CN216282068U

CN216282068U - Electric water heater

Info

Publication number: CN216282068U
Application number: CN202122113476.4U
Authority: CN
Inventors: 梁业怡
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-04-12
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses an electric water heater.A water tank is fixed in a bottom shell of the electric water heater, and the wall body of the water tank is connected with a cold water short pipe, a hot water short pipe, an electric heater, a water supplementing pipe and a temperature limiter; the temperature limiter is fixed on the lower section of the water tank and is immersed in water; the top of the water tank is connected with a vent pipe, a heat exchange water immersion pipe is fixed in the water tank, one end of the heat exchange water immersion pipe is in sealing butt joint with the cold water short pipe, and the other end of the heat exchange water immersion pipe is in sealing butt joint with the hot water short pipe; a floating electric switch is hung on the inner top wall of the water tank in a sealing way; the cold water short pipe is connected with a tap water short pipe in a sealing way; the electric water mixing valve is respectively connected with the hot water short pipe and the tap water short pipe and is fixedly provided with a water mixing temperature sensor; the face shell is fixed with a function controller and a main control circuit controller; the water tank is connected with a water cavity water temperature sensor; this product utilizes the high temperature water in water storage chamber to carry out the heat exchange to the cold water that flows through heat transfer water immersion pipe, and hot water finally flows out can not produce the incrustation scale in heat transfer water immersion pipe, makes the shower water clean health futilely.

Description

Electric water heater

Technical Field

The utility model relates to a household water heater, in particular to an electric water heater.

Background

1. The heating pipe of the existing instant electric water heater is directly contacted with inlet water for heating, an internal water passage after long-term use generates a large amount of scale, the water passage becomes narrow, the water yield is influenced, and the water is unsanitary; 2. the heating tube of the existing heat storage type electric water heater is also directly contacted with inlet water for heating, an internal water cavity after long-term use generates a large amount of scale, and water is soaked in the water cavity for a long time and is very insanitary.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric water heater with the functions of automatically adding water, automatically cutting off power under abnormal conditions and automatically adjusting water temperature.

The scheme for solving the technical problems is as follows:

an electric water heater comprises a bottom shell, a face shell and an electric water mixing valve, wherein a water tank is fixed in the bottom shell, a water storage cavity is arranged in the water tank, the wall body of the water tank is connected with a cold water short pipe, a hot water short pipe, an electric heater, a water supplementing pipe and a temperature limiter, and the other end of the water supplementing pipe is connected with an electric switch valve; the temperature limiter is fixed on the lower section of the water tank in a cross-connecting type sealing way and is immersed in water;

the top of the water tank is connected with a vent pipe, a heat exchange water immersion pipe is fixed in the vent pipe, the other end of the vent pipe penetrates out of the bottom shell downwards, one end of the heat exchange water immersion pipe is in sealing butt joint with the cold water short pipe, and the other end of the heat exchange water immersion pipe is in sealing butt joint with the hot water short pipe; the air permeability pipe is communicated with the water storage cavity;

the inner top wall of the water tank is hermetically hung with a floating electric switch;

the cold water short pipe is connected with a tap water short pipe in a sealing way, the lower end of the tap water short pipe penetrates out of the bottom shell, and the other end of the electric switch valve is in sealing butt joint with the tap water short pipe;

the electric water mixing valve comprises a hot water inlet joint, a cold water inlet joint and a cold and hot water mixing water outlet joint, the hot water inlet joint is hermetically connected with the hot water short pipe, the cold water inlet joint is connected with the tap water short pipe, the cold and hot water mixing water outlet joint penetrates out of the bottom shell downwards, and a mixed water temperature sensor is fixed on the cold and hot water mixing water outlet joint;

the wall body of the face shell is fixedly provided with a function controller, the back surface of the face shell is fixedly provided with a main control circuit controller through a support, and the main control circuit controller is respectively connected with the function controller, the electric water mixing valve, the floating electric switch, the electric heater, the temperature limiter, the electric switch valve and the water mixing temperature sensor through electric wires;

the water tank cross-under type sealing connection has a water cavity water temperature sensor, and the water cavity water temperature sensor is connected with the main control circuit controller through an electric wire.

The electric water heater of the utility model has the advantages that: 1. the shower water heater obtains low-temperature water by heat exchange of high-temperature water, utilizes the high-temperature water for heat transfer, utilizes static water for heat transfer heating of flowing water, cannot generate scale in a heat exchange water pipe, and enables shower water to be clean and sanitary; 2. the top of the water tank is connected with the vent pipe, so that ventilation is provided for the real-time fluctuation of the water level in the water tank, the internal and external atmospheric pressures are balanced, the air pressure in the water tank is prevented, and the possibility of explosion is prevented; 3. a floating electric switch is hung on the inner top wall of the water tank in a sealing way, when the water level drops to exceed the set water level, the power supply in the floating electric switch is disconnected, the electric heater cannot work, and the electricity utilization safety is ensured; 4. the heat exchange water immersion pipe is immersed in high-temperature hot water in the water storage cavity for heat exchange, so that scale is prevented from being formed in the heat exchange water immersion pipe, and the water is more sanitary; 5. after the function controller sets the water temperature, the electric water mixing valve can automatically adjust and mix hot water and cold water according to the required water temperature, and finally the required water temperature is obtained; 6. the water in the water storage cavity directly contacts the electric heater, so that weak current and generated potential can be eliminated, the electric heater is prevented from directly contacting water used in circulation, and the electric heater has the function of isolating the weak current and the potential.

Drawings

Fig. 1, fig. 2 and fig. 3 are vertical arrangement perspective views of the electric water heater of the utility model;

figure 4 is a cross-sectional view of a floating electrical switch of the present invention;

FIG. 5 is a perspective view of the product tank of the present invention arranged vertically;

FIGS. 6 and 7 are sectional views of the product tank of the present invention arranged vertically;

fig. 8 and 9 are explosion diagrams of the vertical arrangement of the electric water heater of the utility model;

fig. 10 and 11 are perspective views of the transverse arrangement of the electric water heater of the utility model;

FIGS. 12 and 13 are sectional views of the product tank of the present invention arranged vertically;

fig. 14 and 15 are exploded views of the transverse arrangement of the electric water heater of the utility model.

Bottom shell 1, face shell 2, water tank 3, water storage cavity 31, cold water short pipe 32, hot water short pipe 33, electric heater 4, water replenishing pipe 5, temperature limiter 6, electric switch valve 7, vent pipe 8, heat exchange water immersion pipe 9, floating electric switch 34, tap water short pipe 35, electric water mixing valve 36, water cavity water temperature sensor 37, positioning column 38, through hole four 39, hot water inlet joint 361, cold water inlet joint 362, cold and hot water mixed water outlet joint 363, mixed water temperature sensor 364, hot water outlet temperature sensor 365, function controller 21, bracket 22, main control circuit controller 23, wall mounting rack 1A, through hole one 11, through hole two 12, through hole three 13, power line through hole 14, hollow pipe 341, floater 342, magnetic switch electronic component 343, upper limiting convex ring 344, lower

limiting convex ring

345, 346, water tank hole 41, base 42, heating pipe 43, flange ring 44, water tank hole 41, water replenishing pipe 5, water inlet pipe 6, cold water outlet joint 363, cold water outlet pipe 363, hot water temperature sensor 363, hot water outlet pipe 363, hot water temperature sensor 23, and hot water outlet pipe 38, And a fixing ring 45.

Detailed Description

As shown in fig. 1 to 15: an electric water heater comprises a bottom shell 1, a face shell 2 and an electric water mixing valve 36, wherein a water tank 3 is fixed in the bottom shell 1, a water storage cavity 31 is arranged in the water tank 3, the wall body of the water tank 3 is connected with a cold water short pipe 32, a hot water short pipe 33, an electric heater 4, a water replenishing pipe 5 and a temperature limiter 6 (the temperature limiter 6 is also called as a temperature controller), the other end of the water replenishing pipe 5 is connected with an electric switch valve 7, the electric switch valve 7 is a valve body with an electric switch function such as an electromagnetic switch valve or a motor switch valve, and when the electric water heater is powered off, the electric switch valve 7 is closed and can not feed water to the water storage cavity 31; the temperature limiter 6 is fixed on the lower section of the water tank 3 in a penetrating and sealing way and is immersed in water, and the electric heater 4 heats the water in the water storage cavity 31 to be controlled within 95 ℃ (the temperature is generally set to be 90 ℃); the temperature limiter normally works within 95 ℃, when the water temperature in the water storage cavity is higher than a set value of 95 ℃, the interior of the temperature limiter is automatically disconnected, and the electric heater cannot work when the power is off;

if the installed temperature limiter 6 is an automatic reset type temperature limiter, the temperature limiter 6 automatically resets and is conducted once the water in the water storage cavity 31 returns to the normal temperature;

if the installed temperature limiter 6 is a manual reset type temperature limiter, a through hole needs to be formed in the position, opposite to the temperature limiter 6, of the bottom shell 1, the interior of the temperature limiter 6 is automatically disconnected in case that the temperature of water in the water storage cavity 31 is higher than a set value, and during reset, a small long stick is inserted into a reset key poking the temperature limiter 6 from the through hole for manual reset;

the bottom shell 1 and the face shell 2 are made of metal, have the function of eliminating static electricity/weak current and can be used on local lines;

the top of the water tank 3 is connected with a vent pipe 8, a heat exchange water immersion pipe 9 is fixed in the water tank, the heat exchange water immersion pipe is arranged in the water storage cavity, the other end of the vent pipe 8 penetrates out of the bottom shell 1 downwards, one end of the heat exchange water immersion pipe 9 is in sealing butt joint with the cold water short pipe 32, and the other end of the heat exchange water immersion pipe 9 is in sealing butt joint with the hot water short pipe 33; the heat exchange water immersion pipe 9 can be completely immersed in water; the vent pipe is communicated with the water storage cavity (the vent pipe is communicated with the water storage cavity 31 by arranging a vent hole at the top of the water tank 3), and the vent pipe provides ventilation for the real-time fluctuation of the water level in the water tank, balances the internal and external atmospheric pressures, prevents the air pressure from being generated in the water tank and prevents the possibility of explosion; the heat exchange water immersion pipe 9 is a cylinder formed by winding a corrugated pipe, the total length is 3-10 m, the length is determined according to heat exchange power, the heat exchange water immersion pipe is wound into two to three cylinders to increase the heat exchange area, the corrugated pipe has a turbulent flow effect, and the heat exchange efficiency is improved; the heat exchange water immersion pipe 9 is made of aluminum, copper or stainless iron;

a floating electric switch 34 is hung on the inner top wall of the water tank 3 in a sealing manner, when the water level of the water storage cavity 31 drops to exceed the set water level, the water source is insufficient, the power supply in the floating electric switch 34 is disconnected, the main control circuit controller 23 cannot supply power to the electric heater, the electric heater cannot work, and the power utilization safety is ensured;

the cold water short pipe 32 is connected with a tap water short pipe 35 in a sealing manner, the lower end of the tap water short pipe 35 penetrates out of the bottom shell 1, the other end of the electric switch valve 7 is in sealing butt joint with the tap water short pipe 35, and the tap water short pipe 35 adds water to the water storage cavity 31 through the electric switch valve 7 and the water supplementing pipe 5; when the water level of the water storage cavity 31 drops to exceed the set water level, the water source is insufficient, the power supply in the floating electric switch 34 is disconnected, the main control circuit controller 23 controls the electric switch valve 7 to be opened to add water into the water storage cavity 31 after receiving a power-off signal, the floating electric switch 34 floats after adding water, and the main control circuit controller 23 supplies power to the electric heater 4 after receiving a power supply conducting signal of the floating electric switch 34;

the electric water mixing valve 36 comprises a hot water inlet joint 361, a cold water inlet joint 362 and a cold and hot water mixing water outlet joint 363, the hot water inlet joint 361 is hermetically connected with a hot water short pipe 33, the cold water inlet joint 362 is connected with a tap water short pipe 35, the cold and hot water mixing water outlet joint 363 penetrates out of the bottom shell 1 downwards to be connected with a bathing appliance, a mixed water temperature sensor 364 is fixed on the cold and hot water mixing water outlet joint 363, the mixed water temperature sensor 364 is used for detecting the final hot water outlet temperature after mixing, the mixed water temperature sensor 364 feeds the water temperature back to the main control circuit controller 23 in real time after the function controller 21 sets the required water temperature, the main control circuit controller 23 controls the electric water mixing valve 36 to simultaneously open the cold and hot water ends for mixing according to the set required water temperature, the required bathing hot water temperature is finally obtained after mixing, and the bathing hot water temperature is generally 30-50 ℃;

the water tank 3 is connected with a water cavity water temperature sensor 37 in a cross-connecting type sealing mode, and the water cavity water temperature sensor 37 is connected with the main control circuit controller 23 through an electric wire; the water cavity water temperature sensor 37 is used for detecting the water temperature in the water storage cavity 31, the water temperature of the water storage cavity 31 is set to be within 95 ℃ at most (generally, 90 ℃) through the main control circuit controller 23 during production, after heating is started, the water cavity water temperature sensor 37 feeds the water temperature back to the main control circuit controller 23 in real time, when the preset temperature is reached (for example, 90 ℃), the main control circuit controller 23 controls the electric heater 4 to keep the temperature to heat the water in the water storage cavity 31 at a constant temperature, so that the water flowing through the heat exchange water immersion pipe 9 is heated at the constant temperature, and the water flows out at the constant temperature (for example, the water temperature of the water storage cavity 31 is 90 ℃, the hot water flowing out of the heat exchange water immersion pipe 9 is about 50 ℃ after heat transfer conversion, and for example, the water temperature of the water storage cavity 31 is 80 ℃, the hot water flowing out of the heat exchange water immersion pipe 9 is about 43 ℃ after heat transfer conversion);

a functional controller 21 is fixed on the wall body of the face shell 2 and used for manual contact control, a main control circuit controller 23 is fixed on the reverse side of the face shell through a support 22, and the main control circuit controller 23 is respectively connected with the functional controller 21, the electric water mixing valve 36, the floating electric switch 34, the electric heater 4, the temperature limiter 6, the electric switch valve 7 and the water mixing temperature sensor 364 through wires; the main control circuit controller 23 controls the electric water mixing valve 36, the electric heater 4 and the electric switch valve 7 to work, and the above components form the basic structure of the electric water heater.

Working processes, such as:

when the water heater is used, the machine is started on the function controller 21, the required water temperature (for example: 38 ℃) is preset, the main control circuit controller 23 controls the electric heater 4 to heat the water in the water storage cavity 31, the specified heat exchange water temperature (for example: 90 ℃) can be reached after about 3-5 minutes of large heating, and the sound prompt or the light prompt is sent out through the function controller 21 after the water in the water storage cavity 31 reaches the heat exchange water temperature, so that the user can take a bath with hot water; the high-temperature water in the water storage cavity 31 carries out heat transfer heating on the water flowing through the heat exchange water immersion pipe 9; the user opens the electric water mixing valve 36 through the function controller 21, when the mixed water temperature sensor 364 detects that the temperature of the entering hot water is too high, the main control circuit controller 23 controls the electric water mixing valve 36 to open the cold end and the hot water end simultaneously according to the set required water temperature, so that the required bath hot water temperature is finally obtained after mixing, and then the bath hot water is obtained from the cold and hot water mixing water outlet joint 363.

Further: the back of the bottom shell 1 is connected with a wall mounting rack 1A for mounting a water heater.

Further: a first through hole 11, a second through hole 12, a third through hole 13 and a power line cross-connecting through hole 14 are formed in the inner bottom of the bottom shell 1, a cold and hot water mixing water outlet joint 363 penetrates out of the bottom shell 1 from the first through hole 11, a tap water short pipe 35 penetrates out of the bottom shell 1 from the second through hole 12, the other end of the vent pipe 8 penetrates out of the bottom shell 1 from the third through hole 13, and a mounting structure is reasonably arranged; the other end of the vent pipe 8 penetrates out of the bottom shell 1 from the third through hole 13 and is used for discharging the water in the water tank out of the body, and the water in the water tank is prevented from entering the interior.

Further: the floating electric switch 34 comprises a hollow tube 341, a floater 342 and a magnetic switch electronic component 343 (for example, the magnetic switch electronic component 343 is a reed switch magnetic switch), the bottom section of the hollow tube 341 is sealed, the top end of the hollow tube 341 is fixedly connected with the inner top wall of the water tank 3, the magnetic switch electronic component 343 is fixed at the middle section of the hollow tube 341, an electric wire connected with the magnetic switch electronic component 343 penetrates out from the top of the water tank 3, the middle section wall of the hollow tube 341 extends to form an upper limit convex ring 344, the bottom end wall extends to form a lower limit convex ring 345, the hollow tube 341 between the upper limit convex ring 344 and the lower limit convex ring 345 is connected with the floater 342 in a penetrating way, and a magnetic ring 346 is wrapped in the floater 342; when the water source is sufficient, the floater 342 floats, the magnetic ring 346 enables the magnetic switch electronic element 343 to be closed and conducted, and the electric heater 4 can work normally; when the water level of the water storage cavity 31 drops to exceed the set water level, the floater 342 falls, which indicates that the water source is insufficient, the magnetic ring 346 is far away from the magnetic switch electronic element 343 and is not conducted, the main control circuit controller 23 cannot supply power to the electric heater, and the electric heater cannot work, so that the power utilization safety is ensured;

further: the inner top wall of the water tank 3 is fixedly connected with a positioning column 38, and the positioning column 38 is connected with the heat exchange water immersion pipe 9 in a positioning mode and used for fixing the heat exchange water immersion pipe 9 without loosening.

Further: the electric heater 4 is including locating water tank hole 41, base 42, heating tube 43, the flange circle 44 of the wall body of water tank 3, and the bottom mounting of heating tube 43 is on base 42, and the hole along extending the evagination at water tank hole 41 has the solid fixed ring 45 of round, and base 42 is fixed in water tank hole 41 through the sealing washer and presss from both sides tight fixed connection at solid fixed ring 45 with flange circle 44, and heating tube 43 arranges in the water storage chamber 31, and this is located the reasonable mounting structure and the seal structure that set up electric heater 4.

Further: the wall body of the lower section of the water tank 3 is provided with a through hole four 39, a probe of the temperature limiter 6 penetrates through the through hole four 39 to stretch into the water storage cavity 31 to be in contact with water for real-time temperature measurement, and a body of the temperature limiter 6 seals the through hole four 39 through a sealing ring and is fixed on the wall body of the water tank 3, so that a better temperature measurement structure is arranged.

Further: the water tank 3 comprises a bottom tank body and a tank cover, the water storage cavity 31 is arranged in the bottom tank body, and the tank cover is fixedly connected with the sealed bottom tank body through a sealing ring and is provided with a tank opening.

Further: the hot water inlet joint 361 is fixed with a hot water outlet temperature sensor 365, the hot water outlet temperature sensor 365 is connected with the main control circuit controller 23 through an electric wire, water coming out of the hot water short pipe 33 enters the electric water mixing valve 36 and then can be detected by the hot water outlet temperature sensor 365 in advance, the main control circuit controller 23 controls the electric water mixing valve 36 to open a corresponding proportion according to a preset program, the main control circuit controller 23 controls the electric water mixing valve 36 to open a corresponding proportion according to the hot water temperature, and the hot water inlet joint 364 is matched with the hot water outlet temperature sensor 364, so that hot water and cold water are mixed better and accurately, and the final hot water outlet temperature is more accurate.

Further: the electric water heater can be longitudinally arranged or transversely arranged; when the water tank 3 is longitudinally arranged, the bottom wall body of the water tank 3 is connected with the electric heater 4; when the water tank 3 is transversely arranged, the left side wall body or the right side wall body of the water tank 3 is connected with the electric heater 4.

Embodiment 1, this embodiment is an electric water heater disposed longitudinally:

as shown in fig. 1 to 9: an electric water heater is vertically arranged integrally and comprises a bottom shell 1, a face shell 2 and an electric water mixing valve 36, wherein a water tank 3 is fixed in the bottom shell 1, a water storage cavity 31 is formed in the water tank 3, a wall body of the water tank 3 is connected with a cold water short pipe 32, a hot water short pipe 33, an electric heater 4, a water replenishing pipe 5 and a temperature limiter 6, the other end of the water replenishing pipe 5 is connected with an electric switch valve 7, the electric switch valve 7 is a valve body with an electric switch function such as an electromagnetic switch valve or a motor switch valve, and when the electric water heater is powered off, the electric switch valve 7 is closed and can not lead water to the water storage cavity 31; the temperature limiter 6 is fixedly connected with the lower section of the water tank 3 in a penetrating and sealing way and is immersed in water, the electric heater 4 heats water in the water storage cavity 31 to be controlled within 95 ℃, when the temperature of the water in the water storage cavity 31 is higher than a set value of 95 ℃, the interior of the temperature limiter 6 is automatically disconnected, and the electric heater 4 is powered off and cannot work; the bottom shell 1 and the face shell 2 are made of metal, have the function of eliminating static electricity/weak current and can be used on local lines;

the top of the water tank 3 is connected with a vent pipe 8, a heat exchange water immersion pipe 9 is fixed in the vent pipe 8, the other end of the vent pipe 8 penetrates out of the bottom shell 1, one end of the heat exchange water immersion pipe 9 is in sealing butt joint with a cold water short pipe 32, and the other end of the heat exchange water immersion pipe 9 is in sealing butt joint with a hot water short pipe 33; the heat exchange water immersion pipes 9 are completely immersed in water, and the vent pipes provide ventilation for the water level in the water tank to rise and fall in real time, balance the internal and external atmospheric pressure, prevent the air pressure in the water tank and prevent the possibility of explosion; the heat exchange water immersion pipe 9 is a cylinder formed by winding a corrugated pipe, the total length is 3-10 m, the length is determined according to heat exchange power, the heat exchange water immersion pipe is wound into two to three cylinders to increase the heat exchange area, the corrugated pipe has a turbulent flow effect, and the heat exchange efficiency is improved;

the water tank 3 is connected with a water cavity water temperature sensor 37 in a cross-connecting type sealing mode, and the water cavity water temperature sensor 37 is connected with the main control circuit controller 23 through an electric wire; the water cavity water temperature sensor 37 is used for detecting the water temperature in the water storage cavity 31, the water temperature of the water storage cavity 31 is set to be 90 ℃ at most through the main control circuit controller 23, after heating is started, the water cavity water temperature sensor 37 feeds the water temperature back to the main control circuit controller 23 in real time, when the water temperature reaches 90 ℃, the main control circuit controller 23 controls the electric heater 4 to keep the temperature to heat the water in the water storage cavity 31 at a constant temperature, and therefore the water flowing through the heat exchange water immersion pipe 9 flows out of the water at a constant temperature;

a functional controller 21 is fixed on the wall body of the face shell 2 and used for manual contact control, a main control circuit controller 23 is fixed on the reverse side of the face shell through a support 22, and the main control circuit controller 23 is respectively connected with the functional controller 21, the electric water mixing valve 36, the floating electric switch 34, the electric heater 4, the temperature limiter 6, the electric switch valve 7 and the water mixing temperature sensor 364 through wires; the main control circuit controller 23 controls the electric water mixing valve 36, the electric heater 4 and the electric switch valve 7 to work;

a first through hole 11, a second through hole 12, a third through hole 13 and a power line cross-connecting through hole 14 are formed in the inner bottom of the bottom shell 1, a cold and hot water mixing water outlet joint 363 penetrates out of the bottom shell 1 from the first through hole 11, a tap water short pipe 35 penetrates out of the bottom shell 1 from the second through hole 12, the other end of the vent pipe 8 penetrates out of the bottom shell 1 from the third through hole 13, and a mounting structure is reasonably arranged; the other end of the vent pipe 8 penetrates out of the bottom shell 1 from the third through hole 13 downwards to discharge the water in the water tank out of the body, so that the water in the water tank is prevented from entering the interior;

the electric heater 4 comprises a water tank hole 41 arranged on the wall body of the water tank 3, a base 42, a heating pipe 43 and a flange ring 44, the bottom end of the heating pipe 43 is fixed on the base 42, a circle of fixing ring 45 is convexly extended along the hole of the water tank hole 41, the base 42 is fixed on the water tank hole 41 through a sealing ring and is fixedly connected to the fixing ring 45 by being clamped by the flange ring 44, and the heating pipe 43 is arranged in the water storage cavity 31;

the cold water short pipe 32, the hot water short pipe 33, the electric heater 4, the electric switch valve 7, the heat exchange water immersion pipe 9, the tap water short pipe 35, the electric water mixing valve 36, the first through hole 11, the second through hole 12, the third through hole 13, the power line cross-connecting through hole 14, the water tank hole 41, the base 42, the flange ring 44 and the fixing ring 45 are all arranged at the bottom of the electric water heater.

Embodiment 2, this embodiment is a horizontally arranged electric water heater:

as shown in fig. 4, fig. 10 to fig. 15: an electric water heater is transversely arranged integrally and comprises a bottom shell 1, a face shell 2 and an electric water mixing valve 36, wherein a water tank 3 is fixed in the bottom shell 1, a water storage cavity 31 is formed in the water tank 3, the wall body of the water tank 3 is connected with a cold water short pipe 32, a hot water short pipe 33, an electric heater 4, a water replenishing pipe 5 and a temperature limiter 6, the other end of the water replenishing pipe 5 is connected with an electric switch valve 7, the electric switch valve 7 is a valve body with an electric switch function such as an electromagnetic switch valve or a motor switch valve, and when the electric water heater is powered off, the electric switch valve 7 is closed and can not lead water to the water storage cavity 31; the temperature limiter 6 is fixedly connected with the lower section of the water tank 3 in a penetrating and sealing way and is immersed in water, the electric heater 4 heats water in the water storage cavity 31 to be controlled within 95 ℃, when the temperature of the water in the water storage cavity 31 is higher than a set value of 95 ℃, the interior of the temperature limiter 6 is automatically disconnected, and the electric heater 4 is powered off and cannot work; the bottom shell 1 and the face shell 2 are made of metal, have the function of eliminating static electricity/weak current and can be used on local lines;

the water tank 3 is connected with a water cavity water temperature sensor 37 in a cross-connecting type sealing mode, and the water cavity water temperature sensor 37 is connected with the main control circuit controller 23 through an electric wire; the water cavity water temperature sensor 37 is used for detecting the water temperature in the water storage cavity 31, the water temperature of the water storage cavity 31 is set to be 93 ℃ at most through the main control circuit controller 23, after heating is started, the water temperature is fed back to the main control circuit controller 23 by the water cavity water temperature sensor 37 in real time, when the water temperature reaches 93 ℃ at most, the main control circuit controller 23 controls the electric heater 4 to keep the temperature to heat the water in the water storage cavity 31 at constant temperature, so that the water flowing through the heat exchange water immersion pipe 9 flows out at constant temperature, and hot water flows out (for example, the water temperature of the water storage cavity 31 is 93 ℃, and after heat transfer conversion, the hot water flowing out of the heat exchange water immersion pipe 9 is about 55 ℃);

a functional controller 21 is fixed on the wall body of the face shell 2 and used for manual contact control, a main control circuit controller 23 is fixed on the reverse side of the face shell through a support 22, and the main control circuit controller 23 is respectively connected with the functional controller 21, the electric water mixing valve 36, the floating electric switch 34, the electric heater 4, the temperature limiter 6, the electric switch valve 7 and the water mixing temperature sensor 364 through wires;

the cold water short pipe 32, the hot water short pipe 33, the electric switch valve 7, the tap water short pipe 35, the electric mixing valve 36, the water tank hole 41, the base 42, the flange ring 44 and the fixing ring 45 are all arranged on the right side of the electric water heater. The bottom shell 1, the face shell 2, the water tank 3, the electric heater 4 and the heat exchange water immersion pipe 9 are transversely arranged. The first through hole 11, the second through hole 12, the third through hole 13 and the power line cross-connecting through hole 14 are arranged at the bottom of the electric water heater.

Claims

1. The utility model provides an electric water heater, includes drain pan, face-piece, electronic muddy water valve, its characterized in that: a water tank is fixed in the bottom shell, a water storage cavity is arranged in the water tank, the wall body of the water tank is connected with a cold water short pipe, a hot water short pipe, an electric heater, a water supplementing pipe and a temperature limiter, and the other end of the water supplementing pipe is connected with an electric switch valve; the temperature limiter is fixed on the lower section of the water tank in a cross-connecting type sealing way and is immersed in water;

the top of the water tank is connected with a vent pipe, a heat exchange water immersion pipe is fixed in the vent pipe, the other end of the vent pipe penetrates out of the bottom shell downwards, the vent pipe is communicated with the water storage cavity, one end of the heat exchange water immersion pipe is in sealing butt joint with the cold water short pipe, and the other end of the heat exchange water immersion pipe is in sealing butt joint with the hot water short pipe;

2. An electric water heater according to claim 1, wherein: the inner bottom of the bottom shell is provided with a first through hole, a second through hole, a third through hole and a power line cross-connecting through hole, a cold and hot water mixing water outlet joint penetrates out of the bottom shell from the first through hole, a tap water short pipe penetrates out of the bottom shell from the second through hole, and the other end of the vent pipe penetrates out of the bottom shell from the third through hole.

3. An electric water heater according to claim 1, wherein: the float electric switch includes hollow tube, float, magnetism switch electronic component, the bottom segment of hollow tube is sealed, the top of hollow tube and the interior roof fixed connection of water tank, magnetism switch electronic component fixes the middle section at the hollow tube, the electric wire that magnetism switch electronic component connects is worn out from the top of water tank, the middle section wall body of hollow tube extends and has last spacing bulge loop, the bottom wall body extends has lower spacing bulge loop, go up the hollow tube between spacing bulge loop and the lower spacing bulge loop and have worn and have connect the float, the parcel has the magnetic ring in the float.

4. An electric water heater according to claim 1, wherein: the inner top wall of the water tank is fixedly connected with a positioning column, and the positioning column is connected with a heat exchange water immersion pipe in a positioning mode.

5. An electric water heater according to claim 1, wherein: the electric heater comprises a water tank hole, a base, a heating pipe and a flange ring, wherein the water tank hole is formed in a water tank wall body, the bottom end of the heating pipe is fixed on the base, a circle of fixing rings are arranged in the hole of the water tank hole along an extending outer convex, the base is fixed in the water tank hole through a sealing ring and is fixedly connected to the fixing rings through the flange ring in a clamping mode, and the heating pipe is arranged in a water storage cavity.

6. An electric water heater according to claim 1, wherein: and a fourth through hole is formed in the lower section wall body of the water tank, a probe of the temperature limiter penetrates through the fourth through hole to be arranged in the water storage cavity, and a body of the temperature limiter is fixed on the wall body of the water tank by sealing the fourth through hole through a sealing ring.

7. An electric water heater according to claim 1, wherein: the water tank comprises a bottom tank body and a tank cover, the water storage cavity is arranged in the bottom tank body, and the tank cover is fixedly connected with the sealed bottom tank body through a sealing ring and is provided with a tank opening.

8. An electric water heater according to claim 1, wherein: and a hot water outlet temperature sensor is fixed on the hot water inlet joint and is connected with the main control circuit controller through an electric wire.

9. An electric water heater according to claim 1, wherein: when the water tank is longitudinally arranged, the bottom wall body of the water tank is connected with the electric heater; when the water tank is transversely arranged, the left side wall body or the right side wall body of the water tank is connected with the electric heater.

10. An electric water heater according to claim 1, wherein: the temperature limiter works within 95 ℃.