CN101166246A

CN101166246A - Tuner and thin TV with this tuner

Info

Publication number: CN101166246A
Application number: CNA2006101505121A
Authority: CN
Inventors: 金炳赫; 尹钟澈; 崔光周; 权时映; 蒋容周
Original assignee: Samsung Electro Mechanics Co Ltd
Current assignee: Samsung Electro Mechanics Co Ltd
Priority date: 2006-10-18
Filing date: 2006-10-18
Publication date: 2008-04-23

Abstract

The thin type TV set includes following parts: display panel for restricting the front portion of the thin type TV set; print circuit board (PCB) assembled on back surface of the display panel; surrounding PCB, rear cover possesses main body, and edges bent towards the display panel from the rear cover; being installed on PCB, the tuner is in use for converting RF signal to IF signal. The tuner includes following parts: chassis in use for accommodating PCB; passing through the front portion of chassis, antenna input end is protruded out of the chassis in direction perpendicular to main body of the rear cover, and the front portion of the chassis is parallel to the main body; lead wires is protruded out of the chassis in direction opposite to the direction of the protruding antenna input end.

Description

Tuner and slim TV with this tuner

Technical field

The present invention relates to a kind of can with the tuner of for example liquid crystal display of slim TV (LCD) TV and plasma display (PDP) TV associating, more particularly, the present invention relates to a kind of tuner that is used for slim TV, this tuner is designed to need not to use for example antenna support and connection device but be assembled in the little space that limits in the slim TV of sub-connector, thereby effectively is used to assemble the space and the saving production cost of electronic building brick.The invention still further relates to a kind of slim TV with this tuner.

Background technology

Usually, TV tuner is designed to vision signal and audio signal are separated from each other, and, be intermediate frequency (IF) signal and this IF signal of demodulation with the RF conversion of signals that receives according to vision signal and the audio signal that radio frequency (RF) the signal output that receives by antenna has separated.

This tuner comprises casing that limits outer body and the circuit board that is arranged in casing.Circuit board comprises: input filter, only allow the RF wave band by and filter other frequency; The signal tuning circuit; Amplifier is used for amplification input signal; Double-tuned circuit; Mixting circuit has the frequency mixer that produces the IF frequency.

Figure 1A shows the CRT TV that has assembled traditional TV tuner.

As shown in Figure 1A, CRT TV 110 provides the space of the abundance that is used to assemble TV tuner 100.

In traditional CRT TV 110, PCB 140 flatly is arranged in the CRT TV 110.In addition, as shown in Figure 1B, antenna input 122 is formed on a side of tuner casing 120, and terminal pin 130 is formed on the opposite side of tuner casing 120.Terminal pin 130 combines with horizontally disposed PCB in CRT TV 110.

Promptly, in order to make traditional TV tuner 100 and horizontally disposed PCB 140 combination easily, and antenna input 122 is extended horizontally to outside the bonnet of CRT TV 110, and antenna input 122 and terminal pin 130 must be arranged on the sidepiece of tuner casing 120.

As mentioned above, under the situation of CRT TV 110, effectively, antenna input 122 and terminal pin 130 are formed on the sidepiece of casing 120.That is, need on the front portion of casing 120 or rear portion, not form antenna input 122 and terminal pin 130.

In traditional CRT TV 110, the RF signal is input to antenna input 122 from exterior antenna lead-in wire 124, and the circuit conversion that the RF signal of this input is positioned in the tuner 100 is the IF signal.By terminal pin 130, the IF signal of this conversion is transferred to the PCB 140 that is arranged in CRT TV 110.

Simultaneously, in recent years, the slim TV of replaced C RT TV for example LCD TV and PDP TV because they have the advantage of effectively utilizing the space by commercialization widely.

This slim TV has lot of advantages in many aspects.Yet,, therefore have restriction aspect the various electronic building bricks that the composition slim TV effectively is installed because this slim TV has the thickness that reduces.

Fig. 2 shows traditional slim TV 200 of using the traditional tv tuner.

As shown in Figure 2, traditional slim TV 200 comprises the display pannel 210 of the front portion that limits slim TV 200.In order to reduce the thickness of slim TV 200, PCB 212 vertically is assemblied on the rear surface of display pannel 210.TV tuner 220 is assemblied on the rear surface of PCB 212, bonnet 214 is set protects PCB 212 and slim TV tuner 220.

Fig. 3 A and Fig. 3 B show traditional slim TV tuner 220 of describing in Fig. 2.

As shown in Fig. 3 A and Fig. 3 B, tuner 220 comprises having anterior 222 and from anterior 222 casings with the sidepiece 222a of right-angle bending.Antenna input 230 passes the part of the sidepiece 222a of casing and gives prominence to.Terminal pin 240 is outstanding from the rear portion of casing.

Because PCB 212 and the vertical abreast setting of display pannel 210, so tuner 220 is provided with abreast with PCB212, in this case, the terminal pin outstanding from the rear portion of casing combines with PCB 212.In addition, antenna input 230 also is provided with abreast with display pannel 210 and PCB 212.This structure is very effective to the gross thickness that reduces slim TV 200.

In addition, the antenna input 230 parallel with the PCB 212 of slim TV 200 and bonnet 214 are provided with and are projected into the outside of the following or side of bonnet 214 abreast.

Therefore, antenna insertion groove (not shown) need be set below bonnet 214 or on the back, thereby exterior antenna lead-in wire 260 can be connected by the antenna insertion groove with antenna input 230.Exterior antenna lead-in wire 260 and antenna input 230 are connected to exist for the workman by the antenna insertion groove and bother and lose time.In addition, because exterior antenna lead-in wire 260 directions that are connected with antenna input 230 are limited by the following or side of bonnet 214, so in slim TV 200, arrange to exist aspect a plurality of electronic building bricks and the tuner 220 and limit.

In order addressing the above problem, as shown in Fig. 3 A and Fig. 3 B, to use antenna support and connection device 270, thereby antenna input 230 is extended to outside the bonnet 214 of slim TV 200 with the direction perpendicular to the main body of bonnet 214 with formation.

The result, because by the antenna support and connection device 270 on the direction vertical with the main body of bonnet 214, antenna input 230 can come out from the bonnet 220 of slim TV, so the workman can be easily exterior antenna lead-in wire 260 is connected with antenna support and connection device 270.

The use of antenna support and connection device 270 can make the gross thickness of slim TV 200 reduce and reduce in the restriction of arranging aspect the various electronic building bricks.

Yet, owing to use additional L shaped antenna support and connection device 270 to cause the production cost of tuner 220 to increase.In addition, owing to need L shaped antenna support and connection device 270 is assembled on the antenna input 230, so the increase of the quantity of packaging technology, thus the productivity ratio deterioration.

In addition, L shaped antenna support and connection device 270 has taken the inner space of slim TV 200.This can influence the design of other electronic building brick and layout and have adverse influence in the thickness that reduces slim TV 200 and weight aspect reducing.

Summary of the invention

Therefore, because restriction of the prior art and shortcoming, so the invention provides the tuner of having avoided one or more problems substantially and slim TV with this tuner.

An object of the present invention is to provide a kind of slim TV tuner with improved casing, described casing is designed to be assembled in the relatively little inner space in the slim TV, thereby effectively utilizes the space.

Another object of the present invention provides a kind of slim TV tuner with improved casing, described casing is designed to expose the outer antenna input of bonnet that is exposed on slim TV, and do not use optional feature, thereby save manufacturing cost and boost productivity.

Another purpose of the present invention provides a kind of slim TV with this tuner.

Other advantage of the present invention, purpose and feature will partly be mentioned in the following description, and a part will become clear to those of ordinary skills according to following explanation, perhaps can know by practice of the present invention.The objectives and other advantages of the present invention can be by below description and claim and accompanying drawing in the structure specifically noted realize and obtain.

In order to realize these targets and other advantage, according to purpose of the present invention, as enforcement and broadly described here, slim TV in a kind of slim TV tuner is provided, being used for the RF conversion of signals is the IF signal, and described slim TV tuner comprises: casing is used for containment circuit board; Antenna input, the front portion of passing casing is projected into outside the casing, is transferred to described circuit board with the described RF signal that will import; Terminal pin is being projected into outside the described casing in the opposite direction with the outstanding side of described antenna input, and described terminal pin is electrically connected with described circuit board and exports described IF signal to described slim TV.

Preferably, described antenna input can be projected into outside the described casing on the direction vertical with described front portion.

Further preferably, described slim TV tuner can comprise that also being provided with described antenna input is assemblied in hole wherein and combines to cover the cover plate of described circuit board wherein with described casing.

More preferably, described casing can be designed to be equipped with other video and voice modulation end.

According to a further aspect in the invention, provide a kind of slim TV, described slim TV comprises: display pannel limits the front portion of described slim TV; Printed circuit board (PCB) (PCB) is assemblied on the rear surface of described display pannel; Bonnet has the main body that is used for surrounding described printed circuit board (PCB); Tuner is assemblied on the described printed circuit board (PCB), and to be the IF signal with the RF conversion of signals, wherein, described tuner comprises: casing is used for containment circuit board; Antenna input, the front portion of passing described casing on the direction vertical with the described main body of described bonnet is projected into outside the described casing, and the described protecgulum of described casing is parallel with the described main body of described bonnet; Terminal pin is being projected into outside the described casing in the opposite direction with the outstanding side of described antenna input.

Preferably, described casing forms box-shape, and the described anterior maximum surface that limits described box-shape of described casing.

Further preferably, the described antenna input groove that can pass on the described main body that is formed on described bonnet is projected into outside the described bonnet.

Further preferably, described casing can be designed to be equipped with other video and voice modulation end.

Description of drawings

Involved be used to provide further understanding of the present invention and be contained in this accompanying drawing that constitutes the application's a part show embodiments of the invention, and be used for explaining principle of the present invention with describing part.In the drawings:

Figure 1A is assemblied in the end view that the part of the conventional tuner on the cathode ray tube (CRT) TV is cut open;

Figure 1B is the end view of the tuner described in Figure 1A;

Fig. 2 is assemblied in the end view that the part of the conventional tuner on the slim TV is cut open;

Fig. 3 A and Fig. 3 B are used for being connected antenna support and connection device and the front view and the end view of the structure of traditional slim TV tuner of describing at Fig. 2;

Fig. 4 is the end view that employing is cut open according to the part of the slim TV of the slim TV tuner with improved casing of the embodiment of the invention;

Fig. 5 is the decomposition diagram according to the slim TV tuner with improved casing of the embodiment of the invention;

Fig. 6 A to Fig. 6 C is respectively front view, end view and the plane graph according to the external structure of the slim TV tuner with improved casing of the embodiment of the invention.

Embodiment

Now, will describe the preferred embodiments of the present invention in detail, the example of the preferred embodiments of the present invention shown in the drawings.

Fig. 4 shows the slim TV that has adopted according to the slim TV tuner of the embodiment of the invention.

Slim TV 10 comprises: display pannel 12, the front portion of qualification slim TV 10; PCB 14, are assemblied on the rear surface of display pannel 12; Bonnet 16 surrounds PCB 14.Bonnet 16 comprises main body and edges crooked to display pannel 12 from main body and that extend.

Slim TV 10 comprises that also being used for the RF conversion of signals is the tuner 1 of IF signal.

Slim TV tuner 1 is assemblied in the bonnet 16 of slim TV 10.Slim TV tuner 1 has antenna input 20.Antenna input 20 is projected into outside the bonnet 16 on the direction vertical with the main body of bonnet 16.

Fig. 5 shows in detail the slim TV tuner of describing in Fig. 4.

As shown in Figure 5, slim TV tuner 1 comprises the casing 32 that wherein is provided with circuit board 30.By forming casing 32 with reservation shape punching press steel plate.The steel plate that is stamped is bent into the box-shape in four directions subsequently, preferably is bent into the square of rule or the box-shape of rectangle.The circuit board 30 that forms circuit is arranged in the casing 32 of box-shape.

Circuit board 30 is formed by input filter, single-tuned circuit, amplifier, double-tuned circuit and mixting circuit usually, will be the IF signal from the RF conversion of signals of antenna input 20 transmission and the IF signal of conversion is transferred to terminal pin 50.

Casing 32 comprises towards the main body of bonnet 16 and limits the anterior of maximum surface and from the sidepiece of front curvature.Antenna input 20 is installed on the casing 32 by this way, that is, antenna input 20 can pass the front portion of casing 32 and give prominence to.That is, antenna input 20 passes towards the front portion of the main body of bonnet 16 and is projected into outside the casing 32.Being provided with the cover plate 35 that antenna input 20 can be assemblied in hole 35a wherein is combined on the front portion of casing 32.

That is, antenna input 20 with the anterior vertical direction of casing 32 on outstanding, to receive the RF signal and the RF signal to be transferred to the circuit of circuit board 30.

Cover plate 35 is set, is fixedly fitted among the 35a of hole by making antenna input 20, more firmly antenna input is fixed on the casing 32.In addition, cover plate 35 plays and prevents that foreign body from entering the effect of casing 32.

With reference to Fig. 4, Fig. 6 B and Fig. 6 C, to go up in the opposite direction with the outstanding side of antenna input 20, terminal pin 50 is projected into the outside of casing 32 from circuit board 30.Terminal pin 50 is connected with the PCB 14 of slim TV 10, so that the IF signal is outputed to PCB 14.

Terminal pin 50 by output by the IF output lead pin of the IF signal of RF conversion of signals, power supply is supplied to the power supply lead wire pin of circuit and the data I/O terminal pin that circuit is connected with PCB 14 is formed.

Therefore, insert terminal pin 50 in the position corresponding with PCB 14 in the slim TV 10.

Casing 32 can be designed to assemble other video and voice modulation end (not shown), with to slim TV 10 transmission of video and audio signal.

As implied above, when slim TV tuner 1 of the present invention was applied on the slim TV 10, the workman can easily be connected to antenna input 20 with exterior antenna lead-in wire 60.

That is, as shown in Figure 4, when slim TV tuner 1 of the present invention was assemblied in the bonnet 16 of slim TV 10, antenna input 20 was projected into outside the main body of bonnet 16 in vertical direction.

Is connected with in the reception RF signal outside antenna input 20 is projected into the main body of bonnet 16 in vertical direction and with exterior antenna lead-in wire 60, terminal pin 50 is electrically connected with the PCB 14 of slim TV 10.

According to slim TV tuner of the present invention, because antenna input 20 is projected into outside the main body of bonnet 16 in vertical direction, and need not to use any connector, so in the process of packaging technology, the workman can easily be connected to antenna input 20 with exterior antenna lead-in wire 60.

In addition, can be used in other electronic building brick of installation owing to be used for the space of the antenna support and connection device of prior art, so described space can be used effectively, be installed in the degree that freely designs of the electronic building brick in the slim TV 10 and effectively arrange described electronic building brick thereby improve.

According to the present invention, owing to the L shaped antenna support and connection device that does not need to use in the prior art, so slim TV tuner of the present invention can be assembled in the less relatively inner space in the slim TV, thereby effectively be used for the space of other electronic building brick.

In addition, because slim TV tuner of the present invention is with constructional simple design, so can save manufacturing cost and boost productivity by reducing built-up time.

Can do various modifications and distortion to the present invention to it will be apparent to one skilled in the art that.Therefore, as long as these modifications and distortion fall in the scope of claim and equivalent thereof, the invention is intended to cover these modifications of the present invention and distortion.

Claims

1. the slim TV tuner in the slim TV is used for radio frequency signals is converted to intermediate-freuqncy signal, and described slim TV tuner comprises:

Casing is used for containment circuit board;

Antenna input, the front portion of passing described casing is projected into outside the described casing, is transferred to described circuit board with the described radio frequency signals that will import;

Terminal pin is being projected into outside the described casing in the opposite direction with the outstanding side of described antenna input, and described terminal pin is electrically connected with described circuit board and exports described intermediate-freuqncy signal to described slim TV.

2. slim TV tuner as claimed in claim 1, wherein, described antenna input is projected into outside the described casing on the direction vertical with described front portion.

3. slim TV tuner as claimed in claim 1 comprises that also being provided with described antenna input is assemblied in hole wherein and combines with described casing to cover the cover plate of described circuit board wherein.

4. slim TV tuner as claimed in claim 1, wherein, described casing is designed to be equipped with other video and voice modulation end.

5. slim TV comprises:

Display pannel limits the front portion of described slim TV;

Printed circuit board (PCB) is assemblied on the rear surface of described display pannel;

Bonnet has the main body that is used for surrounding described printed circuit board (PCB);

Tuner is assemblied on the described printed circuit board (PCB), so that radio frequency signals is converted to intermediate-freuqncy signal,

Wherein, described tuner comprises:

Casing is used for containment circuit board;

Antenna input, the front portion of passing described casing on the direction vertical with the described main body of described bonnet is projected into outside the described casing, and the described protecgulum of described casing is parallel with the described main body of described bonnet;

Terminal pin is being projected into outside the described casing in the opposite direction with the outstanding side of described antenna input.

6. slim TV as claimed in claim 5, wherein, described casing forms box-shape, and the described anterior maximum surface that limits described box-shape of described casing.

7. slim TV as claimed in claim 5, wherein, the groove that described antenna input passes on the described main body that is formed on described bonnet is projected into outside the described bonnet.

8. slim TV as claimed in claim 5, wherein, described casing is designed to be equipped with other video and voice modulation end.