CN201226186Y - Structure for improving controlled angle of remote-control receiving terminal - Google Patents

Abstract

The utility model relates to a structure for improving a controlled angle of a remote control receiving end. The structure comprises a light pole, a receiver and a receiver bracket; the light pole is fixed on a chassis and aligns the receiver which is fixed on the receiver bracket; and the inner side surface of the receiver bracket is internally concave and forms one of an arc surface or a paraboloid. The structure improves a remote control receiving angle by improving the fixed bracket of the receiver and solves the problem that a single-side controlled angle is smaller which is caused by that the remote control receiving end is not at the middle position.

Description

A kind of structure of improving remote control receiving end controlled angle

[technical field]

The utility model relates to televisor, display etc. and uses infrared remote control reception, the structure of specifically a kind of televisor or display remote receiving end.

[background technology]

The receiver position of tradition remote-controlled television set is usually located at the below at screen level center, and this structure realizes left and right sides controlled angle 〉=30 ° of realizations easily.The angle of telepilot transmitter and screen center when controlled angle is normally tested specific range, this improvement by the leaded light rod structure is easy to reach the GB requirement, than being easier to realize receiving control.

But along with the appearance of some novel appearance televisors, the receiver position of these surface structures or at the screen left, or right-hand, or in the corner direction, all the controlled angle test result is impacted.The receiver position is at the screen level center position in this novel TV outward appearance, but at screen bottom right edge, at this moment left side controlled angle test result shows obviously less than normal when the screen level central lower.

Fig. 1 is the structural representation of receiver before improving and leaded light post, and among the figure, leaded light post 2 is fixed on the casing 1, and corresponding with receiver 4, and 4 of receivers are fixed on the receiver holder 3; With reference to Fig. 2, the infrared light after leaded light post refraction has considerable part to enter into outside the receiver effective range, can't be received device and effectively absorb, during in left side controlled angle 〉=30 °, the effective infrared light that enters receiver just still less, nature left side controlled angle diminishes.This type of receiver holder only plays fastening and orientation.

Common solution is to improve leaded light post receiving plane, to improve receiving angle; The circuit aspect can increase the power of remote control transmitter, or improves the sensitivity of infrared remote control receiver.But these two kinds of methods all have deficiency, and the former is unlimited in the televisor effect of screen level central party for receiver, and the latter has increased the cost of infrared remote control system to a certain extent, and for the ordinary consumption electron-like, this is also inapplicable.

[utility model content]

Just be based on above consideration, the utility model proposes a kind of structure of improving remote control receiving end controlled angle, this structure is by to receiver support bracket fastened improvement raising remote control receiving angle, to solve the one-sided controlled angle problem less than normal that the remote control receiving end does not cause in the centre position.

Provide a kind of structure of improving remote control receiving end controlled angle another order of the present utility model, this structure increases the telechirics receiving angle to the fixing improvement of receiver of remote-control sytem supporting structure, simple in structure being easy to realized, and this does not change existing leaded light rod structure and remote-control receiving circuit system, does not influence the cost of manufacture of TV.

Therefore, the utility model is achieved in that

A kind of structure of improving remote control receiving end controlled angle, this structure comprises leaded light post, receiver and receiver holder, the leaded light post is fixed on the casing, aim at receiver, receiver then is fixed on the receiver holder, it is characterized in that receiver holder medial surface indent, form arc surface or paraboloidal a kind of.

Described receiver holder medial surface, its shape indent, inside surface is bright and clean.Bright and clean inner concave can make the infrared light of incident at an angle after the refraction of leaded light post, finishes the birefringence of receiving end, can make infrared light enter effectively being subjected in the optical range of receiver to greatest extent, thereby improves remote control receiving end controlled angle.

Described receiver holder, its medial surface extends to receiver, and near the receiving end of receiver, according to different receiver shapes, can provide the distance between receiver holder medial end and receiver sensitization sphere, as smaller or equal to 0.5mm.Can have to greatest extent low the refraction, what make that infrared light enters receiver effectively is subjected to optical range.

The utility model is by the improvement to the receiver supporting structure, solve one-sided controlled angle problem less than normal under this structure outward appearance effectively, do not change the leaded light rod structure, do not improving the remote-control receiving circuit system, under the condition that does not increase corresponding parts, can effectively improve the remote control controlled angle, practical.

And above-mentioned improvement, it is simple in structure, is easy to realize, does not increase the cost of manufacture of existing televisor.

[description of drawings]

Fig. 1 is a receiver of remote-control sytem fixing rack structure synoptic diagram before improving,

Fig. 2 is a remote control receiving light path synoptic diagram before improving,

Fig. 3 is the structural representation that the utility model is implemented,

Fig. 4 is the remote control receiving light path synoptic diagram that the utility model is implemented.

Among the figure: 1 is casing, and 2 is the leaded light post, and 3 are receiver holder before improving, and 4 is receiver, and 5 is pcb board, and 6 for improving the back receiver holder.

[embodiment]

Describe the enforcement of this utility model in detail below in conjunction with accompanying drawing.

As shown in Figure 3, improve back receiver fixed support when keeping original function, the medial surface shape changes the arc surface or the parabola of indent into, and inside surface is bright and clean.Bright and clean inner concave can make the infrared light of incident at an angle after the refraction of leaded light post, finishes the birefringence of receiving end, can make infrared light enter effectively being subjected in the optical range of receiver to greatest extent, thereby improves remote control receiving end controlled angle.

Concave paraboloid can be a sphere in described, also can be cylinder.Inner surface is bright and clean can be to electroplate, and also can oil spout etc. improves the technology of birefringence.

As shown in Figure 4, improve after the infrared light after the refraction of leaded light post has considerable part to incide the fixedly inner surface of receiver holder, this part infrared light enters in the ruddiness receiver effective range after by the medial surface birefringence, thereby has improved the left direction controlled angle.

In the screen left corner, this utility model can improve the controlled angle of the receiving end of right flank for receiver.Principle is the same, is not giving unnecessary details.

Claims (4)

1, a kind of structure of improving remote control receiving end controlled angle, this structure comprises leaded light post, receiver and receiver holder, the leaded light post is fixed on the casing, aim at receiver, receiver then is fixed on the receiver holder, it is characterized in that receiver holder medial surface indent, form arc surface or paraboloidal a kind of.

2, improve the structure of remote control receiving end controlled angle as claim 1, it is characterized in that described receiver holder medial surface, its shape indent, inside surface is bright and clean.

3, improve the structure of remote control receiving end controlled angle as claim 1, it is characterized in that described receiver holder, its medial surface extends to receiver, and the receiving end of close receiver.

4, improve the structure of remote control receiving end controlled angle as claim 3, it is characterized in that the distance between receiver holder medial end and receiver sensitization sphere, smaller or equal to 0.5mm.

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