CN104833088A - Outer machine of air source water heater - Google Patents
Outer machine of air source water heater Download PDFInfo
- Publication number
- CN104833088A CN104833088A CN201510250403.6A CN201510250403A CN104833088A CN 104833088 A CN104833088 A CN 104833088A CN 201510250403 A CN201510250403 A CN 201510250403A CN 104833088 A CN104833088 A CN 104833088A
- Authority
- CN
- China
- Prior art keywords
- heat
- evaporimeter
- generating pipe
- compressor
- outer machine
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000003507 refrigerant Substances 0.000 claims abstract description 57
- 238000012545 processing Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- OOYGSFOGFJDDHP-KMCOLRRFSA-N kanamycin A sulfate Chemical group OS(O)(=O)=O.O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](N)[C@H](O)[C@@H](CO)O2)O)[C@H](N)C[C@@H]1N OOYGSFOGFJDDHP-KMCOLRRFSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Other Air-Conditioning Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an outer machine of an air source water heater. The outer machine comprises a box, a draught fan is arranged on the box, an evaporator is arranged on the back of the draught fan, one end of the evaporator is connected with a compressor on the right side, and the other side of the evaporator is connected with a throttling valve. The compressor and the throttling valve are connected with connectors of guide pipes. A baffle is arranged between the compressor and the throttling valve on one side and the evaporator on the other side, and a control system is arranged on the baffle. The evaporator comprises the S-shaped flat refrigerant guide pipes which are provided with grooves. The refrigerant guide pipes and the arch-shaped heat absorbing fins are connected in an alternate overlapping mode, the refrigerant guide pipes are connected with arch-shaped heating pipes, the contact parts of the refrigerant guide pipes and the heat absorbing fins are clamped into arch parts on one sides of the heating pipes respectively, and the heating pipes are connected with an automatic switch of a control system. The control system further comprises a central processor and a temperature monitor. The automatic switch is connected with the central processor, and the central processor is connected with the temperature monitor. The outer machine has the advantages that the heat exchanging efficiency and the energy utilization rate are high, and the evaporator does not frost at the low temperature.
Description
Technical field
The present invention relates to the outer machine of a kind of outer machine of water heater, particularly a kind of air source water heater.
Background technology
Air source water heater generally comprises indoor section and outdoor section, and wherein indoor section is water tank, and outdoor section is also called outer machine or peripheral hardware machine, is mainly used in absorbing the temperature in external environment.Prior art China and foreign countries machine part is primarily of a few part composition of casing, evaporimeter, compressor, choke valve and blower fan, it adopts the inverse circulation in Kano, and determine that entropic spueezing, refrigerant isobaricly cool by refrigerant isothermal evaporation, refrigerant steam, refrigerant liquid determines entropy four cyclic processes of expanding and forms.During work, it utilizes evaporimeter that the low temperature heat energy in air is absorbed, after refrigerant in evaporimeter and low temperature heat energy heat exchange, isothermal evaporation forms refrigerant steam, compressor sucks refrigerant steam and the cold media gas being compressed into HTHP enters in condenser and cools, the heat that in cooling procedure, refrigerant carries and cold water carry out exchange heat, finally, refrigerant completes in choke valve to be determined to get back in evaporimeter after entropy expands to repeat with cocycle, thus realizes utilizing air-source its heat energy to be passed to the heating of cold water realization to cold water.But when winter makes outdoor temperature is lower, evaporimeter particularly easily frosting on heat absorbing fins, the gap between heat absorbing fins is blocked by frost, whole evaporimeter can be frozen into ice cube after unit works long hours, energy consumption increases, and heat absorption efficiency is sharply declined, and final thermal conversion efficiency is zero.In prior art, the refrigerant conduit of evaporimeter is pipe, pipe is attached thereto through the through hole on heat absorbing fins, and cause the contact surface of pipe and heat absorbing fins very little, heat transfer effect is undesirable, technology is separately had to adopt assisted heating device to reach the object of defrosting, but existing defrosting equipment is only arrange heating tape one-sided, heating tape itself is little with refrigerant catheter contact surface, causes defrosting effect poor, energy utilization rate is low, greatly reduces the operating efficiency of water heater.
Summary of the invention
The object of the invention is to, a kind of outer machine of air source water heater is provided.Refrigerant conduit of the present invention and heat-generating pipe and heat absorbing fins contact area large, there is higher thermal conversion efficiency and energy utilization rate, and the frosting of evaporimeter low temperature can be avoided.
Technical scheme of the present invention: a kind of outer machine of air source water heater, include casing, casing front left side is provided with blower fan, evaporimeter is provided with in the casing at blower fan back, evaporimeter one end is connected with the compressor on the right side of box house, and opposite side is connected with the choke valve on compressor side, and compressor and choke valve are connected with the catheter interface in casing outer right wall respectively, compressor and be provided with baffle plate between choke valve and evaporimeter, baffle plate is provided with control system; Wherein said evaporimeter includes the flat-shaped refrigerant conduit of S type, refrigerant conduit is provided with groove, refrigerant conduit is connected in alternately laminated mode with arc heat absorbing fins, refrigerant conduit is also connected with arc heat-generating pipe, the contact site of refrigerant conduit and heat absorbing fins snaps in the bow portion of heat-generating pipe side respectively, heat-generating pipe is connected with the automatic switch of control system, control system also includes central processing unit and temperature monitor, automatic switch is connected with central processing unit, and central processing unit is connected with temperature monitor.
The outer machine of aforesaid a kind of air source water heater, the spacing between described adjacent two heat-generating pipes is 2-3cm.
The outer machine of aforesaid a kind of air source water heater, described heat-generating pipe is located at the windward side of evaporimeter when blower fan works.
The outer machine of aforesaid a kind of air source water heater, on described heat-generating pipe, exposed aerial part is coated with watertight composition.
Beneficial effect of the present invention: the present invention is by being arranged to flat by refrigerant conduit, heat absorbing fins is arranged to arc, alternately laminated mode is adopted to arrange between refrigerant conduit and heat absorbing fins, considerably increase the contact area between refrigerant conduit and heat absorbing fins, and on refrigerant conduit, groove is set, increase the contact area of refrigerant conduit and air, improve the heat exchange efficiency of evaporimeter, the present invention simultaneously is also provided with heat-generating pipe on refrigerant conduit, heat-generating pipe is arc design, the contact site of refrigerant conduit and heat absorbing fins is stuck in the bow portion of heat-generating pipe side respectively, add the contact area of heat-generating pipe and refrigerant conduit, improve the rate of heat exchange between heat-generating pipe and refrigerant conduit, certainly the energy utilization rate of heat-generating pipe is also improved, heat-generating pipe two ends are connected with control system in addition, the automatic switch of temperature monitor and control heat-generating pipe circuit is provided with in control system, temperature monitor and being connected by wire between automatic switch with central processing unit, control system controls heat-generating pipe energising intensification when the temperature of the surroundings is low, ensure that environment temperature is higher than frosting temperature, avoid evaporimeter frosting.Experiment shows, by adopting above technical scheme, make the present invention when hot-cast socket power ascension 70W, the thermal efficiency adds 25%, and the thermal efficiency of the outer machine of air source water heater is promoted to the highest by 3.5 from 2.6 of prior art, when the present invention to be connected with water tank use time, to heat 100L water, this large bright employing 75 formula compressor of the heating-up temperature that in same time, prior art adopts 95 formula compressors to reach can reach, and improves efficiency, has saved energy consumption.In addition, spacing between two heat-generating pipes is 2-3cm, the thermal conversion efficiency of heat-generating pipe and the comprehensive good cost performance of economic indicator, if because spacing is too large, the heat of heat-generating pipe can reach the object comprehensively covering evaporimeter, and the thermal efficiency is not high, if spacing is too little, heat-generating pipe use amount can be caused to increase, add cost; Heat-generating pipe is located at the windward side of evaporimeter when blower fan works, and improves the energy utilization rate of heat-generating pipe, has good comprehensive benefit.In addition, the exposed aerial part of heat-generating pipe of the present invention applies watertight composition, can quick landing when rainwater drops on heat-generating pipe, avoid rainwater to attach on heat-generating pipe, antifrost better effects if.In sum, the present invention has that thermal conversion efficiency is high, energy utilization rate is high, and the beneficial effect of evaporimeter low temperature frost-free.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is the structural representation of evaporimeter;
Accompanying drawing 3 is that the A-A of accompanying drawing 2 is to sectional view;
Accompanying drawing 4 is Control system architecture schematic diagram;
Description of reference numerals: 1-casing, 2-refrigerant conduit, 3-heat-generating pipe, 4-catheter interface, 5-heat absorbing fins, 6-blower fan, 7-evaporimeter, 8-compressor, 9-choke valve, 10-control system, 11-baffle plate, 12-temperature monitor, 13-central processing unit, 14-automatic switch, 15-groove, 16-bow portion.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation limited the present invention.
Embodiments of the invention: a kind of outer machine of air source water heater, as shown in accompanying drawing 1-4, include casing 1, casing 1 front left side is provided with blower fan 6, evaporimeter 7 is provided with in the casing 1 at blower fan 6 back, evaporimeter 7 one end is connected with the compressor 8 of casing 1 inner right side, opposite side is connected with the choke valve 9 on compressor 8 side, compressor 8 and choke valve 9 are connected with the catheter interface 4 in casing 1 outer right wall respectively, compressor 8 and be provided with baffle plate 11 between choke valve 9 and evaporimeter 7, baffle plate 11 is provided with control system 10; Wherein said evaporimeter 7 includes the flat-shaped refrigerant conduit 2 of S type, refrigerant conduit 2 is provided with groove 15, refrigerant conduit 2 is connected in alternately laminated mode with arc heat absorbing fins 5, refrigerant conduit 2 is also connected with arc heat-generating pipe 3, refrigerant conduit 2 snaps in the bow portion 16 of heat-generating pipe 3 side respectively with the contact site of heat absorbing fins 5, heat-generating pipe 3 is connected with the automatic switch 14 of control system 10, control system 10 also includes central processing unit 13 and temperature monitor 12, automatic switch 14 is connected with central processing unit 13, and central processing unit 13 is connected with temperature monitor 12.
Spacing between described adjacent two heat-generating pipes 3 is 2-3cm.
Described heat-generating pipe 3 is located at the windward side of evaporimeter 7 when blower fan 6 works.
On described heat-generating pipe 3, exposed aerial part is coated with watertight composition.
When the present invention works, blower fan 6 rotates, air is driven to flow through the evaporimeter 7 of its behind, evaporimeter 7 absorbs the low temperature heat energy in air come in, after refrigerant in evaporimeter 7 and low temperature heat energy heat exchange, isothermal evaporation forms refrigerant steam, compressor 8 sucks refrigerant steam and the cold media gas being compressed into HTHP enters in condenser and cools, the heat that in cooling procedure, refrigerant carries and cold water carry out exchange heat, finally, refrigerant completes in choke valve 9 to be determined to get back in evaporimeter 7 after entropy expands to repeat with cocycle, thus realize utilizing air-source its heat energy to be passed to the heating of cold water realization to cold water.In order to reach the high thermal conversion efficiency of outer machine and avoid the object of frosting, refrigerant conduit 2 is made flat by the present invention, and groove 15 is set thereon, separately heat absorbing fins 5 is done archwise, refrigerant conduit 2 and heat absorbing fins 5 adopt the alternately laminated mode of placing one deck heat absorbing fins 5 between every two-layer refrigerant conduit 2 to place, considerably increase the contact area of refrigerant conduit 2 and heat absorbing fins 5, improve the heat exchange efficiency of evaporimeter 7, and arc heat-generating pipe 3 is installed on refrigerant conduit 2, refrigerant conduit 2 is stuck in the bow portion 16 of heat-generating pipe 3 side respectively with the contact site of heat absorbing fins 5, add the contact area of heat-generating pipe 3 and refrigerant conduit 2, improve the heat exchange efficiency between heat-generating pipe 3 and refrigerant conduit 2, in addition, heat-generating pipe 3 two ends are connected through wire with the automatic switch 14 in control system 10, automatic switch 14 is connected with central processing unit 13 through wire with temperature monitor 12, when temperature monitor 12 detects environment temperature at 5 DEG C-10 DEG C, signal is transported to central processing unit 13, then central processing unit 13 controls automatic switch 14 and closes, the electric current at conducting heat-generating pipe 3 two ends, heat-generating pipe 3 is energized heat up, improve the environment temperature around evaporimeter 7, avoid evaporimeter 7 frosting, heat of high temperature directly passes to refrigerant by heat-generating pipe 3 and the contact surface of refrigerant conduit 2 simultaneously, improve evaporimeter 7 thermal conversion efficiency at low ambient temperatures.
As preferably, distance between described adjacent two heat-generating pipes 3 is 2-3cm, the use of heat-generating pipe 3 is reduced again while maximum using heat-generating pipe 3, have good comprehensive benefit, if because spacing is too large, the heat of heat-generating pipe can reach the object comprehensively covering evaporimeter, the thermal efficiency is not high, if spacing is too little, heat-generating pipe use amount can be caused to increase, add cost.
As preferably, described heat-generating pipe 3 is installed on blower fan 6 when working, and the windward side of evaporimeter 7, enables the hot-air around heat-generating pipe 3 and refrigerant conduit 2 and heat absorbing fins 5 comprehensive engagement, improve the heat utilization efficiency of evaporimeter 7.
As preferably, the exposed aerial part of heat-generating pipe 3 applies one deck watertight composition, can quick landing when rainwater drops on heat-generating pipe 3, avoid rainwater to attach on heat-generating pipe 3, antifrost better effects if.
Claims (4)
1. the outer machine of an air source water heater, it is characterized in that: include casing (1), casing (1) front left side is provided with blower fan (6), evaporimeter (7) is provided with in the casing (1) at blower fan (6) back, evaporimeter (7) one end is connected with the compressor (8) of casing (1) inner right side, opposite side is connected with the choke valve (9) on compressor (8) side, compressor (8) and choke valve (9) are connected with the catheter interface (4) in casing (1) outer right wall respectively, compressor (8) and be provided with baffle plate (11) between choke valve (9) and evaporimeter (7), baffle plate (11) is provided with control system (10), wherein said evaporimeter (7) includes the flat-shaped refrigerant conduit (2) of S type, refrigerant conduit (2) is provided with groove (15), refrigerant conduit (2) is connected in alternately laminated mode with arc heat absorbing fins (5), refrigerant conduit (2) is also connected with arc heat-generating pipe (3), refrigerant conduit (2) snaps in the bow portion (16) of heat-generating pipe (3) side respectively with the contact site of heat absorbing fins (5), heat-generating pipe (3) is connected with the automatic switch (14) of control system (10), control system (10) also includes central processing unit (13) and temperature monitor (12), automatic switch (14) is connected with central processing unit (13), central processing unit (13) is connected with temperature monitor (12).
2. the outer machine of a kind of air source water heater according to claim 1, is characterized in that: the spacing between described adjacent two heat-generating pipes (3) is 2-3cm.
3. the outer machine of a kind of air source water heater according to claim 1 and 2, is characterized in that: described heat-generating pipe (3) is located at the windward side of evaporimeter (7) when blower fan (6) works.
4. the outer machine of a kind of air source water heater according to claim 1 and 2, is characterized in that: the upper exposed aerial part of described heat-generating pipe (3) is coated with watertight composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250403.6A CN104833088B (en) | 2015-05-18 | 2015-05-18 | A kind of outer machine of air source water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250403.6A CN104833088B (en) | 2015-05-18 | 2015-05-18 | A kind of outer machine of air source water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104833088A true CN104833088A (en) | 2015-08-12 |
| CN104833088B CN104833088B (en) | 2018-05-18 |
Family
ID=53811146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510250403.6A Expired - Fee Related CN104833088B (en) | 2015-05-18 | 2015-05-18 | A kind of outer machine of air source water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104833088B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205074A (en) * | 1996-10-08 | 1999-01-13 | 株式会社杰克塞尔 | Heat exchanger and method of manufacturing thereof |
| CN101029807A (en) * | 2006-02-28 | 2007-09-05 | 株式会社电装 | Heat exchanger |
| JP2010121847A (en) * | 2008-11-19 | 2010-06-03 | Hitachi Appliances Inc | Air conditioner |
| CN201548003U (en) * | 2009-11-29 | 2010-08-11 | 程启进 | Defrosting evaporator with planar heating unit |
| CN101936626A (en) * | 2010-04-08 | 2011-01-05 | 合肥美的荣事达电冰箱有限公司 | Fin type evaporator and refrigerator thereof |
| CN102374702A (en) * | 2011-08-30 | 2012-03-14 | 黄山市广远光电科技有限公司 | Ultralow-temperature air energy heat pump set and using method thereof |
| CN103245133A (en) * | 2013-05-03 | 2013-08-14 | 杭州临安龙成能源科技有限公司 | Defrosting condenser for outdoor unit of heating device and defrosting control method of defrosting condenser |
| JP2013203314A (en) * | 2012-03-29 | 2013-10-07 | Mitsubishi Heavy Ind Ltd | Vehicle exterior heat exchanger equipped with heater and air conditioner for vehicle with the same |
| CN203454301U (en) * | 2013-07-30 | 2014-02-26 | 广东美的制冷设备有限公司 | Air conditioner outdoor unit capable of preventing flammable refrigerants from being accumulated |
| CN203464822U (en) * | 2012-04-26 | 2014-03-05 | 三菱电机株式会社 | Heat exchanger and air conditioner |
| CN103968614A (en) * | 2013-02-05 | 2014-08-06 | 海尔集团公司 | Evaporator and refrigerating unit utilizing same |
| CN204100538U (en) * | 2014-08-04 | 2015-01-14 | 广东美的集团芜湖制冷设备有限公司 | Heat-exchanging component and air conditioner |
| CN204665668U (en) * | 2015-05-18 | 2015-09-23 | 都匀市嘉予新能源科技发展有限公司 | The outer machine of the air source water heater that a kind of thermal conversion efficiency is high |
-
2015
- 2015-05-18 CN CN201510250403.6A patent/CN104833088B/en not_active Expired - Fee Related
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205074A (en) * | 1996-10-08 | 1999-01-13 | 株式会社杰克塞尔 | Heat exchanger and method of manufacturing thereof |
| CN101029807A (en) * | 2006-02-28 | 2007-09-05 | 株式会社电装 | Heat exchanger |
| JP2010121847A (en) * | 2008-11-19 | 2010-06-03 | Hitachi Appliances Inc | Air conditioner |
| CN201548003U (en) * | 2009-11-29 | 2010-08-11 | 程启进 | Defrosting evaporator with planar heating unit |
| CN101936626A (en) * | 2010-04-08 | 2011-01-05 | 合肥美的荣事达电冰箱有限公司 | Fin type evaporator and refrigerator thereof |
| CN102374702A (en) * | 2011-08-30 | 2012-03-14 | 黄山市广远光电科技有限公司 | Ultralow-temperature air energy heat pump set and using method thereof |
| JP2013203314A (en) * | 2012-03-29 | 2013-10-07 | Mitsubishi Heavy Ind Ltd | Vehicle exterior heat exchanger equipped with heater and air conditioner for vehicle with the same |
| CN203464822U (en) * | 2012-04-26 | 2014-03-05 | 三菱电机株式会社 | Heat exchanger and air conditioner |
| CN103968614A (en) * | 2013-02-05 | 2014-08-06 | 海尔集团公司 | Evaporator and refrigerating unit utilizing same |
| CN103245133A (en) * | 2013-05-03 | 2013-08-14 | 杭州临安龙成能源科技有限公司 | Defrosting condenser for outdoor unit of heating device and defrosting control method of defrosting condenser |
| CN203454301U (en) * | 2013-07-30 | 2014-02-26 | 广东美的制冷设备有限公司 | Air conditioner outdoor unit capable of preventing flammable refrigerants from being accumulated |
| CN204100538U (en) * | 2014-08-04 | 2015-01-14 | 广东美的集团芜湖制冷设备有限公司 | Heat-exchanging component and air conditioner |
| CN204665668U (en) * | 2015-05-18 | 2015-09-23 | 都匀市嘉予新能源科技发展有限公司 | The outer machine of the air source water heater that a kind of thermal conversion efficiency is high |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104833088B (en) | 2018-05-18 |
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Address after: 558000 No. 2, luyinhu Industrial Park, Duyun City, Qiannan Buyei and Miao Autonomous Prefecture, Guizhou Province Patentee after: Guizhou Jiayu new energy Co.,Ltd. Address before: 558000 No. 2-904, unit 2, Huitong Jiayuan, No. 67, Jianjiang North Road, Duyun City, Qiannan Buyei and Miao Autonomous Prefecture, Guizhou Province Patentee before: DUYUN JIAYU NEW ENERGY TECHNOLOGY DEVELOPMENT CO.,LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: External machine of air source water heater Effective date of registration: 20220124 Granted publication date: 20180518 Pledgee: Duyun RONGTONG Rural Bank Co.,Ltd. Pledgor: Guizhou Jiayu new energy Co.,Ltd. Registration number: Y2022520000005 |
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Granted publication date: 20180518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |