JPH0579970U - Structure of hybrid integrated circuit - Google Patents

Abstract

(57) [Abstract] [Purpose] The circuit board can be stored without arranging it in the case in the opposite direction, and the lead terminals are not attached to unnecessary electrodes so that the lead terminals are not uselessly used. And a hybrid integrated circuit structure. [Structure] Notches 8 are provided asymmetrically on each of opposite side surfaces of a circuit board 11, and projections 9 that fit into the notches 8 are provided on side walls of a case 10, and the notches 8 of the case 10 are provided. The circuit board so that the convex portion 9 fits in the
11 were placed to form a hybrid integrated circuit.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to the structure of a hybrid integrated circuit.

[0002]

[Prior Art]

 FIG. 4 is a transverse cross-sectional view showing the structure of a conventional hybrid integrated circuit. Reference numeral 1 shows a circuit board on which surface mount components 5 are mounted, and a perspective view of the circuit board 1 is shown in FIG. A plurality of electrodes 2 are formed on the side surface of the circuit board 1, and a connecting portion 4 at the tip of a lead terminal 3 is connected to each electrode 2 by solder while sandwiching the electrode 2. In this way, the circuit board 1 to which the lead terminals 3 are attached is housed in a resin case 6 and covered with a sealant 7 such as resin. A perspective view of the case 6 is shown in FIG.

[0003]

[Problems to be solved by the device]

 However, in the structure of the conventional hybrid integrated circuit, the circuit board may be placed in the opposite direction when it is housed in the case. In this case, if the marking of parts is printed on the surface of the case, the assembled hybrid Improvements have been desired, such as the integrated circuit becoming a defective product, and the structure in which lead terminals are attached to unnecessary electrodes, and unnecessary lead terminals are wasted.

Therefore, the present invention can store the circuit board without arranging the circuit board in the reverse direction in the case, and prevent unnecessary use of the lead terminals by preventing the lead terminals from being attached to unnecessary electrodes. It is an object of the present invention to provide a structure of such a hybrid integrated circuit.

[0005]

[Means for Solving the Problems]

 In the present invention, the notches are provided asymmetrically on each of the opposite side surfaces of the circuit board, and the side wall of the case is provided with a protrusion that fits into each of the notches, and the notch of each of the cases is provided with the protrusion. It is characterized in that the circuit board is formed so as to fit in.

[0006]

[Action]

 In the present invention, the circuit board is not arranged in the case in the opposite direction, and since there are no unnecessary electrodes, the lead terminals are not attached unnecessarily.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a perspective view of a circuit board of the present invention, and FIG. 1 (b) is a perspective view of a case of the present invention.

In FIGS. 1A and 1B, a plurality of electrodes 12 are arranged on the circuit board 11 along the opposite side surfaces at substantially equal intervals, but on each of the opposite side surfaces of the circuit board 11. Has a notch 8 formed asymmetrically, so that there is no unnecessary electrode that is not used. Reference numeral 10 is a resin case for housing the circuit board 11. The side wall of the resin case 10 is formed with a projection 9 that fits into each notch 8. The surface mount component 5 is mounted on the circuit board 11 and the lead terminal 3 is mounted on the electrode 12, as shown in the transverse sectional view of FIG. In this way, the circuit board 11 on which the surface mount component 5 is mounted and the lead terminals 3 are attached to the electrodes 12 is arranged in the resin case 10 by fitting the notches 8 into the protrusions 9 of the resin case 10. A hybrid integrated circuit is formed by being covered with a sealing agent 7 such as.

[0009]

[Effect of the device]

 As described above, according to the structure of the hybrid integrated circuit of the present invention, the circuit board can be housed without arranging the circuit board in the opposite direction, and since there are no unnecessary electrodes, the lead terminals are useless. It is economical because it is not used, and it has great practical effects, such as elimination of defects associated with the assembly of hybrid integrated circuits.

[Brief description of drawings]

1 shows an embodiment of the present invention, FIG. 1 (a) is a perspective view of a circuit board according to the present invention, and FIG. 1 (b) is a perspective view of a case according to the present invention.

FIG. 2 is a cross-sectional view of a hybrid integrated circuit showing an embodiment of the present invention.

FIG. 3 shows a conventional example of the present invention, FIG. 2 (a) is a perspective view of a conventional circuit board, and FIG. 2 (b) is a perspective view of a conventional case.

FIG. 4 is a cross-sectional view of a hybrid integrated circuit showing a conventional example of the present invention.

[Explanation of symbols]

 3 Lead terminal 8 Notch 9 Protrusion 10 Case 11 Circuit board 12 Electrode

Claims (1)

[Scope of utility model registration request] 1. A notch is provided asymmetrically on each of the opposite side surfaces of a circuit board, a convex portion that fits into each notch is provided on a side wall of a case, and the notch is provided at each notch of the case. A structure of a hybrid integrated circuit, wherein the circuit board is arranged so as to be fitted therein.