CN114087769B - Intelligent light wave electric water heater - Google Patents
Intelligent light wave electric water heater Download PDFInfo
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- CN114087769B CN114087769B CN202111371405.2A CN202111371405A CN114087769B CN 114087769 B CN114087769 B CN 114087769B CN 202111371405 A CN202111371405 A CN 202111371405A CN 114087769 B CN114087769 B CN 114087769B
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- heating
- inner container
- water
- heating inner
- scale
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/0018—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using electric energy supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
Abstract
The invention discloses an intelligent light wave electric water heater, which relates to the technical field of electric water heaters and comprises: the water scale cleaning device comprises a shell, a heating inner container, a water scale collecting box and a pressure relief device, wherein the top of the shell is communicated with the top of the heating inner container through the pressure relief device, the water scale collecting box is communicated with one side of the bottom end of the heating inner container, the heating inner container is provided with a rotary heating device and a water scale cleaning device, the water scale cleaning device is arranged on the other side of the bottom end of the heating inner container, and the rotary heating device is arranged above the water scale cleaning device. The invention has simple structure, adopts the form of light wave heating, is not easy to leak electricity, and the quartz tube has high temperature resistance, strong thermal stability and difficult damage; and the rotary heating device rotates in the heating inner container, so that the water in the rotary heating device can be uniformly heated, and the heating efficiency is improved. In the rotating process, the surface of the quartz tube is not easy to adhere to the scale, the produced scale falls into the bottom of the heating inner container and is swept into the water scale collecting box by the scale cleaning device, and the water scale collecting box is convenient and labor-saving.
Description
Technical Field
The invention relates to the technical field of electric water heaters, in particular to an intelligent light wave electric water heater.
Background
At present, a heating element in an electric water heater generally adopts an electric heating wire type heating tube, and the heating tube is directly placed in an inner container to be in contact with water for heating, but in the use process, the heating wire type heating tube often has the safety problems of electric leakage, scaling, overheating damage and the like of the heating element. Because the heating pipe is generally installed in the inner container in a fixed welding mode, once the heating pipe is damaged, the heating pipe is inconvenient to replace and high in later maintenance cost, and the pressure relief valve of the conventional electric water heater often needs to be manually operated when the pressure in the water storage container is increased, so that certain inconvenience exists.
Therefore, how to provide an electric water heater with convenient replacement, safe heating process and automatic pressure relief is a problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the intelligent light wave electric water heater which is convenient to replace, safe in heating process and automatic in pressure relief.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
an intelligent light wave electric water heater, comprising: the water scale cleaning device comprises a shell, a heating inner container, a water scale collecting box and a pressure relief device, wherein the top of the shell is communicated with the top of the heating inner container through the pressure relief device, the water scale collecting box is communicated with one side of the bottom end of the heating inner container, the heating inner container is provided with a rotary heating device and a water scale cleaning device, the water scale cleaning device is arranged on the other side of the bottom end of the heating inner container, and the rotary heating device is arranged above the water scale cleaning device.
Preferably, the rotary heating apparatus includes: the servo motor is arranged on the outer side of the heating inner container, the triangular connecting plate and the quartz tube are arranged on the inner side of the heating inner container, the output shaft end of the servo motor is fixedly connected with the triangular connecting plate, an external thread is arranged at one side end of the quartz tube, internal thread holes are formed in three corners of the triangular connecting plate, and the quartz tube is in threaded connection with the internal thread of the triangular connecting plate through the external thread.
Preferably, a far infrared carbon fiber heating tube is arranged in the quartz tube.
Preferably, the scale cleaning device includes: the cleaning brush is arranged on the inner side of the heating inner container, and the output shaft end of the hydraulic propulsion cylinder is fixedly connected with the cleaning brush.
Preferably, the pressure relief device includes: the valve comprises a T-shaped valve body, a valve body guide shaft, a valve sheath and an air guide pipeline, wherein the T-shaped valve body is in threaded connection with the valve body guide shaft, a guide rail is arranged at the top of the valve sheath, a spring is arranged in the guide rail, and the valve body guide shaft is in sliding fit with the slide rail; the bottom of the side wall of the valve sheath is provided with a plurality of air leakage holes, and the valve sheath is arranged in the air guide pipeline.
Preferably, an electromagnetic valve is arranged at the communication part of the scale collecting box and the heating inner container, and a filter screen is arranged in the middle of the scale collecting box.
Preferably, a return pipe is further arranged between the scale collection box and the heating liner, the return pipe penetrates into the bottom end of the scale collection box, and a water pump is arranged at the position, extending out of the scale collection box, of the return pipe.
Preferably, a side wall of the scale collection box and the shell are in the same plane, and are fixed on the shell in a hinged mode.
Preferably, the method further comprises: the water inlet pipe is connected with the top of the heating inner container, the water outlet pipe is connected with the bottom of the heating inner container, the instant heating optical wave tube is sleeved outside the water outlet pipe, and asbestos is coated outside the instant heating optical wave tube.
Preferably, the integrated box body is arranged at the bottom of the shell, and the integrated box body is internally provided with: the heating inner container is internally provided with a controller, a wireless transmission unit and a voice recognition system, wherein the heating inner container is internally provided with a temperature sensor, and the servo motor, the hydraulic propulsion cylinder, the electromagnetic valve, the water pump, the instant heating light wave tube, the temperature sensor, the wireless transmission unit and the voice recognition system are electrically connected with the controller.
Compared with the prior art, the intelligent light wave electric water heater provided by the invention has the following advantages:
(1) The intelligent light wave electric water heater provided by the invention has the advantages that the structure is simple, the light wave heating mode is adopted, electric leakage is not easy to occur, the quartz tube is high-temperature resistant, the thermal stability is strong, and the electric water heater is not easy to damage; and the rotary heating device rotates in the heating inner container, so that the water in the rotary heating device can be uniformly heated, and the heating efficiency is improved. In the rotating process, the surface of the quartz tube is not easy to adhere to the scale, the produced scale falls into the bottom of the heating inner container and is swept into the water scale collecting box by the scale cleaning device, and the water scale collecting box is convenient and labor-saving.
(2) The instant heating light wave tube is arranged at the water outlet pipe of the intelligent light wave electric water heater, and is opened immediately when the amount of hot water is small, so that the waiting time of a user is reduced, and the instant heating light wave tube is arranged at the water outlet pipe, so that the hot water in the heating inner container can be supplemented, the heat loss of the hot water in the pipeline circulation is avoided, and the accurate control of the set temperature of the user can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a pressure relief device according to the present invention;
FIG. 3 is a schematic view of a rotary heating apparatus according to the present invention;
FIG. 4 is a schematic view of the scale collection tank according to the present invention.
In the figure: the device comprises a 1-shell, a 2-heating inner container, a 3-scale collecting box, a 4-pressure relief device, a 401-T-shaped valve body, a 402-valve body guide shaft, a 403-valve sheath, a 404-air guide pipeline, a 405-air release hole, a 5-servo motor, a 6-hydraulic pushing cylinder, a 7-triangular connecting plate, an 8-quartz tube, a 9-cleaning brush, a 10-far infrared carbon fiber heating tube, an 11-electromagnetic valve, a 12-filter screen, a 13-return tube, a 14-water pump, a 15-water inlet tube, a 16-water outlet tube, a 17-instant heating light wave tube, an 18-integrated box body and a 19-temperature sensor.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples:
example 1
An intelligent light wave electric water heater, comprising: the water scale cleaning device comprises a shell 1, a heating inner container 2, a water scale collecting box 3 and a pressure relief device 4, wherein the top of the shell 1 is communicated with the top of the heating inner container 2 through the pressure relief device 4, the water scale collecting box 3 is communicated with one side of the bottom end of the heating inner container 2, the heating inner container 2 is provided with a rotary heating device and a water scale cleaning device, the water scale cleaning device is arranged on the other side of the bottom end of the heating inner container 2, and the rotary heating device is arranged above the water scale cleaning device.
As a preferred embodiment, the rotary heating apparatus includes: the servo motor 5, the triangular connecting plate 7 and the quartz tube 8, wherein the servo motor 5 is arranged on the outer side of the heating inner container 2, the triangular connecting plate 7 and the quartz tube 8 are arranged on the inner side of the heating inner container 2, the output shaft end of the servo motor 5 is fixedly connected with the triangular connecting plate 7, an external thread is arranged at one side end part of the quartz tube 8, internal thread holes are formed in three corners of the triangular connecting plate 7, and the quartz tube 8 is in threaded connection with the internal thread of the triangular connecting plate 7 through the external thread. During operation, servo motor 5 drives triangle connecting plate 7 rotatory stirring in heating inner bag 2 makes the water in the heating inner bag 2 form the vortex and thereby reaches the heating evenly, promotes heating efficiency's purpose to the difficult incrustation scale that adheres to in the rotatory in-process quartz capsule surface has increased the life of quartz capsule, and quartz capsule and triangle connecting plate spiro union's design has made things convenient for later maintenance personnel's dismantlement work simultaneously, has saved the cost.
As a preferred embodiment, the quartz tube 8 is internally provided with a far infrared carbon fiber heating tube 10.
As a preferred embodiment, the scale cleaning device includes: the cleaning device comprises a hydraulic propulsion cylinder 6 and a cleaning brush 9, wherein the hydraulic propulsion cylinder 6 is arranged on the outer side of the heating inner container 2, the cleaning brush 9 is arranged on the inner side of the heating inner container 2, and the output shaft end of the hydraulic propulsion cylinder 6 is fixedly connected with the cleaning brush 9. Is used for cleaning the scale falling in the heating process of the rotary heating device.
As a preferred embodiment, the pressure relief device 4 comprises: the valve comprises a T-shaped valve body 401, a valve body guide shaft 402, a valve sheath 403 and an air guide pipeline 404, wherein the T-shaped valve body 401 is in threaded connection with the valve body guide shaft 402, a guide rail is arranged at the top of the valve sheath 403, a spring is arranged in the guide rail, and the valve body guide shaft 402 is in sliding fit with the slide rail; a plurality of air release holes 405 are formed in the bottom of the side wall of the valve sheath 403, and the valve sheath 403 is arranged in the air guide pipeline 404. When the heating inner container works, pressure difference is generated between the inside and the outside due to factors such as rising of water level in the inner container, thermal expansion of gas and the like, and the T-shaped valve body extrudes a spring in a guide rail along a valve body guide shaft, so that a leakage hole at the bottom of a valve sheath leaks out, gas in the heating inner container is discharged out of the shell along a gas guide pipeline, and the gas guide pipeline is arranged to avoid damage to other parts in the shell caused by high-temperature steam.
As a preferred embodiment, an electromagnetic valve 11 is arranged at the communication part of the scale collection box 3 and the heating liner 2, and a filter screen 12 is arranged in the middle of the scale collection box 3.
As a preferred embodiment, a return pipe 13 is further arranged between the scale collection tank 3 and the heating liner 2, the return pipe 13 extends into the bottom end of the scale collection tank 3, and a water pump 14 is arranged at the position where the return pipe 13 extends out of the scale collection tank 3.
As a preferred embodiment, a side wall of the scale collection tank 3 is fixed to the housing 1 in a hinge manner in the same plane as the housing 1. When the equipment works, the electromagnetic valve is in a closed state, when the equipment stops working, the electromagnetic valve is opened, the scale cleaning device operates to sweep muddy water with scale into the scale collecting box, the scale is screened out by the filter screen, and clean water is pumped back into the heating liner for standby through the return pipe. The user only needs to open the scale collecting box, take out the filter screen and clean and replace, and is convenient and quick.
As a preferred embodiment, further comprising: the water inlet pipe 15 and the water outlet pipe 16, the water inlet pipe 15 with heating inner bag 2 top is connected, the water outlet pipe 16 with heating inner bag 2 bottom is connected, the cover is equipped with instant heating light wave tube 17 in the outlet pipe outside, the cladding of instant heating light wave tube 17 outside has asbestos. The asbestos plays a role in heat insulation, and other parts in the shell are prevented from being damaged by high temperature generated when the instant heating optical wave tube works.
As a preferred embodiment, the integrated box 18 is further included, the integrated box 18 is disposed at the bottom of the casing 1, and the integrated box 18 is internally provided with: the heating inner container 2 is also provided with a temperature sensor 19, and the servo motor 5, the hydraulic propulsion cylinder 6, the electromagnetic valve 11, the water pump 14, the instant heating light wave tube 17, the temperature sensor 19, the wireless transmission unit and the voice recognition system are all electrically connected with the controller. The user can use terminal equipment, such as a mobile phone, a computer and the like to transmit instructions to the controller through the wireless transmission unit, so that the water in the heating inner container is heated in advance, and the controller can be controlled by voice of the voice recognition system to heat the water in the heating inner container.
As a preferred embodiment, a liquid crystal display and a control panel are arranged outside the shell.
Example 2
This device has three kinds of working modes, and first mode is the condition of urgent need a small amount of hot water, rotary heating device does not work, only through instant heating light wave pipe heating can, the energy saving, reduce cost, for example: washing hands, washing vegetables, and the like. The second working mode is the condition that a large amount of hot water is urgently needed, the rotary heating device and the instant heating light wave tube work simultaneously, the heating rate in the liner is accelerated, the waiting time of a user is reduced, and the use experience of the user is improved. In the third mode, when a large amount of hot water is needed and the time is abundant, only the rotary heating device works, the instant heating light wave tube does not work, and in the mode, electric power energy sources can be saved, and the electricity charge cost of a user is reduced.
In this specification, for the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant points refer to the description of the method section. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. An intelligent light wave electric water heater, which is characterized by comprising: the water scale cleaning device comprises a shell (1), a heating inner container (2), a water scale collecting box (3) and a pressure relief device (4), wherein the top of the shell (1) is communicated with the top of the heating inner container (2) through the pressure relief device (4), the water scale collecting box (3) is communicated with one side of the bottom end of the heating inner container (2), the heating inner container (2) is provided with a rotary heating device and a water scale cleaning device, the water scale cleaning device is arranged on the other side of the bottom end of the heating inner container (2), and the rotary heating device is arranged above the water scale cleaning device;
the rotary heating apparatus includes: the heating inner container comprises a servo motor (5), a triangular connecting plate (7) and a quartz tube (8), wherein the servo motor (5) is arranged on the outer side of the heating inner container (2), the triangular connecting plate (7) and the quartz tube (8) are arranged on the inner side of the heating inner container (2), the output shaft end of the servo motor (5) is fixedly connected with the triangular connecting plate (7), an external thread is arranged at one side end part of the quartz tube (8), internal thread holes are formed in three corners of the triangular connecting plate (7), and the quartz tube (8) is in threaded connection with the internal thread of the triangular connecting plate (7) through the external thread;
an electromagnetic valve (11) is arranged at the communication part of the scale collection box (3) and the heating inner container (2), and a filter screen (12) is arranged in the middle of the scale collection box (3);
a return pipe (13) is further arranged between the scale collection box (3) and the heating liner (2), the return pipe (13) penetrates into the bottom end of the scale collection box (3), and a water pump (14) is arranged at the position, extending out of the scale collection box (3), of the return pipe (13);
further comprises: the water inlet pipe (15) is connected with the top of the heating inner container (2), the water outlet pipe (16) is connected with the bottom of the heating inner container (2), the instant heating optical wave tube (17) is sleeved outside the water outlet pipe, and asbestos is coated outside the instant heating optical wave tube (17);
the pressure relief device (4) comprises: the valve comprises a T-shaped valve body (401), a valve body guide shaft (402), a valve sheath (403) and an air guide pipeline (404), wherein the T-shaped valve body (401) is in threaded connection with the valve body guide shaft (402), a guide rail is arranged at the top of the valve sheath (403), a spring is arranged in the guide rail, and the valve body guide shaft (402) is in sliding fit with the guide rail; a plurality of air leakage holes (405) are formed in the bottom of the side wall of the valve sheath (403), and the valve sheath (403) is arranged in the air guide pipeline (404);
the scale cleaning device includes: the cleaning device comprises a hydraulic propulsion cylinder (6) and a cleaning brush (9), wherein the hydraulic propulsion cylinder (6) is arranged on the outer side of the heating inner container (2), the cleaning brush (9) is arranged on the inner side of the heating inner container (2), and the output shaft end of the hydraulic propulsion cylinder (6) is fixedly connected with the cleaning brush (9).
2. The intelligent light wave electric water heater according to claim 1, wherein the quartz tube (8) is internally provided with a far infrared carbon fiber heating tube (10).
3. The intelligent light wave electric water heater according to claim 1, wherein a side wall of the scale collection box (3) and the shell (1) are in the same plane, and are fixed on the shell (1) in a hinged manner.
4. The intelligent light wave electric water heater according to claim 1, further comprising an integrated box (18), wherein the integrated box (18) is arranged at the bottom of the shell (1), and the integrated box (18) is internally provided with: the heating inner container is characterized by further comprising a controller, a wireless transmission unit and a voice recognition system, wherein a temperature sensor (19) is further arranged in the heating inner container (2), and the servo motor (5), the hydraulic pushing cylinder (6), the electromagnetic valve (11), the water pump (14), the instant heating light wave tube (17), the temperature sensor (19), the wireless transmission unit and the voice recognition system are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371405.2A CN114087769B (en) | 2021-11-18 | 2021-11-18 | Intelligent light wave electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371405.2A CN114087769B (en) | 2021-11-18 | 2021-11-18 | Intelligent light wave electric water heater |
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| CN114087769A CN114087769A (en) | 2022-02-25 |
| CN114087769B true CN114087769B (en) | 2023-05-16 |
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| CN202111371405.2A Active CN114087769B (en) | 2021-11-18 | 2021-11-18 | Intelligent light wave electric water heater |
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| CN113739411B (en) * | 2021-09-15 | 2022-08-16 | 陕西环保产业研究院有限公司 | High-efficient dirt quality of water purification and heating system that hinders based on little electrolysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926544Y (en) * | 2006-04-29 | 2007-07-25 | 山东潍柴华丰动力有限公司 | Explosion-proof device of gas engine |
| KR101524932B1 (en) * | 2013-09-24 | 2015-06-02 | 주식회사 동양매직 | Water Cleaner having cleaning water housing |
| US10429084B2 (en) * | 2017-02-21 | 2019-10-01 | A. O. Smith Corporation | Heat pump water heater |
| CN209310265U (en) * | 2018-12-28 | 2019-08-27 | 山东世光工业设备制造有限公司 | A kind of Far-infrared Heating unit |
| CN210220233U (en) * | 2019-08-02 | 2020-03-31 | 沧州沃盛源节能电器设备有限公司 | Clean convenient novel heat accumulation formula electric boiler |
| CN211084452U (en) * | 2019-12-11 | 2020-07-24 | 佛山市顺德区速惠尔电器有限公司 | Descaling structure of electromagnetic water heater |
| CN212524047U (en) * | 2020-06-11 | 2021-02-12 | 云南中医药大学 | Heating device for biochemistry |
| CN213955628U (en) * | 2020-08-05 | 2021-08-13 | 昆明统领科技有限公司 | Optical wave heating pipe assembly and optical wave water heater |
| CN113551410A (en) * | 2021-07-14 | 2021-10-26 | 青岛仟亿新材料科技有限公司 | Carbon fiber electric boiler |
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Denomination of invention: An intelligent light wave electric water heater Effective date of registration: 20230822 Granted publication date: 20230516 Pledgee: Qingdao Huiquan Hongye Commercial Management Co.,Ltd. Pledgor: Qingdao Qianyi New Material Technology Co.,Ltd. Registration number: Y2023370010090 |
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