CN105673449A - Noise reduction and energy conservation piston type compressor - Google Patents
Noise reduction and energy conservation piston type compressor Download PDFInfo
- Publication number
- CN105673449A CN105673449A CN201610188646.6A CN201610188646A CN105673449A CN 105673449 A CN105673449 A CN 105673449A CN 201610188646 A CN201610188646 A CN 201610188646A CN 105673449 A CN105673449 A CN 105673449A
- Authority
- CN
- China
- Prior art keywords
- sourdine
- noise elimination
- cylinder block
- elimination cavity
- noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
Abstract
The invention discloses a noise reduction and energy conservation piston type compressor. The noise reduction and energy conservation piston type compressor comprises a cylinder seat, a cylinder cover and a coiled pipe. An exhaust cavity is formed between the cylinder seat and the cylinder cover. The noise reduction and energy conservation piston type compressor further comprises a set of silencers. Each silencer comprises a silencing cavity and a silencing cover arranged on the silencing cavity; and the silencing cavities are integrated on the cylinder seat. The silencers include the first silencer, the second silencer, the third silencer and the fourth silencer. The silencing cavity of the first silencer is communicated with the exhaust cavity. The silencing cavities of the first silencer, the second silencer, the third silencer and the fourth silencer are sequentially communicated. The silencing cavity of the second silencer or the third silencer or the fourth silencer is communicated with the coiled pipe. Four-stage silencing or three-stage silencing or two-stage silencing can be achieved through the silencers. According to the piston type compressor, silencing and shock absorbing are conducted through multi-stage silencing, good silencing and vibration absorbing effects are achieved, the silencing cavities are integrated on the cylinder seat, and the structure is simple.
Description
Technical field
The present invention relates to Compressor Technology field, especially relate to one and fall energy-saving piston-type compressor of making an uproar.
Background technology
In order to reduce, noise is many arranges a sourdine to existing reciprocating compressor on cylinder block or vapor pipe, forms single-stage and eliminates the noise; The disadvantage of single-stage sourdine is as kl=n π, transmission loss is always reduced to zero, namely exist and many pass through frequency, being 0 by the sourdine noise elimination loss of frequency place, do not have noise elimination effect, although increasing a Helmholtz at cylinder block to be vented resonator at all, owing to Helmholtz's discharge chamber feature is absorption low-frequency noise, and the selectivity of low frequency frequency is strong, therefore, even if adding that in different side Helmholtz's discharge chamber frequency of noise elimination is also extremely limited. Set up independent sourdine, complex structure, it is difficult to reach good silencing vibration-damping effect simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide one and falls energy-saving piston-type compressor of making an uproar, and it has good silencing vibration-damping effect.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
Energy-saving piston-type compressor of making an uproar falls in one, comprise cylinder block and cylinder head and coil pipe, it is formed with discharge chamber between described cylinder block and cylinder head, also comprise one group of sourdine, described sourdine comprises noise elimination cavity and establishes the noise elimination lid on noise elimination cavity, noise elimination cavity is integrated on cylinder block, described one group of sourdine comprises the first sourdine, 2nd sourdine, 3rd sourdine, 4th sourdine, the noise elimination cavity of the first sourdine is connected with discharge chamber, first sourdine, 2nd sourdine, the noise elimination cavity of the 3rd sourdine and the 4th sourdine is connected successively, the noise elimination cavity of the 2nd sourdine or the 3rd sourdine or the 4th sourdine is connected with coil pipe, one group of sourdine can be formed level Four eliminate the noise or three grades eliminate the noise or two grades of noise eliminations.
Further, described coil pipe has U shape structure.
Described first sourdine and the 2nd sourdine are positioned at cylinder block side, 3rd sourdine and the 4th sourdine are positioned at another side of cylinder block, and the connecting passage between connecting passage between the noise elimination cavity of the first sourdine and the noise elimination cavity of the 2nd sourdine, the noise elimination cavity of the 3rd sourdine and the noise elimination cavity of the 4th sourdine is all integrated in cylinder block.
Being provided with valve plate between described cylinder block and cylinder head, on described valve plate, in corresponding cylinder block, piston side is provided with groove.
Described cylinder block is an integral structure component.
The inhaling silencer that cylinder head position is provided with cylinder block suction opening is connected of described cylinder block.
The noise elimination cavity of described 4th sourdine is provided with the 4th noise elimination lid, and described coil pipe one end is located at the 4th noise elimination and covers.
U shape structure on described coil pipe is two, and is provided with damping spring on coil pipe.
It is connected by the noise elimination cavity pipe connecting outside cylinder block between the noise elimination cavity of described 2nd sourdine and the noise elimination cavity of the 3rd sourdine.
Described noise elimination cavity pipe connecting has U shape structure.
The present invention compared with prior art, has the following advantages:
This reciprocating compressor carries out silencing vibration-damping by multistage sourdine, has good silencing vibration-damping effect, and noise elimination cavity is integrated on cylinder block, and structure is simple; And having additional adiabatic good inhaling silencer at cylinder block head, inhaling silencer is heated further by housing after avoiding refrigeration agent to be inhaled into housing, increase air-breathing density, simultaneously because cylinder block is overall cylinder seat, without moon alveolus, therefore, refrigerator oil can be avoided to enter cylinder holes by moon alveolus, owing to valve plate is groove valve plate, clearance volume reduces, air-breathing density increases, and improves compressor gas transmission coefficient further, it is to increase refrigerating duty, simultaneously because the existence of inhaling silencer, reduce further noise.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
Fig. 1 is compressor arrangement schematic diagram of the present invention.
Fig. 2 is compressor side schematic view of the present invention.
Fig. 3 is cylinder block structural representation of the present invention.
Fig. 4 is muffler coupling structure schematic diagram of the present invention.
Fig. 5 is coil pipe unit construction schematic diagram of the present invention.
Fig. 6 is valve board structure schematic diagram of the present invention.
Fig. 7 is inhaling silencer structural representation of the present invention.
Fig. 8 is bar linkage structure schematic diagram of the present invention.
In figure: 1. cylinder block, 2. the 3rd eliminate the noise lid, 3. the 4th eliminate the noise lid, 4. coil pipe, 4a. coil pipe the one U shape structure, 4b. coil pipe the 2nd U shape structure, 4c. damping spring, 5. noise elimination cavity pipe connecting, 6. first eliminate the noise lid, 7. the 2nd eliminate the noise lid, 8. cylinder head, 9. valve plate, 10. screw, 11. connecting rods, 12. bent axles, 13. inhaling silencers, 14. first noise elimination cavities, 15. the 2nd noise elimination cavities, 16. the 3rd noise elimination cavities, 17. the 4th noise elimination cavities.
Embodiment
Compare accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figures 1 to 8, this falls energy-saving piston-type compressor of making an uproar, comprise cylinder block 1, cylinder head 8, coil pipe 4, valve plate 9, connecting rod 11, bent axle 12 and one group of sourdine, wherein, valve plate 9 is arranged between cylinder block 1 and cylinder head 8, and valve plate is provided with the pore being connected cylinder block and cylinder head, is formed with discharge chamber between cylinder block and cylinder head, connecting rod 11 one end is connected with the piston in cylinder block, and the connecting rod the other end is connected with bent axle 12.
Each sourdine includes noise elimination cavity and establishes the noise elimination lid on noise elimination cavity, and each noise elimination cavity is all integrated on cylinder block, and structure is simple, and silencing vibration-damping effect is good.
One group of sourdine comprises the first sourdine, the 2nd sourdine, the 3rd sourdine, the 4th sourdine; It is specially, the first noise elimination lid 6 that first sourdine comprises the first noise elimination cavity 14 and covers on the first noise elimination cavity, the 2nd noise elimination lid 7 that 2nd sourdine comprises the 2nd noise elimination cavity 15 and covers on the 2nd noise elimination cavity, 3rd sourdine comprises the 4th noise elimination lid 3 that the 3rd noise elimination cavity 16 comprises the 4th noise elimination cavity 17 with the 3rd noise elimination lid the 2, four sourdine covered on the 3rd noise elimination cavity and covers on the 4th noise elimination cavity.
The noise elimination cavity of the first sourdine is connected with discharge chamber, and the first noise elimination cavity, the 2nd noise elimination cavity, the 3rd noise elimination cavity and the 4th noise elimination cavity are connected successively, and the 4th noise elimination cavity is connected with coil pipe 4. According to noise requirements, selecting different stage sourdine, what can forming and eliminate the noise, which noise elimination coil pipe is just arranged on covers; During as needed level Four to eliminate the noise, coil pipe is arranged on the 4th noise elimination and covers; During as needed three grades to eliminate the noise, coil pipe is then arranged on the 3rd noise elimination and covers; During as needed two grades to eliminate the noise, coil pipe is then arranged on the 2nd noise elimination and covers; Preferably, coil pipe one end is located at level Four noise elimination and covers, and is convenient to installation operation, and soundproof effect is good.
First noise elimination cavity 14 and the 2nd noise elimination cavity 15 are positioned at cylinder block 1 side, 3rd noise elimination cavity 16 and the 4th noise elimination cavity 17 are positioned at another side of cylinder block 1, and the connecting passage between connecting passage between the first noise elimination cavity and the 2nd noise elimination cavity, the 3rd noise elimination cavity and the 4th noise elimination cavity is all integrated in cylinder block. It is connected by the noise elimination cavity pipe connecting 5 outside cylinder block between 2nd noise elimination cavity with the 3rd noise elimination cavity.
One group of sourdine can form level Four noise elimination, three grades of noise eliminations, two grades of noise eliminations as required. What the noise elimination divergence ratio designing two grades was different from that traditional one-level eliminates the noise protects a ratio, two grades of noise eliminations is had different from frequency, and such two grades of noise eliminations can improve the characteristic of whole frequency of noise elimination, also makes total noise elimination amount improve simultaneously. Design three grades of noise eliminations, although two grades of noise eliminations can make total noise elimination amount improve, but in order to improve soundproof effect further, forms three grades of noise eliminations by being different from two grades of noise elimination divergence ratios and similar tubular stinger, one avoids sourdine when too near, affects mutually between each sourdine. Two by noise elimination cavity pipe connecting 5 eliminate respectively n be odd and even number by frequency low ebb, so that the frequency response rational curve of sourdine is straight, three grades of noise eliminations and noise elimination cavity pipe connecting 5 can reduce difference further and pass through frequency amplitude, noise elimination cavity pipe connecting has U shape structure, reduces complete machine noise figure further.
Design level Four is eliminated the noise, due to always have some sourdines by frequency not at each sourdine by frequency, therefore increasing a level Four again on eliminating the noise basis at three grades to eliminate the noise, being eliminated the noise by level Four, it is different from frequency amplitude to reduce further, a more step-down low complete machine noise figure.
Having two U shape structures on coil pipe 4, two U shape structures have certain distance. Being specially, coil pipe one end is located at the 4th noise elimination and covers, and is coil pipe the one U shape structure 4a near the 4th U shape structure eliminating the noise lid, and another is coil pipe the 2nd U shape structure 4b, and is provided with damping spring 4c on coil pipe. Or arranging multiple U shape structure, many U shape coil pipe elastomeric component and damping spring, by compressor unbalanced force, the vibration that gas exciting force etc. produce is by many resilient connection, vibration is weakened and reduces, effectively stop vibration to housing transmission, reduce compressor noise further.
Compressor is because multistage noise elimination exists, the pressure-losses is there is in refrigeration agent in flow process, overall cylinder block and the connecting rod of part it is provided with at cylinder block cylinder head position, refrigerator oil is avoided to get rid of in cylinder by cylinder block afterbody groove, refrigerant quality is increased, the refrigeration agent participating in refrigeration is many, it is to increase compressor refrigerating capacity.
Compressor is because multistage noise elimination exists, the pressure-losses is there is in refrigeration agent in flow process, for reducing the pressure-losses further, by valve plate 9, groove is set, groove is arranged towards piston in cylinder block, and is provided with the screw 10 for locating on valve plate in respective slot, reduces clearance volume by groove, increase compressor gas transmission coefficient, it is to increase compressor refrigerating capacity.
Compressor is because multistage noise elimination exists, the pressure-losses is there is in refrigeration agent in flow process, for reducing the pressure-losses, improve air-breathing density, the adiabatic good uniform inhaling silencer 13 of thickness it is provided with at cylinder head position, the material of this inhaling silencer 13 can be polybutylene terephthalate, after this inhaling silencer avoids refrigeration agent to be inhaled into housing, heated further by housing, this inhaling silencer had both made air-breathing density increase, it is to increase compressor gas transmission coefficient, it is to increase refrigerating duty, simultaneously again because inhaling silencer exists, reduce further noise.
This reciprocating compressor carries out silencing vibration-damping by level Four sourdine, has good silencing vibration-damping effect, and noise elimination cavity is integrated on cylinder block, and structure is simple.
Above in conjunction with accompanying drawing to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the design of the present invention and the improvement of various unsubstantialities that technical scheme carries out; or without improving, the design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention.
Claims (10)
1. one kind is fallen energy-saving piston-type compressor of making an uproar, comprise cylinder block and cylinder head and coil pipe, it is formed with discharge chamber between described cylinder block and cylinder head, it is characterized in that: also comprise one group of sourdine, described sourdine comprises noise elimination cavity and establishes the noise elimination lid on noise elimination cavity, noise elimination cavity is integrated on cylinder block, described one group of sourdine comprises the first sourdine, 2nd sourdine, 3rd sourdine, 4th sourdine, the noise elimination cavity of the first sourdine is connected with discharge chamber, first sourdine, 2nd sourdine, the noise elimination cavity of the 3rd sourdine and the 4th sourdine is connected successively, the noise elimination cavity of the 2nd sourdine or the 3rd sourdine or the 4th sourdine is connected with coil pipe, one group of sourdine can be formed level Four eliminate the noise or three grades eliminate the noise or two grades of noise eliminations.
2. energy-saving piston-type compressor of making an uproar falls as claimed in claim 1, it is characterised in that: described coil pipe has U shape structure.
3. energy-saving piston-type compressor of making an uproar falls as claimed in claim 1, it is characterized in that: described first sourdine and the 2nd sourdine are positioned at cylinder block side, 3rd sourdine and the 4th sourdine are positioned at another side of cylinder block, and the connecting passage between connecting passage between the noise elimination cavity of the first sourdine and the noise elimination cavity of the 2nd sourdine, the noise elimination cavity of the 3rd sourdine and the noise elimination cavity of the 4th sourdine is all integrated in cylinder block.
4. energy-saving piston-type compressor of making an uproar falls as claimed in claim 1, it is characterised in that: being provided with valve plate between described cylinder block and cylinder head, on described valve plate, in corresponding cylinder block, piston side is provided with groove.
5. energy-saving piston-type compressor of making an uproar falls as claimed in claim 1, it is characterised in that: described cylinder block is an integral structure component.
6. energy-saving piston-type compressor of making an uproar falls as claimed in claim 1, it is characterised in that: the inhaling silencer that cylinder head position is provided with cylinder block suction opening is connected of described cylinder block.
7. energy-saving piston-type compressor of making an uproar falls as claimed in claim 1, it is characterised in that: the noise elimination cavity of described 4th sourdine is provided with the 4th noise elimination lid, and described coil pipe one end is located at the 4th noise elimination and covers.
8. energy-saving piston-type compressor of making an uproar falls as claimed in claim 2, it is characterised in that: the U shape structure on described coil pipe is two, and is provided with damping spring on coil pipe.
9. energy-saving piston-type compressor of making an uproar falls as claimed in claim 3, it is characterised in that: it is connected by the noise elimination cavity pipe connecting outside cylinder block between the noise elimination cavity of described 2nd sourdine and the noise elimination cavity of the 3rd sourdine.
10. energy-saving piston-type compressor of making an uproar falls as claimed in claim 9, it is characterised in that: described noise elimination cavity pipe connecting has U shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188646.6A CN105673449B (en) | 2016-03-25 | 2016-03-25 | A kind of noise-reduction energy-saving piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188646.6A CN105673449B (en) | 2016-03-25 | 2016-03-25 | A kind of noise-reduction energy-saving piston compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105673449A true CN105673449A (en) | 2016-06-15 |
| CN105673449B CN105673449B (en) | 2018-06-08 |
Family
ID=56225562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610188646.6A Active CN105673449B (en) | 2016-03-25 | 2016-03-25 | A kind of noise-reduction energy-saving piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673449B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438286A (en) * | 2016-12-09 | 2017-02-22 | 芜湖欧宝机电有限公司 | Energy-saving, noise-reduction, silencing and vibration-absorption reciprocating piston type compressor and noise-reduction and silencing method thereof |
| CN108443112A (en) * | 2018-03-29 | 2018-08-24 | 加西贝拉压缩机有限公司 | A kind of exhaust system for reciprocating compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242830A (en) * | 2001-01-19 | 2002-08-28 | Samsung Kwangju Electronics Co Ltd | Reciprocation type compressor having discharge pulsation reduction structure |
| KR20050059877A (en) * | 2003-12-15 | 2005-06-21 | 엘지전자 주식회사 | A discharging system for multiple hermetic compressor |
| JP2006029322A (en) * | 2004-07-20 | 2006-02-02 | Samsung Kwangju Electronics Co Ltd | Hermetic compressor |
| US20090232671A1 (en) * | 2006-12-27 | 2009-09-17 | Min-Kyu Jung | Discharging Noise System of a Hermetic Compressor |
| CN202187882U (en) * | 2011-07-02 | 2012-04-11 | 胡雪群 | Compressor frame |
| CN205559208U (en) * | 2016-03-25 | 2016-09-07 | 芜湖欧宝机电有限公司 | Energy -conserving piston compressor that makes an uproar falls |
-
2016
- 2016-03-25 CN CN201610188646.6A patent/CN105673449B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242830A (en) * | 2001-01-19 | 2002-08-28 | Samsung Kwangju Electronics Co Ltd | Reciprocation type compressor having discharge pulsation reduction structure |
| KR20050059877A (en) * | 2003-12-15 | 2005-06-21 | 엘지전자 주식회사 | A discharging system for multiple hermetic compressor |
| JP2006029322A (en) * | 2004-07-20 | 2006-02-02 | Samsung Kwangju Electronics Co Ltd | Hermetic compressor |
| US20090232671A1 (en) * | 2006-12-27 | 2009-09-17 | Min-Kyu Jung | Discharging Noise System of a Hermetic Compressor |
| CN202187882U (en) * | 2011-07-02 | 2012-04-11 | 胡雪群 | Compressor frame |
| CN205559208U (en) * | 2016-03-25 | 2016-09-07 | 芜湖欧宝机电有限公司 | Energy -conserving piston compressor that makes an uproar falls |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438286A (en) * | 2016-12-09 | 2017-02-22 | 芜湖欧宝机电有限公司 | Energy-saving, noise-reduction, silencing and vibration-absorption reciprocating piston type compressor and noise-reduction and silencing method thereof |
| CN106438286B (en) * | 2016-12-09 | 2018-06-08 | 芜湖欧宝机电有限公司 | The Reciprocting piston compressor of energy-saving and noise-reducing silencing vibration-damping and its noise reduction sound-deadening method |
| CN108443112A (en) * | 2018-03-29 | 2018-08-24 | 加西贝拉压缩机有限公司 | A kind of exhaust system for reciprocating compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105673449B (en) | 2018-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103292522B (en) | Heat exchanger for air-conditioning system | |
| CN102168665A (en) | Cylinder seat of piston type refrigerating compressor | |
| CN113357129B (en) | Exhaust noise reduction structure, compressor and refrigeration equipment | |
| CN106322563B (en) | A kind of air-conditioner outdoor unit piping system and air-conditioner outdoor unit | |
| CN110966159A (en) | Exhaust system and compressor in compressor | |
| CN206320013U (en) | A kind of full-sealed reciprocating compressor cylinder block | |
| CN105673449A (en) | Noise reduction and energy conservation piston type compressor | |
| CN209414089U (en) | Muffler structure and compressor with it | |
| WO2016127702A1 (en) | Compressor intake silencer based on multi-level tubular attenuation unit | |
| CN211370732U (en) | Double-cylinder air pressure pump body and double-cylinder compressor | |
| CN106286222B (en) | Muffler and refrigeration compressor | |
| WO2024002116A1 (en) | Piston compressor and mobile refrigerator comprising same | |
| CN210118237U (en) | Noise elimination structure of compressor | |
| CN201818348U (en) | Hydraulic muffler for excavator | |
| CN205559208U (en) | Energy -conserving piston compressor that makes an uproar falls | |
| CN104675676A (en) | Air suction structure of refrigeration compressor | |
| CN202056026U (en) | Air cylinder block for piston type refrigeration compressor | |
| CN215805019U (en) | Silencer, compressor and household appliance | |
| JP2003065231A (en) | Reciprocating hermetic compressor | |
| CN201916202U (en) | Compressor muffler device and compressor having same | |
| CN204200307U (en) | The adjustable silencing apparatus of a kind of back pressure | |
| CN203404043U (en) | Air-sucking silencer for compressor | |
| CN202326084U (en) | Air inlet muffler for air compressor of light-weight truck air brake system | |
| CN208057342U (en) | A kind of reciprocating compressor and its gas deflation assembly | |
| CN213743898U (en) | Suction muffler with honeycomb hole structure and compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Baichang Inventor after: He Jingyun Inventor after: Hu Rongzhi Inventor after: Zhang Wenfang Inventor after: Wu Dakui Inventor after: Wang Shilin Inventor before: Lin Yinkun Inventor before: Wu Dakui Inventor before: Chen Luyong Inventor before: He Jingyun Inventor before: Jiang Zhian Inventor before: Zhang Wenfang Inventor before: Wang Shilin Inventor before: He Jin Inventor before: Zhang Xiaoli Inventor before: Wang Bingyin Inventor before: Zou Min |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |