JPH02241297A - Speaker - Google Patents

Abstract

PURPOSE:To rationalize production and to make a speaker thin by overlapping two gold thread wires between two dampers, integrally molding the gold thread wires and using a gold thread wire damper which is made compound and integral. CONSTITUTION:The upper part of a voice coil 23 is coupled to the central part of a diaphragm 22. The intermediate part of the voice coil 23 is held by a gold thread wire damper 24, which is formed by inserting two gold thread wires 25 between upper and lower damper 24a and 24b, and fitted to a magnetic gap 26 of a magnetic circuit 19 without being eccentric. A lead wire 23a of the voice coil 23 is connected with one end of the gold thread wire 25 on the outer periphery of a bobbin 23b and fixed by an adhesive 30 and the other end is connected to an eyelet 28 of a terminal board 27. Thus, since conventional in-air wiring is changed to fixed wiring, mechanization can be facilitated and wiring work can be rationalized. Then, the speaker can be made thin.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to speakers used in various types of audio equipment.

Conventional technology Generally, a speaker is constructed as shown in FIG.

That is, one note 1. to pre 2 with center pole. Ring-shaped magnet 2. A frame 4 is attached to the magnetic circuit formed by the same ring-shaped top plate 3.
The peripheral edge of the diaphragm 1o is adhesively bonded together with the gasket 12 to the periphery of the frame 4, and the diaphragm 1o is
The voice coil 7 is bonded and fixed to the center of the diaphragm 10, the voice coil 7 is fitted into the magnetic gap 14 without eccentricity, the dust cap 11 is attached to the upper center of the diaphragm 10, and the voice coil 7 is attached to the middle part between the voice coil 7 and the frame 4. Eyelet 6 tightened to terminal fiber 6 for installation
and gold thread wire 8 are connected with solder 13. The conventional gold thread wire 8 has an aerial wiring edge shape Ll? between the damper 9 and the diaphragm 1o, as shown in FIG. One end is connected to the lead wire 7a of the voice coil 7 and the coil bobbin 7.
After being connected with solder at the peripheral edge of b, they are fixed with adhesive, and two wires are drawn out to the eyelets 6, respectively. Further, a damper 9 disposed around the periphery of the coil bobbin 7b is attached to the frame 4.

Problem to be Solved by the Invention 3/\-7 However, with the structure shown in Fig. 8, the gold thread wire 8 is wired in the air and is difficult to set in a certain direction, so the wiring work becomes a manual work, which has been a long-standing problem. Rationalization was difficult, and there were many issues with improving productivity, stabilizing quality, and improving reliability, which caused major problems in speaker manufacturing.

Therefore, the present invention improves these drawbacks, and is a speaker that can streamline wiring work in particular, and is thin, high-value-added, and high-productivity that can easily respond to high-mix, low-volume production and meet space-saving needs. The purpose is to provide speakers for

Means for Solving the Problems In order to solve the above problems, the present invention provides two gold thread wires.
The structure uses a gold thread damper that is superimposed and integrally molded between two dampers to form a composite and integrated structure.

Through the composite integration of the gold thread wire and the damper, which has more than the function,
It is possible to streamline production and make speakers thinner.

Embodiment As shown in FIGS. 1 to 3, the present invention includes a ring-shaped magnet 1 on a plate 16 having a center pole 15.
A magnetic circuit 19 is formed by laminating and coupling γ and the top play 1-18.
and connect the frame 2o to this magnetic circuit 19,
The peripheral edge of the diaphragm 22 is connected to the peripheral edge of the frame 20 together with the gasket 21 by adhesive or the like, the upper part of the voice coil 23 is connected to the center of the diaphragm 22, and the middle part of the voice coil 23 is connected to the upper damper. The magnetic circuit 19 is held by a gold thread damper 24 formed by sandwiching two gold thread wires 26 between the lower damper 242L and the lower damper 24b.
The lead wire 2]a of the voice coil 23 and one end of the gold thread wire 25 are connected at the outer periphery of the bobbin 23b and fixed with adhesive 30, and the other end of the gold thread wire 25 is attached to the frame. Terminal board 2 provided on 20
7, and a dust cap 29 is attached to the upper surface of the central portion of the diaphragm 22.

6/\-7 The gold thread damper 24 is as shown in FIGS. 4a and 4b.
Two pieces of gold thread wire 25 - 24a.

After being placed between the lower dampers 24b, they are bonded together by simultaneous thermoforming to form an integrated structure.

FIG. 5 shows the structure in a perspective view. In Fig. 2, the voice coil 23 and the gold thread wire Dannoku-24 are combined and electrically wired to the eyelet 28 of the speaker terminal board 27.Especially, the eyelet 28 is connected using the conventional method in order to further ensure rationalization. This is an improvement in which the hole for the gold thread wire is eliminated and the shape of the eyelet 28 is changed to a drilled hole terminal to facilitate joining and connection. FIG. 3 is a sectional view of the joint between the lead wire 23a of the voice coil 23 and the gold thread wire 25. FIG. Especially bobbin 23b and gold thread damper 2
4 and the joint neck part are completely fixed with solder connection and adhesive 3O, and the - layer has a strong bond, and even in the event of a large amplitude, the bond is broken and a highly reliable method is adopted that prevents the risk of disconnection. are doing.

In this way, the gold thread wire 26 and the upper and lower dampers 241L +24
Gold wire Dan integrated with b <-24 6/\-
By changing the conventional aerial wiring to fixed wiring, mechanization becomes easy, and the gold thread wire 26 can be replaced with the eyelet 2.
By changing the shape of the wire through hole 8 to a drilled hole eyelet and making it easier to connect, the wiring work can be completely streamlined.Furthermore, there is no need for the dimensions to draw out the gold thread wire from the conventional voice coil, which improves product design. This contributes to the realization of thinner speakers and improved speaker efficiency. Especially when it comes to improving quality and reliability.
As a countermeasure against disconnection of the joint, the gold thread wire 25 and the voice coil lead wire 232L are joined and fixed at the neck part where the gold thread wire damper 24 joins, so that a structure with high quality and reliability can be obtained. It also facilitates unique assembly rationalization, and excels in manufacturing that moves away from line production and supports high-mix, low-volume production.

Therefore, by integrating the gold thread wire 25 and the upper and lower dampers 24 & 24b, the number of man-hours is greatly reduced, productivity is improved by streamlining assembly, and high quality is achieved by eliminating disconnections at the joints.

This realizes a highly reliable speaker and has high practical value.

Effects of the Invention 71\-7 As described above, the present invention makes unmanned speaker assembly, which has been a long-standing problem, and facilitates long-time operation, thereby achieving unprecedented rationalization of production. In addition, by improving the efficiency of the speaker and making it thinner, it becomes easier to meet the need for space saving.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the speaker of the present invention, FIG. Figure 5 is an explanatory view showing the processing process of the same gold thread wire damper, Figure 6 is a perspective view of the same, Figure 7 is a sectional view showing the structure of a general ferrite type speaker, and Figure 8 is a general FIG. 3 is a perspective view showing a state in which the gold thread wire is extended to the terminal. 6...Eyelet, 6fL...Key hole eyelet, 7...Voice coil, 71!・・・
・Lead wire, 7b...Bobbin, 8...
Gold thread wire, 9...damper, 9a...upper damper, 9b...lower damper, 18...
...Gold wire damper, 19...Solder, 2o
······glue. Figure Figure Figure Porridge Figure

Claims (1)

[Claims] A diaphragm is built into a frame connected to a magnetic circuit, a voice coil is connected to this diaphragm, the middle part of this voice coil is supported by a damper, and the coil part of the voice coil is fitted into the magnetic gap of the magnetic circuit. A gold thread wire sandwiched between two overlapping upper and lower dampers is wired in the middle of the damper and connected to each of the two lead wires from the voice coil, and a gold thread wire led out from between the outer periphery of the damper. A speaker that is made by electrically wiring it to a terminal board.