Supercharger and carbonated water mixing device

1. A supercharger, comprising:

a housing, wherein a plurality of the accommodating cavities are formed in the housing, the housing is provided with a gas-liquid inlet and an outlet communicating with the accommodating cavity, an impact interface is provided in the accommodating cavity, and the gas-liquid inlet is configured for a gas-liquid mixture to enter the accommodating cavity and impact on the impact interface; and

an impeller rotatably provided in the accommodating cavity,

wherein the gas-liquid inlet is provided on a periphery of the impeller, ribs are protruded on an inner wall of the accommodating cavity, the ribs are spaced from the impeller, and side walls of the ribs form the impact interface; and

wherein a channel communicating two accommodating cavities is provided between side walls of the two accommodating cavities adjacent to each other, and each of the two accommodating cavities is provided with the impeller and the impact interface, the gas-liquid inlet is communicated with a first accommodating cavity, and the outlet is communicated with a last accommodating cavity.

2. The supercharger of claim 1 , wherein a plurality of ribs are protruded on the inner wall of the accommodating cavity, and the plurality of ribs are spaced apart along a circumference of the impeller.

3. The supercharger of claim 1 , wherein a channel outlet of the channel is provided towards the impeller at an outlet end of the channel.

4. The supercharger of claim 1 , wherein a cross-sectional area of the channel is gradually decreased along a direction of water flow.

5. The supercharger of claim 1 , further comprising:

a throttle valve communicated with the outlet; and/or

a tee joint,

wherein the tee joint comprises an air inlet joint, a liquid inlet joint and a connection joint, and the connection joint is communicated with the gas-liquid inlet.

6. The supercharger of claim 1 , wherein the housing comprises:

an outer casing, an accommodating space with an opening being formed on the outer casing, the outer casing being provided with the gas-liquid inlet and the outlet communicating with the accommodating space; and

a cover, the cover being covered on the opening to be enclosed with the outer casing to form the accommodating cavity.

7. The supercharger of claim 6 , further comprising:

a sealing member,

wherein the sealing member is provided around a circumference of the opening, and is sandwiched between the outer casing and the cover.

8. A carbonated water mixing device, comprising the supercharger of claim 1 .