CN219775992U - Constant temperature electric water heater capable of continuously supplying heat - Google Patents

Abstract

The utility model provides a constant-temperature electric water heater capable of continuously supplying heat, which comprises a protective shell, wherein the protective shell comprises a shell, an inner container is fixedly arranged on the inner side of the shell, a pipe distribution gap is reserved between the shell and the inner container, and a water inlet tee joint, an inner water inlet pipe, a two-position tee electromagnetic valve and a connecting pipe are arranged in the pipe distribution gap; the water inlet tee joint, the two-position tee electromagnetic valve and the connecting pipe are positioned at the top of the liner, the upper port of the water inlet tee joint is embedded on the shell, the upper port of the water inlet tee joint is used for being connected with the outer water inlet pipe, and one water outlet at the lower part of the water inlet tee joint is connected with the upper end of the inner water inlet pipe. The electric water heater provided by the utility model is responsible for heating cold water in a pipeline in a hot water supply system of the gas water heater in advance, and stores the heated hot water for standby, so that when a faucet uses a large amount of hot water, the electric water heater does not need to continuously heat with high power, and meanwhile, compared with a large-capacity electric water heater, the electric water heater also has the advantages of small occupied space and lower use cost. In addition, the electric water heater provided by the utility model does not need to modify the original water supply system when being installed, and has good operability.

Description

Constant temperature electric water heater capable of continuously supplying heat

Technical Field

The utility model relates to the field of building water supply equipment, in particular to a constant-temperature electric water heater capable of continuously supplying heat.

Background

The common domestic hot water generally adopts a gas water heater, and is in a room temperature state when in a horizontal state due to the influence of the distance between a hot water use place and the gas water heater, so that the water temperature in a front pipeline is lower when the domestic hot water is used, the hot water cannot be used, and the cold water in the pipeline is always wasted; the water-using end adopts a small electric water heater (kitchen wastes) which cannot meet the requirement of using a large amount of hot water due to capacity limitation; and thirdly, the large-capacity water storage type electric water heater occupies a larger space and has higher energy consumption.

A small electric water heater (kitchen appliance) is a household appliance which is used for solving domestic hot water and meeting the demand of instant heating and is more commonly used at present, a traditional small electric water heater and a constant-temperature electric water heater according to the patent published by the national patent office; the water heater is limited by the capacity of the water heater, and the effects of instant heating and constant-temperature water supply are achieved, but constant-temperature hot water cannot be continuously provided in large capacity, and the capacity of the water heater cannot be infinitely increased.

Disclosure of Invention

In order to solve the problems that the electric water heater matched with the gas water heater in the prior art can not meet the requirement of disposable water consumption in a large amount, and the occupied space is large and the energy consumption is high in use, the utility model provides a constant-temperature electric water heater capable of continuously supplying heat.

The technical scheme of the utility model is as follows: a constant temperature electric water heater capable of continuously supplying heat comprises a protective shell, wherein the inner side of the shell is fixedly provided with an inner container, a pipe distribution gap is reserved between the shell and the inner container, and a water inlet tee joint, an inner water inlet pipe, a two-position tee electromagnetic valve and a connecting pipe are arranged in the pipe distribution gap;

the water inlet tee joint, the two-position tee electromagnetic valve and the connecting pipe are positioned at the top of the liner, the upper port of the water inlet tee joint is embedded on the shell, the upper port of the water inlet tee joint is used for being connected with the outer water inlet pipe, and one water outlet at the lower part of the water inlet tee joint is connected with the upper end of the inner water inlet pipe;

the bottom of the liner is fixedly embedded with a check valve, one end of the check valve is connected with the inner water inlet pipe, and the other end of the check valve is communicated with the cold water cabin;

the upper port of the two-position three-way electromagnetic valve is embedded on the shell and is used for being connected with the water outlet pipe; one port of the lower part of the two-position three-way electromagnetic valve is connected with the other water outlet of the lower part of the water inlet tee joint through a connecting pipe, the other port of the lower part of the two-position three-way electromagnetic valve is connected with the water outlet pipe in the liner, and the other end of the water outlet pipe in the liner is communicated with the top of the liner;

the inside of the inner container is provided with a floating partition plate member capable of moving up and down, the floating partition plate member divides the inner space of the inner container into a cold water cabin and a hot water cabin which are mutually independent, the cold water cabin is positioned below the hot water cabin, and the floating partition plate member comprises a controllable communication mechanism which is used for controlling the communication or closing of the cold water cabin and the hot water cabin;

an electric heating device is arranged in the cold water cabin, and an inductor is arranged on the inner wall of the hot water cabin and used for sensing the vertical distance between the inductor and the floating partition plate component so as to control the on or off of the electric heating device.

Preferably, the floating baffle member comprises a hollow baffle, a hollow cavity is arranged in the hollow baffle, a lower communicating pipe is fixedly embedded in the lower side plate of the hollow baffle, and the lower communicating pipe is used for communicating the cold water cabin and the cavity in the hollow baffle;

an upper communicating pipe is fixedly embedded in the upper side plate of the hollow partition plate and used for communicating the hot water cabin with the cavity in the hollow partition plate, and the upper communicating pipe corresponds to the communicating pipe up and down;

the controllable communication mechanism comprises a sliding plate and a collapsible pushing device, the sliding plate is arranged in a cavity in the hollow partition board in a sliding manner, the thickness of the sliding plate is equal to the vertical width of the inner cavity of the hollow partition board, the collapsible pushing device is arranged at the bottom of the hollow partition board and is communicated with the inner cavity, and the pushing device is used for driving the sliding plate to push out and reset under the conditions of thermal expansion and cold contraction;

the sliding plate is internally provided with a communicating hole which is vertically communicated, and the communicating hole, the upper communicating pipe and the lower communicating pipe can be vertically communicated after the sliding plate is pushed out; when the sliding plate is in the initial state, the communication holes are staggered left and right with the upper communication pipe and the lower communication pipe.

Preferably, the expansion pushing device comprises a liquid storage box which is made of heat conducting materials, low-temperature evaporating liquid is arranged in the liquid storage box, the evaporating temperature of the low-temperature evaporating liquid is within the range of from the temperature to the temperature, and the top of the liquid storage box is communicated with the inner cavity of the hollow partition plate.

Preferably, the liquid storage box is arranged at the middle position of the bottom side of the hollow partition plate, and two sliding plates are arranged in the cavity of the hollow partition plate in a sliding manner and are symmetrical in the left-right radial direction relative to the liquid storage box.

Preferably, the top of the inner cavity of the hollow partition plate is fixedly provided with two first limiting plates which are arranged at left and right intervals, the first limiting plates are positioned right above the liquid storage box, the upper and lower lengths of the first limiting plates are smaller than the upper and lower thicknesses of the sliding plates, and gaps exist between the left and right limiting sliding plates in an initial state.

Preferably, when the sliding plate is in the initial state, one end of the sliding plate facing the first limiting plate is in a suspended state, and one end of the sliding plate facing the first limiting plate is located right above the liquid storage box.

Preferably, the top of the upper communicating pipe is hinged with a cover plate capable of rotating upwards.

Preferably, a second limiting plate is arranged on the inner wall of the cold water cabin and is positioned above the electric heating device, and the second limiting plate is used for limiting the floating initial position of the floating partition plate member.

Preferably, the protective shell further comprises a heat preservation layer filled between the shell and the liner.

The utility model has the advantages that: (1) The electric water heater provided by the utility model is responsible for heating cold water in a pipeline in a hot water supply system of the gas water heater in advance, and stores the heated hot water for standby, so that when a faucet uses a large amount of hot water, the electric water heater does not need to continuously heat with high power, and meanwhile, compared with a large-capacity electric water heater, the electric water heater also has the advantages of small occupied space and lower use cost.

(2) The constant temperature continuous water supply scheme provided by the electric water heater adopts a preheating mode, and the working power is smaller than that of a direct water heater, so that the electric water heater has longer service life.

(3) The electric water heater provided by the utility model does not need to modify the original water supply system when being installed, and has good operability.

Drawings

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

Fig. 1 is a schematic main structure of a constant temperature electric water heater in embodiment 1;

FIG. 2 is a schematic diagram of the constant temperature electric water heater in embodiment 1 when no water is discharged after the constant temperature electric water heater is connected with a gas water heater and a tap;

FIG. 3 is a schematic view of the constant temperature electric water heater of embodiment 1 after being connected with a gas water heater and a faucet;

FIG. 4 is an enlarged view of the structure at A in FIG. 1;

FIG. 5 is an enlarged view of the structure at B in FIG. 1;

in the figure, 1, a protective shell, 101, a shell, 102, a heat preservation layer, 2, an inner container, 201, a cold water cabin, 202, a hot water cabin, 3, an outer water inlet pipe, 4, a water inlet tee joint, 5, an inner water inlet pipe, 6, a check valve, 7, a floating partition plate component, 8, a two-position three-way electromagnetic valve, 801, an inner water outlet pipe, 9, a connecting pipe, 10, an outlet pipe, 11, a gas water heater, 12, a faucet, 13, a hollow partition plate, 1301, a hollow cavity, 1302, a lower communicating pipe, 1303, an upper communicating pipe, 1304, a cover plate, 14, a sliding plate, 1401, a communicating hole, 15, a liquid storage box, 16, low-temperature evaporation liquid, 17, an electric heating device, 18, an inductor, 19, a first limiting plate, 20 and a second limiting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

Example 1: the constant-temperature electric water heater capable of continuously supplying heat is shown in fig. 1, and comprises a protective shell 1, wherein the protective shell 1 comprises a shell 101, an inner container 2 is fixedly arranged on the inner side of the shell 101, a pipe distribution gap is reserved between the protective shell 1 and the inner container 2, and a water inlet tee joint 4, an inner water inlet pipe 5, a two-position tee electromagnetic valve 8 and a connecting pipe 9 are arranged in the pipe distribution gap.

The protecting shell 1 further comprises an insulating layer 102 filled between the shell 101 and the inner container 2, wherein the insulating layer 102 is used for avoiding heat dissipation in the inner container 2, the water inlet tee joint 4, the inner water inlet pipe 5, the two-position three-way electromagnetic valve 8 and the connecting pipe 9 as much as possible.

The water inlet tee joint 4, the two-position tee electromagnetic valve 8 and the connecting pipe 9 are positioned at the top of the liner 2, the upper port of the water inlet tee joint 4 is embedded on the shell 101, the upper port of the water inlet tee joint 4 is used for being connected with the outer water inlet pipe 3, and the other end of the outer water inlet pipe 3 is connected with a hot water outlet of the gas water heater 11.

As shown in fig. 2 and 3, one of the water outlets at the lower part of the water inlet tee 4 is connected with the upper end of the inner water inlet pipe 5, the bottom of the inner container 2 is fixedly embedded with a check valve 6, one end of the check valve 6 is connected with the inner water inlet pipe 5, the other end of the check valve 6 is communicated with the cold water cabin 201, and the check valve 6 in the embodiment adopts a gravity check valve.

The upper port of the two-position three-way electromagnetic valve 8 is embedded on the shell 101, and the upper port of the two-position three-way electromagnetic valve 8 is used for being connected with the water outlet pipe 10, and the other end of the water outlet pipe 10 is connected with the water tap 12.

One port of the lower part of the two-position three-way electromagnetic valve 8 is connected with the other water outlet of the lower part of the water inlet tee joint 4 through a connecting pipe 9, the other port of the lower part of the two-position three-way electromagnetic valve 8 is connected with the liner inner water outlet pipe 801, and the other end of the liner inner water outlet pipe 801 is communicated with the top of the liner 2.

The inside of the liner 2 is provided with a floating baffle member 7 capable of moving up and down, the floating baffle member 7 divides the inner space of the liner 2 into a cold water cabin 201 and a hot water cabin 202 which are mutually independent, the cold water cabin 201 is positioned below the hot water cabin 202, and the floating baffle member 7 comprises a controllable communication mechanism which is used for controlling the communication or closing of the cold water cabin 201 and the hot water cabin 202.

The maximum capacity of the cold water tank 201 is slightly greater than the sum of the capacities of the gas water heater 11 and the outer water inlet pipe 3 so that when the capacity in the cold water tank 201 reaches the maximum (when the floating diaphragm member 7 floats up to the set height), hot water has flowed into the outer water inlet pipe 3 and the inner water inlet pipe 5.

Specifically, as shown in fig. 4 and 5, the floating diaphragm member 7 includes a hollow diaphragm 13, a hollow cavity is provided in the hollow diaphragm 13, a lower communicating pipe 1302 is fixedly embedded in a lower side plate of the hollow diaphragm 13, and the lower communicating pipe 1302 is used for communicating the cold water tank 201 with the cavity in the hollow diaphragm 13;

an upper communicating pipe 1303 is fixedly embedded in the upper side plate of the hollow partition plate 13, and a cover plate 1304 capable of rotating upwards is hinged to the top of the upper communicating pipe 1303. Upper communication pipe 1303 is used to communicate hot water tank 202 with the hollow space in hollow partition 13, and upper communication pipe 1303 vertically corresponds to communication pipe 1302.

The controllable communication mechanism comprises two sliding plates 14 and a collapsible pushing device, wherein the two sliding plates 14 and the collapsible pushing device are arranged at left and right intervals, the sliding plates 14 are slidably arranged in a cavity in the hollow partition plate 13, the thickness of the sliding plates 14 is equal to the vertical width of an inner cavity of the hollow partition plate 13, the collapsible pushing device is arranged at the bottom of the hollow partition plate 13 and is communicated with the inner cavity, and the pushing device is used for driving the sliding plates 14 to push out and reset under the conditions of thermal expansion and cold contraction.

Specifically, as shown in fig. 4, the collapsible pushing device includes a liquid storage box 15, the liquid storage box 15 is arranged at the middle position of the bottom side of the hollow partition 13, two sliding plates 14 are radially symmetrical left and right with respect to the liquid storage box 15, the liquid storage box 15 is made of a heat conducting material, low-temperature evaporating liquid 16 is arranged in the liquid storage box 15, the evaporating temperature of the low-temperature evaporating liquid 16 is 40-80 ℃, and the top of the liquid storage box 15 is communicated with the inner cavity of the hollow partition 13.

In order to facilitate the evaporation of the low-temperature evaporation liquid 16, the sliding plate 14 at the initial position can be pushed more easily in the left-right direction, as shown in fig. 4, in this embodiment, two first limiting plates 19 are fixedly arranged at the top of the inner cavity of the hollow partition plate 13 at intervals, the first limiting plates 19 are located right above the liquid storage box 15, the vertical length of the first limiting plates 19 is smaller than the vertical thickness of the sliding plate 14, and a gap exists between the left limiting plate 14 and the right limiting plate 14 in the initial state.

As shown in fig. 4, a communication hole 1401 penetrating up and down is provided in the slide plate 14, and when the slide plate 14 is pushed out, the communication hole 1401, the upper communication pipe 1303, and the lower communication pipe 1302 can communicate up and down; when the slide plate 14 is in the initial state, the communication holes 1401 are shifted left and right with respect to the upper communication pipe 1303 and the lower communication pipe 1302.

When the sliding plate 14 is in an initial state, one end of the sliding plate 14 facing the first limiting plate 19 is in a suspended state, and one end of the sliding plate 14 facing the first limiting plate 19 is located right above the liquid storage box 15, so that when the sliding plate 14 is retracted and reset, the low-temperature evaporation liquid 16 liquefied on the inner cavity surface can be pushed into the liquid storage box 15 again.

An electric heating device 17 is arranged in the cold water tank 201, and an electric heating coil is adopted as the electric heating device 17 in the embodiment.

The inner wall of the hot water tank 202 is provided with a sensor 18, and the sensor 18 is used for sensing the vertical distance from the floating baffle member 7 so as to control the on or off of the electric heating device 17.

The inner wall of the cold water tank 201 is provided with a second limiting plate 20, the second limiting plate 20 is located above the electric heating device 17, and the second limiting plate 20 is used for limiting the floating initial position of the floating partition member 7 so as to prevent the floating partition member 7 from falling on the electric heating device 17 directly.

Working principle: the device is connected between the gas water heater and the water tap so that the water tap can directly discharge hot water when the water tap starts to discharge water.

Specifically, as shown in fig. 1, 2 and 3, after the faucet 12 is turned on, the gas water heater 11 starts to operate, and water is supplied to the external water inlet pipe 3, and at this time, the internal water outlet pipe 801 connected to the two-position three-way electromagnetic valve 8 is in an open state, and the connection pipe 9 is in a closed state.

The cold water just fed into the water inlet tee 4 from the outer water inlet pipe 3 enters the cold water cabin 201 through the inner water inlet pipe 5 and the check valve 6 to push the floating baffle member 7 to float upwards.

The floating baffle member 7 floats upwards, and the hot water in the hot water cabin 202 is sent to the water tap 12 for discharging through the water outlet pipe 801 in the liner, the two-position three-way electromagnetic valve 8 and the water outlet pipe 10.

When the sensor 18 senses that the floating partition plate member 7 floats to a set height, the electric heating device 17 starts to heat cold water in the cold water tank 201, and simultaneously, the two-position three-way electromagnetic valve 8 changes the opening and closing direction of the port at the lower part, so that the water outlet pipe 801 in the liner is closed, and the connecting pipe 9 is opened (note: at this time, hot water flows into the outer water inlet pipe 3 and the inner water inlet pipe 5).

At this time, the heated hot water of the gas water heater 11 is sent to the tap 12 for discharge through the outer water inlet pipe 3, the water inlet tee 4, the connecting pipe 9, the two-position tee electromagnetic valve 8 and the water outlet pipe 10.

As the cold water in the cold water tank 201 is heated by the electric heating device 17, the temperature rises, the low-temperature evaporating liquid 16 in the liquid storage box 15 begins to evaporate and expand to be in a vapor state, the two sliding plates 14 are pushed to the left and right until one end of the sliding plate 14 far away from the second limiting plate 20 is abutted against the side wall of the hollow partition plate 13, the communication hole 1401, the upper communication pipe 1303 and the lower communication pipe 1302 are communicated up and down, the floating partition plate member 7 falls under the action of gravity, the electric heating device 17 is closed, the cover plate 1304 is opened under the action of the upward water flow, and the heated hot water in the cold water tank 201 enters the hot water tank 202.

Until the floating diaphragm member 7 falls on the second limiting plate 20, the cover plate 1304 falls back, closing the upper communication pipe 1303. After the cold water tank 201 is refilled with cold water and the water temperature is reduced, the low-temperature evaporating liquid 16 is liquefied, the sliding plate 14 is retracted, the low-temperature evaporating liquid 16 liquefied on the surface of the inner cavity is pushed into the liquid storage box 15 again, and the next circulation process is waited.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. A constant temperature electric water heater capable of continuously supplying heat is characterized in that: the protective shell comprises a shell body (101), wherein an inner container (2) is fixedly arranged on the inner side of the shell body (101), a pipe distribution gap is reserved between the shell body (101) and the inner container (2), and a water inlet tee joint (4), an inner water inlet pipe (5), a two-position tee electromagnetic valve (8) and a connecting pipe (9) are arranged in the pipe distribution gap;

the water inlet tee joint (4), the two-position tee electromagnetic valve (8) and the connecting pipe (9) are positioned at the top of the liner (2), the upper port of the water inlet tee joint (4) is embedded on the shell (101), the upper port of the water inlet tee joint (4) is used for being connected with the outer water inlet pipe (3), and one water outlet at the lower part of the water inlet tee joint (4) is connected with the upper end of the inner water inlet pipe (5);

a check valve (6) is fixedly embedded at the bottom of the liner (2), one end of the check valve (6) is connected with the inner water inlet pipe (5), and the other end of the check valve (6) is communicated with the cold water cabin (201);

the upper port of the two-position three-way electromagnetic valve (8) is embedded on the shell (101), and the upper port of the two-position three-way electromagnetic valve (8) is used for being connected with the water outlet pipe (10); one port at the lower part of the two-position three-way electromagnetic valve (8) is connected with the other water outlet at the lower part of the water inlet tee joint (4) through a connecting pipe (9), the other port at the lower part of the two-position three-way electromagnetic valve (8) is connected with the inner container water outlet pipe (801), and the other end of the inner container water outlet pipe (801) is communicated with the top of the inner container (2);

a floating partition plate member (7) capable of moving up and down is arranged in the inner container (2), the floating partition plate member (7) divides the inner space of the inner container (2) into a cold water cabin (201) and a hot water cabin (202) which are mutually independent, the cold water cabin (201) is positioned below the hot water cabin (202), and the floating partition plate member (7) comprises a controllable communication mechanism which is used for controlling the communication or closing of the cold water cabin (201) and the hot water cabin (202);

an electric heating device (17) is arranged in the cold water cabin (201), an inductor (18) is arranged on the inner wall of the hot water cabin (202), and the inductor (18) is used for sensing the vertical distance between the inductor and the floating partition plate member (7) so as to control the opening or closing of the electric heating device (17).

2. A constant temperature electric water heater capable of continuously supplying heat as claimed in claim 1, wherein: the floating partition plate member (7) comprises a hollow partition plate (13), a hollow cavity is formed in the hollow partition plate (13), a lower communicating pipe (1302) is fixedly embedded in the lower side plate of the hollow partition plate (13), and the lower communicating pipe (1302) is used for communicating the cold water cabin (201) with the cavity in the hollow partition plate (13);

an upper communicating pipe (1303) is fixedly embedded in the upper side plate of the hollow partition plate (13), the upper communicating pipe (1303) is used for communicating the hot water cabin (202) with a cavity in the hollow partition plate (13), and the upper communicating pipe (1303) corresponds to the communicating pipe (1302) up and down;

the controllable communication mechanism comprises a sliding plate (14) and a collapsible pushing device, the sliding plate (14) is arranged in a cavity in the hollow partition plate (13) in a sliding manner, the thickness of the sliding plate (14) is equal to the vertical width of the inner cavity of the hollow partition plate (13), the collapsible pushing device is arranged at the bottom of the hollow partition plate (13) and is communicated with the inner cavity, and the pushing device is used for driving the sliding plate (14) to push out and reset under the conditions of thermal expansion and cold contraction;

a communication hole (1401) which penetrates up and down is arranged in the sliding plate (14), and the communication hole (1401), the upper communication pipe (1303) and the lower communication pipe (1302) can be communicated up and down after the sliding plate (14) is pushed out; when the slide plate (14) is in the initial state, the communication hole (1401) is displaced from the upper communication pipe (1303) to the lower communication pipe (1302).

3. A constant temperature electric water heater capable of continuously supplying heat as claimed in claim 2, wherein: the expansion pushing device comprises a liquid storage box (15), the liquid storage box (15) is made of heat conducting materials, low-temperature evaporating liquid (16) is arranged in the liquid storage box (15), the evaporating temperature of the low-temperature evaporating liquid (16) is 40-80 ℃, and the top of the liquid storage box (15) is communicated with the inner cavity of the hollow partition plate (13).

4. A constant temperature electric water heater capable of continuously supplying heat as claimed in claim 3, wherein: the liquid storage box (15) is arranged at the middle position of the bottom side of the hollow partition plate (13), two sliding plates (14) are slidably arranged in the cavity of the hollow partition plate (13), and the two sliding plates (14) are radially symmetrical left and right relative to the liquid storage box (15).

5. A constant temperature electric water heater capable of continuously supplying heat as claimed in claim 4, wherein: the inner chamber top of cavity baffle (13) is fixed to be equipped with two about first limiting plate (19) that the interval set up, and first limiting plate (19) are located directly over reservoir (15), and the upper and lower length of first limiting plate (19) is less than the upper and lower thickness of sliding plate (14), and first limiting plate (19) are used for making about two restriction sliding plate (14) between have the clearance when initial state.

6. A constant temperature electric water heater capable of continuously supplying heat as claimed in claim 5, wherein: when the sliding plate (14) is in an initial state, one end of the sliding plate (14) facing the first limiting plate (19) is in a suspended state, and one end of the sliding plate (14) facing the first limiting plate (19) is positioned right above the liquid storage box (15).

7. A constant temperature electric water heater capable of continuously supplying heat according to any one of claims 2-6, wherein: the top of the upper communicating pipe (1303) is hinged with a cover plate (1304) which can rotate upwards.

8. A constant temperature electric water heater capable of continuously supplying heat according to any one of claims 1 to 6, wherein: the inner wall of the cold water cabin (201) is provided with a second limiting plate (20), the second limiting plate (20) is positioned above the electric heating device (17), and the second limiting plate (20) is used for limiting the floating initial position of the floating partition plate member (7).

9. A constant temperature electric water heater capable of continuously supplying heat according to any one of claims 1 to 6, wherein: the protective shell (1) also comprises an insulating layer (102) filled between the shell (101) and the liner (2).