KR200420925Y1 - The structure for fixing to speaker a diaphragm using mobile communication terminal - Google Patents

Abstract

The present invention relates to a diaphragm fixing structure of a speaker for a telecommunication communication terminal.

The diaphragm fixing structure of the speaker for a mobile communication terminal of the present invention is provided with a yoke, a magnet, an upper plate, a voice coil, and a diaphragm installed in a frame of an oval shape having both soundproof openings and cut ends. In;

When assembling the frame and the diaphragm, protruding means are formed at both ends of the diaphragm so as to correspond to cuts at both ends of the frame to prevent dropping or concentricity due to rotation of the diaphragm from the frame. It is characterized in that the locking means are configured to be bound respectively.

In addition, the diaphragm fixing structure of the speaker for another mobile communication terminal of the present invention, the yoke, the magnet, the upper plate, the voice coil, the diaphragm is installed in the frame of the oval shape having both soundproof openings and front and rear ends cut. A speaker for a terminal;

Cutting parts are formed on the left and right both ends of the frame through which the soundproof opening is penetrated together with the cut parts formed on both front and rear sides, and the front, rear, left and right sides of the diaphragm so as to correspond to the cut parts respectively formed on both front and rear sides and the left and right sides of the frame, respectively. The locking means protruding at each end is characterized in that the locking means of the diaphragm is coupled to each cutting portion of the frame so that the frame and the diaphragm are prevented from falling or concentricity due to rotation of the diaphragm from the frame. .

Therefore, according to the present invention, when assembling the frame and the diaphragm, it is possible to easily improve the troublesome workability derived from the dropping or concentricity caused by the rotation of the diaphragm from the conventional frame, and further improve the productivity by greatly reducing the overall manufacturing defect rate. It has an excellent effect, such as being able to contribute.

Mobile communication terminal, speaker, frame, cutting part, diaphragm, locking means, concentricity, pull

Description

The structure for fixing to speaker a diaphragm using mobile communication terminal}

1 is a perspective view of a frame of a speaker for a conventional mobile communication terminal.

Figure 2a is a perspective view of a diaphragm of the speaker for a conventional mobile communication terminal.

Figure 2b is a plan view showing a conventional diaphragm coupled to the frame of Figure 1;

Figure 3 is a perspective view of the frame of the speaker for a mobile communication terminal of the present invention.

Figure 4 is a perspective view of a diaphragm of the speaker for a mobile communication terminal of the present invention.

5 is a plan view showing a state in which the diaphragm of the present invention is coupled to the frame of FIG.

Figure 6 is an embodiment showing another coupling state of the frame and the diaphragm of Figure 5;

7 is an operational state diagram of a speaker for a mobile communication terminal according to the present invention.

Explanation of symbols on the main parts of the drawings

30, 30a. frame

32, 32a. Cutting part

34. York

36. Soundproofing

38. Magnet

40. Upper plate

42, 42a, 42b. tympanum

43, 43a. Jam

44. Voice coil

46. Upper Case

The present invention relates to a speaker installed on a telecommunication terminal, and more particularly, having a soundproof opening of a speaker for a conventional mobile communication terminal composed of an upper case and a frame, a yoke, a magnet, a voice coil, a diaphragm, and an upper plate. Assembling the engaging means of the diaphragm in the cutting portion of the frame by forming the engaging means on both sides of the diaphragm so as to correspond to the cutting portion of the frame cut to the same length on both sides, thereby assembling the frame and the diaphragm In the conventional frame, it is possible to easily improve the troublesome workability caused by the tilting or concentricity caused by the rotation of the diaphragm, and furthermore, to the diaphragm fixing structure of the speaker for the mobile communication terminal, which can greatly reduce the overall manufacturing defect rate. It is about.

In general, a speaker for reproducing the electric sound signal transmitted from the other party to the original sound is applied to the mobile communication terminal represented by the mobile phone.

In the case of a speaker for a mobile communication terminal, a yoke for forming a magnetic circuit with a magnet is installed at the center of the frame, and an annular magnet for separating a yoke and generating a magnetic force to form a magnetic circuit, and is installed on the magnet. It consists of an upper plate, a diaphragm vibrating by electromagnetic force, and a voice coil wound on one surface of the diaphragm to apply a current to generate an excitation force of the diaphragm, wherein the voice coil is formed between the yoke and the magnet. It is installed in the separation space, it is to be installed in a state spaced apart from the yoke and the magnet.

Therefore, in the case of the speaker for the mobile communication terminal, when an AC signal corresponding to an acoustic signal is applied to both ends of the voice coil, the voice coil is excited and the magnetic field circuit is formed between the magnet and the plate. The diaphragm on which the coil is mounted vibrates up and down to reproduce sound.

However, in the case of the frame of the speaker for a conventional mobile communication terminal, when the overall area is increased, the overall area of the diaphragm is also increased, so that faithful sound signals can be reproduced. In order to maximize the denial of the liquid crystal display, the frame design has to be reduced in size.

Electro-acoustic conversion device (utility model registration No. 326984; pre-registered by the present applicant) under the condition that corresponds to all such contrary design specifications, that is, the overall size of the diaphragm is reduced while the size of the frame is reduced. In the following, a speaker for a mobile communication terminal has been proposed, which has the same configuration as the above-described conventional components of the speaker for a mobile communication terminal, that is, the upper case 46, the frame 30, the yoke 34, and the magnet ( 38) and the diaphragm 42 by which the upper plate 40 and the voice coil 44 were wound.

In the case of the frame 30, as shown in Figure 1, the overall shape is formed in an oval shape and cut to the same length to reduce the vibration area and minimize the occupied area at both ends (both sides of the short axis direction). The cutting portion 32 is formed to form a form in which the dimension in the short axis direction is reduced.

In addition, a yoke 34 for forming a magnetic circuit with the magnet 38 is installed at the center of the lower end of the frame 30, and sound insulation for outputting sound is provided at both sides of the long axis of the frame 30. 36 is penetrated.

In addition, in the case of the diaphragm 42 binding to the inside of the frame 30, as shown in FIG. 2A, the diaphragm 42 has the same elliptical shape as that of the frame 30. Both ends of the diaphragm 42 to be positioned are also cut.

In the frame 30 and the diaphragm 42 formed as described above, in the case of the frame 30, even if both ends are processed in the form of the cutting portion 32, even if the dimension in the short-axis direction is reduced, the maximum size allowable by design That is, there is a state in which the maximum design area is formed, and the diaphragm 42 also has the maximum vibration area according to the maximum design area of the frame 30, so that the sound reproducing ability is faithfully guaranteed. As shown in FIG. 2B, the diaphragm 42 is coupled to the diaphragm 42 from the frame 30 in accordance with the ratio of the long and short axes of the frame 30 and the diaphragm 42. As the phenomenon occurs in one direction due to the rotation of the concentricity between the frame 30 and the diaphragm 42 there was a big problem, such as not matching.

In addition, when the concentricity is lowered due to the tilting caused by the rotation of the diaphragm 42 from the frame 30 as described above, the operator must separately perform a correction operation to match the concentricity between the frame 30 and the diaphragm 42 again. In addition to the cumbersome work time for the assembly work is also lengthened, there was also a problem such as a significant decrease in the productivity of the speaker manufacturing.

When the concentricity of the frame 30 and the diaphragm 42 is not exactly matched in the assembling operation of the frame 30 and the diaphragm 42 as described above, the sound of the speaker may not be smoothly generated. There was also a problem such that the manufacturing failure rate is greatly increased.

In addition, in the state in which the frame 30 and the diaphragm 42 are assembled, the bonding area between the frame 30 and the diaphragm 42 is small when the diaphragm 42 vibrates due to power supply. There was also a problem that the performance of the speaker is greatly reduced, such as the vibration of the furnace diaphragm 42 is made.

The present invention devised to solve the conventional problems as described above, both sides of the upper case and the frame, yoke, magnet, voice coil, diaphragm, a speaker for a conventional mobile communication terminal consisting of an upper plate, The locking means are formed on both sides of the diaphragm so as to correspond to the cutting parts of the frame cut to the same length, so that the locking means of the diaphragm are respectively fixed to the cutting part of the frame, thereby aligning the frame and the diaphragm. It is possible to easily improve the hassle of workability due to the lowering of the concentricity or pull due to the rotation of the diaphragm from, and further aim to significantly reduce the overall manufacturing failure rate.

In addition, by engaging the diaphragm in the frame by engaging the stopper of the diaphragm to the engaging means of the diaphragm in the cut portion on both sides of the frame as described above, the frame does not need to execute a separate operation to match the concentricity between the conventional eccentric frame and the diaphragm The assembly workability for the operator is very simple, such that the concentricity of the diaphragm and the diaphragm are matched, and the working time is also greatly reduced, which contributes to the improvement of productivity. It has a different purpose to lead to improvement.

In the speaker diaphragm fixing structure of the present invention, the cutting parts are formed at both the left and right both ends of the frame with sound insulation holes together with the both end cutting parts of the frame, and the cutting parts are formed at the front and rear sides and the left and right both ends of the frame. And protruding the locking means at the front, rear, left and right ends of the diaphragm so as to correspond to each other, so that the locking means of the diaphragm is engaged at each cutting portion of the frame. Another purpose is to achieve a fixed state which is almost completely absent, and to achieve a more accurate concentricity between the frame and the diaphragm.

In addition, the engaging means of the diaphragm is engaged by engaging the diaphragm in the frame by engaging the engaging jaw protruding from the front, rear, left and right ends of the diaphragm, and engaging the diaphragm in the frame as described above. Another object of the present invention is to maximize the adhesion area of the diaphragm from the frame by the jaw to minimize the segmentation vibration that may occur due to the small adhesion area between the frame and the diaphragm.

The diaphragm fixing structure of the speaker for a mobile communication terminal of the present invention includes a yoke, a magnet, an upper plate, a voice coil, and a diaphragm installed in an oval frame having both soundproof openings and cut ends at both sides. ;

When assembling the frame and the diaphragm, protruding means are formed at both ends of the diaphragm so as to correspond to cuts at both ends of the frame to prevent dropping or concentricity due to rotation of the diaphragm from the frame. It is characterized in that the locking means are configured to be bound respectively.

Then, the diaphragm fixing structure of the speaker for another mobile communication terminal of the present invention is provided with a yoke, a magnet, an upper plate, a voice coil, and a diaphragm installed in an oval frame having both soundproof openings and front and rear ends cut. A speaker for a terminal;

Cutting parts are formed on the left and right both ends of the frame through which the soundproof opening is penetrated together with the cut parts formed on both front and rear sides, and the front, rear, left and right sides of the diaphragm so as to correspond to the cut parts respectively formed on the front and rear sides and the left and right sides of the frame, respectively. The locking means protruding at each end is characterized in that the locking means of the diaphragm is coupled to each cutting portion of the frame so that the frame and the diaphragm are prevented from falling or concentricity due to rotation of the diaphragm from the frame. .

At this time, in the speaker diaphragm structure of the present invention and another speaker diaphragm structure of the present invention, the locking means is characterized in that the locking step of the square irregularities.

Hereinafter, a diaphragm fixing structure (hereinafter, referred to as a diaphragm fixing structure of a speaker) of a speaker for a mobile communication terminal of the present invention will be described in detail with reference to the drawings.

3 is a perspective view of a frame of the speaker for a mobile communication terminal of the present invention, Figure 4 is a perspective view of a diaphragm of the speaker for a mobile communication terminal of the present invention, Figure 5 is a view of the present invention on the frame of FIG. Top view showing a state in which the diaphragm is coupled.

First, before describing the structure of the speaker diaphragm fixing structure of the present invention in detail, the same reference numerals are applied to the same configuration as that of the speaker for a conventional mobile communication terminal.

Accordingly, the speaker diaphragm fixing structure according to the present invention includes an upper case coupled to each other such that a sound generating means consisting of a diaphragm 42a and a voice coil 44, a magnet 38, an upper plate 40, and the like may be incorporated. 46 and frame 30; A diaphragm 42a fixed to an upper end of the frame 30 to generate a ringing sound while vibrating up and down by an electromagnetic force (magnetic field) around a coil to which a current is applied; A yoke (34) installed at the bottom center of the frame (30) to form a magnetic circuit with the magnet (38); A magnet (38) for generating magnetic force to be spaced apart from the yoke (34) to form a magnetic circuit; The diaphragm is installed between the magnet 38 and the yoke 34 spaced apart from each other in a state in which the winding of the diaphragm 42a is fixed to the bottom of the diaphragm 42a. The diaphragm has a corresponding action with the magnetic field generated between the magnet 38 and the yoke 34. A voice coil 44 to which a current is applied to generate an excitation force of 42a; An upper plate 40 installed at an upper end of the magnet 38 to form a magnetization path; It is composed of a PCB (not shown) or the like installed to apply power to the voice coil 44 (see FIG. 7).

Here, the speaker for the mobile communication terminal to which the diaphragm 42a fixing structure of the present invention is applied, that is, the upper case 46 and the frame 30, the yoke 34, the magnet 38, the upper plate 40, and the voice coil ( 44), a speaker for a mobile communication terminal composed of a diaphragm 42a and a PCB is the same as an electric-to-acoustic conversion device (Utility Model Registration No. 326984; hereinafter referred to as a speaker for a mobile communication terminal) pre-registered by the present applicant. It is known that the structure is made in advance.

In addition, the frame 30 of the components of the speaker for the mobile communication terminal is provided with a soundproof opening 36, the overall shape is formed in an oval shape, while reducing the vibration area by the diaphragm 42 and mobile communication In order to reduce the occupied area in the terminal, the cutting part 32 is formed by cutting the both ends of the frame 30 of the elliptical shape, that is, the both ends of the short axis direction, in the same length, thereby reducing the dimensions of the short axis direction. Form.

However, when assembling the elliptical frame 30 and the elliptical diaphragm 42 having the cut portions 32 formed at both ends as described above, the long and short portions of the frame 30 and the diaphragm 42 are separated. According to the ratio, the concentricity between the frame 30 and the diaphragm 42 or the concentricity between the frame 30 and the diaphragm 42 due to the rotation of the diaphragm 42 is distorted, and the manufacturing defect rate caused by this is increased. In order to solve the problem, such as to increase significantly, the speaker diaphragm fixing structure of the present invention is proposed, which will be described in more detail as follows.

Accordingly, the speaker diaphragm fixing structure according to the present invention has a frame 30 formed as shown in FIG. 3, that is, the sound insulation hole 36 is provided with both cut portions 32 of the frame 30 having both sides cut to the same length. The locking means protrudingly formed at both ends of the diaphragm 42a so as to correspond to the locking means of the diaphragm 42a on the cutting portion 32 of the frame 30, respectively, both sides of the frame 30 However, when assembling through the binding between the cutting portion 32 and the locking means on both sides of the diaphragm 42a, the workability that is derived from the dropping or concentricity due to the rotation of the diaphragm 42a from the conventional frame 30 is reduced. It can be easily improved, and further, the overall manufacturing failure rate can be greatly reduced.

In addition, in the case of the diaphragm 42a, the whole of the diaphragm 42a has an elliptical shape as shown in FIG. The locking means protrudes so as to correspond to the cutting portion 32. In this case, the locking means includes a locking jaw 43 having a square uneven shape having the same shape as the cutting portion 32 of the frame 30. consist of.

As such, the locking jaw 43, which is a locking means of the diaphragm 42a shown in FIG. 4, is attached to the cutting portion 32 of the frame 30 shown in FIG. 3, as shown in FIG. When the diaphragm 42a is coupled within the operator, the concentricity between the frame 30 and the diaphragm 42a is immediately matched without a separate work of matching concentricity between the conventional eccentric frame 30 and the diaphragm 42. The assembly work of the very easy and the manufacturing defect rate is greatly reduced thereby resulting in a characteristic effect that leads to the performance improvement of the product, that is, the speaker for a mobile communication terminal.

Figure 6 is an embodiment showing another coupling state of the frame and the diaphragm of FIG.

On the other hand, the diaphragm fixing structure of the speaker for another mobile communication terminal of the present invention, the yoke (34) in the frame 30a of the oval shape having a soundproof opening (36) and cut both front and rear ends as shown in FIG. ), A speaker for a mobile communication terminal provided with a magnet 38, an upper plate 40, a voice coil 44, and a diaphragm 42b, with a cutout 32 formed at both front and rear sides of the soundproof opening ( Cut portions 32a are formed on both left and right ends of the frame 30a through which the oscillation area 36 is penetrated, and cut portions 32a are respectively formed on the front and rear sides and the left and right sides of the frame 30a, respectively. The locking means protrude from the front, rear, left and right ends of the diaphragm 42b so as to correspond to the 32 and 32a, respectively, so that the diaphragm 42b rotates from the frame 30a when the frame 30a and the diaphragm 42b are assembled. Reduction to prevent dropping or concentricity caused by Engaging means for each cutting unit (32,32a) of the frame (30a) a diaphragm (42b) are configured to be each binder.

In addition, in the case of the locking means protruding in the front, rear, left and right ends of the diaphragm 42b of the diaphragm 42a structure of the present invention shown in Figure 4 formed in the same structure as the locking jaw 43 protruding at both ends It consists of a latching jaw (43a) of the square irregularities.

As described above, the cutting portions 32 and 32a respectively formed at the front and rear sides and the left and right sides of the frame 30a and the locking step 43a, which are the locking means protruding from each of the front and rear and left and right ends of the diaphragm 42b, respectively, correspond to each other. In the case of binding, the flow of the diaphragm 42b with respect to the frame 30a is almost absent in comparison with the speaker diaphragm fixing structure of the present invention shown in FIG. 5, and the frame 30a and the diaphragm 42b. In the concentricity of, more accurate mutual concentricity is achieved.

In addition, by maximizing the adhesive area of the diaphragm 42b from the frame 30a by the locking jaw 43a, which is a locking means of the diaphragm 42b, the adhesion area between the frame 30a and the diaphragm 42b, etc., during vibration is increased. Small vibrations, which can be generated small, can also produce characteristic effects that can be minimized.

Hereinafter, the operation process of the speaker for a mobile communication terminal to which the speaker diaphragm fixing structure of the present invention is applied will be described with reference to the drawings.

7 shows an operational state diagram of a speaker for a mobile communication terminal according to the present invention.

First, the voice coil connected to the PCB via a PCB installed on one side of the lower peripheral surface of the frame 30 coupled to the upper case 46 in the state that the speaker for the mobile communication terminal of the present invention is assembled, that is, When applied to the voice coil provided between the yoke 34 and the magnet 38 spaced apart from each other in the state fixed to the lower end of the diaphragm 42a, as shown in Figure 7, a magnetic field is formed around the voice coil By converting electrical energy into mechanical energy by the Fleming's left hand law, the vibration plate 42a is excited, and the sound pressure, that is, the ringing sound, is generated by vibrating the ambient air caused by the vibration of the vibration plate 42a.

Then, the ringing sound generated by the excitation of the diaphragm 42a as described above is discharged to the outside of the mobile communication terminal through the soundproof opening 36 formed through the left and right sides, the user's reception state through the ringing sound emitted by the user You will be informed to recognize this.

As described above, the above-described embodiment is described with reference to the most preferred example of the present invention, but is not limited to the above embodiment, and it will be apparent to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention. .

The speaker diaphragm fixing structure according to the present invention includes a soundproof opening of a speaker for a mobile communication terminal, which is composed of an upper case and a frame, a yoke, a magnet, a voice coil, a diaphragm, and an upper plate. The locking means protrudingly formed at both ends of the diaphragm so as to correspond to the cutting part is configured so that the locking means of the diaphragm is respectively coupled to the cutting part of the frame. In addition, the hassle of workability derived from concentricity can be easily improved, and further, the overall manufacturing defect rate can be greatly reduced.

In addition, by engaging the diaphragm in the frame by engaging the stopper of the diaphragm to the engaging means of the diaphragm in the cut portion on both sides of the frame as described above, the frame does not need to execute a separate operation to match the concentricity between the conventional eccentric frame and the diaphragm The assembly workability for the operator is very simple, such that the concentricity of the diaphragm and the diaphragm are matched, and the working time is also greatly reduced, which contributes to the improvement of productivity. There are also effects such as leading to improvement.

In the speaker diaphragm fixing structure of the present invention, the cutting parts are formed at both the left and right both ends of the frame with sound insulation holes together with the both end cutting parts of the frame, and the cutting parts are formed at the front and rear sides and the left and right both ends of the frame. And protruding the locking means at the front, rear, left and right ends of the diaphragm so as to correspond to each other, so that the locking means of the diaphragm is engaged at each cutting portion of the frame, so that the flow of the diaphragm with respect to the frame during the coupling process of the frame and the diaphragm. It is possible to achieve a fixed state that almost disappears, as well as to achieve a more accurate concentricity between the frame and the diaphragm combined state.

In addition, the engaging means of the diaphragm is engaged by engaging the diaphragm in the frame by engaging the engaging jaw protruding from the front, rear, left and right ends of the diaphragm, and engaging the diaphragm in the frame as described above. By maximizing the adhesion area of the diaphragm from the frame by the jaw, there is also an effect of minimizing the divided vibration that can be generated due to the small adhesion area between the frame and the diaphragm when vibrating.

Claims (3)

In the speaker for a mobile communication terminal provided with a soundproof opening, the yoke, the magnet, the upper plate, the voice coil, the diaphragm is installed in the frame of the oval shape cut at both ends; When assembling the frame and the diaphragm, protruding means are formed at both ends of the diaphragm so as to correspond to cuts at both ends of the frame to prevent dropping or concentricity due to rotation of the diaphragm from the frame. The diaphragm fixing structure of the speaker for a mobile communication terminal, characterized in that the locking means is configured to be bound respectively. A speaker for a mobile communication terminal comprising a yoke, a magnet, an upper plate, a voice coil, and a diaphragm in an elliptical frame having both sound insulation ports and front and rear ends cut therein; Cutting parts are formed on the left and right both ends of the frame through which the soundproof opening is penetrated together with the cut parts formed on both front and rear sides, and the front, rear, left and right sides of the diaphragm so as to correspond to the cut parts respectively formed on both front and rear sides and the left and right sides of the frame, respectively. The locking means protrudes at each end, so that the locking means of the diaphragm is fixed to each cutting part of the frame so that the frame and the diaphragm are prevented from dropping or falling due to rotation of the diaphragm. Diaphragm fixing structure of speaker for mobile communication terminal. The diaphragm fixing structure of a speaker for a mobile communication terminal according to claim 1 or 2, wherein the locking means is a locking jaw having a square irregularities.

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