Water electrolyzer

Abstract

A water electrolysis machine is characterized by comprising a shell, a waterway plate, a resin module, a liquid storage tank, a first salt tank, a second salt tank and an electrolytic bath, the resin module is used for softening the hardness of tap water, and the first salt tank is used for storing cleaning salt; the second salt box is used for storing electrolyte salt; one path of tap water enters the resin module, and the other path enters the resin module after passing through the second salt box; a first water outlet of the resin module leads to the wastewater port, a second water outlet leads to the liquid storage tank, and a third water outlet leads to the first salt tank. All the modules are assembled in a detachable structure, consumable replacement and maintenance are convenient, the overall size can be made small, placement is convenient, the integrated waterway board design is adopted, assembly is convenient, and the situation that pipelines are bent due to the fact that hoses are not arranged is avoided.

Description

Technical Field

[0001] The present invention relates to a water electrolysis device, and in particular to a compact water electrolysis device with convenient replacement of modules. Background Art

[0002] An electrolyzer is a device that electrolyzes a saltwater solution through an electrolytic cell. It is commonly used in cleaning machines (such as dishwashers) and other products that require decontamination or sterilization. The electrolytic cell generally uses a cation exchange membrane to separate the anode and cathode chambers in the electrolytic cell, forming a two-chamber electrolytic cell. After electrolysis, an alkaline solution (alkaline water) is obtained in the cathode chamber. Using sodium chloride as the electrolyte, the alkaline water obtained has a relatively strong decontamination ability. Within a certain temperature range, the decontamination ability of alkaline water continues to increase with increasing temperature; acidic water has a strong antiseptic and sterilization function, which is convenient for disinfecting commonly used items. For example, in the field of kitchen cleaning machines, sodium carbonate solution systems are mostly electrolyzed to prepare alkaline water for use in the cleaning process.

[0003] Currently, electrolyzed water machines have the following shortcomings: First, in order to meet a certain lifespan, the overall size is relatively large, making it inconvenient to install and place. After the size of the entire machine is reduced, the consumable parts involved need to be replaced regularly, which brings a lot of inconvenience; second, the water channels involved in existing electrolyzed water systems are often connected by a large number of hoses, which are prone to bends and blockages in the pipes and connectors, causing water sealing problems; third, the internal liquid storage tank and electrolytic cell are fixed and cannot be disassembled, making maintenance and replacement more cumbersome and requiring dedicated personnel and professional tools; finally, some electrolyzed water machines also involve the softening of tap water, which requires the use of a resin module. Due to size limitations, the resin is small in size and short in lifespan, so backwashing is required to extend its lifespan. However, the current backwashing method for the resin cannot fully backwash, affecting its service life. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a compact water electrolyzer without a hose in view of the above technical status quo.

[0005] The second technical problem to be solved by the present invention is to provide an electrolyzer with modular built-in components that is easy to replace and maintain in response to the above-mentioned technical status quo.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: an electrolyzer for water, characterized by comprising a housing having an inner cavity;

[0007] A waterway plate, disposed at the bottom of the shell and having a waterway channel inside;

[0008] The resin module is used to soften the hardness of tap water and is detachably mounted in the inner cavity of the housing and has a resin water inlet port and a resin water outlet port at the bottom that are connected to the waterway plate;

[0009] The liquid storage tank is detachably arranged in the inner cavity of the shell and has a first water inlet port, a first water outlet port and a first water return port at the bottom thereof which are sealed and connected to the waterway plate;

[0010] A first salt box is detachably arranged in the inner cavity of the housing and has a second water inlet port and a second water outlet port at the bottom thereof which are sealed and connected to the waterway plate. The first salt box is used to store cleaning salt;

[0011] A second salt tank is detachably provided in the inner cavity of the housing and has a second water inlet port, a second water outlet port and a second water return port at the bottom thereof which are sealed and connected to the waterway plate, and is used for storing electrolyte salt; and

[0012] The electrolytic cell is detachably arranged in the inner cavity of the shell and has an anode water outlet port, an anode water inlet port, a cathode water outlet port, and a cathode water inlet port at the bottom that are sealed and connected to the waterway plate;

[0013] Tap water enters the resin module in one way and enters the resin module after passing through the second salt tank in the other way; the water outlet of the resin module leads to the wastewater port in the first way, the liquid storage tank in the second way, and the first salt tank in the third way.

[0014] Furthermore, the waterway plate has a tap water inlet port, a waste water port, a resin water inlet connection port, a resin water outlet connection port, an anode water inlet connection port, an anode water outlet connection port, a cathode water inlet connection port, a cathode water outlet connection port, a first water inlet connection port, a first water outlet connection port, a first return water connection port, a second water inlet connection port, a second water outlet connection port, a third water inlet connection port, a third water outlet connection port, and a second return water connection port; the aforementioned tap water inlet port and waste water port are exposed to the aforementioned shell; the aforementioned first water outlet connection port is connected to the cathode water inlet connection port through the first waterway channel inside the waterway plate; the aforementioned first return water connection port is connected to the cathode water outlet connection port through the second waterway channel inside the waterway plate; the aforementioned third water outlet connection port is connected to the anode water inlet connection port through the third waterway channel inside the waterway plate; the aforementioned second return water connection port is connected to the anode water outlet connection port through the fourth waterway channel inside the waterway plate;

[0015] The aforementioned resin water inlet connection port is sealed and connected to the resin water inlet port, and the aforementioned resin water outlet connection port is sealed and connected to the resin water outlet port;

[0016] The aforementioned first water inlet connection port is sealedly connected to the first water inlet port, the aforementioned first water outlet connection port is sealedly connected to the first water outlet port, and the aforementioned first water return connection port is sealedly connected to the first water return port;

[0017] The aforementioned second water inlet connection port is sealedly connected to the second water inlet port, and the aforementioned second water outlet connection port is sealedly connected to the second water outlet port;

[0018] The aforementioned third water inlet connection port, third water outlet connection port, and second water return connection port are sealedly connected to the third water inlet port, third water outlet port, and third water return port respectively;

[0019] The aforementioned anode water outlet connection port, anode water inlet connection port, cathode water outlet connection port, and cathode water inlet connection port are sealed and connected to the anode water outlet port, anode water inlet port, cathode water outlet port, and cathode water inlet port respectively.

[0020] The first water channel is provided with a first water pump, and the third water channel is provided with a second water pump.

[0021] A first solenoid valve is provided on the water channel between the resin water outlet connection port and the first water inlet connection port;

[0022] A second solenoid valve is provided on the water channel between the resin water outlet connection port and the third water inlet connection port;

[0023] A third solenoid valve is provided on the water passage from the resin water outlet connection port to the wastewater port;

[0024] A fourth solenoid valve is provided on the water channel between the second water outlet connection port and the resin water inlet connection port.

[0025] Preferably, the shell includes an outer shell and an inner shell arranged in the inner cavity of the outer shell, the inner shell has a first cavity for limiting the resin module, a second cavity for limiting the first salt box, a third cavity for limiting the second salt box, a fourth cavity for limiting the liquid storage tank and a fifth cavity for limiting the electrolytic cell; the waterway plate is arranged at the bottom of the outer shell, and the inner shell is limited above the waterway plate.

[0026] The detachable assembly structure of the resin module and the shell is preferably arranged as follows: the inner shell is provided with a first inverted L-shaped limiting rib radially protruding from the inner wall of the first cavity port, and correspondingly, the outer wall of the resin module is provided with a second limiting rib that cooperates with the aforementioned first limiting rib.

[0027] The assembly structure of the liquid storage tank and the waterway plate is preferably arranged as follows: the first water inlet port of the liquid storage tank is provided with a sealing sleeve, a slider and a spring in sequence from the outside to the inside, and the outer periphery of the slider and the inner wall of the first water inlet port have a flow gap for water to flow through, and the spring acts on the slider and forces the slider to approach the sealing sleeve so that the first water inlet port is in a sealed state; the first water inlet port is provided with a convex column that can extend into the sealing sleeve, the convex column is axially hollow and can allow water to flow through, and a notch groove is formed on the upper end of the convex column. When the liquid storage tank is assembled on the waterway plate, the convex column overcomes the spring force to push the slider upward, so that the waterway can maintain communication with the liquid storage tank through the notch groove of the convex column through the flow gap.

[0028] The resin module is provided with a first assembly end face and a second assembly end face at each end. The first assembly end face has a resin water inlet port and a resin water outlet port, and the second assembly end face has a backwash water inlet port that can be sealed and assembled with the resin water inlet connection port, and a backwash water outlet port that can be sealed and assembled with the resin water outlet connection port. When in the backwash state, the resin module is unplugged, turned upside down, and then inserted into the electrolyzer. Tap water brings brine into the resin module. After a period of time, the resin is fully exposed to the brine, and the wastewater is discharged. The two ends of the resin module can be swapped to achieve reverse flow of the water path combined with brine immersion for a more complete backwash. This can be achieved simply by plugging and unplugging, without the need for additional valves and pumps to change the water path.

[0029] To facilitate insertion and removal, the following optimized design was implemented: a removable end cap is provided on the second assembly end face of the resin module, covering the resin inlet and outlet ports. A handle is provided on the upper end face of the end cap, which has a reversible groove for accommodating the handle.

[0030] Compared with existing technologies, the advantages of this invention are: the detachable structure of each module facilitates the replacement of consumables and maintenance, making the overall volume smaller and easier to place. The integrated waterway design facilitates assembly and eliminates the need for hoses to cause pipe bends. After the liquid tank is used to produce water, the user can remove the liquid tank and replace it with an empty one to prepare new electrolyzed water, thus maintaining normal water production. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of an embodiment.

[0032] Figure 2 for Figure 1 Exploded diagram of .

[0033] Figure 3 This is an enlarged view of the resin module.

[0034] Figure 4 for Figure 3 Exploded diagram of .

[0035] Figure 5 This is a structural diagram of the resin module from another perspective.

[0036] Figure 6 Enlarged perspective cutaway view of the fluid reservoir.

[0037] Figure 7 Schematic diagram of the liquid storage tank after being assembled to the waterway plate.

[0038] Figure 8 This is a diagram of the internal piping connections of the embodiment. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0040] Combine Figure 1 、 Figure 2 and Figure 8 As shown, the water electrolyzer includes a housing 1 , a waterway plate 2 , a resin module 4 , a liquid storage tank 5 , a first salt tank 6 , a second salt tank 3 and an electrolytic cell 7 .

[0041] The shell 1 has an internal cavity; the shell 1 in this embodiment includes an outer shell 11 and an inner shell 12 arranged in the inner cavity of the outer shell 11, and the inner shell 12 has a first cavity 14 for limiting the resin module 4, a second cavity 16 for limiting the first salt box 6, a third cavity 13 for limiting the second salt box 3, a fourth cavity 15 for limiting the liquid storage tank 5 and a fifth cavity 17 for limiting the electrolytic cell 7; the waterway plate 2 is arranged at the bottom of the outer shell 11, and the inner shell 12 is limited above the waterway plate 2.

[0042] like Figure 2 As shown, the waterway plate 2 is arranged at the bottom of the shell 1 and has a waterway channel inside. The waterway plate 2 has a tap water inlet port, a wastewater port 23, a resin water inlet connection port 41, a resin water outlet connection port 42, an anode water inlet connection port 71, an anode water outlet connection port 72, a cathode water inlet connection port 73, a cathode water outlet connection port 74, a first water inlet connection port 51, a first water outlet connection port 52, a first return water connection port 53, a second water inlet connection port 61, a second water outlet connection port 62, a third water inlet connection port 31, a third water outlet connection port 32, and a second return water connection port 33; the tap water inlet port in this embodiment includes two independent connection ports 21 and a connection port 22. The tap water inlet port and the waste water port 23 are exposed to the shell 1; the first water outlet connection port 52 is connected to the cathode water inlet connection port 73 through the first water channel 24 inside the waterway plate 2; the first return water connection port 53 is connected to the cathode water outlet connection port 74 through the second water channel 26 inside the waterway plate 2; the third water outlet connection port 32 is connected to the anode water inlet connection port 71 through the third water channel 25 inside the waterway plate 2; the second return water connection port 33 is connected to the anode water outlet connection port 72 through the fourth water channel 27 inside the waterway plate 2.

[0043] Combine Figures 3 to 5 As shown, the resin module 4 is used to soften the hardness of tap water. It is detachably arranged in the inner cavity of the shell 1 and has a resin water inlet port 4c and a resin water outlet port 4d at the bottom, which are respectively sealed and connected to the resin water inlet connection port 41 and the resin water outlet connection port 42 of the waterway plate 2.

[0044] The resin module disassembly and assembly structure is as follows: the inner shell 12 is located at the inner wall of the first cavity 14, and a first limiting rib 141 in the shape of an inverted L is radially protruded. Correspondingly, a second limiting rib 81 is protruded on the outer wall of the resin module 4 to limit the first limiting rib 141. In this embodiment, the second limiting rib 81 is formed on one side of the end cover 8.

[0045] During assembly, the resin module 4 is inserted into the first cavity and then rotated; during disassembly, the first limiting rib and the second limiting rib are rotated in the opposite direction to dislocate them, and the resin module 4 can be easily pulled out.

[0046] The resin module 4 has a first assembly end face and a second assembly end face formed at both ends respectively. The first assembly end face has a resin water inlet port 4c and a resin water outlet port 4d. The second assembly end face has a backwash water inlet port 4a that can be sealed and assembled with the resin water inlet connection port 41 and a backwash water outlet port 4b that can be sealed and assembled with the resin water outlet connection port 42.

[0047] The second assembly end face of the resin module 4 is removably provided with an end cap 8, which covers the resin water inlet port 4c and the resin water outlet port 4d. The upper end face of the end cap 8 is provided with a handle 83, which can be flipped over. The upper end face of the end cap 8 has a groove 82, which accommodates the handle 83.

[0048] The detachable structures of the liquid storage tank 5, the first salt tank 6, the second salt tank 3 and the electrolytic cell 7 are arranged with reference to the resin module.

[0049] Combine Figure 6 、 Figure 7 and Figure 8 As shown, the liquid storage tank 5 is detachably mounted within the inner cavity of the housing 1 and has a first water inlet port 54, a first water outlet port 55, and a first water return port 56 at its bottom, which are sealedly connected to the first water inlet connection port 51, the first water outlet connection port 52, and the first water return connection port 53 of the waterway plate 2, respectively. The top of the liquid storage tank 5 has an exhaust port 57 for exhausting hydrogen. At the same time, after the liquid storage tank is pulled out, the end cap can be removed to pour out the electrolyzed water for use.

[0050] The first water inlet port 54 of the liquid storage tank 5 is equipped, from the outside inward, with a sealing sleeve 5c, a slider 5b, and a spring 5a. A water gap 5f is defined between the outer periphery of the slider 5b and the inner wall of the first water inlet port 54, allowing water to flow through. The spring 5a acts on the slider 5b, forcing it toward the sealing sleeve 5c, thereby sealing the first water inlet port 54. The first water inlet port 54 also features a protrusion 5d that extends into the sealing sleeve 5c. This protrusion 5d is axially hollow, allowing water to flow through it. A notch 5e is formed at its upper end. When the liquid storage tank 5 is assembled with the waterway plate 2, the protrusion 5d overcomes the elastic force of the spring 5a, lifting the slider 5b upward. This allows the water to flow through the notch 5e in the protrusion 5d and maintain communication with the liquid storage tank 5 through the water gap 5f. The connections between the resin module 4, the first salt tank 6, the second salt tank 3, and the electrolytic cell 7 and the waterway plate 2 all follow this same structural arrangement and will not be described in detail here.

[0051] The first salt tank 6 is detachably provided in the inner cavity of the shell 1 and has a second water inlet port 6a and a second water outlet port 6b at the bottom, which are respectively sealed and connected to the second water inlet connection port 61 and the second water outlet connection port 62 of the waterway plate 2. The first salt tank 6 is used to store cleaning salt, and sodium chloride is used in this embodiment. The resin module softens the tap water (high hardness water) of the user's home into low hardness water for electrolysis, because low hardness water is required for electrolysis. The resin module has a lifespan and adsorbs the magnesium ions during operation. When the lifespan is reached, it needs to be rinsed with a sodium chloride solution, that is, the magnesium ions in the resin are replaced with sodium ions. The first salt tank can provide sodium ions.

[0052] The second salt tank 3 is detachably disposed in the inner cavity of the shell 1 and has a third water inlet port 3a, a third water outlet port 3b, and a third water return port 3c at the bottom, which are respectively sealed to the third water inlet connection port 31, the third water outlet connection port 32, and the second return water connection port 33 of the waterway plate 2. The second salt tank 3 is used to store electrolyte salt, and in this embodiment, sodium chloride or sodium carbonate can be used.

[0053] In this embodiment, filter screens are provided inside the first salt box and the second salt box to filter salt crystals and prevent pipelines from being blocked.

[0054] The electrolytic cell 7 is detachably mounted within the inner cavity of the housing 1 and has an anode outlet port, an anode inlet port, a cathode outlet port, and a cathode inlet port at its bottom, which are respectively sealed and connected to the anode outlet port 72, anode inlet port 71, cathode outlet port 74, and cathode inlet port 73 of the waterway plate 2. The electrolytic cell 7 in this embodiment is internally divided into an anode chamber and a cathode chamber, each of which is provided with an anode sheet, a cathode sheet, and a diaphragm. The diaphragm is secured by a frame, and the anode sheet and cathode sheet are directly inserted therein.

[0055] A first water pump 95 is provided on the first water channel 24, and a second water pump 96 is provided on the third water channel 25. A first solenoid valve 91 is provided on the water channel between the resin water outlet connection port 42 and the first water inlet connection port 51; a second solenoid valve 92 is provided on the water channel between the resin water outlet connection port 42 and the third water inlet connection port 31; a third solenoid valve 93 is provided on the water channel from the resin water outlet connection port 42 to the wastewater port 23; and a fourth solenoid valve 94 is provided on the water channel between the second water outlet connection port 62 and the resin water inlet connection port 41.

[0056] like Figure 8 As shown, tap water enters the resin module 4 in one way and enters the resin module 4 after passing through the second salt tank 3 in another way; the water outlet of the resin module 4 first leads to the wastewater port 23, second leads to the liquid storage tank 5, and third leads to the first salt tank 6.

[0057] Normal water production process of electrolyzer:

[0058] During the water production process, the third and fourth solenoid valves are closed. If the liquid tank is short of water, the first solenoid valve opens, allowing tap water to flow through the resin module and into the liquid tank. If the second salt tank is short of water, the second solenoid valve opens, allowing tap water to flow through the resin module and into the second salt tank. To begin electrolysis, the first and second water pumps operate to circulate electrolysis. Once the preparation is complete, the liquid tank is filled with electrolyzed water at the appropriate pH.

[0059] Backwashing of the resin module in the electrolyzer: When in the backwash state, the user is reminded to backwash. The user unplugs the resin module, turns it upside down, and then inserts it into the electrolyzer. The first and second solenoid valves are closed, and the third and fourth solenoid valves are opened. After the tap water passes through the first salt tank, the brine is brought into the resin module through the fourth solenoid valve. The third and fourth solenoid valves are closed. After a period of time, the resin is fully in contact with the brine, and then the third and fourth solenoid valves are opened again to discharge the waste water.

Claims

1. A water electrolysis machine, characterized in that include A housing (1) having a cavity; A waterway plate (2) is provided at the bottom of the housing (1) and has a waterway channel therein; The resin module (4) is used to soften the hardness of tap water and is detachably arranged in the inner cavity of the housing (1) and has a resin water inlet port (4c) and a resin water outlet port (4d) connected to the waterway plate (2) at the bottom; A liquid storage tank (5) is detachably arranged in the inner cavity of the housing (1) and has a first water inlet port (54), a first water outlet port (55) and a first water return port (56) at the bottom thereof, which are sealedly connected to the waterway plate (2); A first salt box (6) is detachably arranged in the inner cavity of the housing (1) and has a second water inlet port and a second water outlet port at the bottom thereof, which are sealedly connected to the waterway plate (2). The first salt box (6) is used to store cleaning salt; A second salt box (3) is detachably arranged in the inner cavity of the housing (1) and has a second water inlet port, a second water outlet port, and a second water return port at the bottom thereof, which are sealedly connected to the waterway plate (2). The second salt box (3) is used for storing electrolyte salt; as well as The electrolytic cell (7) is detachably arranged in the inner cavity of the housing (1) and has an anode water outlet port, an anode water inlet port, a cathode water outlet port, and a cathode water inlet port at the bottom thereof, which are sealed and connected to the waterway plate (2); The tap water enters the resin module (4) in one path and enters the resin module (4) after passing through the second salt tank (3) in another path; the water outlet of the resin module (4) first leads to the wastewater port (23), second leads to the liquid storage tank (5), and third leads to the first salt tank (6).

2. The water electrolyzer according to claim 1, characterized in that The waterway plate (2) has a tap water inlet port, a waste water port (23), a resin water inlet connection port (41), a resin water outlet connection port (42), an anode water inlet connection port (71), an anode water outlet connection port (72), a cathode water inlet connection port (73), a cathode water outlet connection port (74), a first water inlet connection port (51), a first water outlet connection port (52), a first return water connection port (53), a second water inlet connection port (61), a second water outlet connection port (62), a third water inlet connection port (31), a third water outlet connection port (32), and a second return water connection port (33); the aforementioned tap water inlet port, waste water port The housing (1) is exposed through the opening (23); the first water outlet connection port (52) is communicated with the cathode water inlet connection port (73) through the first water channel (24) inside the water channel plate (2); the first water return connection port (53) is communicated with the cathode water outlet connection port (74) through the second water channel (26) inside the water channel plate (2); the third water outlet connection port (32) is communicated with the anode water inlet connection port (71) through the third water channel (25) inside the water channel plate (2); the second water return connection port (33) is communicated with the anode water outlet connection port (72) through the fourth water channel (27) inside the water channel plate (2); The aforementioned resin water inlet connection port (41) is sealedly connected to the resin water inlet port (4c), and the aforementioned resin water outlet connection port (42) is sealedly connected to the resin water outlet port (4d); The aforementioned first water inlet connection port (51) is sealedly connected to the first water inlet port (54), the aforementioned first water outlet connection port (52) is sealedly connected to the first water outlet port (55), and the aforementioned first water return connection port (53) is sealedly connected to the first water return port (56); The aforementioned second water inlet connection port (61) is sealedly connected to the second water inlet port, and the aforementioned second water outlet connection port (62) is sealedly connected to the second water outlet port; The aforementioned third water inlet connection port (31), the third water outlet connection port (32), and the second water return connection port (33) are sealedly connected to the third water inlet port, the third water outlet port, and the third water return port, respectively; The aforementioned anode water outlet connection port (72), anode water inlet connection port (71), cathode water outlet connection port (74), and cathode water inlet connection port (73) are sealedly connected to the anode water outlet port, anode water inlet port, cathode water outlet port, and cathode water inlet port, respectively.

3. The water electrolyzer according to claim 2, characterized in that The first water channel (24) is provided with a first water pump (95), and the third water channel (25) is provided with a second water pump (96).

4. The water electrolyzer according to claim 2, characterized in that A first solenoid valve (91) is provided on the water channel between the resin water outlet connection port (42) and the first water inlet connection port (51); A second solenoid valve (92) is provided on the water channel between the resin water outlet connection port (42) and the third water inlet connection port (31); A third solenoid valve (93) is provided on the water passage from the resin water outlet connection port (42) to the wastewater port (23); A fourth solenoid valve (94) is provided on the water channel between the second water outlet connection port (62) and the resin water inlet connection port (41).

5. The water electrolyzer according to claim 2, characterized in that The resin module (4) is formed with a first assembly end face and a second assembly end face at both ends, the first assembly end face being provided with a resin water inlet port (4c) and a resin water outlet port (4d), and the second assembly end face being provided with a backwash water inlet port (4a) that can be sealed and assembled with the resin water inlet connection port (41) and a backwash water outlet port (4b) that can be sealed and assembled with the resin water outlet connection port (42).

6. The water electrolyzer according to claim 5, characterized in that An end cover (8) is detachably provided on the second assembly end face of the resin module (4), and the end cover (8) can cover the resin water inlet port (4c) and the resin water outlet port (4d).

7. The water electrolyzer according to claim 6, characterized in that The upper end surface of the end cover (8) is provided with a handle (83) which can be turned over.

8. The water electrolyzer according to claim 7, characterized in that The upper end surface of the end cover (8) has a groove (82), and the groove (82) can accommodate the handle (83).

9. The water electrolyzer according to claim 1, characterized in that The shell (1) includes an outer shell (11) and an inner shell (12) arranged in the inner cavity of the outer shell (11), and the inner shell (12) has a first cavity (14) for limiting the resin module (4), a second cavity (16) for limiting the first salt box (6), a third cavity (13) for limiting the second salt box (3), a fourth cavity (15) for limiting the liquid storage tank (5), and a fifth cavity (17) for limiting the electrolytic cell (7); the waterway plate (2) is arranged at the bottom of the outer shell (11), and the inner shell (12) is limited above the waterway plate (2).

10. The water electrolyzer according to claim 9, characterized in that The inner shell (12) is provided with a first limiting rib (141) in an inverted L-shape radially protruding from the inner wall of the port of the first cavity (14). Correspondingly, the outer wall of the resin module (4) is provided with a second limiting rib (81) that cooperates with the first limiting rib (141) in limiting manner.

11. The water electrolyzer according to claim 9, characterized in that The first water inlet port (54) of the liquid storage tank (5) is provided with a sealing sleeve (5c), a slider (5b) and a spring (5a) in sequence from the outside to the inside. A water flow gap (5f) is provided between the outer periphery of the slider (5b) and the inner wall of the first water inlet port (54) for water to flow through. The spring (5a) acts on the slider (5b) and forces the slider (5b) to approach the sealing sleeve (5c), thereby placing the first water inlet port (54) in a sealed state. (54) is provided with a boss (5d) capable of extending into the sealing sleeve (5c), the boss (5d) is axially hollow and can allow water to flow through, and a notch groove (5e) is formed at the upper end of the boss (5d). When the liquid storage tank (5) is assembled on the waterway plate (2), the boss (5d) overcomes the elastic force of the spring (5a) to push up the slider (5b) so that the waterway can be kept in communication with the liquid storage tank (5) through the notch groove (5e) of the boss (5d) and the water flow gap (5f).

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