Atomizer

Patent metadata

Field	Value
Publication number	US-12305630-B2
Application number	US-202117469360-A
Country	US
Kind code	B2
Filing date	Sep 8, 2021
Priority date	Mar 29, 2019
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

An atomizer includes a first piezoelectric pump, a second piezoelectric pump, a first flow path connected to the first piezoelectric pump, a second flow path connected to the second piezoelectric pump and merged with the first flow path, a third flow path connected to a merging portion of the first flow path and the second flow path, the third flow path having a first end and a second end, a liquid storage portion, and a nozzle including a gas supply flow path connected to the second end of the third flow path, a liquid supply flow path connected to the liquid storage portion, and a blow-out port, wherein the third flow path has a bent portion between the first end and the second end.

First claim

The invention claimed is:

1. An atomizer comprising:
a first piezoelectric pump configured to blow out gas from a first discharge port;
a second piezoelectric pump configured to blow out gas from a second discharge port;
a first flow path connected to the first discharge port of the first piezoelectric pump;
a second flow path connected to the second discharge port of the second piezoelectric pump and merged with the first flow path;
a third flow path connected to a merging portion of the first flow path and the second flow path, the third flow path having a first end and a second end;
a liquid storage portion configured to store liquid;
a nozzle including a gas supply flow path connected to the second end of the third flow path, a liquid supply flow path connected to the liquid storage portion, and a blow-out port, the blow-out port connected to the gas supply flow path and the liquid supply flow path in such a manner that gas supplied to the gas supply flow path and liquid supplied to the liquid supply flow path are merged to supply the merged gas and liquid to the blow-out port, wherein
the third flow path has a bent portion between the first end and the second end.

2. The atomizer according to claim 1 , wherein
the bent portion is bent toward a direction opposite to a direction where the blow-out port is positioned with respect to the merging portion.

3. The atomizer according to claim 2 , wherein
the third flow path includes a first portion extending from the first end, a second portion being curved and extending from the first portion as the bent portion, and a third portion extending from the second portion to the second end.

4. The atomizer according to claim 2 , wherein
the first piezoelectric pump has a first main surface comprising the first discharge port and a second main surface opposite to the first main surface,
the second piezoelectric pump has a third main surface comprising the second discharge port and a fourth main surface opposite to the third main surface, and
the second main surface and the fourth main surface are arranged to face each other.

5. The atomizer according to claim 2 , wherein the atomizer further comprises a joint portion that have a first port, a second port, and a third port respectively connected to the first flow path, the second flow path, and the third flow path, and the merging portion of the first flow path and the second flow path has a flow path inside the joint portion.

6. The atomizer according to claim 1 , wherein
the third flow path includes a first portion extending from the first end, a second portion being curved and extending from the first portion as the bent portion, and a third portion extending from the second portion to the second end.

7. The atomizer according to claim 6 , wherein
the first piezoelectric pump has a first main surface comprising the first discharge port and a second main surface opposite to the first main surface,
the second piezoelectric pump has a third main surface comprising the second discharge port and a fourth main surface opposite to the third main surface, and
the second main surface and the fourth main surface are arranged to face each other.

8. The atomizer according to claim 6 , wherein the atomizer further comprises a joint portion that have a first port, a second port, and a third port respectively connected to the first flow path, the second flow path, and the third flow path, and the merging portion of the first flow path and the second flow path has a flow path inside the joint portion.

9. The atomizer according to claim 1 , wherein
the first piezoelectric pump has a first main surface comprising the first discharge port and a second main surface opposite to the first main surface,
the second piezoelectric pump has a third main surface comprising the second discharge port and a fourth main surface opposite to the third main surface, and
the second main surface and the fourth main surface are arranged to face each other.

10. The atomizer according to claim 9 , wherein
the nozzle is arranged in a space between the second main surface and the fourth main surface.

11. The atomizer according to claim 1 , wherein
the atomizer further comprises a joint portion that have a first port, a second port, and a third port respectively connected to the first flow path, the second flow path, and the third flow path, and
a flow path is inside the joint portion at the merging portion of the first flow path and the second flow path.

12. The atomizer according to claim 11 , wherein
the joint portion is a T-tube or a Y-tube.

13. The atomizer according to claim 1 , further comprising:
a case configured to accommodate the first piezoelectric pump, the second piezoelectric pump, the first flow path, the second flow path, the third flow path, and the nozzle, the case comprising a first opening through which the blow-out port of the nozzle is exposed to an outside.

14. The atomizer according to claim 13 , further comprising:
a switch electrically connected to the first piezoelectric pump and the second piezoelectric pump, wherein
the case accommodates the switch and comprises a second opening through which the switch is exposed to an outside.

15. The atomizer according to claim 14 , wherein
the case has an upper surface, a lower surface, and a side surface connecting the upper surface and the lower surface, the upper surface comprises the first opening, and the side surface comprises the second opening.

16. The atomizer according to claim 15 , wherein
the second opening is arranged at a position closer to the upper surface than to the lower surface in the side surface of the case.

17. The atomizer according to claim 13 , wherein
the case has an upper surface, a lower surface, and a side surface connecting the upper surface and the lower surface, and the upper surface comprises the first opening.

18. The atomizer according to claim 13 , wherein
the case has a cylindrical shape.

19. The atomizer according to claim 1 , wherein
the liquid storage portion includes a vent.

20. An atomizer comprising:
a first piezoelectric pump configured to blow out gas from a first discharge port;
a second piezoelectric pump configured to blow out gas from a second discharge port;
a first flow path connected to the first discharge port of the first piezoelectric pump;
a second flow path connected to the second discharge port of the second piezoelectric pump and merged with the first flow path;
a third flow path connected to a merging portion of the first flow path and the second flow path, the third flow path having a first end and a second end;
a liquid storage portion configured to store liquid;
a nozzle including a gas supply flow path connected to the second end of the third flow path, a liquid supply flow path connected to the liquid storage portion, and a blow-out port, the blow-out port connected to the gas supply flow path and the liquid supply flow path in such a manner that gas supplied to the gas supply flow path and liquid supplied to the liquid supply flow path are merged to supply the merged gas and liquid to the blow-out port; and
a fourth flow path provided between the liquid storage portion and the liquid supply flow path, wherein
the third flow path includes a first portion including the first end, a third portion including the second end, and a second portion provided between the first portion and the third portion, the second portion positioned below the first portion and the third p

Assignees

• Murata Manufacturing Co

Inventors

• Ikeda Miki
• Kawasaki Yohei
• Kurihara Kiyoshi
• Okaguchi Kenjiro

Classifications

• B05B7/2416

  characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives · CPC title

• B05B17/0607

  generated by electrical means, e.g. piezoelectric transducers · CPC title

• H05B1/0244

  Heating of fluids (H05B1/0247 takes precedence) · CPC title

• F04B43/046 Primary

  with piezoelectric drive · CPC title

• F04B45/047

  Pumps having electric drive · CPC title