JPH1127795A - Loudspeaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability in assembling and mounting of a loudspeaker for use in various audio equipment and to improve the precision in the case of assembling the speaker. SOLUTION: A connection piece 5 where a diaphragm 6 and a damper 7 are coupled with each other is connected to a voice coil 3 in this loudspeaker to allow the speaker to be assembled from its upper side so as to improve the efficiency of the assembling, the connection to an audio equipment is made at the upper side by using external connection terminals 4 provided to an outer circumference of a frame 2, and a connection piece 5 is used to position the diaphragm 6 and the damper 7, thereby improving the assembling precision.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker used for various kinds of audio equipment.

[0002]

2. Description of the Related Art A conventional technique will be described with reference to FIG.

First, when an audio signal amplified by an amplifier (not shown) such as an audio equipment is applied to a terminal 25, the signal is transmitted to a flexible tinsel wire 28 connected to the terminal 25. One end of the tinsel wire 28 is fixed to the diaphragm 26 and connected to a lead wire extending from the voice coil 27.

[0004] The voice coil 27 is provided with a magnet 23.
Are placed at the points where they intersect with the plates 22 and 24 that collect the magnetism generated from, and generate vibration in accordance with Fleming's left-hand rule in accordance with the current that is an audio signal, and transmit this vibration to the diaphragm 26. Sound is generated by creating a state of air density.

[0005]

In the above speaker,
Input section (terminal 2) from amplifier (not shown) of audio equipment
Since 5) is installed on the back of the speaker, when mounting the speaker, it is necessary to make connection with the amplifier before mounting the speaker.

Further, when the speaker is installed in a place where water drops adhere to the rear part of the speaker, there is a possibility that rust or the like is easily generated at a connection part and an exposed part of a metal, and there is a possibility that a malfunction due to poor connection may occur. I was

Also, when assembling the loudspeaker, the voice coil 27 is vibrated obliquely at the time of amplitude due to the variation in mounting the diaphragm 26 and the damper 26a.
There was a possibility of occurrence of abnormal sound due to rubbing in a.

The present invention solves the above-mentioned drawbacks of the prior art, and has a structure in which a connection point from an amplifier is provided on the top surface of the speaker and all the metal parts up to the voice coil are provided on the top surface of the speaker. It is intended to provide.

[0009]

In order to solve the above-mentioned problems, a speaker according to the present invention is provided with a magnetic circuit having a magnetic gap, a frame mounted on the magnetic circuit, and a vicinity of an outer peripheral edge of the frame. An external connection terminal, a voice coil fitted into the magnetic gap, a tinsel wire having one end previously connected to the coil of the voice coil and the other end connected to the external connection terminal, and an outer periphery of the voice coil And a diaphragm and a damper, the inner periphery of which is previously coupled to the connection piece and the outer periphery of which is coupled to the frame, so that the speaker can be assembled from above the speaker. At the same time, connection with external signal means can be performed on the upper side, and connection work is also facilitated.

Further, since the inner periphery of the damper and the diaphragm are previously connected to the ring-shaped connecting piece, the relationship between the diaphragm and the damper can be mass-produced without variation.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides a magnetic circuit having a magnetic gap, a frame mounted on the magnetic circuit, and an external connection provided near an outer peripheral edge of the frame. Terminal, a voice coil fitted into the magnetic gap, a tinsel wire having one end previously connected to the coil of the voice coil and the other end connected to the external connection terminal, and coupled to the outer periphery of the voice coil. A connection piece on a ring, a diaphragm and a damper whose inner circumference is connected to the connection piece in advance and whose outer circumference is connected to the frame, the speaker can be assembled from above the speaker, and external signals The connection with the means can be performed on the upper side, and the connection work is also facilitated.

Further, since the inner periphery of the damper and the diaphragm are previously connected to the ring-shaped connecting piece, the relationship between the diaphragm and the damper can be mass-produced without variation.

An embodiment of the speaker according to the present invention will be described below with reference to FIG. FIG. 1 is a side half sectional view of a speaker according to an embodiment of the present invention. According to FIG. 1, reference numeral 1 denotes a ring-shaped upper plate 1a and a ring-shaped magnet 1
b, a magnetic circuit including a lower plate 1c having a center pole and a magnetic gap 1d provided between the center pole and the plate 1a, 2 is a frame coupled to the magnetic circuit 1, and 3 is a magnetic circuit. The voice coil is fitted in the gap 1d.

The lead of the coil terminal wound around the voice coil 3 is connected in advance to one end of a flexible tinsel wire 3a.
It is fixed on the top with an adhesive or the like.

Reference numeral 4 denotes an external connection terminal provided on a peripheral edge of the frame 2, and the other end of the tinsel wire 3a is connected by soldering or the like. Reference numeral 5 denotes a ring-shaped connecting piece connected to the outer periphery of the voice coil 3, and the inner peripheries of the diaphragm 6 and the damper 7 are respectively connected to upper and lower steps. The outer peripheries of the diaphragm 6 and the damper 7 are connected to the frame 2.

Next, a general method of assembling the speaker according to the above embodiment will be described.
The frame 2 is connected to the magnetic circuit 1, a connecting piece 5 having the inner periphery of the diaphragm 6 and the damper 7 connected to the voice coil 3 to which the tinsel wire 3a is connected, and the voice coil 3 is connected to the magnetic gap. Fit into 1d.

Next, the connecting piece 5 is connected to the voice coil 3 and the outer circumferences of the diaphragm 6 and the damper 7 are connected to the frame, respectively.
The other end of the tinsel wire 3a is connected to the external connection terminal 4 to complete the assembly.

The connection of the tinsel wire 3a to the coil lead of the voice coil 3 in advance is more reliable than the connection of the tinsel wire 3a to the lightweight cylindrical voice coil 3 during the assembly of the speaker. This is because the connection piece 5 can connect the tinsel wire 3a to the voice coil 3 in advance.
That allows the work of inserting and connecting the diaphragm 6 and the damper 7 to the voice coil 3 due to the connection to the voice coil 3 and the work of assembling and connecting (for example, applying an adhesive) from the upper surface side. It is.

As described above, the loudspeaker according to the above-described embodiment can perform the assembling work on the upper side, and can easily connect the sound equipment and the like on the upper side very easily.

Furthermore, the positional relationship between the diaphragm 6 and the damper 7 can be regulated with high precision by the connecting piece 5, so that the quality as a speaker can be stabilized.

[0021]

As described above, the loudspeaker according to the present invention can provide a loudspeaker which is extremely workable and whose quality is stabilized.

(1) Since electrical wiring is performed on the front of the speaker, restrictions on operating conditions on the back of the speaker are reduced, and a highly reliable speaker is obtained. (2) When the speaker is attached, the cord connection from the amplifier is performed on the front of the speaker, so that the workability for the connection is improved. (3) When assembling the speaker, the distance between the diaphragm and the damper is kept constant, so that the occurrence of defects at the time of production is reduced, the strength is improved, and the input resistance is improved. And the like.

[Brief description of the drawings]

FIG. 1 is a side half sectional view of an embodiment of a speaker according to the present invention.

FIG. 2 is a side half sectional view of a conventional speaker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnetic circuit 1d Magnetic gap 2 Frame 3 Voice coil 3a Kinshi wire 4 Terminal for external connection 5 Connection piece 6 Diaphragm 7 Damper

Claims (1)

[Claims] A magnetic circuit having a magnetic gap, a frame mounted on the magnetic circuit, an external connection terminal provided near an outer peripheral edge of the frame, a voice coil fitted into the magnetic gap; A tinsel wire having one end connected to the coil of the voice coil and the other end connected to the external connection terminal, a connection piece on a ring connected to the outer periphery of the voice coil, and A speaker comprising a diaphragm and a damper, the perimeter of which is coupled to the frame and the outer periphery of which is coupled to the frame.