Miniaturized hydrogen bath machine

Abstract

The utility model relates to a miniaturized hydrogen bath machine which comprises a shell and an electrolytic water tank, the electrolytic water tank is arranged on the shell, an electrolytic bath, a hydrogen pipeline and a gas-liquid mixing barrel are arranged in the shell, a water outlet of the electrolytic water tank is communicated with the interior of the electrolytic bath, the gas-liquid mixing barrel is vertically arranged, and the electrolytic bath is communicated with the gas-liquid mixing barrel through the hydrogen pipeline; one end of the gas-liquid mixing barrel is in threaded connection with a liquid inlet connector communicated with an external tap water pipe, the other end of the gas-liquid mixing barrel is in threaded connection with a liquid outlet connector communicated with the shower head, the gas-liquid mixing barrel is directly communicated with the tap water pipe and the shower head, a water pump and a pipeline system matched with the water pump are omitted, meanwhile, the stroke of a pipeline arranged in the shell is short, and the water pump is convenient to use. Therefore, compared with a traditional hydrogen bath machine, the number and stroke of pipelines are greatly reduced, and the possibility of pipeline leakage is reduced. The effect of prolonging the service life of the hydrogen bath machine is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen bath machines, and in particular to a miniaturized hydrogen bath machine. Background Art

[0002] A hydrogen water bath refers to bathing in hydrogen-rich water. Active hydrogen can effectively remove free radicals in the body and have a positive impact on skin health, body recovery and overall health. A hydrogen bath machine is a device that mixes hydrogen with water to form hydrogen-rich water for bathing. By dispersing hydrogen into micro-nano bubbles and mixing them in water, the hydrogen content in the hydrogen-rich water can be increased, which helps to improve health care effects.

[0003] In related technologies, a hydrogen bath machine is usually composed of a hydrogen production component and a gas-liquid mixing component. The hydrogen production component includes an electrolyzer, which produces hydrogen by electrolyzing water in the electrolyzer. The gas-liquid mixing component includes a water tank, an air pump, a gas-liquid mixing chamber and many piping systems. The water pump is used to pump the liquid in the water tank into the gas-liquid mixing chamber through the water pump pipeline. At the same time, the water pump provides the water with sufficient kinetic energy, and then uses this part of the kinetic energy to drive the hydrogen and water to complete the mixing, thereby producing hydrogen bath water.

[0004] However, as the hydrogen bath machine is used for a longer time, the various water pump pipes inside the hydrogen bath machine are prone to aging due to external factors, leading to pipe leakage. The probability of pipe aging will increase significantly with the increase in the number of pipes inside the hydrogen bath machine. At the same time, the water pump pipe stroke in the gas-liquid mixing component is too long, and the probability of pipe leakage increases. Pipe leakage will eventually reduce the service life of the hydrogen bath machine, which is an obvious shortcoming. Utility Model Content

[0005] In order to increase the service life of the hydrogen bath machine, the present application provides a miniaturized hydrogen bath machine.

[0006] The present application provides a miniaturized hydrogen bath machine that adopts the following technical solutions:

[0007] A miniaturized hydrogen bath comprises a shell and an electrolytic water tank, wherein the electrolytic water tank is arranged on the shell, and an electrolytic cell, a hydrogen pipeline and a gas-liquid mixing cylinder are arranged in the shell. The water outlet of the electrolytic water tank is connected to the interior of the electrolytic cell, the gas-liquid mixing cylinder is arranged vertically, and the electrolytic cell is connected to the gas-liquid mixing cylinder through the hydrogen pipeline. One end of the gas-liquid mixing cylinder is threadedly connected to a liquid inlet joint connected to an external tap water pipe, and the other end is threadedly connected to a liquid outlet joint connected to a shower head.

[0008] By adopting the above technical solution, when in use, the electrolyzer electrolyzes the water inside the water tank, and the hydrogen after electrolysis enters the gas-liquid mixing cylinder through the hydrogen pipeline. The water in the gas-liquid mixing cylinder flows vertically under the action of gravity, and is mixed with hydrogen during the flow to obtain hydrogen-rich water. The hydrogen-rich water flows out of the shower head for showering. This arrangement saves the water pump and the supporting pipeline system of the water pump. The gas-liquid mixing process is completed through only one hydrogen pipeline. At the same time, all the pipelines are arranged inside the shell, and the stroke of the pipeline is greatly shortened. Therefore, compared with the traditional hydrogen bath machine, the number and stroke of the pipelines are greatly reduced, the possibility of pipeline leakage is reduced, and the service life of the hydrogen bath machine is increased.

[0009] Optionally, a mixing assembly is provided inside the gas-liquid mixing cylinder, and the mixing assembly includes a first cylinder body provided inside the gas-liquid mixing cylinder, one end of the first cylinder body is abutted against the liquid inlet joint, and a plurality of swirl plates are provided on the outer surface of the first cylinder, and the swirl plates are spirally distributed on the outer surface of the first cylinder.

[0010] By adopting the above technical solution, during the flow of the hydrogen-water mixture in the gas-liquid mixing cylinder, the spirally distributed swirl plates arranged on the outer periphery of the first cylinder guide the hydrogen-water mixture into a rotating fluid and can break up the hydrogen bubbles in the water, thereby improving the degree of hydrogen-water mixing and increasing the hydrogen content in the water.

[0011] Optionally, the mixing assembly also includes a second cylinder, which is arranged inside the gas-liquid mixing cylinder, one end of the second cylinder is connected to the end of the first cylinder away from the liquid inlet joint, and the other end abuts on the liquid outlet joint, and a plurality of ridges are provided on the outer surface of the second cylinder, and the plurality of ridges abut against the inner surface of the gas-liquid mixing cylinder.

[0012] By adopting the above technical solution, the gas-liquid mixture is limited by the volume of the second cylinder, and the flow rate of hydrogen-rich water flowing out of the gas-liquid mixing cylinder per unit time is reduced, thereby extending the time for hydrogen and water to mix on the outer surface of the first cylinder. At the same time, the setting of the ridges extends the flow path of the gas-liquid mixture, increases the probability of hydrogen and water mixing, and thus increases the hydrogen content in the hydrogen-rich water.

[0013] Optionally, a hook plate is provided on the electrolytic water tank, and a hook groove for engaging with the hook plate is provided on the shell.

[0014] By adopting the above technical solution, the arrangement of the hook plate and the hook groove realizes the detachable connection of the electrolytic water tank on the shell, thereby making it easier for workers to assemble the electrolytic water tank.

[0015] Optionally, an electrical control box is further provided in the shell, and the electrolytic cell, the gas-liquid mixing cylinder and the electrical control box are arranged in sequence in the shell. An electrical control slot is provided at one end of the electrical control box, and a battery slot is provided at the other end. A control circuit board is provided in the electrical control slot, and a battery for providing electrical energy to the electrolytic cell is provided in the battery slot.

[0016] By adopting the above technical solution, the setting of the electrical control box realizes the automatic operation of the hydrogen bath machine. If the electrolyzer is directly connected to the external power supply, an external power cord is required to power the electrolyzer, which increases the safety hazards of the use of the hydrogen bath machine. Powering the electrolyzer with a battery realizes a small integrated design of the hydrogen bath machine, eliminating the safety problems caused by the external power supply. At the same time, under the safety protection of the electrical control box and the shell, the safety of the battery is guaranteed, thereby increasing the service life of the hydrogen bath machine.

[0017] Optionally, a water flow sensor is provided at one end of the gas-liquid mixing cylinder close to the liquid inlet joint, and the water flow sensor is electrically connected to the control circuit board.

[0018] By adopting the above technical solution, when the water inlet flow rate is too large, if the hydrogen production speed of the electrolyzer is too slow, the hydrogen concentration of the hydrogen-rich water will decrease. By setting a water flow sensor to obtain the flow data at the water inlet joint, the control circuit board receives the flow data to adjust the power supply of the electrolyzer, thereby adjusting the hydrogen production speed of the electrolyzer to ensure the hydrogen content in the hydrogen-rich water output by the hydrogen bath machine.

[0019] Optionally, the shell is provided with a mounting slot connected to the battery slot, the mounting slot is detachably connected to a battery cover, a card frame is provided on the side of the electrical control box close to the battery slot, the battery cover is provided with a snap-in slot that is snap-fitted with the card frame, a plurality of snap-in slots are provided on the inner side wall of the mounting slot, the battery cover is provided with a card plate corresponding to the card slots one by one, the card plate is snapped into the inside of the card slot, and the shell is provided with a fastening component for fastening the battery cover to the electrical control box.

[0020] By adopting the above technical solution, the setting of the battery cover makes it convenient for workers to replace the battery. When the battery needs to be replaced, the worker removes the fastener and disengages the card frame from the card slot, and the card block from the card slot, thereby removing the battery cover from the electrolytic cell. After the replacement is completed, the worker connects the battery cover to the battery slot and fixes the battery cover with fasteners.

[0021] Optionally, the fastening assembly includes a clamping block and a pulling block, the clamping block and the pulling block are integrally formed and arranged on the battery cover, the clamping block and the pulling block are made of rubber material, the shell is provided with a fastening groove that is snap-fitted with the clamping block, the clamping block is pressed against the fastening groove, a fixing column is provided on the shell, and the pulling block is provided with a through hole that is slidably fitted with the fixing column, and when the clamping block is pressed against the fastening groove, the through hole is sleeved on the outer surface of the fixing column.

[0022] By adopting the above technical solution, after the battery cover is snapped onto the battery slot, the worker bends the lever block so that the through hole is sleeved on the outer surface of the fixed column, and the pressing block automatically presses against the inside of the pressing groove under the action of elasticity, and the battery cover is fastened to the shell, thereby improving the stability of the battery cover on the shell. When the battery cover needs to be removed, the worker bends the lever block so that the through hole is separated from the fixed column, squeezes the pressing block to shrink the pressing block, and the inclined surface of the pressing block is away from the fastening groove. At this time, the battery cover is separated from the shell.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. This application provides a hydrogen pipeline, a gas-liquid mixing cylinder, a liquid inlet joint, and a liquid outlet joint, which are directly connected to the tap water pipe and the shower head through the gas-liquid mixing cylinder, thus saving the water pump and the supporting pipeline system. At the same time, all the pipelines are arranged inside the shell, and the pipeline stroke is greatly shortened. Therefore, compared with the traditional hydrogen bath machine, the number and stroke of the pipelines are greatly reduced, the possibility of pipeline leakage is reduced, and the service life of the hydrogen bath machine is increased;

[0025] 2. The present application sets a first cylinder and a second cylinder, and guides the hydrogen-water mixture into a rotating fluid through a spirally distributed swirl plate set on the outer periphery of the first cylinder, and can break up the hydrogen bubbles in the water, thereby improving the degree of hydrogen-water mixing and the hydrogen content in the water. The volume of the second cylinder is used to block and reduce the outflow of the hydrogen-water mixture, thereby extending the mixing time of hydrogen and water on the outer surface of the first cylinder, and increasing the probability of hydrogen and water mixing, thereby increasing the hydrogen content in the hydrogen-rich water. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of this application.

[0027] Figure 2 It is a cross-sectional view of the shell in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view of the gas-liquid mixing cylinder in the embodiment of the present application.

[0029] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0030] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0031] Figure 6 It is a structural diagram of the battery cover in an embodiment of the present application.

[0032] Explanation of the accompanying reference numerals: 1. Shell; 11. Hook groove; 12. Mounting groove; 121. Slot; 13. Fastening groove; 2. Electrolytic water tank; 21. Hook plate; 3. Electrolytic cell; 4. Gas-liquid mixing cylinder; 41. Liquid inlet connector; 42. Liquid outlet connector; 43. Water flow sensor; 5. Electric control box; 51. Electric control tank; 511. Control circuit board; 52. Battery tank; 521. Battery; 53. Card frame; 6. Hydrogen pipeline; 7. Mixing assembly; 71. First cylinder; 72. Second cylinder; 73. Swirl plate; 74. Ridge; 8. Battery cover; 81. Connecting groove; 82. Card plate; 9. Fastening assembly; 91. Tightening block; 92. Pull block; 921. Through hole; 94. Fixing column. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The embodiment of the present application discloses a miniaturized hydrogen bath machine.

[0035] Reference Figure 1 A miniaturized hydrogen bath machine includes a shell 1 and an electrolytic water tank 2. The shell 1 is L-shaped. The electrolytic water tank 2 is arranged on the shell 1. A hook plate 21 is fixedly installed on the edge of the electrolytic water tank 2 near the shell 1. The shell 1 is provided with a hook groove 11 that is engaged with the hook plate 21. The electrolytic water tank 2 stores electrolytic water for preparing hydrogen. The user can use the hook plate 21 to disassemble and install the electrolytic water tank 2, which is convenient for the user to remove the electrolytic water tank 2 and replenish water in the electrolytic water tank 2.

[0036] Reference Figure 1 and Figure 2, the inside of the shell 1 is sequentially installed with an electrolytic cell 3, a gas-liquid mixing cylinder 4 and an electric control box 5 along the direction away from the electrolytic water tank 2, the electrolytic cell 3 is arranged directly below the electrolytic water tank 2, the water outlet of the electrolytic water tank 2 is connected to the inside of the electrolytic cell 3, and a hydrogen pipeline 6 is installed on the electrolytic cell 3, which extends to the inside of the gas-liquid mixing cylinder 4 along the vertical direction of the shell 1. The gas-liquid mixing cylinder 4 is vertically arranged, and one end of the gas-liquid mixing cylinder 4 away from the electrolytic cell 3 is threadedly connected to a liquid inlet joint 41, and the other end is threadedly connected to a liquid outlet joint 42, wherein the liquid inlet joint 41 is directly connected to the external tap water pipe, and the liquid outlet joint 42 is connected to the shower head, and the inside of the electric control box 5 is sequentially provided with an electric control tank 51 and a battery tank 52 from top to bottom, wherein a control circuit board 511 is installed in the electric control tank 51, and a battery 521 for providing power to the electrolytic cell 3 is provided in the battery tank 52.

[0037] During use, the battery 521 provides electric energy to the electrolyzer 3, and the electrolyzer 3 electrolyzes the water inside the electrolytic water tank 2. The hydrogen after electrolysis enters the gas-liquid mixing cylinder 4 through the hydrogen pipe 6. The water in the gas-liquid mixing cylinder 4 flows vertically under the action of gravity, and is mixed with hydrogen during the flow to obtain hydrogen-rich water. The hydrogen-rich water flows out from the shower head for showering. This arrangement saves the water pump and the supporting pipeline system of the water pump. The gas-liquid mixing process is completed through only one hydrogen pipe 6. At the same time, all the pipelines are arranged inside the shell 1, and the stroke of the pipeline is greatly shortened. Therefore, compared with the traditional hydrogen bath machine, the number and stroke of the pipelines are greatly reduced, the possibility of pipeline leakage is reduced, and the service life of the hydrogen bath machine is improved.

[0038] Reference Figure 2 and Figure 3 A mixing assembly 7 is provided inside the gas-liquid mixing cylinder 4. The mixing assembly 7 includes a first cylinder 71 provided inside the gas-liquid mixing cylinder 4, one end of the first cylinder 71 abuts against the liquid inlet joint 41, and the other end is threadedly connected to the second cylinder 72, and the cross-sectional area of ​​the second cylinder 72 is larger than the cross-sectional area of ​​the first cylinder 71, and the end of the second cylinder 72 away from the first cylinder 71 abuts against the liquid outlet joint 42, and a plurality of swirl plates 73 are provided on the outer surface of the first cylinder 71, and the plurality of swirl plates 73 are spirally distributed on the first cylinder 71 along the length direction of the first cylinder 71, and a plurality of ridges 74 are evenly distributed at equal distances on the outer surface of the second cylinder 72, and the end surface of the plurality of ridges 74 away from the second cylinder 72 abuts against the inner surface of the gas-liquid mixing cylinder 4.

[0039] During the flow of the hydrogen-water mixture in the gas-liquid mixing cylinder 4, the spirally distributed swirl plates 73 arranged on the outer periphery of the first cylinder 71 guide the hydrogen-water mixture into a rotating fluid and can break up the hydrogen bubbles in the water, thereby increasing the degree of hydrogen-water mixing and the hydrogen content in the water. The gas-liquid mixture guided by the swirl plates 73 is limited by the volume of the second cylinder 72, and the flow rate of hydrogen-rich water flowing out of the gas-liquid mixing cylinder 4 per unit time is reduced, thereby extending the mixing time of hydrogen and water on the outer surface of the first cylinder 71. At the same time, the setting of the ridges 74 extends the flow path of the gas-liquid mixture, increases the probability of hydrogen and water mixing, and thus increases the hydrogen content in the hydrogen-rich water.

[0040] Reference Figure 2 and Figure 3 When the water inlet flow rate is too large, if the hydrogen production speed of the electrolyzer 3 is too slow, the hydrogen concentration of the hydrogen-rich water will decrease. In order to increase the hydrogen concentration in the hydrogen-rich water, a water flow sensor 43 is installed at one end of the gas-liquid mixing cylinder 4 close to the liquid inlet connector 41. The water flow sensor 43 is electrically connected to the control circuit board 511.

[0041] The water flow sensor 43 measures the flow data at the water inlet joint, and the control circuit board 511 receives the flow data to adjust the power supply of the electrolyzer 3, thereby adjusting the hydrogen production speed of the electrolyzer 3 to ensure the hydrogen content in the hydrogen-rich water output by the hydrogen bath machine.

[0042] Reference Figure 4 and Figure 5 The shell 1 is provided with a mounting slot 12 that is connected to the battery slot 52, and the battery cover 8 is detachably connected to the mounting slot 12. A card frame 53 is fixedly installed on the side wall of the electric control box 5 near the battery slot 52, and a card slot 81 that is engaged with the card frame 53 is provided on the surface of the battery cover 8 near the battery slot 52. A plurality of card slots 121 are provided on the inner side wall of the mounting slot 12. In this embodiment, the card slots 121 are vertically arranged and there are two card slots 121. A card plate 82 corresponding to the card slots 121 is fixedly installed on the battery cover 8, and the card plate 82 is engaged with the card slot 121. A fastening component 9 that fastens the battery cover 8 to the electric control box 5 is fixedly installed on the end of the battery cover 8 away from the card plate 82.

[0043] Reference Figure 5 and Figure 6The fastening assembly 9 includes a tightening block 91 and a pulling block 92. The tightening block 91 and the pulling block 92 are integrally formed and fixedly connected to the bottom end of the battery cover 8. The tightening block 91 and the pulling block 92 are both made of rubber material. The cross-section of the tightening block 91 is triangular. The bottom surface of the shell 1 is provided with a fastening groove 13 that is snap-fitted with the tightening block 91. The inclined surface of the tightening block 91 is pressed against the inside of the fastening groove 13. A fixing column 94 is fixedly installed on the bottom surface of the shell 1. The pulling block 92 is provided with a through hole 921 that slides with the fixing column 94. When the battery cover 8 is fastened to the shell 1, the fixing column 94 is inserted into the through hole 921.

[0044] The arrangement of the battery cover 8 makes it convenient for workers to replace the battery 521. When the battery 521 needs to be replaced, the worker moves the lever block 92 to separate the through hole 921 from the fixing column 94, squeezes the pressing block 91 to shrink the pressing block 91, and the inclined surface of the pressing block 91 moves away from the fastening groove 13. The worker pulls the battery cover 8 outward to separate the battery cover 8 from the mounting groove 12. After removing the battery cover 8, the worker takes out the old battery 521 and places the new battery 521 in the battery slot 52. Then, the card plate 82 on the battery cover 8 is inserted into the battery slot 52. The card slot 121 and the connecting slot 81 are connected to the outside of the card frame 53, and finally the lever block 92 is bent to make the through hole 921 sleeved on the outer surface of the fixing column 94. The pressing block 91 is automatically pressed against the inside of the pressing slot under the action of elasticity, and the battery cover 8 is fastened to the shell 1. The battery 521 in the battery slot 52 is under the multiple protection of the battery cover 8, the shell 1 and the electrical control box 5. The possibility of water entering the battery slot 52 is greatly reduced, thereby ensuring the safe use of the battery 521 and thus improving the service life of the hydrogen bath machine.

[0045] The implementation principle of a miniaturized hydrogen bath machine in an embodiment of the present application is as follows: before the user uses the hydrogen bath machine, the liquid inlet connector 41 is connected to the tap water pipe, and the liquid outlet connector 42 is connected to the shower head. During use, the electrolyzer 3 electrolyzes the water inside the electrolytic water tank 2, and the electrolyzed hydrogen enters the gas-liquid mixing cylinder 4 through the hydrogen pipe 6. The water in the gas-liquid mixing cylinder 4 flows vertically under the action of gravity, and is mixed with hydrogen during the flow process to obtain hydrogen-rich water. At the same time, under the mixing action of the mixing component 7, the hydrogen content in the hydrogen-rich water is increased, and the hydrogen-rich water flows out of the shower head for showering. This arrangement saves the water pump and the supporting pipeline system of the water pump. The gas-liquid mixing process is completed only through one hydrogen pipe 6. At the same time, all the pipelines are arranged inside the shell 1, and the stroke of the pipeline is greatly shortened. Therefore, compared with the traditional hydrogen bath machine, the number and stroke of the pipelines are greatly reduced, the possibility of pipeline leakage is reduced, and the service life of the hydrogen bath machine is improved.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A miniaturized hydrogen bath, characterized in that: The invention comprises a shell (1) and an electrolytic water tank (2), wherein the electrolytic water tank (2) is arranged on the shell (1), and an electrolytic cell (3), a hydrogen pipeline (6) and a gas-liquid mixing cylinder (4) are arranged in the shell (1), the water outlet of the electrolytic water tank (2) is connected to the inside of the electrolytic cell (3), the gas-liquid mixing cylinder (4) is arranged vertically, the electrolytic cell (3) is connected to the gas-liquid mixing cylinder (4) through the hydrogen pipeline (6), and one end of the gas-liquid mixing cylinder (4) is threadedly connected to a liquid inlet joint (41) connected to an external tap water pipe, and the other end is threadedly connected to a liquid outlet joint (42) connected to a shower head.

2. A miniaturized hydrogen bath according to claim 1, characterized in that: A mixing assembly (7) is provided inside the gas-liquid mixing cylinder (4), and the mixing assembly (7) comprises a first cylinder (71) provided inside the gas-liquid mixing cylinder (4), one end of the first cylinder (71) abuts against the liquid inlet joint (41), and a plurality of swirl plates (73) are provided on the outer surface of the first cylinder (71), and the swirl plates (73) are spirally distributed on the outer surface of the first cylinder (71).

3. A miniaturized hydrogen bath according to claim 2, characterized in that: The mixing assembly (7) further comprises a second cylinder (72), which is arranged inside the gas-liquid mixing cylinder (4), one end of the second cylinder (72) being connected to an end of the first cylinder (71) away from the liquid inlet connector (41), and the other end being in contact with the liquid outlet connector (42), and a plurality of ridges (74) being provided on the outer surface of the second cylinder (72), and the plurality of ridges (74) being in contact with the inner surface of the gas-liquid mixing cylinder (4).

4. A miniaturized hydrogen bath according to claim 1, characterized in that: The electrolytic water tank (2) is provided with a hook plate (21), and the housing (1) is provided with a hook groove (11) that is engaged with the hook plate (21).

5. A miniaturized hydrogen bath according to claim 1, characterized in that: An electric control box (5) is further provided in the housing (1); the electrolytic cell (3), the gas-liquid mixing cylinder (4) and the electric control box (5) are sequentially arranged in the housing (1); an electric control slot (51) is provided at one end of the electric control box (5), and a battery slot (52) is provided at the other end; a control circuit board (511) is provided in the electric control slot (51); and a storage battery (521) for providing electric energy to the electrolytic cell (3) is provided in the battery slot (52).

6. A miniaturized hydrogen bath according to claim 5, characterized in that: A water flow sensor (43) is provided at one end of the gas-liquid mixing cylinder (4) close to the liquid inlet joint (41), and the water flow sensor (43) is electrically connected to the control circuit board (511).

7. A miniaturized hydrogen bath according to claim 5, characterized in that: The housing (1) is provided with a mounting slot (12) communicating with the battery slot (52), a battery cover (8) is detachably connected to the mounting slot (12), a card frame (53) is provided on a side of the electric control box (5) close to the battery slot (52), a card slot (81) is provided on the battery cover (8) for card engagement with the card frame (53), a plurality of card slots (121) are provided on the inner side wall of the mounting slot (12), a card plate (82) corresponding to each of the card slots (121) is provided on the battery cover (8), the card plate (82) is carded inside the card slot (121), and a fastening assembly (9) for fastening the battery cover (8) to the electric control box (5) is provided on the housing (1).

8. A miniaturized hydrogen bath according to claim 7, characterized in that: The fastening assembly (9) includes a pressing block (91) and a pulling block (92), the pressing block (91) and the pulling block (92) are integrally formed and arranged on the battery cover (8), the pressing block (91) and the pulling block (92) are made of rubber material, the shell (1) is provided with a fastening groove (13) that is snap-fitted with the pressing block (91), the pressing block (91) is pressed against the fastening groove (13), the shell (1) is provided with a fixing column (94), the pulling block (92) is provided with a through hole (921) that is slidably fitted with the fixing column (94), and when the pressing block (91) is pressed against the fastening groove (13), the through hole (921) is sleeved on the outer surface of the fixing column (94).

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