CN210089111U - Electromagnetic eddy heating device and instant water heater using same - Google Patents

Abstract

The utility model discloses an electromagnetic eddy current heating device, including heating plate and first heating element, the holding intracavity of heating plate is equipped with a plurality of baffles, and the cooperation forms between two at least baffles and overflows the unit, overflows the unit and forms through the discharge orifice intercommunication on the baffle and overflow the passageway, is equipped with water inlet and delivery port on the heating plate respectively, and the holding chamber of two adjacent heating plates is linked together. The utility model has small energy loss and stable water outlet temperature. The utility model discloses an instantaneous water heater, including control mainboard, water tank and second heating element, the entry of water tank and the holding chamber intercommunication of one of them heating plate, the export of water tank and the delivery port intercommunication of back heating plate, the water inlet department of preceding heating plate is equipped with the detection box, detects box internal temperature sensor, the utility model discloses can be in the electric wire netting load of registering one's residence, through mode and the water tank moisturizing heating mode that a plurality of heating plates heated respectively, provide bigger temperature rise, can satisfy the requirement of leaving water temperature fast.

Description

Electromagnetic eddy heating device and instant water heater using same

Technical Field

The utility model relates to a heating device technical field, in particular to electromagnetic eddy current heating device and use its instantaneous water heater.

Background

The existing water heaters comprise a resistance water heater, a gas water heater and an electromagnetic eddy current water heater, the efficiency of the resistance water heater is low, water and electricity are not separated, and electric shock is easy to occur; the gas water heater is easy to produce toxic and harmful gas and pollutes the environment.

An electromagnetic eddy current type water heater is characterized in that electromagnetic eddy current is conducted on an induction coil by utilizing the principle of electromagnetic induction, an alternating magnetic field with the same frequency is generated, a metal body is placed in the alternating magnetic field, and eddy current is generated on the surface of the metal body. The eddy current effect is utilized to convert the metal object into heat energy through the resistance in the metal object. At the same time of eddy current, a small amount of heat such as magnetic hysteresis effect, skin effect, edge effect and the like is added, so that the temperature of the metal object is rapidly increased together, and the purpose of rapid heating is realized. When the present electromagnetic eddy current heats water, because the design of the electromagnetic eddy current device is unreasonable, energy waste is more, and in the heating process, hot water and cold water are directly mixed, so that the heating is uneven, and the stability of water outlet is poor.

When the temperature of inlet water is low, the instantaneous water heater needs larger temperature rise to ensure that the temperature of outlet water can meet the use requirement, so that higher heating power is also needed, and the application of the instantaneous water heater is limited because the power exceeds the load of a household power grid of most residences due to overlarge power.

Disclosure of Invention

The utility model provides an electromagnetic eddy current heating device, to prior art not enough and defect, the utility model provides a strong, small in size, heating effect are good, and energy loss is little, the characteristics of leaving water temperature stability have.

The utility model also provides a quick heating type water heater can provide bigger temperature rise in the electric wire netting load of registering one's residence to make leaving water temperature can satisfy the use fast.

In order to achieve the above object, the present invention provides the following technical solutions.

The utility model provides an electromagnetic eddy current heating device, includes the heating plate that a plurality of superpositions set up and sets up the first heating element between two adjacent heating plates, the holding intracavity of heating plate is equipped with a plurality of baffles, and the cooperation forms between two at least baffles and overflows the unit, and a plurality of units that overflow form through the discharge orifice intercommunication on the baffle and overflow the passageway, the heating plate on be equipped with water inlet and delivery port respectively, and the holding chamber of two adjacent heating plates is linked together.

The utility model has the advantages that: the utility model discloses a heating device, the commonality is strong, small in size, through be equipped with first heating element between two adjacent heating plates, make first heating element top and below all have the heating plate, first heating element can produce alternating magnetic field because of leading to frequency conversion electric current, make the heating plate produce the interior resistance to heat of electromagnetic induction vortex by alternating magnetic field's influence, make the heating plate produce the heat, a plurality of heating plate homoenergetic produces the heat, the thermal waste has been reduced, after water gets into the holding intracavity of one of them heating plate through the water inlet, flow into another heating plate through the delivery port again, carry out the heat exchange through a plurality of heating plate and heat the back, discharge by the delivery port of back heating plate again, make the heating effect better, energy loss is little, it is stable to go out water temperature.

As an improvement of the utility model, the heating plate includes lower cover and upper cover, the upper cover is located and is covered under in order to seal the holding chamber, be equipped with the sealing washer between upper cover and the lower cover. Through the improvement, the water in the accommodating cavity is not easy to leak.

As an improvement of the utility model, the baffle interval arrange in the holding intracavity of heating plate forms one between the two adjacent baffles and overflows the unit, and adjacent two overflow the unit and cross discharge orifice intercommunication.

As an improvement of the utility model, the cross-flow holes on the two adjacent baffles are staggered to form a zigzag flow passage by communicating the flow passage in the containing cavity. Through the improvement, when the heating device works, the first heating element is electrified, the first heating element can generate an alternating magnetic field due to the fact that the frequency conversion current is electrified, the heating plate is influenced by the alternating magnetic field to generate electromagnetic induction eddy internal heat resistance, the heating plate generates heat, water enters the water inlet pipe, the water enters the accommodating cavity of one heating plate through the water inlet, the water enters the overflowing unit in the accommodating cavity through the flow holes, the water flows in the overflowing unit due to the fact that the overflowing holes in the two adjacent partition plates are arranged in a staggered mode on the horizontal plane, the water flows in an S shape along the overflowing unit, after the low-temperature water enters the accommodating cavity, the high-temperature water heated in the accommodating cavity can be pushed to flow, the low-temperature water newly entering the accommodating cavity is separated from the high-temperature water to be heated, the low-temperature water and the high-temperature water can not be mixed, the water is uniformly heated when flowing through the, hot water can flow out quickly.

As an improvement of the utility model, it is a plurality of connect through the connecting plate between the baffle. Through the improvement, the installation of the partition plates is convenient, and the plurality of partition plates and the connecting plate are integrally formed through injection molding. Through the above improvement, the manufacture of the separator is facilitated.

As the utility model discloses an improve, it is a plurality of the baffle concatenation is the cellular unit that overflows, the crisscross setting of discharge orifice on the baffle is in order to form tortuous passageway that overflows with a plurality of units that overflow in holding intracavity intercommunication.

As the utility model discloses an improve, it is a plurality of the baffle concatenation is a plurality of units that overflow of rhombus, the crisscross setting of discharge orifice in order to overflow a plurality of units and form tortuous passageway that overflows in holding intracavity intercommunication on the baffle.

As an improvement of the utility model, the holding cavity is provided with a positioning barrier strip matched with the baffle plate. Through the improvement, the partition board is stably installed.

As an improvement of the utility model, the heating plate is cylindrical or spherical or ellipsoidal or polygonal.

As an improvement of the utility model, the clearance between the two heating plates and the first heating element is respectively between 1mm and 100 mm. By the above improvement, the heat efficiency is improved.

The utility model provides an instant-heating type water heater, including control mainboard, water tank and with water tank complex second heating element, the entry of water tank and the holding chamber intercommunication of one of them heating plate, be equipped with first solenoid electric valve between the entry of water tank and the holding chamber of this heating plate, the export of water tank and the delivery port intercommunication of back heating plate, be equipped with second solenoid electric valve between the export of water tank and the delivery port of heating plate, the water inlet department of first heating plate is equipped with the detection box, detects box internal temperature sensor, the control mainboard respectively with temperature sensor, first heating element, second heating element, first solenoid electric valve and second solenoid electric valve electric connection.

The utility model has the advantages that: the utility model discloses a water heater, during initial condition, first solenoid electric valve is in the open mode, second solenoid electric valve is in the closed mode, water gets into the holding intracavity of one of them heating plate through the water inlet, reentry in the water tank, after the inflow reaches the setting value in the water tank, first solenoid electric valve closes, second heating element circular telegram, second heating element can produce alternating magnetic field because of circular telegram has the frequency conversion electric current, make the water tank receive the influence of alternating magnetic field to produce the interior heat resistance of electromagnetic induction vortex, in order to reach the setting value with the water in the water tank, during operation, first heating element circular telegram, second heating element outage, water again flows into the holding intracavity of next heating plate through the delivery port after getting into the holding intracavity of previous heating plate through the water inlet, first heating element can produce alternating magnetic field because of circular telegram has the frequency conversion electric current, make the heating plate receive the influence of alternating magnetic field to produce the interior heat resistance of electromagnetic induction vortex, so that the heating plates generate heat, and after the heating plates carry out heat exchange and are heated, the heat is discharged from the water outlet of the last heating plate. When the temperature of water entering the water inlet pipe is lower, the water is discharged from the water outlet after being heated by the heating plates, the temperature is also lower, the second electromagnetic control valve is opened at the moment, so that high-temperature preheating water in the water tank is mixed with water flowing out of the water outlet of the last heating plate, the temperature of the water flowing out of the water outlet of the last heating plate is increased after the high-temperature preheating water in the water tank is mixed with the water flowing out of the water outlet of the last heating plate, the response requirement of hot water is quickly met, the water inlet temperature is detected through the temperature sensor, so that whether the second electromagnetic valve is opened or not and the opening time is controlled, the temperature flowing out of the water outlet can be ensured to be met, the hot water time is shortened, and the temperature rise can be increased through the respective heating mode of the plurality of heating plates and the heating mode of water tank water replenishing and mixing in, the use of the user is more convenient.

As an improvement of the utility model, still be equipped with flow sensor and pressure sensor in the detection box, flow sensor and pressure sensor respectively with control mainboard electric connection. Through the improvement, the water flow state can be detected in real time.

Drawings

Fig. 1 is a schematic view of the overall structure of the heating device of the present invention.

Fig. 2 is a schematic view of the heating plate and the first heating coil of the present invention.

Fig. 3 is a schematic view of the internal structure of the heating plate of the present invention.

Fig. 4 is a schematic view of the structure of the partition board and the connecting board of the present invention.

Fig. 5 is a schematic view of the structure of the lower cover of the present invention.

Fig. 6 is a schematic structural view of a heating device according to another embodiment of the present invention.

Fig. 7 is a schematic structural view of a heating device according to another embodiment of the present invention.

Fig. 8 is a schematic diagram of a partition structure in another embodiment of the present invention.

Fig. 9 is a schematic view of a partition structure according to another embodiment of the present invention.

Fig. 10 is a schematic view of a partition structure according to another embodiment of the present invention.

Fig. 11 is a schematic view of the overall structure of the water heater of the present invention.

In the figure, 1. a heating disc; 11. an upper cover; 12. a lower cover; 121. an accommodating cavity; 122. a water inlet; 123. a water outlet; 124. positioning a stop strip; 13. a partition plate; 131. an overflowing hole; 14. an overflow channel; 15. a connecting plate; 16. a water inlet pipe; 17. a water outlet pipe; 18. a first connecting pipe; 19. a water inlet valve; 2. a first heating coil; 3. a second heating coil; 4. a water tank; 5. a control main board; 6. a second connecting pipe; 7. a third connecting pipe; 8. a first solenoid control valve; 9. a second solenoid control valve.

Detailed Description

The invention is further explained by combining the attached drawings.

Referring to fig. 1 to 5, an electromagnetic eddy current heating device includes a plurality of heating plates 1 stacked on each other and a first heating element disposed between two adjacent heating plates 1, in this embodiment, the number of the heating plates 1 is two, the first heating element is a first heating coil 2, that is, one heating plate 1 is located above the first heating coil 2, and the other heating plate 1 is located below the first heating coil 2, in addition, one heating plate 1 may be located in front of the first heating coil 2, and the other heating plate 1 is located behind the first heating coil 2, and gaps between the two heating plates 1 and the first heating coil 2 are respectively between 1mm and 100mm, so that the heating effect is better, and the heat efficiency is improved. The heating plate 1 comprises a lower cover 12 and an upper cover 11, wherein an accommodating cavity 121 is arranged in the lower cover 12, a plurality of partition plates 13 are arranged in the accommodating cavity 121, two ends of each partition plate 13 respectively abut against the inner wall of the accommodating cavity 121, overflowing holes 131 are formed in the partition plates 13, the overflowing holes 131 are circular, oval or polygonal, two adjacent partition plates 13 are matched with the inner wall and the bottom of the accommodating cavity 121 to form overflowing units, the overflowing holes 131 in the two adjacent partition plates 13 are arranged in a staggered mode to enable the overflowing units to be communicated in the accommodating cavity 121 to form a zigzag overflowing channel 14, the overflowing units are matched to form a total overflowing channel 14, the upper cover 11 is arranged on the lower cover 12 to seal the accommodating cavity 121, mounting holes are respectively formed in the upper cover 11 and the lower cover 12, the upper cover 11 and the lower cover 12 are fixedly connected by fastening bolts penetrating through the mounting holes, a flanging is arranged on the lower cover 12 and is mounted on the flanging to prevent the clapboard 13 in the accommodating cavity 121 from interfering when the fastening, and upper cover 11 downwardly extending has the hem, can cladding lower cover 12's periphery, further plays sealed effect to lower cover 12, still can set up upper cover 11 and lower cover 12 to the same shape in addition, just can machine-shaping through a set of mould, is convenient for manufacturing.

The lower cover 12 of the heating plate 1 is provided with a water inlet 122 and a water outlet 123 which are communicated with the accommodating cavity 121, wherein the water inlet 122 of the first heating plate 1 is connected with a water inlet pipe 16, the water outlet 123 is connected with the water inlet 122 of the last heating plate 1 through a first connecting pipe 18, so that the accommodating cavity 121 between the two heating plates 1 is communicated, and the water outlet 123 of the last heating plate 1 is connected with a water outlet pipe 17.

The utility model discloses a heating device, the commonality is strong, small in size, in operation, first heating coil 2 circular telegram, first heating coil 2 can produce alternating magnetic field because of circular telegram frequency conversion electric current, make two heating plates 1 receive alternating magnetic field' S influence to produce the interior resistance to heat of electromagnetic induction vortex, make heating plate 1 produce the heat, inlet tube 16 intakes, water gets into in holding chamber 121 of preceding heating plate 1 through water inlet 122, water gets into the unit flow that overflows through discharge hole 131 in holding chamber 121, get into next unit flow that overflows through discharge hole 131 again, because the crisscross setting of discharge hole 131 on two adjacent baffles 13 is with the unit flow that overflows that forms tortuous passageway in holding chamber, make water be the S-shaped flow along overflowing passageway 14, make low temperature water get into after holding chamber 121, can promote the high temperature water flow that the holding chamber 121 internal heating, make the low temperature water of newly-entering holding chamber 21 keep apart with the high temperature water of heating, can not cause low-temperature water and high-temperature water to mix, make water heat evenly when overflowing according to the passageway of overflowing, make the water stability that delivery port 123 flows out better, can flow out hot water fast, and through be equipped with first heating coil 2 between two heating plate 1, make first heating coil 2 top and below all have heating plate 1, two heating plate 1 homoenergetic produce heat, the thermal waste has been reduced, after water gets into the holding chamber 121 of preceding heating plate 1 through water inlet 122, in the holding chamber 121 of following heating plate 1 flows into through delivery port 123 again, carry out the heat exchange and heat the back through two heating plate 1, discharge by the delivery port 123 of following heating plate 1 again, make the heating effect better, energy loss is little, the leaving water temperature is stable.

Referring to fig. 6, when the number of the heating plates is two or more, adjacent heating plates are sequentially communicated, the number of the first heating coils 2 is correspondingly multiple, the multiple first heating coils 2 are arranged in parallel, one or more of the multiple first heating coils 2 are simultaneously turned on or off, when only one first heating coil 2 is provided, the power of the first heating coil is higher power in the household power grid load of the house, when two or more first heating coils 2 are provided, the sum of the powers of all the first heating coils 2 is higher power in the household power grid load of the house, specifically, the higher power refers to the remaining effective load when a user uses an air conditioner, a refrigerator, a washing machine, a kitchen appliance and other electrical appliances at the same time, the sum of the powers of the first heating coils 2 is set to the maximum power which can be carried in the remaining effective load to avoid overload, when the power of a single first heating coil 2 is small, the size of the first heating coil 2 is correspondingly small, so that the size of the heating plate is correspondingly small, the heating plates are long and thin after being stacked, the structure of the stacked heating plates can be selected according to the installation environment, and in addition, under the same total power, the price of the first heating coils is lower than that of the first heating coils.

As an improvement of the utility model, the heating plate 1 is cylindrical, the containing cavity 121 is also cylindrical, so that the heating area is the largest, the heating effect is the best, the heating plate 1 is made of ferrite 430 stainless steel material or other excitation materials, which is beneficial to heat exchange to improve efficiency, and the ferrite 430 stainless steel can meet the functions of rust prevention and magnetic conduction, and has good welding performance and forming performance, which is convenient for processing and manufacturing, a plurality of baffles 13 are connected through a connecting plate 15, a plurality of baffles 13 and a connecting plate 15 are integrally formed by injection molding, which is convenient for manufacturing the baffles 13, installing the baffles 13 and the connecting plate 15 which are made of engineering plastic materials or polymer organic materials or other metal materials, etc., so that the surfaces of the baffles 13 are smooth, the adsorption of impurities in water can be reduced, the obstruction of the flow velocity of water flow is reduced, so as to achieve the purpose of making the water flow in the heating, the quantity of connecting plate 15 is four, and four connecting plates 15 are the rhombus and distribute, adopt the rhombus structure can keep the stability of grid more, and difficult exogenic action that receives is not hard up, considers that baffle 13 is whole to be soaked in aqueous, and the hydrostatic pressure that receives all around offsets each other, only receives the impact of rivers.

As an improvement, install in holding chamber 121 when baffle 13, when upper cover 11 locates on the lower cover 12, the up end of baffle 13 flushes with the lower terminal surface of upper cover 11 mutually, make water when the holding chamber 121 flows, be difficult for overflowing holding chamber 121, and be equipped with the sealing washer between upper cover 11 and the lower cover 12, it is good to have guaranteed the leakproofness, make the water in holding chamber 121 be difficult for revealing, be equipped with in holding chamber 121 simultaneously with baffle 13 matched with location blend stop 124, the quantity of location blend stop 124 is two, when a plurality of baffles 13 are installed in holding chamber 121, location blend stop 124 is located the both ends of baffle 13, thereby it is fixed with whole baffle 13, make baffle 13 installation stable, in order to prevent when intaking, lead to baffle 13 to rock because of the impact of rivers, make baffle 13 install stably.

In addition, referring to fig. 7, as another embodiment of the present invention, the whole structure is the same as the previous embodiment, except that: heating plate 1 is globular, and heating plate 1 also includes upper cover and lower cover, and holding chamber 121 also is globular, and the shape after a plurality of baffles 13 in holding chamber 121 connect also corresponding be the arc, and the shape of first heating coil 2 is also corresponding be the arc, through setting up heating plate 1 to the arc for the structure is compacter. The heating plate 1 may also be polygonal column-shaped, conical, ellipsoidal, etc.

Referring to fig. 8 and 9, as another embodiment of the present invention, the whole structure is the same as the above, except that: a plurality of baffles concatenations are a plurality of honeycomb units that flow through, the crisscross setting of discharge orifice on the baffle is in order to flow through the unit at the holding intracavity intercommunication with a plurality of, and form tortuous passageway that flows through, in this embodiment, a plurality of units that flow through flow orifice cooperation formation two and flow through, the water inlet is intake back respectively through two and flow through the passageway circulation, discharge by the delivery port again, honeycomb baffle accessible location blend stop or gim peg etc. carry on spacingly, the solution leads to baffle 13 to rock because of the impact of rivers, make baffle 13 install stably.

Referring to fig. 10, as another embodiment of the present invention, the whole structure is the same as the above, except that: a plurality of baffles splice and are a plurality of units that flow over of rhombus, the crisscross setting of discharge orifice on the baffle is in order to flow over the unit and form tortuous passageway that flows over in holding intracavity intercommunication, in this embodiment, discharge orifice and the unit cooperation that flows over form one and flow over the passageway, should flow over the passageway circulation after the water inlet intake, discharge by the delivery port again, in addition discharge orifice and the unit cooperation that flows over can also cooperate and form two and more than flow over the passageway, flow over the passageway through two and more than respectively after the water inlet intake, discharge by the delivery port again. The baffle of rhombus accessible location blend stop or gim peg etc. carry on spacingly, solve and lead to baffle 13 to rock because of the impact of rivers for baffle 13 installation is stable.

Referring to fig. 11, an instantaneous water heater includes an excitation device, a control motherboard 5, a water tank 4 and a second heating element matched with the water tank 4, the second heating element is a second heating coil 3, the water tank 4 is connected to a first connecting pipe 18 through a second connecting pipe 6, so that the water tank 4 is communicated with a containing cavity of a previous heating plate, in addition, the water tank 4 can also be directly communicated with a containing cavity of a next heating plate, the water tank 4 can also be directly communicated with a water inlet pipe, a first electromagnetic control valve 8 is arranged between the first connecting pipe 18 and the second connecting pipe 6, the water tank 4 is connected to a water outlet pipe 17 through a third connecting pipe 7, a second electromagnetic control valve 9 is arranged between the third connecting pipe 7 and the water outlet pipe 17, plastic package housings are arranged outside two heating plates 1 and the first heating coil 2, plastic package housings are arranged outside the water tank 4 and the second heating coil 3, and the, Fixation and modularization. Lead is plated or lead foil is pasted on the surface of the plastic package shell, so that the electromagnetic radiation shielding effect is achieved, and the influence of radiation is effectively reduced. The utility model discloses a control mainboard 5, including the main power supply, the main power supply passes through excitation device output medium-high frequency current, and medium-high frequency current rethread first heating coil 2, second heating coil 3 are in order to produce magnetic field, make heating plate 1 and water tank 4 receive alternating magnetic field's influence to produce the interior heat of hindering of electromagnetic induction vortex, also are equipped with the plastic envelope shell outside control mainboard 5 and the excitation device, still are equipped with radiator fan in this plastic envelope shell to 5 excitation devices of control mainboard cool off. And then a plurality of parts coated by the plastic package shell are arranged in a water heater shell, a drainage groove is arranged on the water heater shell, a groove is also arranged at the bottom of the water heater shell and used for collecting water drops which are condensed by permeating fog and water drops which leak when a pipeline joint is not sealed and are discharged to the outside of the water heater through a one-way external pipeline, so that the humidity problem is solved. The pipeline in the water heater and the heating plate 1 are coated by heat insulation materials so as to reduce energy loss and change of outlet water temperature.

The water inlet pipe 16 is connected with a detection box and a water inlet valve 19, a temperature sensor is arranged in the detection box, the control mainboard 5 is respectively electrically connected with the temperature sensor, the first heating coil 2, the second heating coil 3, the first electromagnetic control valve 8 and the second electromagnetic control valve 9, a mains supply is electrically connected with the control mainboard 5 through a rectification circuit and a filter circuit, the temperature sensor is electrically connected with the control mainboard 5 through an AD conversion module, and the control mainboard 5 is electrically connected with the first heating coil 2, the second heating coil 3, the water inlet valve 19, the first electromagnetic control valve 8 and the second electromagnetic control valve 9 through a DA module.

The utility model discloses a water heater, during initial state, first solenoid electric valve 8 is in the open mode, second solenoid electric valve 9 is in the closed condition, inlet tube 16 intakes, water gets into in the holding chamber 121 of one of them heating plate 1 through water inlet 122, again through first connecting pipe 18, second connecting pipe 6 gets into in the water tank 4, after the inflow reaches the setting value in the water tank 4, first solenoid electric valve 8 closes, second heating coil 3 circular telegram, second heating coil 3 can produce alternating magnetic field because of leading to frequency conversion current, make the water tank produce the interior resistance to heat of electromagnetic induction vortex by alternating magnetic field's influence, in order to reach the setting value with the water in the water tank 4, after water and cooling in the water tank 4 are less than the setting value, second heating coil 3 circular telegrams can be heated once more, in order to guarantee that the hydroenergy in the water tank 4 can guarantee invariable all the time. When the second heating coil 3 is turned on to heat the water in the water tank 4, the water inlet valve 19 is closed by the control main board 5, so that the cold water is prevented from entering the water tank 4 and affecting the outlet water temperature value of the water tank 4.

In order to improve the heating effect, in the load of the household power grid, the first heating coil 2 and the second heating coil 3 are set to have larger power, when the heating device works, the first heating coil 2 and the second heating coil 3 are alternatively started, the first heating coil 2 and the second heating coil 3 are prevented from overloading, when the number of the first heating coils 2 is correspondingly multiple, the total power of the multiple first heating coils 2 is set to be larger power in the load of the household power grid, the multiple first heating coils 2 are simultaneously switched on or off one or more of the multiple first heating coils 2, specifically, the larger power refers to the residual effective load when a user uses an air conditioner, a refrigerator, a washing machine, a kitchen appliance and other electrical equipment facilities simultaneously, and the sum of the power of the first heating coils 2 and the power of the second heating coils 3 is set to be the maximum power capable of being carried in the residual effective load.

When the water heater works, the first heating coil 2 is powered on, the second heating coil 3 is powered off, water enters the accommodating cavity 121 of the previous heating plate 1 through the water inlet 122 and then flows into the next heating plate 1 through the water outlet 123, the first heating coil 2 generates a magnetic field, the heating plates are influenced by the alternating magnetic field to generate electromagnetic induction eddy internal heat resistance, so that the heating plates generate heat, the heating plates are heated through heat exchange of the two heating plates 1 and then are discharged from the water outlet 123 of the next heating plate 1, when the temperature of the inlet water of the water inlet pipe 16 is low, the heating plates 1 are heated and then discharge water through the water outlet 123, the temperature is also low, at the moment, the second electromagnetic control valve 9 is opened, so that high-temperature preheating water in the water tank 4 is discharged through the third connecting pipe 7 to be mixed with the water in the water outlet pipe 17, and the temperature of the water in the water outlet pipe 17 is increased after mixing because the high-temperature preheating water in the water tank, through temperature sensor, detect into water temperature, thereby whether control second solenoid valve is opened and opening time, in order to guarantee that the temperature that outlet pipe 17 flows can satisfy the use, shorten the response time of outlet water temperature stability, it is more convenient that the user uses, the water that can not reach the requirement temperature of user's in-process emission waiting for hydrothermal, thereby the water consumption has been practiced thrift, can be in the electric wire netting load of registering one's residence, the mode of heating respectively through first heating coil 2 and second heating coil 3 and the high temperature preheating water in the water tank 4 and the water in the outlet pipe 17 pass through the heating mode that the moisturizing mixes, greater temperature rise is provided, so that outlet water temperature can satisfy the use fast, it is more convenient that the user uses. In addition, the temperature of the inlet water can be detected through a temperature sensor, the water flow of the inlet water of the water inlet valve 19 is controlled, if the water flow flowing into the heating plates 1 is reduced, the temperature rise of the two heating plates 1 can be increased under the same power, the higher temperature rise of the water can be increased, and the outlet water temperature can be quickly met.

The data relation between the water inlet temperature and the opening time of the second electromagnetic control valve 9 is preset on the control mainboard 5, when the temperature sensor detects the water temperature, the control mainboard 5 selects the opening time of the second electromagnetic control valve 9 according to the preset data, and the opening time of the second electromagnetic control valve 9 is correspondingly different according to the difference of the water inlet temperature, so that the stability of the water outlet temperature is ensured. The control mainboard 5 can be connected with the operation terminal through the communication module, so that the operation terminal can monitor the state of the water heater, and the operation terminal can realize various operation modes of the remote control water heater through the control mainboard 5, thereby realizing intellectualization and Internet of things.

The detection box is also internally provided with a flow sensor and a pressure sensor, the flow sensor and the pressure sensor are respectively electrically connected with the control mainboard 5 through the AD conversion module, the flow sensor and the pressure sensor are used for detecting the inflow and the inflow pressure, if the detection data has deviation with a set value, the control mainboard 5 is used for adjusting the inflow and the current or the water outlet of the preheated high-temperature water and other correction result parameters, so that the final outlet water meets the set requirement. In addition, still set up the water quality testing sensor in the detection box, the water quality testing sensor passes through AD conversion module and 5 electric connection of control mainboard, through the water quality testing sensor in order to detect the quality of water condition of intaking, guarantees that the quality of water of intaking can accord with national or industry standard.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims (10)

1. An electromagnetic eddy current heating apparatus, characterized in that: including the heating plate of a plurality of stacks settings with set up the first heating element between two adjacent heating plates, the holding intracavity of heating plate is equipped with a plurality of baffles, and the cooperation forms between two at least baffles and overflows the unit, and is a plurality of it forms through the discharge orifice intercommunication on the baffle to overflow the unit and overflows the passageway, the heating plate on be equipped with water inlet and delivery port respectively, and the holding chamber of two adjacent heating plates is linked together.

2. An electromagnetic eddy current heating apparatus according to claim 1, characterized in that: the heating plate comprises a lower cover and an upper cover, the upper cover is arranged on the lower cover to seal the containing cavity, and a sealing ring is arranged between the upper cover and the lower cover.

3. An electromagnetic eddy current heating apparatus according to claim 1, characterized in that: the baffle interval arrange in the holding intracavity of heating plate forms between the two adjacent baffles and overflows the unit, and two adjacent units that overflow pass through the discharge orifice intercommunication on the baffle, and the discharge orifice crisscross setting on two adjacent baffles is in order to form tortuous passageway that overflows in the holding intracavity.

4. An electromagnetic eddy current heating apparatus according to claim 3, characterized in that: the partition plates are connected through connecting plates, and the partition plates and the connecting plates are integrally formed through injection molding.

5. An electromagnetic eddy current heating apparatus according to claim 1, characterized in that: the heating plate is cylindrical or spherical or ellipsoidal or polygonal.

6. An electromagnetic eddy current heating apparatus according to claim 1, characterized in that: a plurality of the baffle concatenation is honeycomb-shaped unit that overflows, the crossing hole staggered arrangement on the baffle is in order to form tortuous passageway that overflows with a plurality of units that overflow connect in the holding intracavity.

7. An electromagnetic eddy current heating apparatus according to claim 1, characterized in that: a plurality of the baffle concatenation is the rhombus unit that overflows, the crisscross setting of discharge orifice on the baffle is in order to connect a plurality of units that overflow at the holding intracavity and form tortuous passageway that overflows.

8. An electromagnetic eddy current heating apparatus according to claim 1, characterized in that: the gaps between the two heating plates and the first heating coil are respectively 1mm-100 mm.

9. An instantaneous water heater using the heating device according to any one of claims 1 to 8, characterized in that: including control mainboard, water tank and with water tank complex second heating element, the entry of water tank and the holding chamber intercommunication of one of them heating plate, be equipped with first solenoid electric valve between the entry of water tank and the holding chamber of this heating plate, the export of water tank and the delivery port intercommunication of back heating plate, be equipped with second solenoid electric valve between the export of water tank and the delivery port of heating plate, the water inlet department of previous heating plate is equipped with the detection box, detects the interior temperature sensor of box, the control mainboard respectively with temperature sensor, first heating element, second heating element, first solenoid electric valve and second solenoid electric valve electric connection.

10. The instantaneous water heater according to claim 9, characterized in that: and a flow sensor and a pressure sensor are also arranged in the detection box, and the flow sensor and the pressure sensor are respectively and electrically connected with the control mainboard.

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