实施例中该间距演变为第二振动板352b与第一导磁件331之间的间距,在一些实施例中扬声器30的厚度不会增大。
在一些实施例中,第一振动板351和第二振动板352b可以与音圈34的轴线成任意角度设置,例如,第一振动板351和第二振动板352b可以平行设置,且均与音圈34的轴线垂直设置。
在一些实施例中,第二振动板352b的材质、结构等可以与第一振动板351相同,具体地,为了便于推动空气辐射出更大的声压级,第二振动板352b的质量要小。同时,为有利于激发出更低频率的低阶共振模态,并降低扬声器30的重量,第二振动板352b的厚度要小。进一步地,当第二振动板352b的厚度小于1.5mm时,需要加强第二振动板352b的刚度,防止第二振动板352b变形。
在一些实施例中,第二振动板352b均可以为厚度1mm-1.5mm的纸芯蜂窝板,重量小,强度高。
在一些实施例中,第一振动板351和第二振动板352b可以分别与音圈34的两个端面连接,其中,音圈34可以通过销钉等可拆卸件分别与第一振动板351和第二振动板352b连接,也可以分别通过粘接胶等粘接件粘贴固定。
在一些实施例中,贴合部348可以包括第一翻边345和第二翻边346。当采用粘贴固定方式时,第一翻边345设置在音圈34与第一振动板351连接的一端,第一翻边345与音圈34的轴线垂直设置,第一翻边345贴装在第一振动板351上;音圈34与第二振动板352b连接的一端可以设有第二翻边346设置在音圈34与第二振动板352b连接的一端,第二翻边346与音圈34的轴线垂直设置,第二翻边346贴装在第二振动 板352b上,第一翻边345与第一振动板351之间,以及第二翻边346与第二振动板352b之间的连接面积变大,连接稳定性高。
在一些实施例中,第一导磁件331可以包括承托板3311和侧壁3312,磁体332设置在承托板3311上。承托板3311上可以设置通孔3313,音圈34的一端穿过通孔3313并甚至承托板3311背离侧壁3312的一侧,使得第一振动板351和第二振动板352b可以分别设置在磁性组件33的两侧,避免第一振动板351或第二振动板352b振动时,与磁性组件33发生碰撞干涉。
在一些实施例中,音圈34呈筒状,并穿设在磁气隙中,使得磁体332和华司设置在承托板3311位于音圈34内的部分,音圈34外壁面与侧壁3312之间的间距即为第三间距。
在一些实施例中,音圈34可以为整体式设计,示例性地,音圈34的端部设置沿自身周向间隔设置的凸出部,凸出部的端面可以与第一振动板351或者第二振动板352b连接。
为了提高音圈34与第一振动板351、第二振动板352b的连接稳定性,在一些实施例中,音圈34可以为分体式设计,音圈34包括相连接的第一段341和第二段342,第一背离第二段342的一端与第一振动板351连接,第二段342背离第一段341的一端与第二振动板352b连接;第一段341背离第一振动板351的一端以及第二段342背离第二振动板352b的一端中的一者设有多个第一凸出部343,第一凸出部343穿过通孔3313与另一者连接;多个第一凸出部343沿音圈34的周向间隔设置,每个第一凸出部343均对应一个通孔3313。
在一些实施例中,第一凸出部343背离音圈34轴线的外壁面可以与第一段341和第二段342中另一者的外壁面或者内壁面贴合设置,连接面积大,第一段341和第二段342的连接可靠性高。其中,第一段341和第二段342之间可以通过销钉等可拆卸件连接,也可以通过粘接胶等粘接件粘接,本实施例不进行限制。
在一些实施例中,第一凸出部343沿音圈34轴线方向的延伸长度可以大于承托板3311的厚度,避免音圈34振动时第一端或者第二段342与承托板3311发生碰撞干涉。通孔3313的个数可以与第一凸出部343一一对应,或者多个第一凸出部343可以共用一个通孔3313,只要通孔3313与第一凸出部343之间具有滑动间隙,防止音圈34振动时第一凸出部343与通孔3313之间发生碰撞即可。
在一些实施例中,导向件31可以是相关技术中的弹波,弹波的个数可以是一个,弹波设置在第一导磁件331的任一侧。
在一些实施例中的音圈34穿过通孔3313并延伸至承托板3311背离侧壁3312的另一侧,音圈34沿自身轴线方向的高度变大,相应的,弹波的个数也可以是多个。
在一些实施例中,扬声器30包括第一弹波315和第二弹波316,第一弹波315和第二弹波316分别设置在侧壁3312沿音圈34轴线方向的两端;第一弹波315设有第一定心孔,第二弹波316设有第二定心孔,音圈34与第一振动板351连接一端的壁面 与第一定心孔的孔壁接触,音圈34与第二振动板352b连接一端的壁面与第二定心孔的孔壁接触。第一定心孔、第二定心孔以及音圈34同轴心设置,音圈34振动时,音圈34的两端分别受到第一定心孔和第二定心孔的约束,导向性高,避免音圈34发生径向偏移。
在一些实施例中,导向件31还可以包括第一导向部311和第二导向部312,第一导向部311连接音圈34的一端与第二支撑部322,第二导向部312连接音圈34的另一端与第二支撑部322,第一导向部311和第二导向部312中的任一者可以相对于音圈34的轴线倾斜设置,也可以与音圈34的轴线垂直设置。
平板的模态特征为,在低频段,低阶共振模态频率稀疏,在高频段,高阶共振模态频率密集。由于低阶共振模态频率稀疏,会导致低频段的频响曲线出现深谷,扬声器30的低频效果不理想
且基于平板声波辐射的特点,平板两侧辐射出的声波可以叠加使用,第一振动板351和第二振动板352b的声波可以叠加使用,例如低频段的叠加使用。为优化扬声器30低频性能,在一些实施例中,第一振动板351和第二振动板352b可以具有不同的共振模态频率。
以第一振动板351的共振模态频率为f 1、f 2、f 3、f 4、f 5......,第二振动板352b的共振模态频率为f a、f b、f c、f d、f e......为例进行说明,由于第一振动板351和第二振动板352b的共振模态频率不同,第一振动板351和第二振动板352b同时工作时,扬声器30的共振模态频率为f 1、f a、f 2、f b、f 3、f c、f 4、f d、f 5、f e......,实现了扬声器30低频模态频率更加密集化的设计,请参阅图18,使得扬声器30频响曲线的低频段更滑平滑,改善扬声器30的低频性能。
根据公式(1)可知,只要第一振动板351和第二振动板352b的长度、宽度、厚度、材质密度、材质刚度中的任意一者或多者不同,第一振动板351和第二振动板352b的共振模态频率不同。为便于加工制造,在一些实施例中,第一振动板351和第二振动板352b的材质可以相同,即材质密度和材质刚度相同,第一振动板351和第二振动板352b的厚度也可以相同,只要第二振动板352b在第一振动板351上的投影位于第一振动板351内即可。
在一些实施例中,以第一振动版和第二振动板352b均为矩形板为例,第二振动板352b的长度、宽度中的一者和两者可以对应的小于第一振动板351的长度、宽度。为便于说明,第一振动板351的长度和宽度可以为a 1、b 1,第二振动板352b的长度和宽度可以分别为a 2、b 2,只要满足a 2<a 1,b 2<b 1或者a 2<a 1、b 2<b 1即可。
在一些实施例中,0.7a 1<a 2≦0.9a 1,0.7b 1<b 2≦0.9b 1
在一些实施例中,边条353连接第一振动板351和第二振动板352b,边条353、第一振动板351和第二振动板352b围成容置音圈34的第二容置腔,使得第一振动板351和第二振动板352b构成第二容置腔的壁面。
相关技术中,平板扬声器的激励器位于箱体内,激励器背离振动板的端面与箱体 背离振动板的侧板之间具有间距,防止激励器与箱体碰撞。在一些实施例中,音圈34与背离第一振动板351的第二振动板352b连接,该间距演变为第二振动板352b与承托板3311之间的间距,本实施例扬声器30的厚度不会增大。
在一些实施例中,为便于第一振动板351和第二振动板352b与边条353连接的位置处发生沿音圈34轴线方向的往复振动;在一些实施例中边条353包括:第一折边3536,第一折边3536与第一振动板351垂直设置;第二折边3537,第二折边3537与第一折边3536垂直设置,第二折边3537与第一折边3536靠近第二振动板352b的一侧连接,第二振动板352b与第二折边3537连接,至少部分第二折边3537伸出第二振动板352b外,出音口3535设置在第一折边3536上。
在一些实施例中,第二振动板352b与第二折边3537搭接,第二振动板352b和第二折边3537连接后可以与第一振动板351形状相同。
在一些实施例中,第二这边和第一折边3536的材质可以相同或者不同,第二折边3537可以为塑胶板或铝板,第一折边3536可以为塑胶板或铝板。
图19为本申请实施例提供的另一扬声器的结构示意图,图20为本申请实施例提供的另一扬声器的结构示意图,图21为本申请实施例提供的另一扬声器的结构示意图。
请参阅图19至图21,在一些实施例中,音圈34可以不与箱体上音圈背离振动件的侧板连接,即扬声器30还包括:箱体,音圈34、导向件31位于箱体内;箱体包括第二侧板361,第二侧板361设置在音圈34背离振动件的一侧。为减小扬声器30和显示装置的厚度,第二侧板361上设有第一避让孔3611,至少部分磁性组件33背离振动件的一端位于第一避让孔3611内。
第一避让孔3611的形状可以是方形、圆形等,只要满足第一避让孔3611的孔径大于磁性组件33的周向尺寸,防止磁性组件33与第二侧板361发生碰撞即可。
可以理解地,磁性组件33背离振动组件一端的端面可以与第二侧板361靠近振动件的侧面位于同一平面,或者该端面可以位于第一避让孔3611内,扬声器30不必设置激励器与第二侧板361之间的避让间距,扬声器30的厚度变小,显示装置的厚度变小。
在一些实施例中,第一避让孔3611贯穿第二侧板361,磁性组件33背离振动件的端面与第二侧板361背离振动件的侧面位于同一平面内。扬声器30的厚度即为激励器厚度和振动件的厚度之和,相对于相关技术中的扬声器30,本申请提供的扬声器30厚度减小了第二侧板361的厚度以及磁性组件33与第二侧板361之间的避让间距,扬声器30的厚度小,显示装置的厚度小。
扬声器30安装于显示装置内,扬声器30的第二侧板361可以与水平面垂直,此时,激励器一端与振动件连接,激励器另一端伸入第一避让孔3611内且是自由端,激励器会在重力作用下发生偏移,导致扬声器30产生杂音。
在一些实施例中,扬声器30还包括:弹性连接件362,弹性连接件362连接第一避让孔3611与磁性组件33背离振动件的一端。可以理解地,弹性连接件362连接第 一避让孔3611和磁性组件33,弹性连接件362的个数可以是多个,并沿第一避让孔3611的周向间隔设置,任一弹性连接件362均可以将激励器连接于第一避让孔3611上,防止激励器偏心。
在一些实施例中,弹性连接件362可以呈片状或板状等,避免占用扬声器30的厚度空间。
在一些实施例中,弹性连接件362的材质可以是橡胶、编织布、聚氨基甲酸酯(Polyurethane,简称PU)或者相关技术中弹波采用的任一材质。弹性连接件362的弹性力可以使得激励器跟随振动组件振动,使用方便。
在一些实施例中,弹性连接件362呈环状,环状的弹性连接件362封闭第一避让孔3611,连接可靠。
其中,为防止弹性连接件362在自身弹力作用下凸出第二侧板361,增加扬声器30的厚度,在一些实施例中,弹性连接件362可以为平板状,或者弹性连接件362向振动件的一侧凹陷呈弧状。
在一些实施例中,扬声器30还包括:子侧板363,子侧板363位于第一避让孔3611处,子侧板363背离振动件的子侧面与第二侧板361背离振动件的侧面位于同一平面内;子侧板363设有第二避让孔3631,磁性组件33背离振动件的一端与第二避让孔3631连接,弹性连接件362连接第一避让孔3611与子侧板363。
子侧板363可以对激励器起到定心支撑作用,子侧板363还可以作为振动件,在激励器振动时,子侧板363振动生成声波,有助于扬声器30辐射出更多的声波,提高声波的声压级。
子侧板363通过弹性连接件362与第一避让孔3611连接,其中,子侧板363的形状可以为方形、圆形等,本实施例不进行限制。子侧板363的材质可以与第二侧板361的材质相同,可以是纸芯蜂窝板。
子侧板363上还设有连接磁性组件33的第二避让孔3631,第二避让孔3631可以贯穿子侧板363,使得扬声器30的厚度可以维持为激励器厚度与第二侧板361厚度之和,扬声器30厚度小,显示装置的厚度小。
在一些实施例中,本申请还提供一种扬声器30,其包括:音圈34;振动件,振动件与音圈34连接,音圈34带动振动件振动;导向件31,导向件31与音圈34连接,导向件31能在音圈34振动时发生沿音圈34轴线方向的弹性变形。
其中,扬声器30的结构、工作原理以及有益效果均在上述实施例中进行了描述,本实施例不再赘述。
在一些实施例中,扬声器30可以应用于液晶电视、等离子电视、显示器等显示装置中,用于播放声音。
在一些实施例中,导向件31与音圈34直接相连,音圈34振动时,导向件31跟随音圈34发生沿音圈34轴线方向的弹性变形,导向件31始终不会与振动件发生碰撞,也就是当导向件31与支撑件32或磁性组件33之间的间隙与相关技术中的间隙维持一 样时,至少导向件31与振动件之间的间隙降低,扬声器30的厚度变小,显示装置的厚度变小。
本说明书中各实施例或实施方式采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分相互参见即可。
在本说明书的描述中,参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述各实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (20)

  1. 一种显示装置,包括:
    显示面板,所述显示面板用于显示图像;
    后壳,所述后壳承托所述显示面板,所述后壳和所述显示面板围成第一容置腔;
    扬声器,所述扬声器位于所述第一容置腔内,所述扬声器包括导向件和音圈,所述导向件与所述音圈相连;所述导向件能在所述音圈振动时发生沿所述音圈轴线方向的弹性变形。
  2. 根据权利要求1所述的显示装置,所述扬声器还包括振动件,所述振动件与所述音圈沿轴线方向的一端连接;
    导向件包括第一导向部,所述第一导向部围在所述音圈外,所述第一导向部与所述音圈靠近所述振动件的一端连接,所述第一导向部向背离所述音圈轴线的一侧延伸。
  3. 根据权利要求2所述的显示装置,所述扬声器还包括承托件,所述承托件贴装在所述振动件上,所述音圈与所述承托件背离所述振动件的一侧连接;所述第一导向部与所述承托件连接。
  4. 根据权利要求2所述的显示装置,所述扬声器还包括:
    磁性组件,所述磁性组件用于生成磁场,所述音圈在所述磁场中沿所述音圈的轴线方向振动;
    支撑件,所述支撑件与所述磁性组件连接,所述第一导向部背离所述音圈的一侧与所述支撑件连接。
  5. 根据权利要求4所述的显示装置,所述支撑件包括:
    第一支撑部,所述第一支撑部围设在所述磁性组件外,所述第一支撑部与所述磁性组件连接;
    第二支撑部,所述第二支撑部围在所述第一支撑部外,所述第一导向部背离所述音圈的一侧与所述第二支撑部连接。
  6. 根据权利要求5所述的显示装置,所述导向件还包括:
    第二导向部,所述第二导向部连接所述第一支撑部和所述第二支撑部,所述第二导向部与所述第一导向部沿所述音圈的轴线方向间隔设置。
  7. 根据权利要求6所述的显示装置,所述第一导向部和/或所述第二导向部包括沿所述音圈的周向间隔设置的多个导向片。
  8. 根据权利要求7所述的显示装置,所述导向片沿所述音圈周向的一个或两个侧边设有减强口,所述减强口沿所述音圈的周向延伸。
  9. 根据权利要求1-8任一项所述的显示装置,所述振动件为平板状的第一振动板,所述音圈与所述第一振动板连接,所述音圈的振动传递到所述第一振动板,以带动所述第一振动板振动。
  10. 根据权利要求9所述的显示装置,所述第一振动板包括:
    纸芯;
    第一蒙皮,所述第一蒙皮覆盖所述纸芯背离所述音圈的侧面;
    第二蒙皮,所述第二蒙皮覆盖所述纸芯设置所述音圈的侧面,所述音圈与所述第二蒙皮连接。
  11. 根据权利要求9所述的显示装置,所述扬声器还包括:
    第一侧板,所述第一侧板设置在所述音圈背离所述第一振动板的一侧,且所述第一侧板设置在所述第一振动板背离所述后壳的一侧;
    边条,所述边条连接所述第一振动板与所述第一侧板,所述第一振动板、所述第一侧板和所述边条围成容置所述音圈的第二容置腔,所述边条与所述后壳或所述显示面板连接。
  12. 根据权利要求11所述的显示装置,所述第一振动板与所述后壳之间设有第一避让间隙。
  13. 根据权利要求11所述的显示装置,所述边条包括:
    第一壁面,所述第一壁面位于所述第二容置腔内;
    第二壁面,所述第二壁面与所述第一壁面相对设置;
    所述第一壁面和所述第二壁面中的至少一者设有减强槽。
  14. 根据权利要求11所述的显示装置,所述第一振动板和/或所述第一侧板设有若干彼此朝向对方延伸的支撑杆,若干所述支撑杆沿所述边条的长度方向间隔设置,所述边条上设有与所述支撑杆插接配合的插接孔;
    所述支撑杆的延伸长度小于所述第一振动板和所述第一侧板的间距。
  15. 根据权利要求11所述的显示装置,所述边条上还设有出音口,所述出音口朝向所述后壳的底侧、或者所述后壳背离所述显示面板的一侧。
  16. 根据权利要求4-8任一项所述的显示装置,所述扬声器还包括:
    箱体,所述音圈、所述导向件位于所述箱体内;所述箱体包括第二侧板,所述第二侧板设置在所述音圈背离所述振动件的一侧;
    所述第二侧板上设有第一避让孔,至少部分所述磁性组件背离所述振动件的一端位于所述第一避让孔内。
  17. 根据权利要求16所述的显示装置,所述第一避让孔贯穿所述第二侧板,所述磁性组件背离所述振动件的端面与所述第二侧板背离所述振动件的侧面位于同一平面内。
  18. 根据权利要求17所述的显示装置,所述扬声器还包括:
    弹性连接件,所述弹性连接件连接所述第一避让孔与所述磁性组件背离所述振动件的一端。
  19. 根据权利要求18所述的显示装置,所述扬声器还包括:
    子侧板,所述子侧板位于所述第一避让孔处,所述子侧板背离所述振动件的子侧面与所述第二侧板背离所述振动件的侧面位于同一平面内;
    所述子侧板设有第二避让孔,所述磁性组件背离所述振动件的一端与所述第二避让孔连接,所述弹性连接件连接所述第一避让孔与所述子侧板。
  20. 一种扬声器,包括:
    音圈;
    振动件,所述振动件与所述音圈连接,所述音圈带动所述振动件振动;
    导向件,所述导向件与所述音圈连接,所述导向件能在所述音圈振动时发生沿所述音圈轴线方向的弹性变形。
PCT/CN2021/075619 2020-02-06 2021-02-05 显示装置和扬声器 WO2021155847A1 (zh)

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CN1802032A (zh) * 2004-12-28 2006-07-12 日本电气株式会社 平板扬声器的安装构造和安装方法、振动板、平板扬声器和电子设备
CN202488696U (zh) * 2012-03-07 2012-10-10 歌尔声学股份有限公司 微型扬声器
CN108513228A (zh) * 2018-06-25 2018-09-07 歌尔股份有限公司 扬声器及便携终端
CN208609175U (zh) * 2018-07-30 2019-03-15 广州斐诺电子科技有限公司 一种u杯中部调音的外磁扬声器
CN211860538U (zh) * 2020-02-06 2020-11-03 海信视像科技股份有限公司 显示装置和扬声器

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CN1802032A (zh) * 2004-12-28 2006-07-12 日本电气株式会社 平板扬声器的安装构造和安装方法、振动板、平板扬声器和电子设备
CN202488696U (zh) * 2012-03-07 2012-10-10 歌尔声学股份有限公司 微型扬声器
CN108513228A (zh) * 2018-06-25 2018-09-07 歌尔股份有限公司 扬声器及便携终端
CN208609175U (zh) * 2018-07-30 2019-03-15 广州斐诺电子科技有限公司 一种u杯中部调音的外磁扬声器
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