WO2022094950A1

WO2022094950A1 - Scale-reducing and self-cleaning electric water heater

Info

Publication number: WO2022094950A1
Application number: PCT/CN2020/127216
Authority: WO
Inventors: 谢柏玲
Original assignee: 南京瑞祥信息技术有限公司
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2022-05-12
Also published as: DE212020000455U1

Abstract

Provided is a scale-reducing and self-cleaning electric water heater, comprising an outer shell (1), an inner container (2), an opening and closing cover element (3), a filtering element (4), a soft water element (5), a cleaning element (6), a heating element (7), a sensor element (8), and a controller (9). The inner container (2) is arranged in the outer shell (1), and the filtering element (4) comprises a filtering cavity (41) arranged at the bottom of the inner container (2). The soft water element (5) comprises a soft water cavity (51) arranged in the inner container (2), and the soft water cavity (51) is communicated with the filtering cavity (41). The cleaning element (6) comprises a water storage cavity (61) arranged in the inner container (2), and the water storage cavity (61) is communicated with the soft water cavity (51). The heating element (7) comprises a heating plate (71) and a hot water outlet (72), the heating plate (71) being arranged in the water storage cavity (61), and the hot water outlet (72) running through the water storage cavity (61), the inner container (2) and the outer shell (1). The sensor element (8) is arranged inside the inner container (2), and the controller (9) is electrically connected to the other elements. The electric water heater enables the filtering and softening of tap water, can self-clean according to scaling conditions, can overcome the problem that the cleaning of electric water heaters is inconvenient, and is convenient, fast and practical.

Description

An electric water heater capable of reducing scale and self-cleaning

technical field

The present application relates to the field of smart home, in particular to an electric water heater capable of reducing scale and self-cleaning.

Background technique

An electric water heater is a commonly used electrical appliance in daily life. It is a device that increases the temperature of cold water and turns it into hot water within a certain period of time. Generally, the electric water heater is directly connected to the tap water, open the valve of the electric water heater, the tap water can enter the water storage tank of the electric water heater, and the electric water heater will heat the tap water at this time.

In practical applications, tap water contains many corrosive impurities. When the water temperature exceeds 40°C, these impurities will adhere to the inner tank and cause corrosion to the inner tank to form scale. Therefore, a magnesium rod is generally installed in the electric water heater, and the magnesium rod chemically reacts with the impurities to prevent the liner from being corroded.

However, over time, the magnesium rods are depleted and used up due to chemical reactions, and the descaling capacity is limited. In addition, in the process of chemical reaction between magnesium rods and impurities, magnesium ions are precipitated to form magnesium hydroxide, which hardens the water quality.

SUMMARY OF THE INVENTION

The present application provides an electric water heater capable of reducing scale and self-cleaning, so as to solve the problems that traditional water heaters are prone to scale formation and difficult to clean.

The present application provides an electric water heater capable of reducing scale and self-cleaning, comprising: a casing, wherein the casing is a cylindrical structure;

an inner liner, the inner liner is arranged in the outer shell;

an opening and closing cover assembly, the opening and closing cover assemblies are respectively disposed at both ends of the casing;

a filter assembly, the filter assembly includes a filter cavity, and the filter cavity is arranged at the bottom of the inner tank;

a soft water component, the soft water component includes a soft water cavity, and the soft water cavity is arranged in the inner tank and communicates with the filter cavity;

a cleaning component, the cleaning component includes a water storage cavity, the water storage cavity is arranged in the inner tank, and communicates with the soft water cavity;

a heating assembly, the heating assembly includes a heating plate and a hot water outlet, the heating plate is disposed in the water storage cavity, and the hot water outlet penetrates the water storage cavity, the inner tank and the outer shell;

a sensor assembly, the sensor assembly is arranged inside the inner tank;

The controller is electrically connected with the opening and closing cover assembly, the soft water assembly, the cleaning assembly, the heating assembly and the sensor assembly.

As can be seen from the above technical solutions, the present application provides an electric water heater capable of reducing scale and self-cleaning, comprising: a shell, an inner tank, an opening and closing cover assembly, a filter assembly, a soft water assembly, a cleaning assembly, a heating assembly, a sensor assembly and a controller . The outer shell is a cylindrical structure, and the inner tank is arranged in the outer shell. The filter assembly includes a filter cavity, and the filter cavity is arranged at the bottom of the inner tank. The soft water assembly includes a soft water cavity, and the soft water cavity is arranged in the inner tank and communicated with the filter cavity. The cleaning assembly includes a water storage chamber, and the water storage chamber is arranged in the inner tank and communicates with the soft water chamber. The heating assembly includes a heating plate and a hot water outlet, the heating plate is arranged in the water storage cavity, and the hot water outlet penetrates the water storage cavity, the inner tank and the outer shell. The sensor assembly is arranged inside the inner tank, and the controller is electrically connected with the opening and closing cover assembly, the soft water assembly, the cleaning assembly, the heating assembly and the sensor assembly. The electric water heater that can reduce scale and self-cleaning provided by the present application can filter and soften tap water. The filtered and softened water contains less calcium, magnesium ions and nitrogen-containing compounds, and it is not easy to produce scale when heated at high temperature, which solves the problem. Traditional electric water heaters cannot heat water to an excessively high temperature and are prone to scaling problems. At the same time, soft water has many benefits to users' daily life. The electric water heater provided by the present application can reduce scale and self-clean, and can also perform self-cleaning according to the scaling situation, which solves the problem of inconvenient cleaning of the electric water heater, is convenient, quick, and has strong practicability.

Description of drawings

In order to illustrate the technical solutions of the present application more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without any creative effort, Additional drawings can be obtained from these drawings.

1 is an overall schematic diagram of an electric water heater capable of reducing scale and self-cleaning according to the present application;

2 is a schematic structural diagram of an opening and closing cover assembly of the present application;

3 is a schematic structural diagram of the water softening assembly of the present application;

4 is a schematic structural diagram of the cleaning assembly of the present application;

Fig. 5 is another structural schematic diagram of the cleaning assembly of the present application;

FIG. 6 is a schematic structural diagram of the water storage cavity of the present application.

Detailed ways

Embodiments will be described in detail below, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples are not intended to represent all implementations consistent with this application. are merely exemplary of systems and methods consistent with some aspects of the present application as recited in the claims.

Referring to FIG. 1, it is an overall schematic diagram of an electric water heater capable of reducing scale and self-cleaning according to the present application. As can be seen from FIG. 1, the electric water heater provided by the present application for reducing scale and self-cleaning includes the following components: an outer casing 1, an inner tank 2, Opening and closing cover assembly 3 , filter assembly 4 , soft water assembly 5 , cleaning assembly 6 , heating assembly 7 , sensor assembly 8 and controller 9 . Among them, the shell 1 is used to support other components, the inner tank 2 is used for heat preservation, the opening and closing cover assembly 3 is used to open and close the electric water heater, the filter assembly 4 is used to filter water, the water softening assembly 5 is used to soften water, and the cleaning assembly 6 For cleaning scale, the heating component 7 is used for heating water, the sensor component 8 is used for sensing, the controller 9 is electrically connected with the soft water component 5, the cleaning component 6, the heating component 7 and the sensor component 8, for controlling the soft water component 5 , cleaning component 6 , heating component 7 and sensor component 8 .

The outer shell 1 may be a cylindrical structure, and the inner container 2 is arranged in the outer shell 1 . Referring to FIG. 2 , it is a schematic structural diagram of the opening and closing cover assembly of the present application. As can be seen from FIG. 2 , the opening and closing cover assemblies 3 are respectively disposed at both ends of the housing 1 , and the opening and closing cover assemblies 3 may include a cover body 31 , a first electromagnetic ring 32 , a second electromagnetic ring 33 and a buckle 34 , the first electromagnetic ring 32 is fixed on the cover body 31, the second electromagnetic ring 33 is fixed on the inner tank 2, and the buckles 34 are symmetrically arranged on the cover body 31 and the outer shell 1 junction. The cover body 31 can be a cylinder, the first electromagnetic ring 32 and the second electromagnetic ring 33 are electrically connected to the controller 9 , and the first electromagnetic ring 32 and the second electromagnetic ring can be realized through the controller 9 . 33 attract or repel each other, when the first electromagnetic ring 32 and the second electromagnetic ring 33 are in an attractive state, the cover 31 can be fixed on the outer shell 1 and the inner container 2, when When the first electromagnetic ring 32 and the second electromagnetic ring 33 are in a repulsive state, the cover 31 is separated from the outer shell 1 and the inner container 2, and the buckle 34 further fixes the The function of the cover body 31 . In practical applications, a hinge or other structure may also be provided where the cover body 31 is connected to the housing 1 , which may be designed as required, which is not specifically limited in this application.

Continuing to refer to FIG. 1 , the filter assembly 4 may include a filter cavity 41 , a filtered water inlet 42 , a filter rod 43 and a filtered water outlet 44 , the filter cavity 41 is provided at the bottom of the inner tank 2 , and the filter rod 43 is provided Inside the filter cavity 41 , one end extends into the filter cavity 41 , the other end penetrates the inner container 2 and is screwed to the outer shell 1 , and the filtered water inlet 42 penetrates the filter cavity 41 , the In the inner tank 2 and the outer shell 1, the filtered water outlet 44 communicates with the filter cavity 41, and the filtered water outlet 44 is the outlet of the filtered water. In practical applications, the filtered water inlet 42 can be directly connected to tap water, and the filter rod 43 can include filter material, such as a stainless steel filter screen. When the filter rod 43 needs to be replaced, it can be spirally removed from The casing 1 is unscrewed. In general, when the tap water is directly connected to the traditional electric water heater, if the electric water heater has stored water but has not been used for a long time, nitrogen-containing compounds such as moss can easily grow in the inner tank of the electric water heater, which not only causes damage to the inner tank, but also has the problem of difficulty in cleaning. After passing through the filter assembly 4, such a situation can be avoided, and the practicability is strong.

Referring to FIG. 3 , it is a schematic structural diagram of the water softening assembly of the present application. As can be seen from FIG. 3 , the soft water assembly 5 includes a soft water chamber 51 , a resin tank 52 , a salt tank 53 , a sewage pipe 54 , a water inlet 55 and a water outlet 56 , and the resin tank 52 and the salt tank 53 are arranged in the In the soft water chamber 51, the resin tank 52 is communicated with the salt tank 53, the salt tank 53 contains soft water salt, the water inlet 55, the water outlet 56 and the sewage pipe 54 are respectively connected with the The resin tank 52 is in communication, and the water inlet 55 is in communication with the filtered water outlet 44, that is, the filtered water enters the resin tank 52 through the filtered water outlet 44 and the water inlet 55, and the sewage pipe 54 It communicates with the soft water cavity 51 , the inner tank 2 and the outer shell 1 . The filtered water can be controlled by the controller 9 to enter the resin tank 52, the calcium and magnesium ions in the water react with the resin, and the calcium and magnesium ions can be replaced, and the water at this time can be called soft water. The controller 9 can also prevent the water from flowing into the resin tank 52, but first flows through the salt tank 53 and then sucks into the resin tank 52, so that the sodium ions in the water react with the surface of the soft water resin to replace calcium and magnesium ions, and then the water The discharge pipe 54 is discharged out of the electric water heater, so that the resin can be recycled. When the content of the soft water salt in the salt tank 53 is low, the electric water heater can be opened through the opening and closing cover assembly 3 to complete the supplementation of the soft water salt. In practical applications, since the content of calcium and magnesium ions in soft water is very small, it is not easy to form scale when heated.

The water outlet 56 may include a cold water branch port 561 and a water branch port 562 to be heated. The port 562 communicates with the water storage chamber 61 . The cold water branch port 561 can be used as an outlet for softened water, so that the softened water can directly flow out of the electric water heater as cold water, and the water to be heated branch port 562 can pass the softened water into the heating water structure.

Referring to FIG. 4 , it is a schematic structural diagram of the cleaning assembly of the present application. Referring to FIG. 5 , it is another structural schematic diagram of the cleaning assembly of the present application. 4 and 5 , the cleaning assembly 6 may include a water storage chamber 61, a guide rail 62, an electromagnetic cleaning ring 63, a same-sex power ring 64, an opposite-sex power ring 65 and a fixing kit 66, and the water storage chamber 61 is a cylinder The same-sex power ring 64 and the opposite-sex power ring 65 are respectively fixed on both ends of the water storage cavity 61, and the guide rails 62 are two, which are respectively fixed in the water storage cavity 61 horizontally, and are connected to the two ends of the water storage cavity 61 respectively. The same-sex power ring 64 and the opposite-sex power ring 65 are vertical, and the electromagnetic cleaning ring 63 is in the shape of a circular ring, and is sleeved on the guide rail 62 through the fixing kit 66 . The electromagnetic cleaning ring 63 may be provided with a cleaning brush, and the electromagnetic cleaning ring 63 is in contact with the water storage chamber 61 . The same-sex power ring 64 and the opposite-sex power ring 65 may also be electromagnetic rings, which are powered on. After that, the electromagnetic polarity of the electromagnetic cleaning ring 63 is the same as that of the same-sex power ring 64, and opposite to the opposite-sex power ring 65. The electromagnetic cleaning ring 63 can reciprocate on the guide rail 62 through the fixing kit 66. Due to the electromagnetic The cleaning ring 63 is in contact with the water storage cavity 61 . During the movement, the electromagnetic cleaning ring 63 can clean the scale adhering to the inner wall of the water storage cavity 61 to achieve the purpose of cleaning the water storage cavity 61 .

The heating assembly 7 may include a heating plate 71 and a hot water outlet 72, the heating plate 71 is disposed in the water storage cavity 61, and the water storage cavity 61 stores the water to be heated into the water branch port 562. The heating plate 71 can heat water, the hot water outlet 72 runs through the water storage cavity 61 , the inner tank 2 and the outer shell 1 , and the hot water outlet 72 can flow the heated water out of the electric water heater.

Referring to FIG. 6 , it is a schematic structural diagram of the water storage cavity of the present application. As can be seen from FIG. 6 , the water storage cavity 61 may include a thermal insulation layer 611 and a heat conduction layer 612, and the thermal insulation layer 611 is arranged between the thermal conduction layer 612 and the inner tank 2. When the heating plate 71 heats water, The heat conduction layer 612 can make the heating more uniform, the water temperature rises faster, and the thermal insulation layer 611 can play the role of heat preservation to avoid heat loss.

The cleaning assembly 6 may further include a cleaning pump 67 , the cleaning pump 67 is disposed in the water storage chamber 61 away from the soft water chamber 51 , and the cleaning pump 67 is connected to the hot water outlet 72 . In practical applications, the cleaning pump 67 can discharge water with scale through the hot water outlet 72 to complete the cleaning process.

The cleaning assembly 6 may further include an adsorption chamber 68 , an adsorption material is arranged in the adsorption chamber 68 , and the adsorption chamber 68 communicates with the cleaning pump 67 . In practical applications, during the drainage process of the cleaning pump 67 , the adsorption chamber 68 can adsorb scale, so as to avoid the situation that the hot water outlet 72 is blocked by the scale. At the same time, through the opening and closing cover assembly 3, the electric water heater can be opened to replace the adsorption material in the adsorption chamber 68, which is convenient and practical.

The sensor assembly 8 is disposed inside the inner container 2 , and further, the sensor assembly 8 includes a plurality of sensors 81 , and the plurality of the sensors 81 are respectively disposed on the water storage cavity 61 . The sensor 81 may be one or several combinations of a temperature sensor, an image sensor, a distance sensor and a thickness sensor, which are not limited here.

In practical application, the tap water enters the filter chamber 41 through the filtered water inlet 42 for filtration, the filtered water flows into the soft water chamber 51 through the filtered water outlet 44, and the softened water can flow out of the electric water heater through the cold water branch 561, or it can pass through the to-be-heated water heater. The water branch port 562 flows into the water storage chamber 61, and the heating assembly 7 can heat the water. When the softened water is heated, even if the temperature is high, scale is not easily formed. The heated water can flow out of the electric water heater through the hot water outlet 72 . The controller 9 controls the sensor assembly 8 to monitor the scaling situation on the inner wall of the water storage chamber 61, and feeds back the monitoring results to the controller 9, and the controller 9 can clean the assembly 6 according to the information fed back by the sensor assembly 8. control. For example, the sensor assembly 8 can acquire an image of the inner wall of the water storage chamber 61, and the controller 9 compares the image with a pre-stored image library, analyzes and obtains the scale formation on the inner wall of the water storage chamber 61, and determines whether scale cleaning needs to be performed. , control the cleaning component 6 to work, the electromagnetic cleaning ring 63 moves in the water storage chamber 61 to remove scale, and the cleaning pump 67 starts to discharge the water with scale out of the electric water heater to realize the self-cleaning of the electric water heater.

It should be understood that the scale-reducing and self-cleaning electric water heater provided by this application also includes a pressure relief valve, a cold and hot water valve connected to the cold water branch port 561 and the hot water outlet 72, etc., which are not specifically limited in this application.

As can be seen from the above technical solutions, the electric water heater that can reduce scale and self-clean provided by this application includes: an outer shell 1, an inner tank 2, an opening and closing cover assembly 3, a filter assembly 4, a soft water assembly 5, a cleaning assembly 6, and a heating assembly 7 , sensor assembly 8 and controller 9 . The outer shell 1 is a cylindrical structure, and the inner container 2 is arranged in the outer shell 1 . The filter assembly 4 includes a filter cavity 41 , and the filter cavity 41 is disposed at the bottom of the inner container 2 . The soft water assembly 5 includes a soft water cavity 51 , and the soft water cavity 51 is arranged in the inner tank 2 and communicates with the filter cavity 41 . The cleaning assembly 6 includes a water storage chamber 61 , and the water storage chamber 61 is arranged in the inner tank 2 and communicates with the soft water chamber 51 . The heating assembly 7 includes a heating plate 71 and a hot water outlet 72, the heating plate 71 is disposed in the water storage chamber 61, and the hot water outlet 72 penetrates the water storage chamber 61, the inner tank 2 and the housing 1. The sensor assembly 8 is arranged inside the inner tank 2, the controller 9, the opening and closing cover assembly 3, the soft water assembly 5, the cleaning assembly 6, the heating assembly 7 and the sensor assembly 8 Electrical connections. The electric water heater that can reduce scale and self-cleaning provided by this application can filter and soften tap water. The filtered and softened water contains less calcium, magnesium ions and nitrogen-containing compounds, and it is not easy to produce scale when heated at high temperature, which solves the problem. Traditional electric water heaters cannot heat water to an excessively high temperature and are prone to scaling problems. At the same time, soft water has many benefits to users' daily life. The electric water heater provided by the present application can reduce scale and self-clean, and can also perform self-cleaning according to the scaling situation, which solves the problem of inconvenient cleaning of the electric water heater, is convenient, quick, and has strong practicability.

Similar parts between the embodiments provided in the present application may be referred to each other. The specific embodiments provided above are just a few examples under the general concept of the present application, and do not constitute a limitation on the protection scope of the present application. For those skilled in the art, any other implementations expanded according to the solution of the present application without creative work fall within the protection scope of the present application.

Claims

An electric water heater capable of reducing scale and self-cleaning, characterized by comprising:

a casing (1), the casing (1) is a cylindrical structure;

an inner liner (2), the inner liner (2) is arranged in the outer shell (1);

an opening and closing cover assembly (3), the opening and closing cover assembly (3) is respectively disposed at both ends of the casing (1);

a filter assembly (4), the filter assembly (4) includes a filter cavity (41), and the filter cavity (41) is arranged at the bottom of the inner bladder (2);

a soft water assembly (5), the soft water assembly (5) comprises a soft water cavity (51), and the soft water cavity (51) is arranged in the inner tank (2) and communicates with the filter cavity (41);

a cleaning assembly (6), the cleaning assembly (6) includes a water storage chamber (61), the water storage chamber (61) is arranged in the inner bladder (2), and communicates with the soft water chamber (51);

A heating assembly (7), the heating assembly (7) comprises a heating plate (71) and a hot water outlet (72), the heating plate (71) is arranged in the water storage cavity (61), the hot water The outlet (72) penetrates through the water storage cavity (61), the inner bladder (2) and the outer shell (1);

a sensor assembly (8), wherein the sensor assembly (8) is arranged inside the inner container (2);

A controller (9), the controller (9) and the opening and closing cover assembly (3), the softening water assembly (5), the cleaning assembly (6), the heating assembly (7) and the sensor assembly (8) Electrical connection.
The electric water heater capable of reducing scale and self-cleaning according to claim 1, wherein the filter assembly (4) further comprises a filtered water inlet (42), a filter rod (43) and a filtered water outlet (44), The filter rod (43) is arranged inside the filter cavity (41), one end extends into the filter cavity (41), and the other end penetrates the inner bladder (2) and is screwed with the outer shell (1) ; The filtered water inlet (42) runs through the filter cavity (41), the inner bladder (2) and the outer shell (1), and the filtered water outlet (44) communicates with the filter cavity (41) .
The electric water heater capable of reducing scale and self-cleaning according to claim 2, wherein the soft water assembly (5) further comprises a resin tank (52), a salt tank (53), a sewage pipe (54), a water inlet (55) and a water outlet (56), the resin tank (52) and the salt tank (53) are arranged in the soft water cavity (51), the resin tank (52) and the salt tank (53) ), the water inlet (55), the water outlet (56) and the sewage pipe (54) are respectively communicated with the resin tank (52), and the water inlet (55) is connected with the filter The water outlet (44) communicates with each other, and the sewage pipe (54) runs through the soft water chamber (51), the inner bladder (2) and the outer shell (1).
The electric water heater capable of reducing scale and self-cleaning according to claim 3, wherein the water outlet (56) comprises a branch port for cold water (561) and a branch port for water to be heated (562). (561) communicates with the soft water chamber (51), the inner liner (2) and the outer shell (1), and the water branch port (562) to be heated communicates with the water storage chamber (61).
The electric water heater capable of reducing scale and self-cleaning according to claim 1, wherein the cleaning component (6) further comprises a guide rail (62), an electromagnetic cleaning ring (63), a power ring (64) of the same sex, a power ring of the opposite sex A power ring (65) and a fixing kit (66), the same-sex power ring (64) and the opposite-sex power ring (65) are respectively fixed at both ends of the water storage cavity (61), and the guide rail (62) is The two are fixed horizontally in the water storage cavity (61) respectively, and are perpendicular to the same-sex power ring (64) and the opposite-sex power ring (65), and the electromagnetic cleaning ring (63) is in the shape of a circular ring, The guide rail (62) is sleeved on the guide rail (62) through the fixing kit (66).
The electric water heater capable of reducing scale and self-cleaning according to claim 1, wherein the cleaning assembly (6) further comprises a cleaning pump (67), and the cleaning pump (67) is arranged in the water storage chamber (61) is far away from the soft water chamber (51), and the cleaning pump (67) is connected to the hot water outlet (72).
The electric water heater capable of reducing scale and self-cleaning according to claim 6, wherein the cleaning component (6) further comprises an adsorption chamber (68), wherein an adsorption material is arranged in the adsorption chamber (68), so that the The adsorption chamber (68) communicates with the cleaning pump (67).
The electric water heater capable of reducing scale and self-cleaning according to claim 1, wherein the water storage cavity (61) comprises a thermal insulation layer (611) and a heat conduction layer (612), and the thermal insulation layer (611) is provided with between the thermally conductive layer (612) and the inner container (2).
The electric water heater capable of reducing scale and self-cleaning according to claim 1, wherein the opening and closing cover assembly (3) comprises a cover body (31), a first electromagnetic ring (32), a second electromagnetic ring ( 33) and the buckle (34), the first electromagnetic ring (32) is fixed on the cover body (31), and the second electromagnetic ring (33) is fixed on the inner tank (2), so The buckles (34) are symmetrically arranged at the joints of the cover body (31) and the housing (1).
The electric water heater capable of reducing scale and self-cleaning according to claim 1, characterized in that the sensor assembly (8) comprises a plurality of sensors (81), and a plurality of the sensors (81) are respectively arranged on the storage battery. on the water cavity (61).