KR19980067790U - Guide structure for mounting video PC - Google Patents

Abstract

According to the present invention, when a large video monitor (20 inches or larger) is connected to a main printed circuit board by using a connector, a separate video PCB is separated from a video tube of a cathode ray tube (CRT). It is designed to prevent the malfunction of the monitor function by changing the pitch of the connector due to insertion. It is formed on the first connector formed on the main printed circuit board mounted on the front case and the video PCB unit separated from the video PCB of the cathode ray tube. And a second connector for connecting the video PCB unit to the main printed circuit board when the first connector is connected, wherein the guide structure for mounting a video PCB of the monitor corresponds to the main printed circuit board and the video PCB unit. Is formed so as to couple the second connector to the first connector Provided is a guide structure for mounting a video PCB, characterized in that it comprises a means for preventing the pitch change due to each misinsertion.

Description

Guide structure for mounting video PC

The present invention relates to a guide structure for mounting a video PCB, and more particularly, a separate video PCB is separated from the video PCB of the cathode ray tube (CRT) according to the size of the monitor (20 inches or more). The present invention relates to a guide structure for mounting a video PCB to prevent malfunction of a monitor function by changing a pitch of a connector due to a misinsertion of a connector when interconnecting a main printed circuit board.

In general, a small monitor with a small monitor size is smaller than a video PCB with respect to the main printed circuit board, and is connected to the rear end of the cathode ray tube by a socket. When the monitor is large (20 inches) Above), a separate video PCB is separated from the video PCB of the cathode ray tube so as to respond to the drop test of the monitor according to the size and weight of the video PCB described above and the impact generated during the transfer process in the assembly line. It is connected to the main printed circuit board and used.

As shown in FIG. 1, a monitor structure having a separate video PCC connected to a main PCB by being separated from a video PC mounted on a cathode ray tube generally includes a front case 1 in which a cathode ray tube 3 is mounted. ), A first bracket 2 mounted as a fastening member not shown in the front case 1 to fix the cathode ray tube 3 and the second bracket 4 fixed to the first bracket 2 described above. ) And a video PCB of the cathode ray tube (3), which is mounted at a predetermined position behind the main printed circuit board (5) on which various circuit components such as transistors (TR) and the like are mounted. A separate video PCB (12), which is separated for 6), is internally connected, and is connected to the video PCB (6) of the cathode ray tube (3) and the main printed circuit board (5), respectively, via cables. ) And the inner part in combination with the front case (1) described above Further included is a rear case (9) to protect.

Reference numeral 15 is a video bracket to which the video PCB 12 of the video PCB unit 7 described above is fixed, and 16 is a video shield that shields the video PCB 12 to shield the leakage of electromagnetic waves from the video PCB 12. 17 is a shield unit for shielding the leakage of electromagnetic waves from the cathode ray tube 3 and the main printed circuit board 5, and 18 is a degaussing coil for removing the magnetic field remaining in the cathode ray tube 3.

However, as described above, a separate video PCB unit 7 which is separated from the video PCB 6 connected to the socket of the electron tube of the cathode ray tube 3 by the socket is fixed behind the above-described second bracket 4. A video bracket 15 for fixing the video PCB 12 constituting the above-described video PCB unit 7 to the second bracket 4, and a video shield 16 for shielding the video PCB 12 described above. The problem of inferior workability due to the increase in the fixing position and the grounding point of the fastening member fixed to the second bracket 4 described above, and the size of the monitor set in the front and rear direction becomes larger overall, so that the user can use a certain space when using the same. It will have a problem that becomes uncomfortable.

In addition, as the video PCB 12 of the separate video PCB unit 7 described above is connected to the video PCB 6 of the main printed circuit board 5 and the cathode ray tube 3, respectively, via a cable, Since the cable is exposed to the outside in a long time, the assembly is extremely poor due to mutual interference with adjacent components in the assembly line.

Therefore, as shown in FIG. 2, the first connector 10 is formed at a predetermined position on the upper surface of the main printed circuit board 5 described above, and the second connector 11 corresponding to the first connector 10 is formed. Is formed on the bottom surface of the above-described video PCB unit 7, and the above-described video PCB 12 for the main printed circuit board 5 is combined with the first and second connectors 10 and 11 described above. To be connected.

However, the second connector 11 formed on the bottom of the video PCB unit 7 is coupled to the first connector 10 formed at a predetermined position on the upper surface of the main printed circuit board 5 mounted on the second bracket 4 described above. In this case, it is difficult to accurately match the pitch of each of the first and second connectors 10 and 11 described above, resulting in poor workability, and inadvertent operation of the first connector 10 and the second connector ( 11) In the case of combining each pitch inconsistent, it causes a malfunction of the monitor function, which causes the product to be treated as a defective product, resulting in poor workability.

Accordingly, an object of the present invention is to provide a pitch due to a misinsertion of a connector when connecting a separate video PCC to a main PCB using a connector according to the size of the monitor (20 inches or more). It is to provide a guide structure for mounting a video TV to prevent the malfunction of the monitor function by the change.

Another object of the present invention is to easily connect a separate video PCB of the cathode ray tube to the video PCB of the main printed circuit board, thereby greatly reducing the incidence of product defects on the assembly line, thereby improving assembly workability. It is to provide a guide structure for mounting a video PCB.

1 is an exploded perspective view of a monitor having a separate video PCB separated from the video PCB of a typical cathode ray tube and connected to a main printed circuit board;

Figure 2 is a perspective view of the main portion of the video video connection structure according to the prior art,

3 is a perspective view of an excerpt of the guide structure for mounting a video PCB according to an embodiment of the present invention,

4 is a schematic side view of a monitor to which a guide structure for mounting a video PC according to an embodiment of the present invention is applied.

* Explanation of symbols used in the main part of the drawing *

1: front case

2: first bracket

3: cathode ray tube

4: 2nd bracket

5: main printed circuit board

6,12: Video

7: Video PCB Unit

9: rear case

10: first connector

10A: pin

11: 2nd connector

13: hook

14: Hanging jaw

15: Video Bracket

16: video shield

17: shield unit

18: degaussing coil

20: Guide pin

22: coupling hole

An object of the present invention described above is formed on a first connector formed on a main printed circuit board mounted on a front case, and a video PCB unit separated from a video PCB of a cathode ray tube, and connected to the first connector when connected to the first connector. A video PCB mounting guide structure of a monitor having a second connector for connecting the video PCB unit to a substrate, the guide structure being formed corresponding to the main printed circuit board and the video PCB unit, the second connector being connected to the first connector. It is achieved by providing a guide structure for mounting a video PCB, characterized in that it is configured with means for preventing the pitch change due to each of these misinsertions when joining the connectors.

According to a preferred feature of the present invention, the means may include at least one guide pin formed at an adjacent position of the first connector longer than a pin length of the first connector, and the video PCB unit corresponding to the guide pin. It is provided with a coupling hole formed at a predetermined bottom surface, and when the second connector is coupled to the first connector, the guide pin and the coupling hole are pre-coupled to guide the coupling of the second connector to the first connector. It is characterized by preventing the wrong insertion.

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

Figure 3 is a perspective view of the main portion of the video PCB mounting guide structure according to an embodiment of the present invention, Figure 4 is a schematic side view of a monitor to which the video PCB mounting guide structure according to an embodiment of the present invention is applied.

As shown in detail in the drawing, the front case 1, the first bracket 2 mounted on the front case 1 to support the cathode ray tube 3 and the first bracket 2 described above. A main PCB (5) mounted on a fixed second bracket (4), to which various circuit components such as a transistor (TR) and an integrated circuit (IC) are mounted, and a video PCB (6) of the cathode ray tube (3) described above. A separate video PCB unit 7 connected to the main printed circuit board 5 described above and connected to the main printed circuit board 5, a first connector 10 formed at a predetermined position of the main printed circuit board 5 described above, and It is formed in the above-described video PCB unit 7 corresponding to the first connector 10, and when combined with the above-described first connector 10, the video PCB 12 of the above-described video PCB unit 7 is described. The second connector 11 to be connected to the main printed circuit board 5 and the front case 1 described above are combined with each other. And a rear case (9) to protect the components.

In addition, at least one hook portion 13 is formed on the rear surface of the video PCB unit 7, and the second connector 4 is formed at a predetermined position of the second bracket 4. 11, the configuration of the hooking jaw 14 is fixed to the hook portion 13 is fixed when combined, so that the same description as that shown in Figure 1 and 2 will be omitted, duplicated reference numerals Are described in the same manner.

Therefore, according to a preferred embodiment of the present invention, at least one guide pin 20 in the adjacent position of the above-described first connector 10 is longer than the length of the above-described pin 10A of the first connector 10. The coupling hole 22 is formed at a predetermined position of the video PCB unit 7 so as to correspond to the guide pin 20 described above, and the coupling hole 22 is formed in relation to the first connector 10 described above. When the second connector 11 is coupled, the guide pin 20 is pre-coupled to guide the coupling of the second connector 11 to the first connector 10 to prevent misinsertion.

Referring to the use of the guide structure for mounting a video PCB (VIDEO PCB) according to the present invention is configured as described above, the cathode ray tube by the first bracket (2) fixed to the fastening member not shown in the front case (1) (3) is fixed and the main printed circuit board 5 to which various circuit components such as transistors are mounted is mounted on the second bracket 4 fixed to the first bracket 2 described above, and the above-described video PCB By coupling the second connector 11 formed on the bottom surface of the unit 7 to the first connector 10 formed at a predetermined position on the upper surface of the main printed circuit board 5 described above, the rear end of the electron tube of the cathode ray tube 3 is described. A separate video PCB 12 separated from the video PCB 6 connected to the socket is connected to the main printed circuit board 5.

In this case, before the second connector 11 formed on the bottom surface of the video PCB unit 7 is coupled to the first connector 10 formed at the predetermined position of the main PCB 5, the above-described video PCB The coupling pin 22 formed on the bottom of the unit 7 corresponds to the guide pin 20 formed on the main printed circuit board 5 longer than the length of the pin 10A of the first connector 10 described above. As the first coupling, the coupling is guided to the correct position of the second connector 11 with respect to the first connector 10 described above, whereby the first connector 10 and the second connector 11 described above Pitch change due to incorrect insertion is prevented, which prevents product malfunction.

On the other hand, the hook portion 13 formed in at least one or more of the above-described video PCB unit 7 is seated on the engaging jaw 14 formed at the predetermined position of the second bracket 4 described above, and then the video as a fastening member. By fixing the PCB unit 7 to the second bracket 4, the above-described video PCB unit 7 is prevented from flowing with respect to the main printed circuit board 5.

As described above, according to the present invention, the video PCB mounting guide structure includes a separate video PCB separated from the video tube of the cathode ray tube according to the size of the monitor (20 inches or more) by using a connector on the main printed circuit board. This prevents malfunction of the monitor function by changing the pitch due to incorrect insertion of the connector, and increases the reliability of the product.

In addition, it is easy to connect a separate video PCB, which is separated from the video tube of the cathode ray tube, to the main printed circuit board, thereby greatly reducing the incidence of product defects in the assembly line and improving workability. .

Claims (2)

A first PCB formed on the main printed circuit board mounted on the front case and a video PCB unit separated from the video PCB of the cathode ray tube to connect the video PCB unit to the main printed circuit board when connected to the first connector. In a guide structure for mounting a video television of a monitor having a second connector to be connected: And a means for preventing the pitch change due to the misinsertion of the second connector when the second connector is coupled to the first connector. The video PCB is formed to correspond to the main PCB and the video PCB unit. Guide structure for mounting. The method of claim 1, wherein the means; At least one guide pin formed at an adjacent position of the first connector longer than a pin length of the first connector; And And a coupling hole formed at a predetermined position on a bottom surface of the video PCB unit to correspond to the guide pin, and the guide pin and the coupling hole are pre-coupled when the second connector is coupled to the first connector. A guide structure for mounting a video PCB according to claim 1, wherein the second connector is guided to the connector so as to prevent misinsertion.