CN103908156A - Drinking equipment - Google Patents

Abstract

The invention discloses drinking equipment. The drinking equipment comprises a machine body with an opening being formed in the top end, a water tank which is arranged on the upper portion in the machine body and is provided with a water tank port in the top, a water source which is communicated with the water tank through a pipeline and is used for supplying water to the water tank, and an end cover which is arranged on the machine body in a way of moving between a closing position and an opening position and is used for covering the water tank port at the closing position and opening the water tank port at the opening position to clean the inside of the water tank conveniently. According to the drinking equipment, the end cover is movably arranged on the machine body and can be switched between the closing position where the water tank port is covered and the opening position where the water tank port is opened to clean the inside of the water tank conveniently. The drinking equipment is simple in structure, convenient to operate, and convenient for cleaning the water tank.

Description

a drinking water device

technical field

The invention relates to the technical field of household appliance manufacturing, in particular to a drinking water device.

Background technique

Drinking water equipment is usually composed of water sources, water tanks, pipelines and electric controls, among which the water tank is the core component for temperature regulation of the water in the water source. Water tanks can generally be divided into two types according to their location: built-in water tanks and external water tanks. Since the built-in water tank is located inside the water dispenser and the tank body is mostly closed, it is not easy to clean, and it is easy to accumulate scale over time, causing secondary pollution of water. In addition, the hot water tank used for water heating will repeatedly boil to cause thousands of boiling water and immediately mix with warm water to form yin and yang water after the hot water is released, which is not conducive to health. The external water tank is generally a kettle. Although it can solve some of the problems of the above-mentioned built-in water tank, the cost is relatively high, and it is inconvenient to use and does not meet the habit of drinking water from a water dispenser.

An existing water dispenser provides a solution in which the water tank can be disassembled and taken out, and then thoroughly cleaned after it is taken out. Its realization method is to divide the water machine as a whole into two hinged upper and lower sections. However, it is not very convenient to open the top cover assembly water tank, and the water bucket needs to be taken off, and the water in the water dividing tank must also be discharged. And the water tank and the top cover assembly need to be well sealed, otherwise it is easy to cause water leakage.

An existing washable water dispenser provides a hot water tank with a hot water tank cover on the upper end, and the hot tank cover is fixedly installed on the upper end surface of the casing through buckles and slots. Although the inside of the heater can be cleaned by adding a heater cover, it only adds a heater cover to the upper opening of the conventional hot water tank, and the heater cover needs to be sealed with the upper end of the heater and the casing Cooperate, and the interior of the hot gall cover is provided with complex structures such as a steam liquefaction chamber, and it is easy to lose after the hot gall cover is taken off. It can only be disassembled and cleaned, and it cannot prevent the problems of thousands of boiling water and yin and yang water.

Contents of the invention

The present invention aims to solve one of the above-mentioned technical problems at least to a certain extent.

For this reason, an object of the present invention is to propose a kind of drinking water equipment that is simple in structure, easy to operate, and is convenient to clean water tank.

The drinking water equipment according to the embodiment of the present invention includes: a body, the top of which has an opening; a water tank, which is installed in the upper part of the body, and the top of the water tank has a water tank mouth; a water source, The water source is connected to the water tank through a pipeline for supplying water to the water tank; and an end cover, the end cover is movably installed on the body between a closed position and an open position, and when the closed position In the open position, the end cover covers the mouth of the water tank, and in the open position, the end cover opens the mouth of the water tank for cleaning the inside of the water tank.

According to the drinking water equipment of the embodiment of the present invention, the end cover is movably installed on the body, and the end cover is in the closed position covering the water tank mouth and the open position for opening the water tank mouth to clean the inside of the water tank Can be switched between, simple structure, convenient operation, easy to clean the water tank.

In addition, the drinking water equipment according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

According to an example of the present invention, there are multiple water tanks, at least one of the water tanks is installed in the upper part of the body, and the water tank mouth of at least one of the water tanks is opened and closed by the end cover.

According to an example of the present invention, it also includes a water distribution tank for storing water from the water source, the water distribution tank is arranged in the body and is connected to the water source and the plurality of water tanks respectively so as to store the water from the water source. Water from the water source is distributed to the plurality of water tanks.

According to an example of the present invention, the end cover is detachably mounted on the body through a buckle structure.

According to an example of the present invention, the end cover is mounted on the body in a translational manner or in a plane-rotatable manner.

According to an example of the present invention, the end cover is reversibly mounted on the body through a pin shaft.

According to an example of the present invention, the end cover is provided with a first clamping part, and the body is provided with a second clamping part for engaging with the first clamping part to fix the end cover at the closed position. Two clamping parts.

According to an example of the present invention, an elastic member for pushing the end cover to the open position is provided between the end cover and the body when the first and second locking parts are disengaged.

According to an example of the present invention, the end cover is provided with a steam inlet and a steam outlet, and the body is provided with a steam interface that is connected to the steam outlet when the end cover is in a closed position.

According to an example of the present invention, the top of the water tank is opened to form the water tank mouth, and the outer periphery of the water tank mouth is provided with a flange extending radially outward, and the flange is supported on the opening on the top surface of the peripheral wall.

According to an example of the present invention, the lower surface of the end cap is provided with a boss that fits in the mouth of the water tank when the end cap is in the closed position.

According to an example of the present invention, it further includes: a water circuit on-off valve connected between the water source and the water tank; and a water level detector for detecting the water level in the water tank, According to the detected water level information, the on and off of the water circuit on-off valve is controlled.

According to an example of the present invention, the water level detector includes a high water level sensor for detecting a high water level in the water tank and a low water level sensor for detecting a low water level in the water tank.

According to an example of the present invention, the water source is a bucket that provides bottled water, and the drinking water equipment further includes: a suction pipe for drawing water from the bucket of bottled water, one end of the water suction pipe extends into the In the water bucket and adjacent to the bottom of the water bucket, the other end of the pumping pipeline is directly connected to the water tank or indirectly connected through a pipeline; and an air cleaning assembly, the air cleaning assembly is installed on the opening of the water bucket The place is used to purify the air entering the bucket from the outside.

According to an example of the present invention, the water source is a bucket that provides bottled water, the bucket is placed at the bottom of the body, and the body has a side for taking the bucket out and putting it into the body an opening, and a water pump is provided on the pipeline between the water source and the water tank.

According to an example of the present invention, the bottom of the body is provided with a bucket base for placing the bucket, and the upper surface of the bucket base is provided with rolling parts.

According to an example of the present invention, a part of the upper surface of the bucket base adjacent to the side opening is formed as a slope extending downward toward the side opening, and the rest of the upper surface of the bucket base is a plane. The highest point of at least one of the rolling elements on the plane is higher than the bottom surface of the bucket placed on the plane.

According to an example of the present invention, the water tank is configured as a hot water tank capable of heating water in the water tank and has an interface hole, and the drinking water equipment further includes an interface assembly arranged at the interface hole, the The interface assembly includes: an outer tube, the first end of which communicates with the hot water tank; an inner tube, where the inner tube is sheathed in the outer tube and the outer wall of the inner tube is connected to the inner wall of the outer tube spaced apart to define an annular space, the first end of the inner pipe extends into the hot water tank; a first connecting pipe, one end of the first connecting pipe is connected to the second end of the inner pipe; and A second connecting pipe, one end of the second connecting pipe is connected to the second end of the outer pipe so as to communicate with the annular space.

According to an example of the present invention, there are two water tanks, one of which is a hot water tank and the other is a cold water tank, and the water source is located inside the body and below the hot water tank and the cold water tank A water bucket that provides bottled water, the bottom wall or side wall of the hot water tank is provided with heating pipes or electromagnetic heating equipment and the hot water tank is provided with an insulation layer, and the water in the cold water tank is refrigerated by refrigeration equipment .

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic diagram of a drinking water device according to an embodiment of the present invention;

Fig. 2 is the enlarged schematic view of D in Fig. 1;

Fig. 3 is the enlarged schematic view of M in Fig. 1;

Fig. 4 is the three-dimensional schematic diagram of Fig. 3;

Fig. 5 is a schematic diagram of a drinking water device according to another embodiment of the present invention;

Fig. 6 is a schematic diagram of a base of a drinking water device according to an embodiment of the present invention;

Fig. 7 is a schematic diagram of a drinking water device according to another embodiment of the present invention;

Fig. 8 is a schematic diagram of a drinking water device according to yet another embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The drinking water device according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 8 , the drinking water equipment according to the embodiment of the present invention includes: a body 1 , a water tank 3 , a water source 2 and an end cover 4 .

Specifically, the top end of the body 1 has an opening.

The water tank 3 is installed on the top in the body 1 , and the top of the water tank 3 has a water tank mouth 31 .

The water source 2 is connected to the water tank 3 through a pipeline for supplying water to the water tank 3 .

The end cover 4 is movably installed on the machine body between the closed position and the open position. In the closed position, the end cover 4 covers the water tank mouth 31. In the open position, the end cover 4 opens the water tank mouth 31 for easy cleaning. The interior of the jug 3.

According to the drinking water equipment of the embodiment of the present invention, the end cover 4 is movably installed on the body 1 and the end cover 4 is in the closed position covering the water tank mouth 31 and the open position for opening the water tank mouth 31 so as to clean the inside of the water tank 3 Can be switched between, simple structure, convenient operation, easy to clean the water tank.

As shown in FIG. 8 , according to an example of the present invention, there may be multiple water tanks 3 . Two water tanks 3 are taken as an example in FIG. 8 , and of course, it is not limited to two water tanks 3 . Wherein at least one water tank 3 is installed on the upper part in the body 1 and the water tank mouth 31 of the water tank 3 is opened and closed by the end cover 4 .

As shown in FIG. 7 , according to an example of the present invention, the drinking water equipment further includes a water distribution tank 5 for storing water from the water source 2 . The water distribution tank 5 is arranged in the machine body 1 and connected to the water source 2 and the plurality of water tanks 3 to distribute the water from the water source 2 to the plurality of water tanks 3 .

According to an example of the present invention, the end cover 4 is detachably installed on the machine body 1 through a buckle structure. Advantageously, the end cap 4 is mounted on the body 1 in a translational or in-plane rotatable manner. For example, on the standpoint of the user, the end cover 4 can translate in the front-back direction or the left-right direction of the user to switch between the open position or the closed position; switch between the open and closed positions described above. Therefore, the operation is convenient.

According to an example of the present invention, the end cover 4 is reversibly installed on the machine body 1 through a pin shaft. That is to say, the end cover 4 can rotate around the axis in the horizontal direction to switch between the open position and the closed position.

Advantageously, the end cover 4 is provided with a first clamping portion, and the body 1 is provided with a second clamping portion for engaging with the first clamping portion to fix the end cover 4 at the closed position. An elastic member 41 is provided between the end cover 4 and the body 1 for pushing the end cover 4 to the open position when the first locking part and the second locking part are disengaged. That is to say, under no external force, the elastic member 41 always pushes the end cover to the open position. In other words, when the first locking part and the second locking part are disengaged, the end cover 4 can be switched from the closed position to the open position under the action of the restoring force of the elastic member 41; When the first snapping portion is snapped connected to the second snapping portion, the end cover 4 is in the closed position, and the elastic member 41 is in a compressed and deformed state.

As shown in FIG. 5 , according to an example of the present invention, the end cover 4 is provided with a steam inlet 42 and a steam outlet 43 . Advantageously, the machine body 1 is provided with a steam port 14 that is connected to the steam outlet 43 when the end cover 4 is in the closed position. Thus, safety accidents caused by excessive air pressure can be avoided when the end cover 4 is in the closed position.

According to an example of the present invention, the top of the water tank 3 is open to form a water tank mouth 31 . The outer periphery of the water tank mouth 31 is provided with a radially outwardly extending flange, and the flange is supported on the top surface of the outer peripheral wall of the opening of the body 1 . That is to say, when the water tank 3 is installed on the upper part of the body 1, the opening of the body 1 can be closed.

According to an example of the present invention, the lower surface of the end cap 4 (ie pointing to the upper left direction as shown in FIG. 5 ) is provided with a boss that fits in the water tank mouth 31 when the end cap 4 is in the closed position. As a result, the fit is tighter.

As shown in Fig. 1, Fig. 7 and Fig. 8, according to an example of the present invention, the drinking water equipment further includes: a water circuit on-off valve 7 and a valve for detecting the water level in the water tank 3 and controlling the water circuit according to the detected water level information. The on-off valve 7 is connected and disconnected to the water level detector 6 . The water on-off valve 7 is connected between the water source 2 and the water tank 3 . Thus, it is possible to control whether to add water to the water tank 3 according to the water level information in the water tank 3 .

Advantageously, the water level detector 6 includes a high water level sensor 61 for detecting a high water level in the water tank 3 and a low water level sensor 62 for detecting a low water level in the water tank 3 . Advantageously, it is possible to control whether to add water to the water tank 3 according to the low water level information, and whether to stop replenishing water to the water tank 3 according to the high water level.

As shown in FIG. 1 , FIG. 2 , FIG. 7 and FIG. 8 , according to an example of the present invention, the water source 2 is a bucket 21 that provides bottled water. The drinking water equipment also includes: a water pumping pipe 8 and an air cleaning assembly 9 for pumping water from the bucket 21 of bottled water. One end of the suction pipe 8 extends into the water bucket 21 and is adjacent to the bottom of the water bucket 21, and the other end of the water suction pipe 8 is directly connected to the water tank 3 or indirectly connected through a pipeline. The air cleaning assembly 9 is installed at the opening of the bucket 21 for purifying the air entering the bucket 21 from the outside. As shown in FIG. 7 , the other end of the pumping pipe 8 is directly connected to the water tank 3 . As shown in Fig. 1 and Fig. 8, the other end of the pumping pipe 8 is indirectly connected to the water tank 3 through a pipeline.

As shown in FIG. 1 , according to an example of the present invention, the water source 2 is a bucket 21 that provides bottled water, and the bucket 21 is placed at the bottom of the machine body 1 . The body 1 has a side opening for taking out and putting the bucket 21 into the body 1 . A water pump 10 is provided on the pipeline between the water source 2 and the water tank 3 . Advantageously, the bottom of the machine body 1 is provided with a bucket base 11 for placing a bucket 21 . A rolling element 12 is provided on the upper surface of the bucket base 11 . Thus, when the user replaces the water bucket 21 , the rolling member 12 can be used to change the friction between the water bucket 21 and the water bucket base 11 into rolling friction, and the friction force is small, which is convenient for the user to use.

As shown in FIG. 6 , according to an example of the present invention, a portion of the upper surface of the bucket base 11 adjacent to the side opening is formed as a slope extending downward toward the side opening and the rest of the upper surface of the bucket base 11 is flat. The highest point of at least one rolling element 12 on the plane is higher than the bottom surface of the bucket 21 placed on the plane. Thus, the water bucket base 11 is formed into a slope and a plane, which is convenient for users to place and replace the water bucket 21 . Moreover, when the bucket 21 is placed in place (that is, when placed on the plane), the highest point of at least one rolling member 12 is higher than the bottom surface of the bucket 21 placed on the plane, which can limit the bucket 21 , to prevent the bucket 21 from slipping off the bucket base due to the existence of the rolling element 12, ensuring safe and reliable use.

As shown in FIG. 1 , according to an example of the present invention, the water tank 3 is configured as a hot water tank capable of heating water in the water tank 3 and having an interface hole 311 . The drinking water equipment also includes an interface component arranged at the interface hole 311 . The interface assembly includes: an outer tube 32 , an inner tube 33 , a first connecting tube 34 and a second connecting tube 35 . The first end of the outer pipe 32 communicates with the hot water tank. The inner tube 33 is sheathed in the outer tube 32 and the outer wall of the inner tube 33 is spaced apart from the inner wall of the outer tube 32 to define an annular space. The first end of the inner tube 33 extends into the hot water tank. One end of the first connecting pipe 34 is connected to the second end of the inner pipe 33 . One end of the second connecting pipe 35 is connected to the second end of the outer pipe 32 to communicate with the annular space. The interface assembly reduces the number of interfaces, is simple to manufacture and assemble, and has high production efficiency, and can simultaneously supply hot water and cold water without mixing between the hot and cold water.

As shown in Fig. 8, according to an example of the present invention, there are two water tanks 3, one of which is a hot water tank and the other is a cold water tank. The water source 2 is a bucket 21 provided in the body 1 and below the hot water tank and the cold water tank to provide bottled water. The bottom wall or side wall of the hot water tank is provided with heating pipes or electromagnetic heating equipment, and the hot water tank is provided with an insulation layer. The water in the cold water tank is refrigerated by refrigeration equipment.

According to the drinking water equipment of the embodiment of the present invention, the water tank 3 can be cleaned conveniently, the water tank 3 can be replenished or stopped by automatic control, the water bucket 21 can be conveniently placed or replaced, and the use safety is high.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limitations to the present invention. Variations, modifications, substitutions, and modifications to the above-described embodiments are possible within the scope of the present invention.

Claims (19)

1. a drinking equipment, is characterized in that, comprising:

Body, the top of described body has opening;

Water pot, described water pot is arranged on the top in described body, and the top of described water pot has water pot mouth;

Water source, described water source is connected with described water pot by pipeline, for supplying water to described water pot; With

End cap, described end cap is arranged on movably on body between closed position and open position, covers described water pot mouth at end cap described in described closed position, opens described water pot mouth so that clean described water pot inside at end cap described in described open position.

2. drinking equipment according to claim 1, is characterized in that, described water pot is multiple, described at least one water pot be arranged on top in described body and described at least one the water pot mouth of water pot opened and closed by described end cap.

3. drinking equipment according to claim 2, it is characterized in that, also comprise the diversion box for storing the water that comes from described water source, described diversion box is located in described body and is connected the moisture that comes from described water source to be fitted on to described multiple water pot with described multiple water pots with described water source respectively.

4. drinking equipment according to claim 1, is characterized in that, described end cap is removably mounted on described body by buckle structure.

5. drinking equipment according to claim 1, is characterized in that, described end cap can translation ground or can be planar arranged on rotationally on described body.

6. drinking equipment according to claim 1, is characterized in that, described end cap by bearing pin turning be arranged on described body.

7. according to drinking equipment described in claim 4-6, it is characterized in that, described end cap is provided with the first Access Division, and described body is provided with for engage the second Access Division described end cap is fixed on to described closed position with described the first Access Division.

8. drinking equipment according to claim 7, is characterized in that, is provided with the elastic component of described end cap being shifted when departing from described the first and second Access Divisions onto to described open position between described end cap and described body.

9. drinking equipment according to claim 1, is characterized in that, described end cap is provided with steam inlet and steam (vapor) outlet, and described body is provided with the vapor interface docking with described steam (vapor) outlet in the time that described end cap is in the closed position.

10. drinking equipment according to claim 1, is characterized in that, the top of described water pot is opened wide to form described water pot mouth, and the periphery of water pot mouth is along being provided with the flange extending radially outward, and described flange support is on the end face of the periphery wall of described opening.

11. drinking equipments according to claim 1, is characterized in that, the lower surface of described end cap is provided with and in the time that described end cap is in the closed position, is engaged in the boss in described water pot mouth.

12. according to drinking equipment described in any one in claim 1-11, it is characterized in that, also comprise:

Water route on-off valve, described water route on-off valve is connected between described water source and described water pot; With

For detection of the water level detector of the water level in described water pot, conducting and the disconnection of water route on-off valve described in the water level information control detecting according to it.

13. according to drinking equipment described in claim 12, it is characterized in that, described water level detector comprise for detection of the high water level sensor of the high water level in described water pot with for detection of the low water level sensor of the low water level in described water pot.

14. according to drinking equipment described in any one in claim 1-11, it is characterized in that, described water source is for providing the bucket of bottled water, and described drinking equipment also comprises:

For the pumping conduit drawing water in the bucket of described bottled water, one end of described pumping conduit is stretched in described bucket and the bottom of contiguous described bucket, and the other end of described pumping conduit is directly connected or is indirectly connected by pipeline with described water pot; With

Clean air package, described clean air package is arranged on the opening part of described bucket, enters the air in described bucket for purifying from the external world.

15. according to drinking equipment described in any one in claim 1-11, it is characterized in that, described water source is for providing the bucket of bottled water, described bucket is placed on the bottom in described body, described body has the lateral opening for described bucket being taken out and put into described body, and the pipeline between described water source and described water pot is provided with water pump.

16. according to drinking equipment described in claim 15, it is characterized in that, the bottom in described body is provided with the bucket base for placing described bucket, and the upper surface of described bucket base is provided with rolling member.

17. according to drinking equipment described in claim 16, it is characterized in that, it is plane to the remainder of the upper surface of the domatic and described bucket base of downward-extension that a part for the contiguous described lateral opening of the upper surface of described bucket base is formed as towards described lateral opening, is located in described plane the peak of rolling member described at least one higher than the bottom surface that is placed on the described bucket in described plane.

18. according to drinking equipment described in any one in claim 1-11, it is characterized in that, the hot-water cylinder that described water pot is configured to heat the water in described water pot and has interface holes, described drinking equipment also comprises the interface module that is located at described interface holes place, described interface module comprises:

Outer tube, the first end of described outer tube is communicated with described hot-water cylinder;

Inner tube, described inner tube be set in described outer tube and the outer wall of described inner tube and the inwall of described outer tube spaced apart to limit annular space, the first end of described inner tube stretches in described hot-water cylinder;

The first tube connector, one end of described the first tube connector is connected with the second end of described inner tube; With

The second tube connector, one end of described the second tube connector is connected to be communicated with described annular space with the second end of described outer tube.

19. according to drinking equipment described in any one in claim 1-11, it is characterized in that, described water pot is provided with two, one of them is that hot-water cylinder and another are cold water tank, described water source is for being located in described body and being positioned at the bucket that bottled water is provided below described hot-water cylinder and cold water tank, the diapire of described hot-water cylinder or sidewall are provided with heat-generating pipe or electromagnetic heating apparatus and described hot-water cylinder and are provided with heat-insulation layer, and the water in described cold water tank is by refrigerating device refrigeration.