CN219014647U - Heating inner container assembly and electric water heater - Google Patents

Abstract

The utility model discloses a heating inner container assembly and an electric water heater. The heating liner assembly includes: the inner container is provided with a water inlet pipe and a water outlet pipe; an electric heating component, which is arranged in the inner container; the water inlet pipe comprises a first pipe body and a second pipe body, a plurality of first water outlet holes are formed in the first pipe body, a water outlet portion is formed in the second pipe body, a second water outlet hole is formed in the water outlet portion in the length direction, the first pipe body is inserted into the second pipe body, the second pipe body shields the first water outlet holes, the water outlet portion is close to the inner wall of the inner container, the water outlet direction of the first water outlet holes is different from the water outlet direction of the second water outlet holes, one end portion of the first pipe body is fixed to the inner container, and the other end portion of the first pipe body and the second pipe body are located in the inner container. The water inlet impact force of the water inlet pipe is slowed down, so that the hot water output rate is improved, and the use experience of a user is further improved.

Description

Heating inner container assembly and electric water heater

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a heating inner container assembly and an electric water heater.

Background

At present, the water heater is a household appliance commonly used in daily life of people, the electric water heater can be divided into a water storage type electric water heater and an instant electric water heater according to the heating power, and the water storage type electric water heater is provided with a water tank, so that the water storage type electric water heater has the characteristics of large water yield, stable water temperature and the like, and is purchased and used by more families.

The water storage type electric water heater in the prior art is generally provided with a water inlet pipe and a water outlet pipe on the inner container, and is also provided with an electric heating pipe for meeting the heating requirement. For example, chinese patent publication No. CN205536509U discloses an electric water heater with high hot water output rate, in which a water inlet pipe is transversely arranged in an inner container and outputs water downward, so as to improve the hot water output rate.

However, in the actual use process, the water inlet pipe has serious interaction of cold water and hot water up and down in the inner container due to overlarge water outlet speed, so that the hot water output rate is reduced. In view of this, how to design a technology for improving the hot water output rate of the liner to improve the user experience is a technical problem to be solved by the present utility model.

Disclosure of Invention

The utility model provides an electric water heater and a control method thereof, which realize that the water inlet impact force of a water inlet pipe is slowed down so as to improve the hot water output rate and further improve the use experience of a user.

In order to achieve the technical purpose, the utility model is realized by adopting the following technical scheme:

in one aspect, the present utility model provides a heating liner assembly comprising:

the inner container is provided with a water inlet pipe and a water outlet pipe;

an electric heating component, which is arranged in the inner container;

the water inlet pipe comprises a first pipe body and a second pipe body, a plurality of first water outlet holes are formed in the first pipe body, a water outlet portion is formed in the second pipe body, a second water outlet hole is formed in the water outlet portion along the length direction, the first pipe body is inserted into the second pipe body, the second pipe body shields the first water outlet holes, the water outlet portion is close to the inner wall of the inner container, and the water outlet direction of the first water outlet holes is different from the water outlet direction of the second water outlet holes.

In an embodiment of the present application, the second water outlet hole is configured to discharge water toward the inner wall of the liner, the first water outlet hole is configured to discharge water toward the inner wall of the second pipe, one end of the first pipe is fixed on the liner, and the other end of the first pipe and the second pipe are located in the liner.

In an embodiment of the present application, the water inlet pipe further comprises a buffer water net, and the buffer water net covers the second water outlet hole.

In an embodiment of the present application, the first pipe body and the second pipe body are eccentrically disposed, and the first pipe body is far away from the second water outlet hole.

In an embodiment of the present application, the free end of the first pipe body and the free end of the second pipe body are of a closed structure, and a plug is further disposed between the second pipe body and the first pipe body.

In this application embodiment, first body is including installation pipeline section, slope pipeline section and straight tube section, the installation pipeline section the slope pipeline section with the straight tube section connects gradually, be provided with on the straight tube section first apopore, the second body cover is in on the straight tube section.

In an embodiment of the application, the installation pipe section and the electric heating component are arranged at the same end part of the inner container, the electric heating component comprises a first electric heating pipe and a second electric heating pipe, the first electric heating pipe is close to one end part of the inner container, and the second pipe body and the second electric heating pipe are close to the circumferential wall of the same side of the inner container.

In an embodiment of the present application, the heating inner container assembly includes two inner containers, wherein one of the inner containers is provided with a water outlet pipe connected with the other water inlet pipe provided on the inner container through a connecting water pipe.

The utility model also provides an electric water heater, which comprises a shell and the heating inner container assembly, wherein the heating inner container assembly is arranged in the shell.

In an embodiment of the present application, the electric heating device further comprises a controller configured to control the on/off of the electric heating component according to the installation posture of the electric water heater.

According to the heating inner container assembly and the electric water heater provided by the utility model, the water inlet pipe adopts the sleeve type structure, the first pipe body is inserted into the inner container, the second pipe body is sleeved outside the end part of the first pipe body, which is positioned in the inner container, in the use process, the water flow speed entering from the first pipe body is higher, so that the water flow speed output from the first water outlet hole is higher, the water flow output from the first water outlet hole enters the second pipe body by jet flow and impacts the pipe wall of the second pipe body, the water flow emitted from the first water outlet hole is buffered through the second pipe body to slow down the water flow speed, finally, the water flow flows out from the second water outlet hole at a slow flow speed, the cold and hot layering effect affecting the water storage in the inner container caused by the cold water entering into the inner container is reduced, the water inlet impact force of the water inlet pipe is slowed down, the hot water output rate is improved, and the use experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of a heating liner assembly according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of the water inlet pipe in FIG. 1;

FIG. 3 is a cross-sectional view of the inlet tube of FIG. 1;

FIG. 4 is an enlarged partial schematic view of the area A in FIG. 3;

FIG. 5 is an exploded view of the inlet tube of FIG. 1;

fig. 6 is a cross-sectional view of a first embodiment of an electric water heater of the utility model;

FIG. 7 is a schematic view of the heating liner assembly of FIG. 6 in a recumbent installed condition;

FIG. 8 is a schematic view of the heating liner assembly of FIG. 6 in an erect installed condition;

fig. 9 is a cross-sectional view of a second embodiment of an electric water heater of the utility model;

fig. 10 is a schematic circuit diagram of a second embodiment of the electric water heater of the utility model.

Reference numerals illustrate:

a first liner 100;

the first electric heating pipe 110, the second electric heating pipe 120 and the first flange 130;

a second liner 200;

the first electric heating pipe II 210, the second electric heating pipe II 220 and the second flange 230;

the water inlet pipe 300, the first pipe body 310, the first water outlet 311, the second pipe body 320, the second water outlet 321, the buffer water net 330, the plug 340 and the sealing sleeve 350;

a water outlet pipe 400;

a connecting water pipe 500;

a first temperature limiter 610; a second temperature limiter 620;

a first thermostat 710; a second thermostat 720;

a first gear switch 810; a second gear switch 820;

liner 1000, electric heating element 2000, first electric heating tube 2001, and second electric heating tube 2002.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The electric water heater adopts electric energy as a main energy material, and the high-temperature heat generated after the electric energy is electrified directly heats water stored in the electric water heater so as to achieve the purpose of preparing hot water.

The electric water heater generally comprises a water tank, an electric heating component, an electric control board and the like, wherein a water storage cavity is formed in the water tank to store water to be heated, the electric heating component is inserted into the water storage cavity formed by the water tank, and the electric control board is used for controlling the electric heating component to be powered on and powered off so as to heat the water in the water tank to a set temperature.

For a water tank of an electric water heater, the water tank generally comprises a shell and an inner container, and an insulation layer is formed between the shell and the inner container. Wherein, the shell is generally made of plastic materials so as to meet the design requirements of beautiful and diversified shapes; the inner container can be a metal container body or a plastic container body according to the requirement.

In addition, the heat preservation that forms between shell and the inner bag, the heat preservation material that commonly uses has: asbestos, sponge, foam, polyurethane foam, etc., and in order to obtain a good heat-insulating effect, in the conventional technology, a heat-insulating layer is usually formed by adopting a foaming mode.

For the liner adopting the metal liner body, the inside of the liner is easy to corrode due to the influence of water quality, and therefore, the water tank is also provided with a magnesium rod which is inserted into a water storage cavity in the water tank.

Since magnesium is the lowest potential metal in the electrochemical sequence, it is physiologically non-toxic. Therefore, the magnesium rod protective liner is very ideal to be used for manufacturing the magnesium rod protective liner. The size of the magnesium rod is directly related to the time of protecting the liner and the protecting effect, and the larger the magnesium rod is, the better the protecting effect is and the longer the protecting time is.

The water tank is also provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is used for conveying cold water into a water storage cavity formed in the water tank, and hot water in the water storage cavity is output from the water outlet pipe.

For the electric heating component, electric heating modes such as electric heating wires, magnetic energy or silicon tube heating can be adopted to heat water stored in the water storage cavity.

For the electric control board, the electric control board is used for receiving detection signals sent by related sensors (such as a water temperature sensor and a flow sensor) and controlling the electric heating component to be powered on and powered off.

When the electric water heater works, the electric heating component is controlled by the electric control board to be electrified and heated, and when the water temperature of the water in the water tank reaches a set value, the electric heating component is controlled by the electric control board to be powered off.

An embodiment, referring to fig. 1 to 5, the present utility model provides a heating liner assembly, comprising:

a liner 1000, on which a water inlet pipe 300 and a water outlet pipe 400 are provided;

an electric heating part 2000 provided in the inner container;

the water inlet pipe comprises a first pipe body 310 and a second pipe body 320, a plurality of first water outlet holes 311 are formed in the first pipe body 310, a second water outlet hole 321 is formed in the second pipe body 320 along the length direction of the water outlet portion, the first pipe body 310 is inserted into the second pipe body 320, the second pipe body 320 shields the first water outlet holes 311, the water outlet portion is close to the inner wall of the liner, the water outlet direction of the first water outlet holes 311 is different from the water outlet direction of the second water outlet holes 321, one end portion of the first pipe body 310 is fixed on the liner, and the other end portion of the first pipe body 310 and the second pipe body 320 are located in the liner.

Specifically, for the water inlet pipe arranged on the liner, the water inlet pipe adopts a sleeve structure, the water inlet pipe is positioned at the position in the liner, the second pipe body 320 of the water inlet pipe is sleeved on the free end of the first pipe body 310, and the first water outlet 311 on the first pipe body 310 is shielded by the second pipe body 320.

Thus, in the actual use process, the water supplied from the external water source flows into the inner container through the first pipe body 310, the water flowing through the first pipe body 310 is ejected from the first water outlet 311 into the second pipe body 320, and the water ejected from the first water outlet 311 impacts the inner pipe wall of the second pipe body 320, so that the water flow can be buffered through the second pipe body 320.

Because the water outlet direction of the first water outlet hole 311 is different from the water outlet direction of the second water outlet hole 321, the water flow outputted from the first water outlet hole 311 is buffered by the wall of the second pipe body 320 and then outputted from the second water outlet hole 321, so as to effectively slow down the water flow rate of the second water outlet hole 321.

After the inlet water is output from the second water outlet 321, the inlet water is gathered around the circumferential wall of the inner container, so that the influence of the inlet water on the layering of cold and hot water in the inner container is reduced, and the hot water output rate is improved.

In some embodiments of the present application, the second water outlet 321 is configured to discharge water toward the inner wall facing the inner container, the first water outlet 311 is configured to discharge water toward the inner wall of the second pipe 320, one end of the first pipe 310 is fixed on the inner container, and the other end of the first pipe 310 and the second pipe 320 are located in the inner container.

Specifically, for the first water outlet holes 311, they may be distributed on the wall of the first pipe body 310 along the length direction, and multiple rows of first water outlet holes 311 may be arranged in the circumferential direction of the first pipe body 310 as required, so as to improve the water outlet efficiency and reduce the water outlet flow rate.

And the water flow output from the second water outlet 321 flows to the inner wall of the inner container facing the second water outlet, so that the cold water is concentrated in a specific area and enters the inner container slowly.

In some embodiments, to further reduce the flow rate of the water, the water inlet pipe further includes a buffer water net 330, and the buffer water net 330 covers the second water outlet 321.

Specifically, the second water outlet 321 is further shielded by the buffer water net 330 by providing the buffer water net 330 outside the second pipe 320. The water flow outputted from the second water outlet 321 is further blocked and dispersed by the buffer water net 330, which is more beneficial to slow down the flow rate of the water flow.

In a certain embodiment, in order to reduce the flow rate of the water to the maximum extent without increasing the overall pipe diameter of the water inlet pipe, the first pipe body 310 and the second pipe body 320 are eccentrically arranged, and the first pipe body 310 is disposed away from the second water outlet 321.

Specifically, the portion of the first tube body 310 inserted into the second tube body 320 is biased to one side, such as: the outer wall of the first pipe body 310 is abutted against the inner wall of the second pipe body 320 and is far away from the second water outlet 321. In this way, the interval between the first pipe body 310 and the second pipe body 320 is larger, so that the water flow output by the first water outlet hole 311 can be buffered and decelerated better. In addition, a plurality of first water outlet holes 311 may be respectively disposed at two sides of the first pipe body 310, and water flows emitted from the first water outlet holes 311 at two sides of the first pipe body 310 back to the second water outlet holes 321 of the second pipe body 320 are guided by the pipe wall of the second pipe body 320 to flow in a direction toward the second water outlet holes 321 of the second pipe body 320, and finally the water flows emitted from the first water outlet holes 311 at two sides back to the second water outlet holes 321 are impacted and flow from the second water outlet holes 321. After the water flows ejected from the first water outlet holes 311 on two sides back to each other, the flow speed can be greatly reduced, so as to further reduce the influence of the water inlet on the cold and hot water layers in the liner.

In one embodiment, the free end of the first pipe 310 and the free end of the second pipe 320 are in a closed structure, and a plug 340 is further disposed between the second pipe 320 and the first pipe 310.

Specifically, in order to form a relatively closed water cavity between the first pipe body 310 and the second pipe body 320, the free end of the first pipe body 310 and the free end of the second pipe body 320 adopt a closed structure, and the other end of the second pipe body 320 is plugged by a plug 340.

In other embodiments, the first pipe body 310 includes a mounting pipe section (not marked), an inclined pipe section (not marked) and a straight pipe section (not marked), where the mounting pipe section, the inclined pipe section and the straight pipe section are sequentially connected, and the straight pipe section is provided with a first water outlet 311, and the second pipe body 320 is sleeved on the straight pipe section.

Specifically, the first pipe body 310 is integrally in a bent structure, and in the case of the horizontal arrangement of the liner, water flows are submerged along the pipe wall through two bends, so that the water outlet is located at the lowest part of the liner.

In order to meet the requirement of sealing and installing the first pipe body 310 and the water outlet pipe with the liner, a sealing sleeve 350 may be disposed on the first pipe body 310 and the water outlet pipe, and the sealing sleeve 350 may seal the connection portion formed between the first pipe body 310 and the water outlet pipe and the liner.

In a second embodiment, as shown in fig. 6-8, an embodiment of the present utility model provides an electric water heater, including:

a housing forming an installation space;

the two inner containers 1000, the end sockets of the inner containers 1000 are provided with flanges;

a water inlet pipe 300, wherein the water inlet pipe 300 extends into one of the inner containers 1000;

a water outlet pipe 400 extending into the other liner 1000;

a connecting water pipe 500 installed between the inner containers 1000;

an electric heating part 2000, the electric heating part 2000 including a first electric heating pipe 2001 and a second electric heating pipe 2002;

wherein each inner container 1000 is provided with an electric heating part 2000, the electric heating part 2000 is arranged on the flange, and the first electric heating pipe 2001 and the second electric heating pipe 2002 extend into the inner container 1000; the first electric heating tube 2001 is arranged along the axial direction of the inner container 1000 and is close to the flange, and the second electric heating tube 2002 is attached to the circumferential wall of the inner container 1000;

in addition, two liners 1000 are connected together and located in the housing, and the inlet pipe and the outlet pipe extend to the outside of the housing.

Specifically, for each liner 1000, an independent electric heating component is configured to heat water in the liner, and each liner has a columnar structure as a whole, and the columnar structure can be circular or elliptical. When the liner is installed and used in the user's home, the liner can be vertically installed or can be horizontally installed according to the installation requirement of the user's home.

After the user installs the electric heating device in a horizontal installation mode at home, as shown in fig. 7, the two inner containers 1000 are in a horizontal state as a whole, and in this installation state, the first electric heating tube 2001 and the second electric heating tube 2002 are in a state of being arranged horizontally as a whole, and the area of the circumferential wall of the inner container 1000 at the lowest part is the lowest water storage position of the corresponding inner container 1000. The second electric heating pipe 2002 is close to the circumferential wall of the liner 1000 and is in the lowest water storage position area, so that the bottom of the liner 1000 can be heated through the second electric heating pipe, and water in the liner 1000 can be effectively heated, so that the requirement of horizontal installation is met.

Similarly, after the installation in the user's home in the upright installation manner, as shown in fig. 8, the two inner containers 1000 are in the upright state as a whole, and in this installation state, the first electric heating tube 2001 and the second electric heating tube 2002 are in the upright state as a whole, and the end of the inner container 1000 where the flange is arranged is the lowest water storage position of the corresponding inner container 1000. The first electric heating pipe 2001 is close to the flange arrangement of inner bag 1000 bottom, and then can follow the bottom of inner bag 1000 through first electric heating pipe and heat, and then realize the water storage in the effectual heating inner bag 1000 to satisfy the requirement of erectting the installation.

The inlet of the water outlet pipe and the inlet of the water connection pipe are required to be arranged at a higher water storage position in the liner 1000, so as to meet the requirement of maximizing the hot water output rate at the top of the liner 1000.

For this purpose, the inlet of the outlet pipe is then arranged remote from the flange of the inner container 1000 and, in the radial direction of the inner container 1000, also remote from the second electric heating tube 2002 in the corresponding inner container 1000. Thus, no matter the liner 1000 is installed horizontally and vertically, the inlet of the water outlet pipe can be positioned at a higher water storage position in the liner 1000 so as to effectively output hot water at the top of the liner 1000.

Likewise, the inlet of the connecting water pipe is also arranged away from the flange of the inner container 1000 and also away from the second electric heating tube 2002 in the corresponding inner container 1000 in the radial direction of the inner container 1000.

In some embodiments of the present application, the outlet of the water inlet pipe is located inside the inner container 1000 and is close to the circumferential wall of the same side of the inner container 1000 as the corresponding second electric heating pipe 2002.

Specifically, in order to meet the design of maximizing the hot water output rate of the liner 1000, under the condition that water entering the liner 1000 needs to meet the two installation conditions of horizontal and vertical, water newly entering the liner 1000 enters from the lowest water storage position close to the liner 1000. For this reason, by arranging the outlet of the water inlet pipe close to the flange of the inner container 1000 and also close to the circumferential wall of the same side of the inner container 1000 where the second electric heating pipe 2002 is arranged, it is possible to ensure that the water inputted into the inner container 1000 from the water inlet pipe is delivered to the vicinity of the lowest water storage position of the inner container 1000, whether vertically or horizontally mounted.

Similarly, for the outlet of the connection pipe, the outlet of the connection pipe is located inside the inner container 1000 to which the water outlet pipe is mounted and is located near the same side circumferential wall of the inner container 1000 as the corresponding second electric heating pipe 2002.

In particular, the outlet of the connecting water pipe is arranged close to the flange of the inner container 1000 and also needs to be close to the circumferential wall of the same side of the inner container 1000 where the second electric heating tube 2002 is arranged.

In another embodiment, the second electric heating tube 2002 extends along the axis of the liner 1000 in order to improve heating efficiency and uniformity.

Specifically, by designing the second electric heating pipe 2002 to extend along the axial direction of the liner 1000, in order to achieve that in the case of horizontal installation, by arranging the second electric heating pipe 2002 longer in the circumferential wall of the liner 1000, it is achieved to improve the heating efficiency and to uniformly heat the water at the bottom of the liner 1000.

In another embodiment, in order to achieve efficient heating of the water at the bottom of the liner 1000 in case of an upright installation, the first electric heating tube 2001 is circuitously arranged at one side of the flange.

In order to meet the requirement of efficient heating of water in the inner container in the transverse and vertical installation postures, the electric water heater further comprises a controller, and the controller is configured to control the on and off of the electric heating component according to the installation postures of the electric water heater. The specific entity of the controller may be a processor integrated on an electric control board in a conventional electric water heater, which is not limited and described herein.

As shown in fig. 9 to 10, the two liners are divided into a first liner 100 and a second liner 200; the electric heating parts in the first inner container 100 include a first electric heating pipe 110 and a second electric heating pipe 120; the electric heating parts in the second liner 200 include a first electric heating pipe two 210 and a second electric heating pipe two 220.

Specifically, the first electric heating tube 110 and the second electric heating tube 210 are identical in structure, and the second electric heating tube 120 and the second electric heating tube 220 are identical in structure, so the first electric heating tube 110 and the second electric heating tube 120 in the first inner container 100 are described below as an example.

The first electric heating pipe 110 is a symmetrically arranged U-shaped heating pipe; the first electric heating tube 110 is positioned at the water inlet end of the first liner 100; the fixed end of the second electric heating tube 120 is the same as the fixed end of the first electric heating tube 110. The second electric heating tube 120 is generally divided into three parts, a first part is a fixing part arranged side by side with the first electric heating tube 110, a second part is a bending part extending toward the sidewall of the first liner 100, and a third part is an extension part extending along the axial direction of the first liner 100 and adjacent to the sidewall of the first liner 100.

Furthermore, during use, cold water is concentrated at one end of the first inner container 100 or the second inner container 200 during vertical installation, so that only the first electric heating pipe 110 in the first inner container 100 and the second electric heating pipe 210 in the second inner container 200 can be controlled to be opened for heating, and the whole inner container water can be heated according to the principle of low hot water density; during horizontal installation, cold water is concentrated at one side wall of the first inner container 100 or the second inner container 200, so that only the first electric heating pipe 120 in the first inner container 100 and the second electric heating pipe 220 in the second inner container 200 can be controlled to be opened for heating; the hot water in the whole inner container can be ensured to be heated uniformly, and a user can enjoy more hot water after the heating is finished.

The controller also comprises a gear switch for controlling the first electric heating pipe and the second electric heating pipe in the same inner container, and the gear switch comprises four gears: the first electric heating pipe and the second electric heating pipe are simultaneously disconnected, only the first electric heating pipe is connected, only the second electric heating pipe is connected, and the first electric heating pipe and the second electric heating pipe are simultaneously connected.

Further, the controller also comprises a temperature controller connected in series with the gear switch; the other end of the temperature controller is connected with the temperature limiter in series.

Further, the gear switch includes a first gear switch 810 and a second gear switch 820; specifically, the first gear switch 810 is provided with four gears: the first electric heating pipe 110 is only connected in the first gear, the second electric heating pipe 120 is only connected in the second gear, the first electric heating pipe 110 is simultaneously connected with the second electric heating pipe 120 in the third gear, and the first electric heating pipe 110 and the second electric heating pipe 120 are simultaneously disconnected in the fourth gear.

Likewise, the second gear switch 820 is also provided with four gears: the first electric heating pipe II 210 is only connected, the second electric heating pipe II 220 is only connected, the first electric heating pipe II 210 and the second electric heating pipe II 220 are simultaneously connected, and the fourth electric heating pipe II 220 and the first electric heating pipe II 210 and the second electric heating pipe II 220 are simultaneously disconnected.

The thermostat includes a first thermostat 710 and a second thermostat 720.

Further, the first electric heating tube 2001 one 110 and the second electric heating tube 2002 one 120 are respectively connected with a first gear switch 810, the first gear switch 810 and the first temperature controller 710 are connected in series, and the first electric heating tube one 110, the second electric heating tube one 120, the first gear switch 810 and the first temperature controller 710 form a first inner container heating group; the first electric heating tube 2001 two 210 and the second electric heating tube 2002 two 220 are respectively connected with a second gear switch 820, the second gear switch 820 and the second temperature controller 720 are connected in series, and the first electric heating tube two 210, the second electric heating tube two 220, the second gear switch 820 and the second temperature controller 720 form a second inner container heating group.

Further, the electric heating component in the first liner 100 and the electric heating component in the second liner 200 are arranged in parallel and connected with the temperature limiter; the temperature limiter includes a first temperature limiter 610 and a second temperature limiter 620 connected in parallel.

Specifically, the first temperature limiter 610 collects the temperature of the first liner 100, the second temperature limiter 620 collects the temperature of the second liner 200, and when the temperature in any liner reaches the warning value, the first temperature limiter 610 or the second temperature limiter 620 is disconnected, so that each heating component pauses heating.

The control method of the electric water heater comprises the step of controlling the first electric heating pipe and/or the second electric heating pipe in the corresponding inner container to be electrified according to the installation posture of the electric water heater.

The method comprises the following steps: according to the target water consumption and the installation mode of the electric water heater, the first electric heating pipe and/or the second electric heating pipe in the corresponding inner container are controlled to be electrified and run, and the method specifically comprises the following steps:

s1, the controller collects water consumption set by a user;

s2, controlling the start and stop of the first electric heating pipe 2001 and the second electric heating pipe 2002 by the controller according to the target water consumption and the installation mode of the liner in the step S1;

s3, the controller collects real-time heating temperatures in the inner containers, and when the real-time heating temperatures exceed the target heating temperatures, the controller controls the corresponding temperature limiters to be disconnected.

The step S3 specifically includes: the first temperature limiter 610 and the second temperature limiter 620 collect real-time heating temperatures in the first liner 100 and the second liner 200, respectively, and transmit the real-time heating temperatures to the controller, and when the real-time heating temperature in any liner reaches a target heating temperature, i.e., an alarm value, the first temperature limiter 610 or the second temperature limiter 620 is disconnected, so that each heating component pauses heating.

In some embodiments, the first electric heating tube in the liner with the water inlet tube is a first heating tube, the second electric heating tube is a second heating tube, the first electric heating tube in the liner with the water outlet tube is a third heating tube, and the second electric heating tube is a fourth heating tube; the electric water heater is divided into vertical installation and horizontal installation, and the target water consumption comprises L1 volume, L2 volume, L3 volume and L4 volume, wherein L1< L2< L3< L4.

Specifically, according to the different installation modes of the liner, under different water consumption conditions, in order to meet the requirement of reducing energy consumption, different electric heating components are required to be controlled to be powered on and powered off.

Under the condition of vertical installation at the electric water heater;

when the target water consumption is L1 volume, the fourth heating pipe is electrified for heating;

when the target water consumption is L2 volume, the third heating pipe is electrified and heated, and the fourth heating pipe is selectively electrified and heated;

when the target water consumption is L3 volume, the second heating pipe and the third heating pipe are simultaneously electrified and heated, and the fourth heating pipe is selectively electrified and heated;

and when the target water consumption is L4 volume, the first heating pipe and the third heating pipe are simultaneously electrified and heated, and the second heating pipe and/or the fourth heating pipe are/is selectively electrified and heated.

Under the condition of horizontal installation at the electric water heater;

when the target water consumption is L1 volume, the third heating pipe is electrified and heated;

when the target water consumption is L2 volume, the fourth heating pipe is electrified and heated, and the third heating pipe is selectively electrified and heated;

when the target water consumption is L3 volume, the first heating pipe and the fourth heating pipe are simultaneously electrified and heated, and the third heating pipe is selectively electrified and heated;

and when the target water consumption is L4 volume, the second heating pipe and the fourth heating pipe are simultaneously electrified and heated, and the first heating pipe and/or the third heating pipe are/is selectively electrified and heated.

Specifically, by way of example, L1 is 1/4 rated volume of the electric water heater, L2 is 1/2 rated volume of the electric water heater, L3 is 3/4 rated volume of the electric water heater, and L4 is the total rated volume of the electric water heater.

Further, according to the gear settings of the first gear switch 810 and the second gear switch 820, the water heater in this embodiment may have the following usage scenarios:

for a vertically mounted water heater, reference may be made to fig. 1 or 2:

scene one, satisfying a small amount of water for users:

about 1/4 rated volume of hot water can be heated, the water for washing dishes by a user can be satisfied, the control mode is that the first temperature controller 710 is disconnected, the second temperature controller 720 is connected, the second gear switch 820 is switched to a gear II, and only the second electric heating pipe two 220 is connected.

Scene two, satisfy user proper amount water:

about 1/2 rated volume of hot water can be heated, so that the water for washing dishes or bathing by a single person can be satisfied, the control mode is that the first temperature controller 710 is disconnected, the second temperature controller 720 is connected, the second gear switch 820 is switched to the I gear, and the water in the inner container at the left side in the figure 1 can be heated only by connecting the first electric heating pipe II 210; or the second gear switch 820 is switched to the III gear, and the first electric heating pipe II 210 and the second electric heating pipe II 220 are connected at the same time, so that the water in the left inner container can be quickly heated.

Scene three, satisfy user's a large amount of water:

about 3/4 rated volume of hot water can be heated to satisfy the user's dish washing and single bathing water, the control mode is to switch on the first temperature controller 710 and simultaneously switch on the second temperature controller 720, the second gear switch 820 is switched to the I gear or the III gear, and the first gear switch 810 is switched to the II gear.

Scene four, satisfy a large amount of water of user:

the double-liner hot water can be heated, a large amount of water for a plurality of users can be met, the control mode is that the first temperature controller 710 is connected and the second temperature controller 720 is connected, the second gear switch 820 is switched to the I gear or the III gear, and meanwhile, the first gear switch 810 is switched to the I gear or the III gear.

For a horizontal mounted water heater, reference may be made to FIG. 7:

scene one, satisfying a small amount of water for users:

about 1/4 rated volume of hot water can be heated, water for washing dishes by a user is satisfied, the control mode is that the first temperature controller 710 is disconnected, the second temperature controller 720 is connected, and the second gear switch 820 is switched to the I gear, so that the water in the inner container at the upper side in the figure 3 can be heated only by connecting the first electric heating pipe II 210.

Scene two, satisfy user proper amount water:

about 1/2 rated volume of hot water can be heated to meet the requirement of dish washing or single bathing water for a user, and the control mode is that the first temperature controller 710 is disconnected, the second temperature controller 720 is connected, the second gear switch 820 is switched to a gear II, and only the second electric heating pipe II 220 is connected; or the second gear switch 820 is switched to the III gear, and the first electric heating pipe II 210 and the second electric heating pipe II 220 are connected at the same time, so that the water in the left inner container can be quickly heated.

Scene three, satisfy user's a large amount of water:

about 3/4 rated volume of hot water can be heated to satisfy the user's dish washing and single bathing water, the control mode is to switch on the first temperature controller 710 and simultaneously switch on the second temperature controller 720, the second gear switch 820 is switched to the II gear or the III gear, and the first gear switch 810 is switched to the I gear.

Scene four, satisfy a large amount of water of user:

the double-liner hot water can be heated, so that a large amount of water for a plurality of users can be met, the control mode is that the first temperature controller 710 is connected and the second temperature controller 720 is connected, the second gear switch 820 is switched to the II gear or the III gear, and the first gear switch 810 is switched to the II gear or the III gear.

The embodiment of the utility model also provides a control method of the electric water heater, which is used for intelligently controlling the heating start time and the heating quantity of the electric water heater according to the water consumption conditions of different users, and particularly aiming at people with regular life parts, the control method can greatly improve the user experience and also can save the electric energy to the greatest extent.

The control method specifically comprises the following steps: learning mode and intelligent mode of operation.

In the learning mode, after water in the two inner containers is heated to a set temperature value T in every set N days, when the water temperature in the inner containers is reduced by more than DeltaT per minute, judging the continuous water outlet state of the electric water heater, and recording the water consumption starting time T of the day _n The method comprises the steps of carrying out a first treatment on the surface of the When the water temperature in the inner containers is lower than delta T in each minute, the electric water heater is judged to be in a standby state, and meanwhile, the water heating quantity Q required for heating the water temperature of the inner containers to a set temperature value is calculated according to the temperature difference of the water temperature of the two inner containers _n 。

Specifically, in the actual use process of the electric water heater installed in the user's home, a period of time set by one week, two weeks, one month or the like may be used as the learning period. In each learning period, after the electric water heater is heated to a set temperature value T each time, judging whether a user uses a large amount of water or not by judging the falling speed of the water temperature in the liner, and further judging and recording the water consumption starting time point T of the user _n . And after the water consumption of the user is finished, according to the water temperature drop amount in the liner,calculate the water heating quantity Q of the hot water used by the user _n According to Q _n To control the heating amount of the electric heating member.

Under the intelligent operation module, obtaining the water consumption starting time point t in the previous period _n At the time point t calculated every day, starting the electric heating component to heat the water in the liner until the water temperature rises, wherein the heat generated by the electric heating component is not less than the water heat Q _n The method comprises the steps of carrying out a first treatment on the surface of the Wherein t=t _n -△t。

Specifically, in the use process of the water heater in the period, the water consumption starting time point t obtained according to the previous period _n And the heat quantity Q of water _n To control the automatic operation of the electric water heater. Under the condition of no hot water, the electric heating component can be not electrified to heat or can be in medium-low water temperature heat preservation operation at ordinary times, so that the temperature difference between the water in the inner container and the outside can be reduced, and the energy loss caused by heat conduction is further reduced, so that the energy-saving effect is achieved.

Meanwhile, in order to meet the requirement of users for using hot water normally, the electric water heater is started at a time point t calculated every day, so that the electric heating component is electrified to heat water in the inner container. And the heating quantity of the inner container is controlled to refer to the water consumption quantity Q calculated in the previous period _n Heating is performed as a reference. Therefore, on one hand, after the user returns home, the electric water heater can supply hot water in time so that the user does not need to wait for heating the hot water, and on the other hand, the electric water heater can supply the hot water Q according to the water consumption of the previous period _n The heating capacity of the electric water heater is controlled, so that the use requirement of hot water of a user can be met, and the heat waste caused by excessive heating of hot water can be reduced, thereby effectively reducing the energy consumption.

In some embodiments, under the intelligent operation module, the water consumption starting time point t obtained in the previous period is used _n The minimum value t of (2) _min Calculated time point t, i.e., t=t _min -△t。

Specifically, a plurality of water use start time points t obtained for the previous cycle _n At a minimum value t _min Calculating the time point t for starting heating in the period to ensure that the user can get back to homeHot water is used, heating is not needed, and the use experience of a user is improved.

In another embodiment, under the intelligent operation module, the water heating quantity Q obtained in the previous period is used _n Maximum value Q of (B) _max Controlling the heat generated by the electric heating component.

Specifically, the plurality of water heat amounts Q obtained for the previous cycle _n At a maximum value Q _max The control of the heat generated by the electric heating element ensures that the electric water heater heats enough heat to generate enough hot water for the user.

In some embodiments, to increase the hot water output rate, the intelligent operation module starts the electric heating element in the liner with the water outlet pipe, and if the liner is heated to the highest set temperature, the heat generated by the electric heating element is smaller than the water heat Q _n The electric heating element in the liner provided with the water inlet pipe is restarted.

Specifically, for the electric water heater adopting the two inner containers, in the heating process, the water in the inner container provided with the water outlet pipe is heated first so as to ensure that the inner container has sufficient hot water output, and adverse effects of cold water introduced by the water inlet pipe on the hot water output rate can be reduced to the greatest extent. And after the water temperature of the inner container reaches the highest set temperature, the inner container provided with the water inlet pipe is heated.

In the above embodiments, unless otherwise specified, it is assumed that an electric heating member is provided in each liner.

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

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A heating liner assembly, comprising:

the inner container is provided with a water inlet pipe and a water outlet pipe;

an electric heating component, which is arranged in the inner container;

the water inlet pipe comprises a first pipe body and a second pipe body, a plurality of first water outlet holes are formed in the first pipe body, a water outlet portion is formed in the second pipe body, a second water outlet hole is formed in the water outlet portion in the length direction, the first pipe body is inserted into the second pipe body, the second pipe body shields the first water outlet holes, the water outlet portion is close to the inner wall of the inner container, the water outlet direction of the first water outlet holes is different from the water outlet direction of the second water outlet holes, one end portion of the first pipe body is fixed to the inner container, and the other end portion of the first pipe body and the second pipe body are located in the inner container.

2. The heating liner assembly of claim 1, wherein the second water outlet holes are configured to discharge water toward an inner wall facing the liner, the first water outlet holes are configured to discharge water toward an inner wall of the second pipe, one end of the first pipe is fixed to the liner, and the other end of the first pipe and the second pipe are positioned in the liner.

3. The heating liner assembly of claim 1, wherein the water inlet tube further comprises a buffer water screen covering the second water outlet aperture.

4. The heating liner assembly of claim 1, wherein the first tube is disposed off-center from the second tube, the first tube being disposed away from the second water outlet.

5. The heating liner assembly of claim 4, wherein the free end of the first tube and the free end of the second tube are closed, and a plug is further disposed between the second tube and the first tube.

6. The heating liner assembly of claim 1, wherein the first tube body comprises a mounting tube section, an inclined tube section and a straight tube section, the mounting tube section, the inclined tube section and the straight tube section are sequentially connected, the straight tube section is provided with the first water outlet, and the second tube body is sleeved on the straight tube section.

7. The heating liner assembly of claim 6, wherein the mounting tube segment and the electrical heating component are disposed at a same end of the liner, the electrical heating component comprising a first electrical heating tube disposed proximate an end of the liner and a second electrical heating tube disposed proximate a circumferential wall of a same side of the liner as the second electrical heating tube.

8. The heating liner assembly of any one of claims 1-7, wherein the heating liner assembly comprises two liners, wherein the outlet pipe provided on one liner is connected to the inlet pipe provided on the other liner by a connecting water pipe.

9. An electric water heater comprising a housing, further comprising a heating liner assembly according to any one of claims 1-8, the heating liner assembly disposed in the housing.

10. The electric water heater of claim 9, further comprising a controller configured to control the electrical heating component to be powered on and off in accordance with an installation posture of the electric water heater.

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