WO2018006570A1 - 冰箱及其音响结构 - Google Patents

冰箱及其音响结构 Download PDF

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Publication number
WO2018006570A1
WO2018006570A1 PCT/CN2016/113931 CN2016113931W WO2018006570A1 WO 2018006570 A1 WO2018006570 A1 WO 2018006570A1 CN 2016113931 W CN2016113931 W CN 2016113931W WO 2018006570 A1 WO2018006570 A1 WO 2018006570A1
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WIPO (PCT)
Prior art keywords
mounting panel
acoustic
refrigerator
hole
sound
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PCT/CN2016/113931
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English (en)
French (fr)
Inventor
丰炳东
李高杰
王栋
岳跃周
杨东亚
王洁
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青岛海尔股份有限公司
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Publication of WO2018006570A1 publication Critical patent/WO2018006570A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics

Definitions

  • the invention relates to a household appliance, in particular to a refrigerator and an acoustic structure thereof.
  • the refrigerator as a container that keeps the food constant and cold, has become one of the essential household appliances in modern homes.
  • users are increasingly demanding the intelligentization of refrigerators.
  • the present invention provides an acoustic structure for a refrigerator, comprising: a mounting panel for connecting with a door body or a cabinet of the refrigerator; and an audio body disposed on the mounting panel a gap exists between the sound body and the back surface of the mounting panel; wherein the mounting panel is provided with a plurality of through holes, and in the radial direction of the through holes, from the inside to the outside, the through The cross-sectional area of the hole gradually increases.
  • the mounting panel is further provided with a plurality of non-through holes having the same outer shape as the through holes.
  • the acoustic structure further includes a microphone, and the microphone and the sound body are disposed on a same side of the mounting panel.
  • the acoustic structure further includes a cylindrical surrounding portion that is open at both ends, and is located between the acoustic body and the mounting panel for improving the directivity of the sounding of the acoustic body.
  • the sound body is disposed at an end opening of the enclosure.
  • an inner diameter of the port of the enclosure near the side of the sound body is greater than or equal to an outer diameter of the sound body.
  • the mounting panel is embedded on the door or the refrigerator body, and the front surface thereof is located on the same plane as the outer surface of the refrigerator door body or the box body.
  • the acoustic structure for a refrigerator of the present invention designs the through hole from the inside to the outside in the radial direction of the through hole, and the cross-sectional area of the through hole is gradually increased, so that the sound emitted by the speaker body is enlarged and spread out at a wide angle or the user is made
  • the scattered sound that is emitted is focused on the microphone through the small hole, so that the display plays the sound and the microphone receives the sound better.
  • FIG. 1 is a schematic view showing the structure of a refrigerator equipped with the acoustic structure provided by the present invention
  • Figure 2 is a cross-sectional view showing an acoustic structure in an embodiment of the present invention
  • Figure 3 is a partial enlarged view of the second through hole of Figure 2;
  • Figure 4 is a partial enlarged view of the first through hole of Figure 2;
  • first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other.
  • first through hole may be referred to as a second through hole, and similarly the second through hole may also be referred to as a first through hole, without departing from the scope of protection of the present application.
  • orientations described herein are all referenced to the state in which the acoustic structure is normally mounted on the refrigerator.
  • the front surface of the mounting panel that is, the side surface of the mounting panel facing the outside of the refrigerator
  • the back surface of the mounting panel That is, the side surface of the mounting panel facing the inside of the refrigerator.
  • the acoustic structure 100 of the present invention includes a mounting panel 10, an acoustic body 20 and a microphone 30 that are disposed on the back side of the mounting panel 10.
  • the mounting panel 10 is used to connect to the refrigerator door body 4 or the cabinet 5.
  • the mounting panel 10 is embedded in the refrigerator door body 4 or the box body 5, and the front surface thereof and the outer surface of the refrigerator door body 4 or the box body 5 are located. Located on the same plane.
  • the acoustic structure 100 is disposed on the side of the refrigerator door body 4, and the height is substantially equal to the head position when the adult is standing.
  • the sound body 20 is usually powered by a small built-in battery, and the external power is not large.
  • the sound waves emitted by the sound body 20 are scattered and spread around, and the direction of the sound wave is deviated from the user's position (the user's position means normal)
  • the user may be in a high altitude position.
  • the upwardly propagating sound waves must be reflected by the wall multiple times to enter the human ear, and the attenuation is severe, which directly affects the user's listening effect.
  • the acoustic structure 100 further includes a cylindrical enclosure 40 that is open at both ends between the acoustic body 20 and the mounting panel 10 for enhancing the directivity of the acoustic body.
  • the acoustic body 20 is disposed at an opening of the end portion of the enclosure portion 40, and an inner diameter of the port of the enclosure portion 40 adjacent to the audio body 20 is greater than or equal to an outer diameter of the acoustic body 20.
  • the through holes are arranged in an array on the mounting panel 10 and cover the mounting panel 10 Most areas.
  • the mounting panel 11 is provided with a plurality of through holes and a plurality of non-through holes 13.
  • the through holes and the non-through holes 13 have the same outer shape, and the through holes increase the permeability between the sound body 20 and the external environment, facilitating sound to the refrigerator.
  • the outer portion propagates, and the cross-sectional area of the through hole gradually increases from the inside to the outside in the radial direction of the through hole, and the inside to the outside refers to the outside from the inside of the refrigerator to the outside of the refrigerator.
  • the non-through holes 13 have a dustproof effect, and can also be combined into a random shape by a dot array of non-through holes 13, and the shape is beautiful.
  • the through hole includes a first through hole 11 and a second through hole 12 , and the first through hole 11 is disposed at least in a region corresponding to the surrounding portion 40 of the mounting panel 10 , due to the surrounding portion 40
  • the gathering effect most of the sound waves emitted by the sound body 20 are concentrated in the range of the surrounding portion 40, and the first through hole 11 is disposed in the radial direction of the through hole from the inside to the outside, and the cross-sectional area of the through hole is gradually increased.
  • the design can make the sound emitted by the sound body 20 widen and spread out at a wide angle, and the user can hear better sound effects.
  • the first through hole 11 may also be disposed only in a region where the mounting panel 10 is located in the surrounding portion 40.
  • the second through hole is disposed at least in a region corresponding to the microphone 30 of the mounting panel 10.
  • the second through hole 12 is disposed from the inside to the outside in the radial direction of the through hole, and the cross-sectional area of the second through hole is gradually increased. This design allows the user to distribute the scattered sound and focus it through the small hole to the microphone.
  • a gap 50 exists between the acoustic body 20 and the back surface of the mounting panel 10.
  • the acoustic body 20 and the mounting panel 10 are spaced apart. Since the acoustic body 20 and the mounting panel 10 have a safe distance, an electromagnetic compatibility experiment is performed in the refrigerator, and when static electricity is applied to the front surface of the mounting panel 10, the acoustic body 20 is less likely to be electrostatically coupled. In order to ensure the experimental accuracy of the electromagnetic compatibility experiment. If the distance between the gaps 50 is too small, it is difficult to prevent electrostatic coupling. If the distance is too large, it means that the overall thickness of the acoustic structure is increased. When installing, it will occupy more space for the insulation layer of the refrigerator, affecting the insulation performance of the refrigerator, and the gap 50 is preferred. It is 7-10 mm.
  • the installation of the mounting panel 10 is easy to resonate with the mounting panel 10, affecting the sound quality, and the spacing between the audio body 20 and the mounting panel 10 is beneficial to suppress resonance generation, and the sound can be improved.
  • the sound quality of the structure since the acoustic body 20 is accompanied by vibration during use, the installation of the mounting panel 10 is easy to resonate with the mounting panel 10, affecting the sound quality, and the spacing between the audio body 20 and the mounting panel 10 is beneficial to suppress resonance generation, and the sound can be improved.
  • the sound quality of the structure since the acoustic body 20 is accompanied by vibration during use, the installation of the mounting panel 10 is easy to resonate with the mounting panel 10, affecting the sound quality, and the spacing between the audio body 20 and the mounting panel 10 is beneficial to suppress resonance generation, and the sound can be improved.
  • the sound quality of the structure since the acoustic body 20 is accompanied by vibration during use, the installation of the mounting panel 10 is easy to resonate with the mounting panel 10, affecting the sound quality, and the spacing between the audio body 20 and the
  • the invention separates the sound body 20 and the mounting panel 10, and is not easy to generate electrostatic coupling when the refrigerator is subjected to electromagnetic compatibility experiment, which is beneficial to ensure the experimental precision, and also avoids the resonance of the sound body 20 with the mounting panel 10 during use, affecting the sound quality.
  • the surrounding portion 40 has the function of gathering sound, and can improve the directivity of the sound emitted by the acoustic body 20, and obtain a better listening effect.
  • the enclosure 40 extends from the back of the mounting panel 10 to the front surface of the acoustic body 20, and the enclosure 40 extends from the back of the mounting panel 10, ie, and is mounted.
  • the panel 110 has an integral structure, which can facilitate the injection molding of the enclosure 40 and the mounting panel 10, and the enclosure 40 is in contact with the acoustic body 20, and the two are closely matched to form a single-sided opening (the first through hole 11 on the mounting panel 10)
  • the sound absorbing structure can prevent sound waves from leaking from the matching gaps of the surrounding portion 40 and the acoustic body 20.
  • the surrounding portion 40 and the mounting panel 10 can also adopt a separate structure in other embodiments of the present invention.
  • the present invention also provides a refrigerator (not shown) which can achieve the advantageous effects of the acoustic structure in the above embodiments by adopting the acoustic structure described in the above embodiments, and, due to other structures of the refrigerator Or the function has not been improved, so the other structure of the refrigerator will not be described here.

Abstract

一种冰箱及其音响结构（100）。该音响结构（100）包括：安装面板（10），用于与冰箱门体（4）或箱体（5）连接；音响本体（20），设置于安装面板（10）的一侧，音响本体（20）与安装面板（10）背面之间存有间隙（50）；其中，安装面板（10）上设有多个通孔（11、12），且在通孔（11、12）的径向上从内到外，通孔（11、12）的截面积逐渐增大。该用于冰箱的音响结构（100）将通孔（11、12）设计为在通孔（11、12）的径向上从内到外，通孔（11、12）的截面积逐渐增大，从而使得音箱本体（20）发出的声音增大广角向外扩散或使得用户发出的分散的声音通过小孔聚焦传播到麦克风（30）上，使显示屏播放声音、麦克接收声音效果更好。

Description

冰箱及其音响结构 技术领域
本发明涉及家用电器，尤其涉及冰箱及其音响结构。
背景技术
冰箱作为一种可使食物保持恒定低温冷态的容器已成为现代家庭必不可少的家用电器之一。随着信息化的高速发展，用户对冰箱智能化的要求也越来越高。
智能冰箱很重要的一项功能就是可以进行人机交互，而利用设置在冰箱上的音响结构播放语音，是进行人机交互的一种重要手段。目前市面上在售的冰箱门体上的音响盖表面一般都设置为通孔，且通孔的内部呈圆柱形，圆柱形声孔无法根据声波的传递方向收集声波，声音效果差，音质不清晰。
因此，有必要提供一种冰箱音响结构以解决上述问题。
发明内容
本发明的目的在于提供一种冰箱及其音响结构，以克服现有技术的至少一个缺陷。
为实现上述发明目的之一，本发明提供了一种用于冰箱的音响结构，其包括：安装面板，用于与冰箱门体或箱体连接；和音响本体，其设置于所述安装面板的一侧，所述音响本体与所述安装面板背面之间存有间隙；其中，所述安装面板上设有多个通孔，且在所述通孔的径向上从内到外，所述通孔的截面积逐渐增大。
可选地，所述安装面板上还设有多个非通孔，其外形与所述通孔相同。
可选地，所述音响结构还包括麦克风，所述麦克与所述音响本体设置在所述安装面板的同一侧。
可选地，所述音响结构还包括两端开口的筒状围挡部，位于所述音响本体和所述安装面板之间，用于提升所述音响本体发声的指向性。
可选地，所述通孔包括第一通孔和第二通孔，所述第一通孔至少设置于所述安装面板对应所述围挡部内的区域，所述第二通孔至少设置于所述安装面板对应所述麦克风的区域。
可选地，所述音响本体对准所述围挡部的端部开口处设置。
可选地，所述围挡部靠近所述音响本体一侧端口的内径大于或等于所述音响本体的外径。
可选地，所述音响本体与所述安装面板背面之间的间隙为7-10毫米。
可选地，所述安装面板嵌设在冰箱门体或箱体上，且其正面表面与所处冰箱门体或箱体的外表面位于同一平面上。
为实现上述另一发明目的，本发明提供一种冰箱，包括本发明的任一音响结构。
本发明的用于冰箱的音响结构将通孔设计为在通孔的径向上从内到外，通孔的截面积逐渐增大，从而使得音箱本体发出的声音增大广角向外扩散或使得用户发出的分散的声音通过小孔聚焦传播到麦克风上，使显示屏播放声音、麦克接收声音效果更好。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是安装有本发明所提供的音响结构的冰箱结构示意图；
图2是本发明一具体实施方式中音响结构的剖视图；
图3是图2中第二通孔的局部放大图；
图4是图2中第一通孔的局部放大图。
具体实施方式
以下将结合附图所示的各实施方式对本发明进行详细描述。但这些实施方式并不限制本发明，本领域的普通技术人员根据这些实施方式所做出的结构、方法、或功能上的变换均包含在本发明的保护范围内。
本文使用的例如“上”、“上方”、“下”、“下方”等表示空间相对位置的术语是出于便于说明的目的来描述如附图中所示的一个单元或特征相对于另一个单元或特征的关系。空间相对位置的术语可以旨在包括设备在使用或工作中除了图中所示方位以外的不同方位。例如，如果将图中的设备 翻转，则被描述为位于其他单元或特征“下方”或“之下”的单元将位于其他单元或特征“上方”。因此，示例性术语“下方”可以囊括上方和下方这两种方位。设备可以以其他方式被定向(旋转90度或其他朝向)，并相应地解释本文使用的与空间相关的描述语。
并且，应当理解的是尽管术语第一、第二等在本文中可以被用于描述各种元件或结构，但是这些被描述对象不应受到这些术语的限制。这些术语仅用于将这些描述对象彼此区分开。例如，第一通孔可以被称为第二通孔，并且类似地第二通孔也可以被称为第一通孔，这并不背离本申请的保护范围。
需要说明的是，本文中所描述的方位都是以音响结构正常安装在冰箱上的状态为参照，例如，安装面板的正面，即是安装面板朝向冰箱外部的一侧表面，安装面板的背面，即是安装面板朝向冰箱内部的一侧表面。
参图1至图2所示为本发明的用于冰箱的音响结构100的一较佳实施方式。本发明的音响结构100包括安装面板10、设置于安装面板10背面一侧的音响本体20及麦克风30。其中，安装面板10用于与冰箱门体4或箱体5连接。为了使冰箱的外观更加美观，同时也为了方便安装、加工，安装面板10嵌设在冰箱门体4或箱体5上，且其正面表面与所处冰箱门体4或箱体5的外表面位于同一平面上。
在本实施方式中，音响结构100设置在冰箱门体4的侧面，高度与成人站立时头部位置大致相等，如此，可以使音响本体20在多数使用情景下更靠近用户耳部，有益于获得更好的收听效果。音响本体20通常由小型内置电池供电，其外放功率不大，加之音响本体20发出的声波是向四周分散传播的，一部分声波的传播方向偏离了用户所处方位(用户所处方位是指正常使用冰箱时用户可能处在的高度方位)，例如，向上传播的声波要经过墙面多次反射才能进入人耳，衰减严重，直接影响到用户的收听效果。
音响结构100还包括两端开口的筒状围挡部40，位于音响本体20和安装面板10之间，用于提升所述音响本体发声的指向性。具体地，音响本体20对准围挡部40的端部的开口处设置，围挡部40靠近音响本体20一侧端口的内径大于或等于音响本体20的外径。通过设置围挡部40，音响本体20发出的声波经围挡部40内壁反射聚拢后再由安装面板10上的通孔向外传播，使得声波集中在用户所处方位，有益于提升用户的收听效果。
进一步地，通孔在安装面板10上呈阵列排布，且覆盖了安装面板10的 大部区域。安装面板11上设有多个通孔和多个非通孔13，通孔和非通孔13的外形相同，通孔增加了音响本体20与外部环境之间的通透性，方便声音向冰箱外部传播，且在通孔的径向上从内到外，通孔的截面积逐渐增大，这里的从内到外指的是从冰箱的内部到冰箱的外部。而非通孔13具有防尘作用，同时还可以利用非通孔13的点状阵列组合成任意形状，造型美观。
结合图3和图4所示，通孔包括第一通孔11和第二通孔12，第一通孔11至少设置于安装面板10对应围挡部40内的区域，由于围挡部40的聚拢效果，音响本体20发出的大部分声波都集中在围挡部40范围内，且第一通孔11被设置为在通孔的径向上从内到外，通孔的截面积是逐渐增大的，这种设计可以让音响本体20发出的声音增大广角向外扩散，用户能听到的较佳的音效。当然，在本发明的其它实施方式中，第一通孔11也可以只设置在安装面板10位于围挡部40内的区域。第二通孔至少设置于安装面板10对应麦克风30的区域，同样，第二通孔12被设置为为在通孔的径向上从内到外，第二通孔的截面积是逐渐增大的，这种设计可以让用户发出的分散的声音集中，通过小孔聚焦传播到麦克风上。
特别地，音响本体20与安装面板10背面之间存有间隙50。音响本体20和安装面板10间隔设置，由于音响本体20与安装面板10之间有一段安全距离，在冰箱进行电磁兼容实验，对安装面板10正面施加静电时，音响本体20不易发生静电耦合，有益于保证电磁兼容实验的实验精度。间隙50的距离太小难以起到防止静电耦合的效果，距离过大则意味着音响结构的整体厚度增大，安装时会侵占更多的冰箱保温层空间，影响冰箱的保温性能，间隙50优选为7-10毫米。
同时，由于音响本体20在使用过程中自身伴有震动，紧贴安装面板10设置容易与安装面板10产生共振，影响音质，音响本体20和安装面板10间隔设置有益于抑制共振产生，可以提升音响结构的音质。
本发明将音响本体20和安装面板10间隔设置，在冰箱做电磁兼容实验时不易发生静电耦合，有益于保证实验精度，同时也避免了音响本体20在使用过程中与安装面板10共振，影响音质，而且围挡部40具有聚拢声音的作用，可以提升音响本体20所发出声音的指向性，获得更好的收听效果。
继续参图2所示，在本实施方式中，围挡部40从安装面板10背面延伸至与音响本体20正面接触，围挡部40从安装面板10背面延伸，即与安装 面板110为一体结构，可以方便围挡部40和安装面板10的注塑制造，围挡部40与音响本体20接触，二者紧密配合形成单侧开口(安装面板10上的第一通孔11)的聚音结构，可以防止声波从围挡部40、音响本体20的配合缝隙中泄露，当然，并不排除本发明的其它实施方式中围挡部40与安装面板10也可以采用分体结构。
本发明还提供一种冰箱(图未示)，该冰箱通过采用上述各实施方式中介绍的音响结构，可以取得上述各实施方式中音响结构具有的有益效果，并且，由于对该冰箱的其他结构或功能并未做出改进，故在此对该冰箱的其它结构也不再赘述。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (10)

  1. 一种用于冰箱的音响结构，包括：
    安装面板，用于与冰箱门体或箱体连接；
    音响本体，设置于所述安装面板的一侧，所述音响本体与所述安装面板背面之间存有间隙；
    其中，所述安装面板上设有多个通孔，且在所述通孔的径向上从内到外，所述通孔的截面积逐渐增大。
  2. 根据权利要求1所述的音响结构，其中
    所述安装面板上还设有多个非通孔，其外形与所述通孔相同。
  3. 根据权利要求1所述的音响结构，还包括：
    麦克风，其与所述音响本体设置在所述安装面板的同一侧。
  4. 根据权利要求3所述的音响结构，还包括
    两端开口的筒状围挡部，其位于所述音响本体和所述安装面板之间，用于提升所述音响本体发声的指向性。
  5. 根据权利要求4所述的音响结构，其中
    所述通孔包括第一通孔和第二通孔，所述第一通孔至少设置于所述安装面板对应所述围挡部内的区域，所述第二通孔至少设置于所述安装面板对应所述麦克风的区域。
  6. 根据权利要求4所述的音响结构，其中
    所述音响本体对准所述围挡部的端部开口处设置。
  7. 根据权利要求4所述的音响结构，其中
    所述围挡部靠近所述音响本体一侧端口的内径大于或等于所述音响本体的外径。
  8. 根据权利要求1所述的音响结构，其中
    所述音响本体与所述安装面板背面之间的间隙为7-10毫米。
  9. 根据权利要求1所述的音响结构，其中
    所述安装面板嵌设在冰箱门体或箱体上，且其正面表面与所处冰箱门体或箱体的外表面位于同一平面上。
  10. 一种冰箱，包括如权利要求1所述的音响结构。
PCT/CN2016/113931 2016-07-07 2016-12-30 冰箱及其音响结构 WO2018006570A1 (zh)

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