CN109222636B - Liquid heater - Google Patents

Abstract

The invention relates to a liquid heater, which comprises a kettle body assembly, wherein the kettle body assembly comprises an inner container, a handle arranged on the side part of the inner container, a temperature controller arranged between the inner container and a bottom cover, and a steam channel communicated with a steam port of the inner container and a steam switch on the temperature controller, the steam switch comprises a first steam switch and a second steam switch, the deformation temperatures of the first steam switch and the second steam switch are different, the steam channel comprises a first steam channel used in a first working state and a second steam channel used in a second working state, the liquid heater also comprises a change-over switch, the change-over switch is used for controlling the connection state of the inner container and the steam switch, and the change-over switch at least comprises a first connection state and a second connection state; in a first connection state, the inner container is communicated with the first steam switch through the first steam channel; and in a second connection state, the inner container is communicated with the second steam switch through the second steam channel.

Description

Liquid heater

Technical Field

The invention relates to a household appliance, in particular to a liquid heater.

Background

With the improvement of living standard of people, heating containers such as electric kettles and the like are widely applied to the life of people. However, the existing mechanical electric kettle has single function, can be tripped off only under one condition, and the electronic electric kettle has high cost and can not meet the consumption level of the existing public.

For example, since the city water in China generally uses chlorine as a disinfectant, the residual chlorine in the tap water is dissolved in the water. Because chlorine is harmful to human bodies, liquid heaters such as electric kettles and the like can have a chlorine removal function in order to avoid the human bodies from taking in the chlorine. Specifically, the electric kettle generally adopts an electronic dechlorination mode, that is, a temperature sensor is used for detecting whether water in the electric kettle is boiled or not, and after the water is boiled, a control circuit is used for delaying to output a disconnection signal to a power supply so as to carry out delayed heating, so that chlorine dissolved in the water is removed in a boiling state. However, the control circuit of the electric kettle is used for outputting the disconnection signal to the power supply in a delayed manner, a complex logic control circuit needs to be designed, and the cost is high. Or, set for the preset timing cycle of mechanical timer through controlling starting drive to set up the dechlorination time, however, the operation is complicated, is unfavorable for promoting consumer's use experience. Moreover, water purifiers are widely used in daily life, and therefore, a quick heating function without chlorine removal is also needed.

Disclosure of Invention

Based on the situation, the invention provides the liquid heater which is more stable in structure and more convenient and safer to use.

A liquid heater comprises a kettle body assembly, wherein the kettle body assembly comprises an inner container, a handle arranged on the side part of the inner container, a temperature controller arranged between the inner container and a bottom cover, and a steam channel communicated with a steam port of the inner container and a steam switch on the temperature controller, the steam switch comprises a first steam switch and a second steam switch, the deformation temperatures of the first steam switch and the second steam switch are different, the steam channel comprises a first steam channel used in a first working state and a second steam channel used in a second working state, the liquid heater also comprises a change-over switch, the change-over switch is used for controlling the connection state of the inner container and the steam switch, and the change-over switch at least comprises a first connection state and a second connection state; in a first connection state, the inner container is communicated with the first steam switch through the first steam channel; and in a second connection state, the inner container is communicated with the second steam switch through the second steam channel.

Further, the first steam channel is a first steam pipe, the second steam channel is a second steam pipe, the first steam pipe is communicated with the first steam switch, the second steam pipe is communicated with the second steam switch, and the change-over switch is used for opening and closing air inlets of the first steam pipe and the second steam pipe.

Further, the first steam passage comprises a first steam pipe and a third steam pipe, the second steam passage comprises a second steam pipe and a third steam pipe, whether the first steam pipe, the second steam pipe and the third steam pipe are conducted or not is controlled through a selector switch, the first steam pipe is communicated with the first steam switch, and the second steam pipe is communicated with the second steam switch.

Further, a flow path length of steam within the first steam channel is less than a flow path length within the second steam channel;

alternatively, the cross-section of the first steam channel is larger than the cross-section of the second steam channel.

Furthermore, the temperature controller also comprises a steam box arranged on the outer side of the steam switch, and the steam box is respectively matched with the first steam switch, the second steam switch and the bottom cover to form two steam cavities.

Furthermore, the steam box comprises two air inlet ends and two air outlet ends, the two air outlet ends respectively correspond to the steam cavity, and the air outlets of the first steam channel and the second steam channel are respectively connected with the two air inlet ends.

Furthermore, the steam box comprises an air inlet end and two air outlet ends, the two air outlet ends respectively correspond to the steam cavity, and the switch is arranged on the steam box and located between the two air outlet ends.

Furthermore, the liquid heater also comprises a power switch matched with the steam switch, and the power switch extends out of the outer side of the kettle body assembly from the gap between the first steam pipe and the second steam pipe.

Further, the liquid heater also comprises a power switch matched with the steam switch, the power switch comprises a switch bracket, and the lower part of the third steam pipe is positioned between two connecting arms of the switch bracket.

Furthermore, a partition plate is arranged between the first steam switch and the second steam switch, the inner wall of the bottom cover extends upwards to form the partition plate, and the partition plate is abutted against the lower surface of the temperature controller support;

or, the liquid heater also comprises a power switch matched with the steam switch, and the power switch comprises a first power switch matched with the first steam switch and a second power switch matched with the second steam switch.

The invention has the beneficial effects that: adopt above-mentioned technical scheme, under the function of difference, lead steam to first steam switch or second steam switch respectively by first steam passageway and second steam passageway, the deformation temperature difference that directly sets up first steam switch and second steam switch can realize different operating condition, simple structure need not electron component, and the cost is lower, and liquid heater also can satisfy different demands simultaneously, and not only needs such as single dechlorination or normal heating.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the following drawings without creative efforts.

Fig. 1 is a schematic structural view of a liquid heater in embodiment 1.

Fig. 2 is a schematic structural view of a steam passage in embodiment 1.

Fig. 3 is a schematic view of a steam box.

Fig. 4 is a schematic structural diagram of a thermostat.

Fig. 5 is a schematic structural view of a liquid heater according to embodiment 2.

Fig. 6 is a schematic structural view of a steam passage in embodiment 2.

Fig. 7 is a schematic structural view of another liquid heater according to embodiment 2.

Fig. 8 is a schematic structural view of another steam passage in embodiment 2.

Fig. 9 is a schematic view of another steam box.

Fig. 10 is a schematic view of a structure of a thermostat cooperating with a steam box.

Fig. 11 is a schematic structural view of a switch engaged with a steam box.

Fig. 12 is a schematic structural diagram of a switch.

Fig. 13 is a schematic structural diagram of another switch.

Fig. 14 is a schematic view of another liquid heater configuration.

Fig. 15 is a schematic structural diagram of another switch.

Fig. 16 is a schematic structural view of a switch engaged with a handle.

Fig. 17 is a schematic view of another structure of the switch engaged with the handle.

Reference numbers of the drawings: 1-a pot body; 11-an inner container; 111-steam port; 12-a housing; 2-bottom cover; 3-a handle; 31-a handle seat; 32-a handle; 33-a first vapor chamber; 34-a second vapor chamber; 4-temperature controller; 41-a first vapor sheet; 42-a second vapor sheet; 51-a first steam tube; 52-a second steam tube; 53-third steam pipe; 7-a power switch; 71-switch key; 72-a switch bracket; 6-a change-over switch; 61-an operating member; 621-positioning ribs; 622-gear wheel; 611-an operating part; 612-a barrier; 613-bending part; 614-avoidance hole; 615-a vent hole; 65-a return spring; 63-a stop; 64-a sliding hole; 6121-buttonhole; 6111-fastener; 8-a steam box; 81-an air inlet end; 82-air outlet end.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to cut off the power supply timely after the heating of the liquid heater such as an electric heating kettle, a steam switch is usually included, and the steam switch is connected with a heating device on the inner container 11. When the liquid in the electric kettle is boiled, a large amount of steam is generated, and the steam switch is automatically disconnected after contacting the steam, so that the power supply of the heating device is cut off to stop heating the heating container. Specifically, the steam switch generally includes a switch connecting rod and a steam sheet, for example, the first steam switch includes a first steam sheet 41, the second steam switch includes a second steam sheet 42, steam generated by boiling liquid in the heating container is led to the steam sheet, and when the steam contacted by the steam sheet reaches a certain limit value, the steam sheet controls the switch connecting rod to move, so as to disconnect the power supply of the electric kettle. In addition, the inner container 11 can be formed into the kettle 1 alone, the inner container 11 can be matched with the shell 12 to form the kettle 1, and the kettle 1 can be a vacuum kettle 1. The kettle body component can comprise a kettle body, a bottom cover, a handle, a temperature controller and the like.

Example 1:

as shown in fig. 1, a liquid heater comprises a kettle body 1 assembly, wherein the kettle body 1 assembly comprises an inner container 11, a handle 3 arranged at the side of the inner container 11, a temperature controller 4 arranged between the inner container 11 and a bottom cover 2, and a steam channel communicated with a steam port 111 of the inner container 11 and a steam switch on the temperature controller 4, in order to realize the selective switching of the dechlorination water boiling function and the normal water boiling function, the steam switch comprises a first steam switch and a second steam switch, the steam channel comprises a first steam channel for a first working state and a second steam channel for a second working state, and further comprises a change-over switch 6, the change-over switch 6 is used for controlling the connection state of the inner container 11 and the steam switch, and the change-over switch 6 at least comprises a first connection state and a second connection state; in a first connection state, the inner container 11 is communicated with a first steam switch through a first steam channel; in the second connection state, the inner container 11 is communicated with the second steam switch through the second steam channel.

In the embodiment of the technical scheme of the invention, the first working state and the second working state can be freely combined and selected, for example, the first working state can be a normal water boiling function, and the second working state can be a chlorine removal function; or the first working state can be a milk warming function, and the second working state is a disinfection function, namely when the articles in the inner container 11 need to be disinfected, the liquid heater can work at high temperature for a long time to disinfect in the second working state; alternatively, the first operating state may be a water boiling function for the plain zone, the first operating state may be a water boiling function … … for the plateau zone, and so on.

In the following embodiments, the first operating state is a normal water boiling function, and the second operating state is a chlorine removal water boiling function, for example, the present invention provides a structure of a switch 6 for switching a steam channel. The structure of the present embodiment is described in detail below with reference to the accompanying drawings:

in other words, the chlorine-removing water boiling function and the normal water boiling function are respectively realized through the selection of the change-over switch 6, and a user can select the chlorine-removing water boiling function or the normal water boiling function according to the actually used water quality when using the liquid heater; in addition, compared with the prior art, the technical scheme adopts two relatively independent steam switches: the first steam switch and the second steam switch respectively realize the chlorine-removing water boiling function and the normal water boiling function, do not interfere with each other, fully achieve respective purposes and have more reliable effects. In conclusion, adopt above-mentioned technical scheme, under the function of difference, lead steam to first steam switch or second steam switch respectively by first steam passageway and second steam passageway, simple structure need not the electron component, and the cost is lower, and dechlorination is effectual, and liquid heater also can satisfy different demands simultaneously, and not only single dechlorination or normal heating demand.

In addition, the deformation temperatures of the first steam switch and the second steam switch are different:

for example, the deformation temperature of the second steam switch is higher than the deformation temperature of the first steam switch. The working states of two different functions can be realized through different tripping temperatures of the steam sheet, the structure is simple, and the cost is low.

Further, the first steam channel is a first steam pipe 51, the second steam channel is a second steam pipe 52, the first steam pipe 51 is communicated with the first steam switch, the second steam pipe 52 is communicated with the second steam switch, and the change-over switch 6 is used for opening and closing air inlets of the first steam pipe 51 and the second steam pipe 52. When the switch 6 opens the air inlet of the second steam pipe 52 and closes the air inlet of the first steam pipe 51, namely the switch 6 is in the second connection state, the inner container 11 is communicated with the second steam switch, and the functions of chlorine removal and water boiling are realized; on the contrary, when the switch 6 opens the inlet of the first steam pipe 51 and closes the inlet of the second steam pipe 52, that is, the switch 6 is in the first connection state, the inner container 11 is communicated with the first steam switch, and the normal water boiling function is realized. By providing two independent steam pipes as described above, the reliability is improved, and the switching between the first connection state and the second connection state can be achieved by closing one of the air inlets of the first steam pipe 51 and the second steam pipe 52 by the selector switch 6.

It is also possible at this time without consideration of the factors of the first steam pipe 51 and the second steam pipe 52, and it is simple to provide two identical steam pipes, which communicate with the first steam switch and the second steam switch, respectively. Preferably, the first steam switch has a deformation temperature of 60-85 degrees celsius (65 degrees celsius for example) and the second steam switch has a deformation temperature of 65-87 degrees celsius (75 degrees celsius for example).

Of course, in order to reduce the requirement on the steam switch, the first steam channel and the second steam channel may be set to be different, or in order to achieve better effect, the length of the flow path of the steam in the first steam channel is smaller than that in the second steam channel, that is, the second steam channel prolongs the time of the steam reaching the second steam sheet, and further prolongs the heating time, so as to achieve the chlorine removal effect or other effects.

The following methods can be adopted to extend the length of the steam flow path in the steam channel:

the first, as shown in fig. 2, is achieved by extending the length of the steam pipe, such as:

for example, the handle 3 includes a handle seat 3131 and a handle 32, the first steam pipe 51 is longitudinally disposed between the handle seat 3131 and the inner container 11, the second steam pipe 52 is disposed in the handle 32, in order to facilitate the arrangement of the switch 6 and achieve better use effect, the switch 6 is disposed on the handle 3, and the switch 6 is used to control the on/off of the steam ports 111 and the first steam pipe 51 and the second steam pipe 52. The second steam pipe 52 is arranged in the handle 3, so that the installation problem of the second steam pipe 52 is solved by utilizing the existing structure, and simultaneously, the length of the steam pipe is naturally prolonged relative to the first steam pipe 51, so that the time for the steam to reach the second steam switch through the second steam pipe 52 is prolonged, the heating time is further prolonged, and the chlorine removal effect is achieved; meanwhile, the first steam is still arranged between the handle 3 and the inner container 11, the installation structure does not need to be changed, and the structure is simple. Of course, the first steam pipe 51 and the second steam pipe 52 may be disposed between the handle 3 and the inner container 11, when the liquid heater further includes the outer casing 12, the outer casing 12 and the handle 3 are cooperatively disposed around the inner container 11, and the outer casing 12 may also serve to shield the steam pipe.

Secondly, through set up the water conservancy diversion muscle in the steam pipe, be equipped with the water conservancy diversion muscle in the steam pipe of at least one in first steam pipe 51 and the second steam pipe 52, two liang of crisscross settings of water conservancy diversion muscle in the steam pipe, the water conservancy diversion muscle forms the clearance with the inner wall of steam pipe, the clearance is the water conservancy diversion passageway. Such as:

in order to achieve the chlorine removal effect, the second steam pipe 52 is internally provided with flow guide ribs relative to the first steam pipe 51, the flow guide ribs are arranged in the second steam pipe 52 in a pairwise staggered manner, gaps are formed between the flow guide ribs and the inner wall of the second steam pipe 52, the gaps are flow guide channels, steam flows in the flow guide channels, the length of each flow guide channel is greater than the vertical length of the corresponding second steam pipe 52, the time for the steam to reach a steam switch is prolonged, and the heating time is further prolonged. Alternatively, the first steam pipe 51 and the second steam pipe 52 are both provided with flow guiding ribs, but the flow guiding ribs in the second steam pipe 52 are more than those in the first steam pipe 51.

For example, the first steam pipe 51 and the second steam pipe 52 are both disposed between the handle 3 and the inner container 11, the flow guide rib is disposed in the second steam pipe 52, the switch 6 is disposed above the handle 3, and the switch 6 is used to control the on/off of the steam port 111 and the first steam pipe 51 or the second steam pipe 52.

Alternatively, in addition to delaying the sensing time of the steam switch by extending the length of the steam flowing path in the steam channel, the cross section of the first steam channel may be larger than that of the second steam channel, that is, the cross section of the first steam pipe 51 is larger than that of the second steam pipe 52, that is, the pipe diameter of the first steam pipe 51 is larger than that of the second steam pipe 52, so that the steam passing through the first steam pipe 51 and the second steam pipe 52 has different amounts, and the tripping time of the first steam switch is different from that of the second steam switch. At this time, the diameter of the first steam pipe 51 is generally 8mm, and at this time, the diameter of the second steam pipe is smaller than 8 mm.

By adopting the matching of the steam switch and the steam channel, the double delay heating time is carried out, and a better effect is achieved.

Besides the above, the flow path length of the steam in the second steam channel may be smaller than that in the first steam channel, and other operation states may be achieved. For example, the steam generator is suitable for the work of plateau and plain, the boiling point of water is low in the plateau, the tripping temperature of the steam sheet is set to be low, the deformation temperature of the first steam switch is 30-55 degrees centigrade (taking 40 ℃ as an example), the deformation temperature of the second steam switch is 65-87 degrees centigrade (taking 75 ℃ as an example), but the flow path length of the steam in the first steam channel is lengthened in order to achieve the chlorine removal effect in the plateau.

Further, it is also conceivable for those skilled in the art that the switch 6 can be used to open and close the air inlets of the first steam pipe 51 and the second steam pipe 52, and can also be used to adjust the amount of steam entering the first steam pipe 51 and the second steam pipe 52 at the same time, for example, when the first steam pipe 51 and the second steam pipe 52 are the same, the switch 6 can control the effective cross-sectional area of the opened air inlets to be different when the switch 6 opens the air inlets of the first steam pipe 51 and the second steam pipe 52, respectively, and the effective cross-sectional area of the air inlet of the first steam pipe 51 is larger than that of the air inlet of the second steam pipe 52.

Further, the liquid heater further comprises a power switch 7 cooperating with the steam switch, and in order to facilitate the operation of the power switch 7, the power switch 7 extends from the gap between the first steam pipe 51 and the second steam pipe 52 to the outside of the assembly of the pot body 1. At this time, as shown in fig. 3, the steam box 8 is provided with two air inlet ports 81, and the first steam pipe 51 and the second steam pipe 52 are connected to the two air inlet ports 81, respectively.

Further, in order to make the working environments of the first steam switch and the second steam switch more independent, when the first steam switch and the second steam switch are simultaneously controlled by the same power switch 7, the tripping directions of the first steam switch and the second steam switch are the same, at this time, as shown in fig. 4, the first steam switch and the second steam switch are horizontally arranged side by side, preferably, the temperature controller 4 further comprises a steam box 8 arranged at the outer side of the steam switch, and the steam box 8 is respectively matched with the first steam switch, the second steam switch and the bottom cover 2 to form two steam cavities. Or a partition plate is arranged between the first steam switch and the second steam switch, the inner wall of the bottom cover 2 extends upwards to form the partition plate, the partition plate is abutted against the lower surface of the support of the temperature controller 4, and the first steam switch and the second steam switch are separated through the partition plate.

Or, when the first steam switch and the second steam switch are simultaneously controlled by the same power switch 7, the tripping directions of the first steam switch and the second steam switch are different, for example, the first steam switch and the second steam switch are longitudinally arranged side by side, the first steam switch trips upwards, the second steam switch trips downwards, and at this time, a connecting rod of the power switch 7 for controlling the steam switch is connected with the second steam piece upwards or downwards, i.e., when the connecting rod is connected with the second steam piece, the second steam piece drives the connecting rod to move downwards when reaching the deformation temperature, so as to disconnect the power supply; on the contrary, when the connecting rod is connected with the first steam sheet, the first steam sheet drives the connecting rod to move upwards when reaching the deformation temperature, so that the power supply is disconnected, and at the moment, the steam box 8 does not need to form two steam cavities.

The steam box 8 has the function of collecting steam below the steam switch and preventing leakage from affecting other components.

Alternatively, when the first steam switch and the second steam switch are simultaneously controlled by different power switches 7, the power switch 7 includes a first power switch 7 cooperating with the first steam switch and a second power switch 7 cooperating with the second steam switch. That is, only when the first power switch 7 is turned on, the first steam switch can be connected to the power supply, only when the second power switch 7 is turned on, the second steam switch can be connected to the power supply, and at this time, the first power switch 7 and the second power switch 7 can be used as the change-over switch 6.

With the above technical solution, when the first steam pipe 51 and the second steam pipe 52 are different, the deformation temperature of the second steam switch can be appropriately reduced.

The other undescribed structures refer to example 1.

Example 2:

based on the structure of embodiment 1 or 2, the above-mentioned switch 6 is provided on the handle 3, although the operation is convenient, when the connection structure of the pot lid and the handle 3 of the liquid heater is an automatic lid opening, the structure of the switch 6 may interfere the rotation of the pot lid connection member.

Further, the first steam passage includes a first steam pipe 51 and a third steam pipe 53, the second steam passage includes a second steam pipe 52 and a third steam pipe 53, whether conduction is controlled between the first steam pipe 51 and the third steam pipe 52, the third steam pipe 53 and the second steam pipe 52 by the changeover switch 6, the first steam pipe 51 is communicated with the first steam switch, and the second steam pipe 52 is communicated with the second steam switch. At this time, the switch 6 may be disposed at a side of the inner container 11, i.e., extended out of the handle seat 3131 or extended out of the bottom cover 2. By adopting the structure, the position selectable position of the change-over switch 6 is more, the structure is simple, and the operation is convenient.

As shown in fig. 7, 8 and 10, the first steam pipe 51, the second steam pipe 52 and the third steam pipe 53 are arranged in a T shape, the liquid heater further includes a power switch 7 engaged with the steam switch, the power switch 7 includes a switch bracket 72, and a lower portion of the third steam pipe 53 is located between two connecting arms of the switch bracket 72. The first steam pipe 51 and the second steam pipe 52 are arranged on the steam box 8, and the switch 6 is also arranged on the steam box 8, so that the steam box 8 and the switch 6 can be produced as one assembly, and the processing efficiency is improved. As shown in FIG. 9, the steam box 8 includes an inlet end 81 and two outlet ends, and the third steam pipe 53 is connected to the inlet end 81 of the steam box 8.

Alternatively, as shown in fig. 5 and 6, the first steam pipe 51, the second steam pipe 52 and the third steam pipe 53 are arranged in a Y-shape, the steam box 8 includes two inlet ends 81 and two outlet ends, and the first steam pipe 51 and the second steam pipe 52 are connected to the inlet ends 81 of the steam box 8, respectively.

Further, the third steam pipe 53 is integrally molded with the first steam pipe 51 and the second steam pipe 52.

The other undescribed structures refer to example 1.

Example 3:

based on the structure of the above embodiment 1 or 2, the mounting structure of the diverter switch is exemplified below with reference to the accompanying drawings: as shown in FIGS. 12 to 15, a liquid heater includes a pot assembly including a pot body 1, a handle 3 provided at a side of the pot body 1, a thermostat provided between the pot body 1 and a bottom cover 2, and a steam passage communicating a steam port 11 of the pot body 1 and a steam switch provided at the thermostat 4, the steam passage including a first steam passage for a first operation state and a second steam passage for a second operation state, the first steam passage including a first steam pipe 51 and a third steam pipe 53, the second steam passage including a second steam pipe 52 and a third steam pipe 53, in order to switch the first steam passage and the second steam passage, whether conduction is controlled by a switch 6 between the first steam pipe 51, the second steam pipe 52 and the third steam pipe 53, and in order to facilitate the setting of the switch 6, inlet ports of the first steam pipe 51 and the second steam pipe 52 are oppositely arranged, that is, the selector switch 6 is provided between the inlet ports of the first steam pipe 51 and the second steam pipe 52, and the selector switch 6 is used to block the inlet port of the first steam pipe 51 or the second steam pipe 52. It should be noted that the term "opposed arrangement" includes the case where the two are on the same horizontal line and the case where the two are inclined to each other. Preferably horizontally opposed.

The other end of the third steam pipe 53 may be connected to the steam box 8, in which case the other ends of the first steam pipe 51 and the second steam pipe 52 communicate with the steam port 111; alternatively, the other end of third steam pipe 53 may be connected to steam port 111, and in this case, the other ends of first steam pipe 51 and second steam pipe 52 may be connected to steam box 8.

The switch 6 is arranged above the handle 3, although the operation is convenient, when the cover of the liquid heater and the handle 3 are automatically opened, the structure of the switch 6 and the steam pipe may interfere the rotation of the cover connecting piece. With the above-mentioned solution, the situation that the switch 6 is not conveniently disposed above the handle 3 is solved, on one hand, the third steam pipe 53 is communicated with the first steam pipe 51 or the third steam pipe 53 is communicated with the second steam pipe 52 by operating the switch 6, so that the liquid heater is in different working states, on the other hand, the switch 6 is disposed at the joint of the third steam pipe 53 and the first steam pipe 51 and the second steam pipe 52, and for the convenience of the switch 6, the air inlets of the first steam pipe 51 and the second steam pipe 52 are oppositely disposed, and the switching between the steam pipes can be realized in the steam pipeline.

Further, the switch 6 includes an operation member 61, the operation member 61 includes a blocking portion 612 and an operation portion 611, the operation portion 611 acts on the blocking portion 612, the blocking portion 612 extends into the steam passage, and an outer wall of the blocking portion 612 is engaged with an inner wall of the first steam pipe 51 or the second steam pipe 52 to open and close an air inlet of the first steam pipe 51 or the second steam pipe 52.

Further, the blocking portion 612 is semi-spherical, and the operation portion 611 is rotated such that the arc surface of the blocking portion 612 is engaged with the inlet port of the first steam pipe 51 or the second steam pipe 52. At this time, when the arc surface of the blocking portion 612 faces the air inlet of the first steam pipe 51, the switch 6 blocks the first steam pipe 51 at this time, and steam cannot enter the first steam pipe 51; on the contrary, when the arc surface of blocking portion 612 faces the inlet of second steam pipe 52, switch 6 blocks second steam pipe 52, and steam cannot enter second steam pipe 52. In order to facilitate the blocking of steam, the inner diameter of the air inlet of the first steam pipe 51 or the second steam pipe 52 is smaller than the maximum diameter of the circular arc surface.

Further, the temperature controller 4 further includes a steam box 8 disposed outside the steam switch, the steam box 8 includes an air inlet 81 and two air outlet 82, the first steam pipe 51 and the second steam pipe 52 are disposed on the steam box 8, and the switch 6 is disposed on the steam box 8 and located between the air inlets of the first steam pipe 51 and the second steam pipe 52.

At this time, the third steam pipe 53 passes through the gap between the two connecting arms of the switch bracket 72 of the power switch 7 to be connected to the air inlet 81 of the steam box, the switch 6 is disposed below the power switch 7, and the power switch 7 can serve to hide the switch 6.

The above steam switches may be two or one, or even more, for example: when the number of the steam switches is two, the first steam switch (including the first steam sheet 41) and the second steam switch (including the second steam sheet 42) have different deformation temperatures, the steam box 8 is respectively matched with the two steam switches and the bottom cover 2 to form two independent steam cavities, the first steam pipe 51 is communicated with the first steam switch, the second steam pipe 52 is communicated with the second steam switch, and at the moment, the first steam channel and the second steam channel can be the same or different. Alternatively, the deformation temperatures of the two steam switches are the same, in which case the first steam channel and the second steam channel are different in order to achieve different effects.

When the steam switch is one: the steam box 8, the steam switch and the bottom cover 2 are matched to form a steam cavity, and at the moment, the first steam channel and the second steam channel are different in order to achieve different effects.

When the steam switches are two, the first steam switch and the second steam switch, and the deformation temperatures of the two steam switches are different, the steam box 8 is respectively matched with the two steam switches and the bottom cover 2 to form two independent steam cavities, at this time, the steam box 8 comprises two air inlet ends 81 and two air outlet ends 82, the two air inlet ends 81 are respectively connected with the first steam pipe 51 and the second steam pipe 52, at this time, the change-over switch 6 can be arranged above the power switch 7, and the observation by a user is facilitated. The power switch 7 is connected to the thermostat 4 through a gap between the first steam pipe 51 and the second steam pipe 52. By adopting the structure, the change-over switch is arranged on the steam pipe between the inner container and the handle, the position is more selected, and the structure is simple.

When the steam switch is one: the steam box 8, the steam switch and the bottom cover 2 are matched to form a steam cavity, and at the moment, the first steam channel and the second steam channel are different in order to achieve different effects.

Further, the third steam pipe 53 may be integrally formed with the first steam pipe 51 and the second steam pipe 52.

In order to facilitate the installation of the operation member 61 with the steam channel, the blocking portion 612 and the operation portion 611 are formed as a single piece, one end of the blocking portion 612 is located in the steam channel, and the other end of the blocking portion 612 abuts against the inner wall of the bottom cover 2 or the handle 3 and is connected with the operation portion 612 extending into the bottom cover 2 or the handle 3.

Further, the blocking portion 612 and the operating portion 611 are detachably connected. For example, the blocking portion 612 is provided with a fastening hole 6121, the operating portion 611 is provided with a fastening buckle 6111, the blocking portion 612 is installed in the steam channel, the bottom cover 2 or the handle 3 is installed, and then the fastening buckle 6111 of the operating portion 611 is inserted into the fastening hole 6121 for fixing, at this time, the bottom cover 2 or the handle 3 is clamped between the blocking portion 612 and the operating portion 611, and the bottom cover 2 or the handle 3 can also play a role in preventing the operating portion 611 from pulling out the blocking portion 612.

The blocking portion 612 is a flat plate, and the operation portion 611 slides left and right to drive the blocking portion 612 to slide left and right so that the flat plate blocks the air inlet of the first steam pipe 51 or the second steam pipe 52. In order to prevent the blocking portion 612 from falling off from the steam conduit, the switch further includes a fixing member fastened to the steam pipe, the fixing member is provided with a sliding hole 64, the operating member 61 moves in the sliding hole 64, and the fixing member can be used as the limiting member 63.

In order to make the user know when the operation is in place, a shift position is required to be set for prompting, and the switch 6 further includes a stopper 63 engaged with the operating member 61, and the stopper 63 restricts the operating member 61 to stop moving.

The side of the operating part 61 is provided with two positioning ribs 621 protruding outwards, the limiting part 63 is a stop rib matched with the positioning ribs 621, and the operating part 61 is rotated to enable the two positioning ribs 621 to be matched with the stop ribs respectively. Generally, the two positioning ribs 621 are disposed opposite to each other, and the stop rib is located on a rotation path of the two positioning ribs. The positioning rib 621 and the stop rib realize the rotation stroke of the switch 6, and the structure is simple and convenient to realize. While facilitating installation and operation when the diverter switch 6 is positioned above the power switch 7.

As shown in fig. 11, a gear 622 is provided on a side surface of the operating member 61, the stopper 63 is a rack engaged with the gear 622, and the operating member 61 is rotated to engage the gear 622 with the rack. Adopt above-mentioned scheme: (1) the movement range of the change-over switch 6 is determined by the left and right movement limit positions of the rack; (2) above-mentioned locating part 63 can install on steam box 8 through a supporting slot, can guarantee the fixed of change over switch 6 turned position through the frictional force effect in rack and supporting slot, and change over switch 6 oneself takes place to rotate when the vibrations of electric kettle boiling water prevent to appear and causes the problem that steam got into two steam passages simultaneously. The gear 622 is only partially provided on the side surface of the operating member 61, which saves cost.

Example 4:

based on the structure of the above embodiment 1 or 2, the mounting structure of the diverter switch is exemplified below with reference to the accompanying drawings: as shown in fig. 16 and 17, in order to realize different heating functions by controlling different steam pipes through which steam passes, a liquid heater is provided, which comprises a kettle body 1, a handle arranged at a side of the kettle body 1, a temperature controller 4 arranged between the kettle body 1 and a bottom cover 2, and a first steam pipe 51 and a second steam pipe 52 for communicating a steam port of the kettle body 1 with a steam switch on the temperature controller 4, further, a first steam chamber 33 and a second steam chamber 34 are arranged on the handle, the first steam chamber 33 and the second steam chamber 34 are not communicated with each other, for easy operation, a switch arranged on the handle is also provided, by arranging the switch on the handle, a user can conveniently see the switch, one side of the first steam chamber 33 and one side of the second steam chamber 34 are respectively connected with an air inlet of the first steam pipe 51 and one side of the second steam pipe 52, the other side is matched with the change-over switch to open and close the air inlets of the first steam pipe 51 and the second steam pipe 52.

In other words, when the switch opens the first steam chamber 33 and closes the second steam chamber 34, the steam port is connected to the first steam pipe 51; on the contrary, when the first steam chamber 33 is closed and the second steam chamber 34 is opened, the steam ports are connected to the second steam pipe 52. It is noted here that closing the first steam chamber 33 or the second steam chamber 34 means that most of the steam enters from the other steam chamber, but it is still possible that a small amount of steam enters the closed steam chamber. The steam chambers (the first steam chamber 33 and the second steam chamber 34) are arranged on the handle, so that the processing is convenient, and the structure is firm.

Through the arrangement, the first steam chamber 33 and the second steam chamber 34 are arranged on the handle, on one hand, the first steam chamber 33 and the second steam chamber 34 are arranged on the handle, the structure is stable, and the connection of the first steam pipe 51 and the second steam pipe 52 is convenient; on the other hand, the matching of the switch and the first steam chamber 33 and the second steam chamber 34 is also facilitated, that is, the steam ports are connected with the first steam pipe 51 and the second steam pipe 52 through the handle, and two steam chambers which are not communicated with each other are arranged on the handle, so that the first steam pipe 51 and the second steam pipe 52 do not interfere with each other during the working process, and the working is stable. In addition, the change-over switch is arranged on the handle, so that the operation is convenient and the observation is easy. The switch may be disposed between the steam port and the steam chamber, or between the steam pipe and the steam chamber, preferably between the steam port and the steam chamber.

Further, the switch includes an operating portion 611 and a blocking portion 612, the operating portion 611 acts on the blocking portion 612, and the blocking portion 612 opens and closes the first vapor chamber 33 and the second vapor chamber 34. The operation part 611 is exposed out of the handle for convenient operation, and the operation part 611 drives the blocking part 612 to work, so that the structure is simple, the operation is convenient, and the observation is easy. In order to make the effect better in the closed state, the area of the blocking portion 612 is not smaller than the area of the first vapor chamber 33 or the second vapor chamber 34.

Further, the blocking portion 612 is a flat plate, the first steam chamber 33 and the second steam chamber 34 are disposed on the same horizontal line, and the operation portion 611 slides left and right to drive the blocking portion 612 to slide left and right to open and close the first steam chamber 33 and the second steam chamber 34. In other words, in order to facilitate the sliding operation of the operation part 611, the first steam chamber 33 and the second steam chamber 34 are arranged side by side, and the blocking part 612 having a flat plate structure has a simple structure and low cost.

Further, in order to better improve the operation experience, a limiting part is arranged on the handle, and the operation part 611 or the blocking part 612 abuts against the limiting part to stop moving. The setting of above-mentioned spacing portion is used for the suggestion user to operate the position, promotes sense organ experience.

Furthermore, especially when the blocking portion 612 is disposed between the steam port and the steam box 8, in order to facilitate the operation of the operating portion 611 on the handle and avoid the operating portion 611 from affecting the connection structure of the pot lid (not labeled) and the handle, a bending portion 613 is disposed between the operating portion 611 and the blocking portion 612, and the bending portion 613 extends and bends from the operating portion 611 toward the pot body 1. The bent portion 613 is disposed to make the operating portion 611 far away from the lid, and the blocking portion 612 is located between the steam outlet and the steam box 8.

Further, when the lid is rotatably connected to the handle, in order to avoid the switch hanging affecting the rotation of the lid connector, the bent portion 613 is provided with an avoiding hole 614, so that the connector can rotate in the avoiding hole 614.

The operation portion 611 and the blocking portion 612 may be integrally formed or may be formed as a separate piece, which facilitates the design and installation of the structure.

The handle may further include a mounting bracket on which the first and second steam chambers 33 and 34 are provided.

The steam chamber refers to one or both of the first and second steam chambers 33 and 34, and similarly, the steam pipe refers to one or both of the first and second steam pipes 51 and 52.

Or, the blocking portion 612 is a flat plate, the first steam chamber 33 and the second steam chamber 34 are arranged in a staggered manner, and the operation portion 611 slides left and right to drive the blocking portion 612 to slide left and right to open and close the first steam chamber 33 and the second steam chamber 34. In order to facilitate the sliding operation of the operation part 611, the first steam chamber 33 and the second steam chamber 34 may be disposed in a staggered manner, in addition to the first steam chamber 33 and the second steam chamber 34, and particularly, when the first steam chamber 51 and the second steam chamber 52 are disposed between the handle seat 31 and the inner case 11 and in the handle 32, respectively, the first steam chamber 33 and the second steam chamber 34 are disposed in a staggered manner so as to facilitate the connection between the first steam chamber 51 and the second steam chamber 52 and the first steam chamber 33 and the second steam chamber 34, and the size of the flat plate is at least the sum of the areas of the first steam chamber 33 and the second steam chamber 34.

Or, the blocking portion 612 is a flat plate, the first steam chamber 33 and the second steam chamber 34 are vertically disposed on the same vertical line, the operating portion 611 presses the blocking portion 612 up and down to open and close the first steam chamber and the second steam chamber, and for the convenience of the operation portion 611 presses the operating portion up and down, the first steam chamber 33 and the second steam chamber 34 are vertically disposed.

Further, the flat plate is provided with vent holes 615, and the vent holes 615 are matched with the first steam chamber 33 or the second steam chamber 34 to conduct the steam ports and the first steam pipe 51 or the second steam pipe 52. For example, the second steam chamber 34 is located above the first steam chamber 33, for example, the middle of the flat plate is provided with a vent hole 615, and the two sides of the flat plate located at the vent hole 615 are solid plates. That is, when the operation part 611 is in the initial state, the ventilation holes 615 communicate with the second steam chamber 34, the lower portion of the flat plate closes the first steam chamber 33, and when the operation part 611 is pressed, the blocking part 612 moves downward until the ventilation holes 615 communicate with the first steam chamber 33, while the upper portion of the flat plate closes the second steam chamber 34.

Alternatively, when the switch is in the initial state, the lower portion of the flat plate closes the second steam chamber, and at this time, the steam port communicates with the first steam chamber 33, so that the steam port communicates with the steam switch through the first steam pipe 51, and when the operation portion 611 is pressed, the stopper portion 612 moves downward, and the lower portion of the flat plate closes the first steam chamber 33, and at this time, the vent hole 615 communicates with the second steam chamber 34, so that the steam port communicates with the steam switch through the second steam pipe 52.

Of course, the blocking portion 612 may be a solid plate in the middle and provided with vent holes 615 on both sides.

Further, in order to facilitate the reset of the switch, the switch further includes a reset elastic member 65, and both ends of the reset elastic member 65 are respectively connected to the operating part 611 and the handle.

In the above embodiment 4, "up and down" refers to the height direction of the can 1, and "left and right" refers to the radial direction of the can 1.

The first steam switch and the second steam switch in the above embodiments can be arranged at the bottom of the inner container 11, and one steam switch can be arranged at the bottom of the inner container 11 and one steam switch can be arranged on the handle 3.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A liquid heater comprises a kettle body assembly, the kettle body assembly comprises an inner container, a handle arranged on the side part of the inner container, a temperature controller arranged between the inner container and a bottom cover, and a steam channel communicated with a steam port of the inner container and a steam switch on the temperature controller, characterized in that the steam switch comprises a first steam switch and a second steam switch, the deformation temperature of the first steam switch is different from that of the second steam switch, the first steam switch and the second steam switch control the same heater, the steam channel comprises a first steam channel used in a first working state and a second steam channel used in a second working state, and the steam channel also comprises a change-over switch, the change-over switch is used for selecting the connection state of the inner container and the steam switch to respectively realize the dechlorination water boiling function and the normal water boiling function, and the change-over switch at least comprises a first connection state and a second connection state; in a first connection state, the inner container is communicated with the first steam switch through the first steam channel; and in a second connection state, the inner container is communicated with the second steam switch through the second steam channel.

2. A liquid heater as claimed in claim 1, wherein: the first steam channel is a first steam pipe, the second steam channel is a second steam pipe, the first steam pipe is communicated with the first steam switch, the second steam pipe is communicated with the second steam switch, and the change-over switch is used for opening and closing air inlets of the first steam pipe and the second steam pipe.

3. A liquid heater as claimed in claim 1, wherein: the first steam channel comprises a first steam pipe and a third steam pipe, the second steam channel comprises a second steam pipe and a third steam pipe, whether the first steam pipe, the second steam pipe and the third steam pipe are conducted or not is controlled through a selector switch, the first steam pipe is communicated with the first steam switch, and the second steam pipe is communicated with the second steam switch.

4. A liquid heater according to any one of claims 1-3, wherein: a flow path length of steam within the first steam channel is less than a flow path length within the second steam channel;

alternatively, the cross-section of the first steam channel is larger than the cross-section of the second steam channel.

5. A liquid heater according to any one of claims 1-3, wherein: the temperature controller also comprises a steam box arranged on the outer side of the steam switch, and the steam box is respectively matched with the first steam switch, the second steam switch and the bottom cover to form two steam cavities.

6. A liquid heater as claimed in claim 5, wherein: the steam box comprises two air inlet ends and two air outlet ends, the two air outlet ends correspond to the steam cavity respectively, and the air outlets of the first steam channel and the second steam channel are connected with the two air inlet ends respectively.

7. A liquid heater as claimed in claim 5, wherein: the steam box comprises an air inlet end and two air outlet ends, the two air outlet ends correspond to the steam cavity respectively, and the change-over switch is arranged on the steam box and located between the two air outlet ends.

8. A liquid heater as claimed in claim 2 or 3, wherein: the liquid heater also comprises a power switch matched with the steam switch, and the power switch extends out of the outer side of the kettle body assembly from a gap between the first steam pipe and the second steam pipe.

9. A liquid heater as claimed in claim 3, wherein: the liquid heater also comprises a power switch matched with the steam switch, the power switch comprises a switch bracket, and the lower part of the third steam pipe is positioned between two connecting arms of the switch bracket.

10. A liquid heater according to any one of claims 1-3, wherein: a partition plate is arranged between the first steam switch and the second steam switch, the inner wall of the bottom cover extends upwards to form the partition plate, and the partition plate is abutted against the lower surface of the temperature controller support;

or, the liquid heater also comprises a power switch matched with the steam switch, and the power switch comprises a first power switch matched with the first steam switch and a second power switch matched with the second steam switch.

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