JPH07274286A - Speaker - Google Patents

Abstract

PURPOSE:To improve the water resistance of the speaker by leading out signal wires used to drive a voice coil along the surface of a diaphragm and connecting the wires to an electric connection member forming an input terminal of the speaker unit provided onto a hard paper sheet on an edge of the diaphragm. CONSTITUTION:Torus upper and lower hard paper sheets 12, 14 are provided on an outer circumferential ridge of an edge 16 of the speaker unit 1. The paper sheets 11 are made of compressed paper materials mainly and used to prevent the edge 16 or the like from being deformed when the speaker unit 1 is placed on a work base or at its transportation. The signal wire 15a to a voice coil 6 is led out along the surface of the diaphragm 9 and connected to a projection 18 at the inside of the torus conductive plate made of a metal with high conductivity such as a copper placed between the upper and lower hard paper sheets 12, 14 with solder. A flexible lead wire 15b is connected to a projection at the outside of the conductive plate 13 and connected to a connector 17 of the acoustic equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker, and more particularly to a speaker having improved waterproofness.

[0002]

2. Description of the Related Art FIG. 7 is a sectional view showing a conventional waterproof structure for a vehicle-mounted speaker. The magnetic circuit of the speaker unit 71 is an outer magnet type in which an annular magnet 74 is sandwiched between a pole piece 72 and a plate 73, and a frame 75 is attached to the plate 73. Pole piece 72 and plate 7
The bobbin 7 around which the voice coil 76 is wound
7 is disposed by being supported by a damper 78 attached to the frame 75 so as to be displaceable in the axial direction. The base end of the diaphragm 79 is bonded to the front end of the bobbin 77, and the dust cap 80 is bonded to the center of the front surface of the diaphragm 79. The outer peripheral edge of the vibration plate 79 is a sheet of paper 81.
It is adhered to the inner peripheral edge of the edge 82 sandwiched by the frame 75.

The signal line 83a to the voice coil 76 is drawn out along the surface of the diaphragm 79 and is soldered to the eyelet 84 provided on the diaphragm 79. Lead wires 83b, 8
3c is realized by a so-called tinsel wire which is highly flexible. One end of a lead wire 83b is connected to the eyelet 84. The other end of the lead wire 83b is connected to one end of a terminal plate 85 provided on the frame 75. Lead wire 83
One end of c is connected to the other end of the terminal plate 85, and the lead wire 83
The other end of c is connected to a connector 86 for connecting to a signal line from an audio equipment body such as a radio or tape player. Then, a speaker cover 87 for preventing water droplets from splashing on the speaker unit 71 is attached to the frame 75.

[0004]

In the above-mentioned conventional technique, water drops from above the speaker unit 71 inside the door can be prevented by the speaker cover 87, but inside the door, water will only enter the speaker unit 71 from above. However, since water is sprayed from all directions such as from below, it is not possible to sufficiently protect the speaker unit 71 from water and prevent the speaker unit 71 from being corroded.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems, and in a speaker in which a signal line for driving a voice coil is drawn from a speaker unit to the outside, An electric connection member for drawing out a signal line for driving the voice coil along the surface of the diaphragm and forming an input terminal of the speaker unit arranged in the arrow paper provided on the edge of the diaphragm. It is connected to the.

Further, the arrow paper is divided into two in the thickness direction,
A conductive plate is sandwiched between the divided arrow sheets to form the electrical connection member. Further, the arrow paper is divided into two in the thickness direction, and a connector is sandwiched between the divided arrow papers to form the electrical connection member. Further, in a speaker system in which a signal line for driving the voice coil is drawn out from the speaker unit, the signal line for driving the voice coil is drawn out along the surface of the diaphragm and It passes through the arrow paper provided on the edge and is drawn out of the speaker system.

[0007]

An electrical connecting member is provided in which a signal line for driving a voice coil is drawn out along the surface of the diaphragm and forms an input terminal of a speaker unit provided on an arrow paper provided on an edge of the diaphragm. It is connected to the. Therefore, the signal line and the electrical connection member are not arranged on the back surface side of the speaker unit, and the waterproof effect against water drops and the like from the back surface side of the speaker unit is obtained.

The arrow paper is divided into two in the thickness direction,
The conductive plate sandwiched between the divided arrow sheets operates as an electrical connection member. Further, the arrow paper is divided into two in the thickness direction, and the connector sandwiched between the divided arrow papers operates as an electrical connection member. Further, a signal line for driving the voice coil is drawn out along the surface of the diaphragm, passes through the arrow paper provided on the edge of the diaphragm, and is drawn out of the speaker system. Therefore, the signal line is not arranged on the back surface side of the speaker unit, and a waterproof effect against water drops and the like from the back surface side of the speaker unit is obtained.

[0009]

1 is a sectional view of a speaker system having a structure in which a conductive plate is used as an electrical connecting member, as an embodiment of the present invention. The magnetic circuit of the speaker unit 1 is an outer magnet type in which an annular magnet 4 is sandwiched between a pole piece 2 and a plate 3, and a frame 5 is attached to the plate 3.
A bobbin 7 around which the voice coil 6 is wound is arranged between the pole piece 2 and the plate 3 so as to be axially displaceable by a damper 8 attached to the frame 5. The base end of the diaphragm 9 is bonded to the front end of the bobbin 7, and the dust cap 10 is bonded to the center of the front surface of the diaphragm 9. The outer peripheral edge of the diaphragm 9 is
It is adhered to the inner peripheral edge of the edge 16 sandwiched by the frame 5 and the arrow paper 11 formed of the upper arrow paper 12, the lower arrow paper 14 and the conductive plate 13. Further, on the outer peripheral edge of the edge 16, an annular upper arrow paper 12 and lower annular arrow paper 14 are provided. This arrow paper 11 (upper arrow paper 11, lower arrow paper 13)
Is mainly compressed paper and is provided for the purpose of preventing the speaker unit 1 from being pressed and deformed when the speaker unit 1 is placed on a work table or during transportation.

The signal line 15a to the voice coil 6 is formed of a highly conductive metal such as copper or silver that is drawn out along the surface of the diaphragm 9 and is sandwiched between the upper arrow paper 12 and the lower arrow paper 14. It is connected to the protrusion 18 inside the annular conductive plate 13 by soldering or the like. One end of a lead wire 15b, which is realized by a so-called tinsel wire having high flexibility, is connected to the protrusion 19 on the outer side of the conductive plate 13 by soldering. The other end of the lead wire 15b is connected to a connector 17 for connecting to a signal wire of an external audio device.

FIG. 2 is a perspective view showing the structure of the arrow paper 11. The arrow paper 11 is formed of an upper arrow paper 12 and a lower arrow paper 14 formed of compressed paper and two conductive plates 13a and 13b sandwiched by the lower arrow paper 14 and the conductive paper 13
Projections 18a and 18b to which the signal line 15a is connected and projections 19 to which the lead wire 15b is connected to a and 13b, respectively.
a and 19b are provided.

FIG. 3 is a view showing an example of the shape of the conductive plate 13. The conductive plate shown in FIG. 3A is a semi-circular conductive plate 13
Protrusions 18a and 18b for connecting the signal line from the voice coil are provided inward of one end of the main body of a and 13b, and outwardly of one end of the semi-arcuate conductive plate for connection with an external acoustic device. Projection 19 for connecting to the lead wire of
3B, the ratio of the arc lengths of the main body portions of the conductive plates 13a and 13b is changed, and the protrusion amounts of the protrusions 18a and 18b are changed as shown in FIG. 3B. The shape can be changed according to the mounting conditions of the speaker and the like.

Further, as shown in FIG. 3 (c), three conductive plates (13a, 13b, 13c) are provided, and projections 20a, 20b are further provided on the projections 20a, 20b for adjusting a network circuit and sound quality. The filter circuit or the like may be connected. If the protrusions 20a and 20b are short-circuited by a conductor, they can be electrically connected as shown in FIG.
The configuration is similar to that of (b).

FIG. 4 shows another embodiment of the present invention. In this embodiment, a connector is used as an electrical connecting member and a high-frequency speaker is added to form a 2-way speaker system. For the same configuration as in FIG.
The same reference numerals are given and the description is omitted. The signal line 15a to the voice coil 6 is drawn out along the surface of the diaphragm 9 and is sandwiched between the upper arrow paper 42 and the lower arrow paper 44.
3 is connected. The high-frequency speaker 46 covers the front surface of the speaker unit 1 and is fixed to the speaker grill 34 for protection and decoration. The lead wire 48 for the input signal drawn from the high-pitched speaker 46 is a connector 49.
Is connected to the terminal by soldering or the like. Connector 49
Has a first terminal connectable to a connector 43, a second terminal connectable to a connector 51 connected to a signal cord 50 from an external audio device, and a third terminal connected to a lead wire 48 of a treble speaker 46. A connector connected to the terminals, a circuit for dividing a signal band, a so-called network circuit, is built in between the first, second and third terminals, and a high frequency sound signal is supplied to the high frequency speaker 46. The speaker unit 1 is supplied with a signal of middle low-pitched sound or full-range sound.
It should be noted that the connector 43 and the connector 51 are connectable, and when the high-pitched speaker 46 is removed, the connector 51 is directly connected to the connector 43 so that a signal from an external audio device can be supplied to the speaker unit 1. Therefore, it is not necessary to replace the connector when attaching and detaching the high-pitched speaker 46.

FIG. 5 is a perspective view showing the relationship between the arrow paper 41 and the connector 43. The arrow paper 41 is composed of an upper arrow paper 42 and a lower arrow paper 44. The upper arrow paper 42 has a groove 52 and the lower arrow paper 44 has a groove 52. Then, the grooves 52 and 54 of the upper arrow paper 42 and the lower arrow paper 44 are overlapped with each other, and the connector 43 is sandwiched between the holes formed by the grooves 52 and 54.
Is formed. The position and the number of connectors may be arbitrarily set depending on the mounting conditions of the speaker unit 1, the mounting of network components, and the like.

As described above, according to the present invention, even when the speaker system is upgraded (multi-way speaker), it is only necessary to replace the speaker grill and connect the connector, and the difficult work such as removing the door trim can be omitted. It is possible to improve workability. Figure 6
[Fig. 4] is a configuration diagram showing another embodiment of the present invention, which is an embodiment in which an electric connecting member is not used. The same components as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

In the present embodiment, the signal line 15a to the voice coil 6 is drawn out along the surface of the diaphragm 9,
It is connected to a connector 62 for connection with a signal line of an external acoustic device by soldering or the like through a signal line passage hole 63 provided in the arrow paper 61. In addition, the signal line passage hole 63 is provided with the arrow paper 6
1 After forming, it may be opened with a drill or the like. As described above, according to the present embodiment, as described above, the signal line is drawn out on the front surface of the diaphragm, and the connector is also on the front surface of the speaker. It can be protected and there is no risk of corrosion. In addition, the tinsel wire does not pass in front of the arrow paper, and there is no fear of damage or disconnection of the signal line. In addition, a hole for signal line 6
Only by providing 3, it can be realized without increasing the number of parts.

[0018]

As described above in detail, according to the speaker system of the present invention, since the signal line and the electric connection member are not arranged on the back surface side of the speaker unit, the signal line and the electric connection member are connected to the water inside the door. It can protect against blow-up and prevent corrosion. In addition, since the signal line does not pass in front of the arrow paper, the signal line is not damaged when the speaker is attached and force is applied between the attached member and the arrow paper. It is also possible to prevent disconnection.

[Brief description of drawings]

FIG. 1 is a sectional view of a speaker showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing the structure of the arrow paper 11 according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram showing the shape of a conductive plate.

FIG. 4 is a sectional view of a speaker showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing the structure of the arrow paper 41 in the second embodiment of the present invention.

FIG. 6 is a sectional view of a speaker showing a third embodiment of the present invention.

FIG. 7 is a sectional view showing the structure of a conventional waterproof speaker.

[Explanation of symbols]

 11, 41, 61 ... arrow paper 12, 32 ... upper arrow paper 14, 34 ... lower arrow paper 12 ... conductive plate 15a, 83a ... signal line

Claims (4)

[Claims] 1. In a speaker in which a signal line for driving a voice coil is drawn out from a speaker unit, a signal line for driving a voice coil is drawn out along a surface of a diaphragm and the vibration is generated. A speaker characterized in that the speaker is connected to an electric connection member forming an input terminal of the speaker unit arranged in an arrow paper provided on an edge of the plate. 2. The speaker according to claim 1, wherein the arrow paper is divided into two in the thickness direction, and a conductive plate is sandwiched between the divided arrow papers to form the electric connection member. 3. The speaker according to claim 1, wherein the arrow paper is divided into two in the thickness direction, and a connector is sandwiched between the divided arrow papers to form the electric connection member. 4. In a speaker in which a signal line for driving a voice coil is led out from a speaker unit, a signal line for driving a voice coil is led out along a surface of a diaphragm and the vibration is generated. A speaker characterized in that it is drawn out of the speaker by passing through the arrow paper provided on the edge of the plate.