Electric water heater capable of adjusting actual water storage capacity of inner container

Abstract

The utility model discloses an electric water heater capable of adjusting the actual water storage capacity of an inner container. The electric water heater comprises the inner container, a heating pipe assembly, a water inlet pipe, a first hot water pipe, a second hot water pipe and an electronic three-way valve. The inner container is provided with a water storage cavity, a flange plate is arranged at the first end of the inner container, and an end cover is arranged at the second end of the inner container. The heating pipe assembly is installed at the second end of the inner container and comprises at least one heating pipe. The water inlet pipe is mounted at the bottom of the liner through a fastener. One end of the first hot water pipe is connected with the electronic three-way valve, and the other end of the first hot water pipe is inserted into the water storage cavity of the inner container. One end of the second hot water pipe is connected with the electronic three-way valve, and the other end of the second hot water pipe is inserted into the water storage cavity of the inner container. According to the electric water heater, at least one heating pipe is arranged on the inner container, the second hot water pipe is additionally arranged, the function of controlling the actual water storage amount according to the user mode is achieved, and the effects of electricity saving and quick heating are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric water heater technical field especially relates to a kind of electric water heater of adjustable inner container actual water storage capacity. BACKGROUND

[0002] Please refer to the attached drawings of the specification Figure 1 The existing conventional electric water heater, its core mainly includes: inner container assembly 100 and the electric heating tube 101, the water inlet pipe 102, the water outlet pipe 103, the electric wall 104 and magnesium rod 105 installed on the inner container assembly 100.The working principle of conventional electric water heater is: after the electric heating tube 101 is powered on, the water stored in the inner container assembly 100 of specific capacity is heated, and heating stops after heating to the predetermined temperature, the water inlet switch of water inlet pipe 102 is always open, tap water enters the inner container assembly 100 from water inlet pipe 102 and is heated, since the specific gravity of cold water is greater than that of hot water, so the heated hot water is in the upper layer of cold water, the water inlet of water outlet pipe 103 is at the top position of the inner container assembly 100 storing hot water, and the high-position hot water is output from the water outlet pipe 1033, and then the constant-temperature hot water is output through the external connected mixing valve, so as to meet the use demand of user.

[0003] In actual use scenario, conventional electric water heater mainly has the following defects:

[0004] 1, since there is only one water outlet pipe, and the water outlet of water outlet pipe is usually installed to the top position close to the inner cavity of inner container, so the water inlet amount of each use of water needs to reach the rated water storage value of electric water heater, the water storage capacity is fixed and cannot be changed, the water amount of each heating is much, which leads to high power consumption.For example, when the rated water storage capacity is 50L, 50L water needs to be heated to set temperature for two people to use for bathing;However, when only one person uses for bathing, the actual water amount needs only 25-30L, so that the heating time length of one person use and the heating time length of two people use are same, and the power consumption is same.When one person uses for bathing and finishes, the remaining amount of hot water in inner container is too much, which leads to water and power waste.

[0005] 2, since there is only one electric heating tube, the waiting heating time for bathing is long, and the water storage cannot be heated quickly;

[0006] 3, the output amount of hot water for bathing is insufficient, and cannot meet the simultaneous use of multiple people;For example, when the rated water storage capacity is 50L, heating to set temperature can only be used for two people, and cannot meet the multiple use demand of three to four people. INVENTION CONTENTS

[0007] In view of the deficiencies of the prior art, the utility model provides an electric water heater with adjustable inner container actual water storage capacity to overcome the deficiencies in the prior art.

[0008] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0009] An electric water heater with adjustable actual water storage capacity in the inner tank, comprising an inner tank, a heating tube assembly, a water inlet pipe, a first hot water pipe, a second hot water pipe, an electronic three-way valve, a magnesium rod and a user control panel;

[0010] The inner tank is provided with a water storage cavity, the first end of the inner tank is provided with a flange plate, and the second end of the inner tank is provided with an end cover;

[0011] The heating tube assembly is installed on the end cover of the second end of the inner tank through fasteners, the heating tube assembly comprises at least one heating tube, and a temperature probe is arranged on the heating tube; one end of the heating tube is fixed on the end cover of the inner tank, and the other end is inserted into the water storage cavity of the inner tank;

[0012] The water inlet pipe is compressed by an electric wall and is installed at the bottom of the inner tank through fasteners;

[0013] The first hot water pipe is installed at the bottom of the inner tank through fasteners, one end of the first hot water pipe is connected to the electronic three-way valve, the other end is inserted into the water storage cavity of the inner tank, and the inner end of the first hot water pipe is at the low position of the water storage cavity of the inner tank;

[0014] The second hot water pipe is fixed on the flange plate at the first end of the inner tank, one end of the second hot water pipe is connected to the electronic three-way valve, the other end is inserted into the water storage cavity of the inner tank through the flange plate, and the inner end of the second hot water pipe is at the high position of the water storage cavity of the inner tank;

[0015] The magnesium rod is installed at the bottom of the inner tank through fasteners;

[0016] The user control panel is arranged on the outer shell of the inner tank, and a plurality of control buttons and a plurality of screen display units are arranged on the user control panel.

[0017] Further, the heating tube assembly comprises two heating tubes; the two heating tubes are installed on the end cover of the inner tank through fasteners, respectively, and the first heating tube is installed at the low position of the end cover, and the second heating tube is installed at the high position of the end cover.

[0018] Further, the part of the water inlet pipe and the second hot water pipe extending into the inner tank does not contact the heating tube.

[0019] Preferably, the user control panel is electrically connected with the electronic three-way valve, the heating tube assembly, the control buttons and the screen display units.

[0020] Preferably, an arrow mark is engraved on the heating tube, and the arrow mark of the heating tube is installed towards the direction closest to the wall of the inner tank.

[0021] Preferably, the flange plate is compressed by a pressing plate and locked on the inner tank through fasteners.

[0022] Preferably, the second hot water pipe is directly connected or connected through a hose to the electronic three-way valve at one end.

[0023] Preferably, the water inlet pipe is provided with a water blocking cap.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] 1) The electric water heater with adjustable actual water storage capacity of the inner container sets at least one heating pipe on the inner container and increases the second hot water pipe, and controls the final water outlet channel of the bathing hot water through the electronic three-way valve, that is, the first hot water pipe or the second hot water pipe, because the water outlet positions of the first heating pipe and the second heating pipe in the inner container are different, one is at the low position of the water storage cavity and the other is at the high position of the water storage cavity, so that the function of controlling the actual water storage capacity of the inner container according to the user selection mode is realized, the heating time is reduced, the electricity is saved, the hot water can be quickly heated in different use modes, the heating time of the shower hot water is short, and the user waiting time is short.

[0026] 2) The electric water heater with adjustable actual water storage capacity of the inner container can select several different function modes such as'single washing', 'two-person washing' or'multi-person washing' according to the actual needs of the user, and is more in line with market demand.

[0027] 3) The electric water heater with adjustable actual water storage capacity of the inner container can realize the alternate switching heating of the two heating pipes, can increase the hot water output, and the heating speed is also faster.

[0028] In order to more clearly understand the utility model, the preferred embodiments of the utility model will be described below in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structure schematic view of a conventional electric water heater in the background art;

[0030] Figure 2 , Figure 3 It is a whole structure schematic view of the embodiment 1 of the utility model;

[0031] Figure 4 It is a whole structure schematic view of the embodiment 2 of the utility model.

[0032] BRIEF DESCRIPTION OF DRAWINGS:

[0033] 1-inner container, 2-heating pipe assembly, 21-heating pipe, 3-water inlet pipe, 4-first hot water pipe, 5-second hot water pipe, 6-electronic three-way valve, 7-hose, 8-magnesium rod; 11-flange plate, 12-pressing plate;

[0034] In the background art, 100-inner container assembly, 101-electric heating pipe, 102-water inlet pipe, 103-water outlet pipe, 104-anti-electric wall, 105-magnesium rod. DETAILED DESCRIPTION

[0035] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0036] In addition, the terms "first", "second", etc. are only used for the purpose of description, mainly for distinguishing different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and therefore cannot be understood as indicating or implying the relative importance.

[0037] In addition, it should be noted that, unless otherwise specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements; for ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] Example 1

[0039] Please refer to Figures 2-3 The utility model provides a kind of electric water heater with adjustable actual water storage capacity of inner container, including inner container 1, heating tube assembly 2, water inlet pipe 3, first hot water pipe 4, second hot water pipe 5 and electronic tee valve 6.

[0040] The inner container 1 is provided with a water storage cavity, and a flange plate 11 is arranged at the first end of the inner container 1. The flange plate 11 is locked on the inner container 1 by a pressing plate 12 and fasteners. An end cover is arranged at the second end of the inner container 1. The flange plate 11, the pressing plate 12 and the end cover seal the inner container 1, forming a sealed water storage cavity.

[0041] The heating tube assembly 2 is installed on the end cover at the second end of the inner container 1 by fasteners. The heating tube assembly 2 includes at least one heating tube 21. One end of the heating tube 21 is fixed to the end cover of the inner container 1, and the other end is inserted into the water storage cavity of the inner container 1. A temperature probe is arranged on the heating tube 21.

[0042] As preferred, in the embodiment, the heating tube 21 is marked with an arrow, and when installed, the arrow of the heating tube 21 is directed towards the direction closest to the inner container wall, so that the heating tube 21 is closer to the inner container wall, thereby more effectively increasing the speed of heating the stored water in the storage cavity and more significantly improving the rapid heating effect.

[0043] The water inlet pipe 3 is installed at the bottom of the inner container 1 by fasteners after being pressed by the anti-electricity wall, and the part of the water inlet pipe 3 extending into the inner container 1 does not contact the heating tube 21;

[0044] The first hot water pipe 4 is installed at the bottom of the inner container 1 by fasteners, one end of the first hot water pipe 4 is connected to the electronic three-way valve 6, the other end is inserted into the storage cavity of the inner container 1, and the inner end of the first hot water pipe 4 is at the low position of the storage cavity of the inner container 1; when initially installed, the length of the first hot water pipe 4 extending into the inner container 1 is adjustable (the length of the first hot water pipe 4 extending into the inner container 1 is adjusted according to the rated volume of the inner container 1, for example, for the inner container 1 with a rated storage capacity of 50L, the length of the first hot water pipe 4 extending into the inner container 1 is just suitable for storing 30L of water);

[0045] The second hot water pipe 5 is fixed to the flange 11 at the first end of the inner container 1, one end of the second hot water pipe 5 is directly connected or connected through the hose 7 to the electronic three-way valve 6, the other end is inserted into the storage cavity of the inner container 1 through the flange 11, and the inner end of the second hot water pipe 5 is at the high position of the storage cavity of the inner container 1; when initially installed, the length of the second hot water pipe 5 extending into the inner container 1 is adjustable, and the part of the second hot water pipe 5 extending into the inner container 1 does not contact the heating tube 21;

[0046] Further, the electric water heater capable of adjusting the actual storage capacity of the inner container also comprises a replaceable magnesium rod 8 installed at the bottom of the inner container 1 by fasteners; the magnesium rod 8 protects the inner container 1 and the heating element of the electric water heater by corrosion, because the chemical activity of magnesium is higher than that of iron, it will react with impurities and minerals in water first, thereby reducing the corrosion of the inner container 1 and the heating element and prolonging the service life of the equipment; at the same time, the magnesium rod 8 can also reduce the accumulation of scale on the inner container 1 and the heating element, and maintain the efficient operation of the electric water heater.

[0047] Further, the electric water heater capable of adjusting the actual storage capacity of the inner container also comprises a user control panel (not shown in the figure) arranged on the outer shell of the inner container 1, the user control panel is provided with a plurality of control buttons and a plurality of screen display units, and the user control panel is electrically connected with the electronic three-way valve 6, the heating tube assembly 2, the control buttons and the screen display units; the user can set the use mode through the control buttons, such as selecting the mode of “single washing”, “two-person washing” or “multi-person washing”; the screen display unit is used to display the current use state of the electric water heater.

[0048] As preferred, in the embodiment, the heating tube assembly 2 comprises two heating tubes 21; the two heating tubes 21 are respectively installed on the end cover of the inner container 1 by the fasteners, and the first heating tube 21 is installed at the low position of the end cover, so that the first heating tube 21 corresponds to the height of the inner end pipe orifice of the first hot water pipe 4, and the second heating tube 21 is installed at the high position of the end cover, so that the second heating tube 21 corresponds to the height of the inner end pipe orifice of the second hot water pipe 5, thereby further improving the rapid heating effect.

[0049] As preferred, the water inlet pipe 3 is provided with a water blocking cap.

[0050] As preferred, in the embodiment, the fasteners are nuts and screw heads or nuts and bolts.

[0051] The electric water heater of the present application can adjust the actual water storage capacity of the inner container, and the working principle or working process is as follows:

[0052] The electric water heater of the present application can select "single washing", "two people washing" or "multi-person washing" according to the actual needs of the user, and the actual water storage capacity in the water storage cavity of the inner container 1 is also different under different function modes. The heating tube assembly 2 only heats the actual water storage in the inner container 1, thereby reducing the waiting time for heating bath water and saving electricity. Taking the rated capacity of the electric water heater as 50L (the rated capacity is the maximum water storage capacity of the water storage cavity of the inner container 1, and the rated capacity is different from the actual water storage capacity), the following is explained.

[0053] 1. When only one person uses, the "single washing" function mode is selected, the electronic three-way valve 6 opens the valve of the first hot water pipe 4 and closes the valve of the second water outlet. Since the inner end pipe orifice of the first hot water pipe 4 is at the low position of the water storage cavity and is adapted to about 30L of water storage capacity, the actual water storage capacity of the inner container 1 under this mode is only about 30L, and the heating tube assembly 2 starts heating (if two heating tubes 21 are installed, the first heating tube 21 at the low position starts heating first), and stops heating when the temperature probe detects that the water temperature in the container reaches the set temperature of 75℃. When the user uses, the hot water output from the first hot water pipe 4 and the appropriate water temperature output through the externally connected thermostatic valve can meet the bathing needs of one person. When one person uses it, there is no waste of excess hot water in the inner container 1, and since the actual water output is small, the heating speed is fast, the waiting time is short, and electricity can be saved.

[0054] 2、When the "two people washing mode" is selected, the electronic three-way valve 6 opens the valve of the second hot water pipe 5 and closes the valve of the first water outlet. Since the height of the inner end pipe of the second hot water pipe 5 is at the high position of the water storage cavity and is adapted to about 50L of water storage, the actual water storage capacity of the inner tank 1 in this mode is about 50L. The heating pipe assembly 2 starts heating (if two heating pipes 21 are installed, the second heating pipe 21 at the high position starts heating first). When the temperature probe detects that the water temperature in the tank reaches the set temperature of 80℃, heating is stopped. When the user uses it, hot water is output from the second hot water pipe 5, and then the appropriate water temperature is output through the externally connected thermostatic valve. The output hot water can meet the bathing needs of two people.

[0055] 3、When the "multi-person washing mode" is selected, the electronic three-way valve 6 opens the valve of the second hot water pipe 5 and closes the valve of the first water outlet. Since the height of the inner end pipe of the second hot water pipe 5 is at the high position of the water storage cavity and is adapted to about 50L of water storage, the actual water storage capacity of the inner tank 1 in this mode is about 50L. The heating pipe assembly 2 starts heating (if two heating pipes 21 are installed, the second heating pipe 21 at the high position starts heating first). When the temperature probe detects that the water temperature in the tank reaches the set temperature of 80℃, heating is stopped. The user can take a bath.

[0056] During use, when the temperature probe detects that the water temperature in the tank is lower than the set temperature of 5℃, the heating pipe assembly 2 starts heating again (if two heating pipes 21 are installed, the second heating pipe 21 at the high position starts heating). This realizes rapid increase of hot water output, so that the output hot water can meet the bathing needs of 3-4 people, solving the problem of long waiting time when multiple people take a bath.

[0057] When the temperature probe detects that the water temperature in the tank is lower than 38℃, at this time the inner tank 1 has no hot water for the user to use, and the heating pipe assembly 2 starts heating again, repeating the above heating logic.

[0058] Example 2

[0059] Please refer to Figure 4 The difference between Example 1 and Example 2 is that the inner tank of Example 1 is horizontal, while the inner tank of Example 2 is vertical.

[0060] Compared with the prior art, the electric water heater with adjustable actual water storage capacity of the inner tank of the present case sets at least one heating pipe on the inner tank and increases the second hot water pipe, and controls whether the final water outlet channel of the bathing hot water is the first hot water pipe or the second hot water pipe through the electronic three-way valve. Since the water outlet positions of the first heating pipe and the second heating pipe in the inner tank are different, one is at the low position of the water storage cavity and the other is at the high position of the water storage cavity, the function of controlling the actual water storage capacity of the inner tank according to the user's selection mode is realized, the effects of reducing heating time, saving electricity, rapid heating in different use modes, short heating time of shower hot water, and short waiting time of the user are achieved.

[0061] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model.

Claims

1. An electric water heater with adjustable inner tank water storage capacity, characterized in that: Includes inner tank (1), heating element assembly (2), water inlet pipe (3), first hot water pipe (4), second hot water pipe (5), electronic three-way valve (6), magnesium rod (9) and user control panel; The inner liner (1) is provided with a water storage cavity, a flange (11) is provided at the first end of the inner liner (1), and an end cap is provided at the second end of the inner liner (1). The heating tube assembly (2) is installed on the end cap of the second end of the inner liner (1) by fasteners. The heating tube assembly (2) includes at least one heating tube (21), and a temperature probe is provided on the heating tube (21). One end of the heating tube (21) is fixed on the end cap of the inner liner (1), and the other end is inserted into the water storage cavity of the inner liner (1). The water inlet pipe (3) is installed at the bottom of the inner tank (1) after being pressed by the anti-electric wall; The first hot water pipe (4) is installed at the bottom of the inner tank (1) by fasteners. One end of the first hot water pipe (4) is connected to the electronic three-way valve (6), and the other end is inserted into the water storage cavity of the inner tank (1). The inner end of the first hot water pipe (4) is located at the low position of the water storage cavity of the inner tank (1). The second hot water pipe (5) is fixed to the flange (11) at the first end of the inner tank (1). One end of the second hot water pipe (5) is connected to the electronic three-way valve (6), and the other end passes through the flange (11) and is inserted into the water storage cavity of the inner tank (1). The inner end of the second hot water pipe (5) is located at the high position of the water storage cavity of the inner tank (1). The magnesium rod (9) is installed at the bottom of the inner liner (1) by fasteners; The user control panel is located on the outer shell of the inner liner (1), and the user control panel is equipped with several control buttons and several display units.

2. An electric water heater with adjustable inner tank water storage capacity according to claim 1, characterized in that: The heating tube assembly (2) includes two heating tubes (21); the two heating tubes (21) are respectively installed on the end cap of the inner liner (1) by fasteners, and the first heating tube (21) is installed at the lower position of the end cap, and the second heating tube (21) is installed at the higher position of the end cap.

3. An electric water heater with adjustable inner tank water storage capacity according to claim 2, characterized in that: The portions of the water inlet pipe (3) and the second hot water pipe (5) that extend into the inner tank (1) do not contact the heating element (21).

4. An electric water heater with adjustable inner tank water storage capacity according to claim 1, characterized in that: The user control panel is electrically connected to the electronic three-way valve (6), the heating element assembly (2), the control buttons, and the display unit.

5. An electric water heater with adjustable inner tank water storage capacity according to claim 1, characterized in that: The heating element (21) is marked with an arrow. When installing, the arrow on the heating element (21) should be facing the direction closest to the inner wall.

6. An electric water heater with adjustable inner tank water storage capacity according to claim 1, characterized in that: The flange (11) is pressed by the pressure plate (12) and then locked onto the inner liner (1) by fasteners.

7. An electric water heater with adjustable inner tank water storage capacity according to claim 1, characterized in that: One end of the second hot water pipe (5) is directly connected to or connected to the electronic three-way valve (6) through a hose (7).

8. An electric water heater with adjustable inner tank water storage capacity according to claim 1, characterized in that: The water inlet pipe (3) is equipped with a water-blocking cap.

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