JPH0423394A - Case for electronic equipment - Google Patents

Abstract

PURPOSE:To dispense with works, such as the arrangement of a shielding wall, perforation in this shielding wall and the like, by a method wherein a cylindrical extrusion material constituted integrally with the shielding wall, which divides the space in the interior of a cylindrical case part and whose parts are bent and formed, is combined in such a way that the bent and formed parts oppose to the direction opposite to each other and connecting hoes, through which the divided spaces are connected to each other, are formed. CONSTITUTION:An extrusion material 1 is formed by an extrusion molding work using a material, such as an Al material or the like, and a cylindrical case part 1a is constituted integrally with a shielding wall 1b dividing a space in the case part 1a. The wall 1b is formed in the center of the case part 1a so as to divide accurately the space in the case part 1a, for example, into two equal parts and both end parts 1c to come into contact with the case part 1a are bent and formed in the direction oppositive to each other. Case body parts 11 and 12 obtainable by cutting the material 1 in a necessary length are combined with each other in such a way that the bent directions of both end parts 1c, which oppose to each other, of the wall part 1b and different from each other. Through holes are respectively formed in parts A, which correspond to both end parts 1c, of a double-side through hole substrate 13 pinched by the parts 11 and 12 and electric circuits, which are respectively provided in divided spaces B and C, are connected to each other via the through holes.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a case for electronic equipment using an extruded material such as aluminum.

[Prior Art] Cases made of extruded materials such as aluminum have been widely used as cases for general electronic devices. In such an electronic device case, if it is desired to electromagnetically separate and isolate the space inside the case into two parts, a shield wall is provided. In order to connect the electric circuits on the printed circuit boards in each of the two separated spaces, holes must be drilled through the shield wall and three-dimensional wiring connecting the two circuits must be laid through these holes. I was doing it.

[Problem to be Solved by the Invention] As described above, in order to connect the electric circuit of a printed circuit board located in a space electromagnetically isolated by a shield wall inside an electronic device case, it is necessary to penetrate the shield wall. There was a problem in that a hole had to be drilled, which required time and effort to process and resulted in a high cost.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to connect electrical circuits on a printed circuit board in an electromagnetically isolated space without requiring the installation of shield walls or drilling holes. An object of the present invention is to provide a case for electronic equipment that can be connected.

[Means and effects for solving the problem] That is, the present invention provides a cylindrical extruded material that is integrally formed with a shield wall in which a portion of the shield wall that divides an internal space is formed by bending. The parts face in opposite directions and are used in combination to form a connection hole that connects the divided spaces, and there is no need to install a shield wall or perform processing such as drilling holes in this shield wall. It becomes possible to connect electrical circuits in each of the divided spaces through the connection hole.

[Example〕 An embodiment of the present invention will be described below with reference to the drawings.

Figures 1 and 2 show the structure of the extruded material, which is the main component. This extruded material 1 is made by extrusion molding using, for example, an aluminum material, and as shown in the figure, it has a cylindrical case part 1a and a shield wall that divides the space inside this case part a. The portion 1b is integrated with the portion 1b. This shield wall portion 1b is formed at the center of the case portion 1a so as to accurately divide the space within the case portion 1a into two equal parts, for example, and the both end portions IC in contact with the case portion 1a are opposite to each other as shown in the figure. It is bent in the direction.

Note that four corner portions of the case portion 1a are provided with screw hole forming portions 1d, ld, . . . , respectively.

FIG. 3 shows the structure of an actual electronic device case using cut extruded material 1 shown in FIGS. 1 and 2 above.

In the figure, reference numerals 11 and 12 indicate a housing portion obtained by cutting the extruded material 1 to a required length. A double-sided through-hole board 13 is sandwiched between these housing parts 11.12, and a cover 14.15 is attached so as to sandwich the housing part 11.12 with the double-sided through-hole board 13 sandwiched therebetween from the front and back. In order to fix these cover 15, housing part 11, double-sided through-hole board 13, housing part 11, and cover 14 together, four long screws 16, 16. ...and 4
Book short screws 17, 17. ... are screwed onto the four corners of each side of the cover 15°14.

These long screws 16, 16. ..., short screw 17°17
, . . , double-sided through-hole substrate 13,
Through holes are formed in the four corners of the cover 14.15, and screw hole forming portions ld, ld, . . .
A screw hole is formed by tapping.

Here, the housing portion 11 and the housing portion 12 are combined so that the bending directions of both end ICs of the opposing shield wall portions 1b are different, and the double-sided through-hole substrate 1
A through hole (not shown) is formed in the corresponding portion of 3.

Next, the specific structure of the electronic device case configured as shown in FIG. 3 will be explained with reference to FIGS. 4 and 5.

FIG. 4 shows the assembled electronic device case with the cover 14 removed.

Since the housing portion 11 and the housing portion 12 are combined so that the bending directions of both ends 1c of each opposing shield wall portion 1b are different, the shield wall portion 11 and the housing portion 12 are sandwiched between the housing portions 11 and 12. Both ends 1c of the double-sided through-hole board 13
Only the portion corresponding to , that is, the portion indicated by A in the figure is not sandwiched between the mutual shield wall portions 1b. therefore,
By forming the above-mentioned through holes in this portion and connecting the electric circuits arranged in the divided spaces B and C through the through holes, the shield wall portion 1b
The electrical circuit can be connected without forming a through hole or the like in the circuit.

FIG. 5 shows a cross-sectional structure taken along the line E--E in FIG. 4 above. As shown in the figure, double-sided through-hole board 1
A through hole 18 is drilled in the part indicated by A in 3, and an electric circuit 19 provided on the space B side of the double-sided through hole board 13 and an electric circuit 20 provided on the space C side are connected through the through hole 18. By connecting the housing portion 11.
12, it is possible to electrically connect the rain spaces B and C while maintaining their shields without forming any through holes or the like in either of the shield wall portions 1b.

[Effects of the Invention] As described above, according to the present invention, a cylindrical extruded material that is integrally formed with a shield wall in which a portion of the internal space is divided is bent, The parts face each other in opposite directions and are used in combination to form a connecting hole that connects the divided spaces, without requiring the installation of a shield wall or the drilling of holes in this shield wall. , it is possible to provide an electronic device case in which electrical circuits in each of the divided spaces can be connected through the connection hole.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the structure of an extruded material according to an embodiment of the present invention, Fig. 2 is a front view of Fig. 1, and Fig. 3 is a case using the extruded material of Figs. 1 and 2. FIG. 4 is a perspective view showing the assembled configuration, FIG. 4 is a view showing the through-hole part in the case of FIG. 3, and FIG. 5 is a sectional view showing the connection state of the electric circuit along line E-E in FIG. 4. . DESCRIPTION OF SYMBOLS 1... Extrusion material, 1a... Case part, 1b... Shield wall part, 11.12... Housing part, 13... Double-sided through-hole board 13.14.15... Cover 16.
...Long screw, 17...Short screw, 18...Through hole. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] A cylindrical extruded material is formed by integrally forming a shield wall and a case housing part, which are partially bent and divide the internal space, and the bent parts are combined symmetrically with each other to form the divided internal space. A case for electronic equipment, characterized in that a plurality of cases are connected to each other to form a through hole for connecting the two.