CN105326398A - Liquid heating apparatus - Google Patents

Abstract

A liquid heating apparatus has a first mode of operation in which a first volume of water can be heated and a second mode of operation in which a second, smaller volume of water can be heated and automatically dispensed. The first mode may be provided by a removable liquid heating vessel (40). The second mode may be provided by a second heating chamber (58) comprising a heater (76) arranged to heat liquid and dispense it through an outlet (45). The second heating chamber (58) is filled with water from the removable liquid heating vessel (40).

Description

Liquid heating apparatus

Technical field

The present invention relates to a kind of liquid heating apparatus, this liquid heating apparatus is for heating/boiling the liquid of such as water.

Background technology

In worldwide, almost all there is heating water to prepare the common requirements of beverage.Local at other of Britain and Europe, most of family generally have for by water boil to prepare the kettle of seasonable beverage.Local at other of larger place and the world, more commonly make water body continue in very long a period of time---may be a whole day---keep blanching or boiling, " as required " this beverage can be prepared, that is, need not wait for that water just can be prepared from room temperature heating.The example of this situation is traditional electric kettle or the so-called thermos bottle more common in Asia.

These two kinds of devices all have their shortcoming.With regard to kettle, even if use the very high kettle (specifications of three kilowatts) of power, from cold (that is, temperature when water flows out from tap) heated water the time spent for user and is also considered to be not convenient.If when estimating it is difficult to during kettle water-filling to institute's water requirement, and tend to boil than required more water (this certainly can increase boiled the spent time) thus, then especially like this.On the other hand, if continuing in very long a period of time, water to be remained on boiling or the state close to boiling, then will a large amount of energy be needed to offset inevitable heat loss.

Recently, the equipment commercialization solving this defect is attempted.These equipment allegedly can within the time in about a few second from cold water reservoir output cupful hot water.But these equipment are generally based on pipe stream heater (tubularflowheater), and applicant has realized that some significant drawback of this device.First, as typical pipe stream heater, the overheated heater caused in order to avoid the hot spot (hotspot) produced by steam air pocket (pocket) and/or the too high and danger that causes of the buildup of pressure of tube interior, must the water in pipe arrive boiling point before stop heating.Although another shortcoming is that the firing rate of heater is relatively very fast, the water of the primary quantity by heater not being heated to target temperature inevitably can be there is.This with prepare after a while, self still do not mix the mean temperature that can reduce water at the water of boiling point.The combination of these two factors mean the water that in fact provided by this equipment to during distribution also far below boiling point, thus make it be unsuitable for such as infusing tea, and because which limit its attraction to consumer.

Applicant recognizes further, and except one glass of hot water dispenser of the above-mentioned type, most of user still needs to have conventional kettle, for when needing relatively large or water that is that really boil.Which results in the problem taking kitchen space.

Summary of the invention

From first aspect, the invention provides the liquid heating apparatus with the first operator scheme and the second operator scheme, in the first mode of operation, the water of the first volume can be heated, in the second mode of operation, can heat and the water automatically distributing the second less volume.

According to the present invention, those skilled in the art it can be seen, individual equipment can be used to heat rapidly and distribute a small amount of water, or heat in more conventional mode or boil relatively large water.Its advantage had is to allow user to select suitable operator scheme according to the water yield needed for any special time, but without the need to spending the expense relevant with the independent utensil completing these tasks, or without the need to being multiple utensil searching space on kitchen countertop.Certainly, it should be understood that the relative water content that can heat under arbitrary patterns is determined by relative maximum volume; At least in a preferred embodiment, the first operator scheme can be used heat the enough a small amount of water originally alternatively heated in a second mode.The water yield that can heat in a second mode can be fixing or can be such as, variable by user.

Equipment can provide independent holder for two points of other operator schemes, but in a preferred embodiment, provides public holder.This can be set to according to using the first or second operator scheme that water (or another kind of liquid) is distributed to corresponding heater, but in a preferred embodiment, equipment is set to all water in heating reservoir in a first mode of operation, or heats the water of the less scheduled volume from holder in the second mode of operation.

Because holder can remove from the remainder of equipment and take such as tap water-filling to, therefore equipment preferably includes the removable holder being advantageously convenient to fill.In special embodiment easily, equipment is also provided so that the water heated in a first mode of operation manually can distribute from removable container.In the preferred case, removable container can be similar to ordinary canteen, therefore it will be recognized that in these embodiments, and equipment comprises the boiling kettle of standard necessarily, if but institute's water requirement is enough few, equipment is also configured to can " as required " heating and dispensing water.

Common heater may be used for heating water with the first or second operator scheme.Such as, holder can comprise the device therefrom separated by a small amount of water heated in the second mode of operation.In other embodiments, be respectively the first and second operator schemes and independently heater is provided.This can be optimized it in the special-purpose for each heater in there are some advantages, and make himself to cause such embodiment especially, in this embodiment, there is provided complete boiling kettle for the operation under first mode necessarily, but this boiling kettle allow the water in kettle to enter heater for the second operator scheme when it is placed on equipment.It is appreciated that in such embodiments, can operate kettle independent of the remainder of equipment, when needs the second operator scheme, only need kettle to be placed on the remainder of equipment.

This device itself is novel in favourable, therefore when on the other hand, the invention provides the equipment for heating liquid, this equipment comprises removable heating vessel, this heating vessel comprises the heater for heating liquid wherein, this equipment comprises the second heating clamber being set to heating liquid and being undertaken by outlet by liquid distributing further, and wherein said second heating clamber is filled with from the liquid in removable heating vessel.

Preferably, a heater or two heaters are all set to heat water to boiling.Compared with a first aspect of the present invention, removable heating vessel provides the first operator scheme, and the second heating clamber provides the second pattern.

According to aforesaid all embodiments, preferably, the heater of heating liquid in a first mode of operation, such as, the heater of the heating vessel of aspect of the present invention recited above, comprise the heater plates with stratie such as clad type element, this stratie is formed in or is mounted to the bottom surface of plate.Preferably, as known in kettle field, heater is set to the opening on closed (close) container base.

Be provided for the independently heater of the second operator scheme, such as, the heater of the second heating clamber of aspect of the present invention recited above, this can take arbitrarily form easily, such as, tube heater or some other forms of stream heaters, but the chamber then being carried out to preferred temperature by heating liquid distributing preferably is provided.

The automatic distribution of the second operator scheme can be realized by the device of any appropriate.Such as, pump or equipment can be adopted can be provided so that liquid heating by hydrostatic (lowerdown) dispense liquid downwards in parts at an upper portion thereof.But in a preferred embodiment, water is set to boil in the second mode of operation and distributes from equipment by means of the steam pressure produced in boiling part.

In some embodiments of the invention, provide public mechanism, no matter to operate with the first or second operator scheme, when liquid reaches predetermined temperature, stop heating liquid.This can take arbitrarily form easily, such as, and electronics, and the temperature that can be heated to according to liquid.With in the preferred embodiment of two kinds of operator scheme boil water, as known in the art, public device preferably includes vapor switch, such as, comprise the vapor switch of quick-action bimetallic actuator.

In a further embodiment, independently device is provided to heat with stopping under corresponding pattern.Such as, when providing removable heating vessel, conventional vapor switch can be provided.Such as, this allows this removable container and standard kettle close as far as possible, this for user's acceptance with can minimize that again to process be all useful.

Removable heating vessel preferably includes valving, and this valving enters the second heating clamber for optionally allowing liquid when container is arranged on utensil, and avoids when container removes leaking.Valving can be provided in container body, but preferably it is provided in the heater plates of the opening of closed container pedestal.This is of value to makes valve be positioned at container bottom, and means the heater plates can producing the standard comprising valve, therefore allows utensil producer to use the appliance body processed.

Although not necessarily, valving is preferably provided on the second heating clamber.This valving is preferably configured to cut out when there being the water of scheduled volume in the second heating clamber.This allows the second heating clamber to be automatically filled to required water level.It such as can comprise float valve.According to one group of embodiment, use the valve member of free floating, this component is than clack valve more reliable (robust).Advantageously, this valve member is contained in housing, housing allows liquid flow through but keep (retain) valve member, valve member has upper position (upperposition) and lower position (lowerposition), at upper position place, it is against living valve seat with valve-off, and in lower position, it remains in the lower member of housing.Valve member can take arbitrarily form easily.Such as, it can comprise ball (ball).As replacement, it can be pill shape, discus shape or short and thick cylindric.In preferred one group of embodiment, valve member is tapered downwards, such as truncated cone.Have been found that this can minimize the possibility that valve member in use blocks (sticking).

Preferably, the second heating clamber valving is configured to make the pressure increased in heating clamber to be tending towards increasing clossing pressure on the valve that produced by the buoyancy of valve member.Preferably, it comprises elastic collar (collar), and valve member is pressed against described elastic collar by the internal pressure in the second heating clamber.When being removed by removable container, this helps avoid water or vapour leakage.

As preferably, when providing independent heater for two points of other operator schemes, equipment preferably includes the switching device only allowing once to make one of described element be energized.This is favourable, because it allows each heater to be in high power, and the danger that electric network source will be made to be transshipped owing to making two element energisings simultaneously.In simple exemplary embodiment, switching device comprises the change-over switch of such as rocker switch.When providing such switching device, vapor switch preferably acts on aforesaid switchgear to cut off the arbitrary heater be energized.

Said apparatus itself is considered to novel in creative, therefore when on the other hand, the invention provides a kind of switching device for electric device, described switching device comprises switch, it can be the primary importance that the first circuit is powered that described switch has, the second place can powered for second circuit and the 3rd position do not powered for any described circuit, described device comprises thermal responsive actuators further, this thermal responsive actuators is set to when described actuator arrives predetermined temperature, act on described switch described switch any position from described first or the second place is moved to described 3rd position.

In a further embodiment, adopt electronics or electromechanical assembly avoid being energized simultaneously.Such as, in one group of embodiment, relay is used for power supply to connect with one of heater, and is provided so that its contact is opened when power supply supplies another heater.Certainly, those skilled in the art are it is easily understood that equivalent device can electronically reach same function.Preferably, described device makes when making the heater energising of the second heating clamber, the power supply of the heating vessel that sever supply is removable.Its usefulness is that it allows the electric installation in heating vessel to be complete standard.Such as, relay or other switching devices sever supply can be used for the power supply of this kind of wireless connector of P72 connector of the such as applicant powered to heating vessel simply.

Accompanying drawing explanation

Below, only by way of example the preferred embodiments of the present invention are described with reference to accompanying drawing, in the accompanying drawings:

Fig. 1 shows the schematic diagram of the critical piece implementing equipment of the present invention;

Fig. 2 shows the schematic circuit diagram of the electric switchgear for two heaters;

Fig. 3 a to 3d shows a series of schematic diagrames of the use of embodiments of the invention;

Fig. 4 is another schematic diagram of the second embodiment;

Fig. 5 is the stereogram of the third embodiment of the present invention;

Fig. 6 is the stereogram of another angle removed by water tank type kettle parts of the embodiment of Fig. 5;

Fig. 7 is the view removing enclosing cover being similar to Fig. 6;

Fig. 8 is the decomposed figure of the parts above heating clamber;

Fig. 9 is the cross section view of heating clamber;

Figure 10 is the different cross section of heating clamber;

Figure 11 is the amplification view of the valve between water tank type kettle and heating clamber;

Figure 12 is the stereogram of the lower member of distributor chamber;

Figure 13 is the sectional view of distributor chamber; And

Figure 14 is the schematic circuit diagram for utensil.

Detailed description of the invention

Fig. 1 shows the basic element of character implementing equipment of the present invention.In this embodiment, have the water tank type kettle 2 of fiducial mark standard, this kettle has handle 4 and topples over kettle mouth 6.This kettle is equipped with the heater of the opening be set on its pedestal closed, and comprises the clad type heating element heater being mounted to metallic plate bottom surface.Kettle 2 also comprises the standard U17 control unit of applicant, so as when due to connect dry combustion method or boil dryout and make heater produce overheated turn off heater.As known in the art, this control unit comprises the common unit of 360 degree of wireless electric connectors.The auxiliary assembly of connector 8 is visible on the base component 10 of equipment.

With the difference of ordinary canteen, kettle 2 is that it comprises self-closing valve (invisible) on its base, when being placed on pedestal 10 by kettle 2, described self-closing valve can be opened by the penetrating of pipe 12 of stretching out from pedestal 10.Are another valves arranged with the form of float valve 13 in the lower end of pipe 12, control water enters the heating clamber pedestal 10 from kettle 2.

The heating clamber of pedestal 10 inside of equipment has another heater 30 in its bottom surface, and described heater 30 is similar to the heater in kettle 2.The same with the entrance controlled by float valve 13 just described, pedestal heating clamber is connected to distributing nozzle 14, described distributing nozzle 14 stretches out from base component 10 and terminates with down-turned portion (loop), for the moisture of heating being joined cup 16 into being placed in below it or other containers.

Same to communicate with heating clamber and what rise from the pedestal 10 of equipment is vertical steam pipe 18, its upper end has narrow neck, and what exceed it is temperature-sensitive quick-action bimetallic actuator 20.Although the signal of Fig. 1 is not shown, bimetallic devices 20 is orientated as and is made when kettle 2 is positioned on base unit 10, and it is also positioned at the top of the kettle mouth 6 of kettle 2.

Fig. 2 shows the schematic circuit diagram of switching device.It should be noted, bimetallic devices 20 acts on conversion hysteria rocker switch 36.Rocker switch 36 has 3 positions.At left side and right positions place, its can be connected to electric network source (mainssupply) live wire (live) side public terminal 22 and be connected to the element 28 in kettle 2 and the element 30 in pedestal heating clamber respectively two other terminal 24,26 in form loop between any one.Any loop is not formed in the central position of switch 36.

This device allows to make any one energising in element 28 or 30, or makes both no powers, but does not physically allow to make two elements all be energized simultaneously.Therefore, each element can reach the maximum rated power that electric network source provides---and such as, be 3kW in Britain.When bimetallic actuator 20 reaches its operating temperature (such as after contacting with steam, 90 degrees Celsius) time, bimetallic actuator 20 act on switch 36 with make it turn back to make two all cold central authorities of element, the position (as shown in Figure 2) of opening.

What connect to kettle element 28 is corresponding live wire electrode and zero line (neutral) the pole set of switch contacts 32 of U17 control unit.What connect with pedestal heating clamber element 30 is simple bimetal thermostatic switch and thermal cut-off switch or two bimetal release (not shown).These corresponding further switches guarantee that element (such as, dryouies) power-off when overheated owing to connecting dry combustion method or boiling.

Now, additional reference Fig. 3 a to 3d is described the operation of equipment.Fig. 4 a shows kettle 2 and is placed on equipment base component 10 being placed on distributing nozzle (invisible) below with cup 16.In use, kettle 2 to remove and from tap by its water-filling (Fig. 4 b) from base unit 10 by user in a usual manner.Then, reapposed on base component 10, thus allow pipe 12 penetrate the bottom of (penetrate) kettle and therefore allow when float valve 13 is opened water to flow out (pedestal heating clamber is for empty if that is) from kettle.

User can boil relatively a large amount of water (such as, as many as two liters) in a first mode of operation.This is by selecting correct position to realize for rocker switch 36.This makes kettle element 28 be energized so that the whole contents (content) in kettle 2 boil by it.When water boil, the steam of generation makes bimetallic devices 20 operate scram position rocker switch 36 being back to central authorities, and this is by the dump of wireless connector 8, and therefore makes element 28 power-off in kettle.Certainly, replace this device, more conventional vapor switch device may be used for kettle 2 itself.The time of about 4 minutes can be spent to be boiled by two premium on currency by the heating element heater of 3kW.Once have turned off this element after water boil, just can mention kettle 2 and water be poured out (Fig. 3 c) in a usual manner.

If user changes into only need one glass of water boiled, so the second operator scheme can be used.This realizes by selecting another position (Fig. 3 d) of rocker switch 36, and therefore makes the heater 30 in pedestal room be energized.A small amount of water in heating clamber is heated to boiling by this pattern rapidly, and the steam therefore produced enters steam pipe 18, and activates bimetallic devices 20 and switch 36 is reset to middle position thus cut-off device.Pressure increase with the water boil in chamber forces water upwards to enter cup 16 by distributing nozzle 14.Cupful water can boil and distribute in about 30 seconds.

Fig. 4 schematically shows another embodiment.This have with its oneself element (not shown) removable kettle 2 ' and in order to heating rapidly and automatically predetermined a small amount of water is entered the similar device of water feed conduit 12 ' by the side direction that nozzle 14 ' is assigned to cup 16 for discharging water from kettle 2 '.But, in this embodiment, replacing the heater on the bottom surface of the pedestal heating clamber closed, there is fluid heater 30 ', for heating water in the second mode of operation.

Therefore, what those skilled in the art should understand that is, embodiment described above allows user quickly can boil cupful water or boils the flexibility of a full Hu Shui in a usual manner, and need not buy two independently utensil and for these two independently utensil find memory spaces.

The embodiment described is only to realize an example of the present invention.Many distortion and amendment can be made.Such as, single shared element can be provided, instead of for two of two operator schemes independently heating element heaters.

Fig. 5 shows the stereogram of another embodiment of the present invention.This comprises the removable heating vessel provided with the form of water tank type kettle 40 substantially, and it is positioned on bearing 42, and bearing 42 is also for supporting the hot water distributor chamber 44 with its distributing nozzle 45 by pillar 46.Kettle 40 is depicted as and removes pot lid and outside hand moulded parts.This exposes the standard vapor switch 48 of the R48 vapour control part of such as applicant, and it is for turning off kettle when water wherein seethes with excitement.

Fig. 6 shows the equipment removing kettle.This exposes 360 degree of wireless electric connectors 50 of the P72 connector of such as applicant, and it is positioned at the center in the region of the accommodation kettle of base 42.The side of wireless electric connector 50 is shells 52 of water valve, and its object will be described later.

Also be easier in the figure it is seen that the on/off switch 54 being arranged in hot water distributor chamber 44 top and the drain pan 56 be positioned at immediately below nozzle 45 (Fig. 6 is not shown).

Fig. 7 shows the view of the critical piece of the utensil removing enclosing cover.Like this, the heating clamber 58 that valve 52 and its are optionally communicated with can be seen now in the bottom of utensil.What extend from the side of heating clamber 58 is by two pipes 60,62 being connected internally to the inside of distributor chamber 44 of heating clamber 58.The object of these two pipes will be described later.

Fig. 8 shows the exploded partial view of the parts above heating clamber.It illustrates 360 degree of wireless connectors 50 to be contained in peculiar recessed 60 of the top surface of heating clamber 58.Passage 62 is provided as the electric wire held from connector 50.Connector 50 keeps putting in place by plate 64, and plate 64 is connected by screw, rivet or other modes are affixed to the top of heating clamber 58.Fixed head 64 also provides valve housing 52.Valve housing 52 is assemblied in and is positioned on the upstanding part-annular wall 66 at heating clamber top, and is inserted with novel resilient annular seal component 68 between which, and it will describe later in more detail.

Heating clamber 58 is formed by the upper member be clamped together by clamping ring 70,72 and lower member, and clamping ring 70,72 is linked together by a series of projection (boss) and screw device 74 screw.

Fig. 9 shows the vertical cross-section by heating clamber 58.As can be seen from this figure, clad type stratie 76 is bonded to aluminum diffuser plate 78, and aluminum diffuser plate 78 is bonded to the bottom surface of stainless steel heater plates 80, and aforementioned structure is similar to the structure be conventionally used in water boiling kettle provided.Heater plates 80 is affixed to the upper body of heating clamber 58 by peripheral channel 82, and described peripheral channel 82 is curling in the wall portion of the downward pendency of heating clamber according to the security seal system (SureSealsystem) of the applicant more specifically described in WO96/18331.

The cross section by one of pipe being connected to distributor chamber (not shown) 60 by heating clamber 58 is also as can be seen in this figure.This is the outlet for the water boiled to be transported to distributor chamber from heating clamber 58.It is evident that from figure, in chamber interior, outlet 60 extends with right angle, ends at the pipe portion 84 of pendency downwards, and the end in described pipe portion 84 to be positioned at above heater plates more than 80 millimeters.

Figure 10 also shows the vertical cross-section by heating clamber 58, but in this example, this cross section intercepts the plane from paralleling with the cross section of Fig. 9.This illustrates another pipe 62 heating clamber 58 being connected to distributor chamber, this pipe is breather pipe (venttube).The lower end of breather pipe 62 is assemblied on sleeve pipe (spigot) 86, and described sleeve pipe 86 leads to the hole of the inside top of heating clamber 58.

Figure 11 shows the vertical cross-section of the kettle 40 by being positioned at heating clamber 58 top.In the figure, view is amplified more clearly to show valving, and omits some parts to increase definition further.Kettle 40 has sidewall 88.The bottom surface of kettle is closed by circular stainless steel heating plate 90, the bottom surface of described heating plate 90 provides aluminum diffuser plate 92 and clad type stratie (invisible).

Edge towards heater plates 90 is formed porose, to hold the sleeve portion 94 vertically stretched out of the kettle parts of valve mechanism.This sleeve portion 94 is sealed against the hole lived in heater plates 90 by packing ring (grommet) 96.Below sleeve portion 94, kettle valve part comprises two concentric annular covers (shroud): inner cover 98 and outer cup 100.On the shell 52 that the diameter of outer cup 100 makes it be assemblied in heating clamber valve part and its edge (bevellededge) with inclination is with auxiliary positioning.

Sleeve pipe 94 and inner cover between 98 are the valvings propped up on spring, and it comprises the vertically moving valve member 102 that top has valve head 104, and this valve head 104 is biased to corresponding valve seat 106 by compression disc spring 108.This disc spring acts between the ring 110 at place bottom the bottom surface of valve seat 106 and valve member 102.In the structure shown in Figure 11, power is upwards applied to the bottom ring 110 of valve member, is therefore lifted off a seat by valve head 104 106 lift thus allow water to pass through valve.But, equally, it can be seen that, when removing this power, disc spring 108 is done in order to valve-off, therefore avoid water further by.

The parts being provided in the heating clamber side of valving comprise shell 52 (previous references Fig. 6,7 and 8 mentioned), opening that it has the center of the inside cover 98 for holding kettle valve housing, that cut sth. askew.Therefore, when two valve parts connect, this shell 52 passes through between the inside and outside cover 98,100 of upper member.The inside of shell 52 is annular seat component 68, and it provides the fluid-tight seal against the annular wall 66 firmly protruded upward, and annular wall 66 is the integrated component at the top of heating clamber 58.Containment member 68 has the center annular extension of the circular passage that formation is upwards opened, and this circular passage is for holding the lower edge of the inside cover 98 of kettle valve part and sealing against living this lower edge.

Is angled annular flange flange 112 on the lower surface of containment member 66, and it extends radially outwardly so that it has flexibility to a certain degree in the axial direction.The below of containment member 66 is generally Frusto-conical float valve member 114, and it can vertically move but its downward movement limits by bonnet retainer component 116.When float valve member 114 be arranged in top or in movement time, its top surface is pressed against angled annular flange flange 112.

Figure 12 shows the stereogram seen from above of the distributor chamber 44 removing upper cap.Figure 13 shows the vertical cross-section of the parts of upper cap chamber in place.The master unit 44a of distributor chamber is roughly bowl-type, and distributing nozzle 45 is being arranged in recessed (distinctrecess) 44c of uniqueness at center.The extension central portion of trailing edge is the terrace part 44b of rising, general horizontal, and outlet 60 and breather pipe 62 are exposed to this terrace part 44b from heating clamber.It should be noted, these two pipes 60,62 vertically extend a segment distance and enter distributor chamber.

What be arranged on distributor chamber outside (but with reference to shown in Figure 12) is R48 vapor switch 188, and on/off rocker switch 54 is affixed to this vapor switch 188.Vertical pipe (chimney) 120 extend through distributor chamber 44 but isolate with distributor chamber and immediately below the bimetallic actuator (Figure 12 and 13 can not clearly find out) of vapor switch 118 opening.This allows to make cold air by bimetallic actuator to allow it to reset relatively quickly after bimetallic actuator operation.

Can more clearly find out from Figure 13, the pipe forming outlet nozzle 45 is having slightly large diameter vertically extending a segment distance enter distributor chamber 44 in the pipe 122 of under shed with one heart, and this pipe 122 under shed is mounted to the upper cap of distributor chamber.The annular groove 44c at the center of the critical piece 44a being positioned at distributor chamber is not just reached to the pipe 122 of under shed to downward-extension.

Figure 14 shows the schematic circuit diagram of the main electrical connection between each parts of utensil.As can be seen from the left side of circuit diagram, be connected with ground wire from the electrical network lead-in wire live wire of (not shown), zero line (neutral).The switch contact of the vapor switch 118 provided in distributor chamber is electrically connected in series between live wire electrode (linepole) and the coil 124 of relay and (although this signal is not shown, can also provides the rectification of some forms).The contact 126 of relay is conversion hysteria, and its common 126a is connected to live wire electrode.The relay contact 126b often opened is connected to the heating element heater 76 on the pedestal being provided in heating clamber 58.Although not shown; but formed by the U Series Controller improved with the electrical connection of this element 76; described U Series Controller has its a pair distinctive overtemperature protection bimetallic actuator, and this acts on the hot side of element and corresponding normally-closed contact 128a, 128b of neutral side respectively to overtemperature protection bimetallic actuator.Neon indicator 130 and suitable resistor 132 are connected in series in element 76 two ends, to indicate when this element is energized.

Normally closed relay contact 126c is connected to the fire line terminal of the central authorities of wireless electric connector 50.Zero terminal and ground wire terminal are connected directly to corresponding input from electrical network lead-in wire.

The right side of the circuit diagram of Figure 14 shows the electricity configuration of the routine in kettle.Like this, heating element heater 134 is connected in series with the normally opened contact of vapor switch 48, and also and by normally-closed contact 136a, 136b of the overheated bimetallic devices effect of U17 controller is connected in series.Equally, neon indicator 138 and corresponding resistor 140 are connected to element 134 two ends, to indicate when this element is energized.

Now, the operation of the embodiment described above-mentioned reference diagram 5 to 14 is described.

The same as in the previous embodiment, can with two kinds independently the utensil of pattern to this embodiment operate.In the flrst mode, kettle 40 can remove, then water-filling put back on pedestal.In order to start to boil, press turn on-switch (not shown) with the contact of closed vapor switch 48.Under the normal condition shown in Figure 14, can power element 134 is energized by wireless connector 50.Except non-user is cut off the electricity supply again, otherwise heating can last till the water boil in kettle, and this makes vapor switch 48 operate and disconnect power elements.Then, kettle 40 can be mentioned again, and the water boiled can be poured out from its Hu Zui in a usual manner.

But if user wishes to boil and distributes only cupful water, he or she can operate utensil with the second following operator scheme.

When first time using appliance, or when otherwise making heating clamber 58 become sky, must to its water-filling.This realizes by being kettle 40 water-filling and being put back on bearing 42.This allows the water in kettle 40 to enter heating clamber by the valving shown in Figure 11.More particularly, when bearing put back to by kettle 40, the lower loop 110 of the valve member 102 in kettle valve part is contacted with the inner annular projection of containment member 68 by it and the power of resisting disc spring 108 is forced to rising.This allows water from the inside of kettle 40, by valve sleeve part 94, flow through valve member 102, and is flow through the edge of float valve member 114 by the center of containment member 68 and entered heating clamber 58.Even after the lower member 86 of outlet is capped, breather pipe 62 also allows air to discharge from chamber.

Along with in heating clamber 58 water level rise, float valve member 114 also along with water rises gradually until it is sealed against the annular flange flange 112 on the lower surface of containment member 68 by enough power, enter heating clamber 58 to avoid more water.If again mention kettle 40 now, disc spring 108 cuts out making valve head 104 against the valve seat 106 of living kettle valve housing inside, thus avoids the water in kettle to leak.Similarly, float valve member 114 can avoid water to spray from the lower member of valving against the buoyancy of compliance (compliant) annular flange flange 112 of the bottom of containment member 68.When kettle 40 is put back to original position, although the kettle side 104,106 of valve can be opened again, because float valve member 114 keeps being pressed against in annular flange flange 112, therefore do not have more water flow.

In order to operate this utensil in a second mode, user must open the switch 54 being provided in distributor chamber top.Consider that the circuit diagram of Figure 14 will appreciate that, it makes relay coil 124 be energized to disconnect relay contact 126a and 126c and connecting terminal 126a and 126b.This has two kinds of results.First result is owing to no longer powering to wireless connector 50, thus can not operate kettle 40, thus guarantee to make two elements 76,134 be energized, for normal domestic use electricity network outlet, make two element energisings consume overcurrent simultaneously. simultaneouslyAnother result is to make the element 76 on the bottom surface of heating clamber 58 be energized and start the water in heating chamber.

In the starting stage of heating, the restriction gathered by the breather pipe 62 being connected to the distributor chamber 44 being substantially in atmospheric pressure of heating clamber 58 internal pressure.Which avoid the water be not sufficiently heated to be flowed out by outlet 60 prematurely.Which also reduces any trend of float valve member 114 against containment member 68 " rocking ".This helps avoid more cold water and enter heating clamber in heating process together with compliance annular flange flange 122.

Along with the water temperature in heating clamber 58 is close to boiling, buildup of pressure also starts upwards pressed along outlet 60 by water and therefore enter distributor chamber 44.Along with this action proceeds, the water of all boilings almost in heating clamber 58 all forces and rises to fill distributor chamber 44 along outlet 60.Water is continued to force to rise until the water level decreasing in chamber 58 is below the lower end of the downward extension portion of outlet 88 along outlet.

Turn to Figure 12 and 13, it can be seen that originally the water of boiling enter side room 44b, after this enter the master unit 44a of chamber towards the annular recesses 44c at center, and therefore start filled chamber master unit 44a.Along with water continues to enter distributor chamber 44, rise until water begins to flow through the top of outlet 45 and therefore passes downwardly through the cup that Hu Zui enters user to the water level between the pipe 122 and the outlet nozzle 45 upwards extended of under shed.Which establishes siphon (siphon), it makes all water in fact distributor chamber 44 be distributed by kettle mouth 45.

Once force all water from heating clamber 58 by outlet 60 upwards, the steam from heating clamber 58 will escape and enter distributor chamber 44 from the top of outlet 60 (and from breather pipe 62).This makes vapor switch 118 cut off, and therefore interrupts powering to relay coil 124 and therefore making heating clamber element 76 disconnect.

When pressure drop in heating clamber, float valve member 114 reduces against its retainer 16 downwards, and this automatically gives heating clamber 58 water-filling from kettle 40 again, supposes that kettle 40 there and wherein have the water of q.s.If kettle 40 is not there, so heating clamber 58 can when next kettle 40 is put back to water-filling again.Therefore, kettle 40 serves as the holder removable easily for heating clamber.This allows user's whole day repeatedly to prepare several glasss of boiling water, and kettle need not be refilled at every turn, without the need to repeatedly again boiling same water (this is considered to make its taste deterioration owing to eliminating the oxygen of dissolving usually), and importantly, without the need to wasting energy owing to boiling the water more than required water.

If wherein without any operating heating clamber 58 when water; such as; if there is no water in kettle 40 to refill chamber after using last time; so, one or the other of bimetallic devices in the U Series Controller of the improvement of element 76 is protected can to operate to open corresponding contact 128a, 128b.

Like this, can find out, the invention provides very general utensil, it both can be used as ordinary canteen with the relatively a large amount of water of heating, or if only need the water of cupful, it also can in the second mode of operation very fast and effectively heat and distribute.So kettle 40, in this mode of operation as removable holder, because it allows to be easy to refill, therefore itself is easily.Relay is provided to avoid electricity overload to carry out switching between the two elements.

Claims (18)

1. for the liquid heating apparatus of heating water under two kinds of operator schemes, this equipment comprises removable heating vessel and independent heating clamber, first operator scheme comprises the water heated by primary heater in described removable heating vessel, described removable heating vessel is arranged to describedly can be distributed from described removable heating vessel subsequently by the water heated, second operator scheme comprises and in described heating clamber, heats water to boiling by the secondary heater independent of described primary heater, it is characterized in that described room has volume little compared with described removable heating vessel and comprises outlet, described room sprays via described outlet under being arranged to the steam pressure effect in the chamber of the water that seethes with excitement in use, steam pressure produces the water from described boiling, the discharge pipe that the part that described room comprises the described steam for being generated by the water by described boiling at atmosheric pressure is further discharged, described liquid heating apparatus comprises steam cock further, this steam cock is arranged to cut off described secondary heater when the water of the boiling in described room distributes.

2. equipment according to claim 1, it comprises the public holder for two operator schemes.

3. equipment according to claim 2, it is set to all water heated with described first operator scheme in described holder, or with the water of described second operator scheme heating from the less scheduled volume of described holder.

4. the equipment according to any one claim aforementioned, it comprises removable holder.

5. equipment according to claim 4, it is provided so that manually to distribute from described removable holder with the water of described first operator scheme heating.

6. the equipment according to claim 1,2 or 3, wherein, one or two heater is set to water to be heated to boiling.

7. the equipment according to claim 1,2 or 3, wherein, the described heater for described first operator scheme comprises the heater plates with stratie, and described stratie is formed in or is mounted to the bottom surface of described plate.

8. the equipment according to claim 1,2 or 3, it comprises the independently heater being respectively used to described first operator scheme and described second operator scheme.

9. the equipment according to claim 1,2 or 3, it comprises switching device, and described switching device only allows once to make one of described heater be energized.

10. equipment according to claim 9, it comprises the relay of power sources in series to one of described heater, and described relay is provided so that when opening to its contact during another heating installation power supply.

11. equipment according to claim 9, wherein, described device makes, when making the heater energising of described second heating clamber, to cut off to the power supply of described removable heating vessel.

12. equipment according to claim 1, wherein, the described primary heater of described removable heating vessel is set to the opening on this container base closed.

13. equipment according to claim 1,2 or 3, wherein, described removable heating vessel comprises valving, and this valving is used for optionally allowing liquid to enter described heating clamber when this removable container does not remove and avoids when container removes leaking.

14. according to the equipment according to claim 13 being subordinated to claim 12, and wherein, described valving is provided in the described heater of the opening of the described pedestal of closed described container.

15. equipment according to claim 1,2,3 or 12, it comprises the valving be positioned on described second heating clamber.

16. equipment according to claim 15, wherein, described valving is configured to cut out when having the water of scheduled volume in described second heating clamber.

17. equipment according to claim 15, it comprises float valve member.

18. equipment according to claim 17, wherein, described second heating clamber valving comprises elastic collar, and described valve member is pressed against described elastic collar by the internal pressure in described second heating clamber.