JPH0597198U - Loudspeaker for printed wiring board - Google Patents

Abstract

(57) [Abstract] [Purpose] An object is to provide a thin loudspeaker for a printed wiring board, which is easy to assemble and can maintain an accurate positional relationship. [Structure] Insulation block 2 to be inserted and fixed in frame 14 of loudspeaker 1, and 2 to be inserted and fixed in this insulation block 2
The frame 14 is provided with a mounting hole 12 and a positioning hole 13 into which the insulating block 2 is inserted and fixed, and the insulating block 2 has a fixed column and a positioning column corresponding to the abutting surface. A recess 22 for inserting and fixing the connecting member 3, a fixing recess 221, and a through hole 222 penetrating the connecting leg 33 of the connecting member 3 are provided on the upper surface.
A hook 32 inserted into the fixed recess 221 and a connection leg 33 that is bent to penetrate the through hole 222 are provided in the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a thin loudspeaker directly attached to a printed wiring board.

[0002]

[Prior Art]

 An example of a conventional thin loudspeaker directly attached to a printed wiring board is, as shown in FIG. 5, provided with fixing legs 70 at three or four places on the periphery of a frame 10 of the loudspeaker, and an intermediate portion between the fixing legs 70. The connecting legs 60 are soldered to the connecting pieces 50 fixed with rivets or the like at both ends of the insulating plate 30 fixed with the rivets 40 in the mounting holes 20 of the parts.

[0003]

[Problems to be solved by the device]

 However, in the above-described structure, since the connecting legs 60 are individually soldered to the insulating plate 30, it is difficult to accurately solder the positions of the legs to be inserted into the printed wiring board.

Further, there are problems that the number of parts is large and the assembling efficiency is poor, and other parts are easily damaged by caulking work or the like.

It is an object of the present invention to provide a loudspeaker which solves the above-mentioned problems and is easy to assemble and can maintain an accurate positional relationship.

[0006]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and in a loudspeaker directly attached to a printed wiring board, an insulating block 2 to be inserted and fixed to a frame 14 of the loudspeaker 1 and an insulating block 2 to be inserted into the insulating block 2 are provided. It consists of two connecting members 3 that are fixed.

The frame 14 is provided with a mounting hole 12 for inserting and fixing the insulating block 2 and a positioning hole 13 formed in the peripheral portion of the mounting hole 12.

The insulating block 2 has a shape that is fixed to the upper surface of the peripheral portion of the frame 14 and projects outward from the outer periphery of the frame 14, and a fixed column that is inserted into the mounting hole 12 on the contact surface with the frame 14. 23, a positioning column 24 inserted into the positioning hole 13, and a step portion 21 aligned with the step of the abutting surface of the frame 14.

Further, on the upper surface opposite to the abutting surface, two concave portions 22 each having an open end for inserting and fixing the connecting member 3 are provided. A concave portion 221, a through hole 222 formed at a position outside the frame 14 at the other end of the concave portion 22 to a surface on the opposite side of the insulating block 2, and a central line of the concave portion 22 at the open end of the concave portion 22. And a groove 25 opened up to the position.

The connection member 3 is a member obtained by bending a plate material. When the connection member 3 is inserted into the concave portion 22, the piece hook 32 is bent downward at a position corresponding to the fixed concave portion 221, and the connecting portion protruding from the open end of the concave portion 22. 31 and a connecting leg 33 bent at a right angle so as to be inserted into the through hole 222.

[0011]

【Example】

 1 is an exploded perspective view of the loudspeaker of the present invention, FIG. 2 is a perspective view, FIG. 3 is a cross-sectional view of an insulating block, and FIG. 4 is a perspective view of the insulating block as seen from the contact surface.

The loudspeaker 1 includes a frame 14, an insulating block 2 inserted and fixed in the frame 14, and two connecting members 3 inserted and fixed in the insulating block 2.

The frame 14 is provided with a mounting hole 12 for inserting and fixing the insulating block 2 and a positioning hole 13 formed in the peripheral portion of the mounting hole 12, and the frame 14 is further printed. Fixed legs 11 for fixing to the wiring board are provided.

The insulating block 2 has a shape that is fixed to the upper surface of the peripheral portion of the frame 14 and projects outward from the outer periphery of the frame 14. A fixed column 23 that is inserted into the mounting hole 12 of the frame 14 is provided on the contact surface with the frame 14, and the tip of this fixed column 23 is prevented from coming off after being inserted into the mounting hole 12. An annular protrusion 231 is provided.

Further, the same number of positioning posts 24 as the positioning holes 13 are provided at positions corresponding to the positioning holes 13 of the frame 14, and stairs 21 are formed so as to match the steps of the contact surface of the frame 14.

Further, on the upper surface opposite to the abutting surface, two concave portions 22 having one open end for inserting and fixing the connecting member 3, and fixing on both sides of the concave portion 22 and deeper than the concave portion 22. A concave portion 221, a through hole 222 formed at a position outside the frame 14 at the other end of the concave portion 22 to a surface on the opposite side of the insulating block 2, and a center line of the concave portion 22 at the open end of the concave portion 22. A groove 25 opened up to the position is provided.

The connecting member 3 is a member obtained by bending a plate material, and has a piece-like hook 32 bent downward at a position corresponding to the fixed recess 221 when inserted into the recess 22. This piece-shaped hook 32 is provided with hook-shaped projections facing upward on both sides, and is constructed so as not to easily come off after being inserted.

Further, a connecting portion 31 is provided so as to project from the open end of the concave portion 22, and the opposite side is a connecting leg 33 bent at a right angle so as to be inserted into the through hole 222.

[0019]

[Effect of the device]

 As described above, since the fixed leg 11 and the connection leg 33 are manufactured in a fixed shape by a mold or the like when manufacturing the parts, there is no position unevenness due to manual work at the time of assembly. Easy to insert.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a loudspeaker according to the present invention.

FIG. 2 is a perspective view after assembly.

FIG. 3 is a cross-sectional view of an insulating block.

FIG. 4 is a perspective view of an insulating block as viewed from the contact surface.

FIG. 5 is an exploded perspective view of an example of a conventional loudspeaker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Loudspeaker 12 Mounting hole 13 Positioning hole 14 Frame 2 Insulating block 21 Step part 22 Recessed part 221 Fixed recessed part 222 Through hole 23 Fixed pillar 24 Positioning pillar 25 Groove 3 Connection member 31 Connection part 32 Piece-shaped hook 33 Connection leg

Claims (1)

[Scope of utility model registration request] 1. A loudspeaker mounted directly on a printed wiring board, comprising: an insulating block which is inserted and fixed in a frame of the loudspeaker; and two connecting members which are inserted and fixed in the insulating block. A mounting hole for inserting and fixing the insulating block and a positioning hole formed in the peripheral portion of the mounting hole are provided, and the insulating block is arranged from the outer periphery of the frame when fixed to the upper surface of the peripheral portion of the frame. It has a shape that protrudes to the outside, and a fixed pillar inserted into the attachment hole on the contact surface with the frame, a positioning pillar inserted into the positioning hole, and a step on the contact surface of the frame. Two recesses each having an open end for inserting and fixing the connecting member on the upper surface of the insulating block, and fixing recesses that are in contact with both sides of the recess and are deeper than the recesses. A through hole formed at a position outside the frame at the other end of the recess to the opposite surface of the insulating block; and a groove formed at the open end of the recess to the position of the center line of the recess. The connecting member is a member obtained by bending a plate material, and when inserted into the concave portion, the hook is bent downward at a position corresponding to the fixed concave portion, and the connection protruding from the open end of the concave portion. A loudspeaker for a printed wiring board, comprising: a portion and a connecting leg bent at a right angle so as to be inserted into the through hole.