CN209104332U - New-type radio-frequency switchboard - Google Patents

Abstract

The utility model provides New-type radio-frequency switchboard, including mounting rack, power divider and U_link, power divider is connected in mounting rack top side, it is connected in the mounting rack top other side to three horizontal intervals U_link, wherein, the short and small rheostat that power divider is mixed by two details, 1/16th wavelength and 1/8th central wavelength of a detail and the U_link positioned at middle part are formed.The utility model has the advantages that simplify number of components, simplifies manufacturing process, reduces production cost, reduces small product size and improve product appearance.

Description

New-type radio-frequency switchboard

Technical field

The utility model relates to radio broadcasting communication equipment fields, specifically, being related to New-type radio-frequency switchboard.

Background technique

In order to reduce off-air time, often transmitting station standing-meeting backups equipment when emitting equipment and breaking down；Antenna feeder System is in severe outwork environment, and working condition is influenced by weather condition, it is easier to be occurred because intaking, sucking humidity Air causes the antenna-reflected transmitter that becomes larger cannot be started up；Thus broadcasting station is that existing antenna-feeder system is made more safely may be used now It leans on, using double-feed antenna system；Double-feed antenna system is i.e. by the equal main feeder cable of two electrical length respectively to the upper of antenna system Half pair of aerial array and lower half pay aerial array feed；When half pair of aerial array therein being made to break down in this way, another half pair Aerial array remains to the purpose worked normally, ensures and broadcasts safety.

RF switch plate is set between transmitter output end and antenna and load, for carrying out power distribution or complete At a kind of device of masterslave switchover, its main function is first is that feed each portion's antenna in antenna array, and feed system Independently of each other, when feed system breaks down all the way, other feed systems normal work will not be influenced；Another effect is can be with Realize switching for standby machine；RF switch plate is essential equipment in radio and television transmitting antenna transmission system.

Existing RF switch plate (referring to Figure 1, Fig. 2) is using 2 previous details, the variable resistance of 1/4th central wavelengths Device design, rheostatic length is too long, and power divider part connects feedback pipe excessively complicated and time consuming in use, elbow, company when installation The man power and materials such as connected components, and switchboard overall volume is excessively huge, makes troubles to transport and installation.

Utility model content

In place of solving above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide New-type radio-frequency switches Plate, to overcome defect in the prior art.

To achieve the goals above, the utility model provides New-type radio-frequency switchboard, including mounting rack, power divider And U_link, power divider are connected in the inside of mounting rack, three U_link horizontal homogeneous compartment of terrain are connected in mounting rack Outside, while a part of the intermediate U_link being located in three U_link as power divider；Wherein, power divider The short and small rheostat that be mixed by two details, 1/16th wavelength and 1/8th central wavelength of a detail and it is located at intermediate U_ Link composition.

By using above-mentioned technical proposal, power is made into using short power divider technology and by one U-link in centre One part of distributor makes the length of power divider reduce 1000mm or so, and when installation saves 3,4-1/2 elbow, by It with the connection type of switch panel is horizontal straight cutting after power divider improvement, so that the RF switch plate be made to use meeting Under the conditions of reached saving human and material resources cost, and reduce overall structure size make transport and install convenience significantly It improves.

As the further explanation to New-type radio-frequency switchboard described in the utility model, it is preferable that U_link length is 250mm。

By using above-mentioned technical proposal, reduces U_link occupied space to the full extent and be able to maintain the normal work of U_link Make.

As the further explanation to New-type radio-frequency switchboard described in the utility model, it is preferable that mounting rack is by industry Frame aluminum profile is made.

By using above-mentioned technical proposal, make the installation fitting uniform specification of mounting rack, can adjust at any time in any combination Mounting structure and fit dimension.

As the further explanation to New-type radio-frequency switchboard described in the utility model, it is preferable that under power divider It is fixed with support frame on the mounting rack of side, supports power divider with fixed.

By using above-mentioned technical proposal, make power divider stable connection, avoids the occurrence of wobble effects normal work.

The utility model has the following beneficial effects:

The utility model makes by changing power divider length, and using U_link as a part of power divider The connection type of RF switch plate power divider is transformed to horizontal straight cutting by complications connection and connects, to make the RF switch plate Saving human and material resources cost is reached in the case where meeting use condition, and reduce overall structure size to make to transport and install just Benefit increases substantially.

Detailed description of the invention

Fig. 1 is the rearview of RF switch plate in the prior art；

Fig. 2 is the front view of RF switch plate in the prior art；

Fig. 3 is the rearview of the RF switch plate of the utility model；

Fig. 4 is the front view of the RF switch plate of the utility model.

Description of symbols:

1, mounting rack；2, power divider；3,U_link；4, support frame.

Specific embodiment

In order to further appreciate that the structure, feature and other purposes of the utility model, now in conjunction with appended preferable implementation Example is accompanied by attached drawing, and detailed description are as follows, this attached drawing embodiment described is merely to illustrate the technical solution of the utility model, and Non-limiting the utility model.

The New-type radio-frequency switchboard of the utility model, in conjunction with Fig. 3, Fig. 4, including mounting rack 1, power divider 2 and U_ Link3, mounting rack 1 be Industrial Framework aluminium composition square set, have installation fitting uniform specification, can in any combination, with When adjustment mounting structure and the advantages of fit dimension.Power divider 2 is connected in 1 top side of mounting rack；U_link3 is U-shaped Tubulose and length are 250mm, and U_link3 is the device for carrying out signal and power transmission, have switch function to change letter Number and the transmission direction of power reduce U_link3 to the full extent by the way that U_link3 length is reduced to 250mm by 300mm Occupied space and be able to maintain U_link3 normal work；It is another to be connected in 1 top of mounting rack to three horizontal intervals U_link3 Side.

In conjunction with Fig. 3, Fig. 4, power divider 2 is by 1/8th central wavelength of two details, 1/16th wavelength and a detail The short and small rheostat that is mixed into and intermediate U_link positioned at middle part are formed, and rheostat is circular tube shaped, and 1/8th centers The rheostat outer diameter of wavelength is greater than the rheostat of 1/16th wavelength；The rheostat of two details, 1/16th wavelength is solid respectively The rheostat two sides of 1/8th central wavelengths are connected in, rheostat is mutually connected with U_link3 respectively.

In conjunction with Fig. 3, Fig. 4, the one of power divider is made into using short power divider technology and by one U-link in centre A part, and exist no longer in the form of independent U_link, the usage amount of engineering part is shiftingly eliminated, power divider 2 is made Length reduce 1000mm or so, when installation, saves 3,4-1/2 elbow, after being improved due to power divider 2 with switch panel Connection type is horizontal straight cutting, does not have to tortuous connection, therefore reduce the usage quantity of lock pin and anchor ear, eliminates power distribution Device carries out the engineerings parts such as the elbow used when angular transformation, so that the RF switch plate be made to have reached section in the case where meeting use condition About human and material resources cost, and reducing overall structure size makes transport and installation convenience increase substantially and in network Under the test of analyzer, the whole and upper and lower each half system standing-wave ratio of RF switch plate is all 1.1 hereinafter, properties of product satisfaction is penetrated Frequency demand.

In conjunction with Fig. 3, Fig. 4, support frame 4 is fixed on the mounting rack 1 of 2 lower section of power divider, support frame 4 is cyclic annular knot Structure and length are less than the length of power divider 2, and support frame 4 wraps up power divider 2, makes 2 length direction water of power divider It is flat, guarantee 2 stable connection of power divider, avoids the occurrence of wobble effects normal work.

It is to be understood that above-mentioned utility model content and specific embodiment are intended to prove the provided skill of the utility model The practical application of art scheme should not be construed as the restriction to scope of protection of the utility model.Those skilled in the art are practical at this In novel spirit and principle, when can various modifications may be made, equivalent replacement or improvement.The protection scope of the utility model is with appended power Subject to sharp claim.

Claims (4)

1. New-type radio-frequency switchboard, including mounting rack (1), power divider (2) and U_link (3), power divider (2) is connected In the inside of mounting rack (1), three U_link (3) horizontal homogeneous compartment of terrain are connected in the outside of mounting rack (1), while being located at three The a part of intermediate U_link as power divider (2) in a U_link (3)；Wherein, power divider (2) is by two details The short and small rheostat and be located at intermediate U_link composition that 1/16 wavelength and 1/8th central wavelength of a detail are mixed into.

2. New-type radio-frequency switchboard according to claim 1, which is characterized in that U_link (3) length is 250mm.

3. New-type radio-frequency switchboard according to claim 2, which is characterized in that mounting rack (1) is by Industrial Framework aluminum profile It is made.

4. New-type radio-frequency switchboard according to claim 3, which is characterized in that the mounting rack below power divider (2) (1) it is fixed with support frame (4) on, supports power divider (2) with fixed.