CN112303945B - Water chilling unit used in lithium battery manufacturing process - Google Patents
Water chilling unit used in lithium battery manufacturing process Download PDFInfo
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- CN112303945B CN112303945B CN202011058045.6A CN202011058045A CN112303945B CN 112303945 B CN112303945 B CN 112303945B CN 202011058045 A CN202011058045 A CN 202011058045A CN 112303945 B CN112303945 B CN 112303945B
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- heat conduction
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- shaped heat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 56
- 239000003507 refrigerant Substances 0.000 claims abstract description 49
- 238000001035 drying Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a water chilling unit used in the manufacturing process of a lithium battery, belonging to the field of refrigeration, the water chilling unit used in the manufacturing process of the lithium battery comprises a water chilling machine, the water chilling machine comprises a condenser, a compressor, an expansion valve, an evaporator, a water pump, a water tank and a dry filter, the water tank is fixedly connected to the evaporator through the water pump, the evaporator is connected with the condenser through the expansion valve and the dry filter, the evaporator is connected with the condenser through the compressor, the condenser is provided with a condenser shell, the upper end surface inside the condenser shell is fixedly connected with a plurality of groups of cooling coiled pipes which are uniformly distributed on the condenser shell, the plurality of groups of cooling coiled pipes are internally provided with a first U-shaped heat conduction cavity, the condenser shell is internally provided with a refrigerant inlet and a refrigerant outlet, the first U-shaped heat conduction cavity at the uppermost end is communicated with the refrigerant inlet, and the adjacent groups of the first U-shaped heat conduction cavities are communicated pairwise, the first U-shaped heat conduction cavity at the lowermost end is communicated with a refrigerant outlet, a refrigerant inlet is communicated with a compressor, and a refrigerant outlet is communicated with a drying filter.
Description
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to a water chilling unit used in a lithium battery manufacturing process.
Background
When the refrigerant of the water chiller flows back to the system, the liquid refrigerant in the evaporator absorbs the heat in the water and begins to evaporate, so that a certain temperature difference is formed between the refrigerant and the water, the liquid refrigerant is completely evaporated and changed into a gas state, then the gas refrigerant is sucked and compressed by the compressor, the gas refrigerant releases the heat through the condenser, condenses into a liquid, is throttled by the thermostatic expansion valve and then is changed into a low-temperature low-pressure refrigerant, and then the low-temperature low-pressure refrigerant enters the evaporator, so that the refrigerant recycling process is completed;
and the condenser in traditional cold water machine adopts temperature sensor to be used for controlling temperature in the condenser pipe mostly, has certain moisture content impurity in most condensers, when ambient temperature is lower, makes the interior moisture content impurity of condenser pipe freeze and damage, in case the condenser pipe freezes, the condenser machine breaks down, its work efficiency of greatly reduced, and life, current cold water machine often outputs the refrigerant with fixed power simultaneously, and the output efficiency of refrigerant is uncontrollable.
Disclosure of Invention
The invention aims to provide a water chilling unit used in a lithium battery manufacturing process so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a water chilling unit used in the manufacturing process of a lithium battery comprises a water chiller, wherein the water chiller comprises a condenser, a compressor, an expansion valve, an evaporator, a water pump, a water tank and a drying filter, the water tank is fixedly connected to the evaporator through the water pump, the evaporator is connected with the condenser through the expansion valve and the drying filter, the evaporator is connected with the condenser through the compressor, the condenser is provided with a condenser shell, a plurality of groups of cooling reelpipes are fixedly connected to the condenser shell, the plurality of groups of cooling reelpipes are uniformly distributed on the condenser shell, a first U-shaped heat conduction cavity is arranged in each group of cooling reelpipes, a refrigerant inlet and a refrigerant outlet are arranged in the condenser shell, the first U-shaped heat conduction cavity at the uppermost end is communicated with the refrigerant inlet, the first U-shaped heat conduction cavity at the lowermost end is communicated with the refrigerant outlet, and the refrigerant inlet is communicated with the compressor, the refrigerant outlet is communicated with the drying filter.
Preferably, a plurality of groups of cooling coils are arranged on the condenser shell, first elastic steel wires are arranged in the cooling coils, the natural state of the first elastic steel wires is a curling state, second elastic steel wires are arranged in the cooling coils, and the natural state of the second elastic steel wires is an arc-shaped bending state.
Preferably, a second U-shaped heat conduction cavity is arranged in the cooling reel pipe, the upper end and the lower end of the first U-shaped heat conduction cavity are communicated with the second U-shaped heat conduction cavity, an air pressure automatic valve is fixedly connected at the joint of the upper end and the lower end of the first U-shaped heat conduction cavity, a first one-way valve is fixedly connected at the joint of the upper end of the first U-shaped heat conduction cavity and the upper end of the second U-shaped heat conduction cavity, a second one-way valve is fixedly connected at the joint of the lower end of the first U-shaped heat conduction cavity and the lower end of the second U-shaped heat conduction cavity, and the first one-way valve, the second one-way valve and the second U-shaped heat conduction cavity are matched.
Preferably, a water storage tank is arranged in the condenser shell, the cooling coiled pipe is arranged on the upper end face in the condenser shell, the water storage tank is arranged on the lower end face in the condenser shell, and the second U-shaped heat conduction cavity is immersed in water in the water storage tank after being straight.
Preferably, the pneumatic automatic valve comprises a limiting block, a spring and a flow limiting block, the limiting block is fixedly connected to the inner wall of the middle section of the U-shaped pipeline of the first U-shaped heat conduction cavity, and two ends of the spring are respectively and fixedly connected to the limiting block and the flow limiting block.
The invention has the technical effects and advantages that: use cooling water set to adopt rolling formula heat pipe in the lithium cell manufacture process, the device during stop work, device automatic winding, the device is ingenious, extrude the inside condensing agent of evacuation heat pipe through the rolling, if contain certain moisture content impurity in the condensing agent, to preventing that moisture content impurity from freezing, the jam has produced good effect, the device has adopted two kinds of refrigeration effects of forced air cooling with water cooling simultaneously, under the low pressure condition, utilize the ambient air to flow and realize the cooling, under the high pressure condition, through rising the cooling reelpipe in the catch basin, forced air cooling this moment, water-cooling goes on simultaneously, in order to satisfy refrigerant refrigeration effect.
Drawings
FIG. 1 is a diagram of the distribution of the heat pipes inside the cooling coil according to the present invention;
FIG. 2 is a schematic view of a cooling coil in cross-section according to the present invention;
FIG. 3 is a schematic cross-sectional view of a cooling coil according to the present invention;
FIG. 4 is a schematic view of a second elastic steel wire according to the present invention;
FIG. 5 is a schematic view of a first elastic steel wire according to the present invention;
FIG. 6 is a schematic diagram of air cooling refrigeration according to the present invention;
FIG. 7 is a schematic view of air cooling and water cooling according to the present invention;
FIG. 8 is a block diagram of a cooling coil of the present invention under various conditions;
FIG. 9 is a schematic diagram of the operation of the water chiller of the present invention;
FIG. 10 is an enlarged view of a portion A of FIG. 1 according to the present invention.
In the figure: 101 cooling coil, 102 first elastic steel wire, 103 first U-shaped heat conducting cavity, 104 second U-shaped heat conducting cavity, 105 second elastic steel wire, 106 condenser shell, 107 refrigerant inlet, 108 refrigerant outlet, 201 first one-way valve, 202 second one-way valve, 203 air pressure automatic valve, 204 water storage tank, 301 condenser, 302 compressor, 303 expansion valve, 304 evaporator, 305 water pump, 306 water tank, 307 drying filter, 401 limiting block, 402 spring, 403 limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a water chilling unit used in the manufacturing process of a lithium battery as shown in figures 1-10, which comprises a water chiller;
specifically, the water chiller comprises a condenser 301, a compressor 302, an expansion valve 303, an evaporator 304, a water pump 305, a water tank 306 and a dry filter 307, wherein the water tank 306 is fixedly connected to the evaporator 304 through the water pump 305, the evaporator 304 is connected to the condenser 301 through the expansion valve 303 and the dry filter 307, the evaporator 304 is connected to the condenser 301 through the compressor 302, the condenser 301 is provided with a condenser shell 106, a plurality of groups of cooling coils 101 are fixedly connected to the condenser shell 106, the plurality of groups of cooling coils 101 are uniformly distributed on the condenser shell 106, a first U-shaped heat conduction cavity 103 is arranged in each group of cooling coils 101, a refrigerant inlet 107 and a refrigerant outlet 108 are arranged in the condenser shell 106, the first U-shaped heat conduction cavity 103 at the uppermost end is communicated with the refrigerant inlet 107, the first U-shaped heat conduction cavity 103 at the lowermost end is communicated with the refrigerant outlet 108, and the refrigerant inlet 107 is communicated with the compressor 302, the refrigerant outlet 108 communicates with a dry filter 307.
Specifically, a plurality of groups of cooling coils 101 are arranged on the condenser shell 106, a first elastic steel wire 102 is arranged in the cooling coils 101, the first elastic steel wire 102 is in a curling state in a natural state, a second elastic steel wire 105 is arranged in the cooling coils 101, and the second elastic steel wire 105 is in an arc-shaped bending state in a natural state.
Specifically, be equipped with second U type heat conduction chamber 104 in the cooling reelpipe 101, the lower extreme all communicates with each other with second U type heat conduction chamber 104 on first U type heat conduction chamber 103, lower extreme junction fixedly connected with atmospheric pressure automatic valve 203 on first U type heat conduction chamber 103, first U type heat conduction chamber 103 and second U type heat conduction chamber 104 upper end junction fixedly connected with first check valve 201, first U type heat conduction chamber 103 and second U type heat conduction chamber 104 lower extreme junction fixedly connected with second check valve 202, first check valve 201, second check valve 202 and second U type heat conduction chamber 104 phase-match.
Specifically, a water storage tank 204 is arranged in the condenser shell 106, the cooling coil 101 is arranged on the upper end face inside the condenser shell 106, the water storage tank 204 is arranged on the lower end face inside the condenser shell 106, and the second U-shaped heat conduction cavity 104 is immersed into water in the water storage tank 204 after being straight.
Specifically, the pneumatic automatic valve 203 comprises a limiting block 401, a spring 402 and a flow limiting block 403, the limiting block 401 is fixedly connected to the inner wall of the middle section of the U-shaped pipeline of the first U-shaped heat conducting cavity 103, and two ends of the spring 402 are respectively and fixedly connected to the limiting block 401 and the flow limiting block 403.
The working principle is as follows:
when the device is idle, because the first elastic steel wire 102 is arranged in the cooling coil pipe 101, the first elastic steel wire 102 naturally curls to drive the cooling coil pipe 101 to curl, when a user starts a condenser, a refrigerant is introduced into the first U-shaped heat conduction cavity 103 through the refrigerant inlet 107, the cooling coil pipe 101 is driven to naturally open under the action of pressure, because the second elastic steel wire 105 is arranged in the cooling coil pipe 101, when the cooling coil pipe 101 is straightened, the second elastic steel wire 105 naturally bends towards two sides, so that the cooling coil pipe 101 is kept fixed, the air cooling heat conduction area of the cooling coil pipe is increased, after the device is stopped, because the first U-shaped heat conduction cavity 103 and the second U-shaped heat conduction cavity 104 lose the air pressure effect, at the moment, the cooling coil pipe 101 is driven by the first elastic steel wire 102 to naturally curl, meanwhile, the second elastic steel wire 105 keeps horizontal, when the device is used in winter, because the cooling coil pipe 101 naturally curls, pressing the water in the first U-shaped heat conduction cavity 103 and the second U-shaped heat conduction cavity 104 to discharge, placing the cooling coil pipe 101 for freezing, starting the device, when ice slag is blocked in the device, the cooling coil pipe 101 loses the air pressure effect and naturally curls, crushing the ice slag, and recovering the work after air pressure is recovered;
meanwhile, a second U-shaped heat conduction cavity 104 is additionally arranged in the device, a first one-way valve 201 and a second one-way valve 202 are arranged on the second U-shaped heat conduction cavity 104, an air pressure automatic valve 203 is arranged at the joint of the upper end and the lower end in the first U-shaped heat conduction cavity 103, the air pressure automatic valve 203 is opened when the air pressure is smaller than a certain air pressure and is closed when the air pressure is higher than the certain air pressure, the lowest limiting pressure of the first one-way valve 201 which is opened is larger than the maximum limiting pressure of the air pressure automatic valve 203 which is closed, when the input power of the refrigerant is smaller, namely the input pressure value is smaller than the maximum pressure value of the air pressure automatic valve 203 which is closed, at the moment, the first one-way valve 201 is closed, at the moment, the refrigerant is input through a refrigerant inlet 107 and passes through the first U-shaped heat conduction cavity 103 and is exhausted from a refrigerant outlet 108, at the section 103 of the first U-shaped heat conduction cavity 103, and the tail end of the second U-shaped heat conduction cavity 104 is naturally curled; when the input power of the refrigerant is large, namely the input pressure value is larger than the maximum pressure value of the closed air pressure automatic valve 203, at the moment, the air pressure automatic valve 203 is closed, the refrigerant enters the second U-shaped heat conduction cavity 104 through the first one-way valve 201, enters the first U-shaped heat conduction cavity 103 through the second one-way valve 202 and is discharged from the refrigerant outlet 108, at the moment, the cooling coil pipe 101 is completely opened, the section of the second U-shaped heat conduction cavity 104 is located in the water storage tank 204, the cooling coil pipe 101 is subjected to air cooling through the section of the first U-shaped heat conduction cavity 103, and water cooling is performed through the section of the second U-shaped heat conduction cavity 104, so that the output temperature requirement of the refrigerant is controlled, and meanwhile, the output efficiency of the refrigerant is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a use cooling water set in lithium cell manufacturing process, includes the cooling water machine, its characterized in that: the water chiller comprises a condenser (301), a compressor (302), an expansion valve (303), an evaporator (304), a water pump (305), a water tank (306) and a drying filter (307), wherein the water tank (306) is fixedly connected to the evaporator (304) through the water pump (305), the evaporator (304) is connected to the condenser (301) through the expansion valve (303) and the drying filter (307), the evaporator (304) is connected to the condenser (301) through the compressor (302), the condenser (301) is provided with a condenser shell (106), the inner upper end surface of the condenser shell (106) is fixedly connected with a plurality of groups of cooling coil pipes (101), the plurality of groups of cooling coil pipes (101) are uniformly distributed on the condenser shell (106), and are provided with a first U-shaped heat conducting cavity (103) in the cooling coil pipe (101), a refrigerant inlet (107) and a drying filter (307) are arranged in the condenser shell (106), The condenser comprises a refrigerant outlet (108), wherein the uppermost U-shaped heat conduction cavity (103) is communicated with a refrigerant inlet (107), a plurality of groups of adjacent U-shaped heat conduction cavities (103) are communicated pairwise, the lowermost U-shaped heat conduction cavity (103) is communicated with the refrigerant outlet (108), the refrigerant inlet (107) is communicated with a compressor (302), the refrigerant outlet (108) is communicated with a drying filter (307), a plurality of groups of cooling coil pipes (101) are arranged on a condenser shell (106), first elastic steel wires (102) are arranged in the cooling coil pipes (101), the natural state of the first elastic steel wires (102) is in a curled state, second elastic steel wires (105) are uniformly arranged in the cooling coil pipes (101), and the natural state of the second elastic steel wires (105) is in an arc-shaped bent state.
2. The water chilling unit used in the lithium battery manufacturing process according to claim 1, wherein: all be equipped with second U type heat conduction chamber (104) in each cooling reelpipe (101), the lower extreme all communicates with each other with second U type heat conduction chamber (104) on first U type heat conduction chamber (103), the lower extreme junction fixedly connected with atmospheric pressure automatic valve (203) on first U type heat conduction chamber (103), first U type heat conduction chamber (103) and second U type heat conduction chamber (104) upper end junction fixedly connected with first check valve (201), first U type heat conduction chamber (103) and second U type heat conduction chamber (104) lower extreme junction fixedly connected with second check valve (202), first check valve (201), second check valve (202) and second U type heat conduction chamber (104) phase-match.
3. The water chilling unit used in the lithium battery manufacturing process according to claim 2, wherein: the condenser is characterized in that a water storage groove (204) is formed in the condenser shell (106), the cooling coil (101) is arranged on the upper end face inside the condenser shell (106), the water storage groove (204) is arranged on the lower end face inside the condenser shell (106), and the second U-shaped heat conduction cavity (104) is immersed into water in the water storage groove (204) after being straight.
4. The water chilling unit used in the lithium battery manufacturing process according to claim 2, wherein: the air pressure automatic valve (203) comprises a limiting block (401), a spring (402) and a flow limiting block (403), the limiting block (401) is fixedly connected to the inner wall of the middle section of the U-shaped pipeline of the first U-shaped heat conducting cavity (103), and two ends of the spring (402) are fixedly connected to the limiting block (401) and the flow limiting block (403) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058045.6A CN112303945B (en) | 2020-09-30 | 2020-09-30 | Water chilling unit used in lithium battery manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058045.6A CN112303945B (en) | 2020-09-30 | 2020-09-30 | Water chilling unit used in lithium battery manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112303945A CN112303945A (en) | 2021-02-02 |
| CN112303945B true CN112303945B (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011058045.6A Active CN112303945B (en) | 2020-09-30 | 2020-09-30 | Water chilling unit used in lithium battery manufacturing process |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0652372B1 (en) * | 1993-10-27 | 1998-07-01 | Mitsubishi Denki Kabushiki Kaisha | Reversible rotary compressor |
| CN1924492B (en) * | 2005-08-31 | 2010-12-29 | 海尔集团公司 | Refrigerator with flexible spiral ice-transportation device |
| CN101324389B (en) * | 2007-06-13 | 2011-11-09 | 博西华家用电器有限公司 | Condenser combination and household electrical appliance using the same |
| GB0802486D0 (en) * | 2008-02-12 | 2008-03-19 | Gilbert Patrick C | Warm water economy device |
| CN103411356A (en) * | 2013-08-29 | 2013-11-27 | 广东奥马电器股份有限公司 | Double-effect condenser and refrigerator |
| CN106679240A (en) * | 2015-11-11 | 2017-05-17 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger and heat exchange pipes |
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Effective date of registration: 20240301 Address after: 518000, 4th Floor, Building 3, Tangtou Third Industrial Zone, Tangtou Community, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: YIXIANG INTELLIGENT EQUIPMENT (SHENZHEN) Co.,Ltd. Country or region after: China Address before: No. 2402, Unit 1, Building 1, Hongfa Century City, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province, 518000 Patentee before: Luo Zhaowen Country or region before: China Patentee before: Wu Shuijin |