CN203744512U - Electromagnetic water heater - Google Patents
Electromagnetic water heater Download PDFInfo
- Publication number
- CN203744512U CN203744512U CN201420110633.3U CN201420110633U CN203744512U CN 203744512 U CN203744512 U CN 203744512U CN 201420110633 U CN201420110633 U CN 201420110633U CN 203744512 U CN203744512 U CN 203744512U
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- inner bag
- water heater
- pipe
- water inlet
- liner
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Abstract
The utility model belongs to the field of water heater equipment, and relates to an electromagnetic water heater, in particular to an electromagnetic water heater adopting a liner. The electromagnetic water heater comprises an outer casing (1), wherein the liner and electromagnetic heating components are mounted in the outer casing (1). The electromagnetic water heater is characterized in that the electromagnetic heating components are arranged outside the liner (2), heating plates which are in induction with the electromagnetic heating components are nested in the liner (2), and a water inlet (12) and a water outlet (13) are formed in the liner (2) and communicated with a water inlet pipe (11) and a water outlet pipe (6) respectively; and an operating hole (4) is formed in the top of the liner (2), and an operating hole cover (5) is mounted at the operating hole (4) for sealing. According to the electromagnetic water heater, the liner is made of ceramics, quartz, glass or other non-metal materials, and the operating hole in the top of the liner as well as the water inlet and the water outlet in the bottom is integrally formed, so that the problems that a liner made of other metal materials is prone to rusting and electric leakage are effectively solved, and the liner has excellent insulation and magnetic flux effects.
Description
Technical field
A kind of electromagnet water heater, belongs to water heater arrangement field.
Background technology
At present, quick-heating electric water heater is normally installed high-power resistance silk formula electricity circulation pipe in courage, realizes the object of heating, adopts this mode of heating efficiency lower, adds circulation pipe heat exchange area little, heats up slow.Heating element heater outer wall easily forms incrustation scale, affects electrothermal efficiency and the life-span of water heater, causes energy waste; In addition, during due to electric circulation pipe work, directly contact with water, do not accomplish water power isolation truly, even if anti-electric wall is set, still have larger potential safety hazard.Therefore, now increasing water heater starts to adopt electromagnetism original paper to heat, and not only programming rate is fast, the efficiency of heating surface is high, and heat exchange area is larger, and the thermal efficiency is high.
But still there is certain defect in current electromagnet water heater, be mainly reflected in the use of inner bag: one, the inner bag of the good electromagnet water heater of quality adopts stainless steel or enamel material to make more, this bi-material can prevent that inner bag from getting rusty preferably, play the effect that extends water heater use birthday noodle, but, the inner bag that stainless steel is made needs thicker corrosion resistant plate to make, cost is higher, and the welding requirements of the weld seam of corrosion resistant plate is higher, weld and badly still can start rust corrosion from commissure, affect result of use; Two, for the burn into that prevents weld seam gets rusty, a lot of electromagnet water heaters start to adopt enamel technology, the inner bag surface curving at metallic plate applies one or more layers enamel, forms smooth, corrosion resistant top layer, and this kind of inner bag is better than stainless steel inner container in cost performance, but, after long-term use, the phenomenon that enamel surface can come off, still can not thoroughly solve antirust problem; Three, also have the plastic inner container of employing, but the effect of the pressure-bearing of plastic inner container and anti-dry there is again very large defect.
Summary of the invention
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of anticorrosion is provided, avoids the electromagnet water heater that gets rusty, increase the service life.
The technical scheme that the utility model solves its technical problem employing is: this electromagnet water heater, comprise shell body, inner bag and Electromagnetic Heating parts are housed in shell body, it is characterized in that: Electromagnetic Heating parts are equipped with in described inner bag outside, the inner heating plate of responding to mutually with Electromagnetic Heating parts that is set with of inner bag, on inner bag, have water inlet and delivery port, and be communicated with respectively water inlet pipe and outlet pipe; Inner bag top is provided with handle hole, operation port lid is housed on handle hole and seals.Inner bag is the cylindrical tube of pottery, glass, quartz or the one-body molded making of other nonmetallic materials, cross section is the rectangle of circle, ellipse or rounding, and the opening at inner bag top and the water inlet of bottom and delivery port are all integrated and form by a firing, the problems such as the inner bag that has not only effectively solved other materials gets rusty easily, plastic inner container pressure high-temp resistant is inadequate, also have good insulation and function solenoid, heatproof is effective; And be in advance the more convenient for assembling of later stage and miscellaneous part of the reserved installing port such as water inlet and delivery port, hole in addition without the later stage, ensure the accurate of the complete of inner bag and assembling; The shape of inner bag also can freely be adjusted according to the needs of the shape of shell body and concrete moisture storage capacity.
Described water inlet is arranged on the bottom of inner bag, and delivery port is arranged on the top of inner bag, and the outlet pipe that water outlet connects stretches out inner bag outside.
Described water inlet and delivery port are all arranged on the bottom of inner bag, and water outlet is installed the outlet pipe of vertically placing, and outlet pipe stretches into inner bag inside, and end is positioned at the top of inner bag.
Described heating plate comprises the heatable soleplate that is centered around the heating side plate of border in inner bag and is arranged on below in inner bag, splices or overlap heatable soleplate in heating side plate bottom, heating plate be close to inner bag inwall or and inner bag inwall between leave gap.Border and bottom at inner bag all arrange heating plate, increase heat exchange area, improve the efficiency of heating surface.
Described Electromagnetic Heating parts comprise electromagnetic induction coil, wiring board controller, coil installing rack and magnetic conduction bar, electromagnetic induction coil is discoid, embedded winding is arranged in the groove on coil installing rack top, be arranged on the below of inner bag by coil installing rack level, wiring board controller is arranged on the below of coil installing rack, and the bottom homogeneous radiation of coil installing rack is provided with multiple magnetic conduction bars.
Described electromagnetic induction coil is ring-type or is fixed on and on vertical plane, is formed U-shapedly by two concentric discs or concentration ellipse dish, is wound around or is sleeved on the middle and lower part in inner bag outside, or directly with the middle and lower part that is wrapped in inner bag after heat-preservation cotton isolation.
On the inwall of described shell body, apply one deck magnetic conduction coating, and uniform many group magnetic conduction bars in inner walls outside.
Described wiring board controller one side is provided with heat abstractor.
Described heat abstractor is the fan that is arranged on shell body bottom, and fan is provided with one or more groups.
Described heat abstractor is the circulation cooling mechanism that is arranged on wiring board controller one side, circulation cooling mechanism comprises radiator, circulation pipe and heat exchange sleeve, circulation pipe one end connects radiator as endotherm section, and the circulation pipe other end is socketed water inlet pipe as radiating segment by heat exchange sleeve.In circulation pipe, vacuumize and make heat pipe, or injected media, by the circulation of heat in circulation pipe, form heat exchange with cold water inlet, solve the heat radiation of power tube, under the normal temperature of guarantee wiring board controller, work.
Compared with prior art, the beneficial effect that the utility model has is:
1, inner bag adopts the nonmetallic materials of pottery, quartz, glass or other good heat resistances to be made completely, and water inlet and the delivery port of on inner bag top, opening gathering hole, bottom are all formed in one, not only effectively solved the problem that the inner bag of other materials gets rusty easily, and inner bag also has enough compressive resistance of good electric insulation and high-temperature resistant result.
2, inner bag in bottom reserved water inlet and delivery port in advance, the assembling of be more convenient for later stage and miscellaneous part, holed in addition without the later stage, ensured the accurate of assembling; And inner bag top is provided with the operation port lid of handle hole, and operation port lid sets up operation port lid lid, and operation port lid covers reserved fixed screw holes, more convenient early stage inner bag inner components equipped, and the maintenance work in later stage.
3, with bottom, the heating plate of responding to mutually with Electromagnetic Heating parts is all set in the border of inner bag, increases magnetic induction heating surface (area) (HS and heat exchange area, effectively raise the raising efficiency of heating surface.
Brief description of the drawings
Fig. 1 is the front view cross-sectional schematic of electromagnet water heater embodiment 1.
Fig. 2 is the front view cross-sectional schematic of embodiment 2.
Fig. 3 is the front view cross-sectional schematic of embodiment 3.
Fig. 4 is the upward view schematic diagram of elliptic cross-section inner bag.
Fig. 5 is the upward view schematic diagram of rectangle cross section inner bag.
Fig. 6 is the annexation schematic diagram of the circulation cooling mechanism of embodiment 4.
Fig. 7 is the structural representation that the condensation end of the circulation pipe of embodiment 5 is coiled pipe.
Fig. 8 is the snakelike circulation pipe structural representation of embodiment 6.
Fig. 9 is the structural representation that the circulation pipe of embodiment 7 is straight tube.
Wherein, 1, shell body 2, inner bag 3, heating side plate 4, handle hole 5, operation port lid 501, flanged water pipe 502, hold-down nut 503, sealing ring 6, outlet pipe 7, heatable soleplate 8, electromagnetic induction coil 9, coil installing rack 10, magnetic conduction bar 11, water inlet pipe 12, water inlet 13, delivery port 14, wiring board controller 15, fan 16, gland 17, Pipe connecting fitting 18, heat exchange sleeve 19, circulation pipe 20, snakelike circulation pipe 21, power tube 22, radiator 23, heat-dissipating fin 24, blind pipe.
Detailed description of the invention
Fig. 1,4 and 5 is most preferred embodiments of the present utility model, is described further below in conjunction with 1 ~ 9 pair of the utility model of accompanying drawing.
embodiment 1
With reference to accompanying drawing 1,4 and 5: this electromagnet water heater, comprise shell body 1, inner bag 2 and Electromagnetic Heating parts, the housing that shell body 1 is made for metallic plate, outer surface japanning, inwall applies one deck magnetic conduction coating, inner bag 2 and Electromagnetic Heating parts is housed, the cylindrical tube that inner bag 2 is formed in one in shell body 1, adopt pottery, quartz, glass or the good nonmetallic materials of other heat resistances to make, cross section is the rectangle of circle, semicircle, ellipse or rounding.Electromagnetic Heating parts are equipped with in inner bag 2 outsides, the inner heating plate of responding to mutually with Electromagnetic Heating parts that is set with of inner bag 2, inner bag 2 tops offer handle hole 4, and operation port lid 5 is housed on handle hole 4, rectangle or ellipse that handle hole 4 and operation port lid 5 are same shape; On inner bag 2, have water inlet 12 and delivery port 13, and be communicated with respectively water inlet pipe 11 and outlet pipe 6.On the inwall of shell body 1, the radial conducting magnetic column that is vertically provided with also can apply one deck magnetic conduction coating.Conducting magnetic column and magnetic conduction coating the leaking of magnetic field for preventing that Electromagnetic Heating parts from forming, ensures, in safe situation, fully to ensure the efficiency of heating surface.
As shown in Figure 1, water inlet 12 and delivery port 13 are all arranged on the bottom of inner bag 2, and the outlet pipe 6 of vertically placing is installed at delivery port 13 places, and outlet pipe 6 stretches into inner bag 2 inside, and end is positioned at the top of inner bag 2.
Heating plate is that the metallic plate material of irony is made, heating plate comprises the heating side plate 3 that is centered around inner bag 2 interior borders and the heatable soleplate 7 that is arranged on inner bag 2 interior belows, splice or overlap heatable soleplate 7 in heating side plate 3 bottoms, heating plate be close to inner bag inwall or and inner bag inwall between leave gap.
Electromagnetic Heating parts comprise electromagnetic induction coil 8, wiring board controller 14, coil installing rack 9 and magnetic conduction bar 10, electromagnetic induction coil 8 is discoid, embedded winding is arranged in the groove on coil installing rack 9, be arranged on the below of inner bag 2 by coil installing rack 9 levels, wiring board controller 14 is arranged on the below of coil installing rack 9, and the bottom homogeneous radiation of coil installing rack 9 is provided with multiple magnetic conduction bars 10.Wiring board controller 14 1 sides are provided with heat abstractor.Heat abstractor is the fan 15 that is arranged on shell body 1 bottom, and fan 15 is provided with one or more groups.
Operation port lid 5 be rectangle or ellipse, and the operation port lid 5 that edge cover is installed and had sealing gasket to seal is installed on the operation port lid 5 of handle hole from inside to outside, fixedly mounts with bolt by gland 16.Set up operation port lid 5 at inner bag 2 tops, convenience is being equipped with of inner bag 2 inner components in earlier stage, and the maintenance work in later stage.
In addition, inner bag 2 also can directly adopt cast iron or stainless steel casting to form, but in the time adopting stainless steel or cast iron materials, does not need to arrange heating plate 7, can utilize inner bag 2 self to heat.
The course of work: this electromagnet water heater is in the time of work, to utilize magnetic energy principle of induction to convert electric energy to heat energy, by rectification circuit, the alternating current of 50Hz/60Hz is transformed into DC voltage, the high frequency voltage that is 20-40Hz through control circuit by DC voltage inversion frequency again, the electric current changing at a high speed produces by electromagnetic induction coil 8 magnetic field changing at a high speed, in the time that magnetic field magnetic line passes through metallic conduction heating plate, can in the heat carrier of heating, constantly produce hundreds of millions little eddy-currents, collide and cut the water of flowing through in metallic conduction heating plate, get final product the water in rapid heating inner liner 2, roll into a ball water and rapidly water heating magnetization is become to active small molecular in the pink of condition.The cold water of running water enters inner bag 2 by water inlet pipe 11, and the hot water after heating flows out by outlet pipe 6.
embodiment 2
With reference to accompanying drawing 2: water inlet 12 is arranged on the bottom of inner bag 2, delivery port 13 is arranged on the top of inner bag 2, delivery port 13 places are provided with operation port lid 5, the one flanged water pipe 501 of vertically installing is installed on operation port lid 5, flanged water pipe 501 is outlet pipe, flanged water pipe 501 upper outside are fastening with hold-down nut 502, and flanged water pipe 501 bottoms are communicated with inner bag 2 tops, and inner bag 2 and shell body 1 outside are stretched out in flanged water pipe 501 tops.
The cold water of running water enters inner bag 2 by the water inlet pipe 11 of inner bag 2 bottoms, and the hot water after heating flows out by the outlet pipe 6 at inner bag 2 tops.Other settings and the course of work are identical with embodiment 1.
embodiment 3
With reference to accompanying drawing 3: electromagnetic induction coil 8 is fixed on and forms U-shapedly on vertical plane for ring-type or by two concentric discs or concentration ellipse dish, is wound around or is sleeved on the middle and lower part in inner bag 2 outsides, or directly with the middle and lower part that is wrapped in inner bag 2 after heat-preservation cotton isolation.Other settings and the course of work are identical with embodiment 1.
embodiment 4
With reference to accompanying drawing 6: wiring board controller 14 1 sides or the below of inner bag 2 are provided with heat abstractor, heat abstractor is the circulation cooling mechanism that is arranged on wiring board controller 14 1 sides, circulation cooling mechanism comprises radiator 22, circulation pipe 19 and heat exchange sleeve 18, circulation pipe 19 is the inner straight tube that is marked with heat-conducting medium, one end connects radiator 22 as endotherm section, the other end is communicated with heat exchange sleeve 18, is socketed water inlet pipe 11 as radiating segment by heat exchange sleeve 18.
Radiator 22 is the cavity heat radiator of fin radiator or hollow, in the middle of the embedded draw-in groove that is arranged on radiator 22 of the heat absorbing end of circulation pipe 19 or with the inner chamber of the cavity heat radiator of hollow, be connected, radiator 22 fits tightly installation with the power tube of wiring board controller 14, or by parts fixed overlay such as bolts together; Heat exchange sleeve 18, for being sleeved on the sleeve pipe in water inlet pipe 11 outsides, middle part, forms the free air space being connected with circulation pipe 19 between heat exchange sleeve 18 and water inlet pipe 11.Circulation by heat-conducting medium in circulation pipe 19 and heat exchange sleeve 18, forms heat exchange with the cold water of flowing through in water inlet pipe 11, solves the heat dissipation problem of power tube.
This circulation cooling mechanism is in the time of work, it is the heat self producing in the time working by the power tube of radiator 22 and heat-dissipating fin 23 absorption circuit plate controllers 14 thereof, after absorbing heat, circulation pipe 19 heat absorbing end conduct heat to by medium the radiating end being arranged in heat exchange sleeve 18, and with the cold water generation heat exchange of the water inlet pipe 11 of flowing through, cold water continues to enter inner bag 2 by water inlet 12 after absorbing heat, the heat generation heat exchange of circulation pipe 19 radiating ends, endotherm section end is returned in condensation rapidly, so circulation repeatedly, can effectively dispel the heat to wiring board controller 14, can before entering inner bag 2, cold water carry out again preheating, save a large amount of energy, tool is added up this kind of mode, radiating efficiency has at least improved 2% on the basis of original structure, and, shell body 1 bottom of the electromagnet water heater of this kind of structure can not arrange fan 15, enclosed construction is made in shell body 1 bottom, further improve the safety of water heater, sealing property.
embodiment 5
With reference to accompanying drawing 7: the heat absorbing end of circulation pipe 19 also can arrange continuous snakelike syndeton, form snakelike circulation pipe 20 as shown in Figure 7.Other settings and working method are identical with embodiment 4.
embodiment 6
With reference to accompanying drawing 8: the replaceable one end heat exchanger tube for being directly connected with water inlet pipe 11 of heat exchange sleeve 18, the diameter of heat exchanger tube is greater than the diameter of water inlet pipe 11, the heat absorbing end of circulation pipe 19 and radiating end are all made continuous snakelike tubulose, heat absorbing end is arranged in heat exchanger tube, in the middle of the embedded draw-in groove that is arranged on radiator 22 of radiating end.Other settings and working method are identical with embodiment 4.
embodiment 7
With reference to accompanying drawing 9: the replaceable one end heat exchanger tube for being directly connected with water inlet pipe 11 of heat exchange sleeve 18, the diameter of heat exchanger tube is greater than the diameter of water inlet pipe 11, circulation pipe 19 vacuumizes processing, form heat pipe, many group blind pipes 24 are installed in heat exchanger tube, the radiating end at the top of heat pipe is arranged in heat exchanger tube by blind pipe 24, and the condensation end of heat pipe connects radiator 22.The heat producing while work as heat absorbing end absorbed power pipe by the condensation end of heat pipe, then carries out heat exchange by radiating end and cold water, reaches the object of heat radiation.Other settings and working method are identical with embodiment 4.
The above, it is only preferred embodiment of the present utility model, be not the restriction of the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (10)
1. an electromagnet water heater, comprise shell body (1), inner bag and Electromagnetic Heating parts are housed in shell body (1), it is characterized in that: Electromagnetic Heating parts are equipped with in described inner bag (2) outside, the inner heating plate of responding to mutually with Electromagnetic Heating parts that is set with of inner bag (2), on inner bag (2), have water inlet (12) and delivery port (13), and be communicated with respectively water inlet pipe (11) and outlet pipe (6); Inner bag (2) top is provided with handle hole (4), operation port lid (5) is housed on handle hole (4) and seals.
2. a kind of electromagnet water heater according to claim 1, it is characterized in that: described water inlet (12) is arranged on the bottom of inner bag (2), delivery port (13) is arranged on the top of inner bag (2), and the outlet pipe (6) that delivery port (13) is located to connect stretches out inner bag (2) outside.
3. a kind of electromagnet water heater according to claim 1, it is characterized in that: described water inlet (12) and delivery port (13) are all arranged on the bottom of inner bag (2), delivery port (13) locates to install the outlet pipe (6) of vertical placement, outlet pipe (6) stretches into inner bag (2) inside, and end is positioned at the top of inner bag (2).
4. a kind of electromagnet water heater according to claim 1, it is characterized in that: described heating plate comprises the heatable soleplate (7) that is centered around the heating side plate (3) of the interior border of inner bag (2) and is arranged on below in inner bag (2), splice or overlap heatable soleplate (7) in heating side plate (3) bottom, heating plate be close to inner bag inwall or and inner bag inwall between leave gap.
5. a kind of electromagnet water heater according to claim 1, it is characterized in that: described Electromagnetic Heating parts comprise electromagnetic induction coil (8), wiring board controller (14), coil installing rack (9) and magnetic conduction bar (10), electromagnetic induction coil (8) is discoid, embedded winding is arranged in the groove on coil installing rack (9), be arranged on the below of inner bag (2) by coil installing rack (9) level, wiring board controller (14) is arranged on the below of coil installing rack (9), the bottom homogeneous radiation of coil installing rack (9) is provided with multiple magnetic conduction bars (10).
6. a kind of electromagnet water heater according to claim 5, it is characterized in that: described electromagnetic induction coil (8) for ring-type or by two concentric discs or concentration ellipse dish be fixed on vertical plane, form U-shaped, be wound around or be sleeved on the middle and lower part in inner bag (2) outside, or directly with the middle and lower part that is wrapped in inner bag (2) after heat-preservation cotton isolation.
7. a kind of electromagnet water heater according to claim 1, is characterized in that: on the inwall of described shell body (1), apply one deck magnetic conduction coating, and group magnetic conduction bars (10) more than uniform on shell body (1) inwall.
8. a kind of electromagnet water heater according to claim 5, is characterized in that: described wiring board controller (14) one sides are provided with heat abstractor.
9. a kind of electromagnet water heater according to claim 8, is characterized in that: described heat abstractor is for being arranged on the fan (15) bottom shell body (1), and fan (15) is provided with one or more groups.
10. a kind of electromagnet water heater according to claim 8, it is characterized in that: described heat abstractor is for being arranged on the circulation cooling mechanism of wiring board controller (14) one sides, circulation cooling mechanism comprises radiator (22), circulation pipe (19) and heat exchange sleeve (18), circulation pipe (19) one end connects radiator (22) as endotherm section, and circulation pipe (19) other end is socketed water inlet pipe (11) as radiating segment by heat exchange sleeve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110633.3U CN203744512U (en) | 2014-03-12 | 2014-03-12 | Electromagnetic water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110633.3U CN203744512U (en) | 2014-03-12 | 2014-03-12 | Electromagnetic water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203744512U true CN203744512U (en) | 2014-07-30 |
Family
ID=51344303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110633.3U Expired - Fee Related CN203744512U (en) | 2014-03-12 | 2014-03-12 | Electromagnetic water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203744512U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990252A (en) * | 2015-07-16 | 2015-10-21 | 严立华 | Multi-container electromagnetic heating expansion type electromagnetic water heater |
| CN107152790A (en) * | 2016-07-08 | 2017-09-12 | 马鞍山沅鑫智能技术设计开发有限公司 | A kind of energy-saving solar enamel electric water heater |
| CN109673072A (en) * | 2018-11-05 | 2019-04-23 | 张勤洪 | A kind of magnetocaloric generator |
| CN110953722A (en) * | 2019-10-09 | 2020-04-03 | 珠海格力电器股份有限公司 | Magnesium rod consumption monitoring method and device |
-
2014
- 2014-03-12 CN CN201420110633.3U patent/CN203744512U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990252A (en) * | 2015-07-16 | 2015-10-21 | 严立华 | Multi-container electromagnetic heating expansion type electromagnetic water heater |
| CN107152790A (en) * | 2016-07-08 | 2017-09-12 | 马鞍山沅鑫智能技术设计开发有限公司 | A kind of energy-saving solar enamel electric water heater |
| CN109673072A (en) * | 2018-11-05 | 2019-04-23 | 张勤洪 | A kind of magnetocaloric generator |
| CN110953722A (en) * | 2019-10-09 | 2020-04-03 | 珠海格力电器股份有限公司 | Magnesium rod consumption monitoring method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20180312 |