JPH04314301A - Electric component - Google Patents

Abstract

PURPOSE:To enable species and characteristics of chip components to be altered easily even after they are mounted once, by providing the sockets for fitting the chip components thereinto, and by making the chip parts fitted into the sockets removably. CONSTITUTION:An electric component 5 has lead pins and is mounted on a printed board 6 by bonding the lead pins to the through holes of the board 6 through soldering. Four recessed sections 10-40 are provided on the top face section of the electric component 5 and are so constructed that chip resistors 1-4 can be fitted into them removebly. Also, in each of the recessed sections 10-40, contacts are so provided at the positions corresponding to the electrode section of the chip resistor that they are connected by the chip resistor when the chip resistor is inserted into the recessed section. For example, the socket structure, wherein the electrode section of both the ends of the chip resistor are fastened, is satisfiable. Thereby, the chip resistor having an arbitrary resistance value can be fitted into the electric parts removably.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electrical components, and more particularly to electrical components mounted on printed circuit boards.

0002

2. Description of the Related Art Generally, when changing the type or characteristics of an electrical component mounted on a printed circuit board after it has been mounted, it is often necessary to remove the solder and mount the new component.

For example, with the exception of variable resistors, the resistance value of resistors cannot be changed after they are mounted on a printed circuit board. Therefore, in order to change the resistance value of a resistor mounted on a printed circuit board when changing specifications or during experiments before product completion, it must be removed with a removal jig such as a soldering iron, and other resistance values must be changed. This method has the disadvantage that a resistor must be installed, making the work complicated.

0004

[Object of the Invention] The present invention has been made to solve the above-mentioned conventional drawbacks, and its purpose is to provide an electrical component whose type and characteristics can be easily changed even after mounting. .

[0005]

SUMMARY OF THE INVENTION An electrical component according to the present invention is an electrical component mounted on a printed circuit board, and is characterized in that it has a socket for mounting chip components, and the chip component can be freely attached to and removed from the socket.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is an external view showing the structure of an electrical component according to an embodiment of the present invention. In the figure, an electrical component 5 according to an embodiment of the present invention has lead pins (not shown) and is mounted by soldering into a through hole of a printed circuit board 6 or the like. There are four recesses 1 on the upper surface of this electrical component 5.
0 to 40 are provided, and the structure is such that chip resistors 1 to 4 can be attached to and detached from these recesses.

Further, each of the recesses 10 to 40 is provided with a contact at a position corresponding to the electrode portion of the chip resistor.
The resistor is configured to be electrically connected between the contacts by inserting the chip resistor. For example, a socket structure may be used to fix the electrode portions at both ends of the chip resistor. This allows a chip resistor of any resistance value to be attached or detached.

By the way, various internal wiring examples can be considered for the electrical component of this embodiment depending on its use. For example, FIG. 2(a) shows an example of internal wiring when configuring a composite resistor (resistance network), and parts equivalent to those in FIG. 1 are designated by the same symbols. That is, by providing five lead pins on the electrical component 5 and inserting the chip resistor into the recess (see FIG. 1), a parallel composite resistor can be constructed.

In a generally known composite resistor, each internal resistance element has the same resistance value, but in the composite resistor using the electrical components of this embodiment, each internal resistance element has a different resistance value. You can also.

Furthermore, as shown in FIG. 2(b), eight lead pins can be provided on the electric component 5 to construct an independent composite resistor. In this case as well, each resistance value can be set to an arbitrary value, which is convenient for pull-up, pull-down, and termination.

Furthermore, not only a resistor but also a chip capacitor can be inserted. A CR circuit can be constructed by combining a resistor and a capacitor, and any time constant circuit can be constructed by changing the resistance value or capacitance value.

Although the electrical component shown in FIG. 1 is provided with four recesses, the number is not limited. If there is only one recessed portion, the same function can be obtained with a smaller mounting space than a known variable resistor.

[0014]

[Effects of the Invention] As explained above, by providing a socket for mounting chip components, the present invention allows any chip component to be attached and detached freely, and the type and characteristics of the component can be changed without using a jig such as a soldering iron. It has the effect of being easy to change and shortening the time required for various operations and experiments.

[Brief explanation of drawings]

FIG. 1 is an external view showing the configuration of an electrical component according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing an example of internal wiring of the electrical component in FIG. 1;

[Explanation of symbols]

1, 2, 3, 4 Chip resistor 5 Electrical parts 6 Printed circuit board 10, 20, 30, 40 recess

Claims (2)

[Claims] 1. An electrical component mounted on a printed circuit board, characterized in that it has a socket for mounting chip components, and the chip component can be freely attached to and removed from the socket. 2. The electrical component according to claim 1, wherein the chip component is a resistor.