JP2010124089A - Speaker manufacturing method and speaker manufactured by the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker manufacturing method excellent in production efficiency. <P>SOLUTION: In the manufacturing method, a jig 2 provided with a guide member 10 having a linear guide portion is used. A part of a york notch part formed on a york 4 is guided by the guide member of the jig 2 to fasten the york 3 to a frame 3, and a part of a plate notch portion formed on a plate 6 with a magnet 5 joined thereto is guided by the guide member 10 of the jig 2 to fasten the magnet 5 to the york 4. Hence, a speaker is completed only by mounting respective configuration components of the speaker by using only one jig, useless processes are eliminated, and an excellent production efficiency is provided. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a speaker manufacturing method and a speaker manufactured by the manufacturing method.

  Conventionally, in assembling each component when manufacturing a speaker, the work by a machine is generally difficult and relies on manual work requiring skill.

  However, the recent miniaturization and thinning of the loudspeaker has a large influence of component displacement due to manual work, resulting in a low yield.

  In particular, when the magnet, which is one of the speaker components, is miniaturized as the speaker body becomes smaller and thinner, the yield decreases significantly.

  In other words, when the magnet is downsized, a narrow gap between the plate and the yoke is required to compensate for the performance degradation accompanying this, but in the manual operation, the plate, yoke, In addition, it is difficult to accurately arrange the magnetic circuit components of the magnet and the voice coil may come into contact with the plate or the yoke, resulting in a decrease in yield.

  In order to solve this problem, Patent Document 1 discloses a speaker manufacturing method in which each magnetic circuit component is accurately arranged using a jig to enable a narrow gap.

In the manufacturing method described in Patent Document 1, as shown in FIG. 16, the plate 103, the magnet 104, and the yoke 105 are sequentially stacked by using the first jig 101 and the second jig 102, and the magnetism of the speaker. A circuit body was manufactured. As a result, the magnet 104 can be accurately arranged in the center of the yoke 105 so that the central axis of the magnet 104 and the central axis of the plate 103 are coaxial.
JP 2007-336145 A

  Certainly, according to the manufacturing method described in Patent Document 1, it was possible to accurately arrange each magnetic circuit component, but there was a problem in terms of production efficiency.

  As shown in FIG. 16, this is because the manufacturing method described in Patent Document 1 uses two different jigs of the first jig 101 and the second jig 102.

  That is, in the manufacturing method described in Patent Document 1, the second jig 102 is placed on the first jig 101 after the plate 103 arranging step, and the magnet is mounted using the second jig 102. After the arrangement, it is necessary to take out the second jig 102, and the manufacturing method described in Patent Document 1 must perform the attaching / detaching operation of the second jig 102 as necessary in the manufacturing process. It was time consuming.

  Patent Document 1 does not disclose any assembly other than the magnetic circuit body.

  It is an object of the present invention to solve such problems and to provide a method for manufacturing a speaker with excellent production efficiency.

  In order to achieve this object, a speaker manufacturing method according to the present invention is a speaker manufacturing method in which a jig provided with a guide member having a linear guide portion is used, and a frame is placed on the jig. A part of the yoke notch provided in the yoke is guided by the guide member of the jig, the yoke is coupled to the frame, and the magnet is joined to the plate. A part of the plate notch is guided by the guide member of the jig, and the magnet is coupled to the yoke.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the speaker excellent in production efficiency can be provided.

  This is because a part of the notch of each magnetic circuit component is guided by the linear guide portion of the guide member provided on the jig, and the magnetic circuit body portion of the speaker is placed by sequentially loading each magnetic circuit component. By manufacturing.

  That is, in the speaker manufacturing method according to the present invention, it is not necessary to use a jig other than the jig described above, and it is possible to manufacture the magnetic circuit body portion of the speaker with only one jig and without taking time and effort. As a result, it is possible to provide a method for manufacturing a speaker with excellent production efficiency.

(Embodiment 1)
Hereinafter, the overall configuration of the speaker 1 and the jig 2 in the present embodiment will be described with reference to FIG.

  FIG. 1 is an exploded perspective view showing each component included in the speaker 1 and a jig 2. In the present embodiment, the vertical relationship shown in FIG. 1 is the vertical relationship when the speaker 1 is actually manufactured.

  As shown in FIG. 1, the speaker 1 includes a frame 3, a yoke 4, a magnet 5, a plate 6, a voice coil 7, a diaphragm 8, and a protector 9. Among these, the yoke 4 and the plate 6 have a notch at the peripheral edge, and the yoke 4, the plate 6 and the magnet 5 form a magnetic circuit.

  The jig 2 used when manufacturing the speaker 1 includes four guide members 10.

  In the present embodiment, the speaker 1 is manufactured by guiding each component of the speaker 1 in the direction of the arrow A in FIG.

  Next, each component of the speaker 1 will be described.

  First, the frame 3 will be described with reference to FIG. 2 is an external view of the frame 3, FIG. 2 (a) is a top view, FIG. 2 (b) is a bottom view, FIG. 2 (c) is a front view, and FIG. 2 (d) is a side view. .

  The frame 3 is made of resin and has a substantially rectangular parallelepiped shape as shown in FIG. As shown in FIG. 2A, the upper surface of the frame 3 has a substantially rectangular shape including a long side portion and a short side portion, and each corner portion on the outer periphery is chamfered.

  Further, as shown in FIGS. 2A and 2B, a substantially rectangular opening 11 is provided at the center of the frame 3, and each corner of the opening 11 has an R shape. ing. The opening 11 is a portion into which the yoke 4 is inserted when the speaker 1 is manufactured. The frame 3 has a mounting portion 13 between the opening 11 and the outer peripheral portion. The mounting portion 13 is a portion where the diaphragm 8 is mounted and coupled when the speaker 1 is manufactured.

  Further, as shown in FIGS. 2B and 2C, four lock claw engaging portions 12 in which a part of the frame 3 is cut out are provided on the bottom surface and the long side portion of the frame 3. . When the speaker 1 is manufactured, the lock claw engaging portion 12 is a portion that fits a lock claw 26 of the protector 9 described later and fixes the protector 9 to the frame 3.

  Next, the yoke 4 will be described with reference to FIG. 3 is an external view of the yoke 4. FIG. 3 (a) is a top view, FIG. 3 (b) is a bottom view, FIG. 3 (c) is a front view, and FIG. 3 (d) is a side view. .

  The yoke 4 is made of a magnetic material such as iron, and the bottom surface 14 has a substantially rectangular shape composed of a long side portion and a short side portion, as shown in FIGS. ing. The bottom surface 14 has a yoke notch 15 at each corner. Four yoke cutout portions 15 are provided on the bottom surface 14, and the innermost portion of the cutout portion, that is, the portion closest to the center of the bottom surface of the yoke 4 has an R shape.

  Further, the bottom surface 14 has a long side surface 16 on the long side as shown in FIG. 3C, and further has a short side surface on the short side as shown in FIG. 3D. 17. That is, the yoke 4 is provided with the long side surface 16 and the short side surface 17 so as to have a substantially box shape with a corner portion notched as shown in FIG.

  As shown in FIG. 3C, the long side surface 16 has protrusions 16 a that protrude in the lateral direction at both ends on the long side. The short side surface 17 has projecting portions 16b that project laterally at both ends on the long side. As described above, the protrusion 16a and the protrusion 16b are provided on the long side surface 16 and the short side surface 17, respectively, so that the area of the portion receiving the magnetic flux from the magnet 5 and the plate 6 is increased. As a result, the number of magnetic fluxes received from the magnetic circuit body by the voice coil 7 increases, and the voice coil 7 can sufficiently vibrate up and down when the speaker 1 is driven.

  Next, the magnet 5 will be described with reference to FIG. FIG. 4 is a top view of the magnet 5. The magnet 5 has the same shape on the upper and lower surfaces.

  As shown in FIG. 4, the magnet 5 has a substantially rectangular shape including a long side portion and a short side portion. Each corner portion of the magnet 5 is cut out, and the magnet 5 has four magnet cutout portions 18.

  Next, the plate 6 will be described with reference to FIG. 5A and 5B are views showing the appearance of the plate 6, FIG. 5A is a top view, and FIG. 5B is a bottom view.

  The plate 6 has a substantially rectangular parallelepiped shape, and as shown in FIG. 5A, the upper surface of the plate 6 has a substantially rectangular shape composed of a long side portion and a short side portion. . Each corner portion of the plate 6 is notched, and the plate 6 has four plate notches 19. The plate notch 19 has an R shape on the innermost side of the notch, that is, the portion closest to the center of the plate 6.

  The lower surface of the plate 6 has the same shape as the upper surface of the plate 6 as shown in FIG. However, a track-like groove 20 is provided on the lower surface of the plate 6 along the periphery. The groove 20 prevents excess adhesive from overflowing to the side of the plate 6 when the plate 6 and the magnet 5 are bonded with an adhesive.

  The long side and the short side of the plate 6 are longer than the long side and the short side of the magnet 5, respectively, and the plate notch 19 of the plate 6 is smaller than the magnet notch 18 of the magnet 5. Therefore, when the plate 6 and the magnet 5 are overlapped and bonded together, the peripheral portion of the magnet 5 can be disposed inside the peripheral edge of the plate 6.

  The distance between the plate notches 19 on the long side of the plate 6 (L3 in FIG. 5A) is the distance between the yoke notches 15 on the long side of the yoke 4 (L1 in FIG. 3A). The distance between the plate notches 19 on the short side of the plate 6 (L4 in FIG. 5A) is the distance between the yoke notches 15 on the short side of the yoke 4 (FIG. 3A). Is equal to L2). Therefore, the plate 6 and the yoke 4 can be overlapped so that a part of the plate notch 19 and a part of the yoke notch 15 are on the same straight line. And the yoke notch 15 overlap at the same position.

  Next, the voice coil 7 will be described with reference to FIG. 6A and 6B are views showing the external appearance of the voice coil 7. FIG. 6A is a top view and FIG. 6B is a front view.

  The voice coil 7 is formed to have a substantially rectangular shape having a hollow portion 21 at the center as shown in FIG. When the speaker 1 is assembled, the length of the long side of the hollow portion 21 is longer than the long sides of the plate 6 and the magnet 5 and the length of the short side is longer than the short sides of the plate 6 and the magnet 5. The plate 6 and the magnet 5 can be inserted into the hollow portion 21.

  Each corner portion of the voice coil 7 has an R shape so that a stress load is not excessively applied when the speaker 1 is driven. Further, a gold thread wire 22 is provided from the voice coil 7 as shown in FIGS. 6 (a) and 6 (b). When driving the speaker 1, an alternating current to which an audio signal is added is passed from the outside to the voice coil 7 through the gold thread wire 22.

  Next, the diaphragm 8 will be described with reference to FIG. 7A and 7B are views showing the appearance of the diaphragm 8, in which FIG. 7A is a top view and FIG. 7B is a bottom view.

  As shown in FIGS. 7A and 7B, the diaphragm 8 has a substantially rectangular shape, and each corner portion has an R shape. The outer peripheral edge portion of the diaphragm 8 is provided with an outer coupling portion 23 having the same shape as the mounting portion 13 provided on the frame 3, and further on the inner side of the same shape as the substantially rectangular shape of the voice coil 7. An inner coupling portion 24 is provided. These outer coupling portion 23 and inner coupling portion 24 are portions that are coupled to the placement portion 13 of the frame 3 and the upper end portion of the voice coil 7, respectively, when the speaker 1 is manufactured.

  Next, the protector 9 will be described with reference to FIG. 8A and 8B are views showing the appearance of the protector 9. FIG. 8A is a top view and FIG. 8B is a front view.

  The protector 9 is a component that protects the components of the speaker 1 such as the magnetic circuit body and the diaphragm 8 from the outside. As shown in FIG. 8A, the upper surface of the protector 9 has a long side portion and a short side portion. It is a substantially rectangular shape consisting of parts. The shape of the outer peripheral portion of the protector 9 is substantially the same (similar) as the shape of the outer peripheral portion of the diaphragm 8.

  Further, the protector 9 is provided with three circular sound emitting holes 25 as shown in FIG. When the speaker 1 is driven, sound reproduced from the diaphragm 8 is radiated to the outside through the sound emission hole 25. In the present embodiment, three sound emitting holes 25 are provided. However, the present invention is not limited to this structure, and a structure in which more sound emitting holes 25 are provided, or a method of arrangement thereof. May be changed.

  Further, as shown in FIG. 8B, two lock claws 26 are provided on each long side of the protector 9. The lock claw 26 is fitted to the lock claw engaging portion 12 of the frame 3 when the speaker 1 is manufactured.

  Next, the jig 2 will be described with reference to FIG. 9A and 9B are views showing the appearance of the jig 2. FIG. 9A is a top view, FIG. 9B is a front view, and FIG. 9C is an enlarged view of the guide member 10 provided on the jig 2. FIG. FIG.

  As shown in FIGS. 9A and 9B, the jig 2 has four rod-shaped guide members 10 implanted in the vicinity of the center portion of the placement surface 27. The guide member 10 guides the above-described components when the speaker 1 is manufactured.

  As shown in FIGS. 9B and 9C, the guide member 10 is perpendicular to the placement surface 27, and is formed in a straight line from the lower end portion to the vicinity of the upper end portion. A guide portion 29 is provided. Of these two guide portions, the inner guide portion 28 is a portion that guides the yoke 4 and the plate 6, and the lower end portion is coupled to the mounting surface 27. The outer guide portion 29 is a portion for guiding the voice coil 7 and is coupled with a holding portion 30 for placing the voice coil 7 in the vicinity of the center portion. In the present embodiment, the shape of the guide member 10 is a rod. However, the shape of the guide member 10 is not limited to this. Any shape is acceptable. However, in the case of the rod shape as in the present embodiment, the possibility of damaging each component of the speaker 1 can be reduced, so that the guide member 10 is desirably rod-shaped. The tip of the guide member 10 has a small diameter so as not to be damaged when each component is inserted.

  Furthermore, the jig | tool 2 is equipped with the holding part 30 as FIG.9 (c) shows. When the speaker 1 is manufactured, the holding unit 30 is a part that places the voice coil 7 on the upper surface thereof and holds the voice coil 7 at a predetermined height.

  In the present embodiment, the holding unit 30 is integrated with the guide member 10.

  Hereinafter, the manufacturing process of the speaker 1 will be described.

  The first step is a step in which the frame 3 is placed on the jig 2.

  In this step, the frame 3 is placed on the placement surface 27 of the jig 2 such that the guide member 10 and the holding part 30 of the jig 2 are positioned in the opening 11 as shown in FIG. Here, in FIG. 10 to FIG. 15, the guide member 10 and the holding portion 30 are indicated by dotted lines, and the general positional relationship between each component of the speaker 1 and the guide member 10 and the holding portion 30 in the manufacturing process is shown.

  As shown in FIG. 10, when the frame 3 is placed on the jig 2, the four guide members 10 and the holding portions 30 are positioned in the vicinity of each corner portion of the opening 11.

  In this step, it is not necessary to accurately position the frame 3 with respect to the placement surface 27, and the frame 3 may be placed with a certain degree of accuracy. For example, there is no problem even if the process proceeds to the next step with the frame 3 in contact with the guide member 10 and the holding unit 30. This is because the frame 3 is automatically positioned with respect to the yoke 4 and the guide member 10 by fitting the yoke 4 into the opening 11 of the frame 3 when the frame 3 and the yoke 4 are coupled in a later process. Because.

  The second step is a step in which the yoke 4 is guided by the guide member 10 and the yoke 4 is coupled to the frame 3.

  In this step, first, as shown in FIG. 11, the inner guide portion 28 of each guide member 10 is brought into contact with each yoke notch portion 15 of the yoke 4. In this state, the yoke 4 is guided in the direction of the arrow shown in FIG. 1 along the inner guide portion 28, and in the opening 11 of the frame 3 placed on the placement surface 27 of the jig 2 in the first step. Fit. As a result, the yoke 4 is coupled to the frame 3. As described above, the frame 3 is positioned with respect to the yoke 4 and the guide member 10 by this process.

  The third step is a step in which the plate 6 to which the magnet 5 is bonded is guided by the guide member 10 and the magnet 5 and the yoke 4 are coupled.

  In performing this process, the upper surface of the magnet 5 and the lower surface of the plate 6 are bonded in advance with an adhesive. At this time, if a part of the magnet 5 protrudes from the plate cutout portion 19 of the plate 6, it becomes impossible to guide the plate cutout portion 19 with the guide member 10. 5 is bonded so that it does not protrude from the plate notch 19. As can be seen from this, the magnet 5 protrudes from the plate notch 19 such that the long side and the short side are shorter than the plate 6 or the magnet notch 18 is larger than the plate notch 19. Designed not to be.

  In addition, an adhesive for bonding with the yoke 4 is applied to the lower surface of the magnet 5 in advance.

  Then, as shown in FIG. 12, each plate notch portion 19 of the plate 6 to which the magnet 5 is bonded is brought into contact with the inner guide portion 28 of each guide member 10. Here, as shown in FIG. 12, the outer guide portion 29 of the guide member 10 is positioned outside the outer periphery of the plate 6. This is to prevent the voice coil 7 from coming into contact with the plate 6 when the voice coil 7 is inserted in a fourth step described later.

  In this state, like the yoke 4 in the second step, the plate 6 is guided in the direction of the arrow shown in FIG. 1 along the inner guide portion 28, and the lower surface of the magnet 5 joined to the lower surface of the plate 6 is connected to the yoke. 4 and contact. Here, since the inner guide portion 28 has a linear shape perpendicular to the mounting surface 27 of the jig 2, a part of the yoke cutout portion 15 and the plate cutout portion 19 is in relation to the mounting surface 27. Are located on the same vertical straight line.

  Thus, a magnetic circuit body having a magnetic gap between the yoke 4 and the plate 6 is manufactured by the first to third steps.

  The fourth step is a step in which the voice coil 7 is guided by the guide member 10 and inserted into the magnetic gap.

  In this step, first, as shown in FIG. 13, the inner corner portion of the voice coil 7 is brought into contact with the outer guide portion 29 of each guide member 10. In this state, the voice coil 7 is guided along the outer guide portion 29 in the arrow direction shown in FIG. Here, since the holding part 30 is provided in the jig 2, the voice coil 7 is placed on the holding part 30. Therefore, the voice coil 7 does not move further to the mounting surface 27 side, and the voice coil 7 can be held at a predetermined position. At this time, the upper end of the voice coil 7 protrudes above the upper end of the guide member 10 (on the opposite side to the mounting surface 27) in order to be coupled to the diaphragm 8 later.

  In this process, the voice coil 7 is inserted into the magnetic gap of the magnetic circuit body formed in the third process. Furthermore, since the voice coil 7 is held by the holding unit 30, the voice coil 7 is not inserted deeper than necessary into the magnetic gap.

  The fifth step is a step in which the diaphragm 8 is coupled to the voice coil 7 and the frame 3.

  In this step, first, an adhesive is applied to the mounting portion 13 of the frame 3 and the inner coupling portion 24 of the diaphragm 8. The mounting portion 13 of the frame 3 and the outer coupling portion 23 of the diaphragm 8 are bonded and fixed with an adhesive, and the upper end portion of the voice coil 7 and the inner coupling portion 24 of the diaphragm 8 are bonded to each other. Glued and fixed by.

  The sixth step is a step in which the protector 9 is coupled to the frame 3.

  In this step, the four lock claws 26 included in the protector 9 are hooked on the corresponding lock claw engaging portions 12. As a result, the protector 9 is attached to the frame 3. Further, the frame 3 and the protector 9 are joined and fixed by an adhesive.

  The seventh step is a step of extracting the speaker 1 in the state up to the sixth step from the jig 2.

  In this step, the speaker 1 in the state up to the sixth step is moved in the direction opposite to the arrow in FIG. As a result, the speaker 1 can be extracted from the jig 2.

  Through the above steps, the speaker 1 as shown in FIG. 14 is completed. 14A is a perspective view of the speaker 1, FIG. 14B is a top view of the speaker 1, and FIG. 14C is a cross-sectional view of the speaker 1 taken along a dashed line BC in FIG. 14B. As shown in FIG. 14C, the voice coil 7 is inserted into the magnetic gap between the yoke 4 and the plate 6 without contacting other components, and when the speaker 1 is driven. However, the voice coil 7 does not come into contact with the magnetic circuit body. Therefore, the speaker 1 is excellent in reliability.

  Hereinafter, effects of the manufacturing method of the present embodiment will be described.

  First, the manufacturing method in the present embodiment is excellent in production efficiency.

  This is because it is not necessary to use a jig other than the jig 2 in the manufacturing method in the present embodiment, and the magnetic circuit body portion of the speaker 1 can be manufactured with only one jig. That is, in the conventional manufacturing method, it is necessary to use two jigs or a larger number of jigs, which is troublesome. However, according to the manufacturing method of the present embodiment, such a labor is required. The magnetic circuit body portion of the speaker 1 can be manufactured without applying. Furthermore, since the manufacturing method of the present embodiment can manufacture the speaker 1 only by sequentially loading the components of the speaker 1, the process is less wasteful.

  Thus, the manufacturing method in the present embodiment is excellent in production efficiency.

  Further, it is desirable that the yoke 4 has at least two yoke cutout portions 15 and the plate 6 has at least two plate cutout portions 19.

  By providing a plurality of notches in the yoke 4 and the plate 6 in this way, the yoke 4 and the plate 6 can be positioned more accurately, and a magnetic gap with a small gap between the yoke 4 and the plate 6 can be reliably ensured. It becomes possible to form. As a result, the magnetic flux density of the magnetic gap can be increased and the performance of the speaker can be improved.

  The yoke notch 15 and the plate notch 19 are preferably provided at each corner of the yoke 4 and the plate 6, respectively.

  This is because the positioning between the yoke 4 and the plate 6 becomes more accurate, and the processing for forming the yoke 4 and the plate 6 becomes easier than in the case where notches are provided at other positions.

  Furthermore, in this embodiment, the voice coil 7 is inserted into the magnetic gap using the outer guide portion 29 of the guide member 10.

  When the voice coil 7 is inserted into the magnetic gap using the outer guide portion 29 of the guide member 10 as described above, the voice coil 7 can be accurately centered with respect to the magnetic circuit body without contacting the magnetic circuit body. .

  Therefore, the possibility that the voice coil 7 contacts the magnetic circuit body when the speaker 1 is driven can be reduced, and the speaker 1 with high reliability can be manufactured.

  In this embodiment, the yoke cutout portion 15 and the plate cutout portion 19 are R-shaped. However, the present invention is not limited to this, and the same effect can be obtained, for example, as a square cutout portion. Is possible.

(Embodiment 2)
Hereinafter, the manufacturing method in the present embodiment will be described. The components of the speaker 1 and the configuration of the jig 2 in the present embodiment are the same as those in the first embodiment except for the magnet 5. Therefore, description regarding components other than the magnet 5 and the jig 2 is omitted. Also, with respect to the manufacturing method, the description of the same steps as in the first embodiment will be omitted, and only different points will be described.

  A difference between the present embodiment and the manufacturing method of Embodiment 1 is the third step.

  In the first embodiment, the magnet 5 is previously bonded to the plate 6 in the third step. However, in the present embodiment, the magnet 5 may not be bonded to the plate 6 in advance.

  That is, in the present embodiment, after the second step in the first embodiment, as shown in FIG. 15, the magnet cutout portion 18 of the magnet 5 previously applied with an adhesive for bonding to the yoke 4 is used as the guide member 10. The magnet 5 is moved in the direction of the arrow in FIG. 1 from this state.

  Then, after bringing the magnet 5 into contact with the yoke 4 and bonding them, the plate 6 is moved in the direction of the arrow in FIG.

  After these steps, the speaker 1 can be completed by sequentially performing the fourth, fifth, and sixth steps in the first embodiment.

  Thus, according to the present embodiment, it is not necessary to bond the magnet 5 to the plate 6 in advance, and the magnet 5 can be bonded to the plate 6 in a series of manufacturing steps. Therefore, the manufacturing method in the present embodiment is further excellent in production efficiency.

  Since the magnet cutout portions 18 of the magnet 5 must be brought into contact with the inner guide portions 28 as described above, the size of the magnet 5 can also bring the magnet cutout portions 18 into contact with the inner guide portions 28. Designed to.

  In addition, the speaker 1 manufactured by the manufacturing method according to the present embodiment has a configuration in which the magnet cutout portion 18, the yoke cutout portion 15, and the plate cutout portion 19 are partially arranged on the same straight line. They overlap at the same position when viewed from above. Like the speaker 1 manufactured by the manufacturing method of the first embodiment, the possibility that the voice coil 7 contacts the magnetic circuit body during driving of the speaker 1 manufactured by the manufacturing method of the present embodiment is also reduced. It is reliable.

  The speaker manufacturing method according to the present invention is excellent in production efficiency, and the speaker manufactured by this manufacturing method is small but excellent in reliability. And can be suitably used for speakers used in electronic devices.

Disassembled perspective view of components of the speaker 1 and the jig 2 It is a figure which shows the external appearance of the flame | frame 3, (a) is a top view of the frame 3, (b) is a bottom view of the frame 3, (c) is a front view of the frame 3, and (d) is a side view of the frame 3. It is a figure which shows the external appearance of the yoke 4, (a) is a top view of the yoke 4, (b) is a bottom view of the yoke 4, (c) is a front view of the yoke 4, (d) is a side view of the yoke 4. Top view of magnet 5 It is a figure which shows the external appearance of the plate 6, (a) is a top view of the plate 6, (b) is a bottom view of the plate 6 It is a figure which shows the external appearance of the voice coil 7, (a) is a top view of the voice coil 7, (b) is a front view of the voice coil 7. 2A and 2B are diagrams illustrating an appearance of the diaphragm 8, where FIG. 3A is a top view of the diaphragm 8, and FIG. 2B is a bottom view of the diaphragm 8. It is a figure which shows the external appearance of the protector 9, (a) is a top view of the protector 9, (b) is a front view of the protector 9. It is a figure which shows the external appearance of the jig | tool 2, (a) is a top view of the jig | tool 2, (b) is a front view of the jig | tool 2, (c) is an enlarged front view of the guide member 10. The figure which shows the positional relationship of the guide member 10 and the flame | frame 3 at the time of manufacture The figure which shows the positional relationship of the guide member 10 and the yoke 4 at the time of manufacture The figure which shows the positional relationship of the guide member 10 and the plate 6 at the time of manufacture The figure which shows the positional relationship of the guide member 10 and the voice coil 7 at the time of manufacture It is a figure which shows the speaker 1, (a) is a perspective view of the speaker 1, (b) The top view of the speaker 1, (c) is sectional drawing of the speaker 1. The figure which shows the positional relationship of the magnet 5 and the guide member 10 of the manufacturing method in Embodiment 2. FIG. The figure which shows the manufacturing method of the conventional speaker

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Speaker 2 Jig 3 Frame 4 Yoke 5 Magnet 6 Plate 7 Voice coil 8 Diaphragm 9 Protector 10 Guide member 11 Opening part 12 Lock claw latching part 13 Mounting part 14 Bottom face 15 Yoke notch part 16 Long side surface 16a Protruding portion 16b Protruding portion 17 Short side surface 18 Magnet cutout portion 19 Plate cutout portion 20 Groove 21 Hollow portion 22 Wire thread wire 23 Outer coupling portion 24 Inner coupling portion 25 Sound emitting hole 26 Locking claw 27 Mounting surface 28 Inner guide Part 29 Outer guide part 30 Holding part

Claims (15)

A method of manufacturing a speaker in which a jig provided with a guide member having a linear guide portion is used,
A step of placing a frame on the jig;
A part of a yoke notch provided in the yoke is guided by the guide member of the jig, and the yoke is coupled to the frame;
A speaker manufacturing method comprising at least a step of guiding a part of a plate notch provided in a plate to which a magnet is joined to the guide member of the jig and coupling the magnet to the yoke. The yoke has at least two yoke cutouts;
The plate has at least two plate notches,
The speaker manufacturing method according to claim 1, wherein the guide portion guides the yoke notch and the plate notch. The bottom surface of the yoke is substantially rectangular,
The plate is substantially rectangular;
The speaker manufacturing method according to claim 2, wherein the guide part guides the yoke notch part and the plate notch part provided at each corner part of the yoke and the plate. The jig further includes a holding portion,
After the step of coupling the magnet to the yoke,
An inner peripheral portion of the voice coil is guided by the guide member of the jig, and the voice coil is placed on the holding portion;
A diaphragm is coupled to the frame and the voice coil;
The speaker manufacturing method according to claim 1, further comprising a step of extracting a component of the speaker from the jig. A method of manufacturing a speaker in which a jig provided with a guide member having a linear guide portion is used,
A step of placing a frame on the jig;
A part of a yoke notch provided in the yoke is guided by the guide member of the jig, and the yoke is coupled to the frame;
A part of a magnet notch provided in the magnet is guided by the guide member of the jig, and the magnet is coupled to the yoke;
A method of manufacturing a speaker, comprising: a step in which a part of a plate notch provided in a plate is guided by the guide member of the jig, and the plate is coupled to the magnet. The yoke has at least two yoke cutouts;
The magnet has at least two magnet cutouts;
The plate has at least two plate notches,
The speaker manufacturing method according to claim 5, wherein the guide member guides the yoke notch, the magnet notch, and the plate notch. The bottom surface of the yoke is substantially rectangular,
The magnet is substantially rectangular,
The plate is substantially rectangular;
The speaker according to claim 6, wherein the guide member guides the yoke notch, the magnet notch, and the plate notch provided at each corner of the yoke, the magnet, and the plate. Production method. The jig further includes a holding portion,
After the step of joining the plate to the yoke,
An inner peripheral portion of the voice coil is guided by the guide member of the jig, and the voice coil is placed on a holding portion of the guide portion;
A diaphragm is coupled to the frame and the voice coil;
The method for manufacturing a speaker according to claim 5, further comprising a step of extracting a component of the speaker from the jig. The voice coil has a substantially rectangular shape,
The speaker manufacturing method according to claim 4 or 8, wherein at least two corner portions of the voice coil are guided by the guide portion. A frame having an opening;
A yoke coupled to the inner periphery of the frame and having a substantially rectangular bottom surface;
A substantially rectangular magnet coupled to the center of the bottom of the yoke;
A substantially rectangular plate coupled to a surface opposite to the coupling surface of the magnet with the yoke;
A diaphragm having an outer peripheral portion coupled to the frame;
A voice coil coupled to the bottom surface of the diaphragm and part of which is disposed in a magnetic gap between the yoke and the plate;
The yoke has a yoke notch at the periphery,
The plate has a plate cutout at the periphery,
A speaker in which a part of the yoke notch and the plate notch is arranged on the same straight line perpendicular to the bottom surface of the yoke. The yoke has at least two yoke cutout portions,
The speaker according to claim 10, wherein the plate has at least two plate notches. The yoke notch is disposed at each corner of the yoke,
The speaker according to claim 11, wherein the plate notch is disposed at each corner of the plate. The magnet has a magnet cutout at the periphery,
The speaker according to claim 10, wherein a part of the magnet cutout part is arranged on the same straight line as a part of the yoke cutout part and the plate cutout part. The speaker according to claim 13, wherein the magnet has at least two magnet cutout portions. The speaker according to claim 14, wherein the magnet cutout portion is disposed at each corner portion of the magnet.

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