CN110701782A - Electromagnetic heater and electromagnetic water heater - Google Patents

Electromagnetic heater and electromagnetic water heater Download PDF

Info

Publication number
CN110701782A
CN110701782A CN201911098702.7A CN201911098702A CN110701782A CN 110701782 A CN110701782 A CN 110701782A CN 201911098702 A CN201911098702 A CN 201911098702A CN 110701782 A CN110701782 A CN 110701782A
Authority
CN
China
Prior art keywords
electromagnetic
water
pipe
heating
ceramic tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911098702.7A
Other languages
Chinese (zh)
Inventor
李岳刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Dongte Engineering Equipment Co Ltd
Original Assignee
Shenzhen Dongte Engineering Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Dongte Engineering Equipment Co Ltd filed Critical Shenzhen Dongte Engineering Equipment Co Ltd
Priority to CN201911098702.7A priority Critical patent/CN110701782A/en
Publication of CN110701782A publication Critical patent/CN110701782A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/142Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates or heating means
    • F24H9/1809Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818Arrangement or mounting of electric heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices
    • F24H9/2007Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2028Continuous-flow heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2250/00Electrical heat generating means
    • F24H2250/08Induction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

The invention provides an electromagnetic heater, which comprises a coil, a ceramic tube, an upper flange plate, a lower flange plate and a heating body made of metal materials, wherein two ends of the ceramic tube are respectively provided with an upper flange and a lower flange which extend in the radial direction; the heating body is a solid rod body and is arranged in the ceramic tube, and a water flow gap is formed between the ceramic tube and the heating body; the gap between one end of the ceramic tube and one end of the heating element is a cold water inlet, the gap between the other end of the ceramic tube and the other end of the heating element is a hot water outlet, and the coil is arranged on the outer surface of the ceramic tube. The technical scheme also provides the electromagnetic water heater with the electromagnetic heater. The invention adopts the electromagnetic coil to heat the water flow after being electrified and to preheat the cold water by heating the electronic components on the controller, and is beneficial to cooling and radiating, thereby improving the utilization rate of electric energy, having high heating speed, no emission, cleanness and sanitation.

Description

Electromagnetic heater and electromagnetic water heater
Technical Field
The invention relates to the technical field of electromagnetic heating, in particular to an electromagnetic heater and an electromagnetic water heater.
Background
At present, most of traditional electric heating furnaces adopt heating rods for heating, the heating rods are inserted into water, and water and electricity are separated by sealing materials. The area of the electric heating wire is small, the electric heating wire is transferred to the surface of the heating rod and then is transferred to water, and the heat transfer is slow. The electric bar is arranged in water, even if a waterproof and anti-creeping process is adopted, the electric device is arranged in water after all, particularly, the electric bar is used for a period of time, the surface scales, the heat exchange effect is seriously influenced, the electric heat conversion efficiency is reduced, and the energy-saving effect is influenced. The electric heating stove has the advantages of poor safety performance, short service life and inconvenient maintenance, and the market needs to have a different electromagnetic water heater to meet the living demands of people.
Disclosure of Invention
In order to solve the problems, the invention provides the electromagnetic heater which has clean and sanitary water quality, high heating speed, convenient installation, high heat conversion efficiency and energy conservation.
The technical scheme of the invention is realized as follows:
the invention discloses an electromagnetic heater, which comprises a coil, a ceramic tube, an upper flange plate, a lower flange plate and a heating body made of metal materials, wherein both ends of the ceramic tube are respectively provided with an upper flange and a lower flange which extend in the radial direction; the heating body is a solid rod body, the heating body is arranged in the ceramic tube, and a water flow gap is formed between the ceramic tube and the heating body; the gap between one end of the ceramic tube and one end of the heating body is a cold water inlet, the gap between the other end of the ceramic tube and the other end of the heating body is a hot water outlet, and the coil is arranged on the outer surface of the ceramic tube and positioned between the upper flange and the lower flange.
Further, the heating body comprises a rod body, a conical part arranged at the lower end of the rod body and a cylindrical part arranged at the upper end of the rod body, the conical part is connected with a support arranged in the lower flange plate, and the cylindrical part is connected to the upper flange plate through screws.
Further, the electromagnetic heater also comprises a cold water square pipe, and the cold water square pipe is arranged on the outer side of the lower flange and communicated with the cold water inlet.
Furthermore, an installation surface is arranged on the outer side of the cold water square pipe, a screw hole is formed in the installation surface, and the installation surface is used for being tightly attached to and connected with the radiator through the screw hole.
Further, a groove is formed in one end of the cold water square pipe, a sealing gasket is arranged in the groove, and the sealing gasket is used for sealing connection of the cold water square pipe and the lower flange.
Furthermore, a screw rod is arranged between the upper flange plate and the lower flange plate, and the upper flange plate and the lower flange plate are fixedly connected through the screw rod.
An electromagnetic water heater comprises a shell, a fixing frame, a water inlet pipe, a water outlet pipe and a controller, wherein the controller comprises a power supply device, a control circuit board and a frequency converter, the power supply device is electrically connected with the control circuit board and the frequency converter, the electromagnetic water heater further comprises an electromagnetic heater, a first cooling fan and a second cooling fan, the electromagnetic heater comprises a heating pipe and a cold water square pipe, the fixing frame is arranged in the shell, the heating pipe is arranged on the fixing frame, the first cooling fan is arranged at the bottom of the fixing frame and used for exhausting and cooling the heating pipe, the water inlet pipe is connected to one end of the cold water square pipe, the other end of the cold water square pipe is connected to the inlet of the heating pipe, the outlet of the heating pipe is connected with the water outlet pipe, and the frequency converter is connected to the, the power supply device is arranged on one side of the fixing frame, a second cooling fan is arranged below the power supply device, and the electromagnetic heater, the first cooling fan and the second cooling fan are all electrically connected with the controller.
Furthermore, the electromagnetic water heater also comprises a touch display screen arranged on one side of the shell, and the touch display screen is electrically connected with the control circuit board and is used for realizing human-computer interaction.
Furthermore, the electromagnetic water heater also comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged in the water inlet pipe and electrically connected with the controller, and the second temperature sensor is arranged in the water outlet pipe and electrically connected with the controller.
Further, a water level probe is mounted on the water outlet pipe and electrically connected to the controller for detecting whether water flows in the water outlet pipe.
The electromagnetic water heater has the following beneficial technical effects:
according to the invention, after the electromagnetic coil is electrified, the electromagnetic heating is carried out on the water flow, cold water is preheated by heating of the electronic component on the controller, and meanwhile, the cooling and heat dissipation are facilitated, so that the utilization rate of electric energy is improved, and the energy-saving effect is achieved; the ceramic tube and the solid heating rod body made of metal materials form a water flow gap, and the inner wall of the ceramic tube and the outer surface of the solid heating rod body are smooth, so that the magnetized water is less in scale formation and is clean and sanitary.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional structural view of an electromagnetic heater according to an embodiment of the present invention;
FIG. 2 is an exploded view of an electromagnetic heater according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a portion of an electromagnetic water heater according to an embodiment of the present invention;
fig. 4 is a schematic view of an external structure of the electromagnetic water heater according to the embodiment of the invention.
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.
Referring to fig. 1 and 2, an electromagnetic heater according to an embodiment of the present invention includes a coil 1, a ceramic tube 2, an upper flange 3, a lower flange 4, and a heating element 5 made of a metal material, wherein two ends of the ceramic tube 2 respectively have an upper flange 21 and a lower flange 22 extending radially, the upper flange 2 is connected to an inner side of the upper flange 3 in a fitting manner, and the lower flange 22 is connected to an inner side of the lower flange 4 in a fitting manner; the heating element 5 is a solid rod body, the heating element 5 is arranged in the ceramic tube 2, and a water flow gap 6 is arranged between the ceramic tube 2 and the heating element 5; a gap between one end of the ceramic tube 2 and one end of the heating element 5 is a cold water inlet 7, a gap between the other end of the ceramic tube 2 and the other end of the heating element 5 is a hot water outlet 8, and the coil 1 is disposed on the outer surface of the ceramic tube 2 and between the upper flange 21 and the lower flange 22.
According to a specific embodiment, the heating element 5 comprises a rod 51, a tapered portion 52 provided at the lower end of the rod 51, and a cylindrical portion 53 provided at the upper end of the rod 51, the tapered portion 52 being connected to a bracket provided in the lower flange 4, and the cylindrical portion 53 being connected to the upper flange 3 by screws.
According to a specific embodiment, the electromagnetic heater further comprises a cold water square pipe 9, and the cold water square pipe 9 is arranged outside the lower flange 4 and is communicated with the cold water inlet 7.
According to a specific embodiment, the cold water square pipe 9 is provided with a mounting surface 91 on the outer side, the mounting surface 91 is provided with a screw hole 92, and the mounting surface 91 is used for being tightly attached to a radiator through the screw hole 92.
According to a specific embodiment, a groove is formed in one end of the cold water square pipe 9, and a sealing gasket is arranged in the groove and used for sealing connection between the cold water square pipe 9 and the lower flange 4.
According to a specific embodiment, a screw 101 is arranged between the upper flange 3 and the lower flange 4, and the upper flange 3 and the lower flange 4 are fixedly connected through the screw 101.
Referring to fig. 3 and 4, an electromagnetic water heater with an electromagnetic heater includes a housing 10, a fixing frame 20, a water inlet pipe 30, a water outlet pipe 40 and a controller 50, the controller 50 includes a power supply device 501, a control circuit board and a frequency converter 502, the power supply device 501 is electrically connected to the control circuit board and the frequency converter 502, the electromagnetic heater 60, a first cooling fan 70 and a second cooling fan 80, the electromagnetic heater 60 includes a heating pipe 601 and a cold water square pipe 9, the fixing frame 20 is disposed in the housing 10, the heating pipe 601 is disposed on the fixing frame 20, the first cooling fan 70 is disposed at the bottom of the fixing frame 20, the first cooling fan 70 is used for exhausting and cooling the heating pipe 601, the water inlet pipe 30 is connected to one end of the cold water square pipe 9, the other end of the cold water square pipe 9 is connected to an inlet of the heating pipe 601, an outlet of the heating pipe 601 is connected to, the power supply device 501 is disposed on one side of the fixing frame 20, and a second heat dissipation fan 80 is disposed below the power supply device 501, and the electromagnetic heater 60, the first heat dissipation fan 70, and the second heat dissipation fan 80 are electrically connected to the controller 50.
The electromagnetic water heater further comprises a touch display screen 90 arranged on one side of the casing 10, and the touch display screen 90 is electrically connected with the control circuit board and used for realizing human-computer interaction.
The electromagnetic water heater further includes a first temperature sensor 100 and a second temperature sensor 110, wherein the first temperature sensor 100 is disposed in the water inlet pipe 30 and electrically connected to the controller 50, and the second temperature sensor 110 is disposed in the water outlet pipe 40 and electrically connected to the controller 50.
A water level probe 120 is mounted on the outlet pipe 40, and the water level probe 120 is electrically connected to the controller 50 for detecting whether there is water flow in the outlet pipe 40.
Further explanation is as follows:
different from the traditional heating body heating mode that the electric heating stove is electrified and immersed in water, the electromagnetic heater adopts electromagnetic induction heating, the coil is arranged on the outer surface of the ceramic tube, and an insulating cloth is arranged between the coil and the ceramic tube, the insulating cloth has the functions of insulation and heat preservation, the coil is electrified to generate a high-frequency magnetic field to act on a high-magnetic-permeability metal heating body (a metal rod body), the heating body is arranged in the ceramic tube, a water flow gap is formed between the ceramic tube and the heating body, metal in the high-frequency magnetic field generates vortex to generate heat, the heat exchange is directly carried out with water flow passing through the water flow gap, the heating body adopts the metal rod body, the outer surface of the metal rod body is smooth, scales are not easily generated on the outer surface of the smooth metal rod body and the inner surface of.
The electromagnetic water heater adopts the electromagnetic heater to heat cold water, and further comprises a shell, a fixing frame, a water inlet pipe, a water outlet pipe and a controller, wherein the controller comprises a power supply device, a control circuit board and a frequency converter, the power supply device is electrically connected with the control circuit board and the frequency converter, and the electromagnetic water heater further comprises an electromagnetic heater, a first cooling fan, a second cooling fan, a touch display screen, a first temperature sensor, a second temperature sensor and a water level probe. The electromagnetic heater is a heater which converts electric energy into heat energy by utilizing an electromagnetic induction principle, a power supply device in a controller converts 50HZ/60HZ alternating current into direct current, and the direct current is converted into high-frequency alternating current with the frequency of 10KHZ-40KHZ by a frequency converter; when high-frequency alternating current flows through a coil (high-frequency wire) wound outside the ceramic tube, magnetic lines of force generated inside a high-speed changing magnetic field cut a heating body (metal rod body) inside the magnetic field to generate countless small eddy currents, so that water is heated quickly, and the effect of quickly heating the water is achieved.
Electromagnetic heater includes heating pipe and cold water side pipe, be equipped with the mount in the casing, set up this heating pipe on the mount, the mount bottom is equipped with first cooling fan, first cooling fan is used for the heat dissipation of airing exhaust for the heating pipe, advance water piping connection to cold water side pipe one end, cold water side pipe other end is connected to the entry of heating pipe, the exit linkage outlet pipe of heating pipe, the converter is connected to the installation face of cold water side pipe through the radiator, because the converter is that the electron generates heat the part and gives out heat greatly, its calorific capacity preheats cold water in to cold water side pipe through the radiator, on the one hand can normally work to converter self cooling assurance, on the other hand is in order to preheat. The power supply device is arranged on one side of the fixing frame, a second cooling fan is arranged below the power supply device, and the electromagnetic heater, the first cooling fan and the second cooling fan are all electrically connected with the controller.
The electromagnetic water heater has the following beneficial technical effects:
the electromagnetic heating device adopts the electromagnetic coil to carry out electromagnetic heating on water flow after being electrified, the frequency converter is connected to the mounting surface of the cold water square pipe through the radiator, and the frequency converter has the advantages that the electronic heating component has large heat productivity, the heat productivity preheats the cold water in the cold water square pipe through the radiator, on one hand, the temperature of the frequency converter is reduced to ensure normal work, and on the other hand, the cold water in the cold water square pipe is preheated, so the electric energy utilization rate is improved, the water temperature rising speed is high, the magnetized water has less scale formation, no discharge, cleanness and sanitation, and the energy-.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements, etc. made in whole or in part within the spirit and scope of the present invention are intended to be included therein.

Claims (10)

1. An electromagnetic heater is characterized by comprising a coil, a ceramic tube, an upper flange plate, a lower flange plate and a heating body made of metal materials, wherein an upper flange and a lower flange which extend in the radial direction are respectively arranged at two ends of the ceramic tube; the heating body is a solid rod body, the heating body is arranged in the ceramic tube, and a water flow gap is formed between the ceramic tube and the heating body; the gap between one end of the ceramic tube and one end of the heating body is a cold water inlet, the gap between the other end of the ceramic tube and the other end of the heating body is a hot water outlet, and the coil is arranged on the outer surface of the ceramic tube and positioned between the upper flange and the lower flange.
2. The electromagnetic heater according to claim 1, wherein said heat generating body comprises a rod body, a tapered portion provided at a lower end of the rod body, and a cylindrical portion provided at an upper end of the rod body, said tapered portion being connected to a bracket provided in said lower flange, said cylindrical portion being connected to said upper flange by screws.
3. The electromagnetic heater according to claim 1, further comprising a cold water square tube disposed outside said lower flange and in communication with said cold water inlet.
4. The electromagnetic heater according to claim 3, wherein the outer side of the cold water square pipe is provided with a mounting surface, the mounting surface is provided with a screw hole, and the mounting surface is used for being tightly attached to a radiator through the screw hole.
5. The electromagnetic heater according to claim 3, wherein a groove is formed in one end of the cold water square pipe, and a sealing gasket is arranged in the groove and used for sealing connection between the cold water square pipe and the lower flange.
6. The electromagnetic heater of claim 1, wherein a screw is disposed between the upper flange and the lower flange, and the upper flange and the lower flange are connected and fixed by the screw.
7. An electromagnetic water heater applying the electromagnetic heater of claim 1, comprising a casing, a fixing frame, a water inlet pipe, a water outlet pipe and a controller, wherein the controller comprises a power supply device, a control circuit board and a frequency converter, the power supply device is electrically connected with the control circuit board and the frequency converter, the electromagnetic water heater further comprises the electromagnetic heater, a first cooling fan and a second cooling fan, the electromagnetic heater comprises a heating pipe and a cold water square pipe, the fixing frame is arranged in the casing, the heating pipe is arranged on the fixing frame, the first cooling fan is arranged at the bottom of the fixing frame and used for exhausting and cooling the heating pipe, the water inlet pipe is connected to one end of the cold water square pipe, the other end of the cold water square pipe is connected to the inlet of the heating pipe, the outlet of the heating pipe is connected with the water outlet pipe, and the frequency converter is connected to the mounting surface of the, the power supply device is arranged on one side of the fixing frame, a second cooling fan is arranged below the power supply device, and the electromagnetic heater, the first cooling fan and the second cooling fan are all electrically connected with the controller.
8. The electromagnetic water heater according to claim 7, further comprising a touch display screen disposed on one side of the housing, wherein the touch display screen is electrically connected to the control circuit board and is used for human-computer interaction.
9. The electromagnetic water heater according to claim 7, further comprising a first temperature sensor disposed in the water inlet pipe and electrically connected to the controller, and a second temperature sensor disposed in the water outlet pipe and electrically connected to the controller.
10. The electromagnetic water heater of claim 7, wherein a water level probe is mounted on the outlet pipe, the water level probe being electrically connected to the controller for detecting whether there is water flow in the outlet pipe.
CN201911098702.7A 2019-11-12 2019-11-12 Electromagnetic heater and electromagnetic water heater Pending CN110701782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911098702.7A CN110701782A (en) 2019-11-12 2019-11-12 Electromagnetic heater and electromagnetic water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911098702.7A CN110701782A (en) 2019-11-12 2019-11-12 Electromagnetic heater and electromagnetic water heater

Publications (1)

Publication Number Publication Date
CN110701782A true CN110701782A (en) 2020-01-17

Family

ID=69205842

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911098702.7A Pending CN110701782A (en) 2019-11-12 2019-11-12 Electromagnetic heater and electromagnetic water heater

Country Status (1)

Country Link
CN (1) CN110701782A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2449118Y (en) * 2000-11-01 2001-09-19 利民(番禺南沙)电器发展有限公司 Electromagnet water heater
US20090092384A1 (en) * 2007-08-09 2009-04-09 Shimin Luo High frequency induction heating instantaneous tankless water heaters
CN105889885A (en) * 2016-06-06 2016-08-24 天津赛金节能科技有限公司 Super-audio electromagnetic bar
CN110398052A (en) * 2019-08-26 2019-11-01 深圳市东特工程设备有限公司 A kind of electromagnetic heater and electromagnetism hot water machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2449118Y (en) * 2000-11-01 2001-09-19 利民(番禺南沙)电器发展有限公司 Electromagnet water heater
US20090092384A1 (en) * 2007-08-09 2009-04-09 Shimin Luo High frequency induction heating instantaneous tankless water heaters
CN105889885A (en) * 2016-06-06 2016-08-24 天津赛金节能科技有限公司 Super-audio electromagnetic bar
CN110398052A (en) * 2019-08-26 2019-11-01 深圳市东特工程设备有限公司 A kind of electromagnetic heater and electromagnetism hot water machine

Similar Documents

Publication Publication Date Title
CN2729575Y (en) Electromagnetic water heater
CN210601555U (en) Energy-saving frequency-conversion electromagnetic heating steam engine
CN110398052A (en) A kind of electromagnetic heater and electromagnetism hot water machine
CN201391917Y (en) Household multifunctional electric cooker
CN110701782A (en) Electromagnetic heater and electromagnetic water heater
CN201885375U (en) Quick electric water heater
CN2916484Y (en) Frequency-conversion electromagnetic water heater
CN208253844U (en) A kind of electromagnetic heating type air wetting energy saver
CN209558482U (en) A kind of electromagnetic induction heating stove
CN210740689U (en) Directly-heated electromagnetic energy heating water heater
CN212178987U (en) Electric heater
CN210602227U (en) Electromagnetic heater
CN208011837U (en) A kind of electromagnetic type heating service device
CN211625689U (en) Magnetic energy heating stove
CN211022258U (en) Electromagnetic heating device and water dispenser
CN205065873U (en) Adopt warm type bathroom heater of wind of electromagnetic heating principle
CN110470049A (en) A kind of intelligent and high-efficiency water body heating type instant-heating electric water heater
CN201141692Y (en) Energy-saving electromagnetic water heater
CN217082913U (en) Novel air-isolated heating magnetic energy instant water heater
CN1122159C (en) Electrically heating method and equipment
CN2572286Y (en) Electromagnetic water heater
CN208887093U (en) A kind of electromagnetism wall-hung boiler
CN205561230U (en) Electromagnetic water heater
CN205102380U (en) Small -size pipeline type water heater that declines
CN211041053U (en) Energy-conserving commercial induction cooker

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200117

WD01 Invention patent application deemed withdrawn after publication