KR200164858Y1 - Mounting position guide structure on a pcb - Google Patents

Abstract

The main design of the main board of the 1 board type, in which the TACT SWITCH operated by the press of the function key (KNOB FUNCTION) mounted at the front position of the front case such as the monitor is mounted at the upper position The PCB is mounted on the fixing bracket to prevent the above-described malfunction of the tack switch due to the deviation of the position. The front case is equipped with a function key, and the function key is mounted on the front case. Print circuit comprising a bracket for holding the main printed circuit board of the one-board type in which the tack switch actuated by pressure is fixed to the predetermined position, and a rear case coupled to the front case to protect the internal parts In the substrate mounting position guide structure, the bracket is formed to protrude at a predetermined position on the inner surface of the bracket, the main printing on the bracket When mounted to the substrate in contact with the sides and points of the main printed circuit board and provides the select switch pressed when the main printed circuit printing, characterized by configured by comprising means for preventing that the flow of the substrate circuit board mounting location guide structure.

Description

Printed Circuit Board (PCB) Mounting Position Guide Structure

The present invention relates to a printed circuit board (PCB) mounting position guide structure, and more specifically, a Tact SWITCH operated by pressing a function key (KNOB FUNCTION) mounted on a front surface of a front case such as a monitor. A printed circuit that prevents the above-described tack switch malfunction due to deviation of the fixed position when the main printed circuit board (PCB) of the one board type mounted on a predetermined position on the upper surface is mounted on its fixing bracket. It relates to a substrate mounting position guide structure.

As shown schematically in FIG. 1, a monitor structure in which a main printed circuit board according to the related art and a printed circuit board for function keys separate from a conventional key board (2 BOARD TYPE) is mounted, the cathode ray tube 2 includes a first bracket 3 The main printed circuit board 1 is mounted on the front case 4 and protected by the rear case 9 by a second bracket 3A fixed to the first bracket 3 described above. The printed circuit board 7 is equipped with a plurality of function keys 5 at a predetermined position in front of the front case 4 and a tack switch 6 which is contacted and operated when the function keys 5 are pressed. ) Is separated from the above-described main printed circuit board (1) and then electrically connected to the front case (4) to be mounted at a predetermined position, and the cathode ray tube (2) described above on the rear side of the above-described second bracket (3A). The video PCB (8), which is separated from the video PCB (2A), is not shown on the main printed circuit board (1). It is connected via a jack.

However, as described above, as the main printed circuit board 1 and the separate printed circuit board 7 are mounted on the front case 4, the cost of the cost increases due to the increase in the number of parts, and the labor cost increases. Will have a problem of poor workability to assemble.

Therefore, a monitor which reduces the cost cost by mounting the main printed circuit board of the original board type as schematically shown in FIG. 2 is used.

In the monitor structure in which the main board of the one-board type described above is mounted, a power switch 10 and several function keys 5 for turning the monitor on and off are mounted at a predetermined position in front of the front case 4. A front case 4 to which the cathode ray tube 2 is mounted as a fastening member, a first bracket 11 fixed to the front case 4 to fix and support the cathode ray tube 2 described above; A shield unit 17 mounted on the first bracket 11 to shield the leakage of electromagnetic waves generated from the cathode ray tube 2 and the main printed circuit board 12, and fixed to the first bracket 11 described above. 2 a main printed circuit board 13 fixed to the bracket 12 and having various circuit components such as a tack switch 6 and a transistor, which are in contact operation when the function key 5 is pressed, are mounted at predetermined positions on the upper surface thereof, The rear case (9) is fixed to the front case (4) to protect the internal parts. It is configured in comparison.

Reference numeral 14 is a bottom member fixed to the bottom 16 of the above-described second bracket 12 to which the stand 16 for rotating and rotating the monitor within a predetermined angle range with respect to the user is fixed, and 15 is the cathode ray tube 2 described above. D-GAUSSING COIL to remove the magnetic field remaining in the

However, since the aforementioned main printed circuit board 13 is fixed to the above-described second bracket 12 by several fastening members (not shown), the main printed circuit board (C) corresponds to the diameter of each of the aforementioned fastening members and corresponds thereto. The main printed circuit board 13 is a small amount in the left, right and front and rear directions with respect to the second bracket 12 when the above-described tack switch 6 is pressed by the error amount of the through holes respectively formed in 13). Will flow.

In addition, when the above-described main printed circuit board 13 is mounted on the above-described second bracket 12, the main printed circuit board 13 is in surface contact with the inner surface thereof, thereby deforming the above-described second bracket 12 during molding. In this case, it takes too much time to mount the main printed circuit board 13 described above on the second bracket 12 in the design range.

Therefore, when the above-mentioned tack switch 6 is mounted on the main printed circuit board 13 at a position outside the design range, when the function key 5 mounted at the predetermined position on the front surface of the front case 4 is operated. The above-described tack switch 6 does not operate immediately, which causes a functional problem. That is, when the above-described main printed circuit board 13 is mounted out of a fixed position, the above-described tack switch 6 is positioned before and after the design position.

Therefore, when the above-mentioned tack switch 6 is located ahead of the correct position, the above-mentioned tack switch 6 and the above-described function key 5 are caused to cause malfunction of the tack switch 6, and thus, the tack switch 6 described above. When the switch 6 is located behind the home position, if the above-mentioned tack switch 6 is forcibly pressurized, the related equipment may be damaged as well as a malfunction. Will have

Accordingly, an object of the present invention is to provide a board type (1 BOARD TYPE) in which a tack switch operated by pressing of a function key (KNOB FUNCTION) mounted on a front surface of a front case such as a monitor is mounted directly on a predetermined position on a top surface. When the main printed circuit board is mounted on its fixing bracket, the reliability of the product can be secured by preventing the above-mentioned malfunction of the tack switch due to the flow of the main printed circuit board caused by the pressure of the tack switch caused by the above-mentioned tack switch. It is to provide a printed circuit board mounting position guide structure to facilitate the work of mounting a main printed circuit board in the correct position of its bracket to improve workability.

1 is a schematic side view of a monitor having a two board type printed circuit board mounted with a main printed circuit board and a function key printed circuit board according to the prior art;

2 is a schematic exploded perspective view of a monitor on which a main printed circuit board of a general one board type is mounted;

Figure 3 is a schematic perspective view of the main portion of the printed circuit board mounting position guide structure according to an embodiment of the present invention,

4 is a schematic side view of a monitor to which a printed circuit board mounting position guide structure according to an embodiment of the present invention is applied.

Explanation of symbols used in the main part of the drawing

1,13: main printed circuit board 2: cathode ray tube (CRT)

4: Front case 5: KNOB FUNCTION

6: tack switch 7: printed circuit board

8: Video Recipe 9: Rear Case

10: power switch 11: first bracket

12: second bracket 14: bottom member

15: D-GAUSSING COIL 16: Stand member

17: shield unit 18: protrusion for position control

An object of the present invention described above, the front case is equipped with a function key, and the main printed circuit board of the one board type fixed to the front case is mounted on the front case and the tack switch is operated by pressing the function key is fixed to a predetermined position In the printed circuit board mounting position guide structure characterized in that it comprises a bracket and the rear case is coupled to the front case to protect the internal components, the bracket is formed to protrude to a predetermined position on the inner surface of the bracket, the main in the bracket And a means for preventing the flow of the main printed circuit board when the tack switch is pressed when the printed circuit board is mounted in point contact with the side surface of the main printed circuit board. Is achieved.

According to a preferred feature of the present invention, the flow preventing means has a first state of controlling a fixed position at which the main printed circuit board is mounted with respect to the bracket when the main printed circuit board is mounted on the bracket, and when the tack switch is pressed. And a second state for preventing the main printed circuit board from flowing with respect to the bracket.

A preferred feature of the present invention, the flow preventing means is provided with a plurality of projections for position control which is embossed to project the inner surface of the bracket.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic exploded perspective view of a monitor on which a main printed circuit board of a general one board type is mounted; FIG. 3 is a schematic perspective view illustrating main parts of a mounting position guide structure of a printed circuit board according to an embodiment of the present invention; 4 is a schematic side view of a monitor to which a one board type printed circuit board mounting position guide structure according to an embodiment of the present invention is applied.

As shown in detail in the drawing, the power switch 10 and several function keys 5 and the cathode ray tube 2 which are mounted at a predetermined position in front of the front case 4 and turn on or off the monitor are fastened. The front case 4 fixed as a member, the first bracket 11 fixed to the front case 4 above to support the cathode ray tube 2 described above, and the first bracket 11 described above. It is fixed to the shield unit 17 for shielding the leakage of electromagnetic waves generated from the cathode ray tube 2 and the main printed circuit board 12 and the second bracket 12 fixed to the first bracket 11 described above. The main printed circuit board 13 of the one board type, in which various circuit components such as a tack switch 6 and a transistor, which operate in contact with one function key 5 when pressed, is mounted at a predetermined position on the upper surface, and the front case 4 described above. The structure provided with the rear case 9 couple | bonded with (circle) and protecting an internal component is FIG. As it is applied in the same manner as shown in the detailed description thereof will be omitted, duplicate quotation marks are the same.

Therefore, according to a preferred embodiment of the present invention, when the main printed circuit board 13 of the above-mentioned one board type on the second bracket 12 is mounted on the inner surface of the second bracket 12 described above. The main printed circuit board 13 with respect to the above-described second bracket 12 when the tack switch 6 is pressurized is controlled by controlling the mounting position of the main printed circuit board 13 described above in point contact with the side surface of the base 13. A plurality of projections 18 for position control which prevents the flow of) are protruded, and the aforementioned position control protrusions 18 are embossed.

Referring to the operation of the present invention constituted as described above, the front board (4) of the one-board type in which the tack switch (6) actuated by the pressing of the function key (5) mounted on the front predetermined position of the front case (4) is mounted on one side of the upper surface When the main printed circuit board 13 is mounted on the second bracket 12 described above, each of the above-described protrusions 18 and the main printed circuit board 13 formed on the inner surface of the second bracket 12 described above. As the side surfaces make point contact (line contact) with each other, the mounting position of the main printed circuit board 13 described above is easily controlled when mounted on the second bracket 12 described above.

At this time, the through-hole formed in the aforementioned main printed circuit board 13 and the diameter of the fastening member not shown when the main printed circuit board 13 of the one-board type described above is mounted on the second bracket 12 and corresponding thereto. Gaps are generated between the balls by a predetermined amount of error. At this time, since the above-described protruding portion 18 prevents the flow of the above-described main printed circuit board 13, the above-described main printed circuit board 13 is seated in the design position of the above-described second bracket 12. To lose.

Therefore, as schematically shown in FIG. 4, when pressing a predetermined function key 5 mounted at a predetermined position in front of the front case 4 of the monitor, the aforementioned function key 5 is the one-board type described above. By maintaining a predetermined distance (L = 0.5 mm) with respect to the tack switch 6 mounted at a predetermined position on the upper surface of the main printed circuit board 13 of the main printed circuit board 13, the above-described function key 5 is Contact is made correctly and it works.

In addition, even when the user presses the function key 5 above the predetermined pressure according to the user, the aforementioned main printed circuit board 13 flows by the protrusion 18 formed on the inner side of the second bracket 12 described above. Is prevented, and the operability of the function key 5 is to be constant.

As described above, the printed circuit board mounting position guide structure according to the present invention is mounted at a predetermined position in front of the front case such as a monitor, and a tack switch operated by pressing a function key (KNOB FUNCTION) by a user has a predetermined position on an upper surface thereof. This prevents flow of the main printed circuit board caused by pressurization of the tack switch due to the assembly error when the main printed circuit board of the 1 board type is directly mounted on the fixing bracket. By preventing the malfunction of the tack switch described above, the functional reliability of the product is ensured from the user, and the work of mounting the aforementioned main printed circuit board in the correct position of the bracket can be easily performed, thereby improving workability. .

Claims (3)

A front case to which a function key is mounted, a bracket for fixing a one-board type main printed circuit board to which a tack switch mounted to the front case and operated by pressing the function key is mounted at a predetermined position, and coupled to the front case In the printed circuit board mounting position guide structure characterized in that it comprises a rear case to protect the internal components: And a means for protruding at a predetermined position on the inner surface of the bracket and preventing the main printed circuit board from flowing when the tack switch is pressed by contacting the side of the main printed circuit board when the main printed circuit board is mounted on the bracket. Printed circuit board mounting position guide structure, characterized in that configured by. The method of claim 1, wherein the flow preventing means; A first state of controlling a fixed position at which the main printed circuit board is mounted with respect to the bracket when the main printed circuit board is mounted on the bracket; And And a second state for preventing the main printed circuit board from flowing with respect to the bracket when the tack switch is pressed. 3. The printed circuit board mounting position guide structure according to claim 1 or 2, further comprising several protrusions for position control which are embossed on the inner surface of the bracket by the flow preventing means to protrude.