CN206817741U - Microwave water-heater - Google Patents
Microwave water-heater Download PDFInfo
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- CN206817741U CN206817741U CN201720331595.8U CN201720331595U CN206817741U CN 206817741 U CN206817741 U CN 206817741U CN 201720331595 U CN201720331595 U CN 201720331595U CN 206817741 U CN206817741 U CN 206817741U
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- microwave
- water
- inner bag
- heater
- heating system
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Abstract
The utility model discloses a kind of microwave water-heater, and it includes inner bag and multiple microwave heating systems.Inner bag is used for water storage.Microwave heating system is arranged on outside the inner bag, and the microwave heating system includes the microwave emitter of low-power, and for launching microwave into the inner bag by the microwave emitter.Microwave water-heater in the utility model embodiment is heated using the microwave emitter of multiple low-power to the water storage in inner bag, is obtained more hot water within a short period of time using the relatively low microwave water-heater of price, is met user's use demand.
Description
Technical field
It the utility model is related to field of water heaters, more particularly to a kind of microwave water-heater.
Background technology
Current microwave water-heater, the price of powerful microwave emitter are the numbers of the microwave emitter price of low-power
Times or so.The water storage in inner bag is heated according to powerful microwave emitter, price is higher；According to the microwave of low-power
Transmitter heats to the water storage in inner bag, then because power is too low the heat time can be caused long, influences user's use.
Utility model content
The utility model embodiment provides a kind of microwave water-heater, including：
Inner bag, the inner bag are used for water storage；
Multiple microwave heating systems, the microwave heating system are arranged on outside the inner bag, the microwave heating system bag
The microwave emitter of low-power is included, and for launching microwave into the inner bag by the microwave emitter.
Microwave water-heater in the utility model embodiment is using the microwave emitter of multiple low-power in inner bag
Water storage is heated, and more hot water is obtained within a short period of time using the relatively low microwave water-heater of price, meets that user uses
Demand.
In some embodiments, the both ends of the inner bag form installation end face, and the microwave heating system is arranged on institute
State on installation end face.
In some embodiments, the microwave heating system is 2, and a microwave heating system is arranged on described
The top of the installation end face of inner bag side, another described microwave heating system are arranged on the institute of the opposite side of the inner bag
State the bottom of installation end face.
In some embodiments, the installation end is recessed to form mounting groove towards the direction inside the inner bag, described
Microwave heating system is arranged in the mounting groove, and the installation trench bottom offers wave transparent mouth, and the microwave water-heater also wraps
Magnetron, waveguide elements and wave transparent part are included,
The magnetron is used to produce microwave, and the waveguide elements are used for the microwave for guiding the microwave emitter transmitting
Direction is dissipated, the wave transparent part seals the wave transparent mouth, and the wave transparent part is used to prevent in the inner bag through microwave
Water storage enter the waveguide elements.
In some embodiments, the power of the microwave emitter is 600W-1600W.
In some embodiments, the microwave water-heater is cooled down using air-cooled, water-cooling pattern to the magnetron.
In some embodiments, the microwave water-heater also includes control panel, and the control panel includes multiple controls
Unit processed, described control unit are used to control corresponding microwave heating system.
In some embodiments, shell is provided with outside the inner bag, is filled between the inner bag and the shell
Heat-barrier material.
The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partly will be under
Become obvious in the description in face, or recognized by practice of the present utility model.
Brief description of the drawings
In description of the of the present utility model above-mentioned and/or additional aspect and advantage from combination accompanying drawings below to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the structural representation of the microwave water-heater of the utility model embodiment.
Fig. 2 is the close-up schematic view of the microwave water-heater of the utility model embodiment.
Main element symbol description：
Microwave water-heater 100；
Inner bag 10, installation end face 12, mounting groove 14, wave transparent mouth 142, water inlet pipe 16, outlet pipe 18；
Microwave heating system 20, microwave emitter 22, magnetron 24, waveguide elements 26, wave transparent part 28, encapsulant
21；
Control panel 30, control unit 32；
Shell 40；
Power panel 50；
Filter band 60.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and it is not intended that to this practicality
New limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ",
" second " is only used for describing purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating
The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more
The feature.In description of the present utility model, " multiple " are meant that two or more, unless otherwise clearly specific
Limit.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；It can be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be in
Between medium be indirectly connected, can be connection or the interaction relationship of two elements of two element internals.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In description of the present utility model, unless otherwise clearly defined and limited, fisrt feature second feature it
" on " or it " under " can directly be contacted including the first and second features, it is not directly to connect that can also include the first and second features
Touch but pass through the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " on
Face " includes fisrt feature directly over second feature and oblique upper, or to be merely representative of fisrt feature level height special higher than second
Sign.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and tiltedly under
Side, or be merely representative of fisrt feature level height and be less than second feature.
Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model.
In order to simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Refer to Fig. 1 and Fig. 2, a kind of microwave water-heater 100 that the utility model embodiment provides, including the He of inner bag 10
Multiple microwave heating systems 20.Inner bag 10 is used for water storage.Microwave heating system 20 is arranged on outside inner bag 10, microwave heating system
20 include the microwave emitter 22 of low-power, and for launching microwave into inner bag 10 by microwave emitter 22.
Microwave water-heater 100 in the utility model embodiment is using the microwave emitter 22 of multiple low-power to inner bag
Water storage in 10 is heated, and more hot water is obtained within a short period of time using the relatively low microwave water-heater 100 of price, is met
User's use demand.
Specifically, the operation principle of microwave water-heater 100 is as follows：Microwave heating system 20 produces frequency electromagnetic waves, i.e., micro-
Ripple, in the presence of high-frequency electric field, the polar molecule of aqueous medium is switched to according to electrical oriented by original Arbitrary distribution state,
These orientations are constantly changed by the frequency of alternating electromagnetic field, and this change procedure causes hydrone to carry out friction fortune with high-frequency
It is dynamic, substantial amounts of heat is produced, water temperature is raised rapidly, so as to complete by the conversion of electric energy to heat energy.
Because microwave heating system 20 does not contact directly with water storage, and most of microwave water-heater 100 uses negative pressure
Connection, so being really achieved the purpose of electricity separation in use, user will not be caused to get an electric shock, improve microwave hot water
The security of device 100.Meanwhile microwave heating belongs to internal mode of heating, microwave energy directly acts on the water mesic molecule of water storage, stores
Water can be inside and outside while heated, it is not necessary to heat transfer, avoids hot-spot phenomenon present in external heat mode, also prevents
Phenomena such as hot spot section's fouling.
Further, when water storage is heated to the temperature of setting, microwave heater circuit can disconnect automatically, microwave heating system
20 stop heating water storage, and microwave water-heater 100 is in keeping warm mode.When the water temperature inside of inner bag 10 is reduced to this temperature,
Microwave heating system 20 is once again powered up heating.
In this way, moving in circles, microwave water-heater 100 remains hot water supply, is brought convenience to user.
Microwave emitter 22 is used to send microwave caused by microwave heating system 20 with higher speed.
In this way, microwave energy reaches the uniform heating apart from farther position, realized to the water storage in inner bag 10.
In some embodiments, inner bag 10 is made of metal material.
Because microwave can not penetrate metal, inner bag 10 can be prevented caused by microwave heating system 20 made of metal material
Microwave from leakage damages into air to user.Meanwhile microwave meets metal and produces reflection, in this way, microwave is more in inner bag 10
Secondary reflection, further the water storage in inner bag 10 is heated, improves the efficiency of heating surface.
Further, inner bag 10 can be made of stainless steel.
Compared to enamel inner container, stainless steel inner container quality is smaller, can mitigate the overall weight of microwave water-heater 100, makes micro-
Ripple water heater 100 easily facilitates installation and carried.Meanwhile stainless steel inner container hardness is high, slight impact occurs for microwave water-heater 100
Inner bag 10 will not be caused to damage, extend the service life of microwave water-heater 100.Some stainless steels also have etch-proof
Characteristic, further extend the useful life of microwave hot water.
Specifically, water inlet pipe 16 and outlet pipe 18 are provided with inner bag 10, the mouth of pipe of outlet pipe 18 is located in inner bag 10
Top, the mouth of pipe of water inlet pipe 16 are located at the bottom in inner bag 10.
Because hot water rises the principle of cold water decline, so so that the energy after the shorter heat time of microwave water-heater 100
More hot water are discharged, are user-friendly.
In some embodiments, the both ends of inner bag 10 form installation end face 12, and microwave heating system 20 is arranged on installation
On end face 12.
In this way, the structure of microwave water-heater 100 is simple, microwave heating system 20 is easily installed and dismantled.
Specifically, the both ends of inner bag 10 are planar structure, and microwave water-heater 100 is provided with dismountable separate housing (figure
Do not show) it is located on installation end face 12.
In this way, it is easily installed microwave heating system 20 on installation end face 12.When microwave heating system 20 needs repairing, directly
Separate housing, which is disassembled, to be repaired, simple to operate.
Further, the inside of shell 40 is provided with power panel 50 close to the position of installation end face 12.
In this way, the distance microwave heating system 20 of power panel 50 is relatively near, the length of connecting line can be saved, reduces microwave water-heater
100 cost.Meanwhile cabling of the connecting line inside microwave water-heater 100 can be reduced, and then reduce the difficulty of line maintenance.
Filter band 60 can be set in the bottom of microwave heating system 20.
In this way, can prevent microwave heating system 20 from being disturbed by other electromagnetic signals, microwave heating system 20 is improved
The intensity of operating efficiency and the microwave of transmitting.
In some embodiments, microwave heating system 20 is 2, and a microwave heating system 20 is arranged on inner bag 10
The top of the installation end face 12 of side, another microwave heating system 20 are arranged on the installation end face 12 of the opposite side of inner bag 10
Bottom.
In this way, control the cost of microwave water-heater 100.Meanwhile it is arranged such microwave heating system 20 and causes inner bag 10
Interior water storage heating is rapider, realizes full courage heating, improves the efficiency of heating surface, reduce the time that user waits hot water, uses
Family can obtain more hot water within the shorter time.Stored in addition, being arranged such microwave heating system 20 by inner bag 10
The flowing of water, reduce the loss of water storage heat, accelerate the heating of water storage.
Certainly, the number of microwave heating system 20 is not limited to embodiment discussed above, and can according to actual conditions,
Such as the water capacity of inner bag 10 number and the heating power of microwave heating system 20 select different number of microwave heating system 20,
To improve the speed that water storage is heated in inner bag 10, so as to lift the experience of user.For example smaller micro- of multiple power can be selected
Wave heating system 20.
The installation site of microwave heating system 20 is also not necessarily limited to embodiment discussed above, and can be held according to inner bag 10
The number of the water installation site different with the shape selection of inner bag 10, to improve the firing rate of the water storage in inner bag 10.
In some embodiments, installation end face 12 is recessed to form mounting groove 14 to the direction inside inner bag 10.Microwave adds
Hot systems 20 are arranged in mounting groove 14.The bottom of mounting groove 14 offers wave transparent mouth 142.Microwave water-heater 100 also includes magnetic control
Pipe 24, waveguide elements 26 and wave transparent part 28.
Magnetron 24 is used to produce microwave.Waveguide elements 26 are used for the diverging side for the microwave for guiding microwave emitter 22 to launch
To.Wave transparent part 28 seals wave transparent mouth 142.Wave transparent part 28 is used to prevent the water storage in inner bag 10 from entering waveguide through microwave
Part 26.
In this way, microwave heating system 20 reduces the space of occupancy, meanwhile, microwave heating system 20 is arranged on installation
Microwave from leakage is further avoid in groove 14, ensure that the safe to use of microwave water-heater 100.
Specifically, wave transparent mouth 142 is completely covered in wave transparent part 28.
In this way, can guarantee that microwave by wave transparent mouth 142 completely into the water storage in inner bag 10 without being leaked to other places, it is real
Existing microwave maximally utilizes.Simultaneously as wave transparent mouth 142 can prevent the water storage in inner bag 10 from entering mounting groove 14, so set
Put the situation that the water storage that also ensure that in inner bag 10 will not be revealed.
Magnetron 24 is arranged on outside mounting groove 14.
In this way, the space that mounting groove 14 takes can be reduced as far as possible, the maximization of water storage volume in inner bag 10 is realized.
Further, encapsulant 21 can be used to seal the gap between wave transparent part 28 and wave transparent mouth 142.
So, it is ensured that the water storage in inner bag 10 will not enter microwave heating system 20, cause microwave heating system 20 short
Road.
In some embodiments, the power of microwave emitter 22 is 600W-1600W.
In this way, greatly reduce the price of microwave water-heater 100.Meanwhile multiple 600W-1600W microwave emitter 22
The speed of water storage can meet the needs of user in heating inner liner 10, reduce multiple users and waited using during microwave water-heater 100
Time.
In some embodiments, mounting groove 14 uses encapsulating housing.
In some embodiments, mounting groove 14 uses encapsulating housing.
In this way, mounting groove 14 can effectively avoid the water storage in inner bag 10 from entering mounting groove 14, the portion in mounting groove 14 is caused
The situation of part short circuit.
Specifically, encapsulating housing uses resin glue filling technique.
In this way, mounting groove 14 has the protection of preferable insulative water-proof and preferable mechanical protection double protection performance, protection
Microwave heating system 20.
In some embodiments, waveguide elements 26 are made of metal material.
It can be reflected because microwave can not penetrate metal and run into metal, so the waveguide elements 26 of metal material can guide
Microwave is tapered to be diffused in the water storage in inner bag 10.Improve the efficiency of heating surface of microwave water-heater 100.
Further, waveguide elements 26 can be made of aluminum.
In this way, conductor losses and dielectric loss of the microwave at waveguide elements 26 are small, the heating effect of microwave water-heater 100
Rate is further enhanced.Meanwhile the price of aluminium is relatively low, the processing cost of microwave water-heater 100 can be effectively reduced.
In some embodiments, wave transparent part 28 is made of nonmetallic materials.
In this way, microwave may pass through wave transparent part 28 enter inner bag 10 in water storage and the water storage in inner bag 10 will not be from wave transparent
Part 28 is revealed.Meanwhile microwave is seldom in the energy lost made of nonmetallic materials at wave transparent part 28, effectively increases
The efficiency of heating surface of microwave water-heater 100.
Specifically, wave transparent part 28 can use ceramics or glass to be made.
Ceramics and glass are cheap, can reduce the cost of microwave water-heater 100.And microwave is at ceramics and glass
Very little is lost, reduces the energy consumption of microwave water-heater 100.
In some embodiments, microwave water-heater 100 is cooled down using air-cooled, water-cooling pattern to magnetron 24.
In this way, the temperature of magnetron 24 will not be too high, the launch mass of microwave ensure that.Meanwhile magnetron 24 will not be because
High temperature bursts, and extends the service life of magnetron 24.
Specifically, fan can be set on the side of magnetron 24, heat caused by magnetron 24 is dispersed into microwave hot water
Outside device 100.
Pipeline can also be set on the side of magnetron 24, the good transformer oil of built-in good heat conductivity, insulation effect or led
Hot silicone oil, transformer oil can be No. 10, No. 25 and No. 45, magnetron 24 be carried out by transformer oil or heat conductive silica gel oil cold
But radiate.
It is possible to further set drive device to drive the transformer oil in pipeline or thermal conductive silicon oil stream to move.
In this way, more preferable radiating effect can be realized.
In some embodiments, microwave water-heater 100 also includes control panel 30, and control panel 30 includes multiple controls
Unit 32 processed, control unit 32 are used to control corresponding microwave heating system 20.
In this way, control unit 32 can control the part of microwave heating system 20 to work or all work, to reach the mesh of energy-conservation
, reduce the use cost of microwave water-heater 100.
Specifically, when user is badly in need of a small amount of hot water, user can be controlled by control unit 32 is located at the top of inner bag 10
The microwave heating system 20 of position works, in this way, user can obtain hot water within a short period of time；When user needs a large amount of hot water
When, user can control all microwave heating systems 20 to work by control unit 32, in this way, user can obtain a large amount of hot water.
Further, control unit 32 is arranged on the control panel 30 of the lower section of inner bag 10.
In this way, user-friendly control unit 32, realizes the control to microwave heating system 20.
In some embodiments, shell 40 is provided with outside inner bag 10, filled with heat-insulated between inner bag 10 and shell 40
Material (not shown).
In this way, shell 40 and heat-barrier material are further incubated to the water storage in inner bag 10, the water storage in inner bag 10
Reach predetermined temperature, after magnetron 24 is stopped, the speed of water storage temperature decline is slow down, so as to reduce energy consumption.
Specifically, shell 40 can use plastics.
In this way, can further mitigate the weight of microwave water-heater 100, ensure the safety of suspension type microwave water-heater 100
Property.The manufacturing cost of microwave water-heater 100 can be also reduced simultaneously.
In some embodiments, heat-barrier material is nanoporous aerogel.
Heat loss is small after nanoporous aerogel insulation, in this way, heat-barrier material is guaranteed to the heat insulation effect of inner bag 10.Nanometer
The also absolute hydrophobic of aeroge, it can effectively prevent vapor from entering pipeline or device interior, corrosion equipment, reduce microwave water-heater
100 service life.Meanwhile the three-dimensional net structure of nanoporous aerogel is avoided in long term high temperature environment using sintering
The phenomenon that the heat insulation effects such as deformation, sedimentation are decreased obviously.Nanoporous aerogel is light, easily cuts, sews to adapt to various differences
The inner bag 10 of shape, and installation required time and manpower are less, space availability ratio is high.
Specifically, the aperture size of nanoporous aerogel is less than the mean free path of air molecule under normal pressure, therefore in nanometer
Air molecule is almost static in aeroge, avoids cross-ventilation heat transfer.And the bulk density and nanometer that nanoporous aerogel is relatively low
The crooked route of network also prevents solid-state heat transfer, minimizes heat radiation.
In this way, the heat insulation effect of heat-barrier material is guaranteed.
Further, heat-barrier material can also use the porous materials such as foam, fiber.
Porous material has good heat insulation effect.Foam, fiber and other material cost are relatively low simultaneously, can effectively reduce microwave
The cost of water heater 100.Foam, the quality of fiber and other material are also smaller, can mitigate the overall weight of microwave water-heater 100.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Specific features, structure, material or feature are contained at least one embodiment or example of the present utility model.In this explanation
In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, one of ordinary skill in the art can manage
Solution：A variety of to the progress of these embodiments can change in the case where not departing from principle and objective of the present utility model, change,
Replace and modification, the scope of the utility model are limited by claim and its equivalent.
Claims (8)
- A kind of 1. microwave water-heater, it is characterised in that including：Inner bag, the inner bag are used for water storage；Multiple microwave heating systems, the microwave heating system are arranged on outside the inner bag, and the microwave heating system includes low The microwave emitter of power, and for launching microwave into the inner bag by the microwave emitter.
- 2. microwave water-heater as claimed in claim 1, it is characterised in that the both ends of the inner bag form installation end face, described Microwave heating system is arranged on the installation end face.
- 3. microwave water-heater as claimed in claim 2, it is characterised in that the microwave heating system is 2, and one described micro- Wave heating system is arranged on the top of the installation end face of the inner bag side, and another described microwave heating system is arranged on The bottom of the installation end face of the opposite side of the inner bag.
- 4. microwave water-heater as claimed in claim 2, it is characterised in that the installation end is towards the direction inside the inner bag Depression forms mounting groove, and the microwave heating system is arranged in the mounting groove, and the installation trench bottom offers wave transparent mouth, The microwave water-heater also includes magnetron, waveguide elements and wave transparent part,The magnetron is used to produce microwave, and the waveguide elements are used for the diverging for guiding the microwave of the microwave emitter transmitting Direction, the wave transparent part seal the wave transparent mouth, and the wave transparent part is used to prevent the storage in the inner bag through microwave Water enters the waveguide elements.
- 5. microwave water-heater as claimed in claim 4, it is characterised in that the power of the microwave emitter is 600W- 1600W。
- 6. microwave water-heater as claimed in claim 4, it is characterised in that the microwave water-heater uses air-cooled, water-cooling pattern The magnetron is cooled down.
- 7. microwave water-heater as claimed in claim 1, it is characterised in that the microwave water-heater also includes control panel, institute Stating control panel includes multiple control units, and described control unit is used to control corresponding microwave heating system.
- 8. microwave water-heater as claimed in claim 1, it is characterised in that shell, the inner bag are provided with outside the inner bag Heat-barrier material is filled between the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720331595.8U CN206817741U (en) | 2017-03-30 | 2017-03-30 | Microwave water-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720331595.8U CN206817741U (en) | 2017-03-30 | 2017-03-30 | Microwave water-heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206817741U true CN206817741U (en) | 2017-12-29 |
Family
ID=60752055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720331595.8U Expired - Fee Related CN206817741U (en) | 2017-03-30 | 2017-03-30 | Microwave water-heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206817741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839401A (en) * | 2017-03-30 | 2017-06-13 | 广东美的厨房电器制造有限公司 | Microwave water-heater |
| CN115742438A (en) * | 2022-10-21 | 2023-03-07 | 华为数字能源技术有限公司 | Die-casting forming method, die and compression molding device |
-
2017
- 2017-03-30 CN CN201720331595.8U patent/CN206817741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839401A (en) * | 2017-03-30 | 2017-06-13 | 广东美的厨房电器制造有限公司 | Microwave water-heater |
| CN115742438A (en) * | 2022-10-21 | 2023-03-07 | 华为数字能源技术有限公司 | Die-casting forming method, die and compression molding device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |