CN209726625U - A kind of solar drinking-water machine integrating refrigeration and heating - Google Patents

A kind of solar drinking-water machine integrating refrigeration and heating Download PDF

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Publication number
CN209726625U
CN209726625U CN201920256693.9U CN201920256693U CN209726625U CN 209726625 U CN209726625 U CN 209726625U CN 201920256693 U CN201920256693 U CN 201920256693U CN 209726625 U CN209726625 U CN 209726625U
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China
Prior art keywords
water
pipe
heating
inlet pipe
outlet pipe
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Expired - Fee Related
Application number
CN201920256693.9U
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Chinese (zh)
Inventor
沈向阳
徐政凯
陈嘉澍
谢国琳
谢伟杰
严恢弘
翁曼娜
洪晓婷
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Zhongkai University of Agriculture and Engineering
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Zhongkai University of Agriculture and Engineering
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Priority to CN201920256693.9U priority Critical patent/CN209726625U/en
Application granted granted Critical
Publication of CN209726625U publication Critical patent/CN209726625U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of solar drinking-water machines for integrating refrigeration and heating, including water inlet pipe, inlet water solenoid valve is provided on water inlet pipe, it is connected with filter on water inlet pipe in turn, semiconductor cooler, condenser, and the heating end of water inlet pipe and semiconductor cooler connects, condenser is communicated with solar thermal collector by water inlet pipe, water inlet pipe is equipped with the first spiral heat exchange tube, solar thermal collector is connected with hot water storage tank by exit branch, hot water storage tank is communicated with warm water water tank by hot water outlet pipe, hot water tap and the second spiral heat exchange tube are provided on hot water outlet pipe, water outlet pipe is communicated on warm water water tank, warm water water tank is communicated with evaporator by connecting tube, cold water water tank is provided in evaporator, evaporator is connected to the heating end connection of semiconductor cooler by cold water outlet pipe , and the end of cold water outlet pipe is run through and is stretched out outside the semiconductor cooler.The utility model is easy to use, and energy utilization rate can be improved.

Description

A kind of solar drinking-water machine integrating refrigeration and heating
Technical field
The utility model relates to water dispenser technical field, specially a kind of solar drinking-water for integrating cold system and heating Machine.
Background technique
Water dispenser be people life in must equipment, existing general water dispenser only simultaneously have heating and refrigeration function Can, if you need to drink warm water, then needs user to pass through and be blended into cold water in the hot water to obtain warm water, or the water dispenser having can only mention For warm water, cold water cannot be provided, needs water to be placed in refrigerator so that cold water is made, cause inconvenient to use and existing Most of cold and hot water drinking machines and warm and hot drinking device use electric energy heating refrigeration, power consumption is larger, costly, and cold and hot drink Although water dispenser power consumption is small, inefficient, hot water and ice water storage capacity are few, are easy to cause that supply falls short of demand, recently as people Mouthful growth and expanding economy, also in accelerated growth, people also pay attention to new energy further and can be again the energy consumed by people The development and utilization of the raw energy, and solar energy makes main clean energy resource and renewable energy, the utilization of solar energy has pushed phase The development of pass technology;Therefore, it needs to design a using solar energy heating, and the drink of hot water, warm water and cold water can be provided simultaneously Water dispenser.
Utility model content
The utility model can provide hot water, warm water, cold in view of the above-mentioned problems of the prior art, providing one kind simultaneously Water, the energy-saving and environment-friendly solar drinking-water machine for integrating refrigeration and heating.
In order to achieve the above object, the utility model is achieved by the following technical programs: it is a kind of collect refrigeration and heating in The solar drinking-water machine of one, including solar energy power source apparatus and water inlet pipe are provided with inlet water solenoid valve on the water inlet pipe, institute It states and has been sequentially connected with filter, semiconductor cooler, condenser, and the water inlet pipe and described half by water inlet on water inlet pipe The heating end of conductor refrigerator connects, and the condenser is communicated with solar thermal collector, the water inlet pipe by water inlet pipe On be provided with the first spiral heat exchange tube, the solar thermal collector is connected with hot water storage tank, the hot water by exit branch Water tank is communicated with warm water water tank by hot water outlet pipe, and hot water tap and the second spiral shell are provided on the hot water outlet pipe Heat exchanger tube is revolved, and second spiral heat exchange tube is located at the linkage section that the hot water outlet pipe connect with warm water water tank, it is described First spiral heat exchange tube and the second spiral heat exchange tube are mutually juxtaposed, and are communicated with water outlet pipe on the warm water water tank, described Warm water tap is provided on water outlet pipe, the warm water water tank is communicated with evaporator, the evaporator by connecting tube It is inside provided with cold water water tank, the evaporator is connected by the heating end that cold water outlet pipe is connected to the semiconductor cooler, And the end of the cold water outlet pipe is run through and is stretched out outside the semiconductor cooler, the cold water water outlet pipe end is provided with cold Faucet water.
Further: further include continuous cooling device, the condenser and evaporator by reversing box respectively with the company Continuous refrigerating plant connection.
Further: the reversing box lower end is provided with and communicated with first pipe and second pipe, the first pipe and institute Evaporator connection is stated, the second pipe is connected with the condenser, and the upper end of the reversing box is provided with and communicated with third pipeline With the 4th pipeline, the third pipeline and the 4th pipeline are connect with the continuous cooling device respectively, setting in the reversing box There is tee tube, slide bar is connected on the tee tube, one end of the slide bar is run through and stretched out outside the reversing box, and passes through company Extension bar is connected with motor.
Further: the continuous cooling device include the first hose and the second hose, one end of first hose with The 4th pipeline connection, the other end of first hose are connected with the first zeolite plate, one end of second hose and institute The connection of third pipeline is stated, the other end of second hose is connected with the second zeolite plate, the first zeolite plate and the second zeolite Plate is setting up and down, and shaft is fixedly connected between the first zeolite plate and the second zeolite plate, and the shaft is connected with base electrical machinery, The shaft is mounted on the base.
Further: the base electrical machinery is connected with timer.
Further: the solar thermal collector includes vacuum rose gold tube, and the both ends of the vacuum rose gold tube are fixed respectively On fixed frame, header is installed on the vacuum rose gold tube, the water inlet pipe is connected to the header.
Further: the one end of the header far from the water inlet pipe is connect with the exit branch, and the water outlet Water outlet solenoid valve is installed on branch pipe.
Further: battery valve being installed in the connecting tube.
Further: being separately installed with heating wire and temperature sensor in the hot water storage tank and warm water water tank.
Further: the tee tube includes the first nozzle, the second nozzle, third nozzle.
The utility model has the beneficial effects that
1. compared with prior art, this water dispenser can reduce water dispenser to city by being powered using sun-generated electric power The dependence of electricity, energy conservation and environmental protection, tap water enter in solar thermal collector after the first spiral heat exchange tube is exchanged heat, can be improved too It is positive can heat collector inflow temperature, improve energy utilization rate, using solar thermal collector convert solar energy into thermal energy to water into Row heating, has used clean energy resource solar energy, energy conservation and environmental protection, the water after solar thermal collector heats enters hot water storage tank Interior, the hot water in hot water storage tank enters in warm water storage water tank after the second spiral heat exchange tube exchanges heat, in warm water water tank Warm water through connection pipe evaporator in, after evaporator heat exchange enter cold water water tank in, realize can provide simultaneously hot water, It is warm water, cold water, easy to use.
2. evaporator and condenser pass through reversing box respectively is connected with continuous cooling device, passed through by continuous cooling device The sun is able to achieve continuous cooling, energy conservation and environmental protection.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the structural schematic diagram of reversing box;
Fig. 3 is the main view of reversing box;
Fig. 4 is filter interior structural schematic diagram.
In figure: 1- water inlet pipe, 11- inlet water solenoid valve, 12- filter, 13- semiconductor cooler, 14- condenser, 15- Evaporator, 2- water inlet pipe, the first spiral heat exchange tube of 21-, 3- solar thermal collector, 31- vacuum rose gold tube, 32- fixed frame, 33- header, 4- exit branch, 41- water outlet solenoid valve, 5- hot water storage tank, 51- hot water outlet pipe, 52- hot water tap, 53- Second spiral heat exchange tube, 6- warm water water tank, 61- water outlet pipe, 62- warm water tap, 7- connecting tube, the water outlet of 71- cold water Pipe, 72- cold water tap, 8- reversing box, 81- first pipe, 82- second pipe, 83- third pipeline, the 4th pipeline of 84-, 85- tee tube, the first nozzle of 851-, the second nozzle of 852-, 853- third nozzle, 86- slide bar, 87- connecting rod, 88- motor, 9- Continuous cooling device, the first hose of 91-, the second hose of 92-, 93- the first zeolite plate, 94- the second zeolite plate, 95- pedestal electricity Machine, 96- pedestal.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one: a kind of solar energy for integrating refrigeration and heating is provided for the utility model as Figure 1-Figure 4 Water dispenser example structure schematic diagram: including solar energy power source apparatus and water inlet pipe 1, inlet water solenoid valve is provided on water inlet pipe 1 11, be sequentially connected with filter 12, semiconductor cooler 13, condenser 14 by water inlet on water inlet pipe 1, and water inlet pipe 1 with The heating end of semiconductor cooler 13 connects, and condenser 14 is communicated with solar thermal collector 3, solar energy collection by water inlet pipe 2 Hot device 3 includes vacuum rose gold tube 31, and the both ends of vacuum rose gold tube 31 are separately fixed on fixed frame 32, on vacuum rose gold tube 31 Header 33 is installed, water inlet pipe 2 is connected to header 33, and the one end of header 33 far from water inlet pipe 2 is connect with exit branch 4, And water outlet solenoid valve 41 is installed on exit branch 4, the first spiral heat exchange tube 21, solar energy heating are provided on water inlet pipe 2 Device 3 is connected with hot water storage tank 5 by exit branch 4, and hot water storage tank 5 is communicated with warm water water tank by hot water outlet pipe 51 6, hot water tap 52 and the second spiral heat exchange tube 53 are provided on hot water outlet pipe 51, and the second spiral heat exchange tube 53 is located at The linkage section that hot water outlet pipe 51 connect with warm water water tank 6, the first spiral heat exchange tube 21 and the second spiral heat exchange tube 53 are mutually Side by side, it is communicated with water outlet pipe 61 on warm water water tank 6, warm water tap 62, warm water storage are provided on water outlet pipe 61 Water tank 6 is communicated with evaporator 15 by connecting tube 7, and solenoid valve is equipped in connecting tube 7, cold water water storage is provided in evaporator 15 Case, evaporator 15 are connected to the heating end connection of semiconductor cooler 13, and the end of cold water outlet pipe 71 by cold water outlet pipe 71 End is run through and is stretched out outside semiconductor cooler 13, and 71 end of cold water outlet pipe is provided with cold water tap 72,5 He of hot water storage tank It is separately installed with heating wire and temperature sensor in warm water water tank 6, temperature sensor is installed in cold water water tank;
Solar energy power source apparatus includes solar energy photovoltaic panel, and solar energy photovoltaic panel is connected with inverter, inversion by conducting wire Device is connected with charging-discharging controller by conducting wire, and charging-discharging controller connects storage battery by conducting wire, and storage battery is respectively and water inlet Battery valve 11, semiconductor cooler 13, condenser 14, evaporator 15, water outlet solenoid valve 41, heating wire, temperature sensor are electrical Connection when work, is converted to luminous energy by solar energy photovoltaic panel and passes to charging-discharging controller by inverter after electric energy, fill After discharge controller processing then output is powered to storage battery using storage battery;
When work, tap water enters water inlet pipe 1, and enters the heating of semiconductor cooler 13 after the filtering of filter 12 Enter in solidifying cooler 14 after releasing heat behind end, into water inlet pipe 2, and it is laggard using the first spiral heat exchange tube 21 exchange heat Enter in the header 33 of solar thermal collector 3, due to the second spiral heat exchange on the first spiral heat exchange tube 21 and hot water outlet pipe 51 Pipe 53 exchanges heat, therefore utilizes the first spiral heat exchange tube 21, and the temperature of the water into solar thermal collector 3 can be improved, and improves The utilization rate of the energy, water enter the header 33 of solar thermal collector 3, absorb solar radiation using vacuum rose gold tube 31, and will Thermal energy passes to water in header 33 by heat, increases the temperature of water, and enter in hot water storage tank 5 through exit branch 4, when When needing hot water, hot water tap 52 is opened;Hot water in hot water storage tank 5 flows into warm water water storage through hot water outlet pipe 51 In case 6, before hot water flows into warm water storage water tank 6, first passes through the second spiral heat exchange tube 53 and exchange heat, keep water temperature drop laggard Enter warm water water tank 6, when needing warm water, opens warm water tap 62;Warm water in warm water water tank 6 is through connecting tube 7 Enter in the cold water water tank in evaporator 15 after being flowed into evaporator 15 and being exchanged heat, the water in cold water water tank is through cold water The refrigeration end that outlet pipe 71 enters semiconductor cooler 13 flows out after carrying out contact heat-exchanging through cold water outlet pipe 71, when needing cold water When, open cold water tap, it is easy to use so that hot water, warm water, cold water can be provided simultaneously by realizing, using solar energy plus Heat reduces the dependence to alternating current, energy conservation and environmental protection.
Insulated water tank is respectively adopted in hot water storage tank 5 and warm water water tank 6, by installing electric heating in hot water storage tank 5 Silk and temperature sensor, the water in hot water storage tank 5 automatically be heated to boiling;By installing electric heating in warm water water tank 6 Silk and temperature sensor, when the temperature of the water in warm water water tank 6 is lower than given threshold, heating wire starts to work, when The temperature of water in warm water water tank 6 reaches given threshold, and heating wire stops working, so that the temperature of the water in warm water water tank 6 Degree difference control is at 5 DEG C or so;
By installing solenoid valve in connecting tube 7, after cold water tap 72 is closed, solenoid valve can be closed with slow speed It closes, when avoiding the water in warm water water tank 6 and connecting tube 7 from carrying out hot transmitting, and making evaporator 15 and long semiconductor cooler 13 Between freeze, expend electricity.
Embodiment two: as shown in Figures 2 and 3, the difference between this embodiment and the first embodiment lies in: it further include continuous cooling dress 9 and reversing box 8 are set, 8 lower end of reversing box is provided with and communicated with first pipe 81 and second pipe 82, first pipe 81 and evaporator 15 Connection, second pipe 82 and condenser 14 connect, and are communicated with expansion valve between condenser 14 and evaporator 15, reversing box 8 it is upper End is provided with and communicated with third pipeline 83 and the 4th pipeline 84, third pipeline 83 and the 4th pipeline 84 respectively with continuous cooling device 9 It connects, tee tube 85 is provided in reversing box 8, tee tube 85 includes the first nozzle 851, the second nozzle 852, third nozzle 853, slide bar 86 is connected on tee tube 85, and one end of slide bar 86 is run through and stretched out outside reversing box 8, and connects by connecting rod 87 There is motor 88, continuous cooling device 9 includes the first hose 91 and the second hose 92, one end and the 4th pipeline 84 of the first hose 91 Connection, the other end of the first hose 91 are connected with the first zeolite plate 93, and one end of the second hose 92 is connected to third pipeline 83, The other end of second hose 92 is connected with the second zeolite plate 94, and the first zeolite plate 93 and the second zeolite plate 94 are setting up and down, and the Shaft is fixedly connected between one zeolite plate 93 and the second zeolite plate 94, shaft is connected with base electrical machinery 95, and shaft is mounted on bottom On seat 96;
When work, base electrical machinery 95 drives the first zeolite plate 93 and the second zeolite plate 94 to rotate by shaft, when the first boiling When slabstone 93 is towards the sun: it is mobile that motor 88 by connecting rod 87 and slide bar 86 drives tee tube 85, and make the second nozzle 852 with Second pipe 82 is connected to, and the first nozzle 851 is connected to the 4th pipeline 84, thus make the first zeolite plate 93 pass through reversing box 8 with it is cold Condenser 14 is connected to, and the first zeolite plate 93 absorbs heat and water vapour is desorbed, and water vapour is in order successively through the first hose 91, the 4th pipeline 84, tee tube 85, second pipe 82 enter in condenser 14, when component pressure reaches and saturation pressure corresponding to environment temperature When, vapor releases latent heat in condenser 14, enters in evaporator 15 after condensing into water through expansion valve, then recycles pedestal It is mobile that motor 95 drives tee tube 85, and is connected to the second nozzle 852 with first pipe 81, the first nozzle 851 and third pipeline 83 connections, at this point, water evaporates in evaporator 15, are steamed so that the second zeolite plate 94 be made to be connected to by reversing box 8 with evaporator 15 Water vapour in hair device 15 successively enters the second zeolite plate 94 and quilt through first pipe 81, third pipeline 83, the second hose 92 The absorption of second zeolite plate 94 reaches refrigeration effect to absorb cooled space heat;
Base electrical machinery 95 is connected with timer, and using Timer Controlling base electrical machinery 95, base electrical machinery 95 is two-way electricity Machine, using Timer Controlling base electrical machinery 95 every 94 turns of the electronic first zeolite plate 93 of six hours drive shafts and the second zeolite plate Dynamic 180 °, when the second zeolite plate 94 is towards the sun: it is mobile that tee tube 85 is driven by motor 88, and make the second nozzle 852 with Second pipe 82 is connected to, and the first nozzle 851 is connected to third pipeline 83, thus make the second zeolite plate 94 pass through reversing box 8 with it is cold Condenser 14 is connected to, and the second zeolite plate 94 absorbs heat and water vapour is desorbed, and water vapour is successively through the second hose 92, third pipeline 83, three Siphunculus 85, second pipe 82 enter in condenser 14, when component pressure reaches with saturation pressure corresponding to environment temperature, water Steam releases latent heat in condenser 14, enters in evaporator 15 after condensing into water through expansion valve, then recycles base electrical machinery 95 driving tee tubes 85 are mobile, and are connected to the second nozzle 852 with first pipe 81, and the first nozzle 851 and the 4th nozzle 84 connect It is logical, so that it is connected to the first zeolite plate 93 with evaporator 15 by reversing box 8, at this point, water evaporates in evaporator 15, evaporation Water vapour in device 15 successively enters zeolite plate 93 through first pipe 81, the 4th pipeline 84, the first hose 91 and by the first boiling Slabstone 93 adsorbs, to absorb cooling space heat, reaches continuous cooling effect.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard To belong to the protection scope of the utility model.

Claims (10)

1. a kind of solar drinking-water machine for integrating refrigeration and heating, including solar energy power source apparatus and water inlet pipe (1), described Inlet water solenoid valve (11) are provided on water inlet pipe (1), it is characterised in that: be sequentially connected on the water inlet pipe (1) by water inlet There are filter (12), semiconductor cooler (13), condenser (14), and the water inlet pipe (1) and the semiconductor cooler (13) heating end connection, the condenser (14) are communicated with solar thermal collector (3), the water inlet by water inlet pipe (2) It is provided on branch pipe (2) the first spiral heat exchange tube (21), the solar thermal collector (3) is connected with heat by exit branch (4) Water water tank (5), the hot water storage tank (5) are communicated with warm water water tank (6) by hot water outlet pipe (51), and the hot water goes out Hot water tap (52) and the second spiral heat exchange tube (53), and second spiral heat exchange tube (53) position are provided on water pipe (51) In the linkage section that the hot water outlet pipe (51) connect with warm water water tank (6), first spiral heat exchange tube (21) and second Spiral heat exchange tube (53) is mutually juxtaposed, and is communicated with water outlet pipe (61), the water outlet pipe on the warm water water tank (6) (61) it is provided on warm water tap (62), the warm water water tank (6) is communicated with evaporator (15), institute by connecting tube (7) It states and is provided with cold water water tank in evaporator (15), the evaporator (15) is connected to the semiconductor by cold water outlet pipe (71) The heating end of refrigerator (13) connects, and the end of the cold water outlet pipe (71) is run through and stretches out the semiconductor cooler (13) outside, cold water outlet pipe (71) end is provided with cold water tap (72).
2. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 1, it is characterised in that: further include Continuous cooling device (9), the condenser (14) and evaporator (15) by reversing box (8) respectively with the continuous cooling device (9) it connects.
3. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 2, it is characterised in that: described to change First pipe (81) and second pipe (82), the first pipe (81) and the evaporator are provided with and communicated with to case (8) lower end (15) it connects, the second pipe (82) and the condenser (14) connect, and the upper end of the reversing box (8) is provided with and communicated with the Three pipelines (83) and the 4th pipeline (84), the third pipeline (83) and the 4th pipeline (84) respectively with the continuous cooling device (9) it connects, is provided with tee tube (85) in the reversing box (8), is connected with slide bar (86), the cunning on the tee tube (85) One end of bar (86) is run through and stretches out the reversing box (8) outside, and is connected with motor (88) by connecting rod (87).
4. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 3, it is characterised in that: the company Continuous refrigerating plant (9) include the first hose (91) and the second hose (92), one end and the described 4th of first hose (91) Pipeline (84) connection, the other end of first hose (91) are connected with the first zeolite plate (93), second hose (92) One end is connected to the third pipeline (83), and the other end of second hose (92) is connected with the second zeolite plate (94), described First zeolite plate (93) and the second zeolite plate (94) are setting up and down, and solid between the first zeolite plate (93) and the second zeolite plate (94) Surely shaft is connected, the shaft is connected with base electrical machinery (95), and the shaft is mounted on pedestal (96).
5. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 4, it is characterised in that: the bottom Seat motor (95) is connected with timer.
6. according to claim 1 it is a kind of integrate refrigeration and heating solar drinking-water machine, it is characterised in that: it is described too Positive energy heat collector (3) includes vacuum rose gold tube (31), and the both ends of the vacuum rose gold tube (31) are separately fixed at fixed frame (32) On, it is equipped with header (33) on the vacuum rose gold tube (31), the water inlet pipe (2) is connected to the header (33).
7. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 6, it is characterised in that: described Case (33) is connect far from the one end of the water inlet pipe (2) with the exit branch (4), and is installed on the exit branch (4) There are water outlet solenoid valve (41).
8. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 1, it is characterised in that: the company Solenoid valve is installed on adapter tube (7).
9. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 1, it is characterised in that: the heat Heating wire and temperature sensor are separately installed in water water tank (5) and warm water water tank (6).
10. a kind of solar drinking-water machine for integrating refrigeration and heating according to claim 3, it is characterised in that: described Tee tube (85) includes the first nozzle (851), the second nozzle (852), third nozzle (853).
CN201920256693.9U 2019-02-28 2019-02-28 A kind of solar drinking-water machine integrating refrigeration and heating Expired - Fee Related CN209726625U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920256693.9U CN209726625U (en) 2019-02-28 2019-02-28 A kind of solar drinking-water machine integrating refrigeration and heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920256693.9U CN209726625U (en) 2019-02-28 2019-02-28 A kind of solar drinking-water machine integrating refrigeration and heating

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Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113383889A (en) * 2020-03-12 2021-09-14 合肥华凌股份有限公司 Sugar control device and refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113383889A (en) * 2020-03-12 2021-09-14 合肥华凌股份有限公司 Sugar control device and refrigerator
CN113383889B (en) * 2020-03-12 2023-12-22 合肥华凌股份有限公司 Sugar control device and refrigerator

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Granted publication date: 20191203