CN1268033C - Feed horn structure and its manufacturing method, frequency transformer and satellite communication receiving antenna - Google Patents
Feed horn structure and its manufacturing method, frequency transformer and satellite communication receiving antenna Download PDFInfo
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- CN1268033C CN1268033C CN 02159390 CN02159390A CN1268033C CN 1268033 C CN1268033 C CN 1268033C CN 02159390 CN02159390 CN 02159390 CN 02159390 A CN02159390 A CN 02159390A CN 1268033 C CN1268033 C CN 1268033C
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- feed horn
- structures
- cap
- loudspeaker cap
- described feed
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Abstract
A feed horn structure in which a feed horn and a horn cap can be combined without generating whitening, crack and the like, a manufacturing method thereof, a converter having that feed horn structure, and a satellite communication receiving antenna can be obtained. The feed horn structure of a satellite communication receiving converter includes a cylindrical feed horn (5) receiving a radio wave from an antenna portion and guiding the radio wave, and a horn cap (6) fixed to the feed horn so as to surround one end of the feed horn at antenna side. The feed horn and the horn cap are integrated by integral molding.
Description
Technical field
The present invention relates to be used to receive the feed horn structures and the manufacture method thereof of satellite communication (specifically, satellite broadcasting), the frequency converter that has feed horn structures and satellite communication reception antenna.
Background technology
Figure 11 is the stereogram of satellite broadcasting receiving antenna., enter feed horn 101 and be directed in the reflection of parabolic antenna 150 places from the radio wave of satellite.The radio wave that is directed in this wise (for example becomes TV signal or audio signal by frequency converter 140 frequency conversions that are connected on the feed horn 101, Japanese patent application publication No. No.7-38321, Japanese patent application publication No. No.9-46102, Japanese Utility Model publication number No.6-81120).
Figure 12 is the front view that has the feed horn structures of loudspeaker cap in traditional LNB (low noise block) low-converter, wherein shows their vertical cross-section.Figure 13 is the above feed horn structures sectional view along the XIII-XIII line of Figure 12.Shown in Figure 12 and 13, traditionally, feed horn 101 and loudspeaker cap 102 are removable mutually, and form feed horn structures when combining.In these feed horn structures unit, the loudspeaker cap must with the radio wave of unattenuated incident, be that " transparent " material is made for radio wave, that is,, make with non electrically conductive material as minimum requirements.As for feed horn, because it is used as waveguide, its inwall must be made with conductor at least.For this reason, these two parts are to make dividually as the parts that separate traditionally, combine when number of assembling steps.When number of assembling steps, a plurality of latch closures 103 that are provided on the loudspeaker cap are combined together with feed horn 101, thereby they are combined.
According to above combined method, cooperate the equilibrium of forces may be destroyed, cause near the latch closure of loudspeaker cap the albefaction (whitening) or the generation of fracture.In addition, owing to use O shape ring 104 to keep air-tightness, cost also increases.
So, need a kind ofly to make up feed horn and loudspeaker cap and need not to have such as feed horn structures above-mentioned, that can produce the such structure of latch closure that big stress concentrates.
Summary of the invention
The purpose of this invention is to provide a kind of feed horn structures, wherein can combine feed horn and loudspeaker cap and do not produce albefaction, crack or the like; The manufacture method of this feed horn structures, the frequency converter with this feed horn structures and satellite communication reception antenna also are provided.
The feed horn structures that receives frequency converter according to satellite communication of the present invention comprises: the cylinder feed horn, and it is used to receive radio wave and guiding radio wave from antenna part; And be fixed on the feed horn so that surround the loudspeaker cap of feed horn at a port of antenna one side.Feed horn and loudspeaker cap are integrated in together by whole die casting.
By this structure,, no longer need to be used for fixing the latch closure of loudspeaker cap, and prevent generation such as the trouble of albefaction or fracture because feed horn and loudspeaker cap are integrated in together by whole die casting.In addition, owing to obtain air-tightness by whole die casting, O shape ring can be excluded, so cost reduces.
According to feed horn structures of the present invention, feed horn can utilize blow moulding (blowmolding) integrally to be moulded into the loudspeaker cap of resin material.
By this structure, feed horn and loudspeaker cap can easily integrate, to keep air-tightness.
According to feed horn structures of the present invention, feed horn and loudspeaker cap can be by their recessed portion and working in coordination of projection and by jam-pack, to prevent that the loudspeaker cap is with respect to the feed horn displacement.
By this structure, feed horn and loudspeaker cap can prevent displacement by simple structure, swing offset particularly, and they can be integrated in together.
According to feed horn structures of the present invention, feed horn can be the feed horn of die casting.
By this structure, feed horn can be made with low cost with aluminium etc.And then, owing to aluminium can be extended well, so can easily whole die casting feed horn structures.
According to feed horn structures of the present invention, feed horn can be made with waterproof resin, has plating layer on its inner surface.
By this structure, can obtain in light weight and feed horn structures waterproof.At least within it the surface provides with plating layer, and randomly, plating layer can be provided on its whole surface.
According to feed horn structures of the present invention, feed horn can be made with the general fat that has plating layer.
By this structure, can obtain cost economy and lightweight feed horn structures.Similarly, must provide on the surface at least within it, and randomly, plating layer can be provided on its whole surface with plating layer.
According to feed horn structures of the present invention, feed horn can be made into by thin-sheet metal processing.
By this structure, aluminium sheet or steel plate can be embodied as this economy and effective the manufacturing by thin-sheet metal processing.
Receiving frequency converter according to satellite transmits of the present invention comprises: the cylinder feed horn, and it is used to receive radio wave and guiding radio wave from antenna part; And be fixed on the feed horn so that surround the loudspeaker cap of feed horn at a port of antenna one side.Feed horn and loudspeaker cap are integrated in together by whole die casting.
By this structure, can obtain not having the frequency converter of the cost economy of defective effectively.
Satellite communication reception antenna of the present invention comprises antenna part and frequency converter.
Frequency converter comprises: the cylinder feed horn, and it is used to receive radio wave and guiding radio wave from antenna part; And be fixed on the feed horn so that surround the loudspeaker cap of feed horn at a port of antenna one side.Feed horn and loudspeaker cap are integrated in together by whole die casting.
By this structure, can obtain the satellite communication reception antenna of flawless cost economy effectively.
The method that receives the feed horn structures of frequency converter according to manufacturing satellite communication of the present invention comprises: the cylinder feed horn is installed to step on the blow molding die (blow molder); Parison as the loudspeaker cap is installed on the feed horn so that surround a port of loudspeaker and compress the step of parison with blow molding die (blowing mold); And from another port of feed horn to the parison compressed-air blows, so that parison is molded as the shape consistent with blow molding die.
By this structure, wherein feed horn and loudspeaker cap can be made effectively and at low cost by feed horn structures closely fastened to each other, do not concentrate and do not produce stress.
When reading following detailed description of the invention in conjunction with the accompanying drawings, can more understand above-mentioned purpose, characteristic, aspect and advantage with other of the present invention.
Description of drawings
Fig. 1 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the first embodiment of the present invention;
Fig. 2 is the sectional view that shows feed horn in a step of the manufacture method of the feed horn structures of Fig. 1, wherein the feed horn utilization be installed to the molding on the port of feed horn resin material parison 26 and be installed on the blow molding die;
Fig. 3 is the sectional view that shows feed horn in the step in succession of the step of Fig. 2, and wherein parison is compacted with blow molding die, and compressed air is blown into, and makes the loudspeaker cap become and the corresponding to shape of the inner surface of blow molding die.
Fig. 4 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the second embodiment of the present invention;
Fig. 5 be according to the feed horn structures of the second embodiment of the present invention, along the horizontal sectional view of the V-V line of Fig. 4;
Fig. 6 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the change example of the second embodiment of the present invention;
Fig. 7 be according to the second embodiment of the present invention the change example feed horn structures, along the horizontal sectional view of the VII-VII line of Fig. 6;
Fig. 8 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the third embodiment of the present invention;
Fig. 9 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the change example of the third embodiment of the present invention;
Figure 10 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the fourth embodiment of the present invention;
Figure 11 is the stereogram of the structure of common satellite broadcasting receiving antenna;
Figure 12 is the front view that shows the vertical cross-section of traditional feed horn structures; And
Figure 13 be traditional feed horn structures, along the horizontal sectional view of the XIII-XIII line of Figure 12.
Embodiment
Embodiments of the invention are described below with reference to accompanying drawings.
(first embodiment)
Fig. 1 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the first embodiment of the present invention.The feed horn 5 of loudspeaker cap 6 and die casting is integrated in together by whole die casting.Therefore, need in manufacturing step, not adopt latch closure that the loudspeaker cap is installed on the feed horn, so, albefaction, fracture or the like do not produced.Therefore, the product of manufacturing is modified, and manufacturing cost is lowered.And, be used to keep the O shape ring of bubble-tight costliness to be excluded, therefore can reach cost and reduce.
Then, will the manufacture method of feed horn structures shown in Figure 1 be described.At first, as shown in Figure 2, feed horn 5 is installed on blow molding die 22 and 23.Then, the parison 26 of the resin material of mold pressing is installed to a port of feed horn, and compresses with blow molding die 21.After this, as shown in Figure 3, compressed air is blown into, thereby loudspeaker cap 6 is made and the corresponding to shape of the inner surface of blow molding die 21.By above manufacturing step, feed horn 5 and loudspeaker cap 6 quilts are integrated effectively, and do not produce albefaction, fracture or the like.
(second embodiment)
Fig. 4 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the second embodiment of the present invention.Fig. 5 be according to the feed horn structures of the second embodiment of the present invention, along the horizontal sectional view of the V-V line of Fig. 4.In above feed horn structures, in order to prevent the swing offset of loudspeaker cap 6, on feed horn 5, provide a projection 7, and a recessed portion is provided on loudspeaker cap 6, so that match with projection with respect to feed horn 5.
Fig. 6 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the change example of the second embodiment of the present invention.Fig. 7 be according to the second embodiment of the present invention the change example feed horn structures, along the horizontal sectional view of the VII-VII line of Fig. 6.In this feed horn structures, different with the feed horn structures of Figure 4 and 5, a recessed portion 8 is provided on feed horn, and a projection is provided on the loudspeaker cap, match with this recessed portion.
More than, by the projection and the recessed portion of working in coordination is provided on feed horn and loudspeaker cap, can obtaining wherein with low cost, the swing offset of loudspeaker cap is prevented from and the maintained feed horn structures of air-tightness.
(the 3rd embodiment)
Fig. 8 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the third embodiment of the present invention.The feed horn structures of the 3rd embodiment is characterised in that it comprises feed horn 5, and The latter waterproof resin 9 is molded into the feed horn shape and provides with plating layer 10 on the surface within it and is made into.By above this feed horn, feed horn structures can being integrated, and its weight also can be reduced.
Fig. 9 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the change example of the third embodiment of the present invention.In the change example of the 3rd embodiment, the resin that feed horn 5 usefulness are general is made the feed horn shape and its whole covering is made into plating layer 12.Loudspeaker cap 13 be formed cover feed horn around.Change example by shown in Figure 9 can provide the feed horn structures compared with the lower cost of the feed horn structures of Fig. 8, thereby frequency converter is provided.
(the 4th embodiment)
Figure 10 is the front view of demonstration according to the vertical cross-section of the feed horn structures of the fourth embodiment of the present invention.Present embodiment comprises that carrying out the thin-sheet metal with aluminium sheet or steel plate or the like processes the feed horn 14 that obtains.By this feed horn 14 of die casting integrally and loudspeaker cap 15, feed horn structures can easily form, and LNB frequency converter cheaply can be provided.
Though the present invention is described in detail and shows, can see that obviously it is just as an example with illustrative, rather than in order to limit, the spirit and scope of the present invention are only limited by appended claims.
Claims (10)
1. a satellite communication receives the feed horn structures of frequency converter, comprising:
Feed horn is used to receive radio wave and guiding radio wave from antenna part; And
The loudspeaker cap is fixed on the described feed horn, so that surround the port of described feed horn in antenna one side; Wherein
Described feed horn and described loudspeaker cap are integrated by inseparable turning up the soil by whole die casting.
2. according to the feed horn structures of claim 1, wherein
Described feed horn utilizes the described loudspeaker cap of blow moulding and resin material integrally by die casting.
3. according to the feed horn structures of claim 1, wherein
Described feed horn and described loudspeaker cap can be worked in coordination and by jam-pack, to prevent that described loudspeaker cap is with respect to described feed horn displacement by their recessed portion and projection.
4. according to the feed horn structures of claim 1, wherein
Described feed horn is the feed horn of die casting.
5. according to the feed horn structures of claim 1, wherein
Described feed horn is made with waterproof resin, has plating layer on its inner surface.
6. according to the feed horn structures of claim 1, wherein
Described feed horn is made with resins for universal use, has plating layer on its whole surface.
7. according to the feed horn structures of claim 1, wherein
Described feed horn is the feed horn of being processed into by the thin-sheet metal.
8. a satellite transmits receives frequency converter, comprising:
Cylinder feed horn (5) is used to receive radio wave and guiding radio wave from antenna part; And
Loudspeaker cap (6) is fixed on the described feed horn, so that surround the port of described feed horn in antenna one side; Wherein
Described feed horn and described loudspeaker cap are integrated by inseparable turning up the soil by whole die casting.
9. satellite communication reception antenna comprises:
Antenna part; And
Frequency converter; Wherein
Described frequency converter comprises:
Cylinder feed horn (5) is used to receive radio wave and guiding radio wave from described antenna part; And
Loudspeaker cap (6) is fixed on the described feed horn, so that surround the port of described feed horn in antenna one side; Wherein
Described feed horn and described loudspeaker cap are integrated by inseparable turning up the soil by whole die casting.
10. make the method that satellite communication receives the feed horn structures of frequency converter for one kind, comprising:
The cylinder feed horn is installed to the step of (22,23) on the blow molding die;
Parison (26) as the loudspeaker cap is installed on the described feed horn so that surround a port of described loudspeaker (5) and compress the step of described parison with blow molding die (21); And
From another port of described feed horn to described parison compressed-air blows so that described parison is molded as the step of the shape consistent with described blow molding die.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001125171 | 2001-04-24 | ||
| JP2001349508A JP2003014178A (en) | 2001-04-24 | 2001-11-15 | Displacement absorbing piping structure |
| JP394508/2001 | 2001-12-26 | ||
| JP349508/2001 | 2001-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1430309A CN1430309A (en) | 2003-07-16 |
| CN1268033C true CN1268033C (en) | 2006-08-02 |
Family
ID=26614049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02159390 Expired - Fee Related CN1268033C (en) | 2001-04-24 | 2002-12-26 | Feed horn structure and its manufacturing method, frequency transformer and satellite communication receiving antenna |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003014178A (en) |
| CN (1) | CN1268033C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752804A (en) * | 2013-12-31 | 2015-07-01 | 启碁科技股份有限公司 | Water-proof component |
| CN105896089B (en) * | 2015-01-23 | 2019-12-10 | 北京空间飞行器总体设计部 | Integrated circularly polarized antenna |
-
2001
- 2001-11-15 JP JP2001349508A patent/JP2003014178A/en active Pending
-
2002
- 2002-12-26 CN CN 02159390 patent/CN1268033C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003014178A (en) | 2003-01-15 |
| CN1430309A (en) | 2003-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CI01 | Correction of invention patent gazette |
Correction item: Priority number Correct: 394508/2001 False: 349508/2001 Number: 29 Page: 167 Volume: 19 |
|
| CI02 | Correction of invention patent application |
Correction item: Priority number Correct: 394508/2001 False: 349508/2001 Number: 29 Page: The title page Volume: 19 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: NUMBER OF PRIORITY; FROM: 349508/2001 TO: 394508/2001 |
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| ERR | Gazette correction |
Free format text: CORRECT: NUMBER OF PRIORITY; FROM: 349508/2001 TO: 394508/2001 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 Termination date: 20121226 |