CN215307277U

CN215307277U - Graphite alkene hand warmer

Info

Publication number: CN215307277U
Application number: CN202120586238.2U
Authority: CN
Inventors: 杨石山; 潘卓成; 潘智军; 谭化兵
Original assignee: Anhui Aerospace and PMA Health Technology Co Ltd
Current assignee: Anhui Aerospace and PMA Health Technology Co Ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-12-28
Anticipated expiration: 2031-03-23

Abstract

The utility model provides a graphene hand warmer which comprises a shell, wherein a containing cavity is formed in the shell, two groups of graphene heating sheets are arranged in the containing cavity, the shell comprises a first hand warming shell and a second hand warming shell which are mutually assembled, and the two groups of graphene heating sheets are respectively laid on the inner side surfaces of the first hand warming shell and the second hand warming shell in a one-to-one correspondence mode. On one hand, the graphene heating sheets are adopted to provide heat for the hand warmer, the hand warmer has the advantages of being high in electric conduction, high in heat conduction and good in heating uniformity, the heating efficiency can be remarkably improved, the electric energy loss can be reduced, effective heating can be achieved only through a low-voltage power supply, the safety is high, and on the other hand, the graphene heating sheets are respectively and correspondingly arranged on the first hand warmer shell and the second hand warmer shell, so that the temperature uniformity of the two opposite sides of the hand warmer can be guaranteed, and the infrared physiotherapy effect is achieved.

Description

Graphite alkene hand warmer

Technical Field

The utility model belongs to the technical field of health physiotherapy articles, and particularly relates to a graphene hand warmer.

Background

In winter, the temperature is generally low, and people can feel cold hands and even have frostbite when going out. The hand warmer is a self-heating product manufactured by a physical or chemical principle method, has the effects of preventing freezing, dispelling cold and relieving pains on hand joints in cold winter, has the characteristics of small size, portability, lasting and stable heating and the like, and becomes a modern article for hand warming, cold dispelling and hot compress physiotherapy at present.

The commonly used hand warmers in the market at present can be divided into three categories: one type is injected with hot water, and the hand warmer needs frequent hot water addition, is troublesome, and is not easy to control the water temperature and easy to scald; the second type is that electric heating equipment is used for heating water and then keeping warm, and the type is very easy to explode and has potential safety hazards; the heating wire is adopted for heating, the energy consumption of the heating wire is large, the electric quantity loss is large, and effective heating cannot be carried out through low-power supply.

Graphene is a novel material with a sheet structure formed by a single layer of carbon atoms, and in recent years, graphene is praised as a strategic emerging material which subverts the future due to extremely high electrical conductivity and high thermal conductivity (up to 1500W/m.K or more). Meanwhile, the graphene has extremely high far infrared radiation conversion efficiency, can generate far infrared life light waves with the size of 6-14 mu m close to that of a human body under the condition of electrification, and can penetrate through the skin of the human body to deeply penetrate into the body to activate cell movement, thereby achieving the effect of personal physical therapy.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to provide a graphene hand warmer, which can overcome the defects that the hand warmer in the prior art is uneven in heating temperature, low in safety and incapable of having a physiotherapy function.

In order to solve the problems, the utility model provides a graphene hand warmer which comprises a shell, wherein a containing cavity is formed in the shell, two groups of graphene heating sheets are arranged in the containing cavity, the shell comprises a first hand warming shell and a second hand warming shell which are mutually assembled, and the two groups of graphene heating sheets are respectively laid on the inner side surfaces of the first hand warming shell and the second hand warming shell in a one-to-one correspondence mode.

Preferably, a heat conduction waterproof layer is arranged between the inner side surface of the first hand warming shell and the corresponding graphene heating sheet; and/or a heat conduction waterproof layer is arranged between the inner side surface of the second hand warming shell and the corresponding graphene heating sheet; and/or the two groups of graphene heating sheets are electrically connected in parallel.

Preferably, the heat-conducting waterproof layer is adhered to the inner side surface of the first hand warming shell and/or the second hand warming shell through heat-conducting glue; and/or the graphene heating sheet is adhered to the inner side surface of the heat-conducting waterproof layer through heat-conducting glue.

Preferably, an interval is arranged between two opposite sides of the two graphene heating sheets, a main control board is arranged in the interval, and the main control board can control whether the graphene heating sheets operate or not.

Preferably, a heat insulation reflecting layer is arranged between the main control board and the graphene heating sheet; and/or the main control panel is provided with a USB interface, a micro USB interface and a power switch button.

Preferably, the main control board is fixedly connected with the housing through a stud.

Preferably, hold the intracavity and be equipped with power supply battery, power supply battery adopt the foam adhesive to paste in on the main control board, in order to right the main control board and the power supply of graphite alkene piece that generates heat.

Preferably, the power supply battery is a graphene battery.

Preferably, the graphene heating sheet sequentially comprises a polyimide film, a copper foil circuit, a graphene heating film and a polyimide film along the thickness direction of the graphene heating sheet, wherein the copper foil circuit is electrically connected with the power supply battery.

Preferably, the shell is made of a heat conduction material with a heat conduction coefficient larger than 4; and/or, the lateral surface of shell has anti-skidding structure on, anti-skidding structure includes one of dull polish, anti-skidding line.

According to the graphene hand warmer provided by the utility model, on one hand, the graphene heating sheets are adopted to provide heat for the hand warmer, the hand warmer has the characteristics of high electric conductivity, high heat conduction and good heating uniformity, the heating efficiency can be obviously improved, the electric energy loss can be reduced, the hand warmer can effectively heat only by a low-voltage power supply, the safety is higher, on the other hand, the graphene heating sheets are respectively and correspondingly arranged in a group corresponding to the first hand warmer shell and the second hand warmer shell, the temperature uniformity of two opposite sides of the hand warmer can be ensured, and the hand warmer has the infrared physiotherapy effect.

Drawings

Fig. 1 is a schematic internal structure diagram of a graphene hand warmer according to an embodiment of the present invention;

fig. 2 is a front view of the graphene hand warmer in fig. 1;

fig. 3 is a top view of the graphene hand warmer according to the embodiment of the utility model.

The reference numerals are represented as:

1. a housing; 11. an accommodating chamber; 12. a first hand warming housing; 13. a second hand warming housing; 2. a graphene heating sheet; 3. a heat-conducting waterproof layer; 4. a main control panel; 41. a heat-insulating reflective layer; 42. a USB interface; 43. a micro USB interface; 44. a power switch button; 46. a stud; 5. and a power supply battery.

Detailed Description

With reference to fig. 1 to 3, according to an embodiment of the present invention, a graphene hand warmer is provided, and includes a housing 1, wherein a receiving cavity 11 is formed in the housing 1, two sets of graphene heating sheets 2 are disposed in the receiving cavity 11, the housing 1 includes a first hand warming housing 12 and a second hand warming housing 13 that are assembled with each other, and the two sets of graphene heating sheets 2 are respectively laid on inner side surfaces of the first hand warming housing 12 and the second hand warming housing 13 in a one-to-one correspondence manner. In the technical scheme, on one hand, the graphene heating sheets 2 provide heat for the hand warmer, so that the hand warmer has the advantages of being high in electric conduction, high in heat conduction and good in heating uniformity, the heating efficiency can be remarkably improved, the electric energy loss can be reduced, effective heating can be achieved only through a low-voltage power supply, the safety is higher, and on the other hand, the graphene heating sheets 2 correspondingly arranged corresponding to the first hand warmer shell 12 and the second hand warmer shell 13 respectively can guarantee the temperature uniformity of the two opposite sides of the hand warmer and have the infrared physiotherapy effect. The first hand warming housing 12 and the second hand warming housing 13 may be engaged with each other by, for example, a snap-fit manner.

Preferably, a heat-conducting waterproof layer 3 made of a heat-conducting waterproof material is arranged between the inner side surface of the first hand warming shell 12 and the corresponding graphene heating sheet 2; and/or, the medial surface of second warm hand casing 13 and that corresponds with it be equipped with heat conduction waterproof layer 3 between the piece 2 that generates heat of graphite alkene, can effectively prevent because the maloperation leads to inside water intaking, and then the inside electronic components of protective housing 1.

In some embodiments, the two graphene heating sheets 2 are electrically connected in parallel, so as to prevent the whole hand warmer from being scrapped after any fault occurs in the series connection mode.

The heat-conducting waterproof layer 3 is adhered to the inner side surface of the first hand warming shell 12 and/or the second hand warming shell 13 through heat-conducting glue; and/or, the graphene heating sheet 2 is adhered to the inner side surface of the heat-conducting waterproof layer 3 through heat-conducting glue, so that the heat-conducting efficiency can be ensured while reliable connection is realized.

In some embodiments, a space is formed between two opposite sides of the two graphene heating sheets 2, a main control board 4 (specifically, a PCB) is disposed in the space, and the main control board 4 can control whether the graphene heating sheets 2 operate or not, that is, the main control board 4 is disposed between the two graphene heating sheets 2 instead of between the graphene heating sheets 2 and the housing 1, so as to ensure uniformity of the temperature of the heat dissipation surface of the housing 1. Further, the main control panel 4 with be equipped with heat insulation reflection layer 41 between the graphite alkene piece 2 that generates heat, heat insulation reflection layer 41 for example can be the aluminium foil transmission membrane, can with the heat furthest's that graphite alkene piece 2 produced reflection extremely shell 1 one side improves the utilization ratio of its heat electric energy, still effectively prevents the temperature right main control panel 4's adverse effect.

The main control panel 4 is provided with a USB interface 42, a micro USB interface 43 and a power switch button 44, preferably, the power switch button is provided with an indicator light, it can be understood that a corresponding groove structure is constructed at a corresponding position of the shell 1, the USB interface 42 can be connected to a USB data line, and the hand warmer can be used as a mobile power supply; the micro USB interface 43 can be connected with a USB data line and is connected with an external power supply to charge the hand warmer; the power switch button 44 controls whether the hand warmer works or not, which can be configured to press the power switch button 44 for a long time for several seconds, the hand warmer starts working, the indicator lamp on the hand warmer lights up, the power switch button 44 is pressed for a long time again for several seconds, the hand warmer stops working, and the indicator lamp goes out.

The main control panel 4 is fixedly connected with the shell 1 through a stud 46, specifically, four corners of the main control panel 4 are provided with corresponding through holes, the inner side surface of the shell 1 is provided with corresponding screw holes, and the stud 46 is screwed into the screw holes to effectively fix the main control panel 4.

Hold and be equipped with power supply battery 5 in the chamber 11, power supply battery 5 adopt the foam adhesive to paste in on the main control board 4, in order to right main control board 4 and the power supply of graphite alkene piece 2 that generates heat. In some embodiments, the power supply battery 5 is a graphene battery, and a rechargeable battery (graphene battery) manufactured by using the characteristics of high conductivity of graphene and the characteristic that a large amount of lithium ions rapidly shuttle between the surface of graphene and an electrode has the advantages of large electricity storage capacity, short charging time, long service life, light self weight and the like.

In some embodiments, the graphene heating sheet 2 sequentially includes a polyimide film, a copper foil circuit, a graphene heating film, and a polyimide film along a thickness direction thereof, wherein the copper foil circuit is electrically connected to the power supply battery 5, specifically, a copper foil circuit diagram is designed according to product requirement parameters, the graphene heating sheet 2 is manufactured by processes of exposure, development, etching, and the like, a suitable graphene heating film is selected, and the copper foil circuit, the graphene heating film, and the polyimide film are manufactured into the graphene heating sheet 2 by processes of covering, hot pressing, cutting, and the like; the overall dimension of the graphene heating sheet 2 is slightly smaller than that of the shell 1, so that the heating area is maximized, and the temperature of the graphene heating sheet 2 is 40-45 ℃.

In some embodiments, the housing 1 is made of a heat conducting material with a heat conductivity coefficient greater than 4, and can efficiently conduct internal heat to the outer side surface; and/or, the outer side surface of the shell 1 is provided with an anti-slip structure, and the anti-slip structure comprises one of frosted sand and anti-slip lines.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The graphene hand warmer is characterized by comprising a shell (1), wherein a containing cavity (11) is formed in the shell (1), two groups of graphene heating sheets (2) are arranged in the containing cavity (11), the shell (1) comprises a first hand warming shell (12) and a second hand warming shell (13) which are assembled with each other, and the two groups of graphene heating sheets (2) are respectively laid on the inner side surfaces of the first hand warming shell (12) and the second hand warming shell (13) in a one-to-one correspondence manner; and a heat-conducting waterproof layer (3) is arranged between the inner side surface of the first hand warming shell (12) and the graphene heating sheet (2) corresponding to the inner side surface.

2. The graphene hand warmer according to claim 1, wherein a heat-conducting waterproof layer (3) is arranged between the inner side surface of the second hand warming shell (13) and the corresponding graphene heating sheet (2); and/or the two groups of graphene heating sheets (2) are electrically connected in parallel.

3. The graphene hand warmer according to claim 2, wherein the heat-conducting waterproof layer (3) is adhered to the inner side surface of the first hand warming shell (12) and/or the second hand warming shell (13) through a heat-conducting glue; and/or the graphene heating sheet (2) is adhered to the inner side surface of the heat-conducting waterproof layer (3) through heat-conducting glue.

4. The graphene hand warmer according to claim 2, wherein a space is formed between two opposite sides of the two graphene heating sheets (2), a main control board (4) is arranged in the space, and the main control board (4) can control whether the graphene heating sheets (2) run or not.

5. The graphene hand warmer according to claim 4, wherein a heat insulation reflection layer (41) is arranged between the main control board (4) and the graphene heating sheet (2); and/or the main control panel (4) is provided with a USB interface (42), a micro USB interface (43) and a power switch button (44).

6. The graphene hand warmer according to claim 4, wherein the main control board (4) is fixedly connected with the housing (1) through a stud (46).

7. The graphene hand warmer according to claim 4, wherein a power supply battery (5) is arranged in the accommodating cavity (11), and the power supply battery (5) is adhered to the main control board (4) by foam adhesive to supply power to the main control board (4) and the graphene heating sheet (2).

8. The graphene hand warmer according to claim 7, wherein the power supply battery (5) is a graphene battery.

9. The graphene hand warmer according to claim 7, wherein the graphene heating sheet (2) sequentially comprises a polyimide film, a copper foil circuit, a graphene heating film and a polyimide film along a thickness direction thereof, wherein the copper foil circuit is electrically connected with the power supply battery (5).

10. The graphene hand warmer according to claim 1, wherein the housing (1) is made of a heat conducting material with a heat conductivity coefficient greater than 4; and/or the outer side surface of the shell (1) is provided with an anti-slip structure, and the anti-slip structure comprises one of frosted sand and anti-slip lines.