Patent Publication Number: US-2018043382-A1

Title: Handheld Aroma Diffuser

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application claims the benefit of Hong Kong Patent Application No. 16109552.3 filed on Aug. 10, 2016, the entire content of which is hereby incorporated by reference. 
     TECHNICAL FIELD 
     The present invention relates to an aroma diffuser, particularly to a handheld aroma diffuser. 
     DESCRIPTION OF THE BACKGROUND 
     Following the improvement of people&#39;s living standard, air conditions are widely used, so people are liable to tight skin, dry mouth and tongue, cough, common cold and other air conditioning diseases. After plant essential oil or medical liquid is added to water, the aroma diffuser splits water and the dissolved plant essential oil or medical liquid into tiny misty particles and diffuses them into the air to keep the room in high humidity and full of a fragrant smell and make the plant essential oil or medical liquid more easily absorbed by human body. The aroma diffuser plays a role in disease treatment, soul nurturing, health care and physical therapy, and particularly shows an excellent auxiliary effect on treatment of skin allergy, insomnia, common cold, cough and asthma. 
     At present, the atomizing devices of the existing handheld aroma diffusers are not replaceable. After the mixed liquid of water, essential oil and so on in an atomizing device is used up, the atomizing device will be discarded. It cannot be used cyclically, so the service life is short and use cost is high. 
     SUMMARY OF THE INVENTION 
     The object of the present invention is to overcome the shortcoming of the prior art and provide an aroma diffuser with a replaceable atomizing device. 
     The present invention provides a handheld aroma diffuser, comprising a body. The body comprises a body housing as well as a protective rear casing and a battery protecting casing that are respectively connected to the body housing in a detachable manner; a placing groove and a battery groove are disposed on the body housing, an atomizing device is contained in the placing groove, and a battery device is contained in the battery groove and electrically connected to the atomizing device; the protective rear casing covers the placing groove, and the battery protecting casing covers the battery groove; a mist discharge orifice communicated with the placing groove is disposed on the body housing and connected to the diffusion orifice of the atomizing device in an abutted manner. 
     Further, the atomizing device comprises a water tank element and an atomizing element, and the water tank element is connected to the atomizing element in a detachable manner. 
     Further, the water tank element comprises a water tank body, a liquid storage cavity is formed inside the water tank body, and a liquid discharge orifice is disposed on one side face of the water tank body and communicated with the liquid storage cavity; there is a notch on the liquid discharge orifice; the atomizing element comprises an atomizing casing and an atomizing module mounted inside the atomizing casing; the diffusion orifice is disposed on one side face of the atomizing casing and runs through the atomizing casing and the atomizing module; a buckle is disposed at one end of the diffusion orifice, and a lug is disposed on the buckle; the buckle is snapped into the liquid discharge orifice and the lug is snapped into the notch; the other end of the diffusion orifice is connected to the mist discharge orifice in an abutted manner. 
     Further, the atomizing casing comprises an atomizing front casing and an atomizing rear casing connected to the atomizing front casing in a snapped manner; the atomizing module comprises a seal ring, an atomizing piece mounted to the seal ring, and a left spring piece and a right spring piece respectively connected to the anode and cathode of the atomizing piece, the seal ring is mounted to the atomizing front casing, and the left spring piece and the right spring piece are mounted to the atomizing rear casing; two spring piece openings respectively corresponding to the left spring piece and the right spring piece are disposed on the atomizing front casing. 
     Further, the atomizing front casing comprises a front body and two front mounting portions formed on the left and right sides of the front body, and two spring piece outlets are disposed on the front mounting portions; the seal ring is mounted to the front body; the atomizing rear casing comprises a rear body and two rear mounting portions formed on the left and right sides of the rear body, and the left spring piece and the right spring piece are respectively mounted to the two rear mounting portions. 
     Further, front slots are disposed on the front body, front blocks are contained in the front slots, and front hooks are formed at the terminals of the front blocks; front lugs are disposed on the two front mounting portions respectively, and front through holes are disposed on the front lugs; rear lugs are disposed on the rear body, and rear through holes are disposed on the rear lugs; the rear lugs match the front slots, and the front hooks are coupled with the rear through holes in a snapped manner; rear slots are disposed on the two rear mounting portions respectively, rear blocks are contained in the rear slots, and rear hooks are formed at the terminals of the rear blocks; the front lugs match the rear slots, and the rear hooks are coupled with the front through holes in a snapped manner. 
     Further, notches are disposed on the seal ring, and the front blocks match the notches. 
     Further, a seal ring is sleeved on the buckle, clamped between the water tank body and the atomizing casing, and received in a concave cavity on one side face of the water tank body. 
     Further, the water tank element further comprises a water tank cover, the upper end of the water tank body forms a liquid inlet end, and the water tank cover covers the liquid inlet end; the liquid inlet end has a liquid inlet communicated with the liquid storage cavity. 
     Further, a connector is disposed on the liquid inlet end, and one end of the connector is connected to the water tank cover. 
     Further, an O ring is disposed between the water tank cover and the liquid inlet end. 
     Further, the battery device comprises a battery box mounted inside the battery groove, a substrate mounted to the battery box and two electrodes; the substrate is electrically connected to the battery box, and two conductive springs are disposed on the substrate; the two electrodes are respectively mounted inside the placing groove, one ends of the two electrodes are respectively connected to the two conductive springs in an abutted manner, and the other ends pass through the two spring piece openings and are respectively connected to the left spring piece and the right spring piece in an abutted manner. 
     Further, a button is disposed on the substrate, and one end of the button is received in a mounting hole of the body housing. 
     Further, the battery box comprises a body, batteries mounted inside the body and two battery chips, and the two battery chips are respectively connected to an anode and a cathode of the batteries. 
     Further, the body housing comprises a protective middle casing and a protective front casing mounted to the protective middle casing; the placing groove and a battery groove are disposed on the protective middle casing; the mist discharge orifice is disposed on the protective front casing, and a connecting hole communicated with the placing groove and the mist discharge orifice is disposed on the protective middle casing; a seal ring is disposed between the mist discharge orifice and the connecting hole, and one end of the seal ring passes through the connecting hole, is located inside the placing groove and is connected to the diffusion orifice of the atomizing device in an abutted manner. 
     Further, buckles are respectively disposed on the protective rear casing and the battery protecting casing, catches corresponding to the buckles are disposed on the protective middle casing, and the buckles are coupled with the catches in a snapped manner. 
     Compared with the prior art, the present invention has the following beneficial effect: The protective rear casing and the battery protecting casing of the present invention are connected to the body housing in a detachable manner, and the atomizing device is contained in the placing groove of the body housing, so the atomizing device and the battery device can be easily repaired and replaced. After the mixed liquid of water, essential oil and so on in the atomizing device is used up, the atomizing device may be replaced or water, essential oil and so on may be added to the atomizing device again, or when the atomizing device is damaged, it may be replaced, so the aroma diffuser of the present invention may be used cyclically to lengthen service life and reduce use cost. The present invention features a simple structure and good appearance and is handy, movable, portable and suitable for popularization. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a front view of a handheld aroma diffuser provided in an embodiment of the present invention; 
         FIG. 2  is a rear view of the handheld aroma diffuser shown in  FIG. 1 ; 
         FIG. 3  is an exploded view of the handheld aroma diffuser shown in  FIG. 1 ; 
         FIG. 4  is a sectional view of the handheld aroma diffuser shown in  FIG. 1 ; 
         FIG. 5  is an exploded view of a body housing of the handheld aroma diffuser shown in  FIG. 3 ; 
         FIG. 6  is a structural schematic of the body housing shown in  FIG. 5 ; 
         FIG. 7  is a structural schematic of a water tank element of the atomizing device shown in  FIG. 3 ; 
         FIG. 8  is an exploded view of the water tank element shown in  FIG. 7 ; 
         FIG. 9  is a structural schematic of an atomizing element of the atomizing device shown in  FIG. 3 ; 
         FIG. 10  is an exploded view of the atomizing element shown in  FIG. 9 ; 
         FIG. 11  is an exploded view of the battery device shown in  FIG. 4 . 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     Below the present invention will be further described by referring to the accompanying drawings and embodiments. 
     As shown in  FIG. 1 ˜ FIG. 4 , the present invention provides a handheld aroma diffuser  100 , comprising a body  10 . The body  10  is roughly in a shuttle shape, has good appearance and is handy and portable. The body  10  comprises a body housing  11  as well as a protective rear casing  12  and a battery protecting casing  13  that are respectively connected to the body housing  11  in a detachable manner. Catches  75  are disposed at the bottom end of the protective rear casing  12 . Skidproof veins  13   a  are disposed on the battery protecting casing  13  to make for the disassembly and assembly of the protective rear casing  12  and the battery protecting casing  13 . A placing groove  14   a  and a battery groove  14   b  are disposed on the body housing  11 . An atomizing device  15  is contained in the placing groove  14   a.  The shape of the atomizing device  15  roughly matches the shape of the placing groove  14   a.  The protective rear casing  12  covers the placing groove  14   a  and is intended to fix and protect the atomizing device  15 . Therefore, the atomizing device  15  may be replaced only by removing the protective rear casing  12 , thereby reducing use cost and lengthening service life of the aroma diffuser. Therefore, the aroma diffuser may be used cyclically. A mist discharge orifice  17  communicated with the placing groove  14   a  is further disposed on the body housing  11  and connected to the diffusion orifice  18  of the atomizing device  15  in an abutted manner. After the atomizing device  15  splits the mixed liquid of water, essential oil and so on into tiny misty particles, it pushes misty particles to the diffusion orifice  18  and the mist discharge orifice  17  and to the air to keep the room in high humidity and full of a fragrant smell and make the essential oil more easily absorbed by human body. The aroma diffuser plays a role in disease treatment, soul nurturing, health care and physical therapy. A battery device  16  is disposed inside the battery groove  14   b.  The battery protecting casing  13  covers the battery groove  14   b  and is intended to fix and protect the battery device  16 . The battery device  16  is electrically connected to the atomizing device  15  and intended to supply power to the atomizing device  15 . 
     As shown in  FIG. 4 ,  FIG. 5  and  FIG. 6 , the body housing  11  comprises a protective middle casing  64  and a protective front casing  65  mounted to the protective middle casing  64 . Specifically, the protective middle casing  64  is connected to the protective front casing  65  in a snapped manner. The foregoing placing groove  14   a  and battery groove  14   b  are disposed on the protective middle casing  64 . Bosses  71  are disposed on the left and right sides of the bottom surface of the placing groove  14   a  and intended to place the atomizing device  15 . Arrises  70  are disposed on the left and right side walls of the placing groove  14   a  and intended to increase friction with the atomizing device  15  and prevent shake of the atomizing device  15 . The forgoing mist discharge orifice  17  is disposed on the protective front casing  65 . A connecting hole  66  communicated with the placing groove  14   a  and the mist discharge orifice  17  respectively is disposed on the protective middle casing  64 . A seal ring  67  is clamped between the mist discharge orifice  17  and the connecting hole  66  to improve sealing performance. One end of the seal ring  67  passes through the connecting hole  66  and is located inside the placing groove  14   a  and connected to the diffusion orifice  18  of the atomizing device  15  in an abutted manner to make for discharge of misty particles from the mist discharge orifice  17  to the air. 
     As shown in  FIG. 3  and  FIG. 6 , buckles  68  are disposed at the upper end and bottom end of the protective rear casing  12 . The buckles  68  at the bottom end are connected to the catches  75  of the foregoing protective rear casing  12  into an integral body, and their sections are in a shape similar to “&lt;”, as shown in  FIG. 4 . Buckles  68  are disposed at the upper end and bottom end of the battery protecting casing  13 . Catches  69  corresponding to buckles  68  are disposed on the protective middle casing  64  and coupled with the buckles  68  in a snapped manner to make for the disassembly and assembly of the protective rear casing  12  and the battery protecting casing  13 , and for the repair and replacement of the atomizing device  15  and the battery device  16 . 
     As shown in  FIG. 3 ,  FIG. 4 ,  FIG. 7  and  FIG. 8 , the atomizing device  15  comprises a water tank element  19  and an atomizing element  20 . The water tank element  19  comprises a water tank body  21  and a water tank cover  50 . A liquid storage cavity  22  is formed inside the water tank body  21  and intended to store a mixed liquid of water, essential oil and so on. A liquid inlet end  51  is formed at the upper end of the water tank body  21 . The water tank cover  50  covers the liquid inlet end  51 . The liquid inlet end  51  has a liquid inlet  52  communicated with the liquid storage cavity  22 . When the liquid in the liquid storage cavity  22  is used up, liquid may be added to the liquid storage cavity  22  via the liquid inlet  52  to lengthen service life. A connector  53  is disposed on the liquid inlet end  51  and comprises a connector body  53   a  and a connecting piece  53   b  formed integrally with the connector body  53   a.  The connector body  53   a  is in a ring shape and sleeved on the liquid inlet end  51 . The terminal of the connecting piece  53   b  is in a ring shape and sleeved on a convex column  74  at the upper end of the water tank cover  50 . When the water tank cover  50  is open, the connector  53  is intended to connect the water tank cover  50  so that the water tank cover  50  is not easily lost. In this embodiment, an O ring  54  is disposed between the water tank cover  50  and the liquid inlet end  51  to improve sealing performance. 
     A liquid discharge orifice  23  is disposed on one side face of the water tank body  21  and communicated with a liquid storage cavity  22 . The liquid inside the liquid storage cavity  22  may flow out via the liquid discharge orifice  23 . A notch  24  is disposed on the liquid discharge orifice  23 . A concave portion  72  is disposed at the bottom end of the water tank body  21 . 
     As shown in  FIG. 3 ,  FIG. 4 ,  FIG. 9  and  FIG. 10 , the atomizing element  15  comprises an atomizing casing  25  and an atomizing module mounted inside the atomizing casing  25 . The foregoing diffusion orifice  18  is disposed on one side face of the atomizing casing  25  and runs through the atomizing casing  25  and the atomizing module. A buckle  26  is disposed at one end of the diffusion orifice  18  and in a ring shape. A lug  27  is disposed on the buckle  26 . The buckle  26  is snapped into the liquid discharge orifice  23  of the water tank body  21  so that the liquid in the liquid storage cavity  22  can enter the atomizing module via the liquid discharge orifice  23  and the diffusion orifice  18 . The lug  27  is snapped into a notch  24  on the liquid discharge orifice  23 . In this embodiment, a seal ring  30  is sleeved on the buckle  26  to improve sealing performance, clamped between the water tank body  21  and the atomizing casing  25  and located inside a concave cavity  49  on one side face of the water tank body  21 , as shown in  FIG. 7 . The other end of the diffusion orifice  18  is connected to a mist discharge orifice  17  in an abutted manner. 
     A convex portion  73  is disposed at the bottom end of the atomizing casing  25  and matches the concave portion  72  at the bottom end of the water tank body  21 . Thus, the atomizing element  20  and the water tank element  19  are detachable and both of them are replaceable. The disassembly and assembly are convenient. 
     The atomizing casing  25  comprises an atomizing front casing  28  and an atomizing rear casing  29 . The atomizing module comprises a seal ring  30 , an atomizing piece  31  mounted to the seal ring  30 , and a left spring piece  32   a  and a right spring piece  32   b  connected to the anode and cathode of the atomizing piece  31 . The atomizing piece  31  is intended to split liquid into tiny misty particles and push the misty particles out from a diffusion orifice  18  and a mist discharge orifice  17 . The left spring piece  32   a  and the right spring piece  32   b  are intended to connect power supply so that the atomizing piece  31  can generate high-frequency vibration. 
     The atomizing front casing  28  comprises a front body  34  and two front mounting portions  35  formed on the left and right sides of the front body  34 . The front body  34  and the two front mounting portions  35  are formed integrally or separately. The two front mounting portions  35  are mounted symmetrically. Two spring piece outlets  33  are respectively disposed on the two front mounting portions  35 . Front slots  38  are disposed on the front body  34 . In this embodiment, there are three front slots  38 . Front blocks  39  are contained in the front slots  38 . Front hooks  40  are formed at the terminals of the front blocks  39 . Notches  47  are disposed on the seal ring  30 . The front block  39  match the notches  47  and are intended to mount the seal ring  30 . Front lugs  41  are respectively disposed on the two front mounting portions  35 . Front through holes  42  are disposed on the front lugs  41 . 
     The atomizing rear casing  29  comprises a rear body  36  and two rear mounting portions  37  formed on the left and right sides of the rear body  36 . The rear body  36  and the two rear mounting portions  37  are formed integrally or separately. A left spring piece  32   a  and a right spring piece  32   b  are mounted to two rear mounting portions  37  respectively. Two spring piece outlets  33  correspond to the left spring piece  32   a  and the right spring piece  32   b  respectively. Rear lugs  43  are disposed on the rear body  36 . Rear through holes  43   a  are disposed on the rear lugs  43 . The rear lugs  43  match the front slots  38 . Front hooks  40  are coupled with the rear through holes  43   a  in a snapped manner. Rear slots  44  are respectively disposed on the two rear mounting portions  37 . Rear blocks  45  are contained in the rear slots  44 . Rear hooks  46  are formed at the terminals of the rear blocks  45 . Front lugs  41  match the rear slots  44 . Rear hooks  46  are coupled with front through holes  42  in a snapped manner. Thus, the atomizing front casing  28  and the atomizing rear casing  29  are detachable to make for repair and replacement of the atomizing module and lengthen service life. 
     As shown in  FIG. 4  and  FIG. 11 , the battery device  16  comprises a battery box  55  mounted inside a battery groove  14   b,  a substrate  56  mounted to one side face of the battery box  55 , and two electrodes  57 . The substrate  56  is electrically connected to the battery box  55 . A button  59  and two conductive springs  58  are disposed on the substrate  56 . One end of the button  59  is contained in a mounting hole  60  of the body housing  11 . The two electrodes  57  are respectively mounted inside a placing groove  14   a.  As shown in  FIG. 6 , one ends of the two electrodes  57  are respectively connected to the two conductive springs  58  in an abutted manner and the other ends run through two spring piece openings  33  and are connected to the left spring piece  32   a  and the right spring piece  32   b  in an abutted manner. Through the abutted connection between the two conductive springs  58  and the two electrodes  57 , and between the two electrodes  57  and the left spring piece  32   a  and right spring piece  32   b,  a channel is formed between the substrate  56  and the seal ring  31  so that the high frequency current generated by the substrate  56  can be transferred to the atomizing piece  31  and the atomizing piece  31  generates high frequency vibration. 
     In this embodiment, the battery box  55  comprises a body  61 , batteries  62  inside the body  61 , and two battery chips  63   a  and  63   b.  The two battery chips  63   a  and  63   b  are respectively connected to an anode and a cathode of the batteries  62 . In this embodiment, the batteries  62  are three  3 A batteries and replaceable, as shown in  FIG. 3 . Through the two battery chips  63   a  and  63   b,  the three batteries  62  realize series connection and power supply to the substrate  56 . 
     Working principle of the present invention: When the button  59  is pressed, the battery  62  will supply power to the substrate  56 . As the two conductive springs  58  are connected to the two electrodes  57 , and the two electrodes  57  are connected to the left spring piece  32   a  and the right spring piece  32   b,  the high frequency current generated by the substrate  56  is transferred to the atomizing piece  31 . The atomizing piece  31  then generates high frequency vibration. On the one hand, the high frequency vibration of the atomizing piece  31  pats the contacted liquid flowing into the diffusion orifice  18  from the water tank body  21  and splits it into tiny misty particles. On the other hand, the high frequency vibration of the atomizing piece  31  will generate certain push on its surface, thereby pushing the generated misty particles to the diffusion orifice  18  and the connecting hole  66 , eventually pushing it out of the mist discharge orifice  17  into the air and achieving the function of fumigating and moisturizing. 
     The foregoing embodiments only represent the preferred embodiments of the present invention. Their descriptions are concrete and detailed, but they shall not be therefore understood as limitations to the scope of the present invention patent. It shall be noted that for those skilled in the art, various changes and modifications may be made to the embodiments without departing from the spirit of the present invention, such as: combinations of different features of the embodiments. All these shall be in the protective scope of the present invention.