JPH039314Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a high-frequency coil used in television receivers, video equipment, etc.

BACKGROUND ART Conventionally, this type of high-frequency coil has a terminal plate 2 in which a terminal 1 is embedded, as shown in FIGS. 3a and 3b.
It has a coil bobbin 3 formed integrally with the terminal plate 2 on the top surface, a coil 4 is wound around the outer periphery of the coil bobbin 3, and a core 5 is inserted into the coil bobbin 3 to adjust the inductance of the coil 4. has been done. A capacitor 7 is housed in a recess 6 provided at the bottom of the terminal board 2, and a lead wire 9 of the capacitor 7 is pulled out through a groove 8 provided at the upper end of the terminal board 2, and is connected to the terminal 1 along a wiring groove 10. It is connected. In addition, 11 is the capacitor 7
1 is a bobbin play part provided for passing the lead wire 9 through the groove 8 provided at the upper end of the terminal plate 2, and 12 is a lead wire winding part of the capacitor body.

In addition, Figures 4a and 4b show another example of mounting a capacitor, in which the capacitor 7 is stored in the capacitor storage recess 6 provided on the bottom of the terminal board 2, and fixed with resin or the like so that it does not float up. ing. The lead wire 9 of the capacitor 7 is directly connected to the terminal 1 from the bottom surface of the terminal plate 2.

Problems to be solved by the invention However, when installing the capacitor 7,
It is difficult to pass the lead wire 9 through the groove 8 provided at the upper end of the terminal plate 2, and it requires a lot of man-hours.
A loose part 11 of the bobbin is required for passing the lead wire 9 of the capacitor 7, and this has the disadvantage that the high frequency coil cannot be made smaller.

In other capacitor mounting examples, when mounting the capacitor 7, the capacitor 7 is inserted into the capacitor housing recess 6, and the capacitor 7 is fixed with resin or the like so that it does not float up, or the capacitor is held down with a finger or the like. It is necessary to wire the lead wires 9 of No. 7 to the terminals 1, which requires a lot of man-hours. In addition, since the concave portion 6 for storing the capacitor is open in one direction of the terminal, there is a possibility that solder or flux may adhere to the electrode portion of the capacitor 7 during soldering, or heat from the solder may be applied directly to the body of the capacitor 7, causing deterioration of its characteristics. It was hot.

Means for Solving the Problems The technical means of the present invention for solving the above problems is to provide a concave portion for storing a capacitor provided on one side of the terminal board, from the end face of the concave portion toward the back of the concave portion.
The two notches are wide on the inside of the recess and narrow on the outside of the recess to have a tapered shape, and a recess is provided on the upper surface of the capacitor storage recess opposite to the notch. The capacitor is stored in the capacitor storage recess so that a part of the capacitor body lead wire winding part is attached to the tapered part of the recess and the two cutouts, and the capacitor lead wire is passed through the cutout. It has a structure in which it is drawn out from the bottom surface of the terminal board and connected to a terminal implanted in the bottom surface of the terminal board.

Effect The effect of this technical means is as follows.

That is, two notches are provided in a concave portion for accommodating a capacitor provided on one side of the terminal board from the end surface of the concave portion toward the back of the concave portion, and
Two notches are widened on the inside of the recess and narrowed on the outside of the recess to have a tapered shape, and a recess is provided on the upper surface of the capacitor storage recess opposite to the notch, and this recess and the two above-mentioned notches By fitting a part of the capacitor body lead wire winding part to the tapered part of the cylindrical capacitor, the recess for storing the capacitor can be made smaller in the radial direction of the cylindrical capacitor. The bobbin play part at the top of the terminal board is unnecessary, allowing for a large reduction in size. Furthermore, when installing a capacitor, pass the capacitor lead wire through the notch, simultaneously insert the capacitor into the capacitor storage recess, and pull the capacitor to the protrusion on the bottom of the terminal board that is sandwiched between the two notches. Multiply
The capacitor lead wire can be wired to the terminal, and there is no need to hold down the capacitor body when wiring the capacitor lead wire to the terminal, which can greatly reduce the number of work steps.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

Figures 1a, b, and c are front, side, and bottom views of a high-frequency coil according to an embodiment of the present invention, and Figure 2 is a perspective view of the capacitor in Figure 1, the coil bobbin, and the terminal plate before the coil is installed. The figure shows. Terminal 1
A coil bobbin 15 with no play part for capacitor wiring is formed integrally with the terminal plate 14 on the upper surface of the terminal plate 14 on which the terminal plate 3 is implanted, and a coil 16 is wound around the outer periphery of this coil bobbin 15. A core 17 is inserted into the coil bobbin 15 to adjust the inductance of the coil 16. A concave portion 19 for accommodating a capacitor is formed on one side of the terminal plate 14 and is made smaller to match the diameter of the main body of the capacitor 18. A recess 19 for accommodating a capacitor is formed on the bottom surface of the concave portion 19 for accommodating a capacitor. Two notches 20 are provided from the end face of the capacitor storage recess 19 toward the back of the recess 19. Further, the two notches 20 are tapered so as to be wide on the inside of the capacitor storage recess 19 and narrow on the outside of the recess 19.

A recess 21 is provided on the upper surface of the capacitor accommodating recess 19 facing the two notches 20 .

Then, the lead wire 22 of the capacitor 18 is inserted into the notch 20, and the capacitor 18
The capacitor body winding portion 23 is connected to the notch portion 2.
0 taper portion and the capacitor storage recess 19
The capacitor 18 is inserted into the capacitor storage recess 19 so as to be inserted into the recess 21 provided on the top surface.
is attached to the lead wire 22 of the capacitor 18,
It is wound around the terminal 13 implanted on the lower surface of the terminal plate 14 through the two notches 20 . Further, the shape of the recess 21 provided on the upper surface of the capacitor housing recess 19 is not limited to a trapezoid, but may be semicircular or square.

Effects of the Invention As described above, the present invention eliminates the need for a bobbin play area for capacitor wiring, and can reduce the size of the recess for storing the capacitor, thereby making it possible to downsize the high-frequency coil. In addition, the capacitor lead wire can be passed through the notch at the same time as the capacitor is inserted into the capacitor storage recess, and there is no need to hold the capacitor when wrapping the capacitor lead wire around the terminal, which saves a lot of work time. can be reduced and the cost can be reduced.

Moreover, since the bottom of the capacitor housing recess is not open, the solder heat is not directly applied to the capacitor body during soldering, and the solder and flux are not attached to the capacitor electrodes, so it is difficult to solder the capacitor. There are effects such as preventing characteristic deterioration and obtaining a highly reliable high frequency coil.

[Brief explanation of the drawing]

Figures 1a, b, and c are front, side, and bottom views showing one embodiment of the high-frequency coil of the present invention; Figure 2 is a perspective view of the coil bobbin and terminal plate in Figure 1; Figures 3a, b is a front view and bottom view of a conventional high-frequency coil,
FIGS. 4a and 4b are a front view and a bottom view of a conventional high-frequency coil showing another method of attaching a capacitor. 13...Terminal, 14...Terminal board, 15...Coil bobbin, 16...Coil, 17...Core, 18
... Capacitor, 19 ... Recess for capacitor storage, 20 ... Notch, 21 ... Recess, 22 ...
Capacitor lead wire, 23...Capacitor body lead winding part.

Claims (1)

[Scope of utility model registration request] A terminal plate is provided at the bottom of the coil bobbin on which the coil is wound, and two notches are provided in a recess for storing a capacitor provided on one side of the terminal plate from the end face of the recess toward the back of the recess, and the two notches are widened on the inside of the recess and narrowed on the outside of the recess to have a taper, and a recess is provided on the upper surface of the capacitor storage recess opposite to the notch, and the recess and the two Storing the capacitor in the capacitor storage recess so that a part of the capacitor body lead wire winding part is attached to the tapered part of the notch, and drawing out the capacitor lead wire to the lower surface of the terminal plate through the notch, A high-frequency coil connected to a terminal planted on the lower surface of the terminal plate.