WO2019227646A1 - 头戴耳机 - Google Patents

头戴耳机 Download PDF

Info

Publication number
WO2019227646A1
WO2019227646A1 PCT/CN2018/097369 CN2018097369W WO2019227646A1 WO 2019227646 A1 WO2019227646 A1 WO 2019227646A1 CN 2018097369 W CN2018097369 W CN 2018097369W WO 2019227646 A1 WO2019227646 A1 WO 2019227646A1
Authority
WO
WIPO (PCT)
Prior art keywords
shielding
balance
shielding member
earphone
force
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/097369
Other languages
English (en)
French (fr)
Inventor
赵忠旭
张喜乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Techology Co Ltd
Original Assignee
Goertek Techology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Techology Co Ltd filed Critical Goertek Techology Co Ltd
Publication of WO2019227646A1 publication Critical patent/WO2019227646A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/105—Earpiece supports, e.g. ear hooks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers

Definitions

  • the invention relates to the technical field of earphones, and in particular to a headphone.
  • the user's tightness when wearing is different.
  • the different tightness of wearing will affect the connection between the human ear and the headset body. It is fixedly connected to the headset body.
  • an object of the present invention is to provide a headphone that can automatically balance the sound quality when the degree of tightness of wearing is different, so as to improve the consistency of low-frequency effects.
  • the present invention provides the following technical solutions:
  • a headphone includes two earphone bodies connected through a connecting member, a casing of the earphone body is provided with a leak hole, and the connecting member is provided with a shielding member for covering the leak hole; the connecting member A balancer is provided between the earphone body and the earphone body to provide a balance force to balance the clamping force of the connecting member, and the balancer changes the balance force by changing the degree of deformation to drive the shielding member relative to the
  • the leakage hole reciprocates; the shielding area of the leakage hole decreases when the clamping force generated by the connection member becomes smaller, and the shielding area of the leakage hole increases when the clamping force generated by the connection member becomes larger .
  • the connecting member includes a curved band, and two ends of the curved band are respectively connected to the shielding members provided in the two earphone bodies, and the balancing member is connected to the shielding member and the shielding member.
  • An elastic piece between the earphone body, the elastic piece can generate an elastic force directed to the shielding member away from the human ear to balance the clamping force of the connecting member.
  • the length of the curved belt is adjustable.
  • the curved belt includes a curved belt body and a bracket slidably connected to an end of the curved belt body, and the bracket can be fixed relative to the curved belt body when the curved belt is at a preset length.
  • the shielding member is connected to the bracket.
  • the bracket is fixedly connected to the shielding member through a bracket fixing shaft
  • the shielding member is provided in the housing
  • the housing is provided with two guide holes opposite to each other, and the guide holes penetrate the housing, Two ends of the fixed shaft of the bracket are correspondingly slidably inserted into the two guide holes.
  • the elastic piece is a concave elastic piece opened toward the shielding member, and both free ends of the elastic piece are fixedly connected to the shielding member.
  • a middle portion of the elastic piece is fixedly connected to a face cover in the earphone body, the face cover is fixedly connected to the housing, and the elastic piece and the curved band are respectively provided on the shielding member during movement. In both directions.
  • a side surface of the shielding member is attached to an inner surface of the casing.
  • the balancing member is a magnetic component
  • the magnetic component includes a first permanent magnet fixed on the shielding member and a second permanent magnet fixed on the housing, and the second permanent magnet can The first permanent magnet generates a magnetic repulsive force directed away from the human ear to balance the clamping force of the connecting member.
  • the shielding member can partially shield the leakage hole.
  • the headphone provided by the present invention includes two earphone bodies connected by a connecting member, and a casing of the earphone body is provided with a leak hole.
  • the connecting member is provided with a shielding member for shielding the leakage hole.
  • a balancing member is provided between the connecting member and the housing.
  • the balancing member can provide a balancing force to balance the clamping force of the connecting member, thereby realizing the force balance of the connecting member.
  • the balancing member changes the degree of deformation to change the balancing force, thereby driving The shutter is reciprocated relative to the leak hole.
  • the balancing member adaptively changes the balancing force provided to the connecting member, so that the connecting member is again balanced by the force.
  • the deformation degree of the balancing member changes and blocks.
  • the position of the part relative to the leak hole will change accordingly.
  • the balancing force of the balance piece becomes larger and the shielding area of the leakage hole decreases; when the clamping force becomes smaller, the balancing force of the balance piece becomes smaller and the shielding area of the leakage hole increases.
  • the deformation degree of the balance member and the position of the shielding member will be determined when the connecting member, the shielding member and the earphone body reach the state of force balance again.
  • a rear cavity of the earphone is formed between a casing in the earphone body and a face cover fixed to the casing.
  • the shield can reach a force-balanced state and stand still with respect to the housing, and the clamping force generated by the connecting component toward the head is maintained at a stable value.
  • the force of the balancer on the earphone body becomes smaller, the pressure of the earphone body on the human ear becomes smaller, the wearing becomes loose, and the seal between the human ear and the earphone body
  • the low-frequency part is weakened due to poor performance, and the low-frequency effect of the leak hole shielding area becomes small and the low-frequency effect can be offset to reduce the low-frequency effect between the human ear and the earphone body, thereby balancing the sound quality.
  • the clamping force generated by the connecting member becomes large, the initial equilibrium state is broken, the deformation degree of the balancer changes and the balance force is increased, and the shutter moves relative to the housing to reach a state of force balance again.
  • the shielding area of the leak hole is increased, thereby reducing the low-frequency effect. Accordingly, the force of the balancer on the earphone body is increased, the pressure of the earphone body on the human ear is increased, the wearing is tightened, and the distance between the human ear and the earphone body is increased.
  • the tightness is improved and the low-frequency part is lifted up, and the low-frequency effect of the leak hole blocking area is enlarged and weakened can offset the low-frequency effect lifted between the human ear and the earphone body, thereby balancing the sound quality.
  • the force balance position of the shielding member can be adjusted according to the clamping force generated by the connecting member, thereby adjusting the shielding of the leakage hole by the shielding member.
  • Area, and the change in the low-frequency effect caused by the change in the blocking area of the leak hole by the shield can offset the low-frequency effect change between the human ear and the earphone body.
  • the headphones adjusted by force, the headphones of the present invention can automatically balance the sound quality of the headphones, no matter whether the headphones are loosened or tightened, the low-frequency effect of the headphones can be maintained under a preset effect.
  • FIG. 1 is a schematic diagram of a headset provided in the present invention in a loosely worn state
  • FIG. 2 is an enlarged view of A in FIG. 1; FIG.
  • FIG. 3 is a cross-sectional view of a headphone body of the headphone provided in the present invention in a loosely worn state
  • FIG. 4 is a schematic diagram of a headphone provided in the present invention in a tightly worn state
  • FIG. 5 is an enlarged view of B in FIG. 4; FIG.
  • FIG. 6 is a cross-sectional view of a headphone body of the headphone provided in the present invention in a tightly worn state.
  • the core of the present invention is to provide a headphone, which can automatically balance the sound quality when the tightness of wearing is different, so as to improve the consistency of the low-frequency effect.
  • FIG. 1 includes two earphone bodies, and the two earphone bodies are connected by a connecting member.
  • the casing 5 of the earphone body is provided with a leakage hole 8, and the leakage hole 8 can communicate with the inner and outer sides of the casing 5.
  • the earphone body may further include an ear cover 4 and a face cover fixed to the housing 5.
  • the face cover is disposed between the ear cover 4 and the housing 5.
  • the ear cover 4 and the housing 5 may be specifically detachably connected.
  • a rear cavity of the earphone is formed between the casing 5 and the face cover.
  • the connecting member is provided with a shielding member 7 for shielding the leakage hole 8.
  • a balancer is provided between the connection member and the earphone body, and the balancer can provide a balance force to balance the clamping force of the connection member.
  • the balancing member changes the balance force by changing the deformation degree, so that the shielding member 7 can be reciprocated relative to the leakage hole 8. Accordingly, the shielding area of the leakage member 8 by the shielding member 7 will change.
  • the connecting member in the wearing state of the headphone, the connecting member generates a clamping force, which is directed toward the human ear.
  • the balance member can generate a reaction force to the connecting member to balance the clamping force.
  • the reaction force That is the balance force of the balancer.
  • the clamping force can be transmitted to the earphone body through the balance between the earphone body and the connecting part.
  • connection becomes tighter, and the tightness between the earphone body and the human ear becomes better; when the clamping force becomes smaller, the pressure of the earphone body on the human ear becomes smaller, and the connection between the earphone body and the human ear becomes loose.
  • the tightness between the human ears deteriorates.
  • the connecting members have the same length and different wearers, the larger the distance between the ears of the wearer, the greater the clamping force generated by the connecting member; the smaller the distance between the ears of the wearer, the smaller the clamping force generated by the connecting member.
  • the positional relationship between the shielding member 7 and the leakage hole 8 should be set corresponding to the direction in which the clamping force drives the shielding member 7 to move.
  • the balance member changes the balance force by changing the deformation degree.
  • the position of the shielding member 7 changes with the deformation of the balance member.
  • the change in the low-frequency effect caused by the change in the shielding area of the leak hole 8 can offset the low-frequency effect change between the human ear and the headphone body. It can automatically balance the sound quality of the headphones. Whether the headphone is loosened or tightened, the headphone can be made.
  • the low frequency effect of wearing headphones is kept under a preset effect. Among them, the preset effect of the sound quality of the headset can be set according to actual needs, and can be specifically achieved through the selection of the balance piece.
  • the connecting member may include a curved band, and two ends of the curved band may be respectively connected to the shielding member 7 provided in the two earphone bodies, and the elastic member 9 is connected between the shielding member 7 and the earphone body.
  • the shrapnel 9 is convenient to install and has low cost.
  • the elastic piece 9 can generate an elastic force directed to the shielding member 7 away from the human ear to balance the clamping force of the connecting members.
  • the elastic piece 9 is a balance piece, and the elastic force of the elastic piece 9 is a balance force.
  • the direction away from the human ear refers to the direction from the inside of the human body to the outside of the human body, which is opposite to the direction of the clamping force of the connecting part at the human ear.
  • the curved belt may be an adjustable curved belt, so that the wearer can adjust the length of the curved belt according to the required degree of tightness.
  • the shield 7 can reach a force-balanced state and stand still with respect to the housing 5, and the clamping force generated by the connecting component is maintained at a stable value.
  • the clamping force generated by the curved band becomes smaller, and the elastic force of the elastic sheet 9 to the shutter 7 in the initial equilibrium state is greater than that of the shutter 7 at this time. Clamping force, the deformation degree of the elastic piece 9 is reduced, and the shielding member 7 moves away from the human ear under the action of the elastic force and the clamping force, so as to reach a state of force balance again. The shielding area of the shielding member 7 for the leakage hole 8 is reduced.
  • the clamping force generated by the curved band becomes larger, and the elastic force of the elastic piece 9 on the shielding member 7 in the initial equilibrium state is smaller than the shielding member 7 at this time.
  • the deformation degree of the elastic piece 9 increases and the shielding member 7 moves closer to the human ear under the action of the elastic force and the clamping force, so as to reach a state of force balance again.
  • the shielding area of the shielding member 7 against the leakage hole 8 If the pressure increases, the back cavity pressure of the earphones increases, and the low-frequency effect weakens.
  • the elasticity of the shrapnel 9 on the earphone body becomes larger, the pressure of the earphone body on the human ear becomes larger, and the wearing becomes firmer.
  • the enhanced tightness causes the low-frequency part to be lifted, and the low-frequency effect weakened by the increased blocking area of the leak hole 8 can offset the low-frequency effect lifted between the human ear and the earphone body, thereby balancing the sound quality.
  • the curved belt may include a curved belt body 1 and a bracket 2 slidably connected to an end of the curved belt body 1, and a shielding member 7 is connected to the bracket 2.
  • the bracket 2 can be slidably inserted into the curved belt body 1, and the adjustment of the length of the curved belt is realized by pulling out the bracket 2 from the curved belt body 1 or inserting it back into the curved belt body 1, and the adjustment is convenient.
  • the bracket 2 may be slidably connected to a slide rail provided outside the curved belt body 1.
  • the bracket 2 can also be slidably sleeved outside the curved body 1.
  • the bracket 2 can be fixed relative to the curved belt body 1 when the curved belt is at a preset length.
  • the fixation here refers to the adjustment of the curved belt to a preset length and wearing, in addition to the interaction force with the head and In the case of gravity without other external force, the bracket 2 will not automatically slide relative to the curved belt body 1 to ensure that the connecting component can provide a reliable clamping force.
  • the preset length may be one value; there may also be at least two values, for example, it may be any value within a length range.
  • the relative fixation between the bracket 2 and the curved belt body 1 can be achieved specifically through friction between the two.
  • the bracket 2 and the curved belt body 1 can also be locked by snapping, additional locking members, or other methods.
  • the implementation is relatively fixed.
  • the bracket 2 can be fixedly connected to the shielding member 7 through the bracket fixing shaft 3, the shielding member 7 can be disposed in the casing 5, the casing 5 can protect the shielding member 7, and can avoid affecting the headgear due to the setting of the shielding member 7.
  • the appearance of headphones may be provided with two guide holes 6 opposite to each other, the guide holes 6 penetrate the housing 5, and two ends of the bracket fixing shaft 3 may be respectively slidably inserted into the two guide holes 6.
  • the guide hole 6 can play a guiding role to guide and limit the moving direction of the shielding member 7.
  • the guide hole 6 may be a waist-shaped hole to reduce the impact between the guide hole 6 and the bracket fixing shaft 3.
  • the bracket 2 can be connected to an end of the bracket fixing shaft 3 protruding from the casing 5, and the shield 7 inside the casing 5 can be connected to the bracket 2 outside the casing 5 through the bracket fixing shaft 3.
  • the bracket 2 may be provided as a Y-shaped frame, one end of which is connected to the curved belt body 1 and the other ends are respectively connected to both ends of the bracket fixing shaft 3.
  • the length of the curved belt can be adjusted in other ways.
  • the curved belt may include several curved belt sections spliced in sequence, and adjacent belt curved sections may be detachably connected, and the length of the curved belt may be adjusted by selecting the number of curved belt sections that are put into stitching.
  • the curved band can be set as a component with certain elasticity to ensure the reliable clamping of the earphone body to the human ear.
  • the elastic sheet 9 may be a concave elastic sheet opening toward the shielding member 7, and both free ends of the elastic sheet 9 are fixedly connected to the shielding member 7.
  • the elastic sheet 9 and Setting two connection points between the shielding members 7 can improve the smoothness of the movement of the shielding members 7.
  • the middle part of the elastic piece 9 may be fixedly connected to the face cover in the earphone body, and the face cover is fixedly connected to the housing 5.
  • the elastic piece 9 and the curved band are respectively provided on both sides of the shielding member 7 in the moving direction.
  • the elastic piece 9 balances the clamping force of the curved belt on the shielding piece 7 by providing the shielding piece 7 with a thrust force pointing away from the human ear.
  • the elastic piece 9 and the shielding piece 7 are in order.
  • curved belt, the curved belt and the elastic sheet 9 are respectively disposed on both sides of the shielding member 7 to prevent interference between the curved belt and the elastic sheet 9, and a reasonable use of space can be realized.
  • the side of the shielding member 7 can be attached to the side wall of the casing 5.
  • the side wall of the casing 5 can play a certain guiding role on the shielding member 7 to improve the shielding
  • the smoothness of the movement of piece 7. it is also possible to improve the smoothness of the movement of the shutter 7 by additionally providing a guide rail slidingly connected to the shutter 7 in the housing 5.
  • the manner of setting the balancer is not limited to the manner provided by the above embodiments.
  • a compression spring may be connected between the connection member and the housing 5.
  • the compression spring can provide the connection member with an elastic force pointing away from the human ear, and the elastic connection between the connection member and the housing 5 is achieved by the compression spring.
  • the balancing member may be a magnetic component.
  • the magnetic component may specifically include a first permanent magnet fixed to the shielding member 7 and a second permanent magnet fixed to the housing 5.
  • the second permanent magnet can generate a magnetic repulsive force directed to the first permanent magnet away from the human ear to balance it. Gripping force of connected parts.
  • the magnetic component changes the degree of deformation of the balancer by changing the distance between the first permanent magnet and the second permanent magnet.
  • the magnetic repulsive force between the first permanent magnet and the second permanent magnet is the equilibrium force.
  • the clamping force becomes larger, the clamping force is greater than the thrust force of the magnetic component on the shielding member 7 in the initial equilibrium state, and the shielding member 7 and the first permanent magnet are close to the second permanent magnet until the clamping force is opposite the magnetic component.
  • the thrust of the shielding component is balanced again, the shielding area of the shielding member 7 against the leakage hole 8 becomes larger, and the low-frequency effect is weakened. Accordingly, the sealing between the human ear and the headphone body is improved to raise the low-frequency effect, thereby balancing the sound quality.
  • the clamping force becomes smaller, the clamping force is smaller than the thrust force of the magnetic component on the shielding member 7 in the initial equilibrium state, and the shielding member 7 and the first permanent magnet are far away from the second permanent magnet until the clamping force is blocked by the magnetic component.
  • the thrust of the component is balanced again, the shielding area of the shielding member 7 against the leakage hole 8 becomes smaller, and the low-frequency effect is raised. Accordingly, the sealing between the human ear and the earphone body is deteriorated, which weakens the low-frequency effect, thereby balancing the sound quality.
  • the balancing member that changes the balance force by changing the deformation degree is not limited to being realized by elastic structures such as springs, springs 9 and the like, and can also be realized by magnetic members.
  • the first permanent magnet and the second permanent magnet need not be directly connected to each other, which can reduce a certain space occupation and have a longer service life.
  • the shielding member 7 may be a rectangular block. At this time, in each earphone body, the shielding member 7 is disposed on the side of the leakage hole 8 away from the human ear.
  • the shielding member 7 It can also be disc-shaped or other structures.
  • the shielding member 7 may be a hollow structure or a solid structure.
  • the shielding member 7 can be made of wood, plastic or other hard materials.
  • the shielding member 7 may also include at least two shielding sections, and each shielding section is connected to the end of a curved belt for synchronous movement. In addition, each shielding section can control one respectively. Leak holes can also control a leak hole together.
  • the shielding member may be configured to partially block the leakage hole, that is, when the shielding area of the leakage member 8 by the shielding member 7 is the largest, the leakage hole 8 Still ventilated to ensure the sound quality of the headphones.
  • a ventilation groove 10 may be provided on the surface of the shielding member 7, and the ventilation groove 10 may be used to ensure ventilation of the leakage hole 8 when the shielding area of the leakage hole 8 is maximized.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)

Abstract

本发明公开了一种头戴耳机，包括通过连接部件连接的两个耳机本体，耳机本体的壳体上设有泄露孔，连接部件设有用于遮挡泄露孔的遮挡件；连接部件与耳机本体之间设有用于提供平衡力以平衡连接部件的夹持力的平衡件，且平衡件通过改变形变程度来改变平衡力，以带动遮挡件相对于泄露孔往复运动；在连接部件产生的夹持力变小时泄露孔的遮挡面积减小，在连接部件产生的夹持力变大时泄露孔的遮挡面积增大。相对现有技术中泄露孔不可随连接部件的支持力而调节的耳机，该头戴耳机中，连接部件与壳体之间设有平衡件，使遮挡件的位置可根据连接部件产生的夹持力进行调整，可自动平衡头戴耳机的音质，使头戴耳机在佩戴松紧程度不同时低频效果可保持一致。

Description

头戴耳机
本发明要求于2018年05月30日提交中国专利局、申请号为201810576901.3、申请名称为“头戴耳机”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
技术领域
本发明涉及耳机技术领域，具体涉及一种头戴耳机。
背景技术
目前的头戴耳机，因用户使用方法及佩戴需求的不同，用户在佩戴时的松紧度会有差异，佩戴的松紧程度不同会影响人耳与耳机本体之间的衔接程度，固定连接于耳机本体的弯带的夹持力越小，耳机本体对人耳的压力越小，佩戴的越松弛，耳机本体与人耳之间的密封性越差，耳机本体中的声音越容易向外泄露，尤其是低频部分损失较大，从而导致在佩戴的松紧程度不同时不能得到一致的低频效果，影响耳机的音质。
因此，如何提高头戴耳机在佩戴松紧程度不同时低频效果的一致性，是本领域技术人员目前需要解决的技术问题。
发明内容
有鉴于此，本发明的目的是提供一种头戴耳机，能够在佩戴松紧程度不同时自动平衡音质，以提高低频效果的一致性。
为实现上述目的，本发明提供如下技术方案：
一种头戴耳机，包括通过连接部件连接的两个耳机本体，所述耳机本体的壳体上设有泄露孔，所述连接部件设有用于遮挡所述泄露孔的遮挡件；所述连接部件与所述耳机本体之间设有用于提供平衡力以平衡所述连接部件的夹持力的平衡件，且所述平衡件通过改变形变程度来改变平衡力，以带动所述遮挡件相对于所述泄露孔往复运动；在所述连接部件产生的夹持力变小时所述泄露孔的遮挡面积减小，在所述连接部件产生的夹持力变大时所述泄露孔的遮挡面积增大。
优选地，所述连接部件包括弯带，所述弯带的两端分别对应连接于两个所述耳机本体中设置的所述遮挡件，所述平衡件为连接于所述遮挡件与所述耳机本体之间的弹片，所述弹片能够对所述遮挡件产生指向远离人耳方向的弹力以平衡所述连接部件的夹持力。
优选地，所述弯带的长度可调。
优选地，所述弯带包括弯带本体和滑动连接于所述弯带本体的端部的支架，所述支架能够在所述弯带处于预设长度时相对于所述弯带本体固定，所述遮挡件连接于所述支架。
优选地，所述支架通过支架固定轴固定连接所述遮挡件，所述遮挡件设于所述壳体内，所述壳体相对设有两个导向孔，所述导向孔贯穿所述壳体，所述支架固定轴的两端分别对应滑动插接于两个所述导向孔中。
优选地，所述弹片为朝向所述遮挡件开口的凹形弹片，所述弹片的两个自由端均 固定连接所述遮挡件。
优选地，所述弹片的中部固定连接于所述耳机本体中的面盖上，所述面盖固定连接于所述壳体，所述弹片与所述弯带分别设于所述遮挡件在运动方向上的两侧。
优选地，所述遮挡件的侧面贴合于所述壳体的内表面。
优选地，所述平衡件为磁性组件，所述磁性组件包括固定于所述遮挡件上的第一永磁体和固定于所述壳体的第二永磁体，所述第二永磁体能够对所述第一永磁体产生指向远离人耳方向的磁性斥力，以平衡所述连接部件的夹持力。
优选地，遮挡件能够对所述泄露孔进行部分遮挡。
本发明所提供的头戴耳机包括通过连接部件连接的两个耳机本体，耳机本体的壳体上设有泄露孔。连接部件设有遮挡件，遮挡件用于遮挡泄露孔。连接部件与壳体之间设有平衡件，该平衡件能够提供平衡力以平衡连接部件的夹持力，从而实现连接部件的受力平衡，平衡件通过改变形变程度以改变平衡力，进而带动遮挡件相对于泄露孔往复运动。当连接部件的夹持力发生变化时，平衡件会适应性地改变向连接部件提供的平衡力，以使连接部件再一次受力平衡，与此同时，由于平衡件的形变程度发生改变，遮挡件相对于泄露孔的位置也会相应发生变化。当夹持力变大时，平衡件的平衡力相应变大，泄露孔的遮挡面积减小；当夹持力变小时，平衡件的平衡力相应变小，泄露孔的遮挡面积增大。平衡件的形变程度、遮挡件的位置会在连接部件、遮挡件以及耳机本体再次达到受力平衡状态时确定下来。
在头戴耳机中，耳机本体中的壳体和固定于壳体的面盖之间形成耳机后腔。本领域的技术人员所知道的是，泄露孔的遮挡面积变大，耳机后腔中的低频振幅受到的抑制增加，低频效果会减弱；相反地，泄露孔的遮挡面积变小，耳机后腔中的低频振幅受到的抑制减小，低频效果会抬升。
在佩戴该头戴耳机后，遮挡件能够达到受力平衡状态并相对于壳体静止，连接部件产生的指向头部的夹持力维持在一个稳定的值。
此时，若连接部件产生的夹持力变小，初始平衡状态被打破，平衡件形变程度改变并减小平衡力，遮挡件相对于壳体运动以再次达到受力平衡的状态，遮挡件对泄露孔的遮挡面积减小，从而抬升低频效果；相应地，平衡件作用于耳机本体的力变小，耳机本体对人耳的压力变小，佩戴变松弛，人耳与耳机本体之间的密封性变差而使低频部分减弱，泄露孔遮挡面积变小而抬升的低频效果可以抵消人耳与耳机本体之间减弱的低频效果，从而平衡音质。
相反地，若连接部件产生的夹持力变大，初始平衡状态被打破，平衡件形变程度改变并增大平衡力，遮挡件相对于壳体运动以再次达到受力平衡的状态，遮挡件对泄露孔的遮挡面积增大，从而减弱低频效果；相应地，平衡件作用于耳机本体的力增大，耳机本体对人耳的压力变大，佩戴变紧实，人耳与耳机本体之间的密封性变好而使低频部分抬升，泄露孔遮挡面积变大而减弱的低频效果可以抵消人耳与耳机本体之间抬升的低频效果，从而平衡音质。
可见，该头戴耳机中，由于连接部件与壳体之间设有平衡件，遮挡件的受力平衡 位置可以根据连接部件产生的夹持力进行调整，从而调整了遮挡件对泄露孔的遮挡面积，而遮挡件对泄露孔遮挡面积的变化导致的低频效果变化能够抵消人耳与耳机本体之间的低频效果变化，相比于现有技术中泄露孔的遮挡面积不可随连接部件的夹持力而调节的耳机，本发明中的头戴耳机可以自动平衡头戴耳机的音质，无论头戴耳机佩戴变松还是变紧，均可以使头戴耳机的低频效果保持在一个预设效果下。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，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，还可以根据提供的附图获得其他的附图。
图1为本发明所提供头戴耳机在松弛佩戴状态下的示意图；
图2为图1中A处放大图；
图3为本发明所提供头戴耳机在松弛佩戴状态下的耳机本体剖面图；
图4为本发明所提供头戴耳机在紧实佩戴状态下的示意图；
图5为图4中B处放大图；
图6为本发明所提供头戴耳机在紧实佩戴状态下的耳机本体剖面图。
图1至图6中，1-弯带本体，2-支架，3-支架固定轴，4-耳套，5-壳体，6-导向孔，7-遮挡件，8-泄露孔，9-弹片，10-通气凹槽。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一件分实施例，而不是全件的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的核心是提供一种头戴耳机，能够在佩戴松紧程度不同时自动平衡音质，以提高低频效果的一致性。
本发明所提供头戴耳机的一种具体实施例中，请参考图1，包括两个耳机本体，两个耳机本体通过连接部件连接。耳机本体的壳体5上设有泄露孔8，泄露孔8可以连通壳体5内外两侧。具体地，耳机本体还可以包括耳套4和固定于壳体5的面盖，面盖设置在耳套4与壳体5之间，耳套4与壳体5具体可以可拆卸连接，喇叭组件设置在该面盖处。壳体5与面盖之间形成耳机后腔。
连接部件设有用于遮挡泄露孔8的遮挡件7。连接部件与耳机本体之间设有平衡件，该平衡件可以提供平衡力以平衡连接部件的夹持力。其中，该平衡件通过改变形变程度来改变平衡力，从而能够带动遮挡件7相对于泄露孔8往复运动，相应地，遮挡件7对泄露孔8的遮挡面积会改变。
其中，头戴耳机在佩戴状态下，连接部件会产生夹持力，该夹持力是指向人耳方向的， 平衡件可以对该连接部件产生一个平衡该夹持力的反力，该反力即为平衡件的平衡力。同时，该夹持力可以通过耳机本体与连接部件之间的平衡件传递至耳机本体，当该夹持力变大时，耳机本体对人耳的压力变大，耳机本体与人耳之间的衔接变紧密，耳机本体与人耳之间的密封性变好；当该夹持力变小时，耳机本体对人耳的压力变小，耳机本体与人耳之间的衔接变松弛，耳机本体与人耳之间的密封性变差。在连接部件长度相同而佩戴者不同的情况下，佩戴者两耳间距越大，连接部件产生的夹持力越大；佩戴者两耳间距越小，连接部件产生的夹持力越小。同一佩戴者在连接部件长度不同的情况下佩戴时，连接部件长度越小，连接部件产生的夹持力越大；连接部件长度越大，连接部件产生的夹持力越小。
具体地，在连接部件产生的夹持力变小时，平衡力变小，泄露孔8的遮挡面积减小；在连接部件产生的夹持力变大时，平衡力变大，泄露孔8的遮挡面积增大。
其中，遮挡件7与泄露孔8之间的位置关系应对应于夹持力带动遮挡件7运动的方向进行设置。
平衡件通过改变形变程度来改变平衡力，平衡力随着夹持力的变化而变化时，遮挡件7的位置会随着平衡件的形变而发生改变。泄露孔8遮挡面积的变化导致的低频效果变化能够抵消人耳与耳机本体之间的低频效果变化，可以自动平衡头戴耳机的音质，无论头戴耳机佩戴变松还是变紧，均可以使头戴耳机的低频效果保持在一个预设效果下。其中，头戴耳机音质的预设效果可以根据实际需要进行设置，具体可以通过平衡件的选择实现。
具体地，连接部件可以包括弯带，该弯带的两端可以分别对应连接于两个耳机本体中设置的遮挡件7，遮挡件7与耳机本体之间连接有弹片9。弹片9安装方便，且成本较低。
其中，弹片9能够对遮挡件7产生指向远离人耳方向的弹力以平衡连接部件的夹持力，该弹片9即为平衡件，弹片9的弹力即为平衡力。对于每一个人耳，远离人耳的方向指的是在人耳处由体内指向体外的方向，该方向与该人耳处连接部件的夹持力方向相反。
优选地，弯带可以为长度可调的弯带，从而可以使佩戴者可以根据所需的松紧程度调整弯带的长度。
在佩戴该头戴耳机后，遮挡件7可以达到受力平衡状态并相对于壳体5静止，连接部件产生的夹持力维持在一个稳定的值。
对于该佩戴者，请参考图1至图3，若增长该弯带，弯带产生的夹持力变小，弹片9对遮挡件7在初始平衡状态时的弹力大于此时遮挡件7受到的夹持力，弹片9的形变程度减小且遮挡件7在弹力与夹持力的作用下远离人耳运动，以再次达到受力平衡的状态，遮挡件7对泄露孔8的遮挡面积减小，耳机后腔空气泄露变大，低频效果抬升；相应地，弹片9对耳机本体的弹力减小，耳机本体对人耳的压力减小，佩戴变松弛，人耳与耳机本体之间的密封性变差使低频部分减弱，泄露孔8遮挡面积变小而抬升的低频效果可以抵消人耳与耳机本体之间减弱的低频效果，从而平衡音质。
相反地，对于该佩戴者，请参考图4至图6，若缩短该弯带，弯带产生的夹持力变大，弹片9对遮挡件7在初始平衡状态的弹力小于此时遮挡件7受到的夹持力，弹片9的形变程度增大且遮挡件7在弹力与夹持力的作用下靠近人耳运动，以再次达到受力平衡的状态，遮挡件7对泄露孔8的遮挡面积增大，耳机后腔压力增大，低频效果减弱；相应地，弹片 9对耳机本体的弹力变大，耳机本体对人耳的压力变大，佩戴变紧实，人耳与耳机本体之间的密封性增强使低频部分抬升，泄露孔8遮挡面积增大而减弱的低频效果可以抵消人耳与耳机本体之间抬升的低频效果，从而平衡音质。
在上述实施例的基础上，弯带可以包括弯带本体1和滑动连接于该弯带本体1的端部的支架2，遮挡件7连接于该支架2。可选地，支架2可以滑动插接于弯带本体1之内，通过将支架2从弯带本体1中抽出或插回弯带本体1实现对弯带长度的调节，调节方便。又或者，支架2也可以滑动连接在弯带本体1外部设置的滑道上。再者，支架2也可以滑动套设在弯带本体1之外。
同时，支架2能够在弯带处于预设长度时相对于弯带本体1固定，此处的固定指的是弯带调整到预设长度并佩戴后，除了与头部之间的相互作用力以及重力而没有其他外力作用的情况下，支架2不会相对于弯带本体1自动滑动，以保证连接部件能够提供可靠的夹持力。其中，预设长度可以为一个值；也可以有至少两个值，例如，可以为一段长度范围内的任一个值。另外，支架2与弯带本体1之间的相对固定具体可以通过两者之间的摩擦力实现，当然，支架2与弯带本体1之间还可以通过卡接、另外设置锁定件或者其他方式实现相对固定。
进一步地，支架2可以通过支架固定轴3固定连接遮挡件7，遮挡件7可以设置在壳体5内，壳体5可以保护遮挡件7，且可以避免因遮挡件7的设置而影响头戴耳机的外观。壳体5上可以相对设有两个导向孔6，导向孔6贯穿壳体5，支架固定轴3的两端可以分别对应滑动插接于两个导向孔6中。导向孔6可以起到导向作用，以对遮挡件7的运动方向进行导向与限定。优选地，该导向孔6可以为腰形孔，以减小导向孔6与支架固定轴3之间的撞击。
另外，支架2可以连接在支架固定轴3伸出于壳体5外的端部，通过支架固定轴3实现壳体5内部的遮挡件7与壳体5外部的支架2的连接。优选地，支架2可以设置为Y形架，其一端连接于弯带本体1，另两端分别连接于支架固定轴3的两端。
当然，弯带的长度可调也可以通过其他方式实现。例如，弯带可以包括若干段依次拼接的弯带部，相邻弯带部之间均可拆卸连接，通过对投入拼接的弯带部的数量选择实现对弯带长度的调节。另外，弯带可以设置为具有一定的弹性的部件，以保证耳机本体对人耳的可靠夹紧。
在上述设有弹片9的任一实施例的基础上，弹片9具体可以为朝向遮挡件7开口的凹形弹片，该弹片9的两个自由端均固定连接于遮挡件7上，弹片9与遮挡件7之间设置两个连接点，可以提高遮挡件7运动的平稳性。
进一步地，弹片9的中部可以固定连接于耳机本体中的面盖上，面盖固定连接于壳体5，弹片9与弯带分别设于遮挡件7在运动方向上的两侧，此时，弹片9通过向遮挡件7提供指向远离人耳方向的推力来平衡弯带对遮挡件7的夹持力，对于每个耳机本体，沿着远离人耳的方向，依次为弹片9、遮挡件7和弯带，弯带与弹片9分别设置在遮挡件7的两侧可以避免弯带与弹片9之间发生干涉，可实现对空间的合理利用。
在上述任一实施例的基础上，遮挡件7的侧面可以贴合于壳体5的侧壁，此时，壳体5的侧壁可以对遮挡件7起到一定的导向作用，从而提高遮挡件7运动的平稳性。当然， 也可以通过在壳体5中另外上设置与遮挡件7滑动连接的导轨以提高遮挡件7运动的平稳性。
显然，平衡件的设置方式不限于以上各个实施例所提供的方式。
例如，连接部件与壳体5之间可以连接有压簧，压簧能够对连接部件提供指向远离人耳的方向的弹力，通过压簧实现连接部件与壳体5之间的弹性连接。
又或者，平衡件可以为磁性组件。该磁性组件具体可以包括固定于遮挡件7的第一永磁体和固定于壳体5的第二永磁体，第二永磁体能够对第一永磁体产生指向远离人耳方向的磁性斥力，以平衡连接部件的夹持力。其中，该磁性组件通过第一永磁体与第二永磁体之间间距的改变实现平衡件形变程度的改变。第一永磁体与第二永磁体之间的磁性斥力即为平衡力。
具体地，在夹持力变大时，夹持力大于初始平衡状态下磁性组件对遮挡件7的推力，遮挡件7与第一永磁体靠近第二永磁体，直至夹持力与磁性组件对遮挡组件的推力再次平衡，遮挡件7对泄露孔8的遮挡面积变大，低频效果减弱，相应地，人耳与耳机本体之间的密封性变好而抬升低频效果，从而平衡音质。
相反地，在夹持力变小时，夹持力小于初始平衡状态下磁性组件对遮挡件7的推力，遮挡件7与第一永磁体远离第二永磁体，直至夹持力与磁性组件对遮挡组件的推力再次平衡，遮挡件7对泄露孔8的遮挡面积变小，低频效果抬升，相应地，人耳与耳机本体之间的密封性变差而减弱低频效果，从而平衡音质。
可见，通过改变形变程度来改变平衡力的平衡件不限于通过弹簧、弹片9等弹性结构实现，还可以通过磁性件实现。由于在本实施例中，第一永磁体与第二永磁体之间无需直接接触连接，能够减少一定的空间占用，且使用寿命较长。
在上述任一实施例的基础上，遮挡件7具体可以为一个矩形块，此时，在每个耳机本体中，遮挡件7设置在泄露孔8远离人耳的一侧，当然，遮挡件7还可以为圆盘状或者其他结构。另外，遮挡件7可以为空心结构，也可以为实心结构。此外，遮挡件7可以选用木质件、塑料件或者其他较硬质的材料制成。又或者，在一个耳机本体中，遮挡件7也可以包括至少两个遮挡分部，各遮挡分部均连接于一个弯带的端部以同步运动，此外，各遮挡分部可以分别对应控制一个泄露孔，也可以共同控制一个泄露孔。
在上述任一实施例的基础上，请参考图2和图6，遮挡件可以设置为能够对泄露孔进行部分遮挡，即，在遮挡件7对泄露孔8的遮挡面积最大时，泄露孔8仍通气，从而可以保证头戴耳机的音质。具体地，遮挡件7的表面上可以设有通气凹槽10，该通气凹槽10可以用于在泄露孔8的遮挡面积最大时保证泄露孔8通气。
本说明书中各个实施例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件分互相参见即可。
以上对本发明所提供的头戴耳机进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种头戴耳机，包括通过连接部件连接的两个耳机本体，所述耳机本体的壳体(5)上设有泄露孔(8)，其特征在于，所述连接部件设有用于遮挡所述泄露孔(8)的遮挡件(7)；所述连接部件与所述耳机本体之间设有用于提供平衡力以平衡所述连接部件的夹持力的平衡件，且所述平衡件通过改变形变程度来改变平衡力，以带动所述遮挡件(7)相对于所述泄露孔(8)往复运动；在所述连接部件产生的夹持力变小时所述泄露孔(8)的遮挡面积减小，在所述连接部件产生的夹持力变大时所述泄露孔(8)的遮挡面积增大。
  2. 根据权利要求1所述的头戴耳机，其特征在于，所述连接部件包括弯带，所述弯带的两端分别对应连接于两个所述耳机本体中设置的所述遮挡件(7)，所述平衡件为连接于所述遮挡件(7)与所述耳机本体之间的弹片(9)，所述弹片(9)能够对所述遮挡件(7)产生指向远离人耳方向的弹力以平衡所述连接部件的夹持力。
  3. 根据权利要求2所述的头戴耳机，其特征在于，所述弯带的长度可调。
  4. 根据权利要求3所述的头戴耳机，其特征在于，所述弯带包括弯带本体(1)和滑动连接于所述弯带本体(1)的端部的支架(2)，所述支架(2)能够在所述弯带处于预设长度时相对于所述弯带本体(1)固定，所述遮挡件(7)连接于所述支架(2)。
  5. 根据权利要求4所述的头戴耳机，其特征在于，所述支架(2)通过支架固定轴(3)固定连接所述遮挡件(7)，所述遮挡件(7)设于所述壳体(5)内，所述壳体(5)相对设有两个导向孔(6)，所述导向孔(6)贯穿所述壳体(5)，所述支架固定轴(3)的两端分别对应滑动插接于两个所述导向孔(6)中。
  6. 根据权利要求2所述的头戴耳机，其特征在于，所述弹片(9)为朝向所述遮挡件(7)开口的凹形弹片，所述弹片(9)的两个自由端均固定连接所述遮挡件(7)。
  7. 根据权利要求6所述的头戴耳机，其特征在于，所述弹片(9)的中部固定连接于所述耳机本体中的面盖上，所述面盖固定连接于所述壳体(5)，所述弹片(9)与所述弯带分别设于所述遮挡件(7)在运动方向上的两侧。
  8. 根据权利要求1所述的头戴耳机，其特征在于，所述遮挡件(7)的侧面贴合于所述壳体(5)的内表面。
  9. 根据权利要求1所述的头戴耳机，其特征在于，所述平衡件为磁性组件，所述磁性组件包括固定于所述遮挡件(7)上的第一永磁体和固定于所述壳体(5)的第二永磁体，所述第二永磁体能够对所述第一永磁体产生指向远离人耳方向的磁性斥力，以平衡所述连接部件的夹持力。
  10. 根据权利要求1至9任意一项所述的头戴耳机，其特征在于，遮挡件(7)能够对所述泄露孔(8)进行部分遮挡。
PCT/CN2018/097369 2018-05-30 2018-07-27 头戴耳机 Ceased WO2019227646A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810576901.3 2018-05-30
CN201810576901.3A CN108769854B (zh) 2018-05-30 2018-05-30 头戴耳机

Publications (1)

Publication Number Publication Date
WO2019227646A1 true WO2019227646A1 (zh) 2019-12-05

Family

ID=64000256

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/097369 Ceased WO2019227646A1 (zh) 2018-05-30 2018-07-27 头戴耳机

Country Status (2)

Country Link
CN (1) CN108769854B (zh)
WO (1) WO2019227646A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112511940B (zh) * 2020-11-27 2022-08-16 歌尔科技有限公司 一种降噪效果自动调节装置和一种主动降噪耳机
CN115515049B (zh) * 2022-10-21 2025-06-27 歌尔科技有限公司 声泄露补偿方法、装置、设备及计算机可读存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201263210Y (zh) * 2008-06-30 2009-06-24 刘金勇 头戴式耳机
US20160360990A1 (en) * 2015-06-15 2016-12-15 Edward Lafe Altshuler Electrode holding device
US20170026736A1 (en) * 2015-07-23 2017-01-26 Cotron Corporation Circumaural earphone
CN107147968A (zh) * 2017-07-14 2017-09-08 歌尔科技有限公司 一种头戴式耳机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330766B (zh) * 2007-09-07 2011-07-27 宁波艾克赛尔电子有限公司 可调节夹持力的耳机
US9016607B2 (en) * 2013-01-07 2015-04-28 Dongguan Pengteng Hardware Electronic Co., Ltd. Multi-stage retractable cord winder device
CN203883963U (zh) * 2013-12-25 2014-10-15 衡阳加一电子科技有限公司 头戴式耳机
CN203761561U (zh) * 2014-02-11 2014-08-06 青岛歌尔声学科技有限公司 头戴式耳机声腔的均压系统及头戴式耳机
CN204425585U (zh) * 2015-02-10 2015-06-24 全南三扬电子有限公司 一种耳机的耳罩自动复位结构
EP3089474B1 (en) * 2015-04-29 2018-06-13 Harman International Industries, Incorporated Adjustable opening headphones

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201263210Y (zh) * 2008-06-30 2009-06-24 刘金勇 头戴式耳机
US20160360990A1 (en) * 2015-06-15 2016-12-15 Edward Lafe Altshuler Electrode holding device
US20170026736A1 (en) * 2015-07-23 2017-01-26 Cotron Corporation Circumaural earphone
CN107147968A (zh) * 2017-07-14 2017-09-08 歌尔科技有限公司 一种头戴式耳机

Also Published As

Publication number Publication date
CN108769854A (zh) 2018-11-06
CN108769854B (zh) 2019-05-17

Similar Documents

Publication Publication Date Title
US10715900B2 (en) Headphone earcup
US8411893B2 (en) Headphone
KR102817383B1 (ko) 스마트 헤드 마운트 기기
US10609467B1 (en) Head wearable equipment with adjustable bone-conductive acoustic device
US20210116724A1 (en) Glasses
US12309542B2 (en) Intelligent head-mounted apparatus
US9084055B2 (en) Audio listening system
KR101561070B1 (ko) 하부 행거를 구비하는 이어폰
KR102817385B1 (ko) 스마트 헤드 마운트 기기
EP3637794A1 (en) Head wearable equipment with adjustable bone-conductive acoustic device
WO2019227646A1 (zh) 头戴耳机
CN203181168U (zh) 耳罩可转动式耳机
JP3193854U (ja) カナル型イヤホンマイクアセンブリ
CN205081916U (zh) 耳挂式耳机
CN205081918U (zh) 耳挂式耳机
CN206506672U (zh) 滑动臂及头戴式耳机
KR101382528B1 (ko) 이어팁 및 이어폰
JP6863687B2 (ja) イヤホン
CN223182257U (zh) 一种入耳与骨传导相结合的耳机
CN206759679U (zh) 入耳式耳机
KR101152652B1 (ko) 고음질 이어폰
WO2015129935A1 (ko) 이어팁 및 이어폰
KR101085964B1 (ko) 이어폰용 이어피스
CN217883788U (zh) 一种非入耳式无线耳罩耳机
CN221995600U (zh) 一种新型智能骨传导防失真的蓝牙耳机

Legal Events

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

Ref document number: 18920959

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18920959

Country of ref document: EP

Kind code of ref document: A1