JP2001111260A - Mounting structure for electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure for electronic equipment which solves the troublesome work required by the conventional mounting structure for turning-over and twisting the head sections of mounting legs 24 extruded from through-holes of a printed board 25 after the legs are passed through the through-holes 26 required and at the mounting, after passing a mounting member 21 through the holes 26 of the printed board 25, the member is inverted and working proceeds to twisting of a head port 246, making the working troublesome and resulting in poor productivity. SOLUTION: In a mounting structure for electronic equipment, each mounting leg 4 of a mounting member 1 has a neck section 4a connected with three sidewalls and mounting pieces 4c connected to the side sections of the neck section 4a and arranged in parallel with the section 4a. After the mounting pieces 4c are passed through a through-hole 8 of a printed board 7, the upper and lower projecting sections 4e and 4f of the pieces 4c respectively protruded upward and downward from the hole 8 and locked to the hole 8 by inclining the pieces 4c with respect to the printed board 7. Therefore, the mounting member 1 can be mounted, without turning over the printed board 7 and electronic equipment can be mounted with high workability and at high productivity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for electronic equipment such as a television tuner.

[0002]

2. Description of the Related Art A conventional electronic device mounting structure and mounting method will be described with reference to FIGS. 3 and 4. A box-shaped mounting member 21 made of a metal plate such as a frame or a shield case is described.
Is formed by punching and bending a metal plate, and includes an upper wall 22, a side wall 23 bent from four sides of the upper wall 22, and a plurality of mounting legs 24 projecting downward from the side wall 23. Have.

The mounting leg 24 has a T-shape as a whole, and is connected to the side wall 23 and protrudes downward.
4a, and has a wide head 24b for preventing twisting. Then, in a box-shaped portion formed by the upper wall 22 and the side wall 23, for example, an insulating substrate (not shown) on which an electronic circuit portion is formed is attached and housed.

[0004] A plurality of rectangular through holes 26 are formed in the printed board 25 on which the conductive patterns 27 are formed. On the printed circuit board 25, the mounting member 2 is mounted with the head 24b of the mounting leg 24 inserted through the through hole 26.
1 is placed. Then, the head 2 pulled out from the through hole 26
4b is twisted about 90 degrees, and the head 24b is attached to the printed circuit board 25.
Of the printed circuit board 2
5, and as a result, the electronic device is mounted on the printed circuit board 25. Thereafter, the head 24b of the mounting leg 24 of the mounting member 21 is soldered to the conductive pattern 27 so that the mounting member 21 is firmly mounted and the mounting member 21 is grounded.

[0005] Then, a mounting member 21 constituting an electronic apparatus is provided.
As shown in FIG. 3, first, the mounting leg 24 is inserted into the through hole 26 with the mounting member 21 positioned above the printed circuit board 25 as shown in FIG. Next, as shown in FIG. 4, the mounting member 21 is mounted on the printed circuit board 25 by turning it upside down and twisting each head 24b in this turned upside down state. Then, as shown in FIG. 3, the printed circuit board 25 is returned so as to be located below the mounting member 21, and is conveyed to the solder tank in this state.
The mounting leg 24 and the conductive pattern 27 are soldered.

[0006]

A conventional mounting structure for an electronic device is such that a mounting member 21 is inserted into a through hole 26 of a printed circuit board 25.
The head 24b of the mounting leg 24, which is inserted through the mounting leg 24 and is pulled out of the through hole 26, is twisted for mounting.
6, the work is turned upside down and the head 24b is twisted, which is troublesome and has a problem of low productivity. Also, at the time of soldering, it is necessary to return the printed circuit board 21 and the like to a normal state after twisting the head portion 24b.
There is a problem that workability deteriorates. Therefore, the present invention provides an electronic device mounting structure in which the mounting operation of the electronic device is easy and the productivity is good.

[0007]

As a first means for solving the above-mentioned problems, a box-shaped mounting member made of a metal plate and having mounting legs protruding downward from a side wall, and the mounting member are mounted. A printed circuit board having a through hole for mounting, wherein the mounting leg has a neck connected to the side wall, and a mounting piece connected to a side of the neck and arranged side by side with the neck. A piece is inserted into the through hole of the printed circuit board, and upper and lower protrusions of the mounting piece project from above and below the through hole, respectively, and the mounting piece is inclined with respect to the printed circuit board to form the mounting piece. The upper and lower protruding portions are locked in the through holes.

As a second solution, the mounting piece is inclined by tilting the upper protruding portion in the thickness direction. As a third solution, a pair of the mounting pieces are provided on both sides of the neck.
As a fourth solution, each of the mounting pieces has a different inclination direction.

As a fifth solution, a notch is provided at the lower end of the neck, and the lower edge of the mounting piece is farther from the printed board than the lower edge of the neck. . As a sixth solution, a rib is provided on the mounting piece over the upper and lower protrusions. As a seventh solution, a locking portion for locking to the upper surface of the printed circuit board is provided on the neck portion.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A mounting structure of an electronic device according to the present invention and a mounting method thereof will be described with reference to FIGS.
FIG. 1 is an exploded perspective view showing an electronic device mounting structure of the present invention.
FIG. 2 is an explanatory view showing a mounting method according to the mounting structure of the electronic device of the present invention.

Next, a mounting structure of an electronic device according to the present invention will be described with reference to FIGS. 1 and 2. A box-shaped mounting member 1 made of a shield case, a frame, or the like is stamped and bent from a metal plate. And an upper wall 2 and a side wall 3 which is bent from four sides of the upper wall 2 and has an open lower portion.
And at least a plurality of mounting legs 4 protruding downward from side walls 3 facing each other.

The mounting leg 4 has a neck 4a which is connected to the side wall 3 and protrudes downward, and a pair of mounting pieces 4c connected to both sides of the neck 4a by connecting portions 4b and arranged side by side with the neck 4a.
A notch 4d provided at the lower end of the neck 4a;
A rib 4 provided over the upper projecting portion 4e and the lower projecting portion 4f of the mounting piece 4c and formed by projecting.
g, and a locking portion 4h provided on the neck 4a and formed by cutting and raising. The lower edge 4j of the neck 4a is located above the lower edge 4k of the mounting piece 4c.

Also, the mounting piece 4c of the mounting leg 4 may be any one piece, and the notch 4d and the rib 4g may be formed as required. Then, in a box-shaped portion formed by the upper wall 2 and the side wall 3, for example, an insulating substrate (not shown) on which an electronic circuit portion is formed is attached and housed.

The printed circuit board 7 on which the conductive pattern 6 is formed has a plurality of rectangular through holes 8 formed therein. Also, on this printed circuit board 7, the mounting piece 4c of the mounting leg 4 is provided.
Is inserted into the through-hole 8 and the mounting member 1 is placed in a state where the locking portion 4h is locked on the upper surface of the printed circuit board 7.
Then, the mounting piece 4c is inclined with respect to the printed circuit board 7, and the upper protrusions 4 protruding from above and below the through hole 8, respectively.
e and the lower projecting portion 4f are locked in the through holes 8 so that the mounting member 1
Is attached to the printed circuit board 7, and as a result, the electronic device is attached to the printed circuit board 7.

The mounting piece 4c is inclined such that when the upper projecting portion 4e is pressed in the thickness direction, that is, in the direction of the arrow P1 in FIG. 2, the connecting portion 4b is twisted and the mounting piece 4c is inclined. Become. The inclination direction of the attachment piece 4c may be such that the pair of attachment pieces 4c are inclined in the same direction or in mutually different directions. Good and reliable locking condition. After the mounting member 1 is mounted on the printed circuit board 7, the mounting piece 4c is soldered to the conductive pattern 6 of the printed circuit board 7 so that the mounting member 1 is firmly mounted and the mounting member 1 is grounded. It has become.

The mounting method of the mounting member 1 constituting the electronic device on the printed circuit board 7 is as follows: first, as shown in FIG. 1, the mounting member 1 is positioned above the printed circuit board 7; As shown in FIG. 2A, the mounting piece 4c is inserted into the through hole 8 of the printed circuit board 7, the locking portion 4h is locked on the upper surface of the printed circuit board 7, and the upper and lower projecting portions 4 are formed.
e, 4f are made to protrude from the through hole 8.

Next, as shown in FIG. 2B, the upper protruding portion 4e is pressed in the direction of arrow P1 by a jig (not shown) while the printed circuit board 7 is positioned downward as described above. By twisting the part 4b to incline the mounting piece 4c,
The lower projections 4e, 4f are locked in the through holes 8. And
Further, when the upper protruding portion 4e is pressed in the direction of arrow P1, as shown in FIG. 2C, the mounting piece 4c is bent together with the rib 4g, and the upper and lower protruding portions 4e, 4f are engaged with the through holes 8. Is further strengthened, the printed circuit board 7 of the mounting member 1 is
Attachment to is completed. Further, instead of pressing in the direction of arrow P1, pressing in the direction of arrow P2 in the opposite direction may be used, and further, combination in the directions of arrows P1 and P2 may be used. Is performed simultaneously for each upper protruding portion 4e by an automatic assembling machine.

The mounting member 1 can be mounted on the printed circuit board 7 in the state shown in FIG. 2B. However, in the state shown in FIG. 2C, the mounting can be more reliably performed. Also, rib 4
By the presence of g, the inclination of the lower protruding portion 4f of the mounting piece 4c can be made more reliable, and the notch 4d is provided.
By locating the lower edge 4j of the neck 4a closer to the printed circuit board 7 than the lower edge 4k of the mounting piece 4c, the inclination of the lower protruding portion 4f of the mounting piece 4c can be further ensured. After the mounting member 1 is mounted on the printed circuit board 7 as described above, the printed circuit board 7 is conveyed to a solder bath with the printed circuit board 7 positioned downward as in the case of mounting the mounting member 1, and the mounting legs 4 and the conductive legs 4 are electrically connected. The pattern 6 is soldered.

[0019]

According to the electronic device mounting structure of the present invention,
The mounting leg 4 has a neck 4a connected to three side walls, and a mounting piece 4c connected to the side of the neck 4a and arranged side by side with the neck 4a. The upper and lower protruding portions 4e and 4f of the mounting piece 4c protrude from the upper and lower sides of the through hole 8, respectively, and the mounting piece 4c is inclined with respect to the printed circuit board 7. 4f is locked in the through-hole 8, so that the mounting member 1 can be mounted without turning over the printed circuit board 7, so that a mounting structure of the electronic device with good workability and good productivity can be provided.

After the mounting member 1 is mounted on the printed circuit board 7, the printed circuit board 7 is conveyed to the solder bath with the printed circuit board 7 positioned downward as in the case of mounting the mounting member 1, and the mounting legs are mounted. 4 and the conductive pattern 6 can be soldered to provide an electronic device mounting structure with good workability.

Further, since the mounting piece 4c is inclined by tilting the upper protruding portion 4e in the thickness direction, the mounting member is not mounted by turning the printed circuit board upside down as in the prior art. It is possible to provide an electronic device mounting structure that is favorable and has high productivity.

Further, since a pair of mounting pieces 4c are provided on both sides of the neck 4a, the locking of the mounting pieces 4c to the through holes 8 can be increased, and the locking can be ensured. Further, since the inclination directions of the pair of mounting pieces 4c are made different, locking to the through holes 8 can be performed in different directions, and the locking state of the mounting pieces 4c to the through holes 8 is further improved and more reliable.

A notch 4d is formed at the lower end of the neck 4a.
And the lower edge 4 of the neck portion 4a with respect to the printed circuit board 7.
Since the lower end edge 4k of the mounting piece 4c is farther than j, the inclination of the lower protruding portion 4f of the mounting piece 4c can be made more reliable, and the state of engagement of the mounting piece 4c with the through hole 8 is further improved and more reliable.

Further, since the mounting piece 4c is provided with the rib 4g over the upper and lower projections 4e and 4f, the rib 4g is provided.
, The inclination of the lower protruding portion 4f of the mounting piece 4c can be made more reliable, and the state of engagement of the mounting piece 4c with the through hole 8 is further improved and more reliable. The neck 4a is provided with a locking portion 4h for locking to the upper surface of the printed circuit board 7, so that the amount of protrusion of the upper or lower protrusions 4e, 4f from the through hole 8 by the locking portion 4h. Can be easily changed, and a flexible electronic device mounting structure can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an electronic device mounting structure of the present invention.

FIG. 2 is an explanatory view showing a mounting method according to a mounting structure of an electronic device of the present invention.

FIG. 3 is an exploded perspective view showing a conventional electronic device mounting structure.

FIG. 4 is an explanatory view showing a mounting method according to a conventional electronic device mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Attachment member 2 Upper wall 3 Side wall 4 Attachment leg 4a Neck 4b Connecting part 4c Attachment piece 4d Notch 4e Upper protruding part 4f Lower protruding part 4g Rib 4h Locking part 4j Lower edge 4k Lower edge 6 Conductive pattern 7 Printed circuit board 8 Through hole

Claims (7)

[Claims] 1. A box-shaped mounting member made of a metal plate and having a mounting leg projecting downward from a side wall, and a printed board having a through hole for mounting the mounting member, wherein the mounting leg is A neck connected to the side wall, and having a mounting piece connected to the side of the neck and arranged in parallel with the neck,
The mounting piece is inserted into the through hole of the printed board, the upper and lower projecting portions of the mounting piece project from above and below the through hole, respectively, and the mounting piece is inclined with respect to the printed board, A mounting structure for an electronic device, wherein upper and lower protrusions of a mounting piece are locked in the through holes. 2. The mounting structure for an electronic device according to claim 1, wherein the mounting piece is inclined by tilting the upper protruding portion in a thickness direction. 3. The electronic device mounting structure according to claim 1, wherein a pair of said mounting pieces are provided on both sides of said neck. 4. The mounting structure for an electronic device according to claim 3, wherein the inclination directions of the pair of mounting pieces are different from each other. 5. A notch is provided at a lower end of the neck,
2. A lower end edge of the mounting piece is made farther than a lower end edge of the neck portion with respect to the printed circuit board.
5. The mounting structure for an electronic device according to any one of items 1 to 4. 6. The mounting structure for an electronic device according to claim 1, wherein a rib is provided on the mounting piece over the upper and lower protrusions. 7. The electronic device mounting structure according to claim 1, wherein a locking portion for locking to an upper surface of the printed circuit board is provided on the neck portion.