Ultrasonic atomization assembly, ultrasonic atomizer and ultrasonic atomization device

Abstract

An ultrasonic atomization assembly, an ultrasonic atomizer, and an ultrasonic atomization device are provided. The ultrasonic atomization assembly includes an ultrasonic atomization sheet including a first electrode and a second electrode; a first liquid guide element in contact with the ultrasonic atomization sheet and configured to transfer a liquid substrate to the ultrasonic atomization sheet; and an atomization sleeve including a limiting portion. One end of the atomization sleeve is provided with an opening. A part of the first liquid guide element is exposed to the opening, and the other part of the first liquid guide element is held between the limiting portion and the ultrasonic atomization sheet. The ultrasonic atomization sheet and the liquid guide element are accommodated in the atomization sleeve and a part of the liquid guide element is exposed to the opening at the end of the atomization sleeve.

1 . An ultrasonic atomization assembly comprising:
 an ultrasonic atomization sheet, wherein the ultrasonic atomization sheet comprises a first electrode and a second electrode and is configured to ultrasonically atomize a liquid substrate to form a liquid mist;   a first liquid guide element, wherein the first liquid guide element is in contact with the ultrasonic atomization sheet and is configured to transfer the liquid substrate to the ultrasonic atomization sheet; and   an atomization sleeve, wherein the atomization sleeve comprises a limiting portion and one end of the atomization sleeve is provided with an opening,   wherein the first liquid guide element is at least partially exposed to the opening, and the first liquid guide element is held between the limiting portion and the ultrasonic atomization sheet.   
     
     
         2 . The ultrasonic atomization assembly according to  claim 1 , wherein a cross-sectional area of the first liquid guide element is greater than an area of the opening. 
     
     
         3 . The ultrasonic atomization assembly according to  claim 1 , wherein:
 the first liquid guide element comprises a first surface and a second surface opposite to the first surface; and   the first surface is partially exposed to the opening, and the second surface is in contact with the ultrasonic atomization sheet.   
     
     
         4 . The ultrasonic atomization assembly according to  claim 1 , wherein:
 the ultrasonic atomization sheet comprises a first surface in contact with the first liquid guide element, and a second surface opposite to the first surface; and   the first electrode is arranged on the first surface, and the second electrode is arranged on the second surface; or the first electrode is arranged on the first surface and extends along a side wall of the ultrasonic atomization sheet to the second surface, and the second electrode is arranged on the second surface.   
     
     
         5 . The ultrasonic atomization assembly according to  claim 1 , wherein:
 the atomization sleeve is made of a conductive material; and   the atomization sleeve further comprises an abutting portion, and the abutting portion is in contact with the first electrode to form an electrical connection.   
     
     
         6 . The ultrasonic atomization assembly according to  claim 5 , wherein both the limiting portion and the abutting portion extend radially toward the atomization sleeve. 
     
     
         7 . The ultrasonic atomization assembly according to  claim 6 , wherein a distance between the limiting portion and the abutting portion is less than a thickness of the first liquid guide element. 
     
     
         8 . The ultrasonic atomization assembly according to  claim 5 , wherein the limiting portion and the abutting portion are arranged in a stepped shape along an extension direction from one end of the atomization sleeve to the other end of the atomization sleeve. 
     
     
         9 . The ultrasonic atomization assembly according to  claim 5 , wherein:
 the ultrasonic atomization assembly further comprises an electrical connector accommodated in the atomization sleeve; and   one end of the electrical connector is in contact with the second electrode to form an electrical connection, and the other end of the electrical connector extends toward the other end of the atomization sleeve.   
     
     
         10 . The ultrasonic atomization assembly according to  claim 9 , wherein:
 the ultrasonic atomization assembly further comprises a resistor board accommodated in the atomization sleeve; and   the resistor board comprises a first electrical connection end directly or indirectly electrically connected to the atomization sleeve and a second electrical connection end directly or indirectly electrically connected to the electrical connector.   
     
     
         11 . The ultrasonic atomization assembly according to  claim 9 , wherein:
 the ultrasonic atomization assembly further comprises an elastic element accommodated in the atomization sleeve; and   the elastic element is spaced between the electrical connector and the atomization sleeve and is in elastic contact with the ultrasonic atomization sheet.   
     
     
         12 . The ultrasonic atomization assembly according to  claim 9 , wherein:
 the ultrasonic atomization assembly further comprises an elastic conductive element accommodated in the atomization sleeve; and   the elastic conductive element is directly or indirectly electrically connected to the atomization sleeve, the elastic conductive element is directly or indirectly electrically connected to the electrical connector, and the elastic conductive element is in elastic contact with the ultrasonic atomization sheet.   
     
     
         13 . The ultrasonic atomization assembly according to  claim 5 , wherein:
 the other end of the atomization sleeve is bent inward to form a coupling portion; or   the ultrasonic atomization assembly further comprises a coupling portion accommodated in the atomization sleeve, wherein the coupling portion is in contact with an inner wall of the atomization sleeve to form an electrical connection.   
     
     
         14 . The ultrasonic atomization assembly according to  claim 1 , wherein the atomization sleeve is made of a non-conductive material. 
     
     
         15 . (canceled) 
     
     
         16 . An ultrasonic atomizer comprising a liquid storage cavity storing a liquid substrate and the ultrasonic atomization assembly according to  claim 1 , wherein the liquid storage cavity is in direct or indirect fluid communication with the first liquid guide element. 
     
     
         17 . The ultrasonic atomizer according to  claim 16 , wherein:
 the ultrasonic atomizer further comprises a second liquid guide element and a third liquid guide element;   the third liquid guide element is in fluid communication with the liquid storage cavity to absorb the liquid substrate stored in the liquid storage cavity;   one end of the second liquid guide element is in contact with the third liquid guide element, and the other end of the second liquid guide element is in contact with the first liquid guide element, to cause the liquid substrate to be transferred from the liquid storage cavity to the first liquid guide element; and   the first liquid guide element and the third liquid guide element are made of flexible porous materials, and the second liquid guide element is made of a solid porous material.   
     
     
         18 . The ultrasonic atomizer according to  claim 16 , wherein:
 the ultrasonic atomizer further comprises a second liquid guide element, a third liquid guide element, and a liquid temporary storage space;   one end of the third liquid guide element is in fluid communication with the liquid storage cavity to absorb the liquid substrate stored in the liquid storage cavity, and the other end of the third liquid guide element is in communication with the liquid temporary storage space;   one end of the second liquid guide element is in contact with the liquid temporary storage space, and the other end of the second liquid guide element is in contact with the first liquid guide element, to cause the liquid substrate to be transferred from the liquid storage cavity to the first liquid guide element; and   wherein the first liquid guide element and the third liquid guide element are made of flexible porous materials, and the second liquid guide element is made of a solid porous material.   
     
     
         19 . The ultrasonic atomizer according to  claim 17 , wherein:
 the second liquid guide element further comprises a cotton pressing portion;   the second liquid guide element is in contact with the first liquid guide element through the cotton pressing portion; and   an end of the second liquid guide element provided with the cotton pressing portion is further provided with an air guide groove and an airflow channel port.   
     
     
         20 . An ultrasonic atomizer comprising:
 a liquid storage cavity, configured to store a liquid substrate;   a third liquid guide element, configured to be in fluid communication with the liquid storage cavity to absorb the liquid substrate stored in the liquid storage cavity;   a second liquid guide element, configured to receive the liquid substrate absorbed by the third liquid guide element;   a first liquid guide element, in contact with the second liquid guide element, to absorb the liquid substrate from the second liquid guide element; and   an ultrasonic atomization assembly, comprising an ultrasonic atomization sheet, wherein the ultrasonic atomization sheet is in contact with the first liquid guide element to ultrasonically atomize the liquid substrate in the first liquid guide element to form a liquid mist, wherein   the first liquid guide element and the third liquid guide element are made of flexible porous materials, and the second liquid guide element is made of a solid porous material; and the second liquid guide element further comprises a cotton pressing portion, the second liquid guide element is in contact with the first liquid guide element through the cotton pressing portion, and an end of the second liquid guide element provided with the cotton pressing portion is further provided with an air guide groove and an airflow channel port.   
     
     
         21 . The ultrasonic atomizer according to  claim 20 , wherein a liquid temporary storage space is spaced between the second liquid guide element and the third liquid guide element. 
     
     
         22 - 26 . (canceled)