JPS59148499A - Speaker - Google Patents

Abstract

PURPOSE:To complete a radiator system by a speaker itself by using the radiator in common use with a protecting plate of a diaphragm. CONSTITUTION:When a high input is applied to the speaker, a heat generated in a voice coil 1 moves to a heat pipe 2 via a center pole 3, is delivered to the radiator 14 quickly and discharged into external air. In case of a woofer especially, since the amplitude of the diaphragm 9 is large and the air flow produced by the vibration of the diaphragm 9 cools forcibly the radiator 14 in common use with the protecting plate on the entire face of the diaphragm 9, the heat dissipation effect is high. Thus, the temperature rise of the voice coil 1 is suppressed, then the decrease in the sound pressure level due to the heating of the voice coil and a change for disconnection are decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electrodynamic speaker in which a C heat dissipation means is coupled to a field part via a heat vibrator.

Conventional configuration and its problems A conventional general speaker C does not have a separate heat dissipation means as shown in FIG. In this case, when a high input is applied to the speaker, the voice coil 1 generates heat, causing the impedance to drop in the IC level, or in extreme cases, the voice coil 1 may become disconnected.

As shown in Figure 2, heat vibrator 2 is used as a heat dissipation means.
It has been proposed that the center ball 3
When the connected heat vibrator 2 is guided to the back of the speaker and the speaker is installed in the cabinet 4,
The heat radiator 5 is located inside the cabinets 1 to 4 and cannot directly contact the outside air, so its heat radiation effect is low. Especially Kihinet 4
If it is a closed type, the cold N1 effect is even lower because air is not exchanged. Expose the heat sink ε3 to the outside air υ
In order to do so, it is necessary to set an angle on the outside of the kitoji net 4. Therefore, as shown in Fig. 3, the heat vibrator 2 is attached to the cabinet 1 by passing 4 straight through it, and it is combined with the heat sink 5 attached to the back of the heat sink 1-4, or as shown in Fig. 4. Fold the heat vibrator 2 into a U-shape as shown.
C, i-F is attached to the front, top, or side of
A complicated mounting structure was required to connect the radiator 5 to the radiator 5. In Fig. 1, 6 is a magnet, and 7 is a magnet.
is the plate, 8 is Freno 1.91 diaphragm, 10 is 1
Tsuji, 11 is gasket, 12 is GJ damper, 13 is center cap C.

OBJECTS OF THE INVENTION The present invention overcomes the drawbacks of the prior art and provides a speaker that has a simple structure and can efficiently dissipate heat generated in the voice coil when input is applied to the speaker. purpose.

Structure of the Invention In order to achieve the above object, the speaker of the present invention comprises a radiator made of a material with high thermal conductivity, which is placed in front of the diaphragm and which also serves as a protection plate for the diaphragm, and a field section. The heat vibrator has one end inserted into a hole formed in a center ball to be thermally coupled to the heat vibrator, and a heat vibrator whose other end is coupled to the heat dissipation section by piercing the voice call bobbin.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 5 is a sectional view of a d3L speaker according to an embodiment of the present invention, and FIG. 6 is a sectional view of a speaker system using the same speaker. Components are given the same reference numerals.

Reference numeral 14 denotes a heat radiator which also serves as a protection plate for the diaphragm 9, and is porous so as not to affect the acoustic characteristics and to provide a large heat radiation area. In addition, it is made of a material with high thermal conductivity to improve heat dissipation characteristics, and its peripheral portion is fixed between the frame 8 and the gasket 11 via a heat insulating material 16. One end of the heat vibrator 2 is fixed at the center of the radiator 14 via a thermal joint 15, and the other end is fitted and fixed into a hole of the center ball 3 via the thermal joint 15. Further, a flexible sealing material 11 is attached to the portion where the heat vibrator 2 covers the center cap 13 n times to ensure dustproofing and airtightness.

In the above configuration, the heat generated in the voice coil 1 when an input is applied to the speaker moves through the center ball 3 to the heat vibrator 2, is immediately transmitted to the radiator 14, and is emitted to the outside air. Especially in the case of a bass speaker, since the amplitude of the diaphragm 9 is large, the air flow generated by the vibration of the diaphragm 9 forces the radiator 14, which also serves as a protection plate, on the entire surface of the diaphragm 9. Because of the cold M1, the heat dissipation effect is higher. Therefore, the temperature range of the voice coil 1 is suppressed, so the sound pressure level can be lowered by the heat generation of the voice coil 1, and the sound pressure level is lower than the conventional heat dissipation means. The chances of wire breakage are reduced.Also, since the heat dissipation system for the speaker has been completed in China and Germany, there is no need for any special work on the Kitohinet 4 when it is assembled into the cabinet 4 as shown in Figure 6, and there is no need for a heat dissipation system. Since the heat sink 14 is exposed to the outside, the heat dissipation effect after installation is still high.Furthermore, since the heat sink 14 also functions as a protection plate for the diaphragm 9, the investment effect as a component is also high.

In addition, legal join i ~ 134; L, Pinter Paul 3
Alternatively, for the purpose of increasing the heat resistance of the radiator 14, pipe 1 and pipe 2, the heat insulating material 16 is used to
Both are used for the purpose of preventing heat and heat interference.

In addition, in the embodiment described in -, a speaker equipped with a horn-shaped vibration root as shown in FIG. Of course, the same effect can be achieved with 4q.

As described in detail, according to the present invention, even when high input is applied to the speaker, the temperature caused by heat generation of the voice coil can be efficiently suppressed. It is possible to effectively prevent a drop in the sound pressure level and the occurrence of broken lines due to the impedance jacket (impedance jacket).Also, a speaker system with such effects can be realized without using a specially crafted cabinet, and it is inexpensive. It was made and cost 1q.

Furthermore, since the heatsink also serves as a protection plate for the speaker diaphragm, the investment effect as a component is high.

[Brief explanation of the drawing]

Figure 1 shows a conventional □ special heat dissipation means. Figures 2 to 4 are cross-sectional views of a speaker system using a conventional heat vibrator.
The figure is a sectional view of a speaker (-) according to an embodiment of the present invention.
FIG. 6 is a sectional view of a speaker system i using speakers d3 in one embodiment of the present invention. 1...Voice coil, 2...Heat vibe, 3...Center ball, 9...Vibration plate, 14...Radiator agent Mori
Yoshihiro MotoFigure 1 1 2゜ Figure 3 4 Figure 4 □Eng. -1)\. Figure 5, Yunno 2 π ノ

Claims (1)

[Claims] 1. A radiator made of a material with a high heat transfer ratio that is placed in front of the diaphragm and also serves as a protection plate for the diaphragm, and one end attached to the hole formed in the center ball that constitutes the field part. is inserted and thermally coupled, and the voice coil bobbin is exposed to the surface of 11! ! A speaker whose pane includes a heat vibrator combined with the radiator.