A kind of seal transformer
Technical field
The present invention relates to a kind of seal transformer.
Background technology
At present, transformator is typically all direct exposed setting, is the most not only easily accessible dust but also is easily corroded;Additionally, the electric jamming produced due to the alternating current of transformator, the most often transformator will not attach the communication apparatus, because some electric jamming that transformator produces can disturb some common antennas, so even the placement communication apparatus, its communication quality is the highest.But it is as the intelligent construction of following transformator, it is necessary to outdoor transformer needs more perfect communication function, therefore, installs communication antenna on the transformer and must possess preferable antenna performance.
Summary of the invention
It is an object of the invention to overcome disadvantages described above, it is provided that a kind of seal transformer.
For achieving the above object, the concrete scheme of the present invention is as follows: a kind of seal transformer, include cabinet, the transformation chamber for placing potential device it is provided with in described cabinet, described cabinet also includes to be located at the circuit above transformation chamber and shelves chamber, described circuit shelves first cavity that is also arranged above in chamber, described first cavity be also arranged above the second cavity;Described circuit is shelved intracavity and is provided with the telecommunication circuit for communication with the outside world, also includes the communication antenna being located in the second cavity, and described communication antenna is launched for telecommunication circuit and receives signal.
Wherein, described communication antenna includes circular pcb board, and described pcb board front is provided with the first oscillator arms of arc, also includes the second oscillator arms of the second arc, and the radius of described second oscillator arms is less than the radius of the first oscillator arms;The arc length of described first oscillator arms is more than the arc length of the second oscillator arms;The opening of described first oscillator arms is towards the second oscillator arms, and the opening of described second oscillator arms is towards the first oscillator arms;
The arched arm of described first oscillator arms has extended centrally out the first linking arm, described first linking arm free end is transversely provided with the first radiation arm, also include the second radiation arm that is parallel with the first radiation arm and that be shorter in length than the first radiation arm, also include the 3rd radiation arm that is parallel with the second radiation arm and that be shorter in length than the second radiation arm, also include the 4th radiation arm that is parallel with the 3rd radiation arm and that be shorter in length than the 3rd radiation arm;
The arched arm of described second oscillator arms has extended centrally out the second linking arm, described second linking arm free end is transversely provided with the 5th radiation arm, also include the 6th radiation arm that is parallel with the 5th radiation arm and that be shorter in length than the 5th radiation arm, also include the 7th radiation arm that is parallel with the 6th radiation arm and that be shorter in length than the 6th radiation arm, also include the 8th radiation arm that is parallel with the 7th radiation arm and that be shorter in length than the 7th radiation arm;
Also include arc and nock towards the 3rd oscillator arms of the first oscillator arms, described 3rd oscillator arms is connected by feeder pillar with the first oscillator arms;Described 3rd oscillator arms extends internally out the 4th trapezoidal oscillator arms, and the top margin of described 4th oscillator arms is provided with multiple semi-circular indentation;
Also include arc and nock towards the 5th oscillator arms of the first oscillator arms, described 5th oscillator arms is connected by feeder pillar with the second oscillator arms;Described 5th oscillator arms extends internally out the 6th trapezoidal oscillator arms, and the top margin of described 6th oscillator arms is provided with multiple semi-circular indentation;
The back side of described pcb board is provided with two power feed hole corresponding with the first oscillator arms and the second oscillator arms respectively.
Wherein, the arc length of described 3rd oscillator arms is identical with the arc length of the 5th oscillator arms;If the arc length of the 3rd oscillator arms is L3, the arc length of the first oscillator arms is L1, and the arc length of the second oscillator arms is L2, described L1=L2+0.25L3.
Wherein, the outside of described 4th radiation arm is zigzag, and the outside of described 8th radiation arm is zigzag.
Wherein, the parasitic oscillator sheet of a circle it is additionally provided with in described second oscillator arms.
Wherein, described first cavity is provided with a division board, and described communication antenna is located on division board, and the distance between division board and communication antenna is more than 2cm.
Wherein, described division board is a circular metal plate, and described division board is evenly arranged with multiple hexagon through hole.
Wherein, the periphery of described pcb board is provided with a circle shielding ring.
Wherein, also including one end and connect with transformation chamber, other end is connected to the cold air duct of air-cooler;Described air-cooler is for the cold wind lowered the temperature to the conveying of transformation chamber by cold air duct;
Wherein, also include intake stack, wind pipe and dirt filter device, one end of intake stack with one end of wind pipe respectively both sides with transformation chamber connect, the air inlet of described dirt filter device connects with the other end of intake stack and the other end of wind pipe respectively with gas outlet;
Wherein, the cavity inner surface in described transformation chamber is coated with metal screen layer;
The invention have the benefit that by arranging shell cavity so that in potential device can be located at, and from extraneous dust and rain erosion.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the present invention;
Fig. 2 is the top view of the communication antenna of the present invention;
Fig. 3 is the upward view of the communication antenna of the present invention;
Fig. 4 is the structural representation of the division board of the present invention;
Fig. 5 is the frequency range emulation testing figure that communication antenna and the separator of the present invention does not conforms to timing;
Fig. 6 is the communication antenna frequency range emulation testing figure with separator conjunction timing of the present invention;
Fig. 7 is the directional diagram of the communication antenna of the present invention;
Description of reference numerals in Fig. 1 to Fig. 7:
1-cabinet;2-transformation chamber;3-circuit shelves chamber;4-the second cavity;5-the first cavity;6-communication antenna;71-air-cooler;72-cold air duct;81-intake stack;82-wind pipe;83-dirt filter device;
90-PCB plate;95-division board;
911-the first oscillator arms;912-the second oscillator arms;913-the 3rd oscillator arms;914-the 4th oscillator arms;915-the 5th oscillator arms;916-the 6th oscillator arms;
921-the first linking arm;922-the second linking arm;
931-the first radiation arm;932-the second radiation arm;933-the 3rd radiation arm;934-the 4th radiation arm;935-the 5th radiation arm;936-the 6th radiation arm;937-the 7th radiation arm;938-the 8th radiation arm;
941-parasitism oscillator sheet;942-power feed hole;
951-through hole.
Detailed description of the invention
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not that the practical range of the present invention is confined to this.
If Fig. 1 is to shown in 7, a kind of seal transformer described in the present embodiment, include cabinet 1, the transformation chamber 2 for placing potential device it is provided with in described cabinet 1, described cabinet 1 also includes to be located at the circuit above transformation chamber 2 and shelves chamber 3, described circuit shelves first cavity 5 that is also arranged above in chamber 3, described first cavity 5 be also arranged above the second cavity 4;Described circuit is provided with the telecommunication circuit for communication with the outside world in shelving chamber 3, also include the communication antenna 6 being located in the second cavity 4, and described communication antenna 6 is launched for telecommunication circuit and receives signal;By arranging shell cavity so that in potential device can be located at, and from extraneous dust and rain erosion.Telecommunication circuit is prior art, is again not repeated.Owing to transformator electric field intensity is bigger, it is therefore desirable to communication antenna 6 possesses wider frequency range and preferable isolation, and directivity optimizes better and better.
A kind of seal transformer described in the present embodiment, described communication antenna 6 includes circular pcb board 90, described pcb board 90 front is provided with the first oscillator arms 911 of arc, also including the second oscillator arms 912 of the second arc, the radius of described second oscillator arms 912 is less than the radius of the first oscillator arms 911;The arc length of described first oscillator arms 911 is more than the arc length of the second oscillator arms 912;The opening of described first oscillator arms 911 is towards the second oscillator arms 912, and the opening of described second oscillator arms 912 is towards the first oscillator arms 911;
The arched arm of described first oscillator arms 911 has extended centrally out the first linking arm 921, described first linking arm 921 free end is transversely provided with the first radiation arm 931, also include the second radiation arm 932 that is parallel with the first radiation arm 931 and that be shorter in length than the first radiation arm 931, also include the 3rd radiation arm 933 that is parallel with the second radiation arm 932 and that be shorter in length than the second radiation arm 932, also include the 4th radiation arm 934 that is parallel with the 3rd radiation arm 933 and that be shorter in length than the 3rd radiation arm 933;
The arched arm of described second oscillator arms 912 has extended centrally out the second linking arm 922, described second linking arm 922 free end is transversely provided with the 5th radiation arm 935, also include the 6th radiation arm 936 that is parallel with the 5th radiation arm 935 and that be shorter in length than the 5th radiation arm 935, also include the 7th radiation arm 937 that is parallel with the 6th radiation arm 936 and that be shorter in length than the 6th radiation arm 936, also include the 8th radiation arm 938 that is parallel with the 7th radiation arm 937 and that be shorter in length than the 7th radiation arm 937;
Also include arc and nock towards the 3rd oscillator arms 913 of the first oscillator arms 911, described 3rd oscillator arms 913 is connected by feeder pillar with the first oscillator arms;Described 3rd oscillator arms 913 extends internally out the 4th trapezoidal oscillator arms 914, and the top margin of described 4th oscillator arms 914 is provided with multiple semi-circular indentation;
Also include arc and nock towards the 5th oscillator arms 915 of the first oscillator arms 911, described 5th oscillator arms 915 is connected by feeder pillar with the second oscillator arms;Described 5th oscillator arms 915 extends internally out the 6th trapezoidal oscillator arms 916, and the top margin of described 6th oscillator arms 916 is provided with multiple semi-circular indentation;
The back side of described pcb board 90 is provided with two power feed hole 942 corresponding with the first oscillator arms 911 and the second oscillator arms 912 respectively.
Designed by the microstrip circuit structure not less than 550 times, and by being not less than under 500 l-G simulation tests and parameter adjustment, finally determine above-mentioned antenna structure and matched division board 95 structure, this antenna possesses wider frequency range and preferable isolation and directivity and gain performance with division board 95 when coordinating, comply fully with use requirement, improve its communication performance.
A kind of high voltage generating station detection device described in the present embodiment, described first cavity 5 is provided with a division board 95, and described communication antenna 6 is located on division board 95, and the distance between division board 95 and communication antenna 6 is more than 2cm.A kind of high voltage generating station detection device described in the present embodiment, described division board 95 is a circular metal plate, and described division board 95 is evenly arranged with multiple hexagon through hole 951.Especially when removing this structural insulated panel 95 or placing common metal division board 95, such as Fig. 5, this beamwidth of antenna available frequency range is still up to 1.7GHz to 2.65GHz;Substantially meeting the requirement of communications band, its gain is the highest, and in frequency band, average gain is more than 8.952dBi;Meet actually used needs.The design of this shape division board 95 is also to be drawn by emulation and continuous EXPERIMENTAL DESIGN, wherein, screw stereo antenna is included when this division board 95 being placed other prior art antennas and coordinating, its matching is the highest, and isolation performance strengthens inconspicuous, when testing ordinary antennas, this division board 95 in cooperation, average gain increases 0.01-0.15dBi or does not increases, and isolation performance is constant, and frequency range is without changing.And the emulation before reality test with test is appreciated that, test when the communication antenna 6 in this programme coordinates with the division board 95 of this programme, the bandwidth of communication antenna 6 of this programme, isolation, gain aspect all exceed Antenna Design when being not added with division board 95, the simulation value such as Fig. 6 after wherein coordinating.This integrated antenna system bandwidth available frequency range has reached 1.6GHz to 2.85GHz;Its gain the most substantially increases, and in frequency band, average gain is more than 9.4dBi, compares rising about 0.3dBi;If additionally isolation in its isolation figure frequency band, isolation performance preferably, such as Fig. 6, can be seen that in S3 isolation is more than 25.5dB in frequency range.Its directivity, as described in Figure 7, it is omni-directional antenna.
Embodiment 2.
A kind of seal transformer described in the present embodiment, the arc length of described 3rd oscillator arms 913 is identical with the arc length of the 5th oscillator arms 915;If the arc length of the 3rd oscillator arms 913 is, the arc length of the first oscillator arms 911 is L1, and the arc length of the second oscillator arms 912912 is L2, described L1=L2+0.25L3.After arranging above-mentioned parameter restriction, being found by great many of experiments and emulation, its gain is more stable, and isolation is also maintained at higher level.Above-mentioned parameter draws in constantly test and adjustment, and it is the most stable design parameter optimal with performance, and concrete actual test is tied HFSS15 computed in software and drawn, this total system beamwidth of antenna available frequency range is at 1.6GHz to 2.8GHz internal frequency modulation;In frequency band, average gain is more than 9.35dBi, and impedance reduces;In frequency range, isolation is more than 26dB;Find in reality is tested, the change of external environment, as temperature, magnetic field impact change within the specific limits, such as temperature amplitude of variation about 10 degree, use above-mentioned parameter and during special value, very by force, frequency range conservation degree is preferable for its stability.
A kind of seal transformer described in the present embodiment, the outside of described 4th radiation arm 934 is zigzag, and the outside of described 8th radiation arm 938 is zigzag;Sawtooth is set and can be effectively increased isolation.
A kind of seal transformer described in the present embodiment, is additionally provided with the parasitic oscillator sheet 941 of a circle in described second oscillator arms 912, have substantially help to gain improving.
A kind of seal transformer described in the present embodiment, also includes one end and connects with transformation chamber 2, and other end is connected to the cold air duct 72 of air-cooler 71;Described air-cooler 71 is for the cold wind lowered the temperature to transformation chamber 2 conveying by cold air duct 72;Place potential device temperature too high.
A kind of seal transformer described in the present embodiment, also include intake stack 81, wind pipe 82 and dirt filter device 83, both sides with transformation chamber 2 respectively, one end of one end of intake stack 81 and wind pipe 82 connect, and the air inlet of described dirt filter device 83 connects with the other end of intake stack 81 and the other end of wind pipe 82 respectively with gas outlet;Dirt filter is prior art, again repeats no more, general containing air pump, filter screen etc. in dirt filter device 83.
A kind of seal transformer described in the present embodiment, the cavity inner surface in described transformation chamber 2 is coated with metal screen layer;For improving electromagnetic shielding, reduce the impact on communication antenna 6 as far as possible.
The above is only a preferred embodiment of the present invention, therefore all equivalence changes done according to structure, feature and the principle described in present patent application scope or modification, it is included in the protection domain of present patent application.