CN101881240B - Novel vacuum degree regulator - Google Patents
Novel vacuum degree regulator Download PDFInfo
- Publication number
- CN101881240B CN101881240B CN2009101359858A CN200910135985A CN101881240B CN 101881240 B CN101881240 B CN 101881240B CN 2009101359858 A CN2009101359858 A CN 2009101359858A CN 200910135985 A CN200910135985 A CN 200910135985A CN 101881240 B CN101881240 B CN 101881240B
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- Prior art keywords
- yoke
- shell
- tube
- magnet yoke
- vacuum degree
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- 238000000034 method Methods 0.000 claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000004080 punching Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 239000000806 elastomer Substances 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 2
- 239000011863 silicon-based powder Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 229920006351 engineering plastic Polymers 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000686 essence Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention relates to a vacuum degree regulator. A flange rabbet is arranged at the front end of a magnet yoke case, the bottom end of a cover cap and the edge of a rubber film are arranged in the flange rabbet, the back end of a magnet yoke tube is provided with a reduced opening, the back end of the magnet yoke case is inserted into the bottom end from the front end of the magnet yoke tube in a matched way, and is formed into a whole body with an installation hoop arranged on the outer peripheral surface of the magnet yoke tube, a coil framework is arranged in the magnet yoke case, an upper magnetic pole component and a lower magnetic pole component are respectively arranged at the front end of the magnet yoke case and the back end of the magnet yoke tube, and the back end of the magnet yoke tube is provided with a coil lead socket. The invention has the advantages that on the premise that the external installation dimension and the body structure of an original product are not changed, the invention is optimized and changed into the application of an ordinary punching and stretching forming process and a mature little-dust or dustless forming process, so the main technical quality index of the whole machine product is more stable and reliable, the process method and structure is simple and convenient, and the effect of reducing the cost of mass production can be reached.
Description
Technical field
The present invention relates to a kind of vacuum degree regulator, is the controlling component of the pneumatic gas recirculation system of a kind of DENG.
Background technique
Along with improving constantly of progress of science and technology and living standard; People improve constantly the requirement of living environment; Therefore to a main cause of befouling environment---the discharging of compound such as the nitrogen oxygen that produces in the internal combustion engine, carbon oxygen and molecule has all had to propose more and more stricter various control criterions; For compound these standards, make that scientist is that motor has increased considerable control function, to reduce the pollution of exhausting air to environment.One of them important control function is exactly the pneumatic EGR of computer control (exhaust gas recirculation) system shown in Figure 1, and this EGR control system has four major parts:
1. the bottom is an engine main body 1; 2. part is pneumatic EGR modulating valve in; 3. top is electronic control unit ECU; 4. right part is the vacuum degree regulator that the present invention relates to.
Waste gas sub-fraction in Fig. 1 lower engine relief opening 23 sends back to suction port 22 more again, gets into fresh fuel-air mixture and participates in burning in the cylinder.Contain a large amount of water vapour and CO in the waste gas
2, and water vapour and CO
2Be very stable gas, it can not burn but can be a large amount of absorption heat energy, harmful maximum temperature is reduced, thereby has reduced the growing amount of N0x in the combustion process, alleviate exhaust emission.But waste gas returns and calorific value is reduced, and the output power of motor is descended to some extent, so the different operating situation of motor should have different EGR to lead.
The subsidiary various sensors 21 of Fig. 1 middle and lower part engine main body 20, also have-60～-vacuum source of 80Kpa, be connected to the input interface of the electromagnetic pulse vacuum degree regulator on Fig. 1 the right.Fig. 1 lower engine relief opening 23 its part waste gas that scavenges is introduced the suction port of EGR valve through cooler, and suction port 22 (external vacuum pump) is guided to Fig. 1 right part vacuum governor inlet with branch line 24, after adjusting, is transported to the inlet of EGR valve.There is the multidimensional numerical control mathematical model that draws through under test room's stand and the various acrimonious condition in electronic control unit (computer) ECU.The electrical signal of the information that ECU input end reception motor multiple sensors 21 provides and the sensing station of EGR modulating valve.All these signals in ECU with the mathematical model of perfect condition contrast computing, error identifying finds to eliminate the needed regulated quantity of error again; ECU sends corresponding regulating command (being generally frequency 250Hz pulse duty factor 10-95% signal) and supplies with Fig. 1 right part ELECTROMAGNETIC VACUUM degree regulator; This regulated signal is converted into corresponding degree of vacuum negative pressure value again and is transported to the input interface of Fig. 1 middle part EGR modulating valve through branch line 25, under each mechanism's effect of EGR modulating valve, has determined the position of valve opening.Regulated new EGR and led and force the waste gas of discharge to return appropriate section, engine operation is being optimized under the desirable state.
The cross-section structure of the pulse Vacuum degree regulator that uses in enormous quantities is as shown in Figure 2 before this; Comprise block 31, elastomer diaphragm 32, iron core 33, go up pole piece 34, coil rack 35, lower magnetic pole parts 36, injection casing 37, yoke 38, installation intermediate plate 39 and coil socket 30; Its working process is at first with iron core plate washer parts 33, last pole piece 34, coil rack 35, lower magnetic pole parts 36, yoke 38 and coil socket 30; Be assembled into an assembly according to illustrated position; Then described assembly integral body is placed in the comprehensive notes tool cavity; PBT is advanced in injection machine spray in cavity, is dissolved for semi liquid state by powder-material, becomes solid-state structure to be overall shaped into injection casing 37; Connect press assembling block 31 and elastomer diaphragm 32 with independent clamping ring at last.
The electro-magnet magnetic yoke (comprising pole piece 34, lower magnetic pole parts 36 and yoke 38, referring to Fig. 2) of existing vacuum degree regulator has two major types, and the core assembly part is as broad as long.
First type as shown in Figure 3; The hole and the moulding that constitute hollow yoke assembly, two part A, B with the I shape yoke A of 3mm heavy-gauge sheeting and U-shaped yoke B must essence be washed into type; Accomplish the complete machine main body and must in the mold of the multi-direction matched moulds motion of three dimensional space multi-angle, assemble a plurality of component.Accomplish with the terephthalate (PBT) engineering plastic injection molding process.
Second type as shown in Figure 4, is machined into the thick cartridge type yoke of 2mm C, and 2 thick magnetic conducting plate D of 3mm are adorned at two ends.Must smart dash or smart machining, putting into the shell E that another terephthalate (PBT) engineering plastic is injection molded into after these three parts assemblings becomes parts; Cartridge type yoke C and two ends are adorned between the thick magnetic conducting plate D and are had magnetic gap; Thickness is that 3mm is too thick, is easy to generate eddy current loss; Shell E is that plastic material is non-magnetic.Above various factors all can reduce electromagnetic efficiency.
Above-mentioned two kinds of yoke parts all can be assembled into complete electromagnet part with iron core 33 shown in Figure 5 respectively.The major axis part of iron core 33 is slided in the endoporus of last concentrating flux sleeve assembly G, and its right end portion lower magnetic pole assembly F left end is formed magnetic pole gap, puts coil rack 35 and accomplishes the electromagnet part with coil.
Need use in the production technology of the product of said structure that precision stamping stretches, middle high-accuracy mechanical processing and at the lathe of big matched moulds, injection pressure; Be equipped with in the structure mold of the complicated three dimensional space multi-angle direction matched moulds motion of highi degree of accuracy; Assemble each portions part; Make the technological method of product main body with an injection molded of terephthalate (PBT) engineering plastic, former method manufacturing process difficulty is big, and cost is higher.
Summary of the invention
The object of the invention just provides a kind of vacuum degree regulator, with the structure that solves existing product add need use that precision stamping stretches man-hour, middle high-accuracy mechanical processing and at the lathe of big matched moulds injection pressure; Be equipped with in the structure mold of the complicated three dimensional space multi-angle direction matched moulds motion of highi degree of accuracy, assemble each portions part, make the product main body with injection molded of terephthalate (PBT) engineering plastic, complex structure, technology difficulty are big, and consumptive material is many, the cost problem of higher.
The technological scheme that the present invention adopts is: comprise shell, iron core, yoke, coil rack, block, elastomer diaphragm; Iron core is slidably mounted in the axle center hole of coil rack; And together install in the enclosure; Front end at this shell is installed block, in this block, elastomer diaphragm is housed, and it is characterized in that: described shell is made up of the yoke shell and the yoke tube of tubular; Front end at this yoke shell is provided with the flange seam, and the bottom of described block and the edge of elastomer diaphragm are installed in this flange seam; Rear end at this yoke tube is provided with reducing, and the rear end of this yoke shell is inserted into the bottom ordinatedly from the front end of yoke tube, and the coil rack that is wound with coil is installed in this yoke shell; Described yoke comprises pole piece, lower magnetic pole parts and described yoke shell and yoke tube, and pole piece and lower magnetic pole parts are installed in the rear end of the front end and the yoke tube of yoke shell respectively on this, and forms magnetic loop with described iron core; Outer circumferential face and rear end at described yoke tube are equipped with installation hoop and coil lead socket respectively.
Advantage of the present invention is: under the prerequisite that does not change original product external form installation dimension and agent structure, part-structure is made the improvement adjustment, optimize to change into and use general punching press, stretch forming process; General simple and mechanical processing technology; The ripe few bits or the powder metallurgical technique of chipless moulding.Thereby make that the major technique quality index of machine product is more reliable and more stable, technological method and structure are simple and direct, can reach to reduce the effect of producing cost in batches.
Description of drawings
Fig. 1 is engine EGR in the existing technology (exhaust gas recirculation) control system schematic diagram;
Fig. 2 is the sectional structure schematic representation of the vacuum degree regulator of existing technology;
Fig. 3 is the perspective view of the hollow yoke assembly of existing technology vacuum degree regulator;
Fig. 4 is the thick cartridge type yoke assembly of existing technology vacuum degree regulator and the perspective view of injection casing;
Fig. 5 is the perspective view of the iron core and the coil rack of existing technology vacuum degree regulator;
Fig. 6 is an overall sectional structure schematic representation of the present invention;
Fig. 7 is a three-dimensional split structural representation of the present invention.
Description of reference numerals: 1, block, 2, elastomer diaphragm, 3, iron core, 4, go up pole piece; 5, coil rack, 6, the lower magnetic pole parts, 7, the yoke shell; 71, flange seam, 8, the yoke tube, 9, hoop is installed; 10, coil lead socket, 11, vacuumize interface, 12, the interface that is connected with the EGR modulating valve; 20, engine body, 21, sensor, 22, suction port, 23, relief opening, 24, branch line, 25, the pipeline between vacuum degree regulator and the EGR valve; Block 31, elastomer diaphragm 32, iron core 33, last pole piece 34, coil rack 35, lower magnetic pole parts 36, injection casing 37, yoke 38, installation intermediate plate 39, coil socket 30; I shape yoke A, U-shaped yoke B, thick cartridge type yoke C, thick magnetic conducting plate D, shell E, lower magnetic pole assembly F, concentrating flux sleeve assembly G.
Embodiment
Referring to Fig. 6 and Fig. 7; The present invention includes block 1, elastomer diaphragm 2, iron core 3, go up pole piece 4, coil rack 5, lower magnetic pole parts 6, yoke shell 7, yoke tube 8, hoop 9 and coil lead socket 10 be installed, on block 1, be provided with and vacuumize interface 11 and the interface 12 that is connected with the EGR modulating valve.Front end at yoke shell 7 is provided with flange seam 71, and the edge of the bottom of described block 1 and elastomer diaphragm 2 is installed in this flange seam 71.Be provided with reducing 81 in the rear end of this yoke tube 8, the rear end of this yoke shell 7 is inserted in the reducing 81 of bottom from the front end of yoke tube 8 ordinatedly, and constitutes one with the installation hoop of the outer circumferential face that is installed in described yoke tube 89.Described coil rack 5 is installed in this yoke shell 7, on coil rack 5, coil is housed; Upward pole piece 4 and lower magnetic pole parts 6 are installed in the rear end of the front end and the yoke tube 8 of yoke shell 7 respectively, in the rear end of described yoke tube 8 coil lead socket 10 are housed.
One end of last pole piece 4 and lower magnetic pole parts 6 inserts respectively in the two ends of coil rack 5 center holes; The other end of last pole piece 4 and lower magnetic pole parts 6 is provided with the outward flange of two end-stopping plates that cover coil rack 5, constitutes closed magnetic loop with yoke shell 7 and yoke tube 8.
Described yoke shell 7, yoke tube 8 and hoop 9 is installed is all selected for use 08F or 08A1 class low-carbon steel plate process on low and middle-grade punching stretch, curved equipment, and thickness is 0.65mm.
Described iron core 3, go up pole piece 4 and lower magnetic pole parts 6 all adopt the powder metallurgical technique moulding, adopt straight iron powder or in straight iron powder, add a spot of Si powder (be generally 0.5～10%, be existing technology).
Further specify practical implementation content of the present invention below:
The independent part of needs sealed clamping ring before the flange seam 71 of described yoke shell 7 had replaced improving; Replace non-magnetic plastics with the magnetic conductive material material,, replace the bad plastics of mechanical property with the high metalwork of intensity; Replace former 2mm, magnetic conduction part part that 3mm is thick with the thick magnetic conduction part part of 0.65mm; thin-walled 0.65mm replaces the heavy wall of 2mm, 3mm, reduce the eddy current loss of magnet case, improve electromagnetic efficiency.Optimize improved yoke shell 7, yoke tube 8 and hoop 9 is installed, is gone up pole piece 4 and lower magnetic pole parts 6; Replace I shape yoke A, U-shaped yoke B among Fig. 3 respectively; Thick cartridge type yoke C among Fig. 4, four parts such as two thick magnetic conducting plate D, shell E, the lower magnetic pole assembly F among Fig. 5, concentrating flux sleeve assembly G.
Four essences among iron core 3, yoke shell 7 and yoke tube 8 replacement Fig. 3, Fig. 4, Fig. 5 are assembled magnet case towards reaching machined part (lower magnetic pole assembly F, concentrating flux sleeve assembly G, iron core 33, last pole piece 34); In magnetic circuit, dispense the magnetic gap of two series connection; Reduce the magnetic pressure of magnetic flux generation and fallen, increased the electromagnetic force at magnetic gap place between active electrode.Add a little Si elements in this part powder metallurgy manufacturing process material, also very good control reduces eddy current loss, has improved electromagnetic efficiency.
Iron core 3 of the present invention is to be processed by Φ 15mm bar high-accuracy mechanical in the prior art, after optimization improves, with the moulding of powder metallurgy process engineering.When this adopted material such as high-grade alloy steel such as Cr12MoV to product of some performance of having relatively high expectations, the material adjustment was more convenient.Because of change has the machining of smear metal is the powder metallurgical technique of chipless; The raising of stock utilization just seems more important to the meaning that reduces product cost.
Claims (3)
1. vacuum degree regulator; Comprise shell, iron core, yoke, coil rack, block, elastomer diaphragm; Iron core is slidably mounted in the axle center hole of coil rack, and together installs in the enclosure, at the front end of this shell block is installed; In this block, elastomer diaphragm is housed; It is characterized in that: described shell is made up of the yoke shell and the yoke tube of tubular, is provided with the flange seam at the front end of this yoke shell, and the bottom of described block and the edge of elastomer diaphragm are installed in this flange seam; Rear end at this yoke tube is provided with reducing, and the rear end of this yoke shell is inserted into the bottom ordinatedly from the front end of yoke tube, and the coil rack that is wound with coil is installed in this yoke shell; Described yoke comprises pole piece, lower magnetic pole parts and described yoke shell and yoke tube, and pole piece and lower magnetic pole parts are installed in the rear end of the front end and the yoke tube of yoke shell respectively on this, and forms magnetic loop with described iron core; Outer circumferential face and rear end at described yoke tube are equipped with installation hoop and coil lead socket respectively.
2. vacuum degree regulator according to claim 1 is characterized in that: described yoke shell, yoke tube and installation hoop are all selected 08F or 08A1 class low-carbon steel plate for use, on low and middle-grade punching stretch, curved equipment, process, and thickness is 0.65mm.
3. vacuum degree regulator according to claim 1 is characterized in that: described iron core, last pole piece and lower magnetic pole parts all adopt the powder metallurgical technique moulding, adopt straight iron powder or in straight iron powder, add the Si powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101359858A CN101881240B (en) | 2009-05-08 | 2009-05-08 | Novel vacuum degree regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101359858A CN101881240B (en) | 2009-05-08 | 2009-05-08 | Novel vacuum degree regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101881240A CN101881240A (en) | 2010-11-10 |
| CN101881240B true CN101881240B (en) | 2012-03-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101359858A Expired - Fee Related CN101881240B (en) | 2009-05-08 | 2009-05-08 | Novel vacuum degree regulator |
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| Country | Link |
|---|---|
| CN (1) | CN101881240B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030884A (en) * | 2022-06-07 | 2022-09-09 | 湖南腾智机电有限责任公司 | Miniature diaphragm formula electron vacuum pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424982Y (en) * | 2009-05-08 | 2010-03-17 | 哈尔滨安龙迪环保科技有限公司 | Novel electromagnetic vacuum regulator |
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2009
- 2009-05-08 CN CN2009101359858A patent/CN101881240B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424982Y (en) * | 2009-05-08 | 2010-03-17 | 哈尔滨安龙迪环保科技有限公司 | Novel electromagnetic vacuum regulator |
Non-Patent Citations (1)
| Title |
|---|
| JP昭59-183061A 1984.10.18 |
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| CN101881240A (en) | 2010-11-10 |
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Owner name: LI MINGXI Free format text: FORMER OWNER: ANLONGDI ENVIRONMENT PROTECTION SCIENCE Effective date: 20111129 |
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Effective date of registration: 20111129 Address after: Jian tou Dao Jie Pingfang District 150066 Heilongjiang city of Harbin province No. 12 Applicant after: Li Mingxi Address before: 150060 No. 6 Bohai Road, cottage economic and Technological Development Zone, Harbin, Heilongjiang Applicant before: Harbin Anlongdi Environment Protection Technology Co., Ltd. |
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Effective date of registration: 20180709 Address after: 150060 room 311, unit 1, business center, 6 Bohai Road, Ping Fang District, Harbin, Heilongjiang Patentee after: Harbin Anlongdi Environment Protection Technology Co., Ltd. Address before: 150066 12 Jianan street, Jianfang District, Harbin, Heilongjiang. Patentee before: Li Mingxi |
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