JP3531261B2 - Speaker - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker used for various kinds of audio equipment. 2. Description of the Related Art FIGS. 2A and 2B are a front sectional view and a bottom view, respectively, showing the structure of a conventional speaker. In the same figure, reference numeral 1 denotes a frame formed by forming a metal plate into a desired shape. Reference numeral 2 denotes a columnar magnet coupled to the upper surface of the central portion of the frame 1. Reference numeral 3 denotes a plate coupled to the upper surface of the magnet 2.
And a magnetic circuit having an annular magnetic gap 4 formed between the outer peripheral surface of the frame 1 and the inner surface of the upright wall of the frame 1. A voice coil 5 is fitted in the magnetic gap 4 without eccentricity, and 6 is a voice coil 5
And a diaphragm 7 whose outer peripheral portion is connected to the periphery of the frame 1. A lead wire connecting portion 7 a connects a pair of lead wires drawn out from the voice coil 5.
And a terminal board provided with a pair of external terminal connection portions 7b. [0004] The conventional loudspeaker configured as above is
The speaker input line (not shown) prepared in the device is connected to a pair of external terminal connection portions 7b by a method such as soldering, and used while being incorporated in a device using the speaker. However, in the above-mentioned conventional configuration, in order to incorporate the speaker into a device using the speaker and connect it, the speaker input line prepared in the device is soldered to the external terminal connection portion 7b. This soldering work is not only difficult as the size of the speaker is reduced, but also in the case of a small speaker, the lead wire connecting portion 7a and the external terminal connecting portion 7b formed on the terminal plate 7 are screened. Some are formed by printing or the like, and have a quality problem that the terminal plate 7 may be damaged if soldering is performed for a long time. In order to solve such a problem, a means using a terminal plate provided with a connection terminal formed by processing a metal plate is also used. Since each connection is different, a special design is required, and it is impossible to share the cost, which increases the cost. The present invention solves such a conventional problem,
It is an object of the present invention to provide a low-priced speaker that is easily connected to a device and has a versatile terminal structure. [0008] In order to solve the above-mentioned problems, a speaker according to the present invention is provided with a fitting portion into which the outer peripheral portion of the speaker frame fits, and a sound emission hole in the center of the plane portion. And one end abuts the terminal plate of the speaker,
In this configuration, a protector having a concave cross-section and having a pair of connection terminals having a spring property projecting to the outside at the other end is mounted on the outer periphery of the speaker. According to this structure, when a speaker is attached to a device using the speaker and connected to the protector, a pair of spring-like connection terminals mounted on the protector are connected to the input line of the device or the input line. It is only necessary to make contact with the terminal to which it is connected, and not only can it be reliably connected with a simple operation, but also it can be flexibly adapted to the input line and terminal structure on the device side, so that it is highly versatile. An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are a front sectional view and a bottom view, respectively, showing the structure of a speaker according to the present embodiment. In FIG. The parts having the same configuration as the speaker are shown and assembled to form a speaker unit, and detailed description thereof will be omitted. Reference numeral 8 denotes a protector having a concave cross section fitted to the outer peripheral portion of the frame 1 of the speaker unit. The protector 8 has a flat portion covering the front surface of the diaphragm 6 of the speaker unit with a predetermined gap. In addition, a sound emission hole 8a is provided to guide sound waves generated from the diaphragm 6 to the outside. A pair of connection terminals 9 having a spring property is mounted on a part of the periphery of the protector 8, and one end of the connection terminal 9 is connected to an external terminal connection portion 7b of the terminal plate 7 of the speaker unit. The connection terminals 9 are crimped and electrically connected using spring characteristics, and the other end of the connection terminal 9 is configured to protrude outward on the lower surface side of the speaker unit. It is configured so as to be able to bend by utilizing the above. The loudspeaker according to the present embodiment configured as described above works on a device to which the loudspeaker is attached, and also has a spring input terminal provided on the device or a terminal connected to the loudspeaker input line. By crimping the connection terminal 9 having this characteristic using the spring property, it is possible to make an electrical connection, and the connection can be made very easily and securely, and the terminal is not soldered. The plate 7 is not damaged and the reliability is excellent. Further, the speaker unit and the terminal board 7
Even if the outer shape of the frame 1 is the same, the protector 8 to which the connection terminal 9 having the spring property is attached can be used even if the shape is different. It is also possible to realize standardization of parts and reduce total cost. As described above, the speaker according to the present invention is
The speaker unit is fitted in a protector with a concave cross section to which a pair of connection terminals having a spring property is attached, making it extremely easy to connect to the speaker input line on the device side when incorporating this speaker into the device to be mounted. Not only will you be able to connect with high reliability,
The present invention exhibits high versatility that it can be attached to a device using the protector, even for different speaker units, and has an excellent effect of contributing to total cost reduction.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a) is a front sectional view showing a configuration of a speaker according to an embodiment of the present invention, (b) is a bottom view thereof, and FIG. 2 (a) is a front view showing a configuration of a conventional speaker. [Description of References] 1 Frame 2 Magnet 3 Plate 4 Magnetic gap 5 Voice coil 6 Diaphragm 7 Terminal plate 7a Lead wire connection 7b External terminal connection 8 Protector 8a Sound emission hole 9 Connection terminal

Claims (1)

(57) Claims 1. A magnetic circuit having a magnetic gap formed therein, a frame having the magnetic circuit connected thereto, and a voice having an outer peripheral portion connected to a peripheral edge of the frame and being fitted into the magnetic gap. A speaker unit composed of a diaphragm coupled around a coil, a terminal plate coupled to the frame for connecting a pair of lead wires drawn from the voice coil, and an outer peripheral portion of a frame of the speaker unit are fitted. A pair of connection terminals having a resilient shape in which a sound emitting hole is provided in the center of the plane portion, one end of which is in contact with the terminal plate of the speaker unit, and the other end is protruded to the outside. And a speaker comprising a protector having a concave section in which the speaker unit is fitted.