KR101164764B1 - Speaker test box having vibration damping member - Google Patents

Abstract

PURPOSE: A speaker test box having a vibration damping member is provided to reduce personnel expenses and to enhance productivity by testing a speaker in a production line. CONSTITUTION: A speaker test box having a vibration damping member comprises a body member(100), a sound absorbing unit, a movable member(300), and vibration damping unit(400). The body member is composed of an upper plate(110), a lower plate(130), a connection frame(150), and a plurality of partitioning walls(170). A joining hole(111) joining with a jig(40) where a speaker is seated are formed in the upper plate. The connection frame is formed between the upper and lower plates and arranged in an edge side of the upper and lower plates comprises a first groove(151) and a second groove. The partitioning walls are formed between the connection frames, thereby both end parts of the partitioning wall are attached to/detached from the second groove. The sound absorbing member is seated in the upper part of the lower plate, thereby preventing sounds of the speaker from being reflected in the inside of the body member. The movable member is inserted into the first groove of the connection frame, thereby moving on the first groove. The vibration damping member comprises a vibration damping member(410) and a microphone fixing member(700) where a microphone is mounted is joined to the center of the vibration damping member.

Description

Speaker test box having vibration damping member

The present invention relates to a speaker test box having a vibration damping member for measuring whether or not a speaker is defective in an industrial site.

In general, the principle of the speaker is that when a current is applied to the coil attached to the diaphragm of the speaker, the permanent magnet attached to the speaker body and a pull or push force is generated, the vibration occurs, this vibration is propagated to the surrounding air to It enters the ear.

These speakers are different in size and shape depending on the intended use, and their characteristics are also different. Therefore, by setting the voltage to be inspected for each speaker and the frequency range to be inspected within a certain range, the speaker is driven by a sine wave signal and the sound is measured by microscopy. The test equipment provided is inspected for defects.

Also, the larger the loudspeaker and the higher the output, the more space is needed to measure the loudspeaker. In addition, since the abnormal sound of the speaker can be measured only in the soundproof room where there is no ambient noise, the speaker must be moved to the soundproof room after manufacturing in the production line and then measured. This method takes a lot of time for product movement and inspection.

In order to overcome this, there is a Republic of Korea Patent No. 10-0868972 which is a test box that can inspect the speaker in the production line.

The test box for the conventional speaker inspection, the box body is formed in the shape of a cube; A microphone fixedly installed at the center of the bottom surface of the box body; A hollow sound absorbing tube for accommodating the microphone therein; A speaker test box provided with a portable micro vibration damping member which is installed on an upper surface of the box body and includes a speaker jig on which a micro speaker is seated, wherein the box body is formed in a square plate shape and first fastened to an upper edge of the frame. The jaw is formed, the top plate is formed in the center plate and the coupling hole to which the speaker jig is coupled, and formed in a rectangular plate shape, the second fastening jaw is formed on one side of the rim, the first diffuse reflection groove having equal intervals in the longitudinal direction The plurality of side walls are formed, and are formed in a square plate shape, a third fastening jaw is formed at the lower edge of the edge, a second diffuse reflection groove is formed in a lattice shape, and a through hole through which the signal line of the microphone penetrates is formed at the center. An inner casing comprising a lower plate on which a pedestal is installed and fixed to a bottom edge; An outer casing made of metal formed on an outer side of the inner casing; And a sound absorbing material attached to the inner side and the inner bottom of the inner casing to test the speaker.

However, there is a problem that various measurements are not possible by adjusting the distance between the speaker and the microphone.

In addition, due to the shaking of the microphone according to the external environment there is a problem that the accurate test is not made.

In addition, in order to prevent reflection of the speaker sound on the microphone, a diffuse reflection groove is formed, but there is a problem that affects the test.

The present invention has been made to solve the above problems, to shield external noise in the production line and to measure the sound quality of the speaker, the size of the speaker test box is equipped with a vibration damping member according to the output of the speaker The purpose is to make it easy to change the production.

In addition, it is also possible to adjust the height of the microphone to adjust the distance between the microphone and the speaker to test.

It is also aimed at enabling the production and automation of loudspeaker testing processes on production lines.

It is also an object to provide a stacked sound absorbing material to eliminate the reflection of the speaker sound.

In order to achieve the above object, the present invention provides an input signal generated from a speaker in a test box for measuring the sound quality of the speaker using a sound quality test equipment, the jig in which the speaker is coupled is coupled The upper plate is formed with a hole, the lower plate formed in the lower spaced apart from the upper plate, and formed between the upper plate and the lower plate is located on the corner side of the upper plate and the lower plate and the first groove is formed toward the inside and both sides end A hexahedron-shaped body member which is formed between a connecting frame having a second groove formed therein and the connecting frame, and a plurality of side walls of which both end portions are detached from the second groove, and are seated on an upper portion of the lower plate of the speaker. Sound absorbing member for preventing sound from being reflected inside the body member, and each first of the connecting frame And a vibration damping member inserted into the movable member for moving on the first groove and having one end coupled to the movable member and having a vibration damping means, and a microphone fixing means having the microphone mounted thereon at the center thereof. It features.

Here, the fastening jaw is formed along the circumference of the coupling hole of the upper plate, characterized in that the jig is seated on the fastening jaw.

Meanwhile, a gasket may be further formed between the top of the side wall and the connection frame and the upper plate to improve a sealing force.

In addition, the lower plate may be further provided with a vibration absorbing member made of silicon and rubber.

And, in order to seal between the side wall and the connection frame is characterized in that the third groove is formed in the rubber bushing is inserted into the second groove.

In addition, the sound absorbing member may be formed of a plurality of plates in a stacked structure and a space such that the microphone is positioned therein.

In this case, the sound absorbing member may be made of a synthrate (ultra-fine fiber) material.

The moving member is inserted into the first groove, moves, and is formed integrally with the insertion part and the insertion part in which a first hole into which a pin can be inserted is formed so as to be fixed at a point. Protruding toward the inside, the vibration damping member is seated on the upper portion and a second hole is formed through the lower portion from the upper portion; consisting of, the first communication with the second hole on one side of the vibration damping member It is characterized in that the three holes are formed and fastened with a pin.

Here, the vibration damping means is made of a 'L' shape to reduce the vibration of the microphone by absorbing the vibration may be formed of one or more.

According to the present invention having the above-described configuration, the following effects can be expected.

First of all, the speaker can be tested in the production line, which has the advantage of reducing labor costs and improving productivity.

In addition, there is an advantage that can test the sound quality of the speaker according to the change of the interval by adjusting the distance between the speaker and the microphone.

In addition, the vibration damping member is provided to reduce the shaking of the microphone by buffering the shaking transmitted from the outside is also intended to enable a more accurate test.

In addition, by providing a stacked sound absorbing material to eliminate the reflection of the speaker sound is an advantage that can be more accurate test.

1 is an exploded perspective view of a speaker test box provided with a vibration damping member according to the present invention.
Figure 2 is a side cross-sectional view of a speaker test box provided with a vibration damping member according to the present invention.
3 is a view showing a connection frame of a speaker test box provided with a vibration damping member according to the present invention.
Figure 4 is a perspective view showing a sound absorbing member of the speaker test box provided with a vibration damping member according to the present invention.
Figure 5 is a perspective view showing a moving member of the speaker test box provided with a vibration damping member according to the present invention.
Figure 6 is a perspective view of a vibration damping member of the speaker test box provided with a vibration damping member according to the present invention.
Figure 7 is a perspective view showing the microphone fixing means of the speaker test box provided with a vibration damping member according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a speaker test box with a vibration damping member according to the present invention, Figure 2 is a side cross-sectional view of a speaker test box with a vibration damping member according to the invention, Figure 3 is a vibration according to the invention Figure 4 is a view showing a connection frame of a speaker test box provided with a damping member, Figure 4 is a perspective view showing a sound absorbing member of a speaker test box provided with a vibration damping member according to the present invention, Figure 5 is a vibration damping member according to the present invention Is a perspective view showing a moving member of the speaker test box is provided, Figure 6 is a perspective view of a vibration damping member of the speaker test box with a vibration damping member according to the invention, Figure 7 is provided with a vibration damping member according to the present invention Is a perspective view showing the microphone fixing means of the speaker test box.

As shown, the test box for receiving the input signal generated from the speaker 10 from the microphone 20 to measure the sound quality of the speaker using the sound quality inspection equipment 30, the present invention is largely the body member 100, the sound absorbing member 200, the moving member 300 and the vibration damping member 400 is made.

The body member 100 is formed in the lower spaced apart from the upper plate 110 and the upper plate 110, the coupling hole 111 is formed in the center so that the jig 40 on which the speaker 10 is seated is coupled. Being formed between the lower plate 130 and the upper plate 110 and the lower plate 130 is located on the corner side of the upper plate 110 and the lower plate 130 and the first groove 151 is formed toward the inside And a plurality of side walls 170 formed between the connecting frame 150 and the connecting frame 150 having the second grooves 152 formed at both side ends thereof, and having both ends detachable from the second grooves 152. It is a cube shape.

At this time, the connecting frame 150 is made of a 'b' shape is mounted while changing its position according to the left, right or front, rear placement point, for example, the right front of the 'b' shape When it is located in the corner, when it is located in the left rear corner is formed by the letter 'b'.

In addition, the sound absorbing member 200 is mounted on the lower plate 130 to prevent the sound of the speaker 10 from being reflected inside the body member 100.

The moving member 300 is inserted into each of the first grooves 151 of the connection frame 150 to move on the first grooves 151 and adjust the height of the vibration damping member 400 which will be described later. In this case, the vibration damping member 400, one end is coupled to the moving member 300, the vibration damping means 410 is formed, the microphone fixing means equipped with the microphone 20 in the center ( 700) are combined.

Here, the fastening jaw 112 is formed along the circumference of the coupling hole 111 of the upper plate 110, and the jig 40 is seated on the fastening jaw 112.

On the other hand, a gasket 500 for sealing between the upper side of the side wall 170 and the connecting frame 150 and the upper plate 110 is further formed, the upper plate 110 and the gasket 500 and the connecting frame When assembling the 150 to produce a fastening hole 160 is formed to connect, the top plate 110, the gasket 500 and the connecting frame 150 by coupling the fastening hole 160 to communicate with the top plate The 110 and the gasket 500 is fixed to the connection frame 150.

In addition, the lower plate 130 is further provided with a vibration absorbing member 600 made of silicon and rubber at the bottom to absorb the external shake or impact.

In addition, a third groove 153 into which a rubber bushing is inserted is formed in the second groove 152 to seal between the side wall 170 and the connection frame 150.

Referring to FIGS. 1 and 4, the sound absorbing member 200 has a plurality of plates formed in a stacked structure, and a space is formed to allow the microphone 20 to be positioned therein, and the input provided from the speaker 10. By preventing the signal from being reflected and transmitted to the microphone 20, the speaker can be accurately tested.

In this case, the sound absorbing member 200 is made of a highly insulating (ultra-microfiber) material having an excellent effect of preventing the generation of reflection sound, it is preferable to increase the sound absorbing function through the stacking and to further increase the sound absorbing function.

On the other hand, the moving member 300 is composed of the insertion portion 310 and the seating portion 320, it will be described with reference to Figs.

The insertion portion 310 is inserted into the first groove 151 to move on the first groove 151, the first hole that can be inserted into the pin to be fixed to a point during the movement ( 311) is formed. In this case, there may be a method of fixing the pin by pushing the pin strongly, but there may be a problem of slipping, by forming a plurality of grooves or holes in the first groove 151 to fix the pin there It is preferable to make it, but it is possible to fix it in various ways at the discretion of those skilled in the art.

In addition, the seating part 320 is formed integrally with the insertion part 310 and protrudes toward the inside thereof, and the vibration damping member 400 is seated on the upper part and penetrates the lower part from the upper part. ) Is formed, and a third hole 411 communicating with the second hole 321 is formed at one side of the vibration damping member 400 and fastened with a pin to fix the moving member 300. At this time, it is also possible to fix using a means other than a pin, for example, a bolt as described above, when using the bolt should be formed in the inner peripheral surface of the second hole 321 and the third hole 411 In addition, in addition to the discretion of those skilled in the art, the fixing method of the movable member 300 may be variously conceived.

And, referring to Figure 6, the vibration damping means 410 is made of a 'L' shape to reduce the vibration of the microphone by absorbing the vibration and one or more are formed, can be absorbed when vibration occurs Since the vibration damping means is contracted and relaxed as much as the space of the groove to be cut out of the 'd' shape, the vibration absorbing means can absorb the vibration, thereby further limiting the movement of the microphone, thereby allowing a precise test to be performed. Here, the arrangement of the 'ㄹ' shape can be varied. For example, to absorb the left and right vibrations, the 'ㄹ' shape is formed in a state rotated 90 degrees. It can be arranged, it is also possible to form a mixture of '' '' rotated '90' shape and '' 'shaped.

On the other hand, the microphone fixing means 700, by using a plurality of nuts to adjust the height of the microphone 20, a space in which the microphone 20 can be inserted therein is formed and threaded on the outer peripheral surface The bar 740 is integrally coupled to the outer circumferential surface of the bar 740 so that the bar 740 is inserted into the center of the vibration damping member 400 to the upper surface of the vibration damping member 400. The first nut 710 to be caught and the second nut 720 coupled to the bar 740 to be in contact with the lower surface of the vibration damping member 400 to secure the bar 740. And a third nut 730 coupled to the top of the bar 740 to loosen and tighten the space into which the microphone 20 is inserted, and to tighten and fix the space into which the microphone 20 is inserted. .

At this time, the loosening or tightening of the space where the microphone 20 is inserted in accordance with the loosening the third nut 730, the bar 740 is made of a material having an inclined top and elasticity, An end portion of the third nut 730 is also inclined, and when the third nut 730 is tightened, the third nut 730 is lowered along the thread of the bar 740 and the inclination of the upper end of the bar 740 is increased by the third nut 730. The inclined surface of the microphone 20 may be fixed by pressing, and when the third nut 730 is released, an upper end of the bar 740 may be opened by elasticity to move the microphone.

As described above, the present invention can first test the speaker in the production line to reduce labor costs and improve productivity, and to test the sound quality of the speaker according to the change of the interval by adjusting the distance between the speaker and the microphone, It is understood that the basic technical idea is to provide a speaker test box equipped with a vibration damping member, which is provided with a vibration damping member so as to buffer vibrations transmitted from the outside to reduce the shaking of the microphone so that more accurate testing is possible. Many other variations are possible to those of ordinary skill in the art within the scope of the basic idea of the present invention.

10: speaker 20: microphone
30: sound quality inspection equipment 40: jig
100: body member 110: top plate
111: coupling hole 130: lower plate
150: connecting frame 151: first groove
152: second groove 160: fastening hole
170: side wall 200: sound absorbing member
300: moving member 310: insertion portion
311: first hole 320: seating portion
321: second hole 400: vibration damping member
410: vibration damping means 411: third hole
500: gasket 600: vibration absorbing member
700: microphone fixing means 710: first nut
720: second nut 730: third nut
740: Bar

Claims (9)

In the test box for receiving the input signal generated from the speaker 10 from the microphone 20 to measure the sound quality of the speaker using the sound quality inspection equipment 30,
The upper plate 110, the coupling hole 111 is formed to be coupled to the jig 40, the speaker is seated, the lower plate 130 is formed in the lower portion and spaced apart from the upper plate, and is formed between the upper plate and the lower plate It is formed between the connecting frame 150 and the connecting frame which is located at the corners of the upper plate and the lower plate and the first groove 151 is formed toward the inside and the second groove 152 is formed on both side ends. A body member 100 having a hexahedron shape having an end portion detached from the second groove 170.
A sound absorbing member 200 mounted on an upper portion of the lower plate to prevent the sound of the speaker from being reflected from inside the body member;
A moving member 300 inserted into each of the first grooves of the connection frame and moving on the first groove;
Vibration damping member 400, one end is coupled to the moving member and the vibration damping means 410 is formed, the microphone fixing means 700, the microphone is mounted to the center is coupled; Speaker test box with damping element.
The method of claim 1,
A fastening jaw (112) is formed along the circumference of the coupling hole of the upper plate, the speaker test box with a vibration damping member, characterized in that the jig is seated on the fastening jaw.
The method of claim 1,
And a gasket (500) is further formed between the top of the side wall and the connection frame and the upper plate to improve a sealing force.
The method of claim 1,
The lower plate is a speaker test box provided with a vibration damping member, characterized in that the lower portion is further provided with a vibration absorbing member 600 of silicon and rubber material.
The method of claim 1,
Speaker test box provided with a vibration damping member, characterized in that the third groove 153 is formed in the interior of the second groove to seal between the side wall and the connecting frame.
The method of claim 1,
The sound absorbing member is a speaker test box having a vibration damping member, characterized in that the plurality of plates are made of a laminated structure, the space is formed so that the microphone is located therein.
The method of claim 6,
The sound absorbing member is a speaker test box provided with a vibration damping member, characterized in that the material is made of a synthrate (ultra ultrafine fiber).
The method of claim 1,
The moving member 300,
An insertion part 310 which is inserted into the first groove and moves and has a first hole 311 in which a pin can be inserted so as to be fixed at a point;
It is formed integrally with the insertion portion and protrudes toward the inside, the jeans on the top
A seating part 320 in which a copper damping member is seated and a second hole 321 is formed through the lower portion of the copper damping member; and a third hole 411 communicating with the second hole on one side of the vibration damping member. Speaker test box provided with a vibration damping member, characterized in that is formed and fastened with a pin.
The method of claim 1,
The vibration damping means is a speaker test box having a vibration damping member, characterized in that the vibration absorbing member is made of a 'L' shape so as to reduce the vibration of the microphone to reduce the vibration.

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