CN209326083U - A kind of electromagnetic heater and a kind of instant heating type electromagnet water heater - Google Patents

Abstract

The utility model relates to continuous flow heater technical fields, disclose a kind of electromagnetic heater and a kind of instant heating type electromagnet water heater, wherein electromagnetic heater includes metal shell, electromagnetic coil, form the shell of accommodating chamber, metal shell is at least partially arranged in the accommodating chamber of shell, part of the metal shell in accommodating chamber is surrounded by separation sleeve, electromagnetic coil is arranged in accommodating chamber outside separation sleeve, space in accommodating chamber outside separation sleeve is packaged with insulating heat-conductive liquid, metal shell is equipped with inlet and outlet, the inlet and outlet of metal shell seal be connected to outside shell respectively.The utility model is heated using electromagnetic coil, and most of electronic component is immersed in insulating heat-conductive liquid, heat conduction is carried out using insulating heat-conductive liquid, to realize that water power is isolated, the purpose of insulating radiation avoids electronic component short circuit or crosses cause thermal damage, it is ensured that heating device operates normally, safety coefficient is high, long service life.

Description

A kind of electromagnetic heater and a kind of instant heating type electromagnet water heater

Technical field

The utility model relates to continuous flow heater technical field, more particularly to a kind of electromagnetic heater and A kind of instant heating type electromagnet water heater.

Background technique

There are many small kitchen treasured products, such as instant electric tap, small-sized instant electric water heater etc. currently on the market. These small kitchen treasured products are quickly to heat the water flowed through in pipeline, the temperature for making water temperature rise rapidly to that user is allowed to be comfortable on Degree.In cold winter, these small kitchen treasured products bring many conveniences to user, can use comfortable warm water or heat at any time Washing hand washes the dishes, wash vegetables etc..But existing most of small kitchen treasured products are all that heat-generating pipe or heating film are immersed in water In heated, after a period of use, heat-generating pipe perhaps heat film surface be easy to generate scale cause heat-generating pipe or The heat of heating film is difficult to transmit water supply, on the one hand reduces heating efficiency, slows down heating speed, on the other hand be easy to cause fever Pipe or heating film overheat, generate booster phenomenon, cause electric leakage safety accident.There are heat-generating pipe or heating film to be easy to be corroded again Damage is easy to generate leaky in this way, and there are security risks.

Some designers develop electromagnet water heater, such as a kind of entitled instant heating type electromagnet water heater, application number thus A kind of electromagnet water heater scheme is disclosed for 201510863465.4 Chinese invention patent, the program is added using electromagnetic induction Pyrogen reason, realizes the purpose of electricity separation.But electromagnetic coil has larger current when being powered on and passes through, meeting in this way Electromagnetic coil itself is set to generate certain heat, the electromagnetic coil in the program is arranged in water heater liner, is difficult in this way It is preferably radiated to electromagnetic coil, after long-time use, electromagnetic coil is easily damaged.In addition, the small kitchen of the similar program The control circuit board of precious product is generally all mounted in common shell, although some products are using air-cooled form to control electricity Road plate is cooled down, but such small kitchen treasured product is typically mounted in toilet or near the tap in kitchen, these ground Square environment is moister, it is easy to cause other electric elements in control circuit board and its electric elements or shell above Short circuit phenomenon occurs, to influence the normal use of product, and there are some potential safety problemss.

Utility model content

The utility model is to overcome the deficiencies in the prior art described above, and provides a kind of electromagnetic heater and a kind of i.e. heat Formula electromagnet water heater.

The utility model is achieved through the following technical solutions above-mentioned purpose.

A kind of electromagnetic heater, including that can be generated heat by electromagnetic induction for water storage or the metal-back flowed through that supplies water The electromagnetic coil that body, electromagnetic induction metal shell generate heat, further includes the shell to form closed accommodating chamber, metal shell above-mentioned At least electromagnetic induction heating part be arranged in the accommodating chamber of shell, metal shell in the accommodating chamber of shell part sealing Formula is surrounded by separation sleeve, and electromagnetic coil above-mentioned is arranged in the accommodating chamber of shell outside separation sleeve, isolation in the accommodating chamber of shell Space outside set is packaged with insulating heat-conductive liquid, and metal shell is equipped with inlet and outlet, the water inlet of metal shell and water outlet Sealing is connected to outside shell mouth respectively.

The water inlet of metal shell in this programme is used to be connected to water source, such as is connected to tap water pipe line.Metal-back The water outlet of body is used to be connected to user with water terminal, such as is connected to tap, shower etc..Metal shell in this programme Inner cavity formed for water storage or the water cavity that flows through of supplying water, heat dissipation cavity is formed between separation sleeve and shell, heat dissipation cavity is provided with Insulating heat-conductive liquid.Water cavity and heat dissipation cavity are mutually indepedent, are not connected to mutually, realize electricity separation, can reduce or even avoid metal-back Heat conduction between body and water and insulating heat-conductive liquid by heating.Electromagnetic coil in this programme is to be immersed in insulating heat-conductive In liquid, the heat that itself is generated when electromagnetic coil is powered on can rapidly be conducted to insulating heat-conductive liquid, under normal conditions Partial heat itself can be absorbed in insulating heat-conductive liquid, but also heat can be conducted to shell, and shell is radiating heat into In ambient enviroment, to realize the purpose to radiate to electromagnetic coil, electromagnetic coil is avoided to be easily damaged.

The lead of electromagnetic coil in this programme can be using the sealing elements hermetically passing shells such as rubber sleeve, silica gel sheath, benefit It come hermetically passing lead is technological means common in the art with these sealing elements.It can make the electromagnetism in this programme in this way Coil is connected with external control circuit, thus using the work of external control circuit control electromagnetic coil, and outside control is electric Road is arranged in the place of relatively dry, avoids external control circuit that short circuit phenomenon occurs, improves the stability and safety of product. The electromagnetic heater of this programme can be used in immediately heating water heater, can also be used in storage-type electric water heater, heating power It can be rationally designed according to form of water heater etc..Such as the metal shell in this programme can be using the metal flowed through that only supplies water Pipe, is heated using electromagnetic coil to flowing water, and the water heating for flowing through metal tube quickly, can be used directly, be suitable for Immediately heating water heater.No doubt, it is connected to water tank or water storage cylinder in the water outlet of metal tube, has also may be constructed a kind of storage-type heat Hydrophone.Metal shell in this programme can also utilize electromagnetic coil using the water tank or water storage cylinder that can store more water It is heated to the water of storage, user reuses the hot water of storage, also may be constructed a kind of storage-type electric water heater in this way.Certainly, The electromagnetic heater of this programme is not limited to be used in immediately heating water heater or storage-type electric water heater.

As improved structure type, there are insulation voids between above-mentioned metal shell and separation sleeve, metal shell Water inlet is located in the accommodating chamber of above-mentioned shell, is equipped with the heat carrier with cavity in the accommodating chamber of shell, metal shell into The mouth of a river is connected to the exit seal of the cavity of heat carrier, and the import sealing of the cavity of heat carrier is connected to outside shell, heat carrier leaching Enter in the insulating heat-conductive liquid in the accommodating chamber of shell.The insulation voids shape between metal shell and separation sleeve in the structure type At heat-insulation chamber, water cavity, heat-insulation chamber and heat dissipation cavity are mutually indepedent, are not connected to mutually, electricity separation are better achieved, and can be greatly Reduce the heat conduction even avoided between metal shell and water and insulating heat-conductive liquid by heating.Leading in the structure type The import of the cavity of hot body with external water source for being connected to, and the water into the cavity of heat carrier is generally cold water, and heat carrier soaks Bubble is in insulating heat-conductive liquid, to conduct heat between cold water and insulating heat-conductive liquid using heat carrier.Generally, insulation is led The temperature of hydrothermal solution is higher than the temperature of cold water, especially in cold winter, can both cool down to insulating heat-conductive liquid in this way, reinforce To the heat dissipation effect of electromagnetic coil, and temperature of cold water rises can be given, play the role of preheating cold water.Heat carrier in the structure type It is preferred that being made of the good metal material of heating conduction, such as copper alloy or aluminium alloy.

As improved structure type, above-mentioned heat carrier has heat transmission fin.Heat transmission fin can be arranged in heat carrier Cavity in, the lateral surface of heat carrier can also be arranged in, can also in the cavity of heat carrier and the lateral surface of heat carrier all It arranges heat transmission fin, to reinforce heat-conducting effect, improves heat-transfer rate.

The utility model also describes a kind of instant heating type electromagnet water heater including above-mentioned electromagnetic heater Control circuit board and Hall water flow sensing unit, above-mentioned metal shell are metal tube, and two ports of metal tube are respectively above-mentioned Metal shell inlet and outlet, the import of the cavity of above-mentioned heat carrier and the water outlet of Hall water flow sensing unit are close Connection, Hall water flow sensing unit and above-mentioned electromagnetic coil all circuit connections are sealed to control circuit board.

The above-mentioned electromagnetic heater that this programme is constituted using the metal tube flowed through that only supplies water, and combine control circuit board Instant heating type electromagnet water heater is constituted with Hall water flow sensing unit etc..Hall water flow sensing unit is for detecting in water route whether have water flow Pass through.When there is water flow to pass through, the transmission of Hall water flow sensing unit has water signal to control circuit board, and control circuit board controls electromagnetism Coil working.When not having water flow to pass through, Hall water flow sensing unit sends no water signal to control circuit board, control circuit board control Electromagnetic coil processed stops working.To realize the automatic heating of intelligence, greatly it is convenient for the user to use.

As improved structure type, above-mentioned control circuit board and Hall water flow sensing unit are all disposed within above-mentioned shell Accommodating chamber in and all immerse in above-mentioned insulating heat-conductive liquid, the inlet seal of Hall water flow sensing unit is connected to shell Outside.Currently, for can generally arrange more electronic component, example in the control circuit board of the electromagnetic coil of electromagnetic induction fever Such as IGBT, rectifier bridge, power tube, high-voltage capacitance, conventional capacitive, resistance, choke coil, the fever of some of them electronic component Also larger.Control circuit board and Hall water flow sensing unit are also immersed in insulating heat-conductive liquid by the structure type, can be saved in this way Lead, and the lead between control circuit board, Hall water flow sensing unit and electromagnetic coil can hide the accommodating chamber for being contained in shell It is interior, in order to avoid there is excessive lead exposed, keep electromagnet water heater more integrated, convenient for assembling and installation.And it can use absolutely Cooling electronic component of the edge conductive fluid to control circuit board and its above.In addition, using insulating heat-conductive liquid by control circuit board And its thoroughly isolation such as electronic component above and water, vapour, it avoids that short circuit phenomenon occurs, eliminates safe hidden trouble, it is ensured that electromagnetism Water heater operates normally.

As improved structure type, above-mentioned Hall water flow sensing unit includes the cavity of straight-tube shape, Hall water flow sensing The inlet and outlet of device are located at both ends of cavity and coaxially arranged, and inner impeller, inner impeller are rotatably connected in cavity Center of rotation and Hall water flow sensing unit water inlet and water outlet it is coaxial, in inner impeller deviate center of rotation location arrangements There is magnet, the Hall sensor for detecting magnet is disposed on the outside of cavity, hall sensor circuit is connected to the control Circuit board.When having water flowing in the cavity of Hall water flow sensing unit, water flow just will drive inner impeller and rotate, and inner impeller The water inlet and water outlet of center of rotation and Hall water flow sensing unit are coaxial, it can be ensured that inner impeller reaction is sensitiveer.Internal lobe Magnet on wheel can be one, be also possible to multiple, it is preferable that deviate the location arrangements of center of rotation in inner impeller Multiple magnet, and these magnet are evenly arranged around the center of rotation of inner impeller.More preferred scheme is around inner impeller Center of rotation is arranged symmetrically two or four magnet, will not both increase when inner impeller starts turning because magnet is excessive in this way Inertia force, and inner impeller can be made to obtain better dynamic balancing, keep inner impeller rotation more steady, to reduce the mill of inner impeller Damage, prolongs the service life.

As improved structure type, it is rotatably connected to out rotor on the outside of the cavity of above-mentioned Hall water flow sensing unit, The center of rotation of out rotor and the center of rotation of the inner impeller are coaxial, and magnet, the magnetic on out rotor are disposed on out rotor Magnet on iron and inner impeller apart from it is nearest when be that homopolarity is opposite or heteropolar opposite, by between magnet when inner impeller rotates Interaction drives out rotor rotation, and Hall sensor is used to detect the magnet on the magnet or out rotor in inner impeller.It should Hall water flow sensing unit in structure type is immersed in insulating heat-conductive liquid, and out rotor is also immersed in insulating heat-conductive liquid.Internal lobe Out rotor rotation is driven by the magnet principle that identical charges repel each other or there is a natural attraction between the sexes when wheel rotation, out rotor rotation can stir insulation Conductive fluid flows insulating heat-conductive liquid in accommodating chamber, thus make insulating heat-conductive liquid conduction heat speed faster, can be more preferable Ground passes through the effectively heat dissipation such as heat carrier, shell.

As improved structure type, above-mentioned separation sleeve is isolating cylinder, the sealed set of isolating cylinder in the outside of metal tube, One end of isolating cylinder and above-mentioned shell are tightly connected, and the other end of isolating cylinder and above-mentioned heat carrier are tightly connected, above-mentioned The water outlet end of metal tube exposes to shell.Isolating cylinder in the structure type can be integrated sealing with shell and connect, It can be tightly connected by way of being threadedly engaged and compressing sealing ring.Metal tube need to be only inserted into isolating cylinder by the structure type In, and the water inlet of metal tube is connected to the exit seal of the cavity of heat carrier, isolating cylinder and heat carrier are tightly connected, and The water outlet end of metal tube is set to expose to shell, it is mutually indepedent thus to may be implemented water cavity, heat-insulation chamber and heat dissipation cavity, further Simplify structure, convenient for assembling.Furthermore, it is possible to which the water outlet of metal tube is facilitated to connect with exterior line, metal tube can also be avoided Water outlet end and insulating heat-conductive liquid contact, in order to avoid by heating water conduct heat in insulating heat-conductive liquid.

As improved structure type, the water outlet end of above-mentioned metal tube is equipped with for detecting water flow temperature in metal tube Temperature sensor, temperature sensor circuit is connected to control circuit board.Utilize the water outlet of temperature sensor detection metal tube The leaving water temperature of the water temperature at place, detection is more accurate.And the online value that leaving water temperature can be set in control circuit board, when When the leaving water temperature of detection is higher than online value, electromagnetic coil is controlled by control circuit board and is stopped working, security protection is played Effect.

As improved structure type, above-mentioned outer side of shell is connected with cap, is formed between shell and cap and accommodates pair Chamber, the water outlet end and temperature sensor of above-mentioned metal tube are secondary intracavitary positioned at accommodating, and the water outlet of metal tube is connected to cap The lead in outside, lead, control circuit board and external power supply connection between temperature sensor and control circuit board passes through Silica gel sheath hermetically passing shell, and the position that lead passes through is accommodating in the corresponding region of secondary chamber.The structure type utilizes cap The water outlet end of metal tube, temperature sensor, some leads, silica gel sheath and lead are surrounded across position with shell, it can To play the role of protection, unexpected touch is avoided to damage.And it is relatively isolated temperature sensor and external environment, it avoids It is a greater impact, the temperature value that temperature sensor detects is more accurate.

The utility model mainly had the following beneficial effects: heated using electromagnetic coil compared with prior art, and Most of electronic component is immersed in insulating heat-conductive liquid, heat conduction is carried out using insulating heat-conductive liquid, to realize water power Isolation, the purpose of insulating radiation avoid electronic component short circuit or cross cause thermal damage, it is ensured that heating device operates normally, and safety is Number is high, long service life.

Detailed description of the invention

Fig. 1 is the schematic diagram of the section structure of the utility model embodiment one.

Fig. 2 is the partial enlarged view in Fig. 1 at K.

Fig. 3 is the schematic perspective view of the heat carrier in the utility model embodiment one.

Fig. 4 is the schematic diagram of the section structure of the utility model embodiment two.

Fig. 5 is the schematic diagram of the section structure of the Hall water flow sensing unit in the utility model embodiment two.

Fig. 6 is the dimensional decomposition structure diagram of the Hall water flow sensing unit in the utility model embodiment two.

Fig. 7 is the dimensional decomposition structure diagram of the utility model embodiment two.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.Attached drawing only for illustration, should not be understood as Limitation to this patent.

For the more succinct the present embodiment that illustrates, certain in attached drawing or explanation well known to a person skilled in the art but with this The incoherent components of the main contents of utility model can be omitted.It in addition is certain components meetings in attached drawing convenient for stating There is omission, zoom in or out, but does not represent the size or entire infrastructure of actual product.

Embodiment one:

As shown in Figure 1, a kind of electromagnetic heater, the lower end of tubular upper casing 11, capping upper casing 11 including lower end opening Open bottom cover 12 can be generated heat and the supply water metal tube 21 flowed through, coil block 22, leading with straight-through chamber by electromagnetic induction Hot body 23.

For metal tube 21 in the present embodiment using the stainless steel tube of straight-tube shape, the both ends of metal tube 21 are respectively equipped with outer spiral shell Tooth.Two ports of the lumen of metal tube 21 are respectively inlet and outlet.Heat carrier 23 in the present embodiment is using thermally conductive Metal material of good performance is made, such as aluminium alloy.

The lower end that bottom cover 12 covers upper casing 11 is open, and the progress of the first sealing ring 14 is accompanied between bottom cover 12 and upper casing 11 Sealing, upper casing 11 and bottom cover 12 surround an accommodating chamber.The upper end top plate inner face of upper casing 11 extends isolating cylinder 13 straight down, The upper port of the open at both ends of isolating cylinder 13, isolating cylinder 13 is located at the upper end top plate of upper casing 11, the lower port position of isolating cylinder 13 In in accommodating chamber.The upper port of isolating cylinder 13 and the upper end top plate of upper casing 11 are integral type sealed connection.

Coil block 22 includes the coil plate rail 221 with helix groove of tubular and the wire casing for being coiled in coil plate rail 221 Interior electromagnetic coil 222.22 sets of the coil block outsides in isolating cylinder 13, metal tube 21 are inserted into the barrel chamber of isolating cylinder 13, gold The middle section part for belonging to pipe 21 can be generated heat by 222 electromagnetic induction of electromagnetic coil.Between metal tube 21 and isolating cylinder 13 there are every Hot gap.

The inlet end of metal tube 21 passes through the lower port of isolating cylinder 13 and is located in accommodating chamber.The straight-through chamber of heat carrier 23 Two-port be respectively inlet and outlet, the inlet and outlet of heat carrier 23 is respectively equipped with internal screw thread, the water inlet of metal tube 21 The internal screw thread of the outlet of the external screw teeth and heat carrier 23 at end is threadedly engaged, and the inlet end of metal tube 21 and heat carrier 23 go out Mouth end accompanies the second sealing ring 31 and is sealed, and is connected to the lumen of metal tube 21 with the sealing of the straight-through chamber of heat carrier 23.It is thermally conductive The import of body 23 is connected with the first reduction nipple 24, the external screw teeth of the bigger diameter end of the first reduction nipple 24 and heat carrier 23 The internal screw thread of import is threadedly coupled, and is accompanied third sealing ring 32 between the first reduction nipple 24 and heat carrier 23 and is sealed, Make straight-through chamber and the sealing connection of the first reduction nipple 24 of heat carrier 23.The miner diameter end of first reduction nipple 24 passes through bottom cover 12, the 4th sealing ring 33 accompanied between the step surface and bottom cover 12 of the first reduction nipple 24, the first reduction nipple 24 The part that miner diameter end exposes to bottom cover 12 is equipped with external screw teeth and is locked with the first nut 25, and tightening the first nut 25 can clamp 4th sealing ring 33 is to make the miner diameter end hermetically passing bottom cover 12 of the first reduction nipple 24.First reduction nipple 24 it is small Diameter end exposes to the part of the first nut 25 for connecting external water source pipeline, such as municipal tap water pipeline.

The water outlet end of metal tube 21 passes through the upper port of isolating cylinder 13, and exposes to outside the upper end top plate of upper casing 11. The part that the external screw teeth of the water outlet end of metal tube 21 exposes to the upper end top plate of upper casing 11 is locked with the second nut 26, the second spiral shell Mother 26 is against outside the upper end top plate of upper casing 11.The 5th sealing ring 34 is accompanied between the lower port and heat carrier 23 of isolating cylinder 13, Locking the second nut 26 can drive heat carrier 23 to clamp the 5th sealing ring 34 by metal tube 21, to make 13 He of isolating cylinder Heat carrier 23 is tightly connected, and is equivalent to the sealed part for surrounding metal tube 21 and being located in accommodating chamber of isolating cylinder 13.Metal tube The part that 21 water outlet end exposes to the second nut 26 is connected with the second reduction nipple 27, the water outlet end of metal tube 21 The internal screw thread of the bigger diameter end of external screw teeth and the second reduction nipple 27 is threadedly coupled, the water outlet end of metal tube 21 and the second variable diameter The 6th sealing ring 35 is accompanied between pipe fitting 27 to be sealed, and connects the lumen of metal tube 21 and the sealing of the second reduction nipple 27 It is logical.The miner diameter end of second reduction nipple 27 is used to connect the use water terminal of user, such as tap.

In the accommodating chamber that upper casing 11 and bottom cover 12 surround, and isolating cylinder 13, heat carrier 23 and the first reduction nipple 24 Outer space is the space of closing and sealing, insulating heat-conductive liquid is filled in this space, electromagnetic coil 222 and heat carrier 23 all soak Bubble is in insulating heat-conductive liquid.The insulating heat-conductive liquid of the present embodiment is oily using the good insulating heat-conductive of heating conduction, such as commonly Transformer oil.

The upper end top plate integral molding of the upper casing 11 of the present embodiment goes out cavity 111, and interference fit has silica gel in cavity 111 15 are covered, there is the pressing plate 16 of capping cavity 111 on the upper end top plate of upper casing 11 using screw locking, the lead of electromagnetic coil 222 is worn Cavity 111, silica gel sheath 15 and pressing plate 16 are crossed, pressing plate 16 squeezes silica gel sheath 15, silica gel sheath when being connected to the upper end top plate of upper casing 11 15 squeeze the lead of cavity 111 inner face and electromagnetic coil 222 again, so that the lead-in wire sealing of electromagnetic coil 222 is made to pass through upper casing 11, Electromagnetic coil 222 to be connected with external control circuit.

The operation logic of the electromagnetic heater of the present embodiment is: cold water is flowed into from the first reduction nipple 24, by leading The straight-through chamber of hot body 23 enters the lumen of metal tube 21, is then flowed out by the second reduction nipple 27.Make electromagnetism when cold water flows through Coil 222 is powered on, and heat is conducted to cold water after being generated heat by electromagnetic induction by metal tube 21, in this way from the second reduction nipple The water of 27 outflows just becomes warm water or hot water.

As depicted in figs. 1 and 2, the water cavity 100 that the segment dislocation water supply of the metal tube 21 in the present embodiment is flowed through, metal tube Insulation voids between 21 and isolating cylinder 13 form heat-insulation chamber 200, isolating cylinder 13, heat carrier 23,24 and of the first reduction nipple Heat dissipation cavity 300 is formed between upper casing 11 and bottom cover 12, fills insulating heat-conductive liquid in heat dissipation cavity 300.Water cavity 100,200 and of heat-insulation chamber Heat dissipation cavity 300 is mutually independent, is not connected to mutually, realizes electricity separation.Metal tube 21 and insulating heat-conductive liquid in the present embodiment do not have There is direct contact, can greatly reduce or even avoid the heat between metal tube 21 and water and insulating heat-conductive liquid by heating Conduction.

Electromagnetic coil 222 in the present embodiment is immersed in insulating heat-conductive liquid, when electromagnetic coil 222 is powered on itself The heat of generation can rapidly be conducted to insulating heat-conductive liquid, and part heat can be absorbed in insulating heat-conductive liquid itself under normal conditions Amount, but also heat can be conducted to upper casing 11 and bottom cover 12, upper casing 11 and bottom cover 12 radiate heat into ambient enviroment again In, to realize the purpose to radiate to electromagnetic coil 222, electromagnetic coil 222 is avoided to be easily damaged.

In addition, the water into the straight-through chamber of heat carrier 23 is generally cold water, and heat carrier 23 is immersed in insulating heat-conductive liquid, To conduct heat between cold water and insulating heat-conductive liquid using heat carrier 23.Generally, the temperature of insulating heat-conductive liquid wants high It in the temperature of cold water, especially in cold winter, both can preferably cool down to insulating heat-conductive liquid in this way, reinforce electromagnetic coil 222 heat dissipation effect, and temperature of cold water rises can be given, play the role of preheating cold water.

As shown in figure 3, improving heat-transfer rate, the present embodiment is in heat carrier 23 to reinforce the heat-conducting effect of heat carrier 23 Lateral surface be evenly arranged multiple heat transmission fins 231.

The present embodiment can be used in immediately heating water heater, can also be used in storage-type electric water heater, heating power can be with Form according to water heater etc. rationally designs.Such as the present embodiment be used in immediately heating water heater in when, flow through the water of metal tube 21 It is rapidly heated, can directly use.For another example when the present embodiment is used in storage-type electric water heater, connect at the second reduction nipple 27 Logical water tank or water storage cylinder.Certainly, the electromagnetic heater of the present embodiment is not limited to be used in immediately heating water heater or storage In ability of swimming water heater.

It is either used in which kind of water heater, or is used in other electrical equipments, may be by external control circuit Control the work of electromagnetic coil 222, and external control circuit can be arranged in the place of relatively dry, avoid external control electricity Short circuit phenomenon occurs for road, improves the stability and safety of product.

Embodiment two:

As shown in figs. 4 and 7, the present embodiment introduce a kind of electromagnetic heater using embodiment one constitute it is instant heating type The first reduction nipple 24 in embodiment one is substituted for Hall water flow sensing unit 41 first by electromagnet water heater.The present embodiment It further include control circuit board 28.The control circuit board 28 and Hall water flow sensing unit 41 of the present embodiment are all immersed in heat dissipation cavity 300 In interior insulating heat-conductive liquid.

Inventor refer to Hall water flow sensing unit in the prior art, and according to its function in the present embodiment need into Simplified and Curve guide impeller is gone.As shown in Figure 5 and Figure 6, the Hall water flow sensing unit 41 in the present embodiment includes 411 He of upper half shell Lower half shell 412, upper half shell 411 and lower half shell 412 pass through the chamber for being threadedly engaged and fastening and surrounding a straight-tube shape, upper half shell 411 The 7th sealing ring 413 is accompanied between lower half shell 412, is tightly connected upper half shell 411 and lower half shell 412.Upper half shell 411 is equipped with The circular ring shape water outlet end of evagination, lower half shell 412 are equipped with the circular ring shape inlet end of evagination, the water outlet of Hall water flow sensing unit 41 Mouthful end and inlet end are located at the upper and lower side of chamber and coaxially arranged.The water outlet end of Hall water flow sensing unit 41 and water inlet Mouth end is respectively equipped with external screw teeth.The internal screw thread of the import of the external screw teeth and heat carrier 23 of the water outlet end of Hall water flow sensing unit 41 It is threadedly coupled, third sealing ring 32 is clamped between the water outlet end of Hall water flow sensing unit 41 and heat carrier 23, makes thermally conductive The straight-through chamber of body 23 is connected to the cavity seal of Hall water flow sensing unit 41.The inlet end of Hall water flow sensing unit 41 passes through bottom Lid 12, the 4th sealing ring 33 are sandwiched between the step surface and bottom cover 12 of the lower half shell 412 of Hall water flow sensing unit 41, the first spiral shell The inlet end of mother 25 and Hall water flow sensing unit 41 exposes to the external screw teeth of 12 part of bottom cover and is threadedly engaged and locks, and tightens the One nut 25 can clamp the 4th sealing ring 33, to make the inlet end hermetically passing bottom cover 12 of Hall water flow sensing unit 41. The inlet end of Hall water flow sensing unit 41 exposes to the part of the first nut 25 for connecting external water source pipeline, such as municipal administration Tap water pipe line.

Inner impeller 414, the center of rotation and Hall of inner impeller 414 are rotatably connected in the chamber of Hall water flow sensing unit 41 The inlet end and water outlet end of water flow sensing unit 41 are coaxial, and there are two the location arrangements that center of rotation is deviateed in inner impeller 414 Magnet 415, two magnet 415 in inner impeller 414 are arranged symmetrically around the center of rotation of inner impeller 414 and close to inner impellers 414 outer edge.The outside rotation of the upper half shell 411 of Hall water flow sensing unit 41 is socketed with out rotor 416, out rotor 416 Center of rotation and the center of rotation of inner impeller 414 are coaxial.Arrangement is there are two magnet 415 on out rotor 416, on out rotor 416 Two magnet 415 are arranged symmetrically around the center of rotation of out rotor 416 and close to the inward flanges of out rotor 416.On out rotor 416 Two magnet 415 and two magnet 415 in inner impeller 414 apart from it is nearest when be that homopolarity is opposite, when inner impeller 414 rotates Out rotor 416 is pushed to rotate by the interaction between magnet 415.It is fixed on the outside of the lower half shell 412 of Hall water flow sensing unit 41 Connection one for detecting the Hall sensor 417 of the magnet 415 on out rotor 416.

Again as shown in figs. 4 and 7, the present embodiment is tightly connected one for examining on the side wall of the second reduction nipple 27 The NTC formula temperature sensor 29 of coolant-temperature gage is measured, the second reduction nipple is protruded into the sound end sealing of NTC formula temperature sensor 29 In 27.The outer upper side of the upper end top plate of upper casing 11 is connected with cap 17, in this way between the upper end top plate of upper casing 11 and cap 17 The secondary chamber 400 of a receiving is formed, the water outlet end of metal tube 21, a part of the second reduction nipple 27 and NTC formula temperature pass Sensor 29, which is all hidden, to be contained in the secondary chamber 400 of receiving.It is corresponding that the cavity 111 of the upper end top plate of upper casing 11 also is located at the secondary chamber 400 of receiving In region, i.e., cavity 111, silica gel sheath 15 and pressing plate 16 are all covered in by cap 17.The miner diameter end of second reduction nipple 27 is worn Cap 17 is crossed in order to connect the use water terminal of user, such as tap.

Hall sensor 417, electromagnetic coil 222 and all circuit connections of NTC formula temperature sensor 29 are to control circuit board 28. Lead, electromagnetic coil 222 between Hall sensor 417 and control circuit board 28 and the lead between control circuit board 28 all may be used To be arranged in heat dissipation cavity 300, do not have to across upper casing 11 and bottom cover 12.NTC formula temperature sensor 29 and control circuit board 28 it Between lead pass through upper casing 11 upper end top plate cavity 111, silica gel sheath 15 and pressing plate 16, i.e., the lead-in wire sealing pass through upper casing 11.Similarly, control circuit board 28 for electrical lead also from hermetically passing upper casing 11 from cavity 111, be then then passed through cap 17 with For connecting external power supply.

When having water flowing in the chamber of the Hall water flow sensing unit 41 in the present embodiment, water flow just will drive inner impeller 414 Rotation, the center of rotation of inner impeller 414 and the inlet end and water outlet end of Hall water flow sensing unit 41 are coaxial, it can be ensured that interior Impeller 414 is quick on the draw.It is arranged symmetrically two magnet 415 in inner impeller 414, both will not increase inner impeller because magnet is excessive Inertia force when starting turning, and inner impeller can be made to obtain better dynamic balancing, keep inner impeller rotation more steady, to drop The abrasion of low inner impeller, prolongs the service life.

The present embodiment one electromagnetic heater and control circuit board 28 and Hall water flow sensing unit 41 etc. in conjunction with the embodiments Constitute instant heating type electromagnet water heater.Whether Hall water flow sensing unit 41 has water flow to pass through for detecting in water route.When there is water flow logical Out-of-date, the transmission of Hall sensor 417 has water signal to control circuit board 28, and control circuit board 28 controls electromagnetic coil 222 and works. When not having water flow to pass through, Hall sensor 417 sends no water signal to control circuit board 28, and control circuit board 28 controls electromagnetism Coil 222 stops working.And the Hall water flow sensing unit 41 in the present embodiment can also detect the size of water flow in water route, water Stream is bigger, and inner impeller 414 rotates faster, and the frequency that Hall sensor 417 sends signal is higher, in this way can be in control circuit The heating power for automatically adjusting electromagnetic coil 222 according to the height of signal frequency is set in plate 28, is added to realize that intelligence is automatic Heat is greatly convenient for the user to use.

The present embodiment also utilizes NTC formula temperature sensor 29 to detect leaving water temperature, in this way can be in control circuit board 28 The online value for setting leaving water temperature controls electromagnetic wire by control circuit board 28 when the leaving water temperature of detection is higher than online value Circle 222 stops working, and plays the role of security protection.

Currently, more electronic component can generally be arranged by being used to control in the control circuit board of electromagnetic coil, such as IGBT, rectifier bridge, power tube, high-voltage capacitance, conventional capacitive, resistance, choke coil etc., the fever of some of them electronic component It is larger.Control circuit board 28 and Hall water flow sensing unit 41 are all immersed in insulating heat-conductive liquid by the present embodiment, can be saved in this way Lead is saved, and the lead between control circuit board 28, Hall sensor 417 and electromagnetic coil 222 can be hidden and be contained in heat dissipation cavity In 300, in order to avoid there is excessive lead exposed, keep instant heating type electromagnet water heater more integrated, convenient for assembling and installation.And it can With the cooling electronic component using insulating heat-conductive liquid to control circuit board 28 and its above.In addition, will using insulating heat-conductive liquid The thoroughly isolation such as control circuit board 28 and its electronic component above and water, vapour, avoids that short circuit phenomenon occurs, it is hidden to eliminate safety Suffer from, it is ensured that electromagnet water heater operates normally.

In addition, the out rotor 416 in the present embodiment is also immersed in insulating heat-conductive liquid.Inner impeller 414 passes through magnetic when rotating The iron principle that identical charges repel each other pushes out rotor 416 to rotate, and the rotation of out rotor 416 can stir insulating heat-conductive liquid, makes insulating heat-conductive Liquid flows in heat dissipation cavity 300, thus make insulating heat-conductive liquid conduction heat speed faster, can better by heat carrier, Shell etc. effectively radiates to electromagnetic coil 222, control circuit board 28 and its electronic component above etc..Inner impeller 414 Rotate faster, out rotor 416 just rotates faster, and stronger to the agitation of insulating heat-conductive liquid, heat dissipation effect is better, certain Play the role of automatically adjusting heat dissipation effect in degree.

In addition, the present embodiment utilizes cap 17 and upper casing 11 by the water outlet end of metal tube 21, the second reduction nipple 27 A part, NTC formula temperature sensor 29, some leads, silica gel sheath 15 and lead risen in the encirclements such as position that pass through of upper casing 11 Come, protection can be played the role of, avoids unexpected touch from damaging, and make NTC formula temperature sensor 29 and external environment It is relatively isolated, avoids being a greater impact, the temperature value that NTC formula temperature sensor 29 detects is more accurate.

The above is only two specific embodiments of the utility model, but the design concept of the utility model is not limited to This, it is all that the insubstantial modifications made to the utility model are conceived using the utility model, each fall within the protection of the utility model Within the scope of.

Claims (10)

1. a kind of electromagnetic heater, including that can be generated heat by electromagnetic induction for water storage or the metal-back flowed through that supplies water The electromagnetic coil that body, electromagnetic induction metal shell generate heat, which is characterized in that further include the shell to form closed accommodating chamber, institute At least electromagnetic induction heating part for the metal shell stated is arranged in the accommodating chamber of shell, accommodating chamber of the metal shell in shell Interior part is sealed to be surrounded by separation sleeve, and the electromagnetic coil is arranged in the accommodating chamber of shell outside separation sleeve, shell Space in accommodating chamber outside separation sleeve is packaged with insulating heat-conductive liquid, and metal shell is equipped with inlet and outlet, metal shell Inlet and outlet seal be connected to outside shell respectively.

2. electromagnetic heater according to claim 1, which is characterized in that stayed between the metal shell and separation sleeve There are insulation voids, the water inlet of metal shell is located in the accommodating chamber of the shell, and band cavity is equipped in the accommodating chamber of shell Heat carrier, the exit seal of the cavity of the water inlet and heat carrier of metal shell is connected to, the import sealing of the cavity of heat carrier It is connected to outside shell, heat carrier immerses in the insulating heat-conductive liquid in the accommodating chamber of shell.

3. electromagnetic heater according to claim 2, which is characterized in that the heat carrier has heat transmission fin.

4. a kind of instant heating type electromagnet water heater, which is characterized in that including electromagnetic heater as claimed in claim 2, further include Control circuit board and Hall water flow sensing unit, the metal shell are metal tube, and two ports of metal tube are respectively described Metal shell inlet and outlet, the import of the cavity of the heat carrier and the water outlet of Hall water flow sensing unit are close Connection, Hall water flow sensing unit and the electromagnetic coil all circuit connections are sealed to control circuit board.

5. instant heating type electromagnet water heater according to claim 4, which is characterized in that the control circuit board and Hall water Flow sensor is all disposed in the accommodating chamber of the shell and all immerses in the insulating heat-conductive liquid, Hall water flow sensing The inlet seal of device is connected to outside shell.

6. instant heating type electromagnet water heater according to claim 5, which is characterized in that the Hall water flow sensing unit includes The cavity of straight-tube shape, the inlet and outlet of Hall water flow sensing unit are located at the both ends of cavity and coaxially arranged, cavity It is inside rotatably connected to inner impeller, the center of rotation of inner impeller and the water inlet and water outlet of Hall water flow sensing unit are coaxial, internal lobe The location arrangements for deviateing center of rotation on wheel have magnet, and the Hall sensor for detecting magnet, Hall are disposed on the outside of cavity Sensor circuit is connected to the control circuit board.

7. instant heating type electromagnet water heater according to claim 6, which is characterized in that the chamber of the Hall water flow sensing unit It is rotatably connected to out rotor on the outside of body, the center of rotation of the center of rotation of out rotor and the inner impeller is coaxial, out rotor On be disposed with magnet, the magnet on magnet and inner impeller on out rotor apart from it is nearest when be that homopolarity is opposite or heteropolar phase It is right, out rotor rotation is driven by the interaction between magnet when inner impeller rotates, Hall sensor is for detecting inner impeller Magnet or out rotor on magnet.

8. instant heating type electromagnet water heater according to claim 5, which is characterized in that the separation sleeve is isolating cylinder, every From the sealed set of cylinder in the outside of metal tube, one end of isolating cylinder and the shell are tightly connected, the other end of isolating cylinder and The heat carrier is tightly connected, and the water outlet end of the metal tube exposes to shell.

9. instant heating type electromagnet water heater according to claim 8, which is characterized in that the water outlet end of the metal tube is set There is the temperature sensor for detecting water flow temperature in metal tube, temperature sensor circuit is connected to control circuit board.

10. instant heating type electromagnet water heater according to claim 9, which is characterized in that the outer side of shell is connected with shell Lid forms between shell and cap and accommodates secondary chamber, and the water outlet end and temperature sensor of the metal tube, which are located at, accommodates secondary chamber Interior, the water outlet of metal tube is connected on the outside of cap, the lead, control circuit board between temperature sensor and control circuit board with The lead of external power supply connection passes through silica gel sheath hermetically passing shell, and the position that lead passes through is corresponding in the secondary chamber of receiving In region.