JPH0758652B2 - Coil composite parts - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil composite component widely used for signal processing of electronic devices such as a television receiver and a video tape recorder.

2. Description of the Related Art Conventionally, a coil composite component used for signal processing generally has a structure as shown in FIGS. 5 and 6. In this coil composite component 9, a winding 8 is wound around a winding groove 4 of a coil bobbin 10 formed by a plurality of collars 2 and a winding groove 4 formed between the collars 2, and a side surface of the collar 2 is formed. Is formed by insert-molding into the collar 2 a winding connection terminal 11a for connecting the terminal of each winding 8 and a connection terminal 11 having a board connection terminal 11b connected to the wiring pattern of the printed board 12 on the bottom surface. ing. A wiring pattern (not shown) is formed on the back surface of the printed circuit board 12 with a copper foil, and the chip type electronic component 6 and an external terminal 13 for taking out an electric signal to the outside are connected to this wiring pattern. Reference numeral 14 is an insertion hole. The board connection terminal 11b is inserted into the insertion hole 14 to
It is electrically and mechanically connected to the second wiring pattern by soldering.

With the above structure, the coil 8 and the chip type electronic component 6 are mounted on the printed circuit board 12 to form the coil composite component 9.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the coil composite component having such a conventional configuration, since there are many places for connecting the respective components constituting the coil composite component, the number of connecting steps is increased and the manufacturing cost is increased. Further, since there are many constituent parts, there are problems such as an increase in raw material cost, which has been an obstacle to cost reduction of the coil composite part 9.

When attempting to downsize the coil composite component 9,
Although it is essential to downsize the printed circuit board 12 connecting the respective components, there is a limit to reducing the diameter of the insertion hole 14 of the printed circuit board 12 and thinning the printed circuit board 12. Further, there is a problem that the cost of the printed circuit board 12 rises due to the size reduction.

The present invention solves the above problems, and an object of the present invention is to provide a coil composite component that is smaller and less expensive.

Means for Solving the Problems To achieve the above object, the present invention provides a coil bobbin including a plurality of collars and a winding groove formed between the collars, and a winding wound in the winding groove. And a pair of connection terminals disposed on the collar and having a signal terminal, a winding connection terminal, and a chip-type electronic component connection terminal, the chip-type electronic component connection terminal of the pair of connection terminals being one side surface of the collar. And a common terminal is provided in the axial direction of the coil bobbin between the facing chip type electronic component connecting terminals, and the chip type electronic component connecting terminal and the chip type are connected to the common terminal. The configuration is such that electronic components are connected.

With the above-described configuration, the present invention directly connects the chip-type electronic component to the chip-type electronic component connecting terminal and the common terminal, thus eliminating the need for a printed circuit board, simplifying the structure and reducing the number of members used, and reducing the cost. The cost can be reduced.

Embodiments Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

As shown in FIGS. 1 to 3, the coil composite component 1 is configured as follows. Reference numeral 2 denotes a plurality of brims, which are formed in a quadrangle in this embodiment. Reference numeral 4 denotes a winding groove formed between the collars 2, and the plurality of collars 2 and the plurality of winding grooves 4 form a coil bobbin 3. Reference numeral 8 is a winding wound around the winding groove 4. Reference numerals 5 and 5 are a pair of U-shaped connection terminals planted in the collar 2, and a chip-type electronic component connection terminal at one end of the connection terminal 5.
5a is a pair of chip type electronic component connection terminals 5a on one side surface 2a of the collar 2.
It is provided so as to face and face. Further, the winding connection terminal 5b and the signal terminal 5c at the other end of the connection terminal 5 are the collar 2
It is provided so as to be exposed on the other side surface 2c. 7 is a common terminal arranged in the axial direction of the coil bobbin 3 with a suitable distance between the chip-type electronic component connection terminals 5a, 5a,
Electrodes or terminals of the chip type electronic component 6 are connected to the common terminal 7 and the chip type electronic component connecting terminals 5a, 5a by a method such as soldering. An external signal terminal plate 7a is connected to the signal terminal 5c by soldering or mechanical coupling, and is for taking out the output signal of the coil composite component 1 to the outside.

In this embodiment, the connection terminal 5 is described as being attached to the collar 2 by insert molding. However, the attachment method is not limited to the implantation and may be attached by a known method. It's good.

Moreover, when the common terminal 7 is used as a ground terminal, the ground impedance can be reduced and the stray capacitance,
The inductance component and the ground potential difference are reduced, so that crosstalk distortion and variations in characteristics can be reduced.

FIG. 4 shows another embodiment, in which the connection terminal 5 provided on the collar 2 is one and the chip-type electronic component connection terminal 5a is provided.
, A common terminal 7 is arranged in the axial direction of the coil bobbin 3, and the chip type electronic component 6 is connected to both terminals. Further, the external signal terminal board 7a of the first embodiment is integrally extended to the signal terminal 5a of the connection terminal 5.

As described above, according to the coil composite component 1 of the embodiment of the present invention, the chip-type electronic component connection terminal 5a, which is provided so as to be exposed on one side surface of the flange 2 of the connection terminal 5 implanted in the flange 2, 5a
Since the chip type electronic component 6 is connected between the common terminal 7 and the common terminal 7 arranged in the axial direction of the coil bobbin 3 therebetween, the number of connection points of the component parts is reduced and the connection man-hour is reduced. The number of component parts is also reduced, the cost is reduced and the reliability is improved, and at the same time, the coil composite component can be downsized.

EFFECTS OF THE INVENTION As is clear from the above embodiments, according to the present invention, the chip-type electronic component connection terminal is arranged on one side surface of the collar, and the common terminal is arranged on the same surface in the axial direction of the coil bobbin. Since the chip-type electronic component is connected between the chip-type electronic component connecting terminal and the common terminal, a printed circuit board is not required, so that material cost and man-hours can be reduced, product price can be reduced, and downsizing can be achieved. It is a thing.

In addition, when the common terminal is used as the ground terminal, the ground impedance can be reduced as compared with the ground pattern of the conventional printed circuit board, so in the electrical characteristics, stray capacitance, inductance component, ground potential difference, etc. are reduced, Crosstalk distortion and variation in characteristics are reduced, and a coil composite component excellent in electrical characteristics can be obtained.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a coil composite component of one embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a perspective view of a common terminal and an external signal terminal plate, and FIG. 4 is another embodiment. FIG. 5 is an external perspective view showing an example, FIG. 5 is an exploded perspective view showing a conventional coil composite component,
FIG. 6 is a side view of the same. 1 ... Coil composite component, 2 ... Tsuba, 3 ... Coil bobbin, 4 ... Winding groove, 5 ... Connection terminal, 5a ... Chip type electronic component connection terminal, 5b ... Winding connection terminal, 5c ... … Signal terminals, 6 …… Chip type electronic parts, 7 …… Common terminals, 8 ……
Winding.

Claims (2)

[Claims] 1. A coil bobbin comprising a plurality of collars and a winding groove formed between the collars, a winding wound in the winding groove, and a signal terminal and a winding disposed in the collar. A pair of connection terminals having a connection terminal and a chip-type electronic component connection terminal, and the chip-type electronic component connection terminal of the pair of connection terminals is provided to face one side surface of the brim and is provided so as to face the side surface. A coil composite component in which a common terminal is arranged in the axial direction of the coil bobbin between chip type electronic component connecting terminals, and a chip type electronic component is connected to the chip type electronic component connecting terminal and the common terminal. 2. The coil composite according to claim 1, wherein a chip-type electronic component connecting terminal of one connecting terminal and a common terminal are disposed on one side surface of the flange, and the chip-type electronic component is connected to both terminals. parts.