CN220773463U - Skin care device - Google Patents

Abstract

The utility model discloses a skin care device comprising: a care assembly; the heat exchange piece is used for generating temperature change when being electrified, and the heat exchange piece and the nursing component form heat transfer; the handle comprises a shell and a thermal management assembly, the shell is connected with the nursing assembly, the thermal management assembly is arranged in the shell and is in contact with the heat exchange piece, and the thermal management assembly exchanges heat with the heat exchange piece through the thermal management assembly to dissipate heat or cool the heat exchange piece; temperature detecting means for detecting a temperature of the thermal management assembly; and the controller is electrically connected with the heat exchange piece and the temperature detection device respectively, and controls the working state of the heat exchange piece according to the temperature detected by the temperature detection device. The skin care device provided by the utility model can detect the temperature of the thermal management assembly, regulate the working state of the heat exchange piece according to the temperature of the thermal management assembly, control the temperature of the handle, and has the advantages of low noise and low energy consumption.

Description

Skin care device

Technical Field

The utility model relates to the technical field of nursing equipment, in particular to skin nursing equipment.

Background

The skin care device utilizes physical technology, electronic technology, optical technology, etc. to beautify the human body. The development and working modes are divided into: current, electric pulse, micro vibration, light irradiation, body temperature rise, microwaves, vacuum adsorption, laser, ultrasonic waves, water bath, strong light beauty treatment, magnetic field mechanism, radio frequency, electronic introduction, fumigation beauty treatment, pure oxygen penetration and the like, and the application of the skin care equipment is wider along with the higher and higher requirements of people on self beauty treatment in recent years.

When the skin care device is in operation, heat generated by the operation of the electronics of the skin care device can accumulate inside the device, resulting in an increase in the temperature of the device, which can be perceived by a user as scalding the hand.

Disclosure of Invention

The embodiment of the utility model provides skin care equipment, which can detect the temperature of a thermal management assembly, adjust the working state of a heat exchange piece according to the temperature of the thermal management assembly, effectively control the temperature of a handle, ensure holding experience and have the advantages of low noise and low energy consumption.

To achieve the above object, an embodiment of the present utility model provides a skin care device including: a care assembly; the heat exchange piece is used for generating temperature change when being electrified, and the heat exchange piece and the nursing assembly form heat transfer; the handle comprises a shell and a thermal management assembly, the shell is connected with the nursing assembly, the thermal management assembly is arranged in the shell and is in contact with the heat exchange piece, and the thermal management assembly performs heat dissipation or cooling on the heat exchange piece through heat exchange with the heat exchange piece; temperature detecting means for detecting a temperature of the thermal management assembly; and the controller is electrically connected with the heat exchange piece and the temperature detection device respectively, and controls the working state of the heat exchange piece according to the temperature detected by the temperature detection device.

In some of these embodiments, the thermal management assembly comprises: and the heat conduction piece is contacted with the heat exchange piece, and the temperature detection device is used for detecting the temperature of the heat conduction piece.

In some embodiments, the heat conducting member has a first end face, a second end face, and side faces, the first end face and the second end face being provided on opposite sides of the heat conducting member, the side faces being located between the first end face and the second end face; wherein the first end face is in contact with the heat exchange member, and at least one of the second end face and the side face is in contact with the temperature detection device.

In some embodiments, the temperature detecting device is disposed on an outer surface of the heat conducting member.

In some embodiments, the plurality of temperature detecting devices are plural, and at least two of the plurality of temperature detecting devices are disposed at different positions of the heat conducting member.

In some of these embodiments, a plurality of the temperature detection devices include: the first temperature detection device corresponds to a first temperature threshold, and a first interval is reserved between the first temperature detection device and the heat exchange piece; the second temperature detection device corresponds to a second temperature threshold, and a second interval is reserved between the second temperature detection device and the heat exchange piece; wherein the first temperature threshold is greater than the second temperature threshold, and the first pitch is less than the second pitch.

In some embodiments, the heat conductive member is configured in a sheet-like or strip-like structure, and the temperature detecting device is located at one side in a thickness direction of the heat conductive member.

In some embodiments, the heat conducting member is provided with a mounting position, and the temperature detecting device is provided at the mounting position and is in direct contact with the heat conducting member.

In some embodiments, the temperature detection device is connected with the heat conducting piece through heat conducting glue, and the heat conducting coefficient of the heat conducting glue is not less than 0.3W/mk and not more than 5W/mk.

In some of these embodiments, the thermal management assembly comprises: the phase-change heat storage part is contacted with the heat conduction part, and when the temperature of the heat conduction part exceeds the phase-change temperature of the phase-change heat storage part, the phase-change heat storage part is subjected to phase change to absorb the heat of the heat conduction part; the heat conduction coefficient of the heat conduction piece is larger than that of the phase change heat storage piece.

In some of these embodiments, the thermal management assembly comprises: a heat conductive member in contact with the heat exchange member; the phase-change heat storage part is contacted with the heat conduction part, and when the temperature of the heat conduction part exceeds the phase-change temperature of the phase-change heat storage part, the phase-change heat storage part is subjected to phase change to absorb the heat of the heat conduction part; the heat exchange device comprises a heat conducting piece, a phase change heat storage piece and a heat exchange piece, wherein a first contact area is arranged between the heat conducting piece and the phase change heat storage piece, a second contact area is arranged between the heat exchange piece and the heat conducting piece, and the first contact area is larger than the second contact area.

In some of these embodiments, the ratio of the first contact area to the second contact area is not less than 1.5.

In some embodiments, the heat conducting member has a first end face, a second end face, and side faces, the first end face and the second end face being provided on opposite sides of the heat conducting member, the side faces being located between the first end face and the second end face; the second end face is in contact with the phase change heat storage piece, and the area of the first end face is smaller than that of the second end face; and/or the side surface is in contact with the phase change heat storage piece, and the area of the first end surface is smaller than that of the side surface; and/or the side surface and the second end surface are in contact with the phase-change heat storage piece, and the area of the first end surface is smaller than the sum of the area of the side surface and the area of the second end surface.

In some embodiments, the end of the heat exchange member contacting the thermal management assembly has a heating state and a cooling state, and the controller adjusts the temperature of the thermal management assembly by switching the heat exchange member between the heating state and the cooling state such that the temperature of the thermal management assembly does not change by more than 30 ℃.

In some of these embodiments, the temperature of the exterior surface of the housing varies by no more than 15 ℃ over a single duty cycle of the heat exchange member.

In some of these embodiments, the temperature of the exterior surface of the housing varies by no more than 5 ℃ over a single duty cycle of the heat exchange member.

In some of these embodiments, the skin care device further comprises: and the heat insulation piece is positioned between the outer surface of the thermal management assembly and the inner surface of the shell and used for blocking the thermal management assembly from transferring heat to the outer surface of the shell.

In some of these embodiments, the skin care device further comprises: and the heat absorbing member is positioned between the outer surface of the heat insulating member and the inner surface of the shell and is used for absorbing heat transferred from the heat insulating member to the outer surface of the shell.

According to the skin care device of the embodiment of the utility model, the heat management component is contacted with the heat exchange piece, the heat exchange is carried out between the heat management component and the heat exchange piece, the heat of the heat exchange piece is transferred into the heat management component, the heat dissipation or cooling of the heat exchange piece is carried out by utilizing the heat management component, the temperature of the heat management component is detected by utilizing the temperature detection device, the temperature detected by the temperature detection device is fed back to the controller, thus the controller can acquire the temperature of the heat management component in real time, the temperature change trend in the device is predicted, the working state of the heat exchange piece is timely and accurately regulated according to the temperature of the heat management component, the working state of the heat exchange piece comprises the start-stop of the heat exchange piece, the increase or decrease of the power of the heat exchange piece, and the switching between the refrigeration and the heating of one end of the heat exchange piece contacted with the heat management component, the heat quantity transferred from the heat exchange piece to the heat management component is increased or reduced so as to control the temperature change trend of the heat management component, the purpose of controlling the temperature in the equipment is achieved, and after the temperature change trend of the heat management component, the heat exchange quantity between the heat management component and the shell in unit time can be changed so as to avoid severe temperature change of the shell.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a skin care device according to an embodiment of the present utility model;

fig. 2 is an exploded view of a skin care device according to an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a skin care device of an embodiment of the present utility model;

fig. 4 is a schematic diagram illustrating the cooperation of the phase change heat storage member and the heat conduction member of the skin care apparatus according to the embodiment of the present utility model;

fig. 5 is a schematic view showing the cooperation of the heat insulating member and the heat absorbing member of the skin care apparatus according to the embodiment of the present utility model;

fig. 6 is an enlarged partial schematic view of the area a in fig. 5.

Fig. 7 is a schematic structural view of a thermal management assembly of a skin care device according to an embodiment of the present utility model.

Fig. 8 is a schematic structural view of a heat insulating member and a heat absorbing member of the skin care apparatus according to the embodiment of the present utility model.

Reference numerals illustrate:

the skin care device 1, the care assembly 100, the heat exchange member 200, the handle 300, the housing 310, the phase change heat storage member 320, the heat conducting member 330, the first end face 331, the second end face 332, the side face 333, the heat insulating member 340, the heat absorbing member 350, the thermal management assembly 370.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with some aspects of the utility model as detailed in the accompanying claims.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The skin care device 1 is a device such as a beauty instrument or a depilatory instrument and is used for performing skin care for a user to realize a beauty effect. The skin care apparatus 1 includes a care assembly 100, a handle 300, a temperature detecting device and a controller, etc., the care assembly 100 is connected with the handle 300, the temperature detecting device and the controller are installed in the handle 300, a user controls a position where the care assembly 100 contacts human skin by holding the handle 300, and controls a moving direction of the care assembly 100, and the care assembly 100 acts on the user skin. The nursing assembly 100 or the handle 300 is provided with the heat exchange member 200, and the heat exchange member 200 generates temperature change when being electrified, and is used for refrigerating or heating so that the nursing assembly 100 can perform cold compress or hot compress on a human body, the temperature detection device is used for detecting the temperature in the handle 300, the controller is respectively connected with the temperature detection device and the heat exchange member 200, and the controller controls the temperature and the working state of the heat exchange member 200 according to the temperature fed back by the temperature detection device.

The skin care apparatus 1 according to an embodiment of the present utility model is described below with reference to the drawings.

As shown in fig. 1-2, the skin care device 1 of the embodiment of the present utility model comprises a care assembly 100, a heat exchanging member 200, a handle 300, a temperature detecting means, and a controller.

The heat exchange member 200 is configured to produce a temperature change when energized, and the heat exchange member 200 is in heat transfer with the care assembly 100. The handle 300 includes a housing 310 and a thermal management assembly 370, the housing 310 is connected with the care assembly 100, the thermal management assembly 370 is disposed in the housing 310 and contacts the heat exchanging member 200, and the thermal management assembly 370 exchanges heat with the heat exchanging member 200 by itself to dissipate heat or cool the heat exchanging member 200. The temperature detection device is used for detecting the temperature of the thermal management assembly 370, the controller is electrically connected with the heat exchange member 200 and the temperature detection device, and the controller controls the working state of the heat exchange member 200 according to the temperature detected by the temperature detection device.

For example, the heat exchanging member 200 is a semiconductor refrigerator. The working states of the heat exchange member 200 include: start-stop of heat exchange member 200, increase or decrease in power of heat exchange member 200, and switching between cooling and heating of the end of heat exchange member 200 in contact with thermal management assembly 370.

According to the skin care device 1 of the embodiment of the present utility model, the heat exchanging member 200 is used for generating temperature change when being electrified, and the heat exchanging member 200 and the care assembly 100 form heat transfer, so that the heat exchanging member 200 can heat or cool the care assembly 100, so that the care assembly 100 can realize cold compress or hot compress on human skin. The handle 300 includes a housing 310, the housing 310 being connected to the care assembly 100, and a user adjusts the direction of the care assembly 100 and the direction of movement by grasping the housing 310 of the handle 300.

In addition, the handle 300 further includes a thermal management assembly 370, wherein the thermal management assembly 370 is disposed in the housing 310 and is in contact with the heat exchange member 200, and the thermal management assembly 370 exchanges heat with the heat exchange member 200 by itself to dissipate heat or cool the heat exchange member 200.

The skin care device 1 of the embodiment of the utility model performs heat dissipation and cooling on the heat exchange piece 200 through the heat management component 370, has good heat dissipation effect, stable temperature inside the device and small variation range of the surface temperature of the shell 310. Compared with the skin care equipment with the fan arranged for cooling the heat exchange piece in the prior art, the heat exchange piece has no noise generated by the fan, can realize a mute effect, can play a role in heat dissipation and energy storage without power supply, reduces electric energy loss, and has low energy consumption.

When one end of the heat exchange member 200 facing the care assembly 100 is cooled, heat of the heat exchange member 200 can be transferred to the heat management assembly 370, so that heat accumulation on the heat exchange member 200 is avoided, cooling efficiency of the heat exchange member 200 is guaranteed, damage to the heat exchange member 200 is avoided, in addition, the heat management assembly 370 can store heat energy of the heat exchange member 200, after one end of the heat exchange member 200 facing the care assembly 100 stops cooling, heat energy stored by the heat management assembly 370 can be gradually released, heat energy on the heat management assembly 370 cannot be largely conducted to the shell 310 in a short time, and temperature of the shell 310 is prevented from being greatly changed, so that temperature change of the shell 310 is not large.

In addition, the temperature detecting device is used for detecting the temperature of the thermal management assembly 370, the controller is electrically connected with the heat exchanging element 200 and the temperature detecting device respectively, and the controller controls the working state of the heat exchanging element 200 according to the temperature detected by the temperature detecting device.

In this way, the temperature of the thermal management assembly 370 can be detected quickly, directly and accurately by the temperature detection device, the temperature detection device feeds back the detected temperature of the thermal management assembly 370 to the controller, the controller can acquire the temperature of the thermal management assembly 370 in real time, predict the temperature change trend in the device, and manage the working state of the heat exchange member 200 according to the temperature of the thermal management assembly 370 detected by the temperature detection device, for example, the controller can adjust the power of the heat exchange member 200, the start and stop of the heat exchange member 200 and the heating or cooling of one end of the heat exchange member 200 facing the care assembly 100, so as to increase or decrease the heat transferred by the heat exchange member 200 to the thermal management assembly 370, so as to control the temperature change trend of the thermal management assembly 370, achieve the temperature in the control device, and after the temperature change trend of the thermal management assembly 370, the heat exchange amount between the thermal management assembly 370 and the housing 310 in unit time can also change, so as to avoid the severe temperature change of the housing 310, and can keep the handle 300 in a more reliable temperature range, prevent the handle 300 from being supercooled or overheated, and ensure the holding experience.

The thermal management assembly 370 is a major component of the skin care device 1, and the temperature of the thermal management assembly 370 has a large influence on the temperature inside the skin care device 1 and the housing 310. Compared with the temperature detection device used for detecting the temperature of other positions of the handle 300, the temperature detection device detects the temperature of the thermal management component 370, so that the device temperature can be obtained more timely and accurately, the temperature of the device inside and the temperature of the shell 310 can be further managed, and the technical effects that hands cannot be scalded and the surface temperature of the shell 310 is not greatly changed are achieved. The temperature of the outer surface of the housing 310 may be lower than the temperature of the thermal management assembly 370, and when the temperature of the thermal management assembly 370 reaches a preset temperature, the temperature of the outer surface of the housing 310 is far lower than the preset temperature, so that hands are not scalded. Detecting the temperature of the thermal management assembly 370 can timely and accurately predict the temperature variation trend of the outer surface of the housing 310, and reduce the temperature variation amplitude of the outer surface of the housing 310 by controlling the heat exchange member 200.

In this way, the skin care device 1 according to the embodiment of the present utility model can detect the temperature of the thermal management assembly 370, and adjust the working state of the heat exchange member 200 according to the temperature of the thermal management assembly 370, so as to effectively control the temperature of the handle 300, ensure the holding experience, and further have the advantages of low noise and low energy consumption.

As shown in fig. 2 to 4, the thermal management assembly 370 includes a heat conductive member 330, the heat conductive member 330 is in contact with the heat exchanging member 200, and the temperature detecting device is used for detecting the temperature of the heat conductive member 330. Wherein the heat conductive member 330 is at least one of a metal member and a heat conductive plastic, and the heat conductive member 330 includes aluminum, for example. The heat conductivity of the heat conducting member 330 is relatively high, the heat conducting member 330 is in contact with the heat exchanging member 200, the heat exchanging efficiency between the heat conducting member 330 and the heat exchanging member 200 is high, the heat conducting member 330 is more sensitive to temperature change, when the working state of the heat exchanging member 200 changes, the temperature of the heat conducting member 330 can be changed immediately, and the heat exchanging member 200 is a main heat source in the equipment, so that the temperature change in the equipment is mainly influenced by the temperature change of the heat exchanging member 200, the temperature change trend in the equipment in a future period can be judged through the temperature change trend of the heat conducting member 330, the temperature change trend in the equipment can be indirectly judged through detecting the temperature of the heat conducting member 330, that is, the temperature change trend of the shell 310 can be judged more quickly through detecting the temperature of the heat conducting member 330, the test timeliness is good, and the working state of the heat exchanging member 200 can be reliably regulated, so that the hand scalding or the hand freezing can be avoided.

As shown in fig. 2 to 4, the heat conducting member 330 has a first end surface 331, a second end surface 332, and a side surface 333, the first end surface 331 and the second end surface 332 are disposed on opposite sides of the heat conducting member 330, and the side surface 333 is disposed between the first end surface 331 and the second end surface 332. Wherein the first end surface 331 is in contact with the heat exchange member 200, and at least one of the second end surface 332 and the side surface 332 is in contact with the temperature detecting means.

Like this, the relative position arrangement between temperature-detecting device and the heat conduction piece 330 is more various, is favorable to applying skin care equipment 1 to different environment to temperature-detecting device and heat exchange piece 200 are not connected with the coplanar of heat conduction piece 330, and heat exchange piece 200 is to the path length of temperature-detecting device heat transfer, and heat exchange piece 200 unit time heat transfer to temperature-detecting device reduces, reduces heat exchange piece 200 and produces interference probability and interference range to temperature-detecting device's testing result.

The temperature detecting device is arranged on the outer surface of the heat conducting piece 330, so that the temperature detecting device and the heat conducting piece 330 are convenient to assemble and disassemble, the processing difficulty of the heat conducting piece 330 is reduced, and the production efficiency is improved.

The plurality of temperature detecting devices are provided, and at least two of the plurality of temperature detecting devices are disposed at different positions of the heat conducting member 330. That is, the plurality of temperature detecting devices detect the temperatures of at least two positions of the heat conducting member 330, and the controller controls the working state of the heat exchanging member 200 according to the temperatures detected by the plurality of temperature detecting devices, for example, the temperatures detected by the plurality of temperature detecting devices are weighted according to a certain weight, so that the temperature of the whole heat conducting member 330 can be known, the influence caused by local special temperature is avoided, and the accuracy of temperature detection is improved. And meanwhile, the heat exchange piece 200 is prevented from being controlled by mistake due to the damage of one or a plurality of temperature detection devices, so that the working reliability of the skin care equipment 1 is ensured.

Further, the plurality of temperature detecting means includes a first temperature detecting means and a second temperature detecting means. The first temperature detecting device corresponds to a first temperature threshold, a first interval is formed between the first temperature detecting device and the heat exchanging element 200, the second temperature detecting device corresponds to a second temperature threshold, and a second interval is formed between the second temperature detecting device and the heat exchanging element 200. Wherein the first temperature threshold is greater than the second temperature threshold and the first spacing is less than the second spacing.

For example, when the first temperature detecting device detects that the temperature is not lower than the first temperature threshold, or when the second temperature detecting device detects that the temperature is not lower than the second temperature threshold, the controller controls the heat exchanging element 200 to reduce the power or stop working, or the heating state of the end of the heat exchanging element 200 facing the thermal management assembly 370 is changed to the cooling state.

In this way, the temperature threshold of the temperature detecting device gradually increases as the distance from the heat exchanging element 200 decreases, and since the temperature of the region of the heat conducting element 330 itself gradually increases as it approaches the heat exchanging element 200, the temperature threshold of the temperature detecting device is adjusted according to the distance between the temperature detecting device and the heat exchanging element 200, and the distance between the temperature detecting device and the heat exchanging element 200 and the temperature threshold of the temperature detecting device are inversely related.

As shown in fig. 2, the heat conductive member 330 is constructed in a sheet-like or strip-like structure, and the temperature detecting means is located at one side of the heat conductive member 330 in the thickness direction. Thus, the contact area between the heat conducting piece 330 and the temperature detecting device is large, the temperature detecting result of the temperature detecting device corresponding to the heat conducting piece 330 is more accurate, the connection strength between the temperature detecting device and the heat conducting piece 330 is high, and the stable contact between the temperature detecting device and the heat conducting piece 330 is guaranteed.

The heat conducting member 330 is provided with an installation position, and the temperature detecting device is disposed at the installation position and is in direct contact with the heat conducting member 330. Wherein, the mounted position is the structure such as mounting groove, connects through joint, threaded connection, interference fit or direct mode such as setting up at the mounting groove between temperature-detecting device and the heat conduction piece 330, like this direct contact between temperature-detecting device and the heat conduction piece 330 is favorable to improving the accuracy that temperature-detecting device detected the temperature of heat conduction piece 330.

The temperature detection device further comprises heat-conducting glue. Specifically, the temperature detecting device is connected with the heat conducting member 330 through heat conducting glue, and the heat conducting coefficient of the heat conducting glue is not less than 0.3W/mk and not more than 5W/mk. Through setting up the heat conduction glue, can fill the clearance between temperature-detecting device and the heat conduction piece 330, carry out heat exchange through the heat conduction glue between temperature-detecting device and the heat conduction piece 330, heat exchange efficiency is higher, and the heat transfer volume in the unit time between temperature-detecting device and the heat conduction piece 330 is more, increases timeliness and the accuracy of detection to guarantee the joint strength between temperature-detecting device and the heat conduction piece 330, temperature-detecting device's stability is good.

The thermal management assembly further includes a phase-change heat storage member 320, as shown in fig. 2-4 and 7, and the thermal management assembly 370 includes the phase-change heat storage member 320, wherein the phase-change heat storage member 320 contacts with the heat conducting member 330, and when the temperature of the heat conducting member 330 exceeds the phase-change temperature of the phase-change heat storage member 320, the phase-change heat storage member 320 changes phase by itself to absorb heat of the heat conducting member 330. For example, the phase change heat storage member 320 is made of a high-efficiency heat absorbing phase change material with rubber as a carrier, and the phase change material has the advantages of low density, large specific heat capacity, high rebound resilience and high heat absorption value, absorbs heat surge, delays temperature rise, and meets the application requirements of high heat absorption value and long-term reliable heat in a limited space.

Wherein the thermal conductivity of the thermal conductive member 330 is greater than that of the phase change thermal storage member 320. The heat conduction coefficient of the heat conduction member 330 is set to be relatively high, so that the heat of the heat exchange member 200 can be transferred more quickly, and the heat accumulation of the heat exchange member 200 can be effectively avoided. The heat conductivity of the phase change heat storage member 320 is lower than that of the heat conductive member 330, and when the skin care device completes one working cycle, the heat release speed of the phase change heat storage member 320 is slow, so that the temperature in the device can be prevented from rising rapidly again.

The temperature of the phase-change heat storage element 320 is unchanged in the phase-change process, and after the phase-change process is completed by all phase-change materials absorbing a large amount of heat to the phase-change heat storage element 320, the temperature rise change can only occur after the heat is absorbed again, so that the temperature of the phase-change heat storage element 320 is kept stable in the phase-change process, and the holding comfort of a user is high.

As shown in fig. 2-4 and 7, the thermal management assembly 370 includes a thermally conductive member 330 and a phase change heat storage member 320.

The heat transfer member 330 contacts the heat transfer member 200, the phase change heat storage member 320 contacts the heat transfer member 200, and when the temperature of the heat transfer member 200 exceeds the phase change temperature of the phase change heat storage member 320, the phase change heat storage member 320 changes phase by itself to absorb heat of the heat transfer member 330. The heat conducting member 330 and the phase change heat storage member 320 have a first contact area therebetween, and the heat exchanging member 200 and the heat conducting member 330 have a second contact area therebetween, wherein the first contact area is larger than the second contact area.

For example, the phase change heat storage member 320 is made of a high-efficiency heat absorbing phase change material with rubber as a carrier, and the phase change material has the advantages of low density, large specific heat capacity, high rebound resilience and high heat absorption value, absorbs heat surge, delays temperature rise, and meets the application requirements of high heat absorption value and long-term reliable heat in a limited space.

Specifically, when the temperature of the heat conducting member 330 exceeds the phase change temperature of the phase change heat storage member 320, the phase change heat storage member 320 absorbs the heat of the heat conducting member 330 through the phase change of itself, the temperature of the phase change heat storage member 320 is unchanged in the phase change process, and after all the phase change materials absorbing a large amount of heat to the phase change heat storage member 320 complete the phase change process, the temperature rise change occurs only after absorbing the heat again, so that it is known that the temperature of the phase change heat storage member 320 is kept stable all the time in the phase change process, and the holding comfort of the user is high.

The care module 100 of the skin care apparatus for home use is generally small in size and thus limited by the size of the care module 100, the volume of the heat exchanging member 200 is small, the heat conducting member 330 is used to conduct and diffuse the heat of the heat exchanging member 200, and the heat conducting member 330 is preferably made of a material having a large heat conductivity so that the heat can be rapidly conducted from the heat exchanging member 200 to the heat conducting member 330, and the heat exchanging efficiency between the heat conducting member 330 and the heat exchanging member 200 is high due to the large heat conductivity of the heat conducting member 330 and the large temperature difference between the heat exchanging member 200 and the heat conducting member 330 in most cases. The first contact area is the heat exchange area between the heat conducting piece 330 and the phase-change heat storage piece 320, the second contact area is the heat exchange area between the heat exchanging piece 200 and the heat conducting piece 330, the heat exchange area between the phase-change heat storage piece 320 and the heat conducting piece 330 is larger than the heat exchange area between the heat exchanging piece 200 and the heat conducting piece 330, more areas are reserved between the phase-change heat storage piece 320 and the heat conducting piece 330 for exchanging heat simultaneously, the heat exchange efficiency between the phase-change heat storage piece 320 and the heat conducting piece 330 is improved by increasing the first contact area, and the phase-change heat storage piece 320 can absorb heat on the heat conducting piece 330 more rapidly, so that the heat balance of the skin care equipment 1 is realized. On the one hand, the heat quantity of the heat conducting piece 330 diffused into the equipment is reduced, the temperature rise in the equipment is slowed down, the temperature change range of the surface of the shell 310 is small, the hand is not scalded, and on the other hand, a larger temperature difference is kept between the heat conducting piece 330 and the heat exchanging piece 200, so that the heat of the heat exchanging piece 200 can be transferred to the heat conducting piece 330 more quickly, and the heat dissipation efficiency of the heat exchanging piece 200 is increased.

In some embodiments of the utility model, the ratio of the first contact area to the second contact area is not less than 1.5. For example, the ratio of the first contact area to the second contact area is 1.5, 1.6, 1.7, 1.8, 1.9 or 2.

When the ratio of the first contact area to the second contact area is smaller than 1.5, the first contact area is relatively close to the second contact area, and the heat exchange efficiency between the phase change heat storage member 320 and the heat conducting member 330 is not much greater than the heat exchange efficiency between the heat exchanging member 200 and the heat conducting member 330, so that the temperature on the heat conducting member 330 may be accumulated, and the speed of the heat conducting member 330 absorbing the heat of the heat exchanging member 200 is affected, so that the working efficiency of the heat exchanging member 200 is affected.

Therefore, the difference between the first contact area and the second contact area is more obvious, the heat absorption efficiency of the heat storage member 320 to the heat conducting member 330 can be increased, the temperature of the heat conducting member 330 is effectively reduced, and the heat conducting member 330 can absorb the heat on the heat exchanging member 200 more effectively.

In some embodiments of the present utility model, as shown in fig. 2-4, the heat conductive member 330 has a first end surface 331, a second end surface 332, and a side surface 333, the first end surface 331 and the second end surface 332 are disposed on opposite sides of the heat conductive member 330, for example, the first end surface 331 and the second end surface 332 are disposed on opposite ends of the heat conductive member 330 in the length direction of the handle 300, and the side surface 333 is disposed between the first end surface 331 and the second end surface 332, for example, the side surface 333 is disposed between the first end surface 331 and the second end surface 332 in the length direction of the handle 300.

Specifically, the second end surface 332 contacts the phase-change heat storage member 320, the area of the first end surface 331 is smaller than that of the second end surface 332, at this time, the cross-sectional area of the heat conducting member 330 gradually increases from the first end surface 331 to the second end surface 332, the heat conducting member 330 is a cone, for example, a cone, the heat exchanging member 200 and the phase-change heat storage member 320 are located at opposite ends of the heat conducting member 330, the distance between the phase-change heat storage member 320 and the heat exchanging member 200 is far, the phase-change heat storage member 320 is less affected by the heat exchanging member 200, and therefore the phase-change heat storage member 320 mainly exchanges heat with the heat conducting member 330, so as to more effectively control the temperature of the heat conducting member 330 and ensure the holding comfort of the handle 300.

The side 333 contacts with the phase change heat storage member 320, the area of the first end face 331 is smaller than that of the side 333, and the heat exchange between the phase change heat storage member 320 and the heat conducting member 330 is ensured, and meanwhile, the space occupied by the heat exchange member 200, the heat conducting member 330 and the phase change heat storage member 320 in the length direction of the handle 300 is reduced, and the length of the handle 300 is reduced.

Still alternatively, the second end surface 332 and the side surface 333 are connected to the phase change heat storage member 320, and the area of the first end surface 331 is smaller than the sum of the area of the side surface 333 and the area of the second end surface 332, so that the first contact area can be increased to accelerate the heat dissipation effect of the heat conductive member 330.

For example, the plurality of phase change heat storage elements 320 are plural, and the plurality of phase change heat storage elements 320 are in contact with the heat conducting element 330 from at least two directions, as shown in fig. 4, opposite sides of the heat conducting element 330 are in contact with the phase change heat storage elements 320.

In some embodiments of the present utility model, the end of the heat exchanging member 200 contacting the heat managing member 370 has a heating state and a cooling state, and the controller adjusts the temperature of the heat managing member 370 by switching the heat exchanging member 200 between the heating state and the cooling state, or by reducing the power of the heat exchanging member 200, or by switching the heat exchanging member 200 off, such that the temperature variation range of the heat managing member 370 within a single operation cycle of the heat exchanging member 200 is not more than 30 ℃. Wherein the single duty cycle of the heat exchanging member 200 does not exceed 30 minutes, the single duty cycle refers to a length of time from when the heat exchanging member 200 starts to operate (i.e., when the end of the heat exchanging member 200 in contact with the care assembly 100 starts to cool or heat) to when the heat exchanging member 200 stops to operate (i.e., when the end of the heat exchanging member 200 in contact with the care assembly 100 stops to cool or heat).

Typically, the common ambient temperature of the working environment of the skin care device 1 may be 20-30 ℃, and the temperature of the thermal management assembly 370 does not vary by more than 30 ℃, i.e. the temperature of the thermal management assembly 370 reaches at most 50-60 ℃, which is a safer working temperature for the electronic components. And at this time, the temperature of the outer surface of the housing 310 is generally not higher than 45 ℃, so that most human skin can receive a temperature below 45 ℃, and thus scalding hands can be effectively avoided. At the same time the temperature of the whole skin care device 1 during operation varies less widely, is comfortable to hold, and is easier to adhere to complete a full cycle of skin care.

The temperature of the heat management system 370 may be controlled by adjusting the cooling or heating of the heat exchange member 200 and one end of the heat management system 370, or by adjusting the power of the heat exchange member 200, or by turning off the heat exchange member 200.

In some embodiments of the utility model, the temperature of the exterior surface of the housing 310 varies by no more than 15 ℃ over a single duty cycle of the heat exchange member 200. Wherein the single duty cycle of the heat exchange member 200 does not exceed 30 minutes.

Typically, the usual ambient temperature of the working environment of the skin care device 1 may be 20-30 ℃, and the surface temperature of the housing 310 does not vary by more than 15 ℃, i.e. the surface temperature of the housing 310 of the skin care device 1 reaches at most 35-45 ℃, and most human skin can accept a temperature below 45 ℃, so that scalding hands can be effectively avoided. At the same time the temperature of the whole skin care device 1 during operation varies less widely, is comfortable to hold, and is easier to adhere to complete a full cycle of skin care.

In some embodiments of the utility model, the temperature of the exterior surface of the housing 310 varies by no more than 5 ℃ over a single duty cycle of the heat exchange member. Wherein the single duty cycle of the heat exchange member 200 does not exceed 30 minutes.

In this way, the temperature of the outer surface of the housing 310 varies less with respect to the ambient temperature, and the temperature fluctuations felt by the hand during operation of the user using the skin care device 1 are smaller, the grip experience being further optimized.

In some embodiments of the present utility model, as shown in fig. 7, the thermal management assembly 370 includes a heat conductive member 330 and a phase change heat storage member 320. The heat conductive member 330 is in contact with the heat exchanging member 200, and the phase change heat storage member 320 is in contact with the heat conductive member 330.

The skin care apparatus 1 has a cold compress mode in which one end of the heat exchanging member 200 contacting the heat conducting member 330 is in a heating state, and when the temperature of the heat conducting member 330 exceeds the phase change temperature of the phase change heat storing member 320, the phase change heat storing member 320 absorbs heat of the heat conducting member 330; the skin care device 1 has a heat application mode in which one end of the heat exchanging member 200 contacting the heat conducting member 330 is in a refrigerating state, and the phase change heat storage member 320 transfers heat to the heat conducting member 330.

For example, the heat conducting member 330 is made of a metal material, such as aluminum, or the heat conducting member 330 is made of a heat conducting plastic.

When the skin care device 1 is in the cold compress mode, one end of the heat exchange member 200, which is in contact with the care assembly 100, is in a refrigerating state, the care assembly 100 cools the skin, one end of the heat exchange member 200, which is in contact with the heat conduction member 330, is in a heating state, the heat conduction member 330 exchanges heat with the heat exchange member 200, the temperature of one end of the heat exchange member 200, which is in contact with the heat conduction member 330, is reduced, the heat exchange member 200 can continuously and reliably work, the temperature of the heat conduction member 330 rises, when the temperature of the heat conduction member 330 exceeds the phase transition temperature of the phase transition heat storage member 320, the phase transition heat storage member 320 starts to absorb heat, the temperature of the phase transition heat storage member 320 hardly changes in the phase transition process, and therefore, the phase transition heat storage member 320 has strong heat absorption and heat storage capacity, the temperature inside the handle 300 cannot be excessively increased, and the holding experience of a user is good.

When the skin care device 1 is in the hot compress mode, one end of the heat exchange member 200, which is in contact with the care assembly 100, is in a heating state, the care assembly 100 heats the skin, one end of the heat exchange member 200, which is in contact with the heat conducting member 330, is in a refrigerating state, the heat conducting member 330 exchanges heat with the heat exchange member 200, the temperature of one end of the heat exchange member 200, which is in contact with the heat conducting member 330, is increased, the heat exchange member 200 is ensured to continuously and reliably work, the temperature of the heat conducting member 330 is reduced, the phase change heat storage member 320 can transfer heat to the heat conducting member 330, and the phase change heat storage member 320 can effectively inhibit the temperature reduction of the heat conducting member 330 due to higher heat storage capacity of the phase change heat storage member 320, so that the excessive temperature reduction in the handle 300 can be avoided, and the holding experience of a user is good.

In some embodiments of the present utility model, as shown in fig. 2, 5, 6 and 8, the skin care device 1 further comprises an insulation 340, the insulation 340 being located between the outer surface of the thermal management assembly 370 and the inner surface of the housing 310 for blocking the thermal management assembly 370 from transferring heat to the outer surface of the housing 310.

For example, the thermal insulation 340 is thermal insulation cotton. The heat insulation piece 340 is connected with the shell 310 through heat insulation glue, and the heat insulation glue is arranged, so that the connection strength between the heat insulation piece 340 and the shell 310 is guaranteed, the separation between the heat insulation piece 340 and the shell 310 is avoided, the heat exchange efficiency between the heat insulation piece 340 and the shell 310 is reduced, and the temperature change of the shell 310 is further avoided.

Through setting up thermal-insulated piece 340, can separate thermal management subassembly 370 to shell 310's surface transmission heat, avoid shell 310's surface temperature to receive thermal management subassembly 370's temperature influence to be favorable to guaranteeing that shell 310's surface temperature keeps in a scope that is suitable for the people to hold, optimize user's use experience.

In some embodiments of the present utility model, as shown in fig. 2, 5, 6 and 8, the skin care device 1 further comprises a heat absorbing member 350, the heat absorbing member 350 being located between the outer surface of the heat insulating member 340 and the inner surface of the housing 310 for absorbing heat transferred from the heat insulating member 340 to the outer surface of the housing 310.

By providing the heat absorbing member 350, the heat of the heat insulating member 340 can be absorbed to reduce the heat transferred from the heat insulating member 340 to the housing 310, and the influence of the temperature of the heat insulating member 340 on the temperature of the housing 310 can be reduced to maintain the temperature of the housing 310 in a state suitable for being held by a human hand. When the temperature inside the handle 300 is lowered, the heat absorbing member 350 gradually releases the heat absorbed by the heat absorbing member, and the heat absorbing member 350 has a good heat absorbing capability next time.

For example, the heat absorbing member 350 and the heat insulating member 340 are connected by heat conducting glue, the heat conducting glue fills the gap between the heat absorbing member 350 and the heat insulating member 340, the heat conducting coefficient of the heat conducting glue is 3W/mK-15W/mK, and the heat exchanging efficiency between the heat absorbing member 350 and the heat insulating member 340 is ensured.

In addition, the heat absorbing member 350 may be made of a phase-change material, when the temperature of the heat absorbing member 340 exceeds the phase-change temperature of the heat absorbing member 350, the heat absorbing member 350 absorbs the heat of the heat absorbing member 340 by itself phase-changing, the phase-change material is unchanged in temperature during the phase-change process, and after all the phase-change materials absorbing a large amount of heat to the heat absorbing member 350 complete the phase-change process, the temperature of the heat absorbing member 350 rises and changes again, so that it is known that the inside of the handle 300 always maintains a relatively stable temperature during the phase-change process, and the comfort of the user holding is high.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present utility model, and specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (18)

1. A skin care device, comprising:

a care assembly;

the heat exchange piece is used for generating temperature change when being electrified, and the heat exchange piece and the nursing assembly form heat transfer;

the handle comprises a shell and a thermal management assembly, the shell is connected with the nursing assembly, the thermal management assembly is arranged in the shell and is in contact with the heat exchange piece, and the thermal management assembly performs heat dissipation or cooling on the heat exchange piece through heat exchange with the heat exchange piece;

temperature detecting means for detecting a temperature of the thermal management assembly; and

and the controller is electrically connected with the heat exchange piece and the temperature detection device respectively, and controls the working state of the heat exchange piece according to the temperature detected by the temperature detection device.

2. The skin care device of claim 1, wherein the thermal management assembly comprises:

And the heat conduction piece is contacted with the heat exchange piece, and the temperature detection device is used for detecting the temperature of the heat conduction piece.

3. The skin care device of claim 2, wherein the heat conducting member has a first end face, a second end face, and side faces, the first end face and the second end face being provided on opposite sides of the heat conducting member, the side faces being located between the first end face and the second end face;

wherein the first end face is in contact with the heat exchange member, and at least one of the second end face and the side face is in contact with the temperature detection device.

4. The skin care apparatus as recited in claim 2, wherein said temperature detecting means is provided at an outer surface of said heat conductive member.

5. The skin care apparatus according to claim 2, wherein the plurality of temperature detecting means is plural, and at least two of the plurality of temperature detecting means are provided at different positions of the heat conductive member.

6. The skin care device of claim 5, wherein a plurality of said temperature detecting means comprises:

the first temperature detection device corresponds to a first temperature threshold, and a first interval is reserved between the first temperature detection device and the heat exchange piece;

The second temperature detection device corresponds to a second temperature threshold, and a second interval is reserved between the second temperature detection device and the heat exchange piece;

wherein the first temperature threshold is greater than the second temperature threshold, and the first pitch is less than the second pitch.

7. The skin care apparatus according to claim 2, wherein the heat conductive member is configured in a sheet-like or strip-like structure, and the temperature detecting means is located on one side in a thickness direction of the heat conductive member.

8. The skin care device of claim 2, wherein the heat conducting member is provided with a mounting position, and the temperature detecting means is provided at the mounting position and is in direct contact with the heat conducting member.

9. The skin care device of claim 2, wherein the temperature detecting means and the heat conducting member are connected by a heat conducting adhesive, and a heat conducting coefficient of the heat conducting adhesive is not less than 0.3W/mk and not more than 5W/mk.

10. The skin care device of claim 2, wherein the thermal management assembly comprises:

the phase-change heat storage part is contacted with the heat conduction part, and when the temperature of the heat conduction part exceeds the phase-change temperature of the phase-change heat storage part, the phase-change heat storage part is subjected to phase change to absorb the heat of the heat conduction part;

The heat conduction coefficient of the heat conduction piece is larger than that of the phase change heat storage piece.

11. The skin care device of claim 1, wherein the thermal management assembly comprises:

a heat conductive member in contact with the heat exchange member;

the phase-change heat storage part is contacted with the heat conduction part, and when the temperature of the heat conduction part exceeds the phase-change temperature of the phase-change heat storage part, the phase-change heat storage part is subjected to phase change to absorb the heat of the heat conduction part;

the heat exchange device comprises a heat conducting piece, a phase change heat storage piece and a heat exchange piece, wherein a first contact area is arranged between the heat conducting piece and the phase change heat storage piece, a second contact area is arranged between the heat exchange piece and the heat conducting piece, and the first contact area is larger than the second contact area.

12. The skin care device of claim 11, wherein a ratio of the first contact area to the second contact area is not less than 1.5.

13. The skin care device of claim 11, wherein the thermally conductive member has a first end face, a second end face, and side faces, the first end face and the second end face being disposed on opposite sides of the thermally conductive member, the side faces being disposed between the first end face and the second end face;

The second end face is in contact with the phase change heat storage piece, and the area of the first end face is smaller than that of the second end face; and/or

The side surface is in contact with the phase change heat storage piece, and the area of the first end surface is smaller than that of the side surface; and/or

The side surface and the second end surface are both in contact with the phase-change heat storage piece, and the area of the first end surface is smaller than the sum of the area of the side surface and the area of the second end surface.

14. The skin care device of claim 1, wherein an end of the heat exchanging member contacting the heat managing member has a heating state and a cooling state, and the controller adjusts the temperature of the heat managing member by controlling an operation state of the heat exchanging member such that a temperature variation range of the heat managing member does not exceed 30 ℃.

15. The skin care device of claim 1, wherein the temperature of the outer surface of the housing varies by no more than 15 ℃ over a single duty cycle of the heat exchange member.

16. The skin care device of claim 1, wherein the temperature of the outer surface of the housing varies by no more than 5 ℃ over a single duty cycle of the heat exchange member.

17. The skin care device of any one of claims 1-16, further comprising:

and the heat insulation piece is positioned between the outer surface of the thermal management assembly and the inner surface of the shell and used for blocking the thermal management assembly from transferring heat to the outer surface of the shell.

18. The skin care device of claim 17, further comprising:

and the heat absorbing member is positioned between the outer surface of the heat insulating member and the inner surface of the shell and is used for absorbing heat transferred from the heat insulating member to the outer surface of the shell.