Water-saving type full-automatic cold and hot dual-purpose purified electric water boiler
Patent Information
- Application Number
- CN202522440031.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-18
AI Technical Summary
[0005]针对现有技术的不足，本实用新型提供了一种节水型全自动冷热两用净化电开水器，具备了能够具有冷热两用效果的同时还能够根据实际场景的使用需求进行适应性切换，且还能起到一定的节水效果等优点，解决了现有电开水器无法满足不同场景下不同冷热水供应需求，以及常规净水器耗水量较大的问题
[0017]与现有技术相比，本实用新型提供了一种节水型全自动冷热两用净化电开水器，具备以下有益效果：
Smart Images
Figure CN224905296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric water heater technology, specifically a water-saving fully automatic hot and cold dual-use purified electric water heater. Background Technology
[0002] An electric water heater is a drinking water device that uses electrical energy to convert into heat energy to produce boiling water. It is mainly used to meet the demand for boiling water for a large number of people. It usually has a large capacity and can continuously supply boiling water, making it suitable for use in places such as schools, hospitals, and hotels.
[0003] In existing technologies, electric water heaters heat the water in a tank after an external water source is injected, stopping the heating process once the water reaches its boiling point. The tank then stores and maintains the water temperature, providing a continuous supply of hot water to meet user needs. However, most of these electric water heaters can only supply hot water and cannot provide cold water, limiting their applicability. Furthermore, existing fully automatic water purifiers cannot adequately meet the varying hot and cold water usage in different scenarios and consume a large amount of water, resulting in low water output during actual use. To address these issues, this application provides a water-saving, fully automatic hot and cold dual-purpose purified electric water heater. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a water-saving fully automatic hot and cold dual-use electric water purifier. It has the advantages of being able to provide both hot and cold water while also being able to adapt to the actual usage needs of different scenarios, and it also has a certain water-saving effect. This solves the problems of existing electric water purifiers being unable to meet the different hot and cold water supply needs in different scenarios, as well as the problem of conventional water purifiers consuming too much water.
[0006] (II) Technical Solution
[0007] To achieve the above-mentioned dual-use function of hot and cold water while adapting to the actual usage needs of the scenario and also achieving a certain water-saving effect, this utility model provides the following technical solution: a water-saving fully automatic hot and cold dual-use purified electric water heater, including an electric water heater shell, a main body component installed on the outer side of the electric water heater shell, a water outlet component installed on the inner side of the electric water heater shell, and a filter component connected to the inside of the water outlet component installed on the inner side of the electric water heater shell;
[0008] The water outlet assembly includes a support plate fixed inside the outer casing of the electric water heater. A housing is fixed to the top of the support plate, and an inner water tank is fixed to the inner bottom wall of the housing. An overflow hole is provided on the top of one side of the back of the inner water tank. Three water level monitoring probes are fixedly installed on the inner right side wall of the inner water tank, and a heating rod is fixedly installed on the inner right side wall of the inner water tank. An integrated circuit board is fixedly installed on the right side of the housing. Two temperature sensors are fixedly installed on the inner left side wall of the inner water tank. A drain pipe is fixed to the bottom of the inner water tank, passing sequentially through the bottom of the housing and the support plate. An overflow drain pipe is fixed to the bottom of the support plate. A hot water pipe is fixed to the bottom of one side of the back of the inner water tank. An electric three-way switching valve connected to the inside of the inner water tank is fixedly installed at the bottom of one side of the back of the inner water tank. A connecting pipe is fixedly installed at the end of the electric three-way switching valve that is in the same direction as the connection end of the inner water tank. A cold water pipe is fixedly installed at the end of the electric three-way switching valve that is perpendicular to the connection end of the inner water tank. An inlet pipe is fixedly installed at the bottom of the inner water tank. A three-way connecting valve is fixedly installed at the bottom end of the inlet pipe. A delivery pipe is fixedly installed at the end of the three-way connecting valve that is in the same direction as the connection end of the inlet pipe.
[0009] Furthermore, the main component includes a main control board fixedly installed on the front of the electric water heater housing. A control panel is fixedly installed on the front of the main control board, and two faucets are fixedly installed on the bottom of the main control board. A bottle support plate is fixedly installed on the front of the electric water heater housing. Inspection ports are provided on both the left and right sides of the electric water heater housing. An installation frame is fixed inside the inspection port. An inspection plate located inside the corresponding inspection port is detachably connected to the outside of the installation frame. A first detachable panel is detachably connected to the back of the electric water heater housing, and a second detachable panel is detachably connected to the back of the electric water heater housing.
[0010] Furthermore, the filtration assembly includes a base fixed to the bottom inner wall of the electric water heater housing. Two columns are fixed to the top of the base, and a top plate is fixed between the tops of the two columns. A pre-filter is fixedly installed at the bottom of the top plate. An input pipe is fixedly installed at the input end of the pre-filter, and an output pipe is fixedly installed at the output end of the pre-filter. A post-activated carbon filter is detachably connected to the top of the top plate, and a reverse osmosis filter is detachably connected to the top of the top plate. A sewage pipe is fixedly installed at the sewage discharge end of the reverse osmosis filter, and a flow-limiting valve communicating with its interior is fixedly installed on the sewage pipe. A fixed pipe is fixedly installed at the purified water output end of the reverse osmosis filter, and a high-pressure switch communicating with its interior is fixedly installed on the fixed pipe. The fixed pipe is connected to a diverter pipe via a three-way valve. A pressure gauge is fixedly installed on the front of the top plate, and a pressure tank is placed on the bottom inner wall of the electric water heater housing.
[0011] Furthermore, a central pipe is inserted and fixed to the outer side of the outer shell of the electric water heater, and two discharge pipes connected to the interior and with open tops are fixed to the outer side of the central pipe.
[0012] Furthermore, the drain pipe and the overflow pipe extend into the interior of the corresponding discharge pipe, and the top openings of the two discharge pipes are each fitted with annular rubber plugs located on the outside of the drain pipe and the overflow pipe, respectively. The end of the sewage pipe passes through the top of one of the annular rubber plugs and extends into the interior of the corresponding discharge pipe.
[0013] Furthermore, the back of the second detachable panel and the outer side of the electric water heater housing are both provided with input holes through which the input pipe can pass. The end of the output pipe away from the pre-filter is fixedly connected to the input end of the reverse osmosis filter. The last end of the three-way valve, which is fixedly installed with the fixed pipe and the diversion pipe, is fixedly connected to the input end of the post-activated carbon filter. The end of the diversion pipe away from the fixed pipe is fixedly installed at the input and output ends of the pressure tank. The probe of the pressure gauge passes through the outside of the reverse osmosis filter and is fixedly installed inside the reverse osmosis filter.
[0014] Furthermore, the ends of the connecting pipe and the hot water pipe both penetrate the outer side of the casing, the electric water heater shell, and the main control board, and are respectively fixedly connected to the input ends of the two faucets.
[0015] Furthermore, the water level monitoring probe, heating rod, and temperature sensor are all electrically connected to the integrated circuit board via wires. The end of the cold water pipe furthest from the electric three-way switching valve is fixedly connected to the last end of the three-way connecting valve. The end of the delivery pipe furthest from the three-way connecting valve is fixedly connected to the output end of the post-activated carbon filter.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a water-saving fully automatic hot and cold water purifier with the following advantages:
[0018] This water-saving, fully automatic hot and cold water purifier utilizes the combined use of the main components on the outside of the water heater's casing and the internal water outlet and filter components. It offers both hot and cold water capabilities and can adapt to different usage scenarios, while also conserving water. It can supply both hot and cold water or only hot water, enhancing its versatility and meeting diverse needs in various scenarios. Furthermore, it effectively filters the incoming water, ensuring extremely low impurity levels even in cold water conditions, guaranteeing drinking safety and significantly improving the practicality of the electric water heater. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 The structure of this utility model Figure 1 A schematic diagram of the rear cross-section;
[0021] Figure 3 The structure of this utility model Figure 2 A frontal view diagram;
[0022] Figure 4 The structure of this utility model Figure 1 Rear view diagram;
[0023] Figure 5 The structure of this utility model Figure 2 Schematic diagram of the connection structure of the middle base;
[0024] Figure 6 This is a top sectional view of the internal water tank connection structure in this utility model.
[0025] In the diagram: 1. Electric water heater casing; 201. Main control board; 202. Control panel; 203. Faucet; 204. Bottle tray; 205. Inspection port; 206. Mounting frame; 207. Inspection board; 208. First detachable panel; 209. Second detachable panel; 301. Support plate; 302. Housing; 303. Inner water tank; 304. Overflow hole; 305. Water level monitoring probe; 306. Heating rod; 307. Integrated circuit board; 308. Temperature sensor; 309. Drain pipe; 310. Overflow pipe; 311. Hot water pipe; 312. Electric three-way switching valve, 313 connecting pipe, 314 cold water pipe, 315 inlet water pipe, 316 three-way connecting valve, 317 delivery pipe, 401 base, 402 column, 403 top plate, 404 pre-filter, 405 input pipe, 406 output pipe, 407 post-activated carbon filter, 408 reverse osmosis filter, 409 sewage pipe, 410 flow restrictor valve, 411 fixed pipe, 412 high-pressure switch, 413 diversion pipe, 414 pressure gauge, 415 pressure tank, 501 central pipe, 502 discharge pipe. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1 to 6This utility model provides a technical solution: a water-saving fully automatic hot and cold dual-use purified electric water heater, including an electric water heater shell 1, a main body component installed on the outer side of the electric water heater shell 1, a water outlet component installed on the inner side of the electric water heater shell 1, and a filter component installed on the inner side of the electric water heater shell 1 that is connected to the inside of the water outlet component; through the coordinated use of the main body component on the outer side of the electric water heater shell 1 and the water outlet component and filter component inside, it can achieve both hot and cold water use while also being able to adapt to the actual usage needs of the scenario, and can also play a certain water-saving role. It can realize the needs of both hot and cold water use or the discharge of all hot water, improving the versatility of the electric water heater, enabling it to meet the different usage needs of different scenarios, and can effectively filter the incoming water to ensure that even in the case of cold water, the impurity content inside is extremely low, ensuring drinking safety, thereby effectively improving the practicality of the electric water heater.
[0028] In this embodiment, the water outlet component is a structure used for heating and discharging water.
[0029] like Figure 2 , Figure 3 and Figure 6 As shown, the water outlet assembly includes a support plate 301 fixed inside the outer casing 1 of the electric water heater. A housing 302 is fixed to the top of the support plate 301. An inner water tank 303 is fixed to the inner bottom wall of the housing 302. An overflow hole 304 is opened on the top of one side of the back of the inner water tank 303. Three water level monitoring probes 305 are fixedly installed on the inner right side wall of the inner water tank 303. A heating rod 306 is fixedly installed on the inner right side wall of the inner water tank 303. An integrated circuit board 307 is fixedly installed on the right side of the housing 302. Two temperature sensors 308 are fixedly installed on the inner left side wall of the inner water tank 303. A drain pipe 309 is fixedly installed at the bottom of the inner water tank 303, passing through the bottom of the housing 302 and the support plate 301 in sequence. An overflow drain pipe 310 is fixed to the bottom of the support plate 301. A hot water pipe 311 is fixed to the bottom of one side of the back of the inner water tank 303. An electric three-way switching valve 312 connected to the inside is fixed to the bottom of one side of the back of the inner water tank 303. A connecting pipe 313 is fixed to the end of the electric three-way switching valve 312 that is in the same direction as the connection end of the inner water tank 303. A cold water pipe 314 is fixed to the end of the electric three-way switching valve 312 that is perpendicular to the connection end of the inner water tank 303. An inlet pipe 315 is fixed to the bottom of the inner water tank 303. A three-way connecting valve 316 is fixed to the bottom end of the inlet pipe 315. A delivery pipe 317 is fixed to the end of the three-way connecting valve 316 that is in the same direction as the connection end of the inlet pipe 315.
[0030] It should be noted that the water level monitoring probe 305, the heating rod 306, and the temperature sensor 308 are all electrically connected to the integrated circuit board 307 via wires. Specifically, the wires pass through the outside of the housing 302 and extend to the integrated circuit board 307.
[0031] In this embodiment, the main component is a structure for allowing the electric water heater to be placed normally and to operate.
[0032] like Figure 1 and Figure 4 As shown, the main components include a main control board 201 fixedly installed on the front of the electric water heater housing 1, a control panel 202 fixedly installed on the front of the main control board 201, two faucets 203 fixedly installed at the bottom of the main control board 201, a bottle support plate 204 fixedly installed on the front of the electric water heater housing 1, and inspection ports 205 opened on both the left and right sides of the electric water heater housing 1. An installation frame 206 is fixedly installed inside the inspection port 205, and an inspection plate 207 located inside the corresponding inspection port 205 is detachably connected to the outside of the installation frame 206. A first detachable panel 208 is detachably connected to the back of the electric water heater housing 1, and a second detachable panel 209 is detachably connected to the back of the electric water heater housing 1.
[0033] It should be noted that the ends of the connecting pipe 313 and the hot water pipe 311 both penetrate the outer side of the housing 302, the electric water heater housing 1, and the main control board 201, and are respectively fixedly connected to the input ends of the two faucets 203. This allows the water inside the connecting pipe 313 and the hot water pipe 311 to be released or closed through the faucets 203. Furthermore, the outer side of the connecting pipe 313 and the hot water pipe 311 is fixedly connected to the penetration connection of the housing 302, the electric water heater housing 1, and the main control board 201, which can improve the stability of the pipeline.
[0034] In this embodiment, the filtration component is a structure used to effectively filter the incoming water and achieve a certain water-saving effect.
[0035] like Figure 2 , Figure 3 and Figure 5As shown, the filtration assembly includes a base 401 fixed to the inner bottom wall of the electric water heater housing 1. Two columns 402 are fixed to the top of the base 401. A top plate 403 is fixed between the tops of the two columns 402. A pre-filter 404 is fixedly installed at the bottom of the top plate 403. An inlet pipe 405 is fixedly installed at the inlet end of the pre-filter 404, and an outlet pipe 406 is fixedly installed at the outlet end of the pre-filter 404. A post-activated carbon filter 407 is detachably connected to the top of the top plate 403, and a reverse osmosis filter is detachably connected to the top of the top plate 403. The reverse osmosis filter 408 has a sewage pipe 409 fixedly installed at its sewage discharge end, and a flow limiting valve 410 connected to its interior is fixedly installed on the sewage pipe 409. The reverse osmosis filter 408 has a fixed pipe 411 fixedly installed at its purified water output end, and a high-pressure switch 412 connected to its interior is fixedly installed on the fixed pipe 411. The fixed pipe 411 is connected to a diverter pipe 413 through a three-way valve. A pressure gauge 414 is fixedly installed on the front of the top plate 403. A pressure tank 415 is placed on the inner bottom wall of the electric water heater shell 1.
[0036] It should be noted that a central pipe 501 is inserted and fixed to the outer side of the outer casing 1 of the electric water heater. Two discharge pipes 502, which are connected to the interior of the central pipe 501 and have open tops, are fixed to the outer side of the central pipe 501. The drain pipe 309 and the overflow pipe 310 extend into the interior of the corresponding discharge pipes 502, and annular rubber plugs located on the outer side of the drain pipe 309 and the overflow pipe 310, respectively, are inserted into the top openings of the two discharge pipes 502. The end of the sewage pipe 409 passes through one of the annular plugs. The top of the rubber plug extends into the interior of the corresponding discharge pipe 502, allowing water discharged from the sewage pipe 409, the drain pipe 309, and the overflow pipe 310 to enter the interior of the corresponding discharge pipe 502 and then be discharged through the central pipe 501. The central pipe 501 can extend directly into the sewer or be installed at a drainage point in the scene. The pre-filter 404 consists of three PP cotton filters, which are used for preliminary filtration of water. This is a publicly available filtration technology, so it will not be described in detail.
[0037] In addition, the back of the second detachable panel 209 and the outer side of the electric water heater housing 1 are provided with input holes for the input pipe 405 to pass through, so that the input pipe 405 can be extended into the interior of the electric water heater housing 1 for installation. The different opening methods can meet the usage needs of different scenarios. The outside of the input pipe 405 is also fixedly installed with a water pump connected to its interior, so as to facilitate the stable delivery of water and provide power for the entire water purification system. The end of the output pipe 406 away from the pre-filter 404 is fixedly connected to the input end of the reverse osmosis filter 408, so that the water inside the output pipe 406 can enter the interior of the reverse osmosis filter 408. The reverse osmosis filter 408 can be an RO membrane reverse osmosis filtration structure. It continuously filters the externally input water and concentrates the filtered water in the middle of the reverse osmosis filter element before discharging it. The water in the outer ring is "sewage" and is discharged through the sewage pipe 409.
[0038] Meanwhile, the last end of the three-way valve, which is fixedly installed with the fixed pipe 411 and the diversion pipe 413, is fixedly connected to the input end of the post-activated carbon filter 407. This allows water inside the fixed pipe 411 to be transported to the diversion pipe 413 and the post-activated carbon filter 407 respectively through the three-way valve. The end of the diversion pipe 413 away from the fixed pipe 411 is fixedly installed at the input and output ends of the pressure tank 415. The pressure tank 415 is usually composed of a tank body, a rubber diaphragm or capsule, and inlet and outlet ports. The inlet and outlet ports are the input and output ends of the pressure tank 415. When water is needed, the purified water inside the pressure tank 415 is squeezed out by compressed air. At the same time, the air pressure inside the tank decreases. After receiving the air pressure signal, the water purification system starts the water pump to produce water into the tank. It automatically stops when the water is full and starts again when the water is used up. This design not only ensures the stability of the water flow but also extends the service life of the water purifier and reduces the wear and tear of the equipment. This is a publicly available technology and will not be described in detail.
[0039] It should also be noted that the probe of pressure gauge 414 passes through the outside of reverse osmosis filter 408 and is fixedly installed inside reverse osmosis filter 408, so that pressure gauge 414 can monitor the internal pressure of reverse osmosis filter 408. High pressure switch 412 is a liquid pressure switch. The working principle of liquid pressure switch is based on fluid mechanics. Liquid pressure switch is mainly composed of spring, piston, air bag, guide rod, electrical contact, etc. When the pressure change in the pipe causes the air pressure in the air bag to change, the air pressure in the air bag acts on the piston, changing the position of the piston. When the position of the piston reaches the trigger position specified by the switch, the circuit of the switch will be triggered to realize the function of circuit control.
[0040] It should also be noted that the end of the cold water pipe 314 furthest from the electric three-way switching valve 312 is fixedly connected to the last end of the three-way connecting valve 316, and the end of the delivery pipe 317 furthest from the three-way connecting valve 316 is fixedly connected to the output end of the post-activated carbon filter 407. This allows the water that has completed the filtration process through the post-activated carbon filter 407 to be transported through the delivery pipe 317, and then transported through the three-way connecting valve 316 to the inside of the cold water pipe 314 or the inlet pipe 315, thus completing the water transport process.
[0041] The working principle of the above embodiments is as follows:
[0042] (1) When using this electric water heater to draw water, the external water source is input into the pre-filter 404 through the input pipe 405 for preliminary filtration, and then transported to the reverse osmosis filter 408 through the output pipe 406 for deep filtration. The sewage inside the reverse osmosis filter 408 is discharged into the corresponding discharge pipe 502 through the sewage pipe 409. Under the restriction of the flow limiting valve 410, the discharged sewage can be restricted, thereby increasing the pressure inside the reverse osmosis filter 408 appropriately. This promotes the water inside to be filtered more quickly by the internal reverse osmosis filter element and move to the middle of the filter element, and finally enter the fixed pipe 411. Under the restriction of the flow limiting valve 410, the total amount of discharged sewage can also be limited, so that the sewage can only be filtered through the internal reverse osmosis filter element under the restriction, thereby saving water by reducing the amount of sewage discharged. The filtered clean water is discharged through the fixed pipe. Water 411 is supplied to the post-activated carbon filter 407 and the diversion pipe 413 via a three-way valve. The water in the diversion pipe 413 is stored in the pressure tank 415, while the filtered water in the post-activated carbon filter 407 is output through the delivery pipe 317. When the pressure tank 415 is full, it applies resistance to the incoming water, which is then transmitted to the fixed pipe 411 through the diversion pipe 413. This resistance is detected by the high-pressure switch 412, which shuts off the water inlet, preventing the entire filtration system from continuing to operate. This allows the water in the pressure tank 415 to be used first, preventing excessive pressure and potential safety accidents. When the filtration system is shut off, the water in the pressure tank 415 is output through the diversion pipe 413. Since the fixed pipe 411 is full, the water in the diversion pipe 413 directly enters the post-activated carbon filter 407 for filtration before being transported to the inner water tank 303 through the delivery pipe 317.
[0043] (2) During the transportation process, the water inside the delivery pipe 317 is diverted through the three-way connecting valve 316. Part of it is delivered to the inner water tank 303 through the inlet pipe 315. The heating rod 306 can be activated to heat the water inside the inner water tank 303. Under the action of the temperature sensor 308, the heating rod 306 can be automatically activated to heat the water when the temperature inside the inner water tank 303 drops to the preset value. Under the action of the water level monitoring probe 305, the water level inside the inner water tank 303 can be monitored at high, medium and low levels, which facilitates reminders on the control panel 202. Under the action of the overflow hole 304, the overflowing water inside the inner water tank 303 can be discharged and flow into the inner tank 302. The water is transported through the overflow drain pipe 310 to the corresponding discharge pipe 502 and then discharged through the central pipe 501. The other water diverted by the three-way connecting valve 316 enters the cold water pipe 314. When the electric three-way switching valve 312 connects the inside of the cold water pipe 314 and the connecting pipe 313, the water inside the cold water pipe 314 can be used directly by opening the corresponding faucet 203. In scenarios with high hot water usage, such as in boarding schools, activating the electric three-way switching valve 312 connects the inside of the connecting pipe 313 directly to the inside of the inner water tank 303, allowing both faucets 203 to discharge hot water, facilitating adaptation to different usage scenarios.
[0044] Compared with existing technologies, this water-saving fully automatic hot and cold dual-use electric water heater, through the coordinated use of the main components on the outer shell 1 and the internal water outlet and filter components, can achieve both hot and cold water supply while adapting to the actual usage needs of different scenarios. It also has a certain water-saving effect, enabling the use of both hot and cold water or only hot water, thus improving the versatility of the electric water heater. It can meet the different usage needs of different scenarios and effectively filter the incoming water to ensure that even in the case of cold water, the impurity content is extremely low, ensuring drinking safety. This effectively improves the practicality of the electric water heater and solves the problems of existing electric water heaters being unable to meet different hot and cold water supply needs in different scenarios, as well as the large water consumption of conventional water purifiers.
[0045] All electrical components mentioned in this article are electrically connected to the main controller and power supply. The provision of power supply is common knowledge in the field. The main controller can be a conventional known device such as a PLC programmable controller, which can be implemented by a person skilled in the art through simple programming. All of these are existing public power connection technologies and will not be described in detail in this article.
[0046] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A water-saving fully automatic hot and cold water purifier, comprising an electric water heater shell (1), characterized in that: The outer side of the electric water heater shell (1) is equipped with a main body assembly, the inner side of the electric water heater shell (1) is equipped with a water outlet assembly, and the inner side of the electric water heater shell (1) is equipped with a filter assembly that is connected to the inside of the water outlet assembly. The water outlet assembly includes a support plate (301) fixed inside the outer shell (1) of the electric water heater. A housing (302) is fixed to the top of the support plate (301). An inner water tank (303) is fixed to the inner bottom wall of the housing (302). An overflow hole (304) is provided on the top of one side of the back of the inner water tank (303). Three water level monitoring probes (305) are fixedly installed on the inner right side wall of the inner water tank (303). A heating rod (306) is fixedly installed on the inner right side wall of the inner water tank (303). An integrated circuit board (307) is fixedly installed on the right side of the housing (302). Two temperature sensors (308) are fixedly installed on the inner left side wall of the inner water tank (303). A drain pipe (309) is fixedly installed at the bottom of the inner water tank (303) and passes through the bottom of the housing (302) and the support plate (301). 2) The bottom of the inner water tank (303) is fixed with an overflow drain pipe (310) that passes through the bottom of the support plate (301). The bottom of the back side of the inner water tank (303) is fixed with a hot water pipe (311). The bottom of the back side of the inner water tank (303) is fixed with an electric three-way switching valve (312) that communicates with its interior. The end of the electric three-way switching valve (312) that is in the same direction as the connection end of the inner water tank (303) is fixed with a connecting pipe (313). The end of the electric three-way switching valve (312) that is perpendicular to the connection end of the inner water tank (303) is fixed with a cold water pipe (314). The bottom of the inner water tank (303) is fixed with an inlet pipe (315). The bottom end of the inlet pipe (315) is fixed with a three-way connecting valve (316). The end of the three-way connecting valve (316) that is in the same direction as the connection end of the inlet pipe (315) is fixed with a delivery pipe (317).
2. The water-saving fully automatic hot and cold water purifier according to claim 1, characterized in that: The main components include a main control board (201) fixedly installed on the front of the electric water heater housing (1), a control panel (202) fixedly installed on the front of the main control board (201), two faucets (203) fixedly installed at the bottom of the main control board (201), a bottle holder (204) fixedly installed on the front of the electric water heater housing (1), and inspection ports (205) opened on both the left and right sides of the electric water heater housing (1). An installation frame (206) is fixedly installed on the inner side of the inspection port (205), and an inspection plate (207) located inside the corresponding inspection port (205) is detachably connected to the outer side of the installation frame (206). A first detachable panel (208) is detachably connected to the back of the electric water heater housing (1), and a second detachable panel (209) is detachably connected to the back of the electric water heater housing (1).
3. The water-saving fully automatic hot and cold water purifier according to claim 2, characterized in that: The filtration assembly includes a base (401) fixed to the inner bottom wall of the electric water heater housing (1). Two columns (402) are fixed to the top of the base (401). A top plate (403) is fixed between the tops of the two columns (402). A pre-filter (404) is fixedly installed at the bottom of the top plate (403). An inlet pipe (405) is fixedly installed at the inlet end of the pre-filter (404). An outlet pipe (406) is fixedly installed at the outlet end of the pre-filter (404). A post-activated carbon filter (407) is detachably connected to the top of the top plate (403). A reverse osmosis filter is detachably connected to the top of the top plate (403). The filter (408) has a sewage pipe (409) fixedly installed at its sewage discharge end, and a flow limiting valve (410) connected to its interior is fixedly installed on the sewage pipe (409). The purified water output end of the reverse osmosis filter (408) has a fixed pipe (411) fixedly installed, and a high-pressure switch (412) connected to its interior is fixedly installed on the fixed pipe (411). The fixed pipe (411) is connected to a diverter pipe (413) through a three-way valve. A pressure gauge (414) is fixedly installed on the front of the top plate (403). A pressure tank (415) is placed on the inner bottom wall of the electric water heater shell (1).
4. A water-saving fully automatic hot and cold water purifier according to claim 3, characterized in that: A central pipe (501) is inserted through and fixed to the outside of the outer shell (1) of the electric water heater. Two discharge pipes (502) are fixed to the outside of the central pipe (501) and are connected to its interior and have open tops.
5. A water-saving fully automatic hot and cold water purifier according to claim 4, characterized in that: The drain pipe (309) and overflow pipe (310) extend into the interior of the corresponding discharge pipe (502), and the top openings of the two discharge pipes (502) are each fitted with annular rubber plugs located on the outside of the drain pipe (309) and overflow pipe (310), respectively. The end of the sewage pipe (409) passes through the top of one of the annular rubber plugs and extends into the interior of the corresponding discharge pipe (502).
6. A water-saving fully automatic hot and cold water purifier according to claim 3, characterized in that: The back of the second detachable panel (209) and the outer side of the electric water heater housing (1) are provided with input holes through which the input pipe (405) can pass. The end of the output pipe (406) away from the pre-filter (404) is fixedly connected to the input end of the reverse osmosis filter (408). The last end of the three-way valve, which is fixedly installed with the fixed pipe (411) and the diversion pipe (413), is fixedly connected to the input end of the post-activated carbon filter (407). The end of the diversion pipe (413) away from the fixed pipe (411) is fixedly installed at the input and output ends of the pressure tank (415). The probe of the pressure gauge (414) passes through the outside of the reverse osmosis filter (408) and is fixedly installed inside the reverse osmosis filter (408).
7. A water-saving fully automatic hot and cold water purifier according to claim 2, characterized in that: The ends of the connecting pipe (313) and the hot water pipe (311) both penetrate the outer side of the casing (302), the electric water heater shell (1), and the main control board (201), and are respectively fixedly connected to the input ends of the two faucets (203).
8. A water-saving fully automatic hot and cold water purifier according to claim 3, characterized in that: The water level monitoring probe (305), heating rod (306), and temperature sensor (308) are all electrically connected to the integrated circuit board (307) via wires. The end of the cold water pipe (314) away from the electric three-way switching valve (312) is fixedly connected to the last end of the three-way connecting valve (316). The end of the delivery pipe (317) away from the three-way connecting valve (316) is fixedly connected to the output end of the post-activated carbon filter (407).