Fragrance diffusion equipment

Abstract

The utility model provides a fragrance diffusion equipment, including air pump, first shell, second shell, third shell, liquid storage bottle and the atomizing head subassembly that is provided with air supply channel, the atomizing head subassembly one end is connected with the liquid storage bottle, the atomizing head subassembly includes atomizing core, and the atomizing core is connected with the liquid storage bottle. The air pump is used for supplying air to an air outlet of the atomizing core after being communicated with the air supply channel, one end of the first shell is connected with the second shell, the other end of the first shell is connected with the third shell, the first shell is provided with a first containing cavity with an opening, and the third shell is provided with a second containing cavity with an opening. The atomizing head assembly and the liquid storage bottle are connected and then enter the first containing cavity from the opening, an installation space is formed among the first shell, the second shell and the third shell, and the air pump is installed in the installation space. The atomization head assembly, the liquid storage bottle and the air pump can be formed in the structure module, core components of the fragrance diffusion equipment can be rapidly installed, the assembly structure is simple, efficiency is high, and disassembly and repair are convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of fragrance equipment technology, specifically to a fragrance diffuser. Background Technology

[0002] With increasing demands for indoor environmental quality, aroma diffusers, which improve air quality by atomizing aromatic substances, are widely used in public spaces such as hotels, shopping malls, and offices. Traditional aroma diffusers primarily rely on the siphon principle to deliver essential oils, using an atomizing core to atomize liquid fragrances and employing an air pump to diffuse the aromatic substances into the air. A typical structure consists of core components such as an atomizing component, an essential oil storage bottle, an air pump system, and the device casing.

[0003] To achieve optimal atomization and minimize noise, diffusers are typically constructed by assembling multiple components in stages. Multiple housings are then used to secure the atomizing assembly, air pump, and to block noise from the air pump. During production, the various components and housings involved in the atomizing assembly undergo multiple assembly steps, resulting in a fragmented structure and cumbersome assembly, significantly reducing assembly efficiency. Furthermore, the complex assembly structure not only increases material costs but also necessitates layer-by-layer disassembly for maintenance, significantly increasing the difficulty of later maintenance. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a diffuser device that solves the problem that the core components of the above-mentioned diffuser device, such as the atomizing component and the shell, need to undergo multiple step-by-step assembly processes, resulting in low assembly efficiency and inconvenient later maintenance.

[0005] To solve the above-mentioned technical problems, the technical solution used in this utility model is as follows:

[0006] The present invention discloses a diffuser comprising a first housing, a second housing, a third housing, a liquid storage bottle, an air pump, and an atomizing head assembly having an air supply channel. One end of the atomizing head assembly is connected to the liquid storage bottle, and the atomizing head assembly includes an atomizing core. The air pump is connected to the air supply channel and is used to supply air to the air outlet of the atomizing core. One end of the first housing is connected to the second housing, and the other end of the first housing is connected to the third housing. The first housing has a first receiving cavity with an open end. After the atomizing head assembly is connected to the liquid storage bottle, it enters the first receiving cavity through the open end and is fixed in the first receiving cavity. An installation space is formed between the first housing, the second housing, and the third housing, and the air pump is installed in the installation space.

[0007] Preferably, it also includes a fan, which is disposed on the second housing and located between the second housing and the third housing;

[0008] The first housing is provided with a first through hole facing the fan, the atomizing head assembly is provided with a mist outlet and an air duct, the air inlet end of the air duct is connected to the first through hole, the air outlet end of the air duct is located around the mist outlet, and the fan is used to blow air into the air inlet end of the air duct.

[0009] The opening is located at the end where the first housing and the second housing are connected.

[0010] More preferably, the side of the second housing facing the third housing is provided with elastic fixing clips on both sides of the fan, and the fan is fixed between the fixing clips.

[0011] More preferably, the second housing is provided with a second through hole facing the fan, the second through hole being located above the fan and adjacent to the fixing clip;

[0012] And / or, the side of the second housing facing the third housing is provided with a number of limiting members spaced apart on the periphery of the fan.

[0013] Preferably, it also includes a fan, which is disposed on the third housing and located between the second housing and the third housing;

[0014] The first housing is provided with a first through hole facing the fan, the atomizing head assembly is provided with a mist outlet and an air duct, the air inlet end of the air duct is connected to the first through hole, the air outlet end of the air duct is located around the mist outlet, and the fan is used to blow air into the air inlet end of the air duct.

[0015] The opening is located at the end where the first shell and the third shell are connected.

[0016] Preferably, the third housing is provided with a first fixing seat connected thereto. The first fixing seat is located on one side of the first housing and extends toward the second housing. The air pump is suspended on the first fixing seat by a plurality of flexible support legs.

[0017] More preferably, the extension direction of the plurality of flexible support legs is perpendicular to the insertion direction of the liquid storage bottle; the first housing is provided with a third through hole, the air pump is provided with an air outlet pipe, the air outlet pipe is fitted with a Z-shaped air supply hose and connected to the first end of the air supply hose, the outer surface of the second end of the air supply hose is provided with a first retaining ring and a second retaining ring extending radially along that end, and the first retaining ring and the second retaining ring are spaced apart along the axial direction of the second end of the air supply hose;

[0018] After the first retaining ring and the second retaining ring are tightly attached to both sides of the third through hole, the second end of the gas supply hose is connected to the first housing, and the air inlet end of the gas supply channel is inserted into the second end along the axial direction of the second end of the gas supply hose and then connected to the air pump.

[0019] Preferably, a plurality of spaced liquid level detection electrodes are installed on the outer surface of the first housing, and the aroma diffuser calculates the liquid level height in the storage bottle based on the detection signals of the liquid level detection electrodes.

[0020] More preferably, the first housing is cylindrical, and an elongated plane or groove extending from the third housing to the second housing is provided on the outer surface of the first housing, and the liquid level detection electrode is attached to the elongated plane or groove.

[0021] More preferably, the plurality of liquid level detection electrodes are arranged in at least two groups, each group of liquid level detection electrodes includes 2 to 5 liquid level detection electrodes, each group of liquid level detection electrodes is arranged in a straight line along the height direction and is spaced apart, each group of liquid level detection electrodes has the same number and is arranged at the same height in a one-to-one correspondence, and different groups of liquid level detection electrodes are distributed at intervals along the circumference of the first housing on the outer surface of the first housing.

[0022] In a further preferred embodiment, in each group of liquid level detection electrodes, the bottommost liquid level detection electrode is a reference electrode, and the others are liquid level electrodes;

[0023] When detecting liquid level height, the current frequency change Cex of the reference electrode is collected, and the frequency change Cey of the liquid level electrode at the current liquid level is collected. ， Calculate the liquid level height H = 1 / K*Cey ， / Cex, where K is a preset coefficient; Cex = Ceb - Cea, Ceb is the current frequency of the reference electrode, Cea is the no-load frequency of the reference electrode, and Cey is the no-load frequency of the reference electrode. ， =Ced-Cec, where Ced is the current frequency of the level electrode at the current liquid level, and Cec is the no-load frequency of the level electrode at the current liquid level.

[0024] An electrode for determining the liquid level is a level electrode for the current liquid level that meets the following condition: the frequency change of the electrode for determining the liquid level, Cey. ， The value is greater than the preset value and is the highest level electrode; or the frequency change of the undetermined level detection electrode is Cey. ， The frequency change of the liquid level detection electrode that is greater than the preset value and is at a higher position (Cey) ， Less than or equal to the preset value.

[0025] More preferably, a liquid level detection circuit board is fixedly mounted on the outer surface of the first housing, and the plurality of liquid level detection electrodes are all connected to the liquid level detection circuit board through wires. A second fixing seat is also provided on the outer surface of the first housing. The second fixing seat is used to fix the power control board of the aroma diffuser. The aroma diffuser also includes a main control circuit board. The liquid level detection circuit board and the power control board are both electrically connected to the main control circuit board through wires. A plurality of wire fixing buckles for fixing the wires are also integrally formed on the outer surface of the first housing.

[0026] Preferably, the first housing is cylindrical, and the third housing has an annular groove corresponding to the first housing. The first housing is inserted into the annular groove and is detachably connected to the third housing.

[0027] More preferably, a slot or buckle is provided on the outer wall of the end of the first housing that is inserted into the third housing, and a buckle or slot is correspondingly provided on the inner wall of the annular groove. After the first housing is inserted into the annular groove, it is rotated so that the slot and buckle are engaged.

[0028] Preferably, the aroma diffuser further includes a housing;

[0029] The outer casing includes a cylindrical main casing and a cover. The first casing, second casing, third casing, and air pump are inserted into and fixed within the cylindrical main casing. The cover is connected to the cylindrical main casing and encloses the first casing, second casing, and third casing within the outer casing. The cover has an opening corresponding to the vent. The atomizing head assembly and the liquid storage bottle are connected and inserted into the first casing through the opening; or...

[0030] The outer shell includes a middle shell and two side cover plates. The middle shell is elongated and bendable. The middle shell covers the outside of the first shell, the second shell, and the third shell to form a rectangular frame. The two side cover plates are respectively connected to the front and rear sides of the rectangular frame. The middle shell is provided with an opening corresponding to the opening. After the atomizing head assembly and the liquid storage bottle are connected, they are inserted into the first shell through the opening.

[0031] Compared with the prior art, the main advantages of the aroma diffuser device described in this utility model are as follows:

[0032] After the atomizing head assembly and the liquid storage bottle are connected, they can enter the first receiving cavity from the opening and be fixed in the first receiving cavity, so that the atomizing head assembly and the liquid storage bottle form a structural whole with the first housing, which facilitates further installation.

[0033] The second housing is connected to one end of the first housing, and the other end of the first housing is connected to the third housing. An installation space is formed between the first housing, the second housing, and the third housing. The air pump is installed in the installation space. Thus, the installation of the core components of the aroma diffuser, including the atomizing head assembly, the liquid storage bottle, and the air pump, can be quickly completed by connecting the first housing, the second housing, and the third housing. On the one hand, the assembly structure is simple, and on the other hand, the atomizing head assembly, the liquid storage bottle, and the air pump are formed in a regular structural module, which facilitates rapid assembly and greatly improves assembly efficiency. At the same time, the atomizing head assembly, the liquid storage bottle, and the air pump are independent of each other in the structural module, making disassembly and repair convenient.

[0034] Furthermore, the air pump is installed in the installation space located between the first housing, the second housing, and the third housing, which allows for a reasonable spatial arrangement and compact size of the structural module. The second housing and the third housing are connected through the two ends of the first housing, which on the one hand ensures the stability of the structural module support structure, and on the other hand, the first housing not only serves to accommodate and protect the atomizing head assembly and the liquid storage bottle, but also protects the air pump located between the second housing and the third housing, preventing the air pump from being accidentally touched and loosened during subsequent installation. Attached Figure Description

[0035] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0036] Figure 1 A perspective structural diagram of a fragrance diffuser provided for an embodiment of this utility model;

[0037] Figure 2 The internal structure of a diffuser provided in this embodiment of the present invention is three-dimensional. Figure 1 ;

[0038] Figure 3 The internal structure of a diffuser provided in this embodiment of the present invention is three-dimensional. Figure 2 ;

[0039] Figure 4 The internal structure of a diffuser provided in this embodiment of the present invention is three-dimensional. Figure 3 ;

[0040] Figure 5 The internal structure of a diffuser provided in this embodiment of the present invention is three-dimensional. Figure 4 ;

[0041] Figure 6 A schematic diagram of the assembly state of the first housing and the second housing provided in an embodiment of this utility model;

[0042] Figure 7 A schematic diagram showing the assembly state of the atomizing head assembly and the liquid storage bottle provided for an embodiment of this utility model;

[0043] Figure 8 A perspective structural diagram of the third housing provided for an embodiment of this utility model;

[0044] Figure 9 A schematic diagram illustrating the assembly process of the atomizing head assembly, the liquid storage bottle, and the first housing provided in this embodiment of the utility model;

[0045] Figure 10 A partial structural schematic diagram showing the installation relationship between the liquid storage bottle and the first housing provided in an embodiment of this utility model;

[0046] Figure 11 An exploded structural diagram of the outer shell provided for an embodiment of this utility model;

[0047] Figure 12 This is a schematic diagram showing the alignment of the liquid level electrode and the reference electrode in this invention. Figure 1 ;

[0048] Figure 13 This is a schematic diagram showing the alignment of the liquid level electrode and the reference electrode in this invention. Figure 2 ;

[0049] Reference numerals: liquid storage bottle 100, atomizing head assembly 200, air supply channel 201, atomizing core 202, mist outlet 203, air duct 204, air pump 300, first housing 400, second housing 500, third housing 600, fan 700, outer shell 800, middle shell 801, side cover plate 802, belly plate 803;

[0050] 1. Slot; 2. Opening; 3. First receiving cavity; 4. Buckle; 5. Fixing clip; 6. First through hole; 7. Second through hole; 8. Third through hole; 9. Limiting component; 10. First fixing seat; 11. Gas supply hose; 12. First retaining ring; 13. Second retaining ring; 14. Long strip plane; 15. Liquid level detection electrode; 151. Reference electrode; 152. Liquid level electrode; 16. Second fixing seat; 17. Circuit fixing buckle; 18. Annular groove; 19. Opening; 20. Liquid level detection circuit board; 21. Power control board; 22. Main control circuit board; 23. Flexible connector; 24. Seat plate; 25. Hanger; 26. Seat cushion; 27. Groove. Detailed Implementation

[0051] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0052] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0053] This embodiment provides a fragrance diffuser, such as Figures 1 to 11 As shown, the device includes a liquid storage bottle 100, an air pump 300, a first housing 400, a second housing 500, a third housing 600, and an atomizing head assembly 200 with an air supply channel 201. One end of the atomizing head assembly 200 is connected to the liquid storage bottle 100. The atomizing head assembly 200 includes an atomizing core 202. The air pump 300 is connected to the air supply channel 201 and is used to supply air to the air outlet of the atomizing core 202. One end of the first housing 400 is connected to the second housing 500, and the other end of the first housing 400 is connected to the third housing 600. The first housing 400 is provided with a first receiving cavity 3 with an opening 2 at one end. After the atomizing head assembly 200 is connected to the liquid storage bottle 100, it enters the first receiving cavity 3 through the opening 2 and is fixed in the first receiving cavity 3. An installation space is formed between the first housing 400, the second housing 500, and the third housing 600, and the air pump 300 is installed in the installation space.

[0054] In this embodiment, after the atomizing head assembly 200 and the liquid storage bottle 100 are connected, they can enter the first receiving cavity 3 from the opening 2 and be fixed in the first receiving cavity 3, so that the atomizing head assembly 200 and the liquid storage bottle 100 and the first housing 400 form a structural whole, which facilitates further installation.

[0055] The second housing 500 is connected to one end of the first housing 400, and the other end of the first housing 400 is connected to the third housing 600. An installation space is formed between the first housing 400, the second housing 500, and the third housing 600. The air pump 300 is installed in this installation space. Thus, by simply connecting the first housing 400, the second housing 500, and the third housing 600, the installation of the core components of the aroma diffuser, including the liquid storage bottle 100, the atomizing head assembly 200, and the air pump 300, can be quickly completed. On the one hand, the assembly structure is simple, and on the other hand, the atomizing head assembly 200, the liquid storage bottle 100, and the air pump 300 are formed in a regular structural module, which facilitates rapid assembly and greatly improves assembly efficiency. At the same time, the atomizing head assembly 200, the liquid storage bottle 100, and the air pump 300 are independent of each other in the structural module, making disassembly and repair convenient.

[0056] Furthermore, the air pump 300 is installed in the installation space between the first housing 400, the second housing 500, and the third housing 600, which makes the spatial arrangement of the above-mentioned structural modules more reasonable and compact. The second housing 500 and the third housing 600 are connected by the two ends of the first housing 400. On the one hand, this ensures the stability of the structural module support structure. On the other hand, in addition to accommodating and protecting the liquid storage bottle 100 and the atomizing head assembly 200, the first housing 400 also protects the air pump 300 located between the second housing 500 and the third housing 600, preventing the air pump 300 from being accidentally touched and loosened during subsequent installation.

[0057] It should be noted that, in a preferred embodiment, one end of the first housing 400 and the second housing 500 can be connected as an integral structure, or they can be configured as a detachable connection; in order to reduce production materials and costs and improve installation convenience, the other end of the first housing 400 is detachably connected to the third housing 600. Typically, the first housing 400, the second housing 500 and the third housing 600 are made of plastic.

[0058] In a preferred embodiment, such as Figure 4 and Figure 6 As shown, it also includes a fan 700, which is disposed on the second housing 500 and located between the second housing 500 and the third housing 600; the first housing 400 is provided with a first through hole 6 facing the fan 700, the atomizing head assembly 200 is provided with a mist outlet 203 and an air duct 204, the air inlet end of the air duct 204 is connected to the first through hole 6, the air outlet end of the air duct 204 is disposed around the mist outlet 203, the fan 700 is used to blow air to the air inlet end of the air duct 204, and the opening 2 is located at the end where the first housing 400 and the second housing 500 are connected.

[0059] In this embodiment, the air blown by the fan 700 can flow through the first through hole 6 to the air duct 204 and exit from the air outlet of the air duct 204 located around the mist outlet 203, causing the atomized particles drifting out of the mist outlet 203 to diffuse further away, thereby expanding the radiation space of the aroma diffuser.

[0060] In a further preferred embodiment, such as Figure 6 As shown, on the side of the second housing 500 facing the third housing 600, there are elastic fixing clips 5 on both sides of the fan 700. The fan 700 is fixed between the fixing clips 5. During installation, the fan 700 can be fixed between the fixing clips 5 on both sides with a little force. The installation is convenient and quick.

[0061] In a further preferred embodiment, the second housing 500 is provided with a second through hole 7 facing the fan 700. The second through hole 7 is located above the fan 700 and adjacent to the fixing clip 5. The second through hole 7 can connect the air around the fan 700, which is beneficial to accelerating the heat dissipation rate of the fan 700.

[0062] On the side of the second housing 500 facing the third housing 600, several limiting members 9 are spaced apart around the fan 700 to improve the stability of the fan 700 during operation. Specifically, the ends of the limiting members 9 are as follows: Figure 5 The beveled surface is designed to guide the installation of the 700 fan and facilitate quick assembly.

[0063] In another preferred embodiment, a fan 700 is also included. The fan 700 is disposed on the third housing 600 and located between the second housing 500 and the third housing 600. The first housing 400 is provided with a first through hole 6 facing the fan 700. The atomizing head assembly 200 is provided with a mist outlet 203 and an air duct 204. The air inlet end of the air duct 204 is connected to the first through hole 6, and the air outlet end of the air duct 204 is disposed around the mist outlet 203. The fan 700 is used to blow air to the air inlet end of the air duct 204. The opening 2 is located at the end where the first housing 400 and the third housing 600 are connected, that is, the fan 700 can also be disposed on the third housing 600 to achieve the above equivalent blowing effect.

[0064] In another preferred embodiment, such as Figure 4 and Figure 5As shown, the third housing 600 is provided with a first fixing seat 10 connected thereto. The first fixing seat 10 is located on one side of the first housing 400 and extends towards the second housing 500. In this embodiment, the first fixing seat 10 is L-shaped and can be connected to the third housing 600 by a detachable connection method such as screws. The air pump 300 is suspended on the first fixing seat 10 by multiple flexible support legs, which can reduce the vibration and noise caused by the air pump 300 colliding with the surroundings during operation. During installation, since there is a large open space between the second housing 500 and the third housing 600 for installation operations, it is permissible to first connect the first fixing seat 10 to the third housing 600, then connect the third housing 600 to the first housing 400, and finally fix the air pump 300 to the first fixing seat 10.

[0065] In another preferred embodiment, the extension direction of the plurality of flexible support legs is perpendicular to the insertion direction of the liquid storage bottle 100. For example, Figure 5 As shown, the first fixed base 10 is provided with multiple flexible connectors 23. The first end of each flexible connector 23 is connected to the air pump 300, and the second end of each flexible connector 23 is connected to the first fixed base 10, allowing the air pump 300 to be installed and fixed on the first fixed base 10 in a "suspended" state. The flexibility of the flexible connectors 23 allows the air pump 300 to be fixedly installed on the first fixed base 10 in a "suspended" state, thereby reducing the vibration transmitted from the air pump 300 to the first fixed base 10 and the outer casing 800. This reduces noise and noise pollution to the environment, thus avoiding impact on people's health and daily life and user inconvenience, and improving the user experience. Specifically, the "suspended" state of the air pump 300 avoids the impact noise generated by the air pump 300 vibrating and making hard contact with the surrounding component walls during operation, effectively reducing the noise during product operation. In some embodiments, each flexible connector 23 is evenly distributed on the side of the air pump 300, making the force between each flexible connector 23 more uniform, thereby reducing the vibration transmitted from the air pump 300 to the first fixed seat 10 and further reducing noise.

[0066] Moreover, the air pump 300 will generate vibration when it is working. This suspension setting through the flexible connector 23 will offset some of the vibration, thereby reducing the noise caused by the overall vibration of the product and the vibration between the placement platform when the product is working.

[0067] In some embodiments of this utility model, four flexible connectors 23 may be provided, and in this embodiment, the air pump 300 is rectangular, with each flexible connector 23 evenly distributed at the four corners of the air pump 300. Using only four flexible connectors 23 is sufficient to reduce vibration and noise in the rectangular air pump 300, saving manufacturing costs and ensuring more uniform force distribution among each flexible connector 23.

[0068] In a further preferred embodiment, such as Figure 2 , 4 and Figure 6 As shown, the extension direction of multiple flexible support legs is perpendicular to the insertion direction of the liquid storage bottle 100. The first housing 400 is provided with a third through hole 8. The air pump 300 is provided with an air outlet pipe. The air outlet pipe is fitted with a Z-shaped air supply hose 11 and is connected to the first end of the air supply hose 11. The outer surface of the second end of the air supply hose 11 is provided with a first retaining ring 12 and a second retaining ring 13 extending radially along that end. The first retaining ring 12 and the second retaining ring 13 are spaced apart along the axial direction of the second end of the air supply hose 11.

[0069] After the first retaining ring 12 and the second retaining ring 13 are tightly attached to both sides of the third through hole 8, the second end of the air supply hose 11 is connected to the first housing 400, and the air inlet end of the air supply channel 201 is inserted into the second end along the axial direction of the second end of the air supply hose 11 and then connected to the air pump 300.

[0070] In this embodiment, when the air pump 300 is running and supplying air to the air supply hose 11, the first end of the Z-shaped air supply hose 11 will be tightly fitted onto the air outlet pipe of the air pump 300 due to the reaction force from its second end, and will not easily fall off, thus ensuring the stability of the air supply.

[0071] In another preferred embodiment, a plurality of spaced liquid level detection electrodes 15 are installed on the outer surface of the first housing 400, and the aroma diffuser calculates the liquid level height in the storage bottle 100 based on the detection signals of the liquid level detection electrodes 15.

[0072] In a further preferred embodiment, such as Figure 6 and Figure 10 As shown, the first housing 400 is cylindrical, and an elongated plane 14 or groove 27 extending from the third housing 600 to the second housing 500 is provided on the outer surface of the first housing 400. The liquid level detection electrode 15 is attached to the elongated plane 14 or groove 27. The liquid level detection electrode 15 extends along the liquid level height direction, thereby enabling the measurement of any liquid level height in the storage bottle 100.

[0073] like Figure 12 and 13 As shown, multiple liquid level detection electrodes 15 are arranged into at least two groups. Each group of liquid level detection electrodes includes 2 to 5 liquid level detection electrodes 15. Each group of liquid level detection electrodes is arranged in a straight line along the height direction and is spaced apart to avoid mutual interference between the electrodes. The number of liquid level detection electrodes in each group is the same and they are arranged at the same height in a one-to-one correspondence. Different groups of liquid level detection electrodes are distributed at intervals along the circumference of the first housing 400 on the outer surface of the first housing 400.

[0074] In a further preferred embodiment, in each group of liquid level detection electrodes, the lowest liquid level detection electrode 15 is a reference electrode 151, and the others are liquid level electrodes 152; both the reference electrode 151 and the liquid level electrodes 152 are non-contact capacitive sensors, and the reference electrode 151 and the liquid level electrodes 152 are attached to the outer wall of the liquid storage bottle 100 for use; when the liquid level changes, the frequency of the electrodes changes.

[0075] When detecting the liquid level, the current frequency change Cex of the reference electrode 151 is collected, and the frequency change Cey of the liquid level detection electrode at the current liquid level is collected. ， Calculate the liquid level height H = 1 / K*Cey ， / Cex, where K is a preset coefficient; Cex = Ceb - Cea, Ceb is the current frequency of reference electrode 151, Cea is the no-load frequency of reference electrode 151, and Cey is the no-load frequency of reference electrode 151. ， =Ced-Cec, where Ced is the current frequency of the liquid level electrode 152 at the current liquid level, and Cec is the no-load frequency of the liquid level electrode 152 at the current liquid level. It should be noted that the frequency values ​​of the reference electrode 151 and the liquid level electrode 152 can be the average of the frequencies of the corresponding height electrodes in each group of liquid level detection electrodes.

[0076] The level electrode to be determined is the level electrode 152 that meets the following condition: the frequency change of the level electrode to be determined, Cey. ， The value is greater than the preset value and is the highest level electrode 152; or the frequency change of the undetermined level detection electrode Cey ， The frequency change of the liquid level detection electrode that is greater than the preset value and is at a higher position (Cey) ， Less than or equal to the preset value.

[0077] The liquid level electrode to be determined that meets the following conditions is the liquid level electrode 152 for the current liquid level:

[0078] (1) Frequency change of the electrode at the undetermined liquid level, Cey ， When the value is greater than the preset value and is the highest liquid level electrode 152, the liquid level electrode 152 is regarded as the liquid level electrode 152 of the current liquid level.

[0079] For reference Figure 10 The preset value is set to 0. The liquid level electrodes 152 include a first liquid level electrode 152a and a second liquid level electrode 152b. The second liquid level electrode 152b is relatively closer to the bottle opening, so the second liquid level electrode 152b is the highest liquid level electrode 152. When the frequency change of the second liquid level electrode 152b is >0, the bottle is full, and the second liquid level electrode 152b is the liquid level electrode 152 of the current liquid level.

[0080] (2) Frequency change of the electrode at the undetermined liquid level, Cey， The frequency change of the liquid level electrode 152, which is greater than the preset value and is at a higher position, is Cey. ， When the value is less than or equal to the preset value, the liquid level electrode 152 is regarded as the liquid level electrode 152 of the current liquid level.

[0081] refer to Figure 13 When the preset value is set to 0, a first liquid level electrode 152a, a second liquid level electrode 152b, and a third liquid level electrode 152c are sequentially arranged from the bottom of the bottle to the top. When the frequency change of the third liquid level electrode 152c is ≤0, it indicates that the bottle is not full. When the frequency change of the second liquid level electrode 152b is >0, the second liquid level electrode 152b is the liquid level electrode 152 for the current liquid level.

[0082] You can also refer to Figure 10 When the frequency change of the second liquid level electrode 152b is ≤0 and the frequency change of the first liquid level electrode 152a is >0, the first liquid level electrode 152a is the liquid level electrode 152 of the current liquid level.

[0083] The frequency change Cey of the current liquid level electrode 152 satisfies the following condition: Cey ， =Ced-Cec, where Ced is the current frequency of the level electrode 152 at the current liquid level, and Cec is the no-load frequency of the level electrode 152 at the current liquid level.

[0084] For example when Figure 10 When the first liquid level electrode 152a is the current liquid level electrode 152, the frequency of the detected first liquid level electrode 152a is Ced.

[0085] If the liquid level electrode 152 and the reference electrode 151 are arranged in at least two groups, and there are at least two liquid level electrodes 152 for the current liquid level, then Ced is the average of the current frequencies of multiple liquid level electrodes 152 for the current liquid level. For example, when the first liquid level electrode 152a is the liquid level electrode 152 for the current liquid level, Ced is the average of the current frequencies of multiple first liquid level electrodes 152a.

[0086] The frequency change Cex of the current reference electrode 1513 satisfies the following condition: Cex = Ceb - Cea, where Ceb is the current frequency of the reference electrode 151 and Cea is the no-load frequency of the reference electrode 151.

[0087] If the level electrode 152 and the reference electrode 151 are arranged in at least two groups, and there are at least two reference electrodes 151, Ceb takes the average of the current frequencies of multiple reference electrodes 151.

[0088] In embodiments where the liquid level electrodes 152 and reference electrodes 151 are arranged in at least two groups, the number of liquid level electrodes 152 in each group is the same and they are arranged at the same height in a one-to-one correspondence, and multiple reference electrodes 151 are arranged at the same height. Figure 13 Understanding: the left group has two liquid level electrodes 152, and the right group also has two liquid level electrodes 152. The two first liquid level electrodes 152a on the left and right are at the same height, and the two reference electrodes 151 on the left and right are at the same height. In this embodiment, left and right refer to... Figure 13 Let's take a look.

[0089] In a preferred embodiment, one end of the reference electrode 151 is flush with the bottom of the storage bottle 100, and one end of the liquid level electrode 152 is flush with the top of the storage bottle 100. This allows for accurate detection of the liquid level from the bottom to the top of the storage bottle 100. The liquid level electrode 152 and the reference electrode 151 are distributed along the height of the storage bottle 100, resulting in a split arrangement of electrodes on the storage bottle 100. This avoids excessively long electrodes and large electrode areas, which could lead to increased errors. By arranging the electrodes in a distributed manner, the area of ​​each electrode is reduced, thus reducing errors.

[0090] In a further preferred embodiment, such as Figure 3 and 11 As shown, a liquid level detection circuit board 20 is fixedly mounted on the outer surface of the first housing 400. Multiple liquid level detection electrodes 15 are connected to the liquid level detection circuit board 20 via wires. A second fixing seat 16 is also provided on the outer surface of the first housing 400. The second fixing seat 16 is used to fix the power control board 21 of the aroma diffuser. The aroma diffuser also includes a main control circuit board 22. The liquid level detection circuit board 20 and the power control board 21 are electrically connected to the main control circuit board 22 via wires. Multiple wire fixing buckles 17 are also integrally formed on the outer surface of the first housing 400 to fix the aforementioned wires, so that the cables connected to the control board are wound in a regular manner, making the wiring clear and orderly and avoiding mess. The specific structure of the second fixing seat 16 is not specifically limited and can be varied in form, and can be adapted to the object to be fixed.

[0091] In another preferred embodiment, such as Figure 6 and 8 As shown, the first housing 400 is cylindrical, and the third housing 600 has an annular groove 18 corresponding to the first housing 400. The first housing 400 is inserted into the annular groove 18 and is detachably connected to the third housing 600. In a further preferred embodiment, a slot 1 or a buckle 4 is provided on the outer wall of the end of the first housing 400 that is inserted into the third housing 600, and a buckle 4 or a slot 1 is correspondingly provided on the inner wall of the annular groove. After the first housing 400 is inserted into the annular groove 18 and rotated, the slot 1 and the corresponding buckle 4 can be engaged. This connection method makes installation easy and convenient.

[0092] Based on the above embodiments, in a preferred embodiment, the aroma diffuser further includes a housing 800; the housing 800 can be cylindrical or tubular, or as shown in the image. Figure 1 and Figure 2 The rectangle shown.

[0093] The outer casing 800 includes a cylindrical main casing and a cover. The first casing 400, the second casing 500, the third casing 600 and the air pump 300 are inserted into the cylindrical main casing and fixed. The cover is connected to the cylindrical main casing and encloses the first casing 400, the second casing 500 and the third casing 600 inside the outer casing 800. The cover is provided with an opening 19 corresponding to the opening 2. After the atomizing head assembly 200 and the liquid storage bottle 100 are connected, they are inserted into the first casing 400 through the opening 19.

[0094] Or such as Figure 11 As shown, the outer shell 800 includes a middle shell 801 and two side cover plates 802. The middle shell 801 is elongated and bendable. The outer shell 800 is preferably a sheet metal part with high plasticity, which is lightweight and not easily damaged. The middle shell 801 covers the outside of the first shell 400, the second shell 500, and the third shell 600, forming a rectangular frame. The two side cover plates 802 are respectively connected to the front and rear sides of the rectangular frame. The middle shell 801 is provided with an opening 19 corresponding to the opening 2. After the atomizing head assembly 200 and the liquid storage bottle 100 are connected, they are inserted into the first shell 400 through the opening 19. It should be noted that the longitudinal section of the rectangular frame formed by the middle shell 801 is generally rectangular, but not strictly a right-angled rectangle. Its corners can be rounded or chamfered.

[0095] In this embodiment, after the atomizing head assembly 200, the liquid storage bottle 100 and the air pump 300 form an assembly module, the outer shell 800 that can be set around the outer ring side of the assembly module can simplify the installation of the outer shell 800 and further improve the assembly efficiency. On the other hand, it can also facilitate the customized setting of the front and rear side cover plates 802 of the assembly module, meet the diverse needs of customers for the side cover plates 802 or appearance of the aroma diffuser, and thus improve the versatility of the aroma diffuser.

[0096] In a further preferred embodiment, such as Figure 11 As shown, a web plate 803 is provided on the inner side of the middle shell 801, and the web plate 803 is disposed between the second shell 500 and the third shell 600 along the circumferential extension direction of the middle shell 801. The side cover plate 802 is connected to the web plate 803. By providing the web plate 803, the impact deformation resistance of the middle shell 801 and the outer shell 800 can be improved. At the same time, connecting the side cover plate 802 to the web plate 803 can also increase the stability of the side cover plate 802. Of course, optionally, the side cover plate 802 can also be connected to the second shell 500, the third shell 600 and the web plate 803 located on its periphery respectively.

[0097] Furthermore, the side cover 802 includes a frame 190 and a body 191. The frame 190 is connected to the second housing 500, the third housing 600, and the web 803, respectively, and the body 191 is bonded to the frame 190. This avoids the contradiction between connection strength and panel integrity caused by connection stress when directly connecting the body 191 to the second housing 500, the third housing 600, and the web 803. It greatly facilitates the selection of the material and type of the body 191, and allows for easy selection of materials such as mirror panels and LCD panels. In addition, in this embodiment, for touch screen panels that require the installation of touch circuit boards, the frame 190 can also be used to install a mounting plate 24 for fixing the circuit board, thereby facilitating the reasonable arrangement of various control boards, including the touch circuit board, and improving the space utilization inside the housing 800.

[0098] It should be noted that the aroma diffuser in this embodiment can be placed directly on a flat surface or hung on a wall. Specifically, a hanger 25 can be provided on one of the side cover plates 802 to fix the aroma diffuser on the wall; or, a sound-absorbing and vibration-damping cushion 26 can be provided at the bottom of the outer casing 800.

[0099] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0100] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0101] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A diffuser, comprising a liquid storage bottle, an air pump, and an atomizing head assembly with an air supply channel, wherein one end of the atomizing head assembly is connected to the liquid storage bottle, the atomizing head assembly includes an atomizing core, and the air pump, connected to the air supply channel, supplies air to the air outlet of the atomizing core, characterized in that: The aroma diffuser also includes a first housing, a second housing, and a third housing. One end of the first housing is connected to the second housing, and the other end of the first housing is connected to the third housing. The first housing is provided with a first receiving cavity with an open end. After the atomizing head assembly and the liquid storage bottle are connected, they enter the first receiving cavity through the open end and are fixed in the first receiving cavity. An installation space is formed between the first housing, the second housing, and the third housing, and the air pump is installed in the installation space.

2. The fragrance diffusing apparatus according to claim 1, characterized by: It also includes a fan, which is disposed on the second housing and located between the second housing and the third housing; The first housing is provided with a first through hole facing the fan, the atomizing head assembly is provided with a mist outlet and an air duct, the air inlet end of the air duct is connected to the first through hole, the air outlet end of the air duct is located around the mist outlet, and the fan is used to blow air into the air inlet end of the air duct. The opening is located at the end where the first housing and the second housing are connected.

3. The fragrance diffusing apparatus according to claim 2, characterized by: The second housing has elastic fixing clips on both sides of the fan on the side facing the third housing, and the fan is fixed between the fixing clips.

4. The fragrance diffusing apparatus according to claim 3, characterized by: The second housing is provided with a second through hole facing the fan, the second through hole being located above the fan and adjacent to the fixing clip; And / or, the side of the second housing facing the third housing is provided with a number of limiting members at intervals around the fan.

5. The fragrance diffusing apparatus according to claim 1, characterized by: It also includes a fan, which is disposed on the third housing and located between the second housing and the third housing; The first housing is provided with a first through hole facing the fan, the atomizing head assembly is provided with a mist outlet and an air duct, the air inlet end of the air duct is connected to the first through hole, the air outlet end of the air duct is located around the mist outlet, and the fan is used to blow air into the air inlet end of the air duct. The opening is located at the end where the first shell and the third shell are connected. 6.The fragrance diffusing apparatus of claim 1, wherein: The third housing is provided with a first fixing seat connected thereto. The first fixing seat is located on one side of the first housing and extends toward the second housing. The air pump is suspended on the first fixing seat by multiple flexible support legs.

7. The fragrance diffusing apparatus according to claim 6, characterized by: The extension direction of the plurality of flexible support legs is perpendicular to the insertion direction of the liquid storage bottle; the first housing is provided with a third through hole, the air pump is provided with an air outlet pipe, the air outlet pipe is fitted with a Z-shaped air supply hose and connected to the first end of the air supply hose, the outer surface of the second end of the air supply hose is provided with a first retaining ring and a second retaining ring extending radially along that end, the first retaining ring and the second retaining ring are spaced apart along the axial direction of the second end of the air supply hose; After the first retaining ring and the second retaining ring are tightly attached to both sides of the third through hole, the second end of the gas supply hose is connected to the first housing, and the air inlet end of the gas supply channel is inserted into the second end along the axial direction of the second end of the gas supply hose and then connected to the air pump. 8.The fragrance diffusing apparatus of claim 1, wherein: The outer surface of the first housing is equipped with a plurality of spaced liquid level detection electrodes, and the aroma diffuser calculates the liquid level height in the storage bottle based on the detection signals of the liquid level detection electrodes.

9. The fragrance diffusing apparatus according to claim 8, characterized by: The first housing is cylindrical, and an elongated plane or groove extending from the third housing to the second housing is provided on the outer surface of the first housing. The liquid level detection electrode is attached to the elongated plane or groove. 10.The fragrance diffusing apparatus according to claim 8, characterized in that: The plurality of liquid level detection electrodes are arranged into at least two groups, each group of liquid level detection electrodes includes 2 to 5 liquid level detection electrodes, each group of liquid level detection electrodes is arranged in a straight line along the height direction and is spaced apart, each group of liquid level detection electrodes has the same number and is arranged at the same height in a one-to-one correspondence, and different groups of liquid level detection electrodes are distributed at intervals along the circumference of the first housing on the outer surface of the first housing.

11. The fragrance diffusing apparatus according to claim 10, characterized by: In each group of liquid level detection electrodes, the bottommost liquid level detection electrode is the reference electrode, and the others are liquid level electrodes. 12.The fragrance diffusing apparatus according to claim 8, characterized in that: A liquid level detection circuit board is fixedly mounted on the outer surface of the first housing. The plurality of liquid level detection electrodes are all connected to the liquid level detection circuit board through wires. A second fixing seat is also provided on the outer surface of the first housing. The second fixing seat is used to fix the power control board of the aroma diffuser. The aroma diffuser also includes a main control circuit board. The liquid level detection circuit board and the power control board are both electrically connected to the main control circuit board through wires. A plurality of wire fixing buckles for fixing the wires are also integrally formed on the outer surface of the first housing.

13. The aroma diffuser according to claim 1, characterized in that: The first housing is cylindrical, and the third housing is provided with an annular groove corresponding to the first housing. The first housing is inserted into the annular groove and is detachably connected to the third housing.

14. The fragrance diffusing apparatus according to claim 13, characterized by: The outer wall of the end of the first housing that is inserted into the third housing is provided with a slot or a buckle, and the inner wall of the annular groove is correspondingly provided with a buckle or a slot. After the first housing is inserted into the annular groove, it is rotated so that the slot and the buckle are engaged.

15. The fragrance diffusing apparatus according to any one of claims 1 to 14, characterized by: The aroma diffuser also includes a housing; The outer casing includes a cylindrical main casing and a cover. The first casing, second casing, third casing, and air pump are inserted into and fixed within the cylindrical main casing. The cover is connected to the cylindrical main casing and encloses the first casing, second casing, and third casing within the outer casing. The cover has an opening corresponding to the vent. The atomizing head assembly and the liquid storage bottle are connected and inserted into the first casing through the opening; or... The outer shell includes a middle shell and two side cover plates. The middle shell is elongated and bendable. The middle shell covers the outside of the first shell, the second shell, and the third shell to form a rectangular frame. The two side cover plates are respectively connected to the front and rear sides of the rectangular frame. The middle shell is provided with an opening corresponding to the opening. After the atomizing head assembly and the liquid storage bottle are connected, they are inserted into the first shell through the opening.

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