JPH01233999A - Method of wiring voice coil lead for speaker - Google Patents

Abstract

PURPOSE:To prevent production of disadvantage due to heat of a voice coil lead onto a diaphragm by leading the voice coil lead of the voice coil without in contact with the front of rear face of the diaphragm and connecting the tip to a tinsel wire. CONSTITUTION:The voice coil lead 4a is led out slightly from the forward position from the connection between the bobbin 4a and the diaphragm 1. Then the lead is led out toward the radial outer circumference of the diaphragm 1 in a floating state to the front face of the diaphragm, that is, noncontact state and connected to one end of the tinsel wire 2 projected at the front face of the diaphragm. Thus, even if a large voice current flows to the wire 2 and the voice coil lead 4a is heated, since the voice coil lead 4a is floated from the diaphragm 1, the diaphragm 1 is not baked and then the danger of catching fire is prevented. Moreover, even if the voice coil lead 4a is heated and welded off, no damage is given to the diaphragm 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of wiring a voice coil lead for a speaker.

(Prior Art) A voice coil lead of a speaker is drawn out to the outside and connected to a tinsel wire or the like.

In this case, as shown in FIG.
a' is usually extended over the front surface of the diaphragm 1'.

(Problem to be Solved by the Invention) As described above, in the conventional device, since the voice coil lead 4a' is in contact with the diaphragm 1' either directly or through a thin insulating tape, the voice coil lead 4a' is in contact with the voice coil of the speaker. When the power increases and the voice coil lead 4a' generates heat 7, the diaphragm 1' is scorched, and there is a danger that it may catch fire. This is mainly due to the fact that heat is transferred to the nearby field parts such as plates and yokes in the voice coil section, making it difficult for the temperature to rise.Also, tinsel wire has a thicker wire diameter than the voice coil lead, so it has a higher current capacity. is large,
This is because while the heat generation is small, the voice coil lead has poor heat dissipation and the temperature rise is higher than other parts.

The present invention was proposed in view of the above points, and an object of the present invention is to provide a method of wiring a voice coil lead for a speaker that does not burn the diaphragm even if the voice coil lead generates heat.

(Means for Solving the Problem) In the present invention, the voice coil lead of the voice coil is drawn out without contacting the front or rear surface of the diaphragm, and the tip thereof is connected to the tinsel wire, thereby achieving the above object. are doing.

(Function) The voice coil lead 4a is floated relative to the diaphragm 1, so that even if the voice coil lead 4a generates heat, the diaphragm 1 will not burn.
This is to ensure that there is no possibility of a fire occurring.

(Example) Hereinafter, the present invention will be explained along with the drawings.

FIG. 1 shows a first embodiment of the present invention, and 1 in the figure shows
For example, a substantially conical diaphragm, 2 is a tinsel wire with one end protruding to the front surface of the imaging plate through a hole 1a formed at a proper position of the imaging plate 1, and the other end of this tinsel wire 2 is used for audio signal input. is connected to the terminal (not shown) for the Also,
3 is an eyelet provided in the hole 1a, 4 is a substantially cylindrical voice coil provided in the center of the diaphragm 1, and 4a is a voice coil lead thereof. In this embodiment, the voice coil lead 4a is connected to the bobbin 4a. I is pulled out from a position slightly forward of the joint part between the
: state, that is, in a non-contact state, it is pulled out toward the radial outer periphery of the imaging plate 1 and is connected to one end of the tinsel wire 2 protruding from the front surface of the diaphragm at d5.

Therefore, even if the voice coil lead 4a generates heat due to the large audio current flowing through the tinsel wire 2, the voice coil lead 4aLt and the diaphragm 1 are floating relative to the ffi moving plate 1, so the diaphragm 1 will not be scorched, and furthermore, the diaphragm 1 will not be ignited. Can prevent danger. In addition, the voice coil lead 48 part generates heat.
Even if it melts, the diaphragm 1 will not be damaged.

Therefore, if you look at it from a different perspective, by configuring as described above, it is also possible to use the diaphragm 1 made of a thermally weak material. Further, since the permissible current is clearly determined depending on the thickness of the voice coil lead 4a, the destructive input can be set intentionally, and the input standard can be set more accurately. Furthermore, diaphragm 1
Even if it is conductive and contains carbon, short circuit between the diaphragm 1 and the voice coil lead 4a can be prevented, and an insulating effect can be obtained.

FIG. 2 shows a second embodiment of the present invention. In this embodiment, a relay metal fitting is a part of the tinsel wire 2 connected to the imaging plate 1 and protrudes forward on the front side of the diaphragm 1. 5
The voice coil lead 4a is connected to the front end of the relay fitting 5, and the voice coil lead 4a is connected to the diaphragm 1.
It is characterized by the fact that it does not come into contact with the Since the operation is the same as that of the previous embodiment, a description thereof will be omitted.

FIG. 3 shows a third embodiment of the invention. In this embodiment, the tinsel wire 2 is pulled out to the front surface of the imaging plate through the hole 1a formed in the diaphragm 1, and one end of the tinsel wire 2 is pulled out along the front surface of the diaphragm toward the voice coil 4 side by a desired distance, and the The tip of the voice coil lead 4a is connected to the diaphragm 1 in a non-contact manner.

FIG. 4 shows a fourth embodiment of the present invention, which is an advanced version of the third embodiment. That is, a pair of holes 1a and 1b are formed in the diaphragm 1 in the radial direction, and one end of the tinsel wire 2 is inserted through one hole 1a that is away from the center of the diaphragm 1 and pulled out to the front side of the diaphragm. Further, one end of the tinsel wire 2 is inserted into the other hole 1b formed on the voice coil 4 side to the rear side of the diaphragm 1, and the tinsel wire 2 is wired and fixed so as to thread around the diaphragm 1. Then, the voice coil lead 4a is connected to the tinsel wire 2 located on the front side of the diaphragm 1 at its tip in a suspended state.

FIG. 5 shows a fifth embodiment of the present invention. In this embodiment, the voice coil lead 4a is pulled out from the back side of the imaging plate to the tinsel wire 2 without contacting the diaphragm 1.
It is characterized by being connected to the tinsel wire 2.

FIG. 6 shows a sixth embodiment of the invention. In this example, the voice coil lead 4a is drawn out to the front of the diaphragm 1 as in the first embodiment shown in FIG. 6 to prevent the voice coil lead 4a from coming into direct contact with the imaging plate 1. The tip of the voice coil lead 4a is connected to the tin cell wire 2 protruding from the front surface of the imaging plate. Although this embodiment shows an example in which the voice coil lead 4a and tube 6 are provided on the front side of the diaphragm, it goes without saying that they may be provided on the rear side of the diaphragm.

(Effects of the Invention) As described above, according to the present invention, the voice coil lead of the voice coil is pulled out without contacting the front or rear surface of the diaphragm, and its tip is connected to the tinsel wire. Since the voice coil lead does not come into contact with the diaphragm, even if a large input is applied, there is no harm caused by the heat generated by the voice coil lead to the diaphragm.

[Brief explanation of the drawing]

1 to 6 are explanatory diagrams showing the connection state between the voice coil lead and the tinsel wire in the first to sixth embodiments of the present invention, and FIG. 7 is a conventional example. 1...Moving plate, 2...Tinsel wire, 4...
...Voice coil, 4a...Voice coil lead. Figure 4] a Figure 5

Claims (1)

[Claims] A method for wiring a voice coil lead for a speaker in an electrodynamic speaker, characterized in that the voice coil lead of the voice coil is pulled out without coming into contact with the front or rear surface of the diaphragm, and its tip is connected to a TEINSEL wire. .