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JPS5782777

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DESCRIPTION JPS5782777
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a door
mounted state of a conventional in-vehicle speaker unit, FIG. 2 is a partially cutaway side view of
the in-vehicle speaker unit according to the present invention, and FIG. FIG. 4 is a cross-sectional
view showing the door mounted state. 11
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Loudspeaker frame from 12 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· ...... through hole, 23 ... ... top plate, 31 ...... space, 32 ... ... terminal mounting block, 33 ......
terminal plate, 34 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
························································································
· · · · · · · · · · · · · · · ········································ Connector.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an on-vehicle
speaker unit, and more specifically, to an on-vehicle speaker unit in which the wiring of the feed
line to the driver unit is improved, 1-.delta. = "D;" "Related. Since the mounting position of the invehicle speaker unit is the rear bar cell tray or the door, it is necessary to take measures to
prevent a short circuit accident in the driver unit portion due to the entering rainwater. When
mounted on the rear barrel tray, the back direction of the speaker unit is released to the trunk
room, so there is no need to worry about the rainwater which is used to store wet luggage in the
trunk or not to open the trunk lid in the rain. Although it is not necessary, when it is attached to
the door, rainwater and water during car washing considerably penetrate from between the glass
and the outer plate, so that water can be poured on the back of the speaker unit. There is. As
shown in FIG. 111, the conventional vehicle-mounted speaker unit has a side surface d ′ ′ one
terminal plate 1 of the speaker frame l drilled as shown in FIG. Is fixed and the end of the feed
line from the outside is connected. In this speaker unit for heavy plates, since the terminal metal
fitting 3 is the same as in the unequal state with respect to rain water, water is splashed in this
part-! -The waterproof cover 5 is covered so as not to be. In short, since the terminal fitting 3 is
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on the rear side of the diaphragm, the waterproof cover S is necessary, and the diaphragm on
which the waterproofing is applied is on the side of the side where the waterproof cover is
attached. No abnormal short circuit will occur in part 3. Therefore, in this invention, the terminal
plate in the unmatched state and the terminal fitting fixed thereto are positioned on the front
side), and the cotton thread to the voice coil is extended along the forward direction of the
diaphragm, and the speaker It is characterized in that there is no unequal power supply system
on the back side of the unit. The details of this invention will be described below with reference
to FIG. 2 and the subsequent drawings of the attached drawings. First, in FIG. 2, the symbol // is
a speaker frame, and the outer periphery of the diaphragm 12 is brazed to the speaker frame //
via an edge 13 to fix the driver unit X. ing. The driver unit J has a center ball 1 provided at the
center of the yoke 1-a center plate n and a magnetic gap, and a top plate ring arranged with 6: 4s-between the top plate ring and the yoke ↓ A through hole 22 & is bored along an axial center
hole of the center pole which is constituted by a magnet calculation held in the cylinder, and a
cylindrical shape having a space 31 of the through hole-turtle and communicating b1. The
terminal mounting base 3 is stacked on the .tau. Center pole U on the diaphragm side of the
center pole-in a pair t7.
A terminal plate 33 is fixed to one end of the terminal mount 32 and the terminal fitting 3 is
attached to this. Furthermore, one end of the terminal metal fitting 3 reference 2 wire @ a3 is
fixed, and the other end is rounded along the front surface of the diaphragm l- to the voice coil 1
of the Heuss coil bobbin j. Furthermore, the terminal fitting 34! In the space 3) of the terminal
mounting base 3, one end of the feed 1m1AI constituting the feed-in thread 参 is connected, and
the other 4 is the center pole. The connector has a connector in the through hole -a of-. Then, a
connector counselor of the external power supply 1lil gins 3 can be connected to this connector
rod. ・,! Since the in-vehicle speaker unit according to the present invention has the abovementioned configuration, when mounted on the door, as shown in FIG. The interior and the
exterior are in a divided state, and the front side of the diaphragm is connected to the single side,
and the rear side is connected to the space inside the door. Therefore, the terminal metal fitting 3
attached to the terminal mount 32 is heavily positioned, and is not affected by rain water or car
wash water which enters along the outside of the glass. As is apparent from the above
description, the on-vehicle speaker unit of the present invention is provided with a through hole
penetrating the center pole constituting the driver unit and a terminal mount having a space
continuous with the through hole. Since the feed system is led to the front side of the diaphragm
and the voice coil is fed, the terminal metal part can not be affected by the external rain water,
and the waterproofing measures are different. There is no possibility of causing a short circuit
with a strength member inside the door ρ 1 door.
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