Water electrolysis device

Patent metadata

Field	Value
Publication number	US-11186914-B2
Application number	US-201816108729-A
Country	US
Kind code	B2
Filing date	Aug 22, 2018
Priority date	Aug 25, 2017
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

A water electrolysis device for generating hydrogen gas includes a case, a power supplying unit, and an ion-exchange membrane electrolyzer. The case has a containing space including a bottom space and a top space. The bottom space is larger than the top space. The power supplying unit is configured in the bottom space for supplying power to operate the water electrolysis device. The ion-exchange membrane electrolyzer includes an ion-exchange membrane and a cathode, and the cathode generates hydrogen gas during which the ion-exchange membrane electrolyzer electrolyzes water.

First claim

What is claimed is:

1. A water electrolysis device, comprising:
a case having a containing space;
a power supplying unit configured in the containing space of the case for supplying power of the water electrolysis device, wherein the power supplying unit comprises a high power output and a low power output;
an electrolyzer configured in the case and electrically coupled to the high power output of the power supplying unit, the electrolyzer generating hydrogen gas and an anode generating oxygen gas during electrolyzing water;
a casing module configured in the case and coupled to the electrolyzer, the casing module comprising a water tank configured to accommodating the water for electrolyzing-casing module further comprising a hydrogen interface and a water interface to be directly coupled to the electrolyzer without extra pipeline connection to save the space in the water electrolysis device, to receive the hydrogen gas generated by the electrolyzer via the hydrogen interface, and to replenish water from the water tank to the electrolyzer via the water interface.

2. The water electrolysis device of claim 1 , wherein the electrolyzer further comprises an anode chamber, the anode chamber comprises the anode, an anode sealing plate and an anode external plate, and the anode further comprises an anode conductive plate, the anode is coupled to the anode sealing plate and the anode external plate.

3. The water electrolysis device of claim 2 , wherein the electrolyzer comprises a cathode chamber; the cathode chamber comprises the cathode, a cathode sealing plate and a cathode external plate, and the cathode further comprises a cathode conductive plate, the cathode is coupled to the cathode sealing plate and the cathode external plate.

4. The water electrolysis device of claim 2 , wherein the electrolyzer further comprises a water supplying pipe configured to pass through the anode external plate, the anode conductive plate and the anode sealing plate to connect the anode chamber and the water tank; water from the water tank flows into the anode chamber through the water supplying pipe to replenish water in the anode chamber.

5. The water electrolysis device of claim 1 , wherein the casing module further comprises a gas supplying tube with a gas supplying interface to receive the hydrogen gas, and the water electrolysis device further comprises a pump and a fan coupled to the pump, the pump is electrically coupled to the low power output of the power supplying unit and coupled to the gas supplying interface of the gas supplying tube, the fan is configured to draw the gas from the environment outside the water electrolysis device such that the pump guiding the gas into the gas supplying tube to dilute the hydrogen gas in the gas supplying tube, wherein the gas supplying tube is connected to a hydrogen output tube of the electrolyzer via the hydrogen interface to receive the hydrogen gas.

6. The water electrolysis device of claim 5 , further comprising an atomizing/volatile gas mixing tank connected to the gas supplying tube and receiving the diluted hydrogen gas, and the atomizing/volatile gas mixing tank selectively generating an atomizing gas and mixing it with the hydrogen gas to form a health gas, wherein the atomizing gas is water vapor, atomizing potions or volatile essential oil.

7. The water electrolysis device of claim 5 , wherein a lead angle between the gas supplying interface and the gas supplying tube is less than 90 degrees, the lead angle is formed at a connecting position of the gas supplying tube and the gas supplying interface, and the connecting position forms a shape of an arc between the gas supplying tube and the gas supplying interface.

8. The water electrolysis device of claim 7 , wherein the gas supplying tube has a first flow direction, the gas supplying interface has a second flow direction, the first flow direction points to the upper portion of the water electrolysis device, the second flow direction points to the gas supplying tube, the lead angle is formed between the first flow direction and the second flow direction, the lead angle is between 25 to 45 degrees, and-the connecting position forming the lead angle forms a shape of an arc between the gas supplying tube and the gas supplying interface.

9. The water electrolysis device of claim 5 , further comprising:
a hydrogen concentration detector, wherein the hydrogen concentration detector generating a first warning signal when the detected volume concentration of the hydrogen is higher than a first predetermined value; and
a controller coupled to the hydrogen concentration detector, and generating a start command to start up the pump when receiving the first warning signal, wherein the first predetermined value is 4%.

10. The water electrolysis device of claim 1 , further comprising:
a hydrogen concentration detector, wherein the hydrogen concentration detector generates a second warning signal when the hydrogen concentration is higher than a second predetermined value; and
a controller coupled to the hydrogen concentration detector and generating a stop command to stop the electrolyzer when receiving the second warning signal, wherein the second predetermined value is 6%.

11. The water electrolysis device of claim 1 , wherein the casing module further comprises an oxygen interface, the electrolyzer further comprises a hydrogen output tube for coupling to the hydrogen interface and outputting the hydrogen gas to the hydrogen interface, and an oxygen output tube for coupling to the oxygen interface and outputting the oxygen gas to the oxygen interface, the hydrogen output tube and the oxygen output tube extend outward from the electrolyzer.

12. The water electrolysis device of claim 1 , further comprising a water level detecting device configured to detect the amount of water in the water tank.

13. The water electrolysis device of claim 1 , wherein the volume of the water electrolysis device is less than 8.5L, and a hydrogen generating rate of the water electrolysis device is located in a range between 120 ml/min and 600 ml/min.

14. A water electrolysis device, comprising:
a case comprising a base, a side wall and a containing space;
a power supplying unit configured in the containing space of the case and electrically connected to the water electrolysis device, wherein the power supplying unit comprises a high power output and a low power output;
a casing module configured in the case, the casing module comprising a water tank, a hydrogen interface and a water interface, wherein the water tank is configured for accommodating water;
an electrolyzer configured in the case, the electrolyzer coupled to the casing module and electrically coupled to the high power output of the power supplying unit, the electrolyzer comprising a first side, a second side, an ion-exchange membrane, a cathode, an anode, a hydrogen output tube, and a water supplying pipe coupled to the water tank and configured to receive the water via the water interface, the ion-exchange membrane being configured between the anode and the cathode; wherein when the electrolyzer electrolyzes water, the cathode generates hydrogen gas and the anode generates oxygen gas; the hydrogen output tube is configured to output the hydrogen gas to the casing module via the hydrogen interface wherein the hydrogen output tube and the water supplying pipe extend outward from the electrolyzer to be coupled to the hydrogen interface and the water interface without extra pipeline connection to save the space in the water electrolysis device; and
an atomizing/volatile gas mixing tank coupled to the low power output of the power

Assignees

• Lin Hsin Yung

Inventors

• Lin Hsin-Yung

Classifications

• C25B15/023

  Measuring, analysing or testing during electrolytic production · CPC title

• C02F2209/42

  Liquid level · CPC title

• C02F2209/30

  H2 · CPC title

• C02F1/008

  Control or steering systems not provided for elsewhere in subclass C02F · CPC title

• A61M2205/053

  ultraviolet · CPC title