Skin treatment device

Abstract

This utility model discloses a skin treatment device, comprising: a housing, with a first air duct and a second air duct isolated from each other within the housing; the first air duct has a first air inlet and a first air outlet, the first air inlet communicating with the interior of the housing and the first air outlet communicating with the exterior of the housing; a light source disposed in the second air duct, used to emit therapeutic light; a fan used to drive the airflow in the first and second air ducts; and a dust removal device disposed within the housing corresponding to the first air inlet, which, when powered on, has the ability to drive dust to move towards the first air inlet; under the action of the fan, the dust within the housing enters the first air duct from the first air inlet and exits the housing from the first air outlet. This utility model's technical solution helps to prevent the light source and surrounding components from blackening.

Description

Technical Field

[0001] This utility model relates to the technical field of skin treatment devices, and in particular to a skin treatment device. Background Technology

[0002] With societal development, people's demand for a good outward appearance is increasing, making skin treatment devices such as hair removal devices and skin rejuvenation devices more and more popular. One type of skin treatment device on the market primarily uses a built-in lamp to emit a light beam that acts on the user's skin, thereby achieving specific skin treatment effects such as skin rejuvenation, hair removal, and hair regrowth.

[0003] These types of skin treatment devices generate a lot of heat during operation. In high-power skin treatment devices, dust in the channel where the lamp is located is easily carbonized when exposed to high-power light. The carbonized dust adheres to the lamp and / or surrounding components, causing the lamp and / or surrounding components to turn black. Utility Model Content

[0004] The main purpose of this invention is to provide a skin treatment device designed to reduce dust entering the area around the light source, thereby preventing the light source and / or components around the light source from turning black.

[0005] To achieve the above objectives, the skin treatment device proposed in this utility model includes:

[0006] The housing has a first air duct and a second air duct that are isolated from each other; the first air duct has a first air inlet and a first air outlet, the first air inlet is connected to the inside of the housing, and the first air outlet is connected to the outside of the housing.

[0007] A light source, which is disposed in the second air duct, is used to emit therapeutic light;

[0008] A fan, which is connected to the first air duct and the second air duct, is used to drive the gas flow in the first air duct and the second air duct;

[0009] A dust removal device is disposed inside the housing corresponding to the first air inlet. After being energized, the dust removal device generates an electric field or generates an electric charge. The electric field or the electric charge is used to drive the dust to move. The dust removal device is used to guide the dust inside the housing to move toward the first air inlet.

[0010] Under the action of the fan, dust inside the housing enters the first air duct from the first air inlet and is discharged from the housing from the first air outlet.

[0011] Optionally, the housing also has a common air duct, the second air duct has a second air inlet, one end of the common air duct is connected to the first air inlet and the second air inlet, and the other end is connected to the fan;

[0012] The dust removal device is disposed in the common air duct and / or the first air duct to drive the dust in the common air duct and / or the second air duct to move toward the first air inlet.

[0013] Optionally, the skin treatment device includes an air duct housing, which is installed inside the housing;

[0014] The air duct shell has the common air duct, or the air duct shell and the shell are combined to form the common air duct.

[0015] Optionally, the fan includes a volute and an impeller disposed within the volute; the volute includes a casing body and a volute tongue connected to the casing body, the volute tongue having a common air duct;

[0016] The second air duct has a second air inlet, one end of the common air duct is connected to the first air inlet and the second air inlet, and the other end is connected to the shell body;

[0017] The dust removal device is disposed in the common air duct and / or the first air duct to drive the dust in the common air duct and / or the second air duct to move toward the first air inlet.

[0018] Optionally, the dust removal device includes an electrostatic generator for generating positive charges so that it can attract dust; the electrostatic generator is disposed on the wall of the common air duct near the first air duct, or the electrostatic generator is disposed inside the first air duct.

[0019] Optionally, the electrostatic generator is disposed adjacent to the first air inlet.

[0020] Optionally, the volute tongue has an exhaust port, and the position of the exhaust port closest to the impeller is the near air point;

[0021] The dust removal device includes at least two electrostatic generators, which are arranged at intervals along the length of the exhaust port and located on both sides of the near-air point.

[0022] Optionally, the dust removal device includes a positive electrode and a negative electrode, which are arranged opposite to each other. After the dust removal device is energized, a high-voltage electrostatic field is formed between the positive electrode and the negative electrode.

[0023] The positive electrode is disposed on the duct wall adjacent to the first duct of the common air duct, and the negative electrode is disposed on the side wall of the common air duct adjacent to the second duct.

[0024] Optionally, the volute tongue has an exhaust port, and the position of the exhaust port closest to the impeller is the near air point;

[0025] The dust removal device includes at least two sets of positive and negative electrode plates, which are arranged opposite to each other; the two sets of positive and negative electrode plates are arranged at intervals along the length of the exhaust port and are located on both sides of the near air point.

[0026] Optionally, the skin treatment device further includes a negative ion generator disposed within the common air duct and located upstream of the dust removal device; and / or,

[0027] The skin treatment device also includes a main control board, which is electrically connected to the dust removal device and is used to control the dust removal device to work intermittently.

[0028] Optionally, the skin treatment device further includes a reflector cup located within the second air duct, with at least a portion of the light source disposed within the reflector cup; and / or,

[0029] The number of light sources is at least two; and / or,

[0030] The first air duct and the second air duct are at least partially stacked; and / or,

[0031] The second air duct has a second air inlet, and the first air inlet and the second air inlet are arranged adjacent to each other; and / or

[0032] The skin treatment device further includes a semiconductor cooling element, a heat sink, and a treatment head for contact with biological sites. The cooling end of the semiconductor cooling element is thermally connected to the treatment head, and the hot end of the semiconductor cooling element is thermally connected to the heat sink, which is located in the first air duct; and / or,

[0033] The housing contains a first air guide plate and a second air guide plate stacked at intervals, forming a second air duct between the first air guide plate and the second air guide plate, and forming a first air duct between the first air guide plate and the housing. The first air outlet penetrates the housing; and / or...

[0034] The light source includes a lamp tube.

[0035] In this utility model, by setting a first air duct and a second air duct spaced apart inside the housing, and connecting the air outlet of the first air duct to the outside of the housing, the airflow passing through the first air duct will be discharged from the housing through the first air outlet and will not enter the second air duct. By setting the dust removal device corresponding to the first air inlet, the dust inside the housing enters the first air duct through the first air inlet under the action of an electric field or charge, thereby reducing or even preventing the dust in the housing from entering the second air duct. This reduces the amount of dust near and in contact with the light source, thereby avoiding the phenomenon of blackening of the light source and / or surrounding components due to high-temperature carbonization of dust. This is beneficial to improving the user experience and also prevents the carbonized dust from affecting the normal operation of the skin treatment device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of an embodiment of the skin treatment device of this utility model;

[0038] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the skin treatment device of this utility model;

[0039] Figure 3 This is a schematic diagram of the internal structure of another embodiment of the skin treatment device of this utility model;

[0040] Figure 4 This is a schematic diagram of the internal structure of another embodiment of the skin treatment device of this utility model;

[0041] Figure 5 This is a schematic diagram of the internal structure of another embodiment of the skin treatment device of this utility model;

[0042] Figure 6 This is a partial internal structure diagram of an embodiment of the skin treatment device of this utility model;

[0043] Figure 7 This is a partial internal structure schematic diagram of another embodiment of the skin treatment device of this utility model;

[0044] Figure 8 This is a schematic diagram of the structure of a fan in one embodiment of the skin treatment device of this utility model;

[0045] Figure 9This is a schematic diagram of the structure of an embodiment of the air duct shell of the skin treatment device of this utility model;

[0046] Figure 10 This is a schematic diagram of another embodiment of the air duct shell of the skin treatment device of this utility model.

[0047] Explanation of icon numbers:

[0048]

[0049]

[0050] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0053] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] This utility model mainly proposes a skin treatment device, primarily used for skin care treatment on the human body. It utilizes light emitted by a light source 500 for skin rejuvenation, hair removal, and hair regrowth, with a hair removal device as the primary example. To address the problem of blackening of the light source 500 and / or surrounding components, the skin treatment device guides dust to an air duct where the light source 500 is not located, significantly reducing the amount of dust in the air duct and thus reducing or even eliminating the carbonization of dust by the light source 500. In this application, the device guiding the dust movement is a dust-repelling device 300. After being energized, the dust-repelling device 300 generates an electric field or charge, which drives the dust to move.

[0055] To facilitate understanding of the technical solution of this application, the working principle of the important solutions of this application will be briefly introduced first. The skin treatment device has a first air duct 135 and a second air duct 160 arranged at intervals. The air outlet of the first air duct 135 is connected to the outside of the skin treatment device. When the fan 200 is working, the airflow enters the first air duct 135 and the second air duct 160. Under the action of the dust removal device 300, the dust in the airflow is discharged from the skin treatment device through the first air duct 135, which greatly reduces or even eliminates the dust entering the second air duct 160. This greatly reduces the amount of dust in the environment where the light source 500 is located, thereby reducing or even eliminating the phenomenon of dust carbonization, thus avoiding the phenomenon of blackening of the light source 500 and / or surrounding components.

[0056] The following will mainly describe the specific structure of the skin treatment device.

[0057] Reference Figures 1 to 7 In this embodiment of the invention, the skin treatment device includes:

[0058] The housing 100 has a first air duct 135 and a second air duct 160 that are isolated from each other. The first air duct 135 has a first air inlet 150 and a first air outlet 130. The first air inlet 150 is connected to the inside of the housing 100, and the first air outlet 130 is connected to the outside of the housing 100.

[0059] Light source 500 is located in the second air duct 160 and is used to emit therapeutic light.

[0060] Fan 200, fan 200 is used to drive the gas flow in the first air duct 135 and the second air duct 160;

[0061] A dust removal device 300 is disposed inside the housing 100 corresponding to the first air inlet 150. After being powered on, the dust removal device 300 forms an electric field or generates an electric charge, so that it has the ability to drive dust to move. The dust removal device 300 is used to guide the dust inside the housing 100 to move towards the first air inlet 150.

[0062] Under the action of the fan 200, the dust inside the housing 100 enters the first air duct 135 from the first air inlet 150 and is discharged from the housing 100 from the first air outlet 130.

[0063] Specifically, in this embodiment, the overall shape of the housing 100 can be varied, such as a flat, cuboid shape or a cylindrical shape, etc., without any particular limitation. Taking the housing 100 as an example, which includes a first housing portion 110 and a second housing portion 120, the first housing portion 110 and the second housing portion 120 can be fixedly connected or detachably connected. The structure forming the first air duct 135 and the second air duct 160 can be a structure inherent to the housing 100 itself, a structure assembled into the housing 100, or a combination of a structure inherent to the housing 100 and a structure assembled into the housing 100. For a specific example, a first air guide plate 710 and a second air guide plate 720 are stacked at intervals within the housing 100, forming a second air duct 160 between the first air guide plate 710 and the second air guide plate 720, and forming a first air duct 135 between the first air guide plate 710 and the housing 100. The positional relationship between the first air duct 135 and the second air duct 160 can be varied. For example, the first air duct 135 and the second air duct 160 can be arranged adjacent to each other. In some embodiments, the first air duct 135 and the second air duct 160 can also be arranged far apart. The gas flow direction in the first air duct 135 can be the same as the gas flow direction in the second air duct 160, and in some embodiments, they can be opposite. In this embodiment, the first air duct 135 and the second air duct 160 are adjacent and the gas flow directions are basically the same. In some embodiments, in order to improve space utilization, the first air duct 135 and the second air duct 160 are at least partially stacked. For example, they can be arranged side by side along the thickness direction (height direction) of the housing 100. The first air inlet 150 communicates with the interior of the housing 100, and the first air outlet 130 communicates with the exterior of the housing 100, so that after the airflow enters from the first air inlet 150 and passes through the first air duct 135, it will exit the housing 100 from the first air outlet 130 and will not re-enter the second air duct 160. Regarding the second air duct 160, it has a second air inlet 161 and a second air outlet. The second air outlet can be set independently of the first air outlet 130, or it can be set integrally with the first air outlet 130. That is, the second air outlet of the second air duct 160 and the first air outlet 130 are respectively connected to the outside at different points of the housing 100, so that the first air duct 135 and the second air duct 160 form two completely independent air ducts; the second air outlet can also be connected to the first air duct 135, so that the airflow in the second air duct 160 is gathered to the first air duct 135 through the second air outlet and discharged from the housing 100 through the first air outlet 130. Alternatively, the second air outlet and the first air outlet 130 are the same air outlet, as long as it is ensured that the airflow containing dust in the first air duct 135 will not flow into the second air duct 160.

[0064] The light source 500 is mainly used to provide light energy. The overall shape of the light source 500 can be various, such as elongated, circular, ring-shaped, U-shaped, etc., without special limitation. Taking an elongated lamp tube 510 as an example, the light source 500 can take many forms, such as an IPL (Intense Pulsed Light) lamp. The length direction of the lamp tube 510 is consistent with the width direction of the housing 100, allowing the pulsed light emitted by the lamp tube 510 to be emitted through the light outlet at the end of the skin treatment device. The length direction of the lamp tube 510 is substantially consistent with the width direction of the second air duct 160, allowing the lamp tube 510 and its surrounding components to fully contact the airflow in the second air duct 160 to improve heat dissipation efficiency. In some embodiments, to further improve the utilization rate of the light, the skin treatment device also includes a reflector cup 600, located within the second air duct 160, with at least a portion of the lamp tube 510 disposed within the reflector cup 600. The lamp tube 510 is disposed within the reflector cup 600 along its length. The lamp tube 510 can be entirely located within the reflector cup 600, or partially located outside the reflector cup 600, such as at its end or on one side. The reflector cup 600 can have various cross-sectional shapes; in this embodiment, a C-shaped or U-shaped cross-section is used as an example. The opening of the reflector cup 600 faces the light outlet, allowing some of the light emitted by the lamp tube 510 to exit through the light outlet after being focused and reflected by the reflector cup 600. Heat dissipation fins are provided on the side of the reflector cup 600 opposite to the lamp tube 510 to improve its heat dissipation efficiency. When the reflector cup 600 is provided, part of the airflow in the second air duct 160 is used to dissipate heat from the reflector cup 600; part of the airflow enters from one end of the reflector cup 600 and flows out from the other end, and the airflow makes full contact with the lamp tube 510 when passing through the reflector cup 600. The airflow passing through the reflector cup 600 and the lamp tube 510 flows out from the second air outlet (in some embodiments, the second air outlet is connected to the first air outlet 130, or the second air outlet and the first air outlet 130 are the same air outlet).

[0065] The number of lamps 510 can be one, two, or even more. When there are at least two lamps 510, the number of light-emitting components housed within the housing 100 increases. To maximize space utilization and minimize the increase in the volume of the housing 100, the distance between the lamps 510 and the distance between the lamps 510 and surrounding components (such as the reflector 600) will decrease. In this case, the high temperature of the lamps 510 makes it easier for surrounding dust to carbonize. Therefore, when there are at least two lamps 510, reducing or even preventing dust from entering the second air duct 160 becomes particularly important.

[0066] The fan 200 can take many forms, including axial flow fans 200 and vortex fans 200. In this embodiment, a vortex fan 200 is used as an example. The vortex fan 200 can be a fan with air intake on one side or a vortex fan with air intake on both sides. The fan 200 is set corresponding to the first air inlet 150 and the second air inlet 161, and the fan 200 is connected to the first air duct 135 and the second air duct 160. When the fan 200 is working, it can simultaneously drive the airflow in the first air duct 135 and the second air duct 160.

[0067] The dust removal device 300, when energized, can generate an electric field or produce an electric charge. The dust removal device 300 producing an electric charge (positive and / or negative) has electrostatic adsorption force, which can adsorb small, lightweight dust particles. The electric field can ionize the air, causing dust particles to attach electrons. Under the attraction of opposite charges, the dust particles will move towards the positive pole of the electric field. The dust removal device 300 is positioned near the first air inlet 150, causing dust in the air to flow towards the first air inlet 150, thereby significantly reducing the amount of dust flowing towards the second air inlet 161, and further reducing the amount of dust approaching and contacting the lamp tube 510. Under the action of the fan 200, the gas inside the housing 100 enters the first air inlet 150 and the second air inlet 161 respectively, while the dust in the housing 100 is guided by the dust removal device 300 to the first air inlet 150, and after passing through the first air duct 135, it exits the housing 100 through the first air outlet 130, reducing or even preventing dust from passing through the lamp tube 510. The dust in the housing 100 refers to the dust in the space area formed by the housing 100, including the dust in the fan 200.

[0068] In this embodiment, by providing a first air duct 135 and a second air duct 160 spaced apart within the housing 100, and connecting the outlet of the first air duct 135 to the outside of the housing 100, the airflow passing through the first air duct 135 will be discharged from the housing 100 through the first outlet 130 and will not enter the second air duct 160. By setting the dust removal device 300 corresponding to the first air inlet 150, the dust inside the housing 100 will enter the first air duct 135 through the first air inlet 150 under the influence of an electric field or charge, thereby reducing or even preventing the dust in the housing 100 from entering the second air duct 160. This reduces the amount of dust that approaches and contacts the lamp tube 510, thus preventing the lamp tube 510 and / or the surrounding components from turning black due to high-temperature carbonization of the dust. This is beneficial to improving the user experience and also prevents the carbonized dust from affecting the normal operation of the skin treatment device.

[0069] Reference Figures 5 to 10 To facilitate a more detailed understanding of the technical solution of this application, the skin treatment device of this application will be described in more detail below.

[0070] In some embodiments, to improve the comfort of using the skin treatment device, the skin treatment device further includes a semiconductor cooling element 920, a heat sink 730, and a treatment head 910 for contact with biological parts. The cooling end of the semiconductor cooling element 920 is thermally connected to the treatment head 910, and the hot end of the semiconductor cooling element 920 is thermally connected to the heat sink 730, which is located in the first air duct 135. The treatment head 910 refers to the part of the skin treatment device that comes into contact with human skin during operation. The overall shape of the semiconductor cooling element 920 can be varied, such as sheet-like, block-like, or strip-like, and is not specifically limited here; a block-like configuration is taken as an example. The cooling end can directly contact the treatment head 910 or indirectly through other components (such as a cooling pad), transferring cold energy from the cooling end to the treatment head 910. The hot end can directly contact the heat sink 730 or indirectly, transferring heat to the heat sink 730 and dissipating it through the heat sink 730. When the airflow passes through the first air duct 135, it passes through the radiator 730 and exchanges heat with it, simultaneously carrying away heat from the fins of the radiator 730. The shapes of the first air guide plate 710 and the second air guide plate 720 that enclose the first air duct 135 can vary. Taking a bent plate structure as an example, the first air guide plate 710 and the second air guide plate 720 are arranged in parallel to form a trumpet-shaped structure. The second air inlet 161 is located at the smaller end of the trumpet-shaped structure, while the lamp tube 510, reflector cup 600, and other structures are located at the larger end. This allows the airflow to quickly enter the second air duct 160, and the flow velocity within the second air duct 160 is less than the velocity of the airflow passing through the second air inlet 161. This allows the airflow to fully exchange heat with the lamp and reflector cup 600 within the second air duct 160, thereby improving the utilization rate of the airflow.

[0071] The dust removal device 300 can be installed in many locations, such as on the components described in the above embodiments, such as on the inner wall of the housing 100, on the fan 200, etc. Alternatively, other components can be installed inside the housing 100 first, and then the dust removal device 300 can be installed on those other components inside the housing 100. The following descriptions will illustrate installation on components already mentioned in the above embodiments of the skin treatment device, as well as installation on additional components.

[0072] In some embodiments, in order to improve the utilization rate of the fan 200 and make the airflow driven by the fan 200 enter the first air duct and the second air duct 160 as much as possible, the housing 100 also has a common air duct 810. The second air duct 160 has a second air inlet 161. One end of the common air duct 810 is connected to the first air inlet 150 and the second air inlet 161, and the other end is connected to the fan 200. The dust removal device 300 is disposed in the common air duct 810 and / or the first air duct 135 to drive the dust in the common air duct 810 and / or the second air duct 160 to move towards the first air inlet 150.

[0073] Specifically, in this embodiment, the common air duct 810 can be formed in various ways, such as being independently formed on the components in the above embodiment, for example, within the fan 200; it can also be formed independently as a new structural component, or it can be formed in conjunction with the components in the above embodiment, etc., without any special limitation. One end of the common air duct 810 is connected to the exhaust port 250 of the fan 200, and the other end is connected to the first air inlet 150 and the second air inlet 161. The airflow discharged from the fan 200 enters the common air duct 810, and then enters the first air duct 135 and the second air duct 160 through the first air inlet 150 and the second air inlet 161. In this way, by setting the common air duct 810, the airflow driven by the fan 200 can enter the first air duct 135 and the second air duct 160 as much as possible, so that the fan 200 can better drive the airflow within the first air duct 135 and the second air duct 160. Meanwhile, by placing the dust removal device 300 in the common air duct 810 and / or the first air duct 135, the electric field or charge generated by the dust removal device 300 can act on the dust and other particles in the air duct as much as possible, thereby significantly improving the efficiency of the dust removal device 300. This causes the dust in the common air duct and / or the second air duct 160 to move as far as possible towards the first air inlet 150 and be discharged from the skin treatment device through the first air duct 135, thereby significantly reducing the amount of dust in the second air duct 160.

[0074] In some embodiments, the skin treatment device includes an air duct housing 800, which is installed inside the housing 100; the air duct housing 800 has a common air duct 810, or the air duct housing 800 and the housing 100 cooperate to form a common air duct 810.

[0075] Specifically, in this embodiment, the overall shape of the duct shell 800 can be varied, such as cylindrical, square, or round, in which case the duct shell 800 can independently form a common duct 810. In other embodiments, the duct shell 800 can be a cover, with a notch, which, when fitted with the housing 100, forms a complete common duct 810. The connection between the duct shell 800 and the housing 100 can be achieved in various ways, such as by snap-fit ​​connection, screw or other fastener connection, insertion, or adhesive bonding, etc., without any particular limitation. Of course, at the end where the duct shell 800 connects to the fan 200, the duct shell 800 fits snugly against the volute tongue 222 of the fan 200 to prevent airflow leakage between the duct shell 800 and the volute tongue 222. In this embodiment, by setting the air duct shell 800 as a detachable structure, the size, installation position, and shape of the common air duct 810 can be selected according to actual needs, so that the air duct shell 800 can be applied to a variety of different models of skin treatment devices.

[0076] In some embodiments, the fan 200 includes a volute 220 and an impeller 230 disposed within the volute 220; the volute 220 includes a shell body 221 and a volute tongue 222 connected to the shell body 221, the volute tongue 222 having a common air duct 810; the second air duct 160 has a second air inlet 161, one end of the common air duct 810 communicating with the first air inlet 150 and the second air inlet 161, and the other end communicating with the shell body 221; a dust removal device 300 is disposed in the common air duct 810 and / or the first air duct 135 to drive dust in the common air duct 810 and / or the second air duct 160 to move toward the first air inlet 150.

[0077] Specifically, in this embodiment, the common air duct 810 is formed in the volute 220 of the fan 200. The overall shape of the shell body 221 is roughly disc-shaped. The shell body 221 includes two opposing flat sidewalls and a peripheral sidewall. The peripheral sidewall extends circumferentially along the two flat sidewalls and is located between the two flat sidewalls. The air intake 210 of the fan 200 is opened on the two flat sidewalls. There can be one or two air intakes 210, which is not specifically limited here. The volute tongue 222 is connected to the peripheral sidewall and protrudes from the peripheral sidewall in one direction. One side of the volute tongue 222 can be tangent to the bending direction of the peripheral sidewall, so that the airflow in the shell body 221 can flow more smoothly into the volute tongue 222. The end of the volute tongue 222 away from the shell body 221 forms an exhaust port 250. The exhaust port 250 is roughly rectangular and extends along the length direction of the first air inlet 150 and the second air inlet 161. The first air inlet 150 and the second air inlet 161 are stacked along the thickness direction of the exhaust outlet 250, so that the airflow from the exhaust outlet 250 can directly enter the first air duct 135 and the second air duct 160.

[0078] Based on the aforementioned air duct structure, by placing the dust removal device 300 in the common air duct 810 and / or the first air duct 135, the dust passing through the common air duct 810 is affected by the electric field or charge generated by the dust removal device 300. The dust will move towards the first air inlet 150, thereby significantly reducing the amount of dust contained in the airflow entering the second air duct 160. By placing the common air duct 810 in the volute tongue 222, the installation of the dust removal device 300 does not require additional components. Thus, without modifying the component layout of the existing skin treatment device, the dust removal device 300 can be installed into the air duct structure of the skin treatment device, which is beneficial to the promotion and application of the core technical solution of this application and greatly improves the adaptability of the technical solution of this application.

[0079] There are many types of dust removal devices 300, and examples are given below.

[0080] In some embodiments, the dust removal device 300 includes an electrostatic generator 310, which generates a positive charge to attract dust. The electrostatic generator 310 is disposed on the wall of the common air duct 810 near the first air duct 135, or it is disposed within the first air duct 135. Specifically, in this embodiment, the electrostatic generator 310 can be an electrostatic rod, electrostatic mesh, or other component that generates a large amount of positive charge after being energized. When a positive charge is generated on the electrostatic generator 310, it becomes positively charged, allowing it to attract dust from the surrounding air. Under the action of the electrostatic generator 310, dust in the air passing through the common air duct 810 is guided to the first air inlet 150, increasing the dust concentration in the first air duct 135 and decreasing the dust concentration in the second air duct 160. The electrostatic generator 310 can be installed in various positions within the air duct; however, for better dust attraction and guidance, it is positioned near the first air inlet 150. That is, regardless of whether the static electricity generator 310 is installed in the common air duct 810 or the first air duct 135, it is installed close to the first air inlet 150 so that the dust in the common air duct 810 can move better toward the first air inlet 150.

[0081] In some embodiments, to improve the guiding effect of the dust removal device 300 and the rationality of its structural layout, the number of dust removal devices 300 can be multiple. Two are used as an example below. The volute tongue 222 has an exhaust port 250, and the closest position of the exhaust port 250 to the impeller 230 is the near-wind point 251. The dust removal device 300 includes at least two electrostatic generators 310, which are arranged at intervals along the length of the exhaust port 250 and are located on both sides of the near-wind point 251. Specifically, in this embodiment, the near-wind point 251 refers to the position where the exhaust port 250 is closest to the impeller 230, and the electrostatic generators 310 are located on both sides of the near-wind point 251, i.e., not at the near-wind point 251. Thus, by avoiding the near-wind point 251, the electrostatic generator 310 can have a larger installation space (the impeller 230 is a circular impeller 230, and the distance between the exhaust port 250 on both sides of the near-wind point 251 and the impeller 230 is larger), which brings convenience to the installation of the electrostatic generator 310. At the same time, it also avoids the phenomenon that the operation of the electrostatic generator 310 is affected by the impeller 230 due to being too close, which is conducive to improving the working stability of the electrostatic generator 310. At the same time, it also makes full and reasonable use of the space of the volute tongue 222, avoiding modification of the size and structure of the volute tongue 222, which is conducive to the promotion of the high-efficiency electrostatic generator 310. The two electrostatic generators 310 are distributed on both sides of the near-wind point 251, so that the dust on both sides of the exhaust port 250 is subject to the electrostatic adsorption force of the electrostatic generator 310, which is conducive to improving the dust guiding effect of the electrostatic generator 310.

[0082] It is worth noting that when the electrostatic generator 310 is installed on the duct housing 800, it can be installed at a position on the duct housing 800 that is far from the exhaust port 250, such as the middle of the duct housing 800 or the end of the duct housing 800 that is far from the volute tongue 222. In this way, the electrostatic generator 310 can be distributed along the length of the exhaust port 250, so that all dust in the airflow passing through the duct housing 800 is guided by the electrostatic generator 310, which greatly reduces the amount of dust entering the second duct 160.

[0083] In some embodiments, the dust removal device 300 includes a positive electrode 320 and a negative electrode 330, which are arranged opposite to each other. After the dust removal device 300 is energized, a high-voltage electrostatic field is formed between the positive electrode 320 and the negative electrode 330. The positive electrode 320 is disposed on the duct wall of the common air duct 810 adjacent to the first air duct 135, and the negative electrode 330 is disposed on the duct side wall of the common air duct 810 adjacent to the second air duct 160.

[0084] Specifically, in this embodiment, the positive electrode 320 and the negative electrode 330 are arranged in a sheet-like manner; in some embodiments, they may also be arranged in a plate-like manner. There are many ways to install the positive electrode 320 and the negative electrode 330 on the sidewall of the air duct, such as by snap-fit ​​connection, screw or other fastener connection, clamping structure clamping, adhesive connection, magnetic adsorption connection, slot limiting, etc., and no special limitation is made here. After the dust removal device 300 is powered on, a high-voltage electrostatic field is formed between the positive electrode 320 and the negative electrode 330. The high-voltage electrostatic field can ionize the air between them, and the negative charges generated by ionization move towards the positive electrode 320. During the process of the negative charges moving towards the positive electrode 320, they carry the dust they have adsorbed with them towards the positive electrode 320. In this way, the dust between the positive electrode 320 and the negative electrode 330 moves towards the positive electrode 320. By placing the positive electrode 320 on the wall of the common air duct 810 adjacent to the first air duct 135, dust moves towards the first air duct 135, thereby causing a large amount of dust to be discharged from the skin treatment device through the first air duct 135, which in turn greatly reduces the amount of dust that enters the second air duct 160 and comes into contact with the lamp tube 510.

[0085] In some embodiments, to improve the guiding effect of the dust removal device 300 and the rationality of its structural layout, the number of dust removal devices 300 can be multiple. Two are used as an example below. The volute tongue 222 has an exhaust port 250, and the closest position of the exhaust port 250 to the impeller 230 is the near-wind point 251. The dust removal device 300 includes at least two sets of positive electrode plates 320 and negative electrode plates 330, which are arranged opposite to each other. The two sets of positive electrode plates 320 and negative electrode plates 330 are arranged at intervals along the length of the exhaust port 250 and are located on both sides of the near-wind point 251.

[0086] Specifically, in this embodiment, the near-wind point 251 refers to the position where the exhaust port 250 is closest to the impeller 230. The positive electrode 320 and negative electrode 330 are located on both sides of the near-wind point 251, that is, not at the near-wind point 251. Thus, by avoiding the near-wind point 251, the positive electrode 320 and negative electrode 330 can have more installation space (the impeller 230 is a circular impeller, and the distance between the exhaust port 250 on both sides of the near-wind point 251 and the impeller 230 is greater), which facilitates the installation of the positive electrode 320 and negative electrode 330. At the same time, it also avoids the phenomenon that the operation of the positive electrode 320 and negative electrode 330 is affected by the impeller 230 due to being too close, which is beneficial to improving the working stability of the positive electrode 320 and negative electrode 330. At the same time, the space of the volute tongue 222 is fully and rationally utilized, avoiding modifications to the size and structure of the volute tongue 222, which is conducive to the promotion of the dust removal device 300. Two pairs of positive electrode plates 320 and negative electrode plates 330 are distributed on both sides of the near-air point 251, so that the dust on both sides of the exhaust port 250 is subject to the electrostatic adsorption force of the positive electrode plates 320 and negative electrode plates 330, which helps to improve the dust guiding effect of the positive electrode plates 320 and negative electrode plates 330.

[0087] It is worth noting that when the positive electrode 320 and negative electrode 330 are installed on the air duct housing 800, they can be installed at a position on the air duct housing 800 that is far from the exhaust port 250, such as the middle of the air duct housing 800 or the end of the air duct housing 800 that is far from the volute tongue 222. In this way, the positive electrode 320 and negative electrode 330 can be distributed along the length of the exhaust port 250, so that all dust in the airflow passing through the air duct housing 800 is guided by the positive electrode 320 and negative electrode 330, which greatly reduces the amount of dust entering the second air duct 160.

[0088] In some embodiments, to improve the dust removal effect of the dust removal device 300, the skin treatment device further includes a negative ion generator, which is disposed within the common air duct 810 and located upstream of the dust removal device 300. Specifically, in this embodiment, the negative ion generator being located upstream of the dust removal device 300 means that the airflow passes through the negative ion generator first and then through the dust removal device 300. Thus, when passing through the negative ion generator, the negative ions generated by the generator adsorb onto the dust particles in the airflow, making the dust particles negatively charged. When the negatively charged dust particles pass through the dust removal device 300, the dust removal device 300 can better drive the dust particles towards the first air inlet 150. Therefore, by placing the negative ion generator upstream of the dust removal device 300, the dust particles in the air have a longer time to mix and contact with the negative ions, allowing the dust particles to better adhere to the negative ions, significantly improving the dust removal device 300's effect of guiding the dust particles.

[0089] In some embodiments, to prevent dust from adhering to the dust removal device 300, the skin treatment device further includes a main control board electrically connected to the dust removal device 300. The main control board is used to control the dust removal device 300 to operate intermittently. Specifically, in this embodiment, intermittent operation refers to working for a period of time, then stopping, and then continuing to work after a period of stopping, such as pulsed operation. This allows the dust removal device 300 to guide dust to the first air inlet 150 when it is powered on; and not to guide dust when it is not working, preventing dust from adhering to the dust removal device 300, or allowing dust adhering to the dust removal device 300 to be blown into the first air duct 135 by the airflow. Thus, the dust removal device 300 can both guide dust movement and prevent long-term dust adsorption, avoiding the need for cleaning and not affecting the internal environment of the skin treatment device, which is beneficial to the user. There are many ways for the main control board to enable the dust removal device 300 to work intermittently. For example, the main control board can be equipped with an interval control circuit, a pulse output circuit, etc. Any circuit that can control the dust removal device 300 to work intermittently is acceptable, and no special limitation is made here.

[0090] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A skin treatment device, characterized in that, include: A housing having a first air duct and a second air duct that are isolated from each other; The first air duct has a first air inlet and a first air outlet. The first air inlet is connected to the inside of the housing, and the first air outlet is connected to the outside of the housing. A light source, which is disposed in the second air duct, is used to emit therapeutic light; A fan, which is connected to the first air duct and the second air duct, is used to drive the gas flow in the first air duct and the second air duct; A dust removal device is disposed inside the housing corresponding to the first air inlet. After being energized, the dust removal device generates an electric field or generates an electric charge. The electric field or the electric charge is used to drive the dust to move. The dust removal device is used to guide the dust inside the housing to move toward the first air inlet. When the fan and the dust removal device are working, the dust inside the housing enters the first air duct from the first air inlet and is discharged from the housing from the first air outlet.

2. The skin treatment device as described in claim 1, characterized in that, The housing also has a common air duct, the second air duct has a second air inlet, one end of the common air duct is connected to the first air inlet and the second air inlet, and the other end is connected to the fan; The dust removal device is disposed in the common air duct and / or the first air duct to drive the dust in the common air duct and / or the second air duct to move toward the first air inlet.

3. The skin treatment device as described in claim 2, characterized in that, The skin treatment device includes an air duct housing, which is installed inside the housing; The air duct shell has the common air duct, or the air duct shell and the shell are combined to form the common air duct.

4. The skin treatment device as described in claim 1, characterized in that, The fan includes a volute and an impeller disposed within the volute; the volute includes a shell body and a volute tongue connected to the shell body, the volute tongue having a common air duct; The second air duct has a second air inlet. One end of the common air duct is connected to the first air inlet and the second air inlet, and the other end is connected to the shell body. The dust removal device is disposed in the common air duct and / or the first air duct to drive the dust in the common air duct and / or the second air duct to move toward the first air inlet.

5. The skin treatment device according to any one of claims 2 to 4, characterized in that, The dust removal device includes an electrostatic generator, which generates a positive charge to attract dust. The electrostatic generator is disposed on the wall of the common air duct near the first air duct, or the electrostatic generator is disposed inside the first air duct.

6. The skin treatment device as described in claim 5, characterized in that, The electrostatic generator is positioned adjacent to the first air inlet.

7. The skin treatment device as claimed in claim 4, characterized in that, The volute tongue has an exhaust port, and the position of the exhaust port closest to the impeller is the near-wind point; The dust removal device includes at least two electrostatic generators, which are arranged at intervals along the length of the exhaust port and located on both sides of the near-air point.

8. The skin treatment device according to any one of claims 2 to 4, characterized in that, The dust removal device includes a positive electrode and a negative electrode, which are arranged opposite to each other. When the dust removal device is powered on, a high-voltage electrostatic field is formed between the positive electrode and the negative electrode. The positive electrode is disposed on the duct wall adjacent to the first duct of the common air duct, and the negative electrode is disposed on the side wall of the common air duct adjacent to the second duct.

9. The skin treatment device as claimed in claim 4, characterized in that, The volute tongue has an exhaust port, and the position of the exhaust port closest to the impeller is the near-wind point; The dust removal device includes at least two sets of positive and negative electrode plates, which are arranged opposite to each other; the two sets of positive and negative electrode plates are arranged at intervals along the length of the exhaust port and are located on both sides of the near air point.

10. The skin treatment device according to any one of claims 2 to 4, characterized in that, The skin treatment device further includes a negative ion generator, which is disposed within the common air duct and located upstream of the dust removal device; and / or, The skin treatment device also includes a main control board, which is electrically connected to the dust removal device and is used to control the dust removal device to work intermittently.

11. The skin treatment device as claimed in claim 1, characterized in that, The skin treatment device further includes a reflector cup located within the second air duct, and at least a portion of the light source is disposed within the reflector cup; and / or, The number of light sources is at least two; and / or, The first air duct and the second air duct are at least partially stacked; and / or, The second air duct has a second air inlet, and the first air inlet and the second air inlet are arranged adjacent to each other; and / or The skin treatment device further includes a semiconductor cooling element, a heat sink, and a treatment head for contacting biological parts. The cooling end of the semiconductor cooling element is thermally connected to the treatment head, and the hot end of the semiconductor cooling element is thermally connected to the heat sink. The heat sink is located in the first air duct. And / or, The housing contains a first air guide plate and a second air guide plate stacked at intervals, forming a second air duct between the first air guide plate and the second air guide plate, and forming a first air duct between the first air guide plate and the housing. The first air outlet penetrates the housing; and / or... The light source includes a lamp tube.

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