Portable aromatherapy device

Abstract

The utility model relates to the technical field of aromatherapy devices, in particular to a portable aromatherapy device. The portable aromatherapy device comprises a shell, a PTC (Positive Temperature Coefficient) thermistor, a gas volatilization component, a plug bush shell and a main control circuit board, one end of the shell is provided with a first opening, the main control circuit board and the PTC thermistor are installed in the shell, and the PTC thermistor is electrically connected with the main control circuit board; the gas volatilization assembly is inserted into the shell through the first opening; the gas volatilization assembly is of a porous structure to adsorb aromatherapy liquid. The gas volatilization assembly is installed in the plug bush shell, the PTC thermistor is inserted into the plug bush shell, and the gas volatilization assembly is arranged on the PTC thermistor in a sleeving mode or arranged on the side of the PTC thermistor or surrounds the side of the PTC thermistor. An aroma volatilization through hole is formed in one end, close to the first opening, of the plug bush shell. The aromatherapy device disclosed by the utility model can ensure good and continuous gas volatilization characteristics on the basis of ensuring miniaturization and portability.

Description

TECHNICAL FIELD

[0001] The utility model relates to portable aromatherapy device technical field, especially a portable aromatherapy device. BACKGROUND

[0002] The aromatherapy device can volatilize fragrance gas, and is suitable for various places such as family, hotel room, lobby, corridor and guest room, has the functions such as relieving pressure, removing peculiar smell and purifying air. The current aromatherapy device adopts the mode of PTC thermistor heating to accelerate the volatilization of aromatherapy. The PTC thermistor can make the temperature of the body constant in a small change range without any temperature control circuit. This is the temperature heating body characteristic of the PTC thermistor, compared with other fixed resistance heating bodies, the PTC thermistor can simplify many control circuits and is beneficial to the miniaturization and portability of the aromatherapy device.

[0003] The PTC ceramic body with good permeability can make the fragrance volatilization effect better. However, to improve the heating power under a certain voltage, the PTC ceramic thermistor needs to have a low enough zero power resistance value, but the PTC ceramic body with good permeability will inevitably make the resistivity too high and the zero power resistance value too large. This is contradictory to the low enough zero power resistance value required by high heating efficiency.

[0004] Therefore, it is urgent to design a portable aromatherapy device with good permeability. UTILITY MODEL CONTENTS

[0005] The utility model embodiment provides a kind of portable aromatherapy device, to solve the problem of urgent need to design a portable aromatherapy device with good permeability in prior art.

[0006] The utility model discloses a portable aromatherapy device, including shell, PTC thermistor, gas volatilization component, plug sleeve shell and main control circuit board;The shell one end has first opening, and main control circuit board and PTC thermistor are installed in shell, and PTC thermistor is electrically connected with main control circuit board;Gas volatilization component is inserted in shell by first opening;Gas volatilization component has porous structure to adsorb aromatherapy liquid;Gas volatilization component is installed in plug sleeve shell, and PTC thermistor is inserted into plug sleeve shell, and gas volatilization component is set on PTC thermistor, or be set at the side of PTC thermistor, or be surrounded at the side of PTC thermistor;Plug sleeve shell is close to the end of first opening and is provided with aroma volatilization through hole.

[0007] Optionally, the portable aromatherapy device includes a first circuit board installed below the gas volatilization component, the PTC thermistor is installed on the first circuit board, and the main control circuit board is installed below the first circuit board;The first circuit board is electrically connected with the main control circuit board.

[0008] Optionally, a first convex rib is arranged on the inner wall surface of the shell, and the shell comprises an upper mounting cavity communicating with the first opening and a lower mounting cavity away from the first opening, based on the first convex rib; the gas volatilization component and the first circuit board are mounted in the upper mounting cavity, and the main control circuit board is mounted in the lower mounting cavity.

[0009] Optionally, the first circuit board is supported on the first convex rib.

[0010] Optionally, a second opening is arranged at an end of the sleeve shell away from the first opening, a bottom supporting portion extending to the middle region of the sleeve shell is arranged along the edge of the second opening, and the bottom supporting portion supports the gas volatilization component.

[0011] Optionally, one end of the PTC thermistor is welded on the first circuit board, and the other end of the PTC thermistor extends out of the second opening and is assembled with the gas volatilization component.

[0012] Optionally, the gas volatilization component is detachably inserted into the shell through the first opening.

[0013] Optionally, an elastic connecting terminal is arranged on one side of the main control circuit board close to the first circuit board, an electrode is arranged on one side of the first circuit board corresponding to the elastic connecting terminal, and the elastic connecting terminal elastically abuts against the electrode.

[0014] Optionally, the gas volatilization component is made of porous ceramic material, porous high polymer material or loose fiber material.

[0015] Optionally, the volatilization component has a heat-permeable film layer on the surface, the heat-permeable film layer seals the volatilization of the aromatherapy liquid when not heated, and the aromatherapy liquid can volatilize through the heat-permeable film layer after being heated.

[0016] Compared with the prior art, the portable aromatherapy device has the following beneficial effects: the PTC thermistor is used to provide a constant heating temperature for the gas volatilization component, and the control circuit for heating is simplified, which is conducive to the miniaturization and portability of the aromatherapy device. On this basis, the portable aromatherapy device further comprises the gas volatilization component with a porous structure capable of adsorbing the aromatherapy liquid and cooperating with the PTC thermistor. After the gas volatilization component is inserted into the shell through the sleeve shell, the gas volatilization component is sleeved on the PTC thermistor, arranged on the side of the PTC thermistor, or surrounded on the side of the PTC thermistor. The PTC thermistor provides a constant heating temperature for the gas volatilization component. The gas volatilization component with the porous structure has good permeability. After the aroma volatilizes from the gas volatilization component, the aroma volatilizes through the aroma volatilization through hole, thereby ensuring the good permeability of the portable aromatherapy device. Therefore, the aromatherapy device can ensure good and continuous gas volatilization characteristics on the basis of miniaturization and portability. BRIEF DESCRIPTION OF DRAWINGS

[0017] The technical scheme of the utility model will be explained in further detail below in combination with the drawings and embodiments, wherein:

[0018] Figure 1 is the internal schematic view of the portable aromatherapy device of the utility model embodiment;

[0019] Figure 2 is the brief schematic view of the PTC thermistor and gas volatilization assembly of the utility model embodiment;

[0020] Figure 3 is Figure 2 the top view schematic view of the PTC thermistor and gas volatilization assembly of the utility model embodiment;

[0021] Figure 4 is the brief schematic view of the PTC thermistor and gas volatilization assembly of another utility model embodiment;

[0022] Figure 5 is Figure 4 the top view schematic view of the PTC thermistor and gas volatilization assembly of the utility model embodiment.

[0023] The various reference signs in the drawings are:

[0024] 1, shell; 11, first opening; 12, first convex rib; 13, upper mounting cavity; 14, lower mounting cavity; 2, PTC thermistor; 3, gas volatilization assembly; 4, main control circuit board; 41, elastic connection terminal; 5, first circuit board; 51, electrode; 6, bottom cover; 7, plug sleeve shell; 71, aroma volatilization through hole; 72, second opening; 73, bottom support part. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The preferred embodiments of the utility model will be described in detail in combination with the drawings.

[0026] The utility model embodiment provides a kind of portable aromatherapy device, as Figures 1 to 5 shown, portable aromatherapy device includes shell 1, PTC thermistor 2, gas volatilization assembly 3 and main control circuit board 4;Shell 1 one end has first opening 11, main control circuit board 4 and PTC thermistor 2 are installed in shell 1, PTC thermistor 2 is electrically connected with main control circuit board 4.

[0027] The gas volatilization assembly 3 is inserted into the shell 1 through the first opening 11; the gas volatilization assembly 3; the gas volatilization assembly 3 is installed in the socket shell 7, the PTC thermistor 2 is inserted into the socket shell 7, and the gas volatilization assembly 3 is sleeved on the PTC thermistor 2, or is arranged on the side of the PTC thermistor 2, or surrounds the side of the PTC thermistor 2; the socket shell 7 is provided with a gas volatilization through hole 71 at one end close to the first opening 11.

[0028] The portable aromatherapy device provided by the utility model adopts the PTC thermistor 2 to provide a constant heating temperature for the gas volatilization assembly 3, and simultaneously can simplify the control circuit of heating, and is favorable for miniaturization and portability of the aromatherapy device. On this basis, the portable aromatherapy device further provides the gas volatilization assembly 3 with a porous structure and capable of adsorbing aromatherapy liquid in cooperation with the PTC thermistor 2, the gas volatilization assembly 3 is sleeved on the PTC thermistor 2, or is arranged on the side of the PTC thermistor 2, or surrounds the side of the PTC thermistor 2 after being loaded into the shell 1 through the socket shell 7, the PTC thermistor 2 provides a constant heating temperature for the gas volatilization assembly 3, the gas volatilization assembly 3 with the porous structure has good permeability, and the gas volatilization assembly 3 volatilizes the aroma, and the aroma is dissipated through the gas volatilization through hole 71, so that the portable aromatherapy device has good permeability. Therefore, the aromatherapy device can ensure good and continuous gas volatilization characteristics on the basis of miniaturization and portability.

[0029] Specifically, the PTC thermistor 2 is a resistor with a positive temperature coefficient, and the resistance value thereof increases with the increase of temperature. The PTC thermistor 2 is a barium titanate series semiconductor ceramic, and different doping materials and sintering curves show different resistivities and Curie temperatures. The characteristic that the resistance value of the PTC ceramic thermistor changes in a step manner above the Curie temperature can make the body temperature constant in a small change range without the help of any temperature control circuit when a wide voltage range (such as ±30% of the rated voltage) fluctuation is applied, which is the temperature-stabilized heating body characteristic of the PTC thermistor 2. This characteristic can simplify many control circuits. And for other heating bodies with a fixed resistance value (R), it can be known from P=U 2 / R that the power change range is too large, and a control circuit is needed to have a stable power output.

[0030] Specifically, for the positional relationship between the gas volatilization assembly 3 and the PTC thermistor 2, in an embodiment, the gas volatilization assembly 3 is sleeved on the PTC thermistor 2, that is, as shown in Figure 2 and Figure 3As shown, the gas volatilization component 3 can be in a cylindrical shape with only one end open, and the PTC thermistor 2 is inserted into the gas volatilization component 3 through the one end, and the gas volatilization component 3 covers the top and the side of the PTC thermistor 2. In another embodiment, the gas volatilization component 3 is arranged beside the PTC thermistor 2, for example, only one gas volatilization component 3 is arranged beside the PTC thermistor 2, or two or more gas volatilization components 3 are arranged in intervals around the PTC thermistor 2. In another embodiment, the gas volatilization component 3 is arranged around the PTC thermistor 2, as shown in Figure 4 and Figure 5 As shown, the gas volatilization component 3 can be in a cylindrical shape with both ends open, and the PTC thermistor 2 is inserted into the gas volatilization component 3 through one end, and the gas volatilization component 3 covers the side of the PTC thermistor 2, and does not cover the top. The gas volatilization component 3 and the PTC thermistor 2 can be arranged in close contact, or there can be a small gap.

[0031] The material of the gas volatilization component 3 can be porous ceramic material, or porous polymer material, or loose fiber material. The gas volatilization component 3 adsorbs the aromatherapy liquid through the porous structure thereon, and volatilizes to form fragrance after being heated.

[0032] Further, the volatilization component 3 has a heat-permeable film layer on the surface, which seals the volatilization of the aromatherapy liquid when not heated, and the aromatherapy liquid can volatilize through the heat-permeable film layer when heated. When the volatilization component 3 is not heated by the PTC thermistor, the heat-permeable film layer is not heated, and at this time the heat-permeable film layer is in a sealing state, which can seal the volatilization of the aromatherapy liquid, and the aromatherapy liquid cannot volatilize through the heat-permeable film layer, which can avoid unnecessary volatilization of the aromatherapy liquid; when the volatilization component 3 is heated by the PTC thermistor, the heat-permeable film layer is heated, and at this time the heat-permeable film layer is in a permeable state, and the aromatherapy liquid can volatilize through the heat-permeable film layer. For example, the heat-permeable film layer can be a paraffin film layer with fiber material added, in the heated state, the activity of molecules increases, and the fragrance will diffuse faster from the gaps between the fiber materials, while in the non-heated state, the activity of molecules is much smaller, and the fragrance is not easy to diffuse from the gaps between the fiber materials. The melting point of paraffin is about 85°C, and the heating temperature of the PTC thermistor can be controlled at about 40°C, so that the heating of the PTC thermistor will not cause the paraffin to melt, but only accelerate the diffusion of the perfume from the gaps between the fiber materials.

[0033] The aroma volatile through holes 71 on the plug-in shell 7 can be provided with a plurality of, here is not specifically limited. The gas volatile assembly 3 is detachably inserted into the shell 1 through the first opening 11. The gas volatile assembly 3 can be replaced. The two sub-housings 1 of the plug-in shell 7 can also be detachably fitted, so only the gas volatile assembly 3 needs to be replaced. Of course, in another embodiment, the gas volatile assembly 3 can also be replaced as a whole.

[0034] Specifically, the portable aromatherapy device includes a first circuit board 5 installed below the gas volatile assembly 3, a PTC thermistor 2 installed on the first circuit board 5, and a main control circuit board 4 installed below the first circuit board 5; the first circuit board 5 is electrically connected with the main control circuit board 4. By installing the PTC thermistor 2 on the first circuit board 5 and installing the main control circuit board 4 below the first circuit board 5, the vertical stacking of electronic components is achieved. This layout reduces the size of the entire aromatherapy device, facilitating miniaturization and portability. The close electrical connection between the first circuit board 5 and the main control circuit board 4 simplifies circuit design, reduces the use of connection lines, and reduces manufacturing costs and complexity. Moreover, the PTC thermistor 2 is installed on the first circuit board 5, and the main control circuit board 4 is below it. The PTC thermistor 2 generates heat when it is working, and the main control circuit board 4 is usually sensitive to temperature, so this layout helps to protect the main control circuit board 4 from high temperature and prolong the service life of the aromatherapy device. Specifically, the PTC thermistor 2 can be soldered to the first circuit board 5, and the two electrodes of the PTC thermistor 2 are respectively connected to the electrodes 51. Specifically, one end of the PTC thermistor is soldered to the first circuit board, and the other end extends from the second opening and is assembled with the gas volatile assembly.

[0035] A first rib 12 is provided on the inner wall of the shell 1, and the shell 1 includes an upper mounting cavity 13 communicating with the first opening 11 and a lower mounting cavity 14 away from the first opening 11, with the first rib 12 as a boundary; the gas volatile assembly 3 and the first circuit board 5 are installed in the upper mounting cavity 13, and the main control circuit board 4 is installed in the lower mounting cavity 14. By setting the first rib 12 as a boundary, the internal space of the shell 1 is divided into the upper mounting cavity 13 and the lower mounting cavity 14, achieving functional zoning. The upper mounting cavity 13 is used to install the gas volatile assembly 3 and the first circuit board 5, while the lower mounting cavity 14 is used to install the main control circuit board 4. This zoning design makes the installation position of each component more clear, facilitating assembly and maintenance. More importantly, it avoids the mixed volatile of various odors. The bottom of the lower mounting cavity 14 can be further provided with a bottom cover 6. During assembly, the main control circuit board 4 can be installed into the shell 1 through the bottom opening of the shell 1, and then sealed by the bottom cover 6. This facilitates the installation of the main control circuit board 4.

[0036] The first circuit board 5 is supported on the first protruding rib 12. The first protruding rib 12, as a part of the inner wall of the shell 1, provides a support point for the first circuit board 5, facilitating the installation of the first circuit board 5. The first circuit board 5 can be further fixed in the upper mounting cavity 13 by high-temperature glue or screws.

[0037] The second opening 72 is provided at the end of the sleeve shell 7 away from the first opening 11. The edge of the second opening 72 is provided with a bottom support part 73 extending to the middle region of the sleeve shell 7, and the bottom support part 73 supports the gas volatilization assembly 3. By providing the second opening 72 at the end of the sleeve shell 7 away from the first opening 11, and providing the bottom support part 73 at the edge of the second opening 72, such a design provides a limiting support platform for the gas volatilization assembly 3, facilitating the installation and limiting of the gas volatilization assembly 3. Specifically, one end of the PTC thermistor 2 extends from the second opening 72 and cooperates with the gas volatilization assembly, and the other end is electrically connected with the first circuit board 5.

[0038] The main control circuit board 4 is provided with an elastic connection terminal 41 on the side close to the first circuit board 5. The first circuit board 5 is provided with an electrode 51 on the side corresponding to the elastic connection terminal 41, and the elastic connection terminal 41 elastically abuts against the electrode 51. By abutting the elastic connection terminal 41 and the electrode 51, the main control circuit board 4 and the first circuit board 5 can be kept in stable electrical connection. The elastic connection terminal 41 may, for example, be a pogopin pin. The elastic connection terminal 41 and the electrode 51 can both be connection terminals without positive and negative poles, which will not be described in detail here.

[0039] Further, the portable aromatherapy device further comprises a bottom cover which is detachably sleeved on the base to protect necessary components of the aromatherapy device, such as rechargeable batteries, switch keys, charging ports, indicator lights, etc. These components can be arranged in a conventional manner, which will not be described in detail here.

[0040] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; all these modifications and substitutions shall fall within the protection scope of the claims of the present application.

Claims

1. A portable aromatherapy device, characterized by, The portable aromatherapy device comprises a shell, a PTC thermistor, a gas volatilization component, a sleeve shell and a main control circuit board; the shell has a first opening at one end; the main control circuit board and the PTC thermistor are installed in the shell; the PTC thermistor is electrically connected with the main control circuit board; The gas volatilization component is inserted into the shell through the first opening; the gas volatilization component has a porous structure to adsorb aromatherapy liquid; the gas volatilization component is installed in the sleeve shell; the PTC thermistor is inserted into the sleeve shell; the gas volatilization component is sleeved on the PTC thermistor, or is arranged beside the PTC thermistor, or surrounds the PTC thermistor; the sleeve shell is provided with a gas volatilization through hole at one end close to the first opening.

2. The portable aromatherapy device of claim 1, wherein, The portable aromatherapy device comprises a first circuit board installed below the gas volatilization component; the PTC thermistor is installed on the first circuit board; the main control circuit board is installed below the first circuit board; the first circuit board is electrically connected with the main control circuit board.

3. The portable aromatherapy device of claim 2, wherein, A first protruding rib is arranged on the inner wall surface of the shell; the shell comprises an upper installation cavity communicating with the first opening and a lower installation cavity away from the first opening, with the first protruding rib as a boundary; the gas volatilization component and the first circuit board are installed in the upper installation cavity; the main control circuit board is installed in the lower installation cavity.

4. The portable aromatherapy device of claim 3, wherein, The first circuit board is supported on the first protruding rib.

5. The portable aromatherapy device of any one of claims 2 to 4, wherein, The sleeve shell is provided with a second opening at one end away from the first opening; the second opening is provided with a bottom support part extending towards the middle region of the sleeve shell along the edge; the bottom support part supports the gas volatilization component.

6. The portable aromatherapy device of claim 5, wherein, One end of the PTC thermistor is welded on the first circuit board; the other end extends out of the second opening and is assembled with the gas volatilization component.

7. The portable aromatherapy device of any one of claims 1 to 4, wherein, The gas volatilization component is detachably inserted into the shell through the first opening.

8. The portable aromatherapy device of any one of claims 2 to 4, wherein, The main control circuit board is provided with an elastic connection terminal on one side close to the first circuit board; the first circuit board is provided with an electrode on one side corresponding to the elastic connection terminal; the elastic connection terminal is elastically abutted on the electrode.

9. The portable aromatherapy device of any one of claims 1 to 4, wherein, The gas volatilization component is made of porous ceramic material, porous high polymer material or loose fiber material.

10. The portable aromatherapy device of any one of claims 1-4, wherein, The volatilization component has a heat-permeable film layer on the surface; the heat-permeable film layer seals the volatilization of the aromatherapy liquid when not heated; the aromatherapy liquid can volatilize through the heat-permeable film layer after being heated.

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