阅读说明：本技术 一种用于高空扩声使用的碟形声波反射装置 (Disc-shaped sound wave reflecting device for high-altitude sound amplification ) 是由 尚志国 黄奎 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种用于高空扩声使用的碟形声波反射装置与音箱,该装置设有碟形反射体、第一弧形反射面、第二弧形反射面和直线反射面、固定吊装孔、扬声器固定孔与过线孔组成；碟形反射体外圈设置固定吊装孔,用于与天花板固定或高空吊装,碟形反射体内圈设置圆形固定孔与过线孔和下方扬声器连接实现对扬声器的吊装。弧形反射面和直线反射面分别由弧线段与直线段绕同一中心轴线旋转一周所得,并在中心形成锥体；直线段绕中心轴线形成锥尖,弧线段与直线段相连接,绕中心轴线旋转形成弧形反射面。此装置配合高低音同轴全频扬声器使用,具有全频段声波反射、无压缩、失真小、音质优、覆盖范围广、安装简便等特点。(The invention discloses a disc-shaped sound wave reflecting device and a sound box for high-altitude sound amplification, wherein the device is composed of a disc-shaped reflector, a first arc-shaped reflecting surface, a second arc-shaped reflecting surface, a linear reflecting surface, a fixed hoisting hole, a loudspeaker fixing hole and a wire passing hole; the outer ring of the dish-shaped reflector is provided with a fixed hoisting hole for fixing with a ceiling or hoisting at high altitude, and the inner ring of the dish-shaped reflector is provided with a circular fixed hole for connecting with the wire passing hole and the loudspeaker below to realize hoisting of the loudspeaker. The arc reflecting surface and the straight reflecting surface are respectively obtained by rotating the arc line segment and the straight line segment around the same central axis for a circle, and a cone is formed in the center; the straight line section forms a cone tip around the central axis, the arc line section is connected with the straight line section, and the arc line section rotates around the central axis to form an arc-shaped reflecting surface. The device is matched with a high-low frequency coaxial full-frequency loudspeaker for use, and has the characteristics of full-frequency-band sound wave reflection, no compression, small distortion, excellent sound quality, wide coverage range, simplicity and convenience in installation and the like.)

1. The utility model provides a dish sound wave reflect meter, the device by dish reflector (1), first arc plane of reflection (701), second arc plane of reflection (801) and straight line plane of reflection (901), fixed hole for hoist (2), speaker fixed orifices (3) with cross line hole (4) and constitute its characterized in that: the dish-shaped reflector (1) is provided with a hole for fixing with a ceiling or realizing high-altitude hoisting, the dish-shaped reflector (1) is also provided with a hole for connecting with a lower loudspeaker to realize hoisting of the loudspeaker, and the first arc-shaped reflecting surface (701), the second arc-shaped reflecting surface (801) and the straight line reflecting surface (901) are respectively obtained by rotating a circle around the same central axis by the first arc line segment (7), the second arc line segment (8) and the straight line segment (9) and form a cone in the center; the straight line section (9) forms a conical tip around the central axis, the first arc line section (7) is connected with the second arc line section (8), the second arc line section (8) is connected with the straight line section (9) and rotates around the central axis to form an arc reflecting surface, and the straight line reflecting surface (901) and the arc reflecting surface can uniformly reflect sound waves transmitted upwards by a loudspeaker located below downwards in a range of 360 degrees.

2. The disc shaped acoustic wave reflecting device according to claim 1, wherein: dish-shaped reflector (1) outer lane is provided with fixed hole for hoist (2), fixed hole for hoist (2) are fixed with the ceiling or adopt rings to realize the hoist and mount, dish-shaped reflector (1) inner circle is provided with speaker fixed orifices (3) and crosses line hole (4), below speaker shell (6) are fixed through fixed link (5) in speaker fixed orifices (3) and the line hole (4).

3. The disc shaped acoustic wave reflecting device according to claim 1, wherein: the first arc-shaped reflecting surface (701), the second arc-shaped reflecting surface (801) and the straight reflecting surface (901) are obtained by respectively rotating a circle along a central axis by a first arc line segment (7), a second arc line segment (8) and a straight line segment (9).

4. The disc shaped acoustic wave reflecting device according to claim 3, wherein: the radian of the first arc-shaped reflecting surface (701) and the radian of the first arc-shaped line segment (7) are 67.37 degrees together, the radian of the second arc-shaped reflecting surface (801) and the radian of the second arc-shaped line segment (8) are 96.32 degrees, the included angle between the straight line segment (9) and the central axis is 35 degrees, and the axial included angle between the circle center of the second arc-shaped line segment (8) and the central axis is 7.83 degrees.

5. The disc shaped acoustic wave reflecting device according to claim 3, wherein: the first arc line segment (7) is tangent to the second arc line segment (8), and the second arc line segment (8) is tangent to the straight line segment (9).

6. A sound box, characterized in that, it is made up of the disc-shaped sound wave reflecting device of any claim 1-5, the coaxial full frequency loudspeaker (10) and loudspeaker shell (6) that cooperate with high bass driver to be in the same axial line, the said coaxial full frequency loudspeaker (10) is the sound producing surface, the sound is produced upwards, the disc-shaped sound wave reflecting device utilizes straight line reflecting surface (901) and arcuate reflecting surface to reflect the sound wave 360 degrees downwards, cover the listening area below.

Technical Field

The invention relates to the technical field of sound wave transmission, in particular to a disc-shaped sound wave reflecting device for high-altitude sound amplification.

Background

The existing ceiling loudspeaker directly transmits sound through loudspeaker vibration when working, but the loudspeaker is limited by the covering angle and the installation height of the loudspeaker, can only cover a small part of the area below and cannot cover a larger area with sound waves when transmitting the sound downwards, thereby causing the problem of insufficient coverage of the traditional loudspeaker. If the coverage in a large range is needed to be realized, a plurality of practical loudspeakers need to work simultaneously, so that the system components are complex, phase interference exists among the loudspeakers, and the phenomenon of dressing filtering is formed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a dish-shaped sound wave reflecting device for high-altitude sound reinforcement, which is arranged at the top of a ceiling or hoisted at high altitude, can realize sound wave coverage in a larger range, solves the problems that the coverage range of the existing ceiling loudspeaker is small, a plurality of combined using systems are complex, sound waves are offset among the loudspeakers and the like, and the loudspeaker adopting the device can realize sound wave coverage in a larger range only by 1 loudspeaker and can effectively improve the sound reinforcement definition.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a dish-shaped sound wave reflecting device for high-altitude sound reinforcement is composed of a dish-shaped reflector, a first arc-shaped reflecting surface, a second arc-shaped reflecting surface, a linear reflecting surface, a fixed hoisting hole, a loudspeaker fixing hole and a line passing hole, wherein the fixed hoisting hole is formed in the outer ring of the dish-shaped reflector and used for being fixed to a ceiling or hoisting at high altitude, and the loudspeaker fixing hole is formed in the inner ring of the dish-shaped reflector and connected with the line passing hole and a loudspeaker below the line passing hole to realize hoisting of the loudspeaker. The first arc-shaped reflecting surface, the second arc-shaped reflecting surface and the straight line reflecting surface are respectively obtained by rotating a first arc line segment, a second arc line segment and a straight line segment around the same central axis for a circle, a cone is formed in the center, and a cone tip is formed by the straight line segment around the central axis; the first arc segment is connected with the second arc segment, and the second arc segment is connected with the straight line segment and rotates around the central axis to form an arc-shaped reflecting surface. The straight reflecting surface and the arc reflecting surface can uniformly reflect the sound waves transmitted upwards by the loudspeaker positioned below downwards in a 360-degree range.

Preferably, the outer ring of the dish-shaped reflector is provided with a fixed hoisting hole for fixing with a ceiling or hoisting at high altitude.

Preferably, the inner ring of the dish-shaped reflector is provided with a loudspeaker fixing hole which is connected with the wire through hole and the loudspeaker below to realize the hoisting of the loudspeaker.

Preferably, the first arc-shaped reflecting surface, the second arc-shaped reflecting surface and the straight-line reflecting surface are respectively obtained by rotating the first arc-shaped line segment, the second arc-shaped line segment and the straight-line segment around the same central axis for a circle, a cone is formed in the center, and a cone tip is formed by the straight-line segment around the central axis;

preferably, the first arc line segment is connected with the second arc line segment, and the second arc line segment is connected with the straight line segment and rotates around the central axis to form the arc-shaped reflecting surface.

Preferably, the radians of the first arc-shaped reflecting surface and the first arc segment are 67.37 degrees together, the radians of the second arc-shaped reflecting surface and the second arc segment are 96.32 degrees, the included angle between the straight line segment and the central axis is 35 degrees, and the axial included angle between the center of the second arc segment and the central axis is 7.83 degrees.

Preferably, the first arc line segment is tangent to the second arc line segment, and the second arc line segment is tangent to the straight line segment.

Preferably, dish-shaped sound wave reflecting device cooperation high bass driver uses at the coaxial full frequency speaker and the speaker shell of same axis, and coaxial full frequency speaker is the sound production face, and upward sound production, dish-shaped sound wave reflecting device then utilize sharp plane of reflection and arc plane of reflection 360 reflection sound waves down, cover the listening area of below.

Preferably, the side surface of the sound box is arc-shaped, so that the reflected sound waves can be smoothly guided to a listening area right below the sound box.

Advantageous effects

The invention provides a disc-shaped sound wave reflecting device for high-altitude sound reinforcement. The method has the following beneficial effects:

(1) the installation is simple and convenient, and through the fixed hole for hoist of disk body, practical self tapping screw can conveniently be fixed at the ceiling, has both realized the high altitude hoist and mount of no ceiling through changing for eye bolt.

(2) The sound wave is transmitted to the straight line and the arc-shaped reflecting surface of the dish-shaped reflector device through the coaxial full-frequency loudspeaker, and the sound wave is covered in a large range towards a lower listening area in a 360-degree direction through the specific angle of the reflecting surface. The whole body of the dish-shaped sound wave reflecting device is made of ABS plastic, the outer surface of the dish-shaped sound wave reflecting device is smooth like a mirror surface, and when sound waves are downwards covered and transmitted through the reflecting cambered surface, energy loss can be effectively avoided.

(3) The disc-shaped sound wave reflecting device can be amplified or reduced in equal proportion according to the size of the loudspeaker unit, so that the disc-shaped sound wave reflecting device is combined with loudspeakers under different power conditions and flexibly applied to sound amplification places with different sizes.

Drawings

FIG. 1 is a schematic axial sectional view of the overall structure of the apparatus of the present invention;

FIG. 2 is a schematic cross-sectional view of a portion of a disc-shaped acoustic wave reflection apparatus according to the present invention;

FIG. 3 is a schematic cross-sectional view of a disc-shaped acoustic wave reflection apparatus according to the present invention;

FIG. 4 is a schematic axial cut-away view of the disk-shaped acoustic reflector of the present invention;

FIG. 5 is a top view of the dish-shaped acoustic wave reflecting device of the present invention;

fig. 6 is a schematic diagram of the working principle of the device of the present invention.

In the figure: 1. a dish-shaped reflector; 2. fixing the hoisting hole; 3. a speaker fixing hole; 4. a wire passing hole; 5. a fixed connecting rod; 6. a speaker housing; 7. a first arc segment; 701. a first curved reflective surface; 8. a second arc segment; 801. a second curved reflective surface; 9. a straight line segment; 901. a linear reflecting surface; 10. coaxial full range speakers.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

the first embodiment is as follows:

a dish-shaped sound wave reflecting device for high-altitude sound reinforcement is characterized in that a dish-shaped reflector 1 of the device is a carrier for ceiling fixation and high-altitude hoisting and is also a carrier for sound wave reflection. 4 fixed hoisting holes 2 for ceiling/hoisting are uniformly arranged on the outer ring of the dish-shaped reflector 1, self-tapping screws penetrate through the holes and are fixed with a ceiling, so that the whole device can be fixedly installed, and the self-tapping screws can be replaced by lifting bolts to realize high-altitude hoisting under the condition of no ceiling; the inner ring of the dish-shaped reflector 1 is equally divided into 4 loudspeaker fixing holes 3 and a wire passing hole 4, and the loudspeaker fixing holes 3 are fixedly connected with the upper end of the fixed connecting rod 5 through the screw rods. The lower end of the fixed connecting rod 5 is fixedly connected with the loudspeaker shell 6 by a screw rod. The inside of the fixed connecting rod 5 is provided with a through hole for passing the wire, the upper end of the through hole is vertically connected with the wire passing hole 4 of the dish-shaped reflector 1, and the lower end of the through hole is vertically connected with the wire passing hole of the loudspeaker shell 6, so that the effect of holding the upper part and the lower part is achieved. The fixed connecting rod 5 is connected with the loudspeaker shell 6 under the dish-shaped reflector 1, and can conduct cables from the ceiling to the inside of the loudspeaker shell 6, so that the loudspeaker shell is attractive and firm. The inner cavity of the loudspeaker shell 6 is fixedly connected with a coaxial full-frequency loudspeaker 10 through a loudspeaker fixing screw.

The lower surface of the dish-shaped reflector 1 of the acoustic wave reflecting device is a first arc reflecting surface 701, a second arc reflecting surface 801 and a straight line reflecting surface 901 which are formed by a first arc segment 7, a second arc segment 8 and a straight line segment 9 surrounding a central axis for a circle; wherein the straight reflecting surface 901 forms the conical tip of the dish 1, the second curved reflecting surface 801 forms the concave surface of the dish 1 and the first curved reflecting surface 701 forms the rim of the dish 1.

Because dish-shaped reflector 1 carries out fixed connection through the bolt in the fixed hoist and mount hole 2 and the ceiling, dish-shaped reflector 1 passes through fixed link 5 and 6 fixed connection of speaker shell in addition, when the later stage need be changed, only need dismantle the construction bolt in the fixed hoist and mount hole 2 and can realize the holistic change of dish sound wave reflection. The speaker housing 6 is formed by buckling an upper part and a lower part, and the upper part and the lower part of the separated housing can realize replacement or maintenance of the coaxial full-frequency speaker 10.

Example two: the difference between this embodiment and the first embodiment is: the middle part of the lower surface of the dish-shaped reflector 1 rotates around the central axis by the straight line section 9 to form a linear reflecting surface 901 and is in a conical tip shape, and a second arc-shaped reflecting surface 801 is arranged on the lower surface of the dish-shaped reflector 1 and around the conical tip connected with the linear reflecting surface 901. The included angle between the second arc-shaped reflecting surface 801 and the central axis of the dish-shaped reflector 1 is 35 degrees, the radian of the second arc-shaped reflecting surface 801 is 96.32 degrees, and the included angle between the center of the second arc-shaped reflecting surface 801 and the central axis of the dish-shaped reflector 1 is about 7.83 degrees. The first arc reflecting surface 701 is formed by a first arc segment 7 which surrounds the central axis of the dish-shaped reflector 1 by 1 circle and is tangent to the second arc reflecting surface 801, and the radian of the first arc segment 7 is 67.37 degrees.

The whole dish-shaped reflector 1 is made of ABS plastic. When the disc-shaped reflector 1 is operated, the coaxial full-frequency loudspeaker 10 is started firstly, the coaxial full-frequency loudspeaker 10 emits sound waves, the emitted sound waves are transmitted to the disc-shaped reflector 1, the disc-shaped reflector 1 is composed of a conical tip of the linear reflecting surface 901, the second arc-shaped reflecting surface 801 and the first arc-shaped reflecting surface 701, when the sound waves are transmitted to the conical tip of the linear reflecting surface 901, the linear reflecting surface 901 omnidirectionally disperses the sound waves to the second arc-shaped reflecting surface 801 and the first arc-shaped reflecting surface 701 at 360 degrees, the two arc-shaped reflecting surfaces of the second arc-shaped reflecting surface 801 and the first arc-shaped reflecting surface 701 respectively reflect the sound waves to two sides and the lower part, a vast listening area below a ceiling is covered, and even under the condition that the ceiling space height is low, the whole room can be effectively covered. Because the whole dish-shaped reflector 1 is made of ABS plastic and the outer surface is smooth like a mirror surface, when sound waves are transmitted in all directions through the second arc-shaped reflecting surface 801 and the first arc-shaped reflecting surface 701, the energy loss is extremely low, the transmission efficiency is high, and 360-degree all-directional effective sound amplification coverage is performed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The disc-shaped sound wave reflecting device can be amplified or reduced in equal proportion according to the size of the loudspeaker unit, so that the disc-shaped sound wave reflecting device is combined with loudspeakers under different power conditions and flexibly applied to sound amplification places of different sizes.

The dimensions are different, and the change of parts and components belongs to the extension of the invention, and the protection scope of the invention is also necessary.