Patent Description:
The principle of optical beauty is to irradiate the skin with different wavelengths of light to achieve hair removal, whitening, acne removal and other effects. In practical applications, filters are usually used to select different wavelengths of light. In this context, reference is made to documents <CIT>, (<CIT>, <CIT>and <CIT>.

Most of the existing household hair removal devices have a single filter built into the device, which only provides the function of hair removal, or are equipped with multiple functional lamp heads (such as hair-removal lamp heads, whitening lamp heads, acne-removal lamp heads, etc.) for disassembly and switching. However, these two methods are either difficult to switch functions, or troublesome to disassemble and assemble when switching, and the cost of multiple lamp heads is high and difficult to carry. Neither of these two methods can meet users' demands for convenient function switching.

In order to solve the problem that the existing household hair removal devices cannot conveniently switch functions, the present disclosure provides a hair-removal apparatus.

In order to solve the technical problems, the present invention defined in the appended claims provides a hair-removal apparatus, which includes a main body and a light-filtering member detachably connected to the main body; at least one sensing element is disposed on the light-filtering member; when the light-filtering member is connected to the main body, the main body recognizes the sensing element to determine the type of the light-filtering member and whether the light-filtering member is inserted in the proper position where it is configured to be inserted.

Preferably, the main body includes a light-emitting mechanism that includes a body, a light-transmitting crystal and a lamp mounted in the body; a light-exit opening is defined on the body; one end of the light-transmitting crystal is exposed out of the light-exit opening for contacting user's skin, and the other end thereof is close to the lamp; light emitted by the lamp passes through the light-transmitting crystal and emits from the light-exit opening.

Preferably, the light-filtering member is inserted into the body from the narrow side of the main body and is located between the light-transmitting crystal and the lamp.

Preferably, the main body is further provided with at least one Hall element, and the sensing element is a magnetic member; a mounting side-hole is further defined on the body; the light-filtering member is detachably disposed in the main body through the mounting side-hole, and the Hall element is aligned with the sensing element.

Preferably, the light-filtering member includes a light-filtering portion and a handle portion, and the sensing element is disposed on the handle portion; when the light-filtering member is inserted into the body, the position of the light-filtering portion corresponds to that of the light-exit opening; one end of the handle portion away from the light-filtering portion is exposed out of the main body.

Preferably, a flange is formed at one end of the handle portion exposed out of the main body, and the protruding direction of the flange is perpendicular to the insertion direction of the light-filtering member; a fixing member is further provided on the handle portion, and a groove is defined in the mounting side-hole corresponding to the fixing member; after the light-filtering member is inserted into the body, the fixing member is clamped into the groove.

Preferably, the light-filtering portion includes a light-filtering sheet and a frame; the frame is connected to the handle portion, and the light-filtering sheet is disposed in the frame; an interspace is defined between the light-filtering sheet and the handle portion; at least one protrusion is provided at one end of the handle portion close to the interspace, and the protrusion abuts against the light-filtering sheet.

Preferably, the light-emitting mechanism further includes a front glass sheet, which is disposed in the body and separates the light-transmitting crystal from the lamp; after the light-filtering member is inserted into the body, the light-filtering portion is located on one side of the front glass sheet close to the lamp, and the light-filtering portion is parallel to the front glass sheet.

Preferably, a hollow separating member is disposed in the main body, which seals the region between the light-transmitting crystal and the front glass sheet.

Preferably, the light-emitting mechanism further includes a hollow partition plate disposed on one side of the front glass sheet close to the lamp; one end of the partition plate corresponding to the mounting side-hole defines an opening, and the other end thereof away from the opening defines a step; during insertion of the light-filtering member into the body, the light-filtering portion is inserted through the opening and eventually abuts against the step.

Preferably, the light-emitting mechanism further includes a rear glass sheet disposed on one side of the partition plate close to the lamp; the front glass sheet, the partition plate and the rear glass sheet together form a space for accommodating the light-filtering portion.

Preferably, the main body is provided with two Hall elements; the handle portion defines a first position and a second position corresponding to the Hall elements; the sensing element is disposed at the first position, or the second position, or both the first position and the second position.

Preferably, the handle portion is provided with an anti-reverse insertion structure, and the shape of the mounting side-hole matches that of the handle portion.

Preferably, the main body further includes a power switch and a light-emitting button; after the light-filtering member is inserted into the body, the power switch can be turned on, and then the light-emitting button can control the lamp to work normally; if the light-filtering member is not inserted into the body, the lamp will not work; a resilient member is further disposed in the body, which is in contact with the light-filtering member for ejecting the light-filtering member from the body.

Preferably, the main body includes an external circuit board, a key PCBA and a main-control PCBA, and the key PCBA and the light-emitting mechanism are respectively arranged on two sides of the main-control PCBA; a gap is defined between the main-control PCBA and the body; the external circuit board includes a connecting section and a conducting section that are electrically connected; at least part of the conducting section is positioned in the gap, and the connecting section is electrically connected to the key PCBA.

Preferably, the external circuit board is entirely or partially made of a flexible circuit board material; the main body further includes a thermosensitive assembly, which penetrates through the light-emitting mechanism and closely disposed on the light-transmitting crystal; the conducting section is closely disposed to the body so that the conducting section is connected to the thermosensitive assembly.

Preferably, the connecting section is bent toward the main-control PCBA and defines a first notch, and part of electronic components on the main-control PCBA are accommodated in the first notch; the conducting section is bent toward the light-transmitting crystal and defines a second notch, and the light-transmitting crystal wrapped by the body is clamped in the second notch; the body defines a refrigerating-sheet assembling hole and a temperature-measuring hole; the main body further comprises a refrigerating assembly in contact with the light-transmitting crystal through the refrigerating-sheet assembling hole to refrigerate the light-transmitting crystal; one end of the thermosensitive assembly penetrates into the temperature-measuring hole and is in contact with the light-transmitting crystal.

Preferably, a second thermistor is provided on the key PCBA, and the main body further includes a heat-dissipating mechanism; the second thermistor penetrates into the heat-dissipating mechanism to detect the temperature inside the heat-dissipating mechanism.

Preferably, the external circuit board further includes a fixing section electrically connected to the conducting section; the Hall element is disposed on and electrically connected to the fixing section; the fixing section is parallel to the insertion direction of the light-filtering member.

Preferably, the light-emitting mechanism further includes a pressing plate covered on the conducting section, and a portion of the pressing plate covering the conducting section is positioned in the gap.

Compared with the prior art, the hair-removal apparatus of the present disclosure has the following beneficial effects.

The hair-removal apparatus of the present disclosure includes a main body and a light-filtering member detachably connected to the main body; at least one sensing element is disposed on the light-filtering member; when the light-filtering member is connected to the main body, the main body recognizes the sensing element to determine the type of the light-filtering member and whether the light-filtering member is inserted in place. The light-filtering member is detachably connected to the main body, so that when requiring different functions, users can simply insert and pull to replace the light-filtering members of different wavelengths, and the problem that the existing household hair-removal devices cannot conveniently switch functions can be solved. In addition, the method of disposing the sensing element on the light-filtering member makes the sensing element in different combinations for the design of multiple functions easier to realize, which can mass-produce the light-filtering member and reduce the cost of production.

The main body of the present disclosure includes a light-emitting mechanism that includes a body, a light-transmitting crystal and a lamp mounted in the body; a light-exit opening is defined on the body; one end of the light-transmitting crystal is exposed out of the light-exit opening for contacting user's skin, and the other end thereof is close to the lamp; light emitted by the lamp passes through the light-transmitting crystal and emits from the light-exit opening; the light-filtering member is inserted into the body from the narrow side of the main body and is located between the light-transmitting crystal and the lamp. By disposing the light-transmitting crystal that can be in contact with the skin for icing, the burning sensation on the skin caused by the light emitted by the lamp can be reduced.

The light-transmitting crystal of the present disclosure is exposed out of the light-exit opening for contacting the skin; the light-filtering member cannot be configured to be inserted from the light-exit opening (that is, from the head of the hair-removal apparatus). The light-filtering member is inserted from the narrow side of the main body, which takes into account the direct contact of the light-transmitting crystal with the skin and the replacement of the light-filtering member, so that the inserting holes defined on the surface of the main body can be made smaller in size and external objects can be prevented from entering into the hair-removal apparatus accidentally; after the light-filtering member is inserted, the exposed part of the light-filtering member is smaller, which can make the overall design of the present disclosure aesthetic and improve user experience.

The main body of the present disclosure is further provided with at least one Hall element; the sensing element is a magnetic member; the main body further defines a mounting side-hole; the light-filtering member is detachably disposed in the main body through the mounting side-hole, and the Hall element is aligned with the sensing element. By defining the mounting side-holes, the space between the lamp and the light-transmitting crystal can be communicated with the outer side of the main body, and the light-filtering member can be easily inserted into and out of the space by simply inserting and pulling, so that the light-filtering members of different wavelengths can be easily replaced, which solves the problem that the existing household hair-removal devices cannot conveniently switch functions. In addition, the hair-removal apparatus cannot be started normally when the light-filtering member is not inserted or not inserted in place. That is, the on-off of the light-emitting mechanism can be controlled by the Hall element that accurately senses whether the light-filtering member is inserted in place, which prevents unfiltered strong light from hurting users. In addition, the Hall element can also obtain the number and corresponding position information of the sensing element to accurately identify the type of the light-filtering member inserted into the main body, so as to control the light-emitting mechanism to adapt to different functions to output light with corresponding energy value, and achieve the optimal effect of the corresponding function.

The light-filtering member of the present disclosure includes a light-filtering portion and a handle portion, and the sensing element is disposed on the handle portion; when the light-filtering member is inserted into the body, the position of the light-filtering portion corresponds to that of the light-exit opening, and one end of the handle portion away from the light-filtering portion is exposed from the main body. By providing the handle portion, the user only needs to touch the handle portion when replacing the light-filtering member, which prevents user's hands from being in contact with and contaminating the light-filtering portion to cause the filtering effect to deteriorate.

In the present disclosure, a flange is formed at one end of the handle portion exposed from the main body, and the protruding direction of the flange is perpendicular to the insertion direction of the light-filtering member. By arranging the flange, when the light-filtering member is pulled out, user's fingers can have a force point, which prevents the hand from slipping and enhances the practicality thereof.

In the present disclosure, a fixing member is further provided on the handle portion, and a groove is defined in the mounting side-hole corresponding to the fixing member; after the light-filtering member is inserted into the body, the fixing element is clamped into the groove. By arranging the fixing member and the groove corresponding to the fixing member, the light-filtering member can be limited and fixed after the light-filtering member is inserted into the body, which prevents the light-filtering member from shaking or even sliding down by itself to affect user experience.

In the present disclosure, the light-filtering portion includes a light-filtering sheet and a frame; the frame is connected to the handle portion, and the light-filtering sheet is disposed in the frame. By disposing the frame, it is convenient to install and fix the light-filtering sheet; in addition, when the light-filtering member is inserted and removed, the wear of the light-filtering sheet can be effectively avoided, and the lifetime thereof can be increased; the frame is made of metal of heat-resistant and decomposition-resistant properties, which can ensure that the frame can better protect the light-filtering sheet.

In the present disclosure, an interspace is defined between the light-filtering sheet and the handle portion; at least one protrusion is provided at one end of the handle portion close to the interspace, and the protrusion abuts against the light-filtering sheet. Thus, the interspace can be used to dissipate heat, and the protrusion can be used to support and fix the light-filtering sheet, so that the use effect is better and the practicability is further enhanced.

In the present disclosure, the handle portion and at least a portion of the frame are wrapped with an adhesive layer to avoid high-voltage leakage and hurt people, ensure safe use, and further play a heat-insulation effect, so that the user will not feel burning when touching the handle portion, which improves user experience.

In the present disclosure, the light-emitting mechanism further includes a front glass sheet, which is disposed in the body and separates the light-transmitting crystal and the lamp; after the light-filtering member is inserted into the main body, the light-filtering portion is located on the side of the front glass sheet close to the lamp, and the light-filtering portion is parallel to the front glass sheet. By arranging the front glass sheet, dust that affects the normal light-emitting of the lamp can be prevented from entering from the light-exit opening. In addition, the front glass sheet can be a filter specially designed to filter pure harmful light such as ultraviolet rays to add safety protection for user's skin.

In the present disclosure, a hollow separating member is disposed in the main body, and the separating member seals the region between the light-transmitting crystal and the front glass sheet. It can be understood that the light-transmitting crystal and the front glass sheet are fully abut on two sides of the separating member respectively, so that a vacuum is always maintained between the light-transmitting crystal and the front glass sheet, that is, the separating member seals the region between the light-transmitting crystal and the front glass sheet to prevent gas liquefaction and fogging on the sides facing oppositely of the front glass sheet and/or the transparent crystal, which further improves the light-emitting quality. In addition, hot air is easily liquefied into water droplets when cold, and the water droplets may cause safety problems when being in contact with the circuit board of the hair-removal apparatus. By disposing the separating member to seal the region between the light-transmitting crystal and the front glass sheet, the use safety of the hair-removal apparatus is improved.

In the present disclosure, the light-emitting mechanism further includes a hollow partition plate disposed on the side of the front glass sheet close to the lamp; one end of the partition plate corresponding to the mounting side-hole defines an opening, and the other end of the partition plate away from the opening defines a step; during insertion of the light-filtering member into the body, the light-filtering portion enters through the opening and finally abuts the step. By disposing the partition plate, the light-filtering portion can be accurately introduced and the position thereof can be limited, and the stability of the light-filtering member after installation can be enhanced.

In the present disclosure, the light-emitting mechanism further includes a rear glass sheet disposed on the side of the partition plate close to the lamp; the front glass sheet, the partition plate and the rear glass sheet together form a space for accommodating the light-filtering portion. By disposing the rear glass sheet, dust can be prevented from entering the mounting side-hole and affecting the normal light-emitting of the lamp.

In the present disclosure, the light-emitting mechanism further includes a reflective cup, and the lamp is arranged in the reflective cup; at least one notch is further defined on the partition plate, and the reflective cup abuts against the partition plate and defines a ventilation hole with the notch. By defining the ventilation hole, the interior of the light-emitting mechanism can further absorb external air and dissipate heat, which further ensures that the hair-removal apparatus runs at a favorable ambiance temperature.

In the present disclosure, the handle portion has an anti-reverse insertion structure; at least one set of opposite sides of the handle portion is asymmetrically arranged, and the shape of the mounting side hole matches that of the handle portion. Thus, the light-filtering member can be prevented from being inserted backward, which affects the recognition of the sensing element by the Hall element thus affecting the normal start of the hair-removal apparatus and user experience.

In the present disclosure, the main body further includes a power switch and a light-emitting button; after the light-filtering member is inserted into the main body, the hair-removal apparatus can be turned on by long-press the power switch, then the lamp can be controlled to work normally by pressing the light-emitting button; if the light-filtering member is not inserted into the main body, the power switch will not be turned on, and the lamp will not work. Thus, it can be ensured that the lamp can be turned on normally only when the light-filtering member is inserted into the main body, that is, the lamp tube can be turned on to emit light, which can prevent unfiltered strong light from hurting user's skin and ensure safety.

In the present disclosure, a resilient member is further disposed in the body, and the resilient member is in contact with the light-filtering member for ejecting the light-filtering member from the body. By arranging the resilient member, the light-filtering member can be more conveniently taken out and replaced by means of pressing and rebounding, which improves user experience.

In the present disclosure, the main body further includes an external circuit board, a key PCBA, and a main-control PCBA; the key PCBA and the light-emitting mechanism are respectively arranged on two sides of the main-control PCBA; a gap is defined between the main-control PCBA and the body of the light-emitting mechanism; the external circuit board includes a connecting section and a conducting section that are electrically connected, at least part of the conducting section is positioned in the gap, and the connecting section is electrically connected to the key PCBA. It can be understood that part of electronic components is required to be configured far away from the key PCBA and the main-control PCBA to achieve functions thereof, however, if connected by cables, the connected circuit will have no stable load, resulting in poor safety and stability of the circuit. The external circuit board has an integrated circuit, which can be stably loaded by the external circuit board, and the problems of poor safety and stability of the internal circuit of the existing household hair-removal devices are solved. In addition, the external circuit board can be transformed into a corresponding shape according to the space where it is disposed, which can fully utilize the space and adapt to the development of miniaturization.

In the present disclosure, the main body further includes a thermosensitive assembly, and the thermosensitive assembly penetrates through the light-emitting mechanism and is closely attached to the light-transmitting crystal; the conducting section is in close contact with the body to connect the thermosensitive assembly; the temperature of the light-transmitting crystal is sensed through the thermosensitive assembly, and the temperature thereof is converted into an electrical signal and transmitted to the control unit, so that the light-transmitting crystal can be controlled at a suitable temperature, that is, the temperature of the light-transmitting crystal in contact with the skin is a suitable temperature to improve user experience.

In the present disclosure, the connecting section is bent toward the main-control PCBA and defines a first notch, and part of electronic elements on the main-control PCBA are accommodated in the first notch; the conducting section is bent toward the light-transmitting crystal and defines a second notch, and the body wraps the light-transmitting crystal and then clamped into the second notch. By arranging the first notch and the second notch, an avoidance space can be formed, which facilitates a reasonable and compact arrangement of electronic elements and provides space for other devices, makes full use of the space, and makes the structure of the present disclosure more reasonable.

In the present disclosure, the key PCBA is provided with a second thermistor; the main body further includes a heat-dissipating mechanism, and the second thermistor penetrates into the heat-dissipating mechanism to detect the temperature inside the heat-dissipating mechanism. By disposing the second thermistor, when sensing that the temperature is too high and exceeds the preset threshold, the automatic shutdown control program will be executed to ensure that the hair-removal apparatus can run within a safe temperature.

In the present disclosure, the external circuit board further includes a fixing section electrically connected to the conducting section; the Hall element is disposed on the fixing section, and the Hall element is electrically connected to the fixing section; the fixing section is parallel to the insertion direction of the light-filtering member. By disposing the Hall element at the fixing section, the load function of the external circuit board can be fully utilized, and the safety and stability of the circuit that the Hall element is connected to can be ensured. In addition, the fixing section is parallel to the insertion direction of the light-filtering member, so that the Hall element and the sensing element can be aligned more reasonably and the identification is more accurate.

In the present disclosure, the external circuit board may entirely use a flexible circuit board material; or part of the external circuit board may use a flexible circuit board material, and the remaining part may use a hard board material. When entirely using a flexible circuit board material, the external circuit board can adaptively change its shape according to the size of the space where it is located and the shape of the component it is close to, so as to make reasonable use of the space; when partially using a flexible circuit board material, the turning portions of the external circuit board can be configured as a flexible circuit board material, which can also make reasonable use of the space and enhance the practicability thereof.

In the present disclosure, the body further defines a refrigerating-sheet assembling hole and a temperature-measuring hole; the main body further includes a refrigerating assembly, which is in contact with the light-transmitting crystal through the refrigerating-sheet assembling hole to refrigerate the light-transmitting crystal; one end of the thermosensitive assembly penetrates through the temperature-measuring hole to contact the light-transmitting crystal. By disposing the refrigerating-sheet assembling hole and the temperature-measuring hole, it can be ensured that the light-transmitting crystal is firmly in the body and in contact with the refrigerating assembly and thermosensitive assembly, so that the light-emitting mechanism has strong integrity and compact arrangement.

In the present disclosure, the light-emitting mechanism further includes a pressing plate covered on the conducting section; the portion of the pressing plate covering the conducting section is positioned in the gap, and the shape of the pressing plate is matched with that of part of the surface of the body, so that the conducting section is close to the surface of the body to improve compactness and enhance the stability of the external circuit board. The pressing plate is partially positioned in the gap, which can further save space. In addition, the pressing plate is made of moisture-proof foamed cotton, which can protect the conducting section from moisture.

In order to illustrate the technical solutions in the embodiments of the present disclosure more clearly, the accompanying drawings will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present disclosure; for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are provided for illustration only, and not to limit the present disclosure.

It should be noted that when a member is referred to as being "fixed to" another member, it can be directly on the other member or intervening members may also be present. When a member is referred to as being "connected" to another member, it can be directly connected to the other member or intervening members may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Referring to <FIG>, a first embodiment of the present disclosure provides a hair-removal apparatus <NUM>, which includes a main body <NUM> and a light-filtering member <NUM> detachably connected to the main body <NUM>. The main body <NUM> includes a housing <NUM>, a light-emitting mechanism <NUM>, a heat-dissipating mechanism <NUM>, a capacitor <NUM>, a power switch <NUM> and a light-emitting button <NUM>. The light-emitting mechanism <NUM>, the heat-dissipating mechanism <NUM> and the capacitor <NUM> are accommodated in an accommodating space formed by the housing <NUM>. The power switch <NUM> and the light-emitting button <NUM> are exposed from the housing <NUM> and are electrically connected to the light-emitting mechanism <NUM>, and an external power supply supplies power to the light-emitting mechanism <NUM> through the capacitor <NUM>.

Further, at least one sensing element <NUM> is disposed on the light-filtering element <NUM>. After the light-filtering element <NUM> is connected to the main body <NUM>, the sensing element <NUM> is recognized by the main body <NUM> to confirm that the light-filtering element <NUM> has been inserted, and then the power switch <NUM> can be turned on to start the hair-removal apparatus <NUM> normally. The light-emitting mechanism <NUM>, which emits light that acts on the skin, can be controlled by the light-emitting button <NUM>, and the heat-dissipating mechanism <NUM> is used to absorb external air and dissipate heat from the light-emitting mechanism <NUM>.

It can be understood that the main body <NUM> is provided with a sensing device matching the sensing element <NUM>. For example, when the sensing device in the main body <NUM> is a Hall sensing device, the sensing element <NUM> is a magnetic member; when the sensing device in the main body <NUM> is a photoelectric device, the sensing element <NUM> can be a reflective member, a light-absorbing member or a light-shielding member; when the sensing device in the main body <NUM> is a micro-motion sensing device, the sensing element <NUM> can be a triggering member for controlling the on-off of the micro-motion sensing device.

Further, the main body <NUM> includes a key PCBA <NUM> and a main-control PCBA <NUM> that are electrically connected. The light-emitting mechanism <NUM>, the heat-dissipating mechanism <NUM> and the capacitor <NUM> are sequentially connected to one side of the main-control PCBA <NUM> to form a stable entirety, and the key PCBA <NUM> is disposed on the other side of the main-control PCBA <NUM>, which makes the interior of the main body <NUM> form a modular arrangement of a stable and compact structure. It can be understood that the power switch <NUM> and the light-emitting button <NUM> are electrically connected to the light-emitting mechanism <NUM> through the key PCBA <NUM>.

It can be understood that a control circuit and a control unit are arranged on the key PCBA <NUM>, and the power switch <NUM> and the key PCBA <NUM> are used to centrally control the on-off of each electrical component of the present disclosure.

Further, the main body <NUM> is provided with a display screen <NUM>, which can display information such as functions, gears, temperature, power, duration and indicator lights thereof, etc., and can display one or more of them, which is not limited here.

Referring to <FIG>, further, the light-emitting mechanism <NUM> includes a body <NUM>, a light-transmitting crystal <NUM> and a lamp <NUM> installed in the body <NUM>. A light-exit opening <NUM> is defined on the body <NUM> and exposed from one end of the light-transmitting crystal <NUM> to contact the skin, and the other end thereof is close to the lamp <NUM>. Light emitted by the lamp <NUM> passes through the light-transmitting crystal <NUM> and emits from the light-exit opening <NUM>. The light-filtering member <NUM> enters the body <NUM> from the narrow side of the main body <NUM> and is located between the light-transmitting crystal <NUM> and the lamp <NUM>.

It can be understood that the light-transmitting crystal <NUM> can be in contact with the skin to ice the skin, which can reduce the burning sensation on the skin caused by the light emitted by the lamp <NUM>. The light-transmitting crystal <NUM> includes, but is not limited to, any one of sapphire crystal, quartz glass, and K9 glass.

It can be understood that the main body <NUM> and the light-exit opening <NUM> have four adjacent sides, two sides thereof facing oppositely being narrow sides and two sides thereof facing oppositely being wide sides. The light-filtering member <NUM> is inserted from the narrow side of the main body <NUM>, so that the inserting holes defined on the surface of the main body <NUM> can be made smaller in size and external objects can be prevented from entering the hair-removal apparatus <NUM> accidentally. After the light-filtering member <NUM> is inserted, the exposed part of the light-filtering member <NUM> is smaller, which can make the overall design of the present disclosure aesthetic and improve user experience.

A mounting side-hole <NUM> is further defined on the body <NUM>, and an inserting hole <NUM> is correspondingly defined on the housing <NUM>. The light-filtering member <NUM> located between the light-exit opening <NUM> and the lamp <NUM> is detachably disposed in the body <NUM> through the inserting hole <NUM> and the mounting side-hole <NUM> in sequence. By arranging the inserting hole <NUM> and the mounting side-hole <NUM>, the space between the lamp <NUM> and the light-exit opening <NUM> can be communicated with the outer side of the main body <NUM>, and the light-filtering member <NUM> can easily enter and exit the space by simply inserting and pulling, so that the light-filtering members <NUM> with different wavelengths can be replaced conveniently, and the problem that the functions of the existing household hair-removal devices cannot be conveniently switched can be solved.

It can be understood that, as an embodiment, the housing <NUM> includes an upper housing <NUM> and a lower housing <NUM>. Optionally, the upper housing <NUM> and the lower housing <NUM> can be assembled by bolting or clamping, or the upper housing <NUM> and the lower housing <NUM> are integrally formed. Specifically, in the embodiment of the present disclosure, the upper housing <NUM> and the lower housing <NUM> are assembled by means of buckle-clamping, which facilitates the disassembly and maintenance of the hair-removal apparatus <NUM> of the present disclosure. In this case, the inserting hole <NUM> may be formed by the engagement of the upper housing <NUM> and the lower housing <NUM>.

Further, as an embodiment, the sensing element <NUM> is a magnetic member, and at least one Hall element <NUM> is further disposed in the main body <NUM>. After the light-filtering member <NUM> is inserted into the body <NUM>, the Hall element <NUM> is aligned with the sensing element <NUM>.

It can be understood that the Hall element <NUM> is preset with a magnetic field strength threshold value in advance. During the process of inserting the light-filtering member <NUM> into the body <NUM>, the sensing element <NUM> gradually approaches and is eventually aligned with the Hall element <NUM>. During this process, the intensity of the magnetic field sensed by the Hall element <NUM> gradually increases until the sensing element <NUM> is completely aligned with the Hall element <NUM>, that is, when the light-filtering member <NUM> is inserted in place, the magnetic field intensity sensed by the Hall element <NUM> reaches the preset threshold. In this case, the Hall element <NUM> sends a signal to the control unit that it can be turned on, that is, the control circuit is in the on state at the Hall element <NUM>. In this state, the control unit receives the switch signal of the power switch <NUM> to start the hair-removal apparatus <NUM>, and then the light-emitting button <NUM> can be clicked to control the lamp <NUM> to emit light. When the light-filtering member <NUM> is not inserted into the body <NUM>, the Hall element <NUM> cannot sense the magnetic field strength, the power switch <NUM> does not work, and the light-emitting button <NUM> cannot control the lamp <NUM> to work.

It can be understood that the number of the Hall elements <NUM> and the number of the sensing elements <NUM> can be equal or unequal, but it should be ensured that when the light-filtering member <NUM> is inserted into the body <NUM>, at least one sensing element <NUM> corresponds to the Hall element <NUM> to ensure the hair-removal apparatus <NUM> of the present disclosure can be used normally.

It can be understood that the specific position of the sensing element <NUM> on the light-filtering member <NUM> may not be limited, as long as the filtering effect of the light-filtering member <NUM> is not affected. In this case, the Hall element <NUM> is disposed according to the position of the sensing element <NUM>, which is specifically: if and only if the light-filtering member <NUM> is inserted into the body <NUM>, the magnetic field strength of the Hall element <NUM> that receives the corresponding sensing element <NUM> thereof will reach the preset threshold thereof.

Referring to <FIG>, further, as an embodiment, the light-filtering member <NUM> includes a light-filtering portion <NUM> and a handle portion <NUM>, and the sensing element <NUM> is disposed on the handle portion <NUM>. When the light-filtering member <NUM> is inserted into the body <NUM>, the position of the light-filtering portion <NUM> corresponds to that of the light-exit opening <NUM>, and one end of the handle portion <NUM> away from the light-filtering portion <NUM> is exposed from the main body <NUM>, that is, one end of the handle portion <NUM> away from the light-filtering portion <NUM> is exposed from the main body <NUM> through the inserting hole <NUM>. Thus, the user only needs to touch the handle portion <NUM> when replacing the light-filtering member <NUM>, which prevents user's hands from being in contact with and contaminating the light-filtering portion <NUM> to cause the filtering effect to deteriorate.

Optionally, the sensing element <NUM> can be hidden and disposed in the handle portion <NUM> by means of encapsulation, plastic sealing, etc.; or, an accommodating groove can be defined on the handle portion <NUM> for disposing the sensing element <NUM>, so that the sensing element <NUM> can be embedded in the handle portion <NUM>, which ensures that the sensing element <NUM> does not affect the insertion and removal of the light-filtering member <NUM>, and ensures the stability of the position of the sensing element <NUM>.

Further, a flange <NUM> is formed at one end of the handle portion <NUM> exposed out of the main body <NUM>, and the protruding direction of the flange <NUM> is perpendicular to the insertion direction of the light-filtering member <NUM>. By arranging the flange <NUM>, when the light-filtering member <NUM> is pulled out, user's fingers can have a force point, which prevents the hand from slipping and enhances the practicality thereof.

A fixing member <NUM> is further provided on the handle portion <NUM>, and a groove <NUM> is defined in the mounting side-hole <NUM> corresponding to the fixing member <NUM>. After the light-filtering member <NUM> is inserted into the body <NUM>, the fixing element <NUM> is clamped into the groove <NUM>. By arranging the fixing member <NUM> and the groove <NUM> corresponding the fixing member <NUM>, the light-filtering member <NUM> can be limited and fixed after the light-filtering member <NUM> is inserted into the body <NUM>, which prevents the light-filtering member <NUM> from shaking or even sliding down by itself to affect user experience.

Optionally, the fixing member <NUM> may be arranged on the same side or the different side of the sensing element <NUM>, as long as the fixing member <NUM> does not affect the arrangement of the sensing element <NUM>. Specifically, in the embodiment of the present disclosure, the fixing member <NUM> is disposed on the different side of the sensing element <NUM>.

An avoidance slot <NUM> is further defined at the position of the handle portion <NUM> corresponding to the fixing member <NUM>. The fixing member <NUM> includes a fixed end <NUM> and a swinging end <NUM>. The fixed end <NUM> is connected to the inner wall of the avoidance slot <NUM>, the swinging end <NUM> is suspended on the avoidance slot <NUM>, and a convex portion <NUM> is provided on the side of the swinging end <NUM> away from the avoidance slot <NUM>. In a natural state, the convex portion <NUM> protrudes from the handle portion <NUM>, and both sides of the convex portion <NUM> in the insertion and removal direction are configured as slope surfaces, so that when the light-filtering member <NUM> enters and exits the body <NUM>, the swinging end <NUM> can be smoothly squeezed into the avoidance slot <NUM> by the slope surfaces, the phenomenon of jamming will not occur, and the practicability thereof will be enhanced.

A resilient member (not shown) is further disposed in the body <NUM>, and the resilient member is in contact with the light-filtering member <NUM> for ejecting the light-filtering member <NUM> from the body <NUM>. By arranging the resilient member, the light-filtering member <NUM> can be more conveniently taken out and replaced by means of pressing and rebounding, which improves user experience.

Referring to <FIG>, the light-emitting mechanism <NUM> further includes a front glass sheet <NUM>, which is disposed in the body <NUM> and separates the light-transmitting crystal <NUM> and the lamp <NUM>. After the light-filtering member <NUM> is inserted into the main body <NUM>, the light-filtering portion <NUM> is located on the side of the front glass sheet <NUM> close to the lamp <NUM>, and the light-filtering portion <NUM> is parallel to the front glass sheet <NUM>. By arranging the front glass sheet <NUM>, dust can be prevented from entering from the light-exit opening <NUM>, which affects the normal light-emitting of the lamp <NUM>. In addition, the front glass sheet <NUM> can be a filter specially designed to filter pure harmful light such as ultraviolet rays to add safety protection for user's skin.

It can be understood that the front glass sheet <NUM> is disposed on the side of the light-transmitting crystal <NUM> close to the lamp <NUM>, and the light emitted by the lamp <NUM> first passes through the front glass sheet <NUM> and then through the light-transmitting crystal <NUM> to reach the skin. When the light-filtering member <NUM> is inserted into the body <NUM>, the light-filtering portion <NUM> is also located between the light-transmitting crystal <NUM> and the lamp <NUM>, and the position of the light-filtering portion <NUM> corresponds to that of the light-transmitting crystal <NUM>, that is, the light reaching the light-transmitting crystal <NUM> after filtering is the light of a corresponding efficacy wavelength, such as hair-removal wavelength, whitening wavelength, acne-treatment wavelength, etc..

Further, a hollow separating member <NUM> is disposed in the main body <NUM>, and the separating member <NUM> seals the region between the light-transmitting crystal <NUM> and the front glass sheet <NUM>. It can be understood that the light-transmitting crystal <NUM> and the front glass sheet <NUM> are fully abut on two sides of the separating member <NUM> respectively, so that a vacuum is always maintained between the light-transmitting crystal <NUM> and the front glass sheet <NUM>, that is, the separating member <NUM> seals the region between the light-transmitting crystal <NUM> and the front glass sheet <NUM> to prevent gas liquefaction and fogging on the sides facing oppositely of the front glass sheet <NUM> and/or the transparent crystal <NUM>, which further improves the light-emitting quality. In addition, hot air is easily liquefied into water droplets when cold, and the water droplets may cause safety problems when being in contact with the circuit board of the hair-removal apparatus <NUM>. By disposing the separating member <NUM> to seal the region between the light-transmitting crystal <NUM> and the front glass sheet <NUM>, the use safety of the hair-removal apparatus <NUM> is improved.

The light-emitting mechanism <NUM> further includes a hollow partition plate <NUM> disposed on the side of the front glass sheet <NUM> close to the lamp <NUM>. One end of the partition plate <NUM> corresponding to the mounting side-hole <NUM> defines an opening <NUM>, and the other end of the partition plate <NUM> away from the opening <NUM> defines a step <NUM>. During insertion of the light-filtering member <NUM> into the body <NUM>, the light-filtering portion <NUM> enters through the opening <NUM> and finally abuts the step <NUM>. By disposing the partition plate <NUM>, the light-filtering portion <NUM> can be accurately introduced and the position thereof can be limited, and the stability of the light-filtering member <NUM> after installation can be enhanced.

Specifically, the partition plate <NUM> is made of Teflon material, which can improve the thermostability thereof.

The light-emitting mechanism <NUM> further includes a rear glass sheet <NUM> disposed on the side of the partition plate <NUM> close to the lamp <NUM>, and the front glass sheet <NUM> and the rear glass sheet <NUM> abut on two sides of the partition plate <NUM> respectively. The front glass sheet <NUM>, the partition plate <NUM> and the rear glass sheet <NUM> together form a space for accommodating the light-filtering portion <NUM>. The space is connected to ambiance through the opening <NUM> and the mounting side-hole <NUM> to prevent dust from entering the mounting side-hole <NUM> and affecting the power of the lamp <NUM>.

The light-emitting mechanism <NUM> further includes a reflective cup <NUM>, and the lamp <NUM> is arranged in the reflective cup <NUM>. At least one notch <NUM> is further defined on the partition plate <NUM>, and the reflective cup <NUM> abuts against the partition plate <NUM> and defines a ventilation hole <NUM> (as shown in <FIG>) with the notch <NUM>. By defining the ventilation hole <NUM>, the interior of the light-emitting mechanism <NUM> can further absorb external air and dissipate heat.

It can be understood that, in order to better define the ventilation hole <NUM>, a plurality of abutting blocks <NUM> can be provided at the abutting end of the reflective cup <NUM> abutting against the partition plate <NUM>, and the abutting end of the reflective cup <NUM> are misaligned with the frame on which the notch <NUM> is located. The plurality of abutting blocks <NUM> is spaced to be misaligned with the notch <NUM>, so that the ventilation hole <NUM> has a larger effective ventilation section, which can better absorb external air and dissipate heat.

Referring to <FIG>, further, the light-filtering portion <NUM> includes a light-filtering sheet <NUM> and a frame <NUM>, the frame <NUM> is connected to the handle portion <NUM>, and the light-filtering sheet <NUM> is disposed in the frame <NUM>. By disposing the frame <NUM>, it is convenient to install and fix the light-filtering sheet <NUM>, when the light-filtering member <NUM> is inserted and removed, the wear of the light-filtering sheet <NUM> can be effectively avoided, and the lifetime thereof can be increased.

Specifically, the material of the frame <NUM> is a metal, preferably a stainless steel material, and the heat-resistant and decomposition-resistant properties of the metal can ensure that the frame <NUM> can better protect the light-filtering sheet <NUM>.

Further, an interspace <NUM> is defined between the light-filtering sheet <NUM> and the handle portion <NUM>; at least one protrusion <NUM> is provided at one end of the handle portion <NUM> close to the interspace <NUM>, and the protrusion <NUM> abuts against the light-filtering sheet <NUM>. Thus, the interspace <NUM> can be used to dissipate heat, and the protrusion <NUM> can be used to support and fix the light-filtering sheet <NUM>, so that the use effect is better and the practicability is further enhanced.

Further, the handle portion <NUM> and the frame <NUM> are wrapped with an adhesive layer to avoid high-voltage leakage hurting people, ensure safe use, and further play a heat-insulation effect, so that the user will not feel burning when touching the handle portion <NUM>, which improves user experience. It can be understood that the handle portion <NUM> and the frame <NUM> can be covered with an adhesive layer by a secondary injection-molding process to ensure the overall-structure reliability and anti-creeping reliability.

Referring to <FIG>, further, the handle portion <NUM> has an anti-reverse insertion structure. As an embodiment, the anti-reverse insertion structure may be: at least one set of opposite sides of the handle portion <NUM> is asymmetrically arranged, so that the light-filtering member <NUM> can only be inserted from one direction, which prevents the reverse insertion from affecting the power-on, the light-filtering function, or strong light that may hurt the user.

Specifically, as a further embodiment, the width of one side of the handle portion <NUM> on which the sensing element <NUM> is disposed is different from that of the other side, and the shapes of the inserting hole <NUM> and the mounting side-hole <NUM> match that of the handle portion <NUM>. Optionally, the width of one side of the handle portion <NUM> on which the sensing element <NUM> is disposed may be greater than that of the other side; or, the width of one side of the handle portion <NUM> on which the sensing element <NUM> is disposed may be smaller than that of the other side. More specifically, in the embodiment of the present disclosure, the width D of one side of the handle portion <NUM> on which the sensing element <NUM> is disposed is larger than the width d of the other side (as shown in <FIG>). Thus, the reverse insertion of the light-filtering member <NUM>, which may cause the Hall element <NUM> to fail to sense the sensing element <NUM> normally, can be prevented, so that the hair-removal apparatus <NUM> of the present disclosure can be used normally and user experience will not be affected.

It can be understood that by arranging a plurality of Hall elements <NUM>, the information of the sensing element <NUM> can be recognized through different Hall elements <NUM>, and the control system intelligently controls the voltage and current of the circuit according to the different information, so that the lamp <NUM> can emit light of different intensities to obtain light sources of suitable wavelengths.

Referring to <FIG>, an example of function matching is given in the embodiment of the present disclosure. Two Hall elements <NUM> are provided in the main body <NUM>, which are respectively a Hall element 18a and a Hall element 18b, and the handle portion <NUM> defines a first position A and second position B. When the light-filtering member <NUM> is inserted into the body <NUM>, the first position A and the second position B correspond to the Hall element 18a and the Hall element 18b respectively; according to whether the sensing element <NUM> is provided on the first position A and the second position B, there are three cases: in the first case, the sensing element <NUM> is disposed at the first position A but not disposed at the second position B; the light-filtering member <NUM> in this case is set to have a whitening effect; only the Hall element 18a that has a preset threshold can sense the magnetic field strength; the Hall element 18a then sends a signal to the control system that it can be turned on and light with whitening strength can be emitted (as shown in <FIG>); in the second case, the sensing element <NUM> is disposed at the second position B but not disposed at the first position A; the light-filtering member <NUM> in this case is set to have an acne-treatment effect; only the Hall element 18b that has a preset threshold can sense the magnetic field strength; the Hall element 18b then sends a signal to the control system that it can be turned on and light with acne-treatment strength can be emitted (as shown in <FIG>); in the third case, the sensing element <NUM> is disposed at the first position A and the second position B; the light-filtering member <NUM> in this case is set to have a hair-removal effect; both the Hall element 18a and the Hall element 18b that have a preset threshold can sense the magnetic field strength; the Hall element 18a and the Hall element 18b then send a signal to the control system that they can be turned on and light with hair-removal strength can be emitted (as shown in <FIG>).

Referring to <FIG> and <FIG>, further, the body <NUM> further defines a refrigerating-sheet assembling hole <NUM>; the main body <NUM> further includes a refrigerating assembly <NUM>; the refrigerating assembly <NUM> is in contact with the light-transmitting crystal <NUM> through the refrigerating-sheet assembling hole <NUM> to refrigerate the light-transmitting crystal <NUM>.

The refrigerating assembly <NUM> includes a refrigerating sheet <NUM>, a heat-conducting substrate <NUM>, a heat-conducting pipe <NUM> and a heat-dissipating sheet <NUM>. One side (i.e. refrigerating side) of the refrigerating sheet <NUM> passes through the refrigerating-sheet assembling hole <NUM> and contacts the light-transmitting crystal <NUM>, and the other side thereof is connected to the heat-conducting substrate <NUM>, the heat-conducting pipe <NUM> and the heat-dissipating sheet <NUM> in sequence. The refrigerating surface of the refrigerating sheet <NUM> is used for refrigerating the light-transmitting crystal <NUM>, and the heat generated is conducted to the heat-dissipating sheet <NUM> through the heat-conducting substrate <NUM> and the heat-conducting pipe <NUM> in sequence for heat dissipation.

The main body <NUM> further includes a thermosensitive assembly <NUM>, and the thermosensitive assembly <NUM> penetrates through the light-emitting mechanism <NUM> and is closely attached to the light-transmitting crystal <NUM>.

The body <NUM> further defines a temperature-measuring hole <NUM>; one end of the thermosensitive assembly <NUM> penetrates through the temperature-measuring hole <NUM> to contact the light-transmitting crystal <NUM>, and the other end thereof is electrically connected to the key PCBA <NUM> and associated with the refrigerating assembly <NUM> through the key PCBA <NUM>. That is, the on-off of the refrigerating assembly <NUM> can be controlled according to the thermosensitive assembly <NUM>.

Further, the thermosensitive assembly <NUM> includes a first thermistor <NUM> and a heat-conducting silicone grease <NUM>. One side of the heat-conducting silicone grease <NUM> is in contact with the light-transmitting crystal <NUM>, and the other side thereof covers the first thermistor <NUM>, which can better sense the temperature change of the light-transmitting crystal <NUM>.

It can be understood that the light-transmitting crystal <NUM> will be heated up due to the illumination of the lamp <NUM> and cooled down with the refrigerating of the refrigerating assembly <NUM>. The illumination of the lamp <NUM> is intermittent, and the interval time is not determined according to the pressure time of the user; meanwhile, it takes time to cool down the refrigerating assembly <NUM>, the two times are difficult to unify, and the efficiency of heating and refrigerating are also different. In order to prevent potential high-temperature injury, it is necessary to turn on the refrigerating assembly <NUM> for a long time during use; as a result, the temperature may be too low to affect user experience. The first thermistor <NUM> has a preset resistance value threshold corresponding to a comfortable temperature, and the refrigerating assembly <NUM> is controlled to stop running when the temperature is too low and start running when the temperature is high, so that the light-transmitting crystal <NUM> is controlled at a suitable temperature, that is, the temperature when in contact with the skin is suitable.

Optionally, the first thermistor <NUM> can be a positive temperature coefficient thermistor, and the resistance value thereof increases as the temperature increases. The first thermistor <NUM> can be connected in parallel with the refrigerating assembly <NUM> to set a lower resistance value threshold thereof. When the temperature is lower than the critical temperature corresponding to the resistance value threshold, the current of the branch where the refrigerating assembly <NUM> is located will be so small that the refrigerating assembly <NUM> cannot be started, and the refrigerating assembly <NUM> stops working; after the temperature rises, the refrigerating assembly <NUM> operates again. The set resistance threshold corresponds to an optimum temperature, and the actual temperature fluctuates around the optimum temperature. Or, the first thermistor <NUM> may be a negative temperature coefficient thermistor, and the resistance value thereof decreases as the temperature increases. The first thermistor <NUM> can be connected in series with the refrigerating assembly <NUM> to set a larger resistance value threshold thereof. When the temperature is lower than the critical temperature corresponding to the resistance value threshold, the resistance of the branch where the refrigerating assembly <NUM> is located will be large enough and the current of the branch where the refrigerating assembly <NUM> is located will be too small to start the refrigerating assembly <NUM>, and the refrigerating assembly <NUM> stops working; after the temperature rises, the refrigerating assembly <NUM> operates again. The set resistance value threshold corresponds to an optimum temperature, and the actual temperature fluctuates around the optimum temperature.

The main body <NUM> further includes an external circuit board <NUM>, and the Hall element <NUM> and the first thermistor <NUM> are connected to the control circuit of the key PCBA <NUM> through the external circuit board <NUM>.

It can be understood that the first thermistor <NUM> needs to be close to the light-transmitting crystal <NUM> to be sensed to realize its function, so the first thermistor <NUM> needs to be far away from the key PCBA <NUM>. If connected by a cable, the section of the circuit from the first thermistor <NUM> to the key PCBA <NUM> will have no stable load, resulting in poor safety and stability of the circuit. Therefore, the external circuit board <NUM> is provided to connect the first thermistor <NUM> with the key PCBA <NUM>. The external circuit board <NUM> has an integrated circuit, which can be stably loaded by the external circuit board <NUM>, and the problems of poor safety and stability of the internal circuit of the existing household hair-removal devices are solved. In addition, the external circuit board <NUM> can be transformed into a corresponding shape according to the space where it is disposed, which can fully utilize the space and adapt to the development of miniaturization.

Optionally, the external circuit board <NUM> may entirely use a flexible circuit board material; or part of the external circuit board <NUM> may use a flexible circuit board material, and the remaining part may use a hard board material. When entirely using a flexible circuit board material, the external circuit board <NUM> can adaptively change its shape according to the size of the space where it is located and the shape of the component it is close to, so as to make reasonable use of the space. When partially using a flexible circuit board material, the turning portions of the external circuit board <NUM> can be configured as a flexible circuit board material, which can also make reasonable use of the space and enhance the practicability thereof.

Further, the external circuit board <NUM> includes a connecting section <NUM>, a conducting section <NUM> and a fixing section <NUM> that are electrically connected in sequence. The fixing section <NUM> is positioned on the light-emitting mechanism <NUM>; the conducting section <NUM> is in close contact with two adjacent sides of the light-emitting mechanism <NUM> to connect the thermosensitive assembly <NUM>; the connecting section <NUM> is electrically connected to the key PCBA <NUM>.

Optionally, the fixing section <NUM> may be fixed on the body <NUM> by means of melt glue or bolt connection or snap connection.

Further, the Hall element <NUM> is electrically connected to the fixing section <NUM>, and the fixing section <NUM> is parallel to the insertion direction of the light-filtering member <NUM>.

Further, the connecting section <NUM> is bent toward the main-control PCBA <NUM> and defines a first notch <NUM>, and part of electronic elements <NUM> on the main-control PCBA <NUM> are accommodated in the first notch <NUM>.

Further, the conducting section <NUM> is bent toward the light-transmitting crystal <NUM> and defines a second notch <NUM>, and the body <NUM> wraps the light-transmitting crystal <NUM> and then snaps into the second notch <NUM>.

Further, a gap <NUM> is defined between the main-control PCBA <NUM> and the body <NUM>, and at least part of the conducting section <NUM> is disposed in the gap <NUM>.

Further, after the connecting section <NUM> and the conducting section <NUM> are connected, an included angle θ is formed (θ shown in <FIG>), and the included angle θ is in the range of <NUM>°- <NUM>°, preferably <NUM>°, so that the first notch <NUM> has a larger accommodating space.

Further, the bending direction of the connecting section <NUM> is perpendicular to the bending direction of the conducting section <NUM>, so that the layers of the first notch <NUM> and the second notch <NUM> correspond to the layers formed by the main-control PCBA <NUM> and the light-emitting mechanism <NUM>.

The light-emitting mechanism <NUM> further includes a pressing plate <NUM> covered on the conducting section <NUM>; the portion of the pressing plate <NUM> covering the conducting section <NUM> is placed in the gap <NUM>, and the shape of the pressing plate <NUM> is matched with that of part of the surface of the body <NUM>, so that the conducting section <NUM> is close to the surface of the body <NUM> to improve compactness and enhance the stability of the external circuit board <NUM>. The pressing plate <NUM> is partially positioned in the gap <NUM>, which can further save space.

Specifically, the material of the pressing plate <NUM> is moisture-proof foamed cotton to protect the conducting section <NUM> from moisture.

Further, a second thermistor <NUM> is disposed on the key PCBA <NUM> and penetrates into the heat-dissipating mechanism <NUM> to detect the temperature inside the heat-dissipating mechanism <NUM>.

Further, the heat-dissipating mechanism <NUM> includes an air-guiding structure <NUM>; the main-control PCBA <NUM> defines an assembling hole <NUM> corresponding to the air-guiding structure <NUM>; the air-guiding structure <NUM> defines a penetrating hole <NUM> corresponding to the second thermistor <NUM>; the air-guiding structure <NUM> penetrates through the assembling hole <NUM> and is in close contact with the key PCBA <NUM>; the second thermistor <NUM> is inserted into the penetrating hole <NUM> to measure the temperature of the airflow in the air-guiding structure <NUM>. It can be understood that if the temperature of the hair-removal apparatus <NUM> is too high, the internal components will be accelerated aging, the lifetime will be affected, and there will be potential safety hazards. An air duct is formed in the air-guiding structure <NUM>. When the light-emitting mechanism <NUM> emits light, heat is generated, and the generated heat is mainly dissipated through the air duct. In this case, the temperature threshold can be set. When the second thermistor <NUM> in the air duct senses that the temperature is too high and exceeded the set threshold, the automatic shutdown control program will be executed to ensure that the hair-removal apparatus <NUM> can run within a safe temperature.

It can be understood that, in order to prevent air leakage and interference at the penetrating hole <NUM>, the air-guiding structure <NUM> is in close contact with the key PCBA <NUM> around the penetrating hole <NUM>.

Claim 1:
A hair-removal apparatus, comprising a main body (<NUM>) and a light-filtering member (<NUM>) detachably connected to the main body; at least one sensing element (<NUM>) being disposed on the light-filtering member; wherein, when the light-filtering member is connected to the main body, the main body is configured to recognize the sensing element to determine the type of the light-filtering member and whether the light-filtering member is inserted in a proper position.