KR20010001933A - locking device of socket for connecting between braun tube and video board in video display appliance - Google Patents

Abstract

PURPOSE: A locking device of socket for connection CRT of video displayer and video board is provided to simplify the assemble process of the video displayer and simplify the dissemble and re-assemble process between the CRT and the video board for AS. CONSTITUTION: A locking device of socket for connection CRT of video displayer and video board comprises a locker and an unlocker. The locker is mounted within a socket and locks one pin(300a) of plural pins of an electron gun(3) coupled to the socket(4) to maintain the locking state between the socket(4) and the electron gun(3). The unlocker is mounted on one side of the socket(4) to unlock the locking state of the pin(300a) locked by the locker.

Description

Locking device of socket for connecting between braun tube and video board in video display appliance}

The present invention relates to a socket for a video display device, and more particularly, to improve the structure of the socket for connecting the CRT to the image part substrate, so that the CRT and the image part substrate can be easily assembled and separated. .

FIG. 1 is a side cross-sectional view schematically illustrating an image display device, and FIGS. 2A and 2B are enlarged views of a portion A of FIG. 1, which will be described below with reference to the related art.

Conventionally, in order to couple the imaging unit substrate 2 to the electron gun 3 located behind the CRT1, as shown in FIG. 2A, the pinhole 400 of the socket 4 provided in the imaging unit substrate 2 is shown. ) And the pin 3 of the electron gun 3 to be inserted into the pinhole 400 of the socket 4 while the pin 300 of the electron gun 3 is aligned. After bonding to each other, as shown in FIG. 2B, an adhesive 9, which is a thermoplastic resin, is applied to the bonding portion between the socket 4 and the electron gun 3.

That is, in the related art, when assembling the imaging unit substrate 2 to the electron gun 3, the socket 4 and the electron gun 3 provided in the imaging unit substrate 2 are combined, and then the socket 4 and the electron gun are combined. By applying the release preventing adhesive 9 to the coupling portion of the pin 300, the bonding force of the socket 4 and the electron gun pin 300 is secured by the bonding force caused by the adhesive 9.

However, such a conventional technology device, after the assembly of the socket (4) and the electron gun (3), since the separation preventing adhesive (9) to be added to ensure the reliability of the coupling portion, various problems occur as follows.

First, the separation-prevention adhesive 9 is sensitive to temperature changes according to seasons such as deterioration of adhesive strength in winter, and thus, it is difficult to continuously maintain the bonding reliability regardless of the season.

And, there is a problem that the working environment worsens because of using an adhesive harmful to the human body.

In addition, when the CRT 1 and the image part substrate 2 are separated for an after-service of a product, an adhesive 9 applied to a joint portion of the CRT 1 and the image part substrate 2 may be used. ) Must be removed, which is difficult, cumbersome and inferior.

That is, since the socket 4 of the conventional image part substrate 2 has a structure in which only the pinhole 400 into which the electron gun pin 300 is inserted is formed, the socket 4 and the electron gun 3 are coupled to each other after the socket 4 is formed. As the anti-separation adhesive 9 must be added to prevent separation, there are disadvantages of generating various problems as described above.

On the other hand, as another method applied to prevent the separation of the socket 4 and the electron gun 3, a method of attaching a sponge (not shown) having a predetermined thickness to the back of the image portion substrate (2) Used.

That is, by attaching a sponge having a predetermined thickness to the back of the imaging unit substrate 2 so that the sponge is compressed by the rear cover fastened to the rear of the device to prevent the separation of the socket 4 and the electron gun (3). .

However, the method of preventing the separation between the socket 4 and the electron gun 3 by using a sponge is that the solder portion of the substrate is separated by the deformation (bending) of the image part substrate 2 when the rear cover of the device is fastened. There is a problem that I cause a defective product.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the present invention newly improves the structure of the socket for connecting the CRT to the image part substrate, simplifies the assembly process in the image display device assembly line, and after-sales service. The purpose of the present invention is to facilitate the separation and reassembly of the CRT and the image part substrate, which are carried out afterwards.

1 is a side cross-sectional view schematically showing an image display device

2A and 2B are enlarged views of a portion A of FIG. 1;

Figure 2a is a perspective view showing a state before the image portion substrate is coupled to the CRT

Figure 2b is a perspective view showing a state after the image unit substrate is coupled to the CRT

3A and 3B are applied to the technical device of the present invention,

Figure 3a is an external perspective view showing a state before the imaging unit substrate is coupled to the CRT

Figure 3b is an external perspective view showing a state after the image unit substrate is coupled to the CRT

4a to 4c is a perspective view of the main portion showing the operation of the technical device of the present invention,

Figure 4a is a state diagram before the pin is inserted

4B is a state diagram in which the pin is being inserted

4C is a state diagram after the insertion of the pin is completed

Fig. 5A is a front view of the locking device of Fig. 4A as seen from the electron gun side;

Fig. 5B is a front view of the locking device of Fig. 4B as seen from the electron gun side;

5C is a front view of the locking device of FIG. 4C as seen from the electron gun side;

5D is a front view of the state in which the operation knob is operated behind the guide hole to release the locking action on the pin from the electron gun side;

6 is a perspective view of the main part of the present invention as viewed from the bottom;

Figure 7a is a perspective view showing a fixing plate of the present invention device

Figure 7b is a perspective view showing an elastic plate of the technical device of the present invention

Explanation of symbols on the main parts of the drawings

1: Brown tube 2: Imaging board

3: electron gun 300,300a: electron gun pin

301: Boss 310, 410: Marker

4: socket 400,400a: pinhole

401: serviceman 5: Fixed Edition

500: curved surface 6: elastic plate

600: recessed surface 601: pin crimping portion

602: V-shaped elastic portion 603: connecting portion

7: Operation knob 700: guide home

701: Flange 8: Locking hole

9: adhesive

In order to achieve the above object, the present invention provides an image display apparatus having an electron gun coupled to the rear of the CRT and an image part substrate having a socket having a pinhole into which a pin of the electron gun is inserted; A locking means installed inside the socket to lock at least one of the pins of the electron gun coupled to the socket to maintain a coupling state between the socket and the electron gun, and installed on one side of the socket and locked by the locking means. Locking device for a socket for connecting the CRT and the image part substrate of the image display device, characterized in that the unlocking means for releasing the locked state of the electron gun pin is provided.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3A to 7B.

3A and 3B are applied to the technical device of the present invention, Figure 3a is an external perspective view showing a state before the image unit substrate is coupled to the CRT, Figure 3b is an appearance showing the state after the image unit substrate is coupled to the CRT. Perspective view.

4A to 4C are main part perspective views showing the operation of the apparatus of the present invention, and FIG. 4A is a state diagram before the pin is inserted, and FIG. 4B is a state diagram during the pin insertion, and FIG. 4C is a pin insertion. This is a state diagram after completion.

5A is a front view of the locking device of FIG. 4A viewed from the electron gun side, FIG. 5B is a front view of the locking device of FIG. 4B viewed from the electron gun side, FIG. 5C is a front view of the locking device of FIG. 4C viewed from the electron gun side, and FIG. This is a front view of the state where the operation knob is operated behind the guide hole to release the locking action on the pin.

6 is a perspective view of the main portion of the technical device of the present invention as viewed from the bottom.

According to the present invention, an image part substrate having an electron gun 3 coupled to a rear side of the CRT 1 and a socket 4 having a pinhole 400 into which the pin 300 of the electron gun 3 is inserted is formed at the front center portion thereof. A video display device having 2); The socket 4 and the electron gun 3 are installed by locking one of the pins 300a of the pins 300 and 300a of the electron gun 3 coupled to the socket 4 and installed inside the socket 4. Locking means for maintaining a coupled state with, and the unlocking means for releasing the locking state of the electron gun pin (300a) is installed on one side of the socket (4) locked by the locking means.

At this time, the locking means is fixed to the inner surface of one side of the installation space inside the socket 4, the fixing plate 5 is formed with a curved surface 500 having the same radius of curvature as the pin 300a of the electron gun 3 in the center of the surface And (see FIG. 7A), the pin 300a and the fixing plate 5 together with the elastic plate 6 for locking the pin 300 by crimping the outer surface of the pin 300a.

Here, the elastic plate 6 is provided with a concave indentation surface 600 of the same radius of curvature that is in contact with the fixing plate 5 and is opposed to the curved surface 500 before insertion of the electron gun pin 300a. It consists of a pin crimping portion 601 and a V-shaped elastic portion 602 extending from the pin crimping portion 601 and having elasticity by material characteristics and geometrical geometry of the facet itself. (See Fig. 7B. )

On the other hand, the unlocking means, extending from the pin pressing portion 601 of the elastic plate 6 in a direction orthogonal to the longitudinal direction of the electron gun pin (300a) and connected to the operation knob (7) operating knob (7) It is installed to be connected to the connecting portion 603 and the connection portion 603 of the fixed plate 5 to receive the operating force applied to the) so as to space the distance between the elastic plate 6 and the fixed plate 5 It consists of an operation knob 7.

Here, the bottom of the operation knob 7 is provided with a guide groove 700 formed to be inclined at a predetermined angle (θ) with respect to the moving direction of the operation knob 7, the elastic plate 6 on one inner surface of the guide groove 700. Position of the connecting portion 603 is in contact with, and the operating force applied to the operating knob 7 according to the operating direction of the operating knob 7 is connected to the inner surface of one side of the guide groove 700 through the connecting portion 603. It is configured to be delivered to the elastic plate (6).

In addition, the operation knob 7 is assembled at the lower edge of the operation knob 7 so as to be movable in one direction along the guide hole 401 communicating with an installation space formed in the socket 4. And a flange 701 for guiding the forward and backward movements in the guide hole 401 of the manipulation knob 7.

On the other hand, at the tip of the electron gun pin 300a inserted into the locking hole 8 formed by the curved surface 500 of the fixing plate 5 constituting the locking means and the recessed surface 600 of the elastic plate 6, the locking The boss 301 having a larger diameter than the other parts of the pin 300a to be fixed to the fixing plate 5 forming the locking hole 8 and the elastic plate 6 as it passes through the hole 8 completely. Is formed.

Also, among the pinholes 400 of the socket 4, unlike the other pins 300, the pinholes 400a into which the pins 300a having the bosses 301 are formed at the distal end are inserted into the pinholes 400a. It is formed into an insertable size.

On the other hand, the boss on the outer peripheral surface of the electron gun outer circumference behind the pin 300a provided with the boss 301 and the pin hole 400a upper side of the pin hole 400a into which the boss 301 of the socket 4 is formed is inserted. Markers 310 and 410 are separately provided to make it easy to find the location of the pin 300a on which the 301 is formed and the location of the pinhole 400a corresponding to the pin 300a.

The operation of the present invention configured as described above is as follows.

When the electron gun 3 positioned behind the CRT 1 and the imaging unit substrate 2 are assembled, the pinhole of the socket 4 provided in the imaging unit substrate 2 as shown in FIG. In the state where the pins 300 and 300a of the electron gun 3 coincide with each other, the pinholes 400 of the sockets 4 corresponding to the pins 300 and 300a of the electron gun 3 respectively. The insertion of the socket 4 and the electron gun 3 is completed as shown in FIG. 3B by being fully inserted into the 400a.

At this time, on the outer peripheral surface of the upper side of the pin hole 400a into which the electron gun outer peripheral surface behind the pin 300a provided with the boss 301 and the pin 300a on which the boss 301 of the socket 4 is formed are inserted. Markers 310 and 410 are separately provided to easily find the position of the pin 300a on which the 301 is formed and the position of the pinhole 400a corresponding to the pin 300a, thereby facilitating assembly.

Meanwhile, the present invention locks the pin 300a having the boss 301 of the pin of the electron gun 3 inside the socket 4 of the present invention when the socket 4 and the electron gun 3 are coupled to each other. (4) and a locking device for maintaining the engagement state between the electron gun (3) is provided, the separation between the CRT (1) and the imaging unit substrate (2) unless the lock state for the pin (300a) is released Is prevented.

Hereinafter, the locking process and the unlocking process for the electron gun made by the locking means and the unlocking means will be described in more detail.

First, as shown in FIGS. 4A and 5A, before the pins 300 and 300a of the electron gun 3 are inserted into the pinholes 400 and 400a of the socket 4, the electron gun 3 and the socket 4. ), Even though the coupling proceeds, the curved surface 500 and the elastic plate 6 of the fixed plate 5 in which the pin 300a having the boss 301 at the tip of the pin of the electron gun 3 is installed inside the socket 4. Immediately before entering into the lock hole 8 formed by the recessed surface 600 of the fixed plate 5, the pin pressing portion 601 of the fixing plate 5 and the elastic plate 6 is kept in close contact with each other. The diameter d ₁ of the locking hole 8 formed by the curved surface 500 and the recessed surface 600 of the elastic plate 6 is maintained smaller than the diameter of the pin 300a.

In this state, the coupling between the electron gun 3 and the socket 4 proceeds such that the pin 300a with the boss 301 of the pin 300 of the electron gun 3 is curved surface of the fixing plate 5. When entering into the locking hole 8 formed by the recess 500 of the 500 and the elastic plate 6, it is possible to elastically deform due to the characteristics of the material and the geometric shape of the elastic portion 602 The elastic plate 6 is pushed in a direction relatively far from the fixed plate 5 by the pushing force of the pin 300a entering the lock hole 8.

At this time, the connecting portion 603 located in the guide groove 700 of the manipulation knob 7 is moved in the direction of the arrow shown in FIG. 5A.

That is, at the initial stage of the coupling between the electron gun 3 and the socket 4, the pin pressing portion 601 of the elastic plate 6 is pushed by the boss 301 provided at the pin 300a at the tip thereof, The diameter of the locking hole 8 formed by the curved surface 500 and the recessed surface 600 of the elastic plate 6 becomes larger.

Thereafter, the coupling progresses to some extent, and the diameter of the locking hole 8 is as shown in FIG. 5B in the state where the pin pressing portion 601 of the elastic plate 6 is completely pushed out by the boss 301 as shown in FIG. 4B. (d ₂ ) is in the same state as the outer diameter of the boss 301 of the pin 300a.

On the other hand, when the coupling between the electron gun 3 and the socket 4 is continued and insertion of the electron gun pins 300 and 300a into the pinholes 400 and 400a is completed, as shown in FIG. As the boss 301 is completely out of the locking hole 8, the jaws of the boss 301 provided in the pin 300a are formed of the fixing plate 5 and the elastic plate 6, which form the locking hole 8. At the same time, the front of the boss 301 of the pin 300a located in the locking hole 8 is curved surface 500 and the elastic plate 6 of the fixing plate 5 by the restoring force of the elastic plate 6. It is pressed between the concave indentation surface 600 provided in the pin pressing portion (601) of.

At this time, the diameter d _{3 of the} locking hole 8 is the same as the outer diameter of the portion where the boss 301 is not formed among the diameters of the pin 300a penetrating the locking hole 8 as shown in FIG. 5C. Will be maintained.

In addition, the connection part 603 which was in the state as shown in FIG. 5B just before the insertion of each electron gun pin 300, 300a into the pinhole 400, 400a is completed by the arrow of FIG. 5B when insertion is completed. Direction to move to the state of Figure 5c.

When the coupling between the socket 4 and the electron gun 3 is completed as described above, the pin 300a with the boss 301 is locked in the socket unless the operator operates the operation knob 7 in a released state. The locked state by the device prevents the separation of the socket 4 and the electron gun 3.

In short, the image display device of the present invention is different from the conventional case in which the electron gun pin 300 is simply inserted into the pinhole 400 of the socket 4, and the pin 300 of the electron gun 3 is locked by the locking device in the socket 4. Since the pin 300a with the boss 301 of the 300a is locked, the electron gun 3 and the socket 4 are separated even if an external force is applied, unless the lock state for the locked pin 300a is released. The phenomenon does not occur.

Therefore, the present invention does not require an additional detachment preventing means such as an adhesive, unlike the prior art, it is possible to simplify the assembly process in the device assembly line when assembling the video display device, the adhesive harmful to humans and difficult to manage You do not need to use it will be able to promote a comfortable working environment.

On the other hand, when the image display device of the present invention needs to separate the CRT 1 from the image part substrate 2 for an after-sales service or the like, the diameter of the lock hole 8 is locked by operating the operation knob 7. The electron gun 3 and the socket 4 can be easily separated in a state in which they are larger than the outer diameter of the boss 301 located behind the fixing plate 5 and the elastic plate 6 forming the hole.

That is, when the operation knob 7 is pushed toward the rear of the socket to release the locking device, the connection part 603 of the elastic plate 6 is in contact with the inner surface of one side of the guide groove 700 formed to be inclined at an angle to the bottom of the operation knob 7. The manipulation force applied to the manipulation knob 7 is transmitted to move the connection portion 603 in the direction of the arrow of FIG. 5C to the position of FIG. 5D.

At this time, the V-shaped elastic portion 602 provided in the elastic plate 6 is retracted as much as possible in a direction approaching each other.

Accordingly, the diameter of the elastic plate 6 pin yaw elevation locking holes 8, as 600 shown in Figure 5d meurosseo step down from the pin (300a), the outer surface having a bonding part 601 of (d ₄ ) Becomes larger than the outer diameter of the boss 301 at the tip of the pin 300a, the force for locking the pin 300a is removed, and the separation operation between the electron gun 3 and the imaging unit substrate 2 can be easily performed even with a small force. A state can be achieved.

On the other hand, Figure 6 is a perspective view of the main portion of the technical device of the present invention viewed from the bottom, the guide groove 700 formed on the bottom of the operation knob 7 is formed to be inclined at a predetermined angle with the moving direction of the operation knob (7), It can be seen more precisely through FIG. 6 that the operating force applied to the manipulation knob 7 can be transmitted to the connection portion 603 of the elastic plate 6 through the inner surface of the guide groove 700 of the manipulation knob.

In the above embodiment, the diameter of one of the pinholes 400a of the socket 4 is enlarged to match the diameter of the boss 301. However, the diameter of the boss is the same as that of the other end of the pin. It is a matter of course that the pin diameter of the boss front portion is smaller than the other pins so that the diameters of the pinholes provided in the socket can be kept the same.

On the other hand, the present invention is not limited to the above-described embodiment, it is possible to change the dimensions and shapes, the change of materials, etc., without departing from the scope of the technical idea of the present invention.

As described above, the present invention is to improve the structure of the socket for connecting the CRT to the imaging unit substrate, so that the locking device is provided inside the socket.

Accordingly, the present invention simplifies the assembly process of the CRT and the image part substrate tube in the image display device assembly line, and improves the working environment without using an adhesive harmful to the human body.

In addition, since the unlocking is simply performed by the operation of the unlocking means, separation and reassembly of the CRT and the image part substrate after the after-sale service can be performed more easily.

Claims (7)

An image display apparatus having an electron gun coupled to a rear of a CRT and an image part substrate having a socket having a pinhole into which a pin of the electron gun is inserted; A locking means installed inside the socket to lock at least one pin of the pin of the electron gun coupled to the socket to maintain a coupling state between the socket and the electron gun; And a lock release means installed on one side of the socket to release the locked state of the electron gun pin locked by the lock means. The method of claim 1, The locking means, A fixing plate having a curved surface fixed to one inner surface of the installation space inside the socket and having the same radius of curvature as the pin of the electron gun at the center of the surface; Locking device of the socket for the connection between the CRT and the image part substrate of the image display device, characterized in that consisting of an elastic plate for locking the pin together with the fixing plate when the electron gun pin is inserted. The method of claim 2, At the tip of the electron gun pin inserted into the lock hole formed by the curved surface of the fixing plate constituting the locking means and the recessed surface of the elastic plate, A boss having a larger diameter than other parts of the pin is provided, As the electron gun pin passes completely through the lock hole, the boss of the pin tip is fixed to the rear of the fixing plate and the elastic plate forming the lock hole to connect the CRT of the image display device to the image part substrate. Lock on the socket. The method of claim 2, The elastic plate, Before the insertion of the electron gun pin pin contact portion which is in contact with the fixed plate and the concave indentation surface of the same radius of curvature facing the curved surface in the center portion; Locking of the socket for connection between the CRT and the image part substrate of the image display device, characterized in that it is formed from the V-shaped elastic part extending from the pin crimping part and having elasticity due to the material properties and the geometry of the facet itself. Device. The method of claim 1, The unlocking means, A connection portion extending from the pin pressing portion of the fixing plate in a direction orthogonal to the longitudinal direction of the electron gun pin and connected to the operation knob to receive a manipulation force applied to the operation knob; Locking device of the socket for the connection between the CRT and the image part substrate of the image display device, characterized in that it is installed to be connected to the connecting portion of the fixing plate so as to space the distance between the elastic plate and the fixed plate. The method of claim 5, The bottom of the manipulation knob is provided with a guide groove formed to be inclined at a predetermined angle (θ) with respect to the movement direction of the manipulation knob, On the inner surface of one side of the guide groove is located so that the connection portion of the elastic plate For connecting the CRT and the image board of the image display device, wherein the operating force applied to the operation knob is transmitted to the elastic plate through a connection part in contact with an inner surface of the guide groove according to the operation direction of the operation knob. Lock on the socket. The method of claim 5, On the lower edge of the operation knob, The CRT of an image display device is provided with a flange for guiding forward and backward movement of the operation knob as well as preventing the operation knob assembled to move in one direction along the guide hole formed in the socket. Locking socket for connecting to the image board.