CN2526533Y - Pressure wave generator using metal bellows to replace reciprocating cylinder piston - Google Patents
Pressure wave generator using metal bellows to replace reciprocating cylinder piston Download PDFInfo
- Publication number
- CN2526533Y CN2526533Y CN 01275456 CN01275456U CN2526533Y CN 2526533 Y CN2526533 Y CN 2526533Y CN 01275456 CN01275456 CN 01275456 CN 01275456 U CN01275456 U CN 01275456U CN 2526533 Y CN2526533 Y CN 2526533Y
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- pressure wave
- wave generator
- bellows
- cylinder piston
- metal bellows
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Abstract
The utility model relates to a pressure wave generator which replaces a reciprocating cylinder piston with a metal corrugated membrane box. The utility model comprises a shell. The bottom of the shell is provided with a protuberance and a wiring column; the protuberance is provided with a supporting spring; one end of the supporting spring is arranged at one end of a movable ring frame; the circumference of the movable ring frame is enwound with leads; the other end of the movable ring frame is welded with the metal membrane box; the other end of the metal membrane box is welded into a whole with the cylinder body; the center of the cylinder body is provided with a passage connected with an exterior application part; the metal membrane box is fixed with the end surface of the cylinder body through a bolt; a magnetizer A and a permanent magnet are sequentially arranged on the upper part of an internal cavity of the shell; an edge of a casing-shaped magnetizer B with the edge is pressed on the permanent magnet; the casing of the magnetizer B passes through a movable ring frame gap. On the action of alternating current, an electromagnetic driving mechanism pushes the metal membrane box to reciprocate, causing the air pressure in the membrane box to be periodically increased or reduced, and pressure wave is outwards output.
Description
Technical field
The utility model relates to a kind of pressure wave generator, particularly relates to a kind of wavy metal bellows that adopts and replaces reciprocating type steam-cylinder piston to produce the pressure wave generator of high strength sound wave.
Background technique
Pressure wave generator is widely used in industry, particularly at the low temperature philip refrigerator many application is arranged.At present, drive reciprocating pressure wave generator such as document [1]: the Yu Yongzhang of steam-cylinder piston by electromagnetic oscillations, Liu Yong writes, Special Compressor: power, chemical industry and cooling; Beijing, China Machine Press, 1989 are introduced: it is that directly to produce reciprocal Driving force driven plunger by Ac reciprocating; As shown in Figure 1: it mainly comprises permanent magnet (3), magnet case A, B (2,4), the moving coil framework (8) that is wound with coil (7), supported spring (10), piston (6), cylinder (5) and housing (1) etc.Though this a kind of pressure wave generator has potential high-efficiency characteristics, it needs steam-cylinder piston that high machining accuracy, perfect assembly technology and measure are arranged.Generally speaking, there is very big friction owing to processing and assemble difficulty between the bucket cylinder of this pressure wave generator, thereby seriously influenced its reliability and efficient.In addition, because the processing and the installation precision of steam-cylinder piston are very high, so cost is very high.Particularly, when this pressure wave generator is used for regenerating type low-temperature refrigerator,, usually cause the refrigerator performance decrease because the venting of fricative iron pin and internal material is polluted.
Summary of the invention
The objective of the invention is to solve the above-mentioned shortcoming of cylinder piston type electric and magnetic oscillation pressure wave generator; For reliability and the efficient that improves pressure wave generator; In order to provide a kind of processing and easy to assembly and the low compressible wavy metal bellows of employing of cost to replace the pressure wave generator of steam-cylinder piston.
The object of the present invention is achieved like this: employing wavy metal bellows provided by the invention replaces the pressure wave generator (as shown in Figure 2) of reciprocating type steam-cylinder piston to comprise housing, magnet case A and B, permanent magnet, is wound with the moving coil framework of conductive coil; It is characterized in that: also comprise wiring terminal, spring, compressible ripple spring bellows, have the cylindrical body of passage on it; Its middle shell is the drum shape, and housing bottom has a roundlet pylon of giving prominence to and wiring terminal is arranged, and is equipped with supported spring on the roundlet pylon of giving prominence to; One end of supported spring is installed in an end of circular moving coil framework, be tied with lead on the circumference of moving coil framework, the two ends of lead respectively connect a wiring terminal, be the other end of moving coil framework of mountain font and metal bellows by being welded to connect, the other end of metal bellows and cylindrical body are welded to connect and are integral, cylindrical center has a passage that is connected with outside use parts, and passes through the bolt metal bellows with cylindrical end face; The magnet case A of round barrel shape, permanent magnet and magnet case B are installed in the inner chamber of housing in proper order, and form the slit; Moving coil framework is tied with the part of lead and then inserts among the slit.
Also be included in cylindrical another side and by a connection piece one pressure wave generator be installed again and constituted opposed type pressure wave generator (as shown in Figure 3), and have a radial passage at the sidewall of link, this passage only with cylindrical channel connection.
Wavy metal bellows among the present invention adopts elasticity material preferably, as beryllium bronze, high elasticity stainless steel.Production method has common shaped by fluid pressure or is welded; In order to make ripple spring bellows obtain enough displacements, generally should adopt the multilayer spring, can make ripple spring bellows that arranged very long working life like this.
The lead that is tied with on the circumference of described moving coil framework comprises that diameter is the lead of the height insulation of the high insulated copper lead of 1-3 millimeter or other 1-3 millimeter.
Described compressible wavy metal bellows is that multilayer stainless steel sheets between the 0.1-0.2 millimeter is welded by thickness.
Magnet case A in this pressure wave generator, permanent magnet, magnet case B form a field circuit between slit, feed Ac by the spring-supported moving coil framework that is wound with copper conductor.According to Ampere law, the moving coil framework that feeds Ac will be subjected to reciprocal Driving force and coil is moved back and forth under the effect in magnetic field.In this programme, an end of moving coil framework and compressible ripple spring bellows connects together, but ripple spring bellows do not communicate with pressure wave generator inside, pollutes with the venting that prevents the pressure wave generator internal material.Because the to-and-fro motion of moving-coil makes the variation of the volume generating period of ripple spring bellows inside.When the variation of ripple spring bellows internal capacity generating period, the pressure of its gas inside has promptly produced pressure wave with regard to the variation of generating period.Wavy metal bellows in this programme is owing to adopt multilayer corrugated spring bellows, wavy metal bellows in dead this programme of its inside is owing to adopt multilayer corrugated spring bellows, its inner dead volume is bigger, thereby adds the cylinder that reduces dead volume in this pressure wave generator.
Pressure wave generator of the present invention is compared with the electric and magnetic oscillation pressure wave generator of steam-cylinder piston type, and its advantage is:
(1) thoroughly eliminated friction between the steam-cylinder piston, thereby the reliability of pressure wave generator and efficient can get a greater increase;
(2) do not need high-precision processing and fabricating and mounting process, thereby fabricating cost can reduce significantly
(3), thereby can prevent that the working gas in the wavy metal bellows from being polluted owing to the gas in the pressure wave generator does not communicate with the gas that wavy metal is touched in the box.
Description of drawings
The structural representation of electromagnetic oscillations formula pressure wave generator in Fig. 1 prior art.
Fig. 2 the utility model adopts the wavy metal bellows to replace a kind of structural representation of the pressure wave generator of reciprocating type steam-cylinder piston.
Another opposed type pressure wave generator of Fig. 3 the utility model embodiment's structural representation
The drawing explanation:
Housing-1 magnet case A-2 magnet case B-4
Permanent magnet-3 cylinder-5 piston-6
Lead (coil)-7 moving coil framework-8 wiring terminal-9
Supported spring-10 wavy metal bellows-11 cylindrical body-12
Passage-13 slit-14 connected element-15
Radial passage-16
Embodiment
Embodiment 1: make single pressure wave generator that adopts the wavy metal bellows to replace reciprocating type steam-cylinder piston that drives by Fig. 2
The housing 1 of this pressure wave generator adopts alloy aluminum to make, and its objective is to reduce weight and strengthen heat exchange; Permanent magnet 3 adopts the higher NdFeB material of magnetic energy level, and it can produce the magnetic intensity that reaches between the 1-1.3T (tesla) at the slit 14 of field circuit, helps reducing the electric current on coil 7 moving-coils, thereby reduces the Joule heat loss in the coil.Magnet case 2,4 adopts the DT4 electrical pure iron to make.Moving coil framework 8 is that the high insulated copper lead of 1-3 millimeter forms by coiling diameter on the alloy aluminum skeleton.Compressible wavy metal bellows 12 is that multilayer stainless steel sheets (market has approved product to select for use) between the 0.1--0.2 millimeter is welded by thickness.Moving coil framework 8 and wavy metal bellows 11 connect or alternate manner links into an integrated entity by gluing.Housing 1 is the drum shape, and housing 1 bottom has an outstanding roundlet pylon to be equipped with supported spring 10 with having on wiring terminal 9, one projectioies; One end of supported spring 10 is installed in an end of the moving coil framework 8 that is the mountain font, be tied with copper conductor 7 on the circumference of moving coil framework 8, the other end of moving coil framework 8 is connected with the method (just being welded as a whole before assembling) of metal bellows 11 by welding, the other end of metal bellows 11 and cylindrical body 12 also link into an integrated entity by welding, the center of cylindrical body 12 has a passage 13, and passes through the bolt metal bellows 11 shown in the figure with the end face of cylindrical body 12; Magnet case A and permanent magnet 3 orders are installed in the inner chamber top of housing 1, the magnet case B that the cover on a band edge is barrel-shaped along gland on permanent magnet 3, the cover bucket of its magnet case B pierces in moving coil framework 8 slits; Owing to a cylindrical body 12 is arranged in the wavy metal bellows, be used for reducing the dead volume in the ripple sylphon 11.When feeding the Ac of 1-3 ampere, it is reciprocating that moving coil framework 8 drives the wavy metal bellows, makes the variation of the volume generating period in the wavy metal bellows.If this system charges into gas, then in the wavy metal bellows, produce periodic variation in pressure.
This pressure wave generator can be widely used in the philip refrigerator in refrigeration and the low temperature industry, for example Stirling, pulse tube refrigerating machine and hot sound refrigerating machine.
Use the method that this pressure wave generator produces pressure wave: between slit 14, form a field circuit at magnet case A, permanent magnet 3, magnet case B.The direction of the magnetic line of force is along radial direction from inside to outside or ecto-entad (deciding according to the N of permanent magnet 3, the layout at the two poles of the earth, the S left and right sides) in whole slit.This magnetic circuit system provides a stable permanent-magnetic field; Behind the 9 feeding Ac that go between, Ac has along the circumferential direction just been arranged also on the coil 7.When the positive half period of Ac, because the interaction of Ac and permanent-magnetic field will produce an active force that acts on the moving coil framework 8, the direction of this active force is (perhaps left) to the right; Otherwise,, will produce the power on the moving coil framework 8 of acting on of (perhaps to the right) left at the negative half-cycle of Ac; Because moving coil framework 8 links together with metal bellows 11, therefore, moving coil framework 8 is to the right or under this periodic active force left, to periodically promote metal bellows 11 motions, metal bellows 11 gas inside media are compressed and expand, thereby produced property ground rising of gas pressure week and reduction, promptly produced pressure wave.
Embodiment 2: make a pair of by Fig. 3 and drive the pressure wave generator that opposed type employing wavy metal bellows replaces reciprocating type steam-cylinder piston
The material of the relevant component of this pressure wave generator and preparation process and enforcement 1 are basic identical, just increased a pressure wave generator, between two pressure wave generators by one adopt connected element 15 that duralumin makes with about two single pressure wave generators be fixed into one, and at passage 16 of radially processing of this connected element 15, promptly be the pressure wave delivery outlet, this passage of radially processing 16 communicates with the passage 13 of the cylindrical body 12 of pressure wave generator.This pressure wave generator is because bilateral symmetry, thereby its vibration and noise are minimum, and application is more widely arranged in philip refrigerator.
Claims (6)
1. a pressure wave generator that adopts the wavy metal bellows to replace reciprocating type steam-cylinder piston comprises housing (1), magnet case A (2) and B (4), permanent magnet (3), is wound with the moving coil framework (8) of conductive coil (7); It is characterized in that: also comprise wiring terminal (9), spring (10), compressible ripple spring bellows (11), have the cylindrical body (12) of passage (13) on it; Its middle shell (1) is the drum shape, and there is a roundlet pylon of giving prominence to housing (1) bottom and wiring terminal (9) is arranged, and is equipped with supported spring (10) on the roundlet pylon of giving prominence to; One end of supported spring (10) is installed in an end of circular moving coil framework (8), be tied with lead (7) on the circumference of moving coil framework (8), the two ends of lead (7) respectively connect a wiring terminal (9), be the other end of moving coil framework (8) of mountain font and metal bellows (11) by being welded to connect, the other end of metal bellows (11) and cylindrical body (12) are welded to connect and are integral, the center of cylindrical body (12) has a passage (13) that is connected with outside use parts, and passes through bolt metal bellows (11) with the end face of cylindrical body (12); The magnet case A (2) of round barrel shape, permanent magnet (3) and magnet case B (4) order are installed in the inner chamber of housing (1), and form slit (14); Moving coil framework (8) is tied with the part of lead and then inserts among the slit (14).
2. the pressure wave generator that replaces reciprocating type steam-cylinder piston by the described employing wavy metal of claim 1 bellows, it is characterized in that: the another side that also is included in cylindrical body (12) is installed a pressure wave generator by a connection piece (15) symmetry, and having a radial passage (16) at the sidewall of link, this passage (16) only is communicated with the passage (13) of cylindrical body (12).
3. replace the pressure wave generator of reciprocating type steam-cylinder piston by the described employing wavy metal of claim 1 bellows, it is characterized in that: described wavy metal bellows (11) adopts elastic material, is made into common shaped by fluid pressure or welding.
4. replace the pressure wave generator of reciprocating type steam-cylinder piston by the described employing wavy metal of claim 1 bellows, it is characterized in that: described wavy metal bellows (11) adopts beryllium bronze, high elasticity stainless steel to make.
5. replace the pressure wave generator of reciprocating type steam-cylinder piston by the described employing wavy metal of claim 1 bellows, it is characterized in that: the lead that is tied with on the circumference of described moving coil framework comprises that diameter is the lead of the height insulation of the high insulated copper lead of 1-3 millimeter or other 1-3 millimeter.
6. replace the pressure wave generator of reciprocating type steam-cylinder piston by the described employing wavy metal of claim 1 bellows, it is characterized in that: described compressible wavy metal bellows is that multilayer stainless steel sheets between the 0.1-0.2 millimeter is welded by thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275456 CN2526533Y (en) | 2001-11-30 | 2001-11-30 | Pressure wave generator using metal bellows to replace reciprocating cylinder piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275456 CN2526533Y (en) | 2001-11-30 | 2001-11-30 | Pressure wave generator using metal bellows to replace reciprocating cylinder piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526533Y true CN2526533Y (en) | 2002-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01275456 Expired - Fee Related CN2526533Y (en) | 2001-11-30 | 2001-11-30 | Pressure wave generator using metal bellows to replace reciprocating cylinder piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526533Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386520C (en) * | 2004-12-27 | 2008-05-07 | 西安交通大学 | Method for employing corrugated pipe as working chamber of positive displacement type compressor |
| CN104968444A (en) * | 2013-02-08 | 2015-10-07 | 全面熔合有限公司 | Pressure wave generator with a sabot launched piston |
| CN105952618A (en) * | 2016-07-04 | 2016-09-21 | 陈智佳 | Oilless refrigeration compressor |
| CN105971860A (en) * | 2016-07-12 | 2016-09-28 | 高健明 | Bellows pump |
| CN112856238A (en) * | 2020-12-21 | 2021-05-28 | 西安交通大学 | Mechanically-driven continuous impact pressure wave generator and pipeline abnormal state detection device based on same |
-
2001
- 2001-11-30 CN CN 01275456 patent/CN2526533Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386520C (en) * | 2004-12-27 | 2008-05-07 | 西安交通大学 | Method for employing corrugated pipe as working chamber of positive displacement type compressor |
| CN104968444A (en) * | 2013-02-08 | 2015-10-07 | 全面熔合有限公司 | Pressure wave generator with a sabot launched piston |
| CN104968444B (en) * | 2013-02-08 | 2016-12-28 | 全面熔合有限公司 | There is the pressure wave generator of launching carrier emission-type plunger |
| CN105952618A (en) * | 2016-07-04 | 2016-09-21 | 陈智佳 | Oilless refrigeration compressor |
| CN105971860A (en) * | 2016-07-12 | 2016-09-28 | 高健明 | Bellows pump |
| CN112856238A (en) * | 2020-12-21 | 2021-05-28 | 西安交通大学 | Mechanically-driven continuous impact pressure wave generator and pipeline abnormal state detection device based on same |
| CN112856238B (en) * | 2020-12-21 | 2022-01-25 | 西安交通大学 | Mechanically-driven continuous impact pressure wave generator and pipeline abnormal state detection device based on same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20021218 Termination date: 20101130 |