CN109965698B - Electromagnetic induction heating water dispenser - Google Patents
Electromagnetic induction heating water dispenser Download PDFInfo
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- CN109965698B CN109965698B CN201910320999.0A CN201910320999A CN109965698B CN 109965698 B CN109965698 B CN 109965698B CN 201910320999 A CN201910320999 A CN 201910320999A CN 109965698 B CN109965698 B CN 109965698B
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- 239000008236 heating water Substances 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 273
- 238000010438 heat treatment Methods 0.000 claims abstract description 129
- 238000001514 detection method Methods 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 13
- 230000035622 drinking Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000005485 electric heating Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/4403—Constructional details
- A47J31/441—Warming devices or supports for beverage containers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
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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
Abstract
The invention discloses an electromagnetic induction heating water dispenser, comprising: a housing having an exposed water outlet tap; the magnetic energy heating unit comprises a heating rod, an insulating tube which is coaxially arranged with the heating rod and has an inner diameter 0.2-20 mm larger than the outer diameter of the heating rod, an electromagnetic coil which is wound on the outer surface of the insulating tube, and a heating channel which is formed between the inner wall of the insulating tube and the outer wall of the heating rod, wherein a first end of the heating channel is provided with a cold water inlet which is communicated with a water outlet of the water storage tank through a water supply pipe, and a second end of the heating channel is communicated with a water outlet tap. The invention has simple structure, quick heating and safe and reliable use.
Description
Technical Field
The invention relates to the technical field of water dispensers, in particular to a safe and reliable electromagnetic induction heating water dispenser.
Background
Electromagnetic induction heating is an induction heating device that converts electrical energy into magneto-thermal energy using the principle of electromagnetic induction. When externally connected with alternating current, the power control module (generally an IGBT module) is utilized to generate alternating current to the induction coil so as to enable the induction coil to generate alternating electromagnetic fields, and according to the law of electromagnetic induction, countless small eddy currents are generated when magnetic lines of force in the magnetic fields pass through the metal heating part with high resistance characteristics, so that water or food contacted with the metal heating part can be heated, and heating requirements of people for cooking, washing, bathing, cooking and the like are met.
A non-water storage type water dispenser needs to have a capability of rapidly generating hot water, and then can discharge the required hot water when a user opens a water outlet button. In the existing water dispenser heated by the electric heating tube, the electric heating film or the electric heating wire, the rapid heating can be realized by adjusting the output power, so that the hot water is rapidly output. However, because water is in direct contact with the electric heating tube, the electric heating film or the electric heating wire in the use process, potential safety hazards of electric shock can be generated when electric leakage exists.
Disclosure of Invention
The invention provides a safe and reliable electromagnetic induction heating water dispenser, which realizes water-electricity separation through a magnetic energy heating body, so that the water dispenser is safe to use and can rapidly discharge water to meet the use needs of users.
The invention is realized by adopting the following technical scheme: a safe and reliable electromagnetic induction heating water dispenser, comprising: a housing having an exposed water outlet tap; the magnetic energy heating unit comprises a heating rod, an insulating tube which is coaxially arranged with the heating rod and has an inner diameter 0.2-20 mm larger than the outer diameter of the heating rod, an electromagnetic coil which is wound on the outer surface of the insulating tube, and a heating channel which is formed between the inner wall of the insulating tube and the outer wall of the heating rod, wherein a first end of the heating channel is provided with a cold water inlet which is communicated with a water outlet of the water storage tank through a water supply pipe, and a second end of the heating channel is communicated with a water outlet tap.
The second end of the heating channel is provided with a water-steam separation box, and the water-steam separation box is provided with a hot water inlet communicated with the second end of the heating channel, a hot water outlet communicated with the water outlet tap and an exhaust port higher than the hot water outlet.
The inner diameter of the insulating tube is 0.4-3 mm larger than the outer diameter of the heating rod, so that the axial thickness of the heating channel in the cross section is 0.2-1.5 mm.
The shell comprises a metal shell and an insulating panel positioned on the outer side face of the metal shell, and the insulating panel is exposed out of the water outlet faucet.
The shell is also internally provided with an IGBT module electrically connected with the electromagnetic coil and a control circuit board for outputting control signals to enable the IGBT module to output corresponding driving frequency.
The shell is also internally provided with a water shortage detection element, and the control circuit board is provided with a controller for stopping the magnetic energy heating body from generating heat through the IGBT module when judging that water shortage occurs according to the detection result of the water shortage detection element.
The water shortage detection element comprises a water level sensor which is arranged in the water storage tank and used for detecting the water level height in the water storage tank, and the output end of the water level sensor is electrically connected with the first data port of the controller.
The water shortage detection element comprises a flow sensor arranged on a water outlet of the water storage tank, a water supply pipe or a cold water inlet of the magnetic energy heating body, and a second data port of the flow sensor is electrically connected.
The water shortage detection element comprises a temperature sensor arranged between the second end of the heating channel and the water outlet tap, and the output end of the temperature sensor is electrically connected with a third data port of the controller.
Wherein, be equipped with the control box below the storage water tank, be equipped with the radiator that sets up with IGBT module contact in this control box, and the delivery pipe extends to the radiator and sets up with the radiator contact, and control circuit board and IGBT module all set up in the control box and control circuit board is located the top of IGBT module.
Compared with the prior art, the invention has the advantages of simple structure, quick heating, safe and reliable use, and the concrete aspects are as follows:
1. according to the invention, the electricity on the electromagnetic coil is isolated from water in the electromagnetic coil through the insulating tube, so that the leakage risk is reduced, the use safety is improved, and the space for arranging the heating channel is smaller, so that only a small amount of water in unit time can flow through the heating channel to enable cold water to be rapidly heated, and the purpose of rapidly discharging water is realized.
2. According to the invention, the water-vapor separation box is arranged at the water outlet end of the magnetic energy heating body, and water vapor is discharged from the air outlet above the water-vapor separation box, so that the water vapor is not mixed in hot water and is discharged together from the hot water outlet through the water outlet tap, hot water or boiled water is prevented from splashing and scalding users in the water outlet process, and the use safety is improved.
3. The control circuit board is used for assisting in judging whether water is deficient or not through the water level sensor, the flow sensor or/and the temperature sensor, so that the magnetic energy heating body is stopped to stop continuously heating at the first time when the water dispenser is deficient, dry heating damage is avoided, and conditions are provided for improving the reliability and the service life of the water dispenser.
4. According to the invention, the insulating panel is arranged on the outer side surface of the metal shell, so that even if electric leakage occurs in the using process of the electromagnetic induction heating body, the user can contact with the insulating panel in the operating and using process of the water dispenser, the electric shock risk can be reduced to a certain extent, and the use safety performance is improved. In addition, the surface of the insulating panel adopting the glass plate is smooth, so that the whole panel is attractive and convenient to clean.
5. The cold water of the water storage tank is used for radiating the radiator through the water supply pipe, so that the reliability of the IGBT module is improved, and the IGBT module and the control circuit board are arranged in the control box to prevent water leakage from being damaged, so that the safety and the reliability of the water dispenser are further improved.
Drawings
Fig. 1 is a schematic perspective view of a water dispenser.
FIG. 2 is a schematic view of the internal part of the water dispenser with the outer casing removed.
FIG. 3 is a schematic diagram of the waterway connection between the water storage tank and the magnetic energy heating body.
Fig. 4 is a schematic diagram of the internal structure of the magnetic energy heating element.
Fig. 5 is a schematic diagram of an exploded structure of the magnetic energy heating element.
Fig. 6 is a schematic structural view of the control box.
Fig. 7 is a schematic diagram of the connection relationship of the radiator, the IGBT module, and the water supply pipe.
Detailed Description
In order to further describe the technical means and effects adopted by the present application to achieve the preset purpose, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the present application with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
As shown in fig. 1, 2 and 3, the present invention discloses an electromagnetic induction heating water dispenser (also referred to as a "water dispenser") comprising: a housing 1, exposing an operation panel 14 and a water outlet tap 15 provided in the housing 1; the magnetic energy heating device comprises a water storage tank 2 which is arranged in a shell 1 and is communicated with an external water source through a water inlet pipe 61, a magnetic energy heating body 4 which is connected with the water storage tank 2 through a water supply pipe 62, an IGBT module 52 which is electrically connected with the magnetic energy heating body 4, and a control circuit board 51 which is electrically connected with the IGBT module 52.
The water storage tank 2 is provided with a water inlet 21 communicated with an external water source through a water inlet pipe 61 and a water outlet 22 communicated with the magnetic energy heating body 4 through a water supply pipe 62, and a floating ball mechanism for automatically feeding water is arranged in the water storage tank 2. For example, the floating ball mechanism comprises a lever with the middle part fixed in the water storage tank 2, buoyancy parts respectively arranged at two ends of the lever and a water sealing part positioned above the water inlet 21, so that when the water level in the water storage tank 2 descends, the buoyancy parts follow the water level to descend so that the water sealing part is tilted upwards under the action of the lever and leaves the water inlet 21, and water of an external water source automatically supplements water for the water storage tank 2 through the water inlet pipe 61; when the buoyancy part rises in the water supplementing process, the water sealing part moves downwards under the lever action to block the water inlet 21 again so as to stop water inflow. So that the water storage tank 2 can automatically supply water from an external water source.
The water supply pipe 62 is further provided with a water pump 63, the water pump 63 is connected with a power supply through a controllable switch (for example, the controllable switch is a relay), and a control end of the controllable switch is electrically connected with one of the control ports of the control circuit board 51 so as to control the on-off of the controllable switch of the control circuit board 51 to start or stop the water pump 63. Even, the controller can also adjust the water outlet flow of the water pump 63 by controlling the on-off time of the water pump 63 in unit time, and the water outlet flow of the water pump 63 is adjusted to enable the water to enter the magnetic energy heating body 4 to be matched with the heating power. The water storage tank 2 is sent to the magnetic energy heating body 4 through the water pump, so that cold water can be ensured to smoothly enter the magnetic energy heating body 4, and the phenomenon that the magnetic energy heating body 4 lacks water and is dry-burned in the heating process is avoided.
Further shown in connection with fig. 4 and 5. The magnetic energy heating element 4 specifically includes: a heating rod 40 for inducing heat generation in the high-frequency electromagnetic field, an insulating tube 41 sleeved on the outer side surface of the heating rod 40, an electromagnetic coil 42 for generating the high-frequency electromagnetic field when the high-frequency alternating current is supplied, the electromagnetic coil 42 being wound on the outer surface of the insulating tube 41; wherein the insulating tube 41 and the heating rod 40 are coaxially arranged, and the inner diameter of the insulating tube 41 is 0.2-20 mm larger than the outer diameter of the heating rod 40, so that a heating channel 43 is formed between the inner wall of the insulating tube 41 and the outer wall of the heating rod 40, a first end of the heating channel 43 is provided with a cold water inlet 48, the cold water inlet 48 is communicated with the water outlet 22 of the water storage tank 2 through a water supply pipe 62, and a second end of the heating channel 43 is communicated with the water outlet tap 15; the heating channel 43 surrounds the outer wall of the heating rod 40, and the axial thickness of the heating channel 43 in the cross section is 0.1 mm-10 mm. Therefore, the electric on the electromagnetic coil 42 is isolated from the water in the electromagnetic coil 42 through the insulating tube 41 to realize water-electricity separation, so that the leakage risk is reduced, the use safety is improved, and the space for arranging the heating channel 43 is smaller, so that only a small amount of water in unit time can flow through the heating channel 43, and the cold water can be rapidly heated, thereby realizing the purpose of rapid water outlet.
In one embodiment, a water vapor separation cartridge 44 is provided at the second end of the heating channel 43, and a hot water inlet 441 in communication with the second end of the heating channel 43, a hot water outlet 443 in communication with the water tap 15, and an exhaust port 442 positioned higher than the hot water outlet 443 are provided on the water vapor separation cartridge 44. Therefore, hot water or boiled water enters the water-vapor separation box 44 from the water outlet end of the heating channel 43 through the hot water inlet 441, and the water vapor is discharged from the air outlet 442 above the water-vapor separation box 44, so that the water vapor is not mixed in the hot water and is discharged together through the water outlet 443 and the water outlet faucet 15, and the hot water or the boiled water is prevented from splashing and scalding a user in the water outlet process.
In one embodiment, the inner diameter of the insulating tube 41 is 0.4-3 mm greater than the outer diameter of the heater rod 40, so that the axial thickness of the heating channel 43 in the cross section is 0.2-1.5 mm, ensuring that only a small amount of water can flow through the heating channel 43 per unit time, thereby providing a realization condition for rapid water outflow. Wherein the heating rod 40 is made of a metal having high resistance characteristics such as an iron tube/column, a stainless steel tube/column, a nickel tube/column, etc., and a material having low resistance characteristics such as an aluminum tube/column, a ceramic tube/column, a glass tube/column, etc., is not suitable for use as the heating rod 40; the insulating tube 41 is cylindrical and is sleeved outside the heating rod 40, the insulating tube 41 is made of a material with good insulating property and good heat conducting capability, such as a glass tube, a quartz tube or a microcrystalline tube, and the like, and the good heat conducting capability can ensure that heat generated by the electromagnetic coil 42 can be timely conducted in the working process so as to prevent the electromagnetic coil 42 from dry burning due to poor heat dissipation.
In one embodiment, the magnetic energy heating body 4 further includes first and second end cap portions provided at both ends of the heating channel 43, respectively, for fixing the heating rod 40 and both ends of the insulating tube 41, respectively. The first end cover part and the second end cover part have the same structure, each comprises a cover body 45 and a joint 47, wherein the cover body 45 is connected with the tail end of the insulating tube 41 in a sealing way through a sealing ring 46, the joint 47 is arranged on the cover body 45, two tail ends of the joint 47 are respectively provided with a first connecting interface 471 and a second connecting interface 472, the first connecting interface 471 is arranged in an exposed way, the second connecting interface 472 is positioned in the insulating tube 41 and fixedly connected with the heating rod 40, the tail end of the second connecting interface 472 is provided with a limiting hole 4721, and the tail end of the heating rod 40 is arranged in the limiting hole 4721. And the cold water inlet 48 is provided on the joint 47 of the first end cap portion, and the cold water inlet 48 communicates with the first connection port 471 of the joint 47 of the first end cap portion. Wherein, the cover 45 and the connector 47 may be provided as an integrally formed structure. In the embodiment shown in fig. 5, the cover 45 and the connector 47 are in a split connection structure, wherein a through hole 451 is formed in the middle of the cover 45, and the middle of the connector 47 is sealed in the through hole 451. In addition, a fixing seat 452 is arranged on the cover 45, and the quick water outlet device is conveniently fixed in the implementation process through the fixing seat 452. In addition, the first connection port 471 of the connector 47 of the first end cap portion is exposed to a drain provided. Under the normal use state, the drain outlet is blocked by the rubber cover so that water cannot flow out of the drain outlet; when the magnetic energy heating body 4 needs to be washed, the glue cover of the sewage outlet is opened, so that the water in the heating channel 43 can be used for discharging impurities from the sewage outlet.
In one embodiment, in order to further improve the reliability of the water dispenser, the casing 1 of the water dispenser is further provided with a water shortage detection element, and the control circuit board 51 is provided with a controller for stopping the magnetic energy heating body 4 from generating heat through the IGBT module 52 when judging that water shortage occurs according to the detection result of the water shortage detection element, for example, the controller uses a model AT89C51 singlechip. One of the control ports (such as the P0.1 pin of the singlechip) of the singlechip is electrically connected with the IGBT module 52 to output a control signal to enable the IGBT module 52 to output a corresponding driving frequency to the magnetic energy heating element 4, so that the magnetic energy heating element 4 generates magnetic field induction heating under the driving frequency. The general knowledge of those skilled in the art can refer to the prior art, such as chinese patent application CN2010101783087, for how the control circuit board 51 controls the IGBT module 52 to generate the driving frequency to adjust or change the heating power of the magnetic energy heating element 4 to achieve the magnetic energy induction heating.
In one embodiment, the water shortage detection element includes a water level sensor 7 disposed in the water storage tank 2 and used for detecting the water level in the water storage tank 2, an output end of the water level sensor 7 is electrically connected to a first data port (such as a pin P3.1 of a singlechip) of the controller, the water level sensor 7 sends the water level information in the water storage tank 2 to the controller, and when the water level in the water storage tank 2 is lower than a preset water level threshold value, the controller stops the IGBT module 52 to make the magnetic energy heating element 4 not continuously generate heat, so as to avoid the magnetic energy heating element 4 from being damaged due to dry heating in the water shortage state.
In one embodiment, the water shortage detection element includes a flow sensor 8 disposed at the water outlet 22 of the water storage tank 2, the water supply pipe 62 or the cold water inlet 48 of the magnetic energy heating element 4, so that water in the water storage tank 2 enters the magnetic energy heating element 4 from the cold water inlet 48 after passing through the flow sensor 8, the water entering the magnetic energy heating element 4 from the water storage tank 2 is metered by the flow sensor 8, and a second data port (such as pin P3.2 of the single chip microcomputer) of the flow sensor 8 is electrically connected. Therefore, when the water dispenser is in operation, if the water storage tank 2 is in a water shortage state, the flow data of the P3.2 pin output to the singlechip by the flow sensor 8 is obviously abnormal (for example, the flow data obviously deviates from a normal range or even is 0), so that the controller stops the IGBT module 52 when the flow data output by the flow sensor 8 is obviously abnormal so as to ensure that the magnetic energy heating body 4 does not continue to heat, and the magnetic energy heating body 4 is prevented from being damaged by dry burning in the water shortage state.
In one embodiment, the water shortage detection element comprises a temperature sensor 9 arranged between the second end of the heating channel 43 and the outlet tap 15, which temperature sensor 9 is adapted to detect the temperature of the hot water flowing out of the outlet tap 15. Preferably, the temperature sensor 9 is fixedly arranged in the water-vapor separation box 44 so as to avoid touching the temperature sensor 9. The output end of the temperature sensor 9 is electrically connected to a third data port (such as the P3.3 pin of the singlechip) of the controller, and the temperature sensor 9 sends the outlet water temperature information of the second end of the heating channel 43 to the controller. For example, the water outlet temperature is set to 80 ℃, when the water dispenser is in a water shortage state during operation, according to the fact that the temperature sensor 9 is arranged far from the second end of the heating channel 43, the temperature sensor 9 may be significantly lower than 80 ℃ (for example, suddenly jumps to 65 ℃) or significantly higher than 80 ℃ (for example, because the temperature sensor 9 is close to the magnetic energy heating body 4, the temperature is higher because the heating tube 40 senses a larger heating value, so that the detection temperature of the temperature sensor 9 is 105 ℃), therefore, the controller judges that the water storage tank 2 is in a water shortage state when the water outlet temperature is significantly deviated from the set water outlet temperature according to the detection water outlet temperature of the temperature sensor 9, and at the moment, the controller stops the operation of the IGBT module 52 to enable the magnetic energy heating body 4 not to continue heating, so that the magnetic energy heating body 4 is prevented from being damaged due to dry heating in the water shortage state.
Therefore, the water dispenser of the invention is assisted by the control circuit board 51 through the water level sensor 7, the flow sensor 8 or/and the temperature sensor 8 to judge whether the water storage tank 2 is deficient, so that the magnetic energy heating body 4 is stopped to continue heating at the first time when the water dispenser is deficient, thereby avoiding dry heating damage, and providing realization conditions for improving the reliability and the service life of the water dispenser.
In one embodiment, the housing 1 includes a metal shell 11, an insulating panel 12 located on the outer side of the metal shell 11, an operating panel 14 exposing the insulating panel 12, and a water outlet tap 15, the water outlet tap 15 being in communication with the magnetic energy heating body 4. Because the insulating panel 12 is arranged on the outer side surface of the metal shell 11, the body of a user is directly contacted with the insulating panel 12 in the process of operating the water dispenser through the operating panel 14, even if the electromagnetic induction heating body is subjected to electric leakage conduction to the metal shell 11, the body of the user is directly contacted with the insulating panel 12 in the process of using the water dispenser and cannot be contacted with the metal shell 11, so that the electric shock risk can be reduced, and the safety performance of the water dispenser is improved. Wherein, a water receiving tray 16 exposing the insulating panel 12 is arranged under the water outlet tap 15, and a user directly places a water cup on the water receiving tray 16 to enable hot water to flow into the water cup from the water outlet tap 15. The insulating panel 12 is also provided with a water receiving groove 13 which is arranged between the water outlet tap 15 and the water receiving disc 16 in a concave manner, and the water cup with a larger cup opening size can be matched with the water dispenser for use by arranging the concave water receiving groove 13.
As shown in connection with fig. 6 and 7, in one embodiment, a control box 3 is provided in the housing 1, a control circuit board 51 and an IGBT module 52 are both provided in the control box 3, and the control circuit board 51 is located above the IGBT module 52. The bottom of the control box 3 is provided with a fixing part 31, and is fixed in the housing 1 by the fixing part 31. And the IGBT module 52 is in contact with the radiator 54 fixed in the control box 3, and the water supply pipe 62 extends to the radiator 54 and is in contact with the radiator 54, so that the cold water in the water supply pipe 62 dissipates heat to the radiator 54 to improve the heat dissipation performance and the heat dissipated by the IGBT module 52 preheats the cold water in the water supply pipe 62. Among them, the water supply pipe 62 is preferably made of a material having excellent heat conductivity, such as an aluminum pipe or a copper pipe. The control box 3 is provided below the water storage tank 2, and ensures that cold water in the water storage tank 2 can dissipate heat from the radiator 54 through the water supply pipe 62. The control box 3 has the advantages of avoiding the damage to the control circuit board 51 or the IGBT module 52 caused by water leakage of the water storage tank 2, further improving the safety of the water dispenser, and ensuring that cold water in the water storage tank 2 can dissipate heat of the radiator 54 through the water supply pipe 62 so as to improve the working reliability of the water dispenser.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (7)
1. An electromagnetic induction heating water dispenser comprising: a housing (1), the housing (1) having an exposed outlet tap (15); a water storage tank (2) and a magnetic energy heating body (4) which are arranged in the shell (1); the magnetic energy heating element (4) is characterized by comprising a heating rod (40), an insulating tube (41) which is coaxially arranged with the heating rod (40) and has an inner diameter which is 0.2-20 mm larger than the outer diameter of the heating rod (40), an electromagnetic coil (42) which is wound on the outer surface of the insulating tube (41), and a heating channel (43) which is formed between the inner wall of the insulating tube (41) and the outer wall of the heating rod (40), wherein a first end of the heating channel (43) is provided with a cold water inlet (48), the cold water inlet (48) is communicated with a water outlet (22) of the water storage tank (2) through a water supply pipe (62), and a second end of the heating channel (43) is communicated with a water outlet tap (15);
a water-vapor separation box (44) is arranged at the second end of the heating channel (43), and a hot water inlet (441) communicated with the second end of the heating channel (43), a hot water outlet (443) communicated with the water outlet tap (15) and an exhaust port (442) higher than the hot water outlet (443) are arranged on the water-vapor separation box (44);
the inner diameter of the insulating tube (41) is 0.4-3 mm larger than the outer diameter of the heating rod (40) so that the axial thickness of the heating channel (43) in the cross section is 0.2-1.5 mm;
an IGBT module (52) electrically connected with the electromagnetic coil (42) and a control circuit board (51) for outputting control signals to enable the IGBT module (52) to output corresponding driving frequencies are further arranged in the shell (1).
2. The electromagnetic induction heating water dispenser according to claim 1, wherein the housing (1) comprises a metal shell (11) and an insulating panel (12) positioned on the outer side surface of the metal shell (11), and the water outlet tap (15) is arranged by exposing the insulating panel (12).
3. The electromagnetic induction heating water dispenser according to claim 1, wherein a water shortage detection element is further arranged in the casing (1), and a controller for stopping the magnetic energy heating body (4) from heating by the IGBT module (52) when judging that water shortage occurs according to the detection result of the water shortage detection element is arranged on the control circuit board (51).
4. An electromagnetic induction heating drinking machine according to claim 3, characterized in that the water shortage detection element comprises a water level sensor (7) arranged in the water storage tank (2) for detecting the water level in the water storage tank (2), and the output end of the water level sensor (7) is electrically connected with the first data port of the controller.
5. An electromagnetic induction heating water dispenser according to claim 3, characterized in that the water shortage detection element comprises a flow sensor (8) arranged at the water outlet (22) of the water storage tank (2), the water supply pipe (62) or the cold water inlet (48) of the magnetic energy heating body (4), and the second data port of the flow sensor (8) is electrically connected.
6. An electromagnetic induction heated drinking machine according to claim 3, characterized in that the water shortage detection element comprises a temperature sensor (9) arranged between the second end of the heating channel (43) and the outlet tap (15), the output end of the temperature sensor (9) being electrically connected to the third data port of the controller.
7. The electromagnetic induction heating water dispenser according to claim 1, characterized in that a control box (3) is arranged below the water storage tank (2), a radiator (54) which is in contact with the IGBT module (52) is arranged in the control box (3), a water supply pipe (62) extends to the radiator (54) and is in contact with the radiator (54), a control circuit board (51) and the IGBT module (52) are both arranged in the control box (3), and the control circuit board (51) is located above the IGBT module (52).
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| CN201910320999.0A CN109965698B (en) | 2019-04-21 | 2019-04-21 | Electromagnetic induction heating water dispenser |
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| CN201910320999.0A CN109965698B (en) | 2019-04-21 | 2019-04-21 | Electromagnetic induction heating water dispenser |
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| CN112335724A (en) * | 2020-11-12 | 2021-02-09 | 青岛博瑞设备制造有限公司 | Freeze-drying and moisture regaining equipment |
| CN114376411B (en) * | 2022-02-15 | 2024-01-12 | 佛山市顺德区美的饮水机制造有限公司 | Control method and device for water treatment device, storage medium and water treatment device |
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