CN2178390Y

CN2178390Y - Non-warpping full frequency channel steering TV receiving antenna

Info

Publication number: CN2178390Y
Application number: CN 93246329
Authority: CN
Inventors: 陶少贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-02
Filing date: 1993-12-02
Publication date: 1994-09-28
Anticipated expiration: 2003-12-02

Abstract

The utility model provides a non-wrapping all-channel steering TV receiving antenna. An antenna part of the utility model has the advantages of small size, compact structure, simple and convenient installation, high receiving gains and strong directivity. A steering machine uses a high-performance anti-wrapping device, when the antenna rotates for any angle, feed lines can not wrap the steering machine. The mechanical structure of the steering machine is simplified, reliability is increased, and the utility model can be used for various indoor and outdoor remote-control steering TV receiving antennae.

Description

Non-warpping full frequency channel steering TV receiving antenna

The utility model relates to television receiving antenna, and particularly a kind of all-channel that does not have winding turns to television receiving antenna.

Turn to television receiving antenna to have bulky shortcoming in the prior art, and feeder can be wrapped on the steering box, influence the antenna normal direction of rotation.Though respective antenna has adopted anti-wrap device, its structure is reasonable inadequately, poor reliability, and useful life is short.

At above-mentioned not enough the utility model provide a kind of volume little, do not have to twine, the reliability height, the all-channel of long service life turns to television receiving antenna.

The utility model is taked following technical scheme for achieving the above object: antenna part is made up of girder 1, u section reflector rack 2, u section reflector cross bar 3, u section active dipole 4, u section director dipole 5 and v section active dipole 6 etc.The u section reflector of being made up of reflector rack and cross bar is between u section active dipole and v section active dipole, but the wherein active dipole or the director dipole of u section reflector double as v section.Purpose is in order to dwindle antenna volume.

Four sieve bars are arranged at the top of steering box 10, and they are respectively the distributing points 8,9 of u section and v section active dipole.This sieve bar is girder fixedly.TV signal is introduced in the steering box through u, v distributing point, and through the conversion of u/v balance, the u+v blender is connected with anti-wrap device, realizes that thus feeder does not have the purpose of winding.

The utility model has compared to existing technology: volume is little, feeder line does not have advantages such as winding and dependable performance.

Below in conjunction with example the utility model is further elaborated: Fig. 1 turns to television receiving antenna profile schematic diagram for all-channel, and antenna girder 1 is fixed by four sieve silks at steering box 10 tops among Fig. 1, and this sieve silk is the distributing point 8,9 of u, v frequency range.On girder, fixed u section reflector and comprised several types among Fig. 2 near the place of v section distributing point 9.Near the place of electricity point 8 u section active dipole 4 is housed near the u section on girder, u section active dipole comprises the several types among Fig. 3.Fixed several u section director dipoles at the girder front end, director dipole comprises the several types among Fig. 4.V section active dipole 6 is equipped with in the back of u section reflector on girder, and v section active dipole comprises the several types among Fig. 5, also comprises the c among Fig. 2, e, d, the several types of f.Extension coil 7 can be added on the v section oscillator.Also can add v section reflection oscillator behind the v section active dipole, be beneficial to improve the directional performance of v frequency range.

Among Fig. 2, a figure is that parabolic reflector, b figure are that plane reflector, c figure, d figure, e figure and f figure are the structure of several reflector double as v section active dipoles.

Fig. 3 is the profile schematic diagram of several u section active dipoles, and among Fig. 3, a figure is that v shape oscillator, b figure are that fan-shaped vibrator, c figure are that rabbit ear oscillator, d figure are flat shape two-wire oscillator.

Fig. 4 is the profile schematic diagram of several u section director dipoles, and among Fig. 4, a figure is that half-wave dipole, b figure are that v shape oscillator, c figure are that fan-shaped vibrator, d figure are that x shape oscillator, e figure are the parallel wire oscillator.

Fig. 5 is the profile schematic diagram of several v section active dipoles, and among Fig. 5, a figure is that half-wave dipole, b figure are that composite oscillator, c figure are that parallel wire oscillator, d figure are that logarithm period oscillator, e figure and f figure are the grid oscillator.

In steering box, TV signal is through u, v balance---uneven conversion 11,12, u+v blender 13, send into anti-wrap device moving contact 14, and by deciding touch base 15 full channel tv signal is exported to cable 16, referring to Fig. 6.Because moving contact adopts the structure of rotatable connection in deciding touch base, so feeder can not twine.

The anti-wrap device structure as shown in Figure 7, among Fig. 7: a figure is the different structures of two classes with b figure.Moving contact is made up of axial contact 17, insulating case 18 and side direction contact 19 among Fig. 7 a, and axially an end of contact is a cup head, and the other end is sieve bar, and the side direction contact is a conductive metal ring.Decide touch base and be made up of side direction elastic force contact 20, insulating sleeve 21, axial elasticity contact 22 and spring 23, the axial elasticity contact adds spring by sheet metal and constitutes, and the lateral elasticity contact is stuck in by three sheet metals in the groove of insulating sleeve and constitutes.

Moving contact is made up of axial contact 17, insulating case 18, lateral elasticity contact 19 among Fig. 7 b.Axially an end of contact is a cup head, and the other end is sieve bar, and three metal spring leafs of side direction elastic force contact are stuck in three grooves of insulating case.Decide touch base and be made up of axial elasticity contact 22 and side direction contact 20, the axial elasticity contact is a metal clips, and the side direction contact is a metal sleeve.

When moving contact inserts when decide to rotate in the touch base, their corresponding contact remains Elastic Contact, and that points out emphatically here is moving contact and decides touch base and concern reciprocity.

Claims

1, a kind of all-channel turns to television receiving antenna, form by girder 1, u section reflector 2, u section reflector cross bar 3, u section active dipole 4, u section director dipole 5, steering box 10 etc., it is characterized in that: u section reflector is between u section active dipole and v section active dipole, but wherein u section reflector double as v section active dipole or v section director dipole.

2, all-channel according to claim 1 turns to television receiving antenna, it is characterized in that: said u section active dipole comprises v shape oscillator, fan-shaped vibrator, rabbit ear oscillator and parallel wire oscillator etc.

3, all-channel according to claim 1 turns to television receiving antenna, it is characterized in that: said u section director dipole comprises half-wave dipole, v shape oscillator, fan-shaped vibrator, x shape oscillator and parallel wire oscillator etc.

4, all-channel according to claim 1 turns to television receiving antenna, it is characterized in that: said V section active dipole comprises half-wave dipole, composite oscillator, parallel wire oscillator, logarithm period oscillator and net grid oscillator etc.

5, a kind of all-channel turns to the anti-wrap device of television receiving antenna, by moving contact with decide touch base etc. and form, it is characterized in that: moving contact has axial contact and side direction contact or lateral elasticity contact, decide contact axial elasticity contact and lateral elasticity contact or side direction contact are arranged, when the moving contact insertion was decided to rotate in the touch base, corresponding contact remained Elastic Contact.