Temperature-sensing color-changing hand warmer

Abstract

The utility model discloses a thermochromic hand warmer, which relates to the field of hand warmers and comprises a hand warmer body capable of heating; content is arranged on the base layer, and the content on the base layer is one or more of patterns, characters, colors and digital images; the heat discoloration layer is arranged on the base layer, and the heat discoloration layer is used for covering the content on the base layer; in the initial state, the color of the thermochromic layer can shield the content on the base layer, when the hand warmer body emits heat, the heat of the hand warmer body is transmitted to the thermochromic layer, the thermochromic layer becomes transparent or semitransparent, and the content on the base layer can be displayed through the thermochromic layer. The temperature-sensing color-changing hand warmer can present hidden content after heating, so that the functions of the temperature-sensing color-changing hand warmer are more diversified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hand warmer, concretely relates to a temperature sensing color-changing hand warmer. BACKGROUND

[0002] In cold weather, people will use hand warmer to keep warm, hand warmer generates heat through the battery to the heating sheet, and the heating sheet generates heat and then transfers the heat to the user's hand through the surface of the hand warmer, thereby playing a warming role. Hand warmer is widely used because of its small size and portability. However, the existing hand warmer only has the function of heating, and is single in function, lacks interest, playability and topic, and the experience of use needs to be improved. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a temperature sensing color-changing hand warmer, which can present hidden content after heating, making the function of the temperature sensing color-changing hand warmer more diversified.

[0004] The utility model adopts the following technical scheme to realize:

[0005] A temperature sensing color-changing hand warmer, comprising: a hand warmer body capable of generating heat; a base layer having content provided thereon, the content on the base layer being one or more of a pattern, a character, a color, and a digital image; a temperature sensing color-changing layer provided on the base layer, the temperature sensing color-changing layer being used to cover the content on the base layer; in an initial state, the color of the temperature sensing color-changing layer can obscure the content on the base layer, when the hand warmer body generates heat, the heat of the hand warmer body is transferred to the temperature sensing color-changing layer, the temperature sensing color-changing layer becomes transparent or translucent, and the content on the base layer can be displayed through the temperature sensing color-changing layer, when the hand warmer body stops generating heat, the temperature sensing color-changing layer gradually cools down to restore the original color to obscure the content on the base layer.

[0006] In one embodiment, the base layer is one of a greeting card, a postcard, a sticker, and a photo.

[0007] In one embodiment, the hand warmer body is provided with a sticking surface, the base layer is stuck on the sticking surface, and the sticking surface is a plane or a plane close to a plane.

[0008] In one embodiment, the hand warmer body comprises a heating surface, the heating surface is provided on the front surface of the hand warmer body, and at least part of the heating surface constitutes the sticking surface.

[0009] In one embodiment, the heating surface is the sticking surface, and the shape and size of the base layer are the same as those of the heating surface.

[0010] In one embodiment, the hand warmer body comprises a shell, a heating panel, a heating sheet, a battery and a circuit board, the shell is provided with a receiving groove, the shell is internally provided with a receiving space, the receiving groove is provided with a through hole, the receiving groove communicates with the receiving space through the through hole, the battery and the circuit board are arranged in the receiving space, the heating sheet is arranged in the receiving groove, the heating sheet is connected with the circuit board through a conductive part, the conductive part penetrates through the through hole, the battery is connected with the circuit board, and the heating panel is arranged on the receiving groove and the shape of the heating panel is matched with the receiving groove.

[0011] In one embodiment, the heating sheet is pasted on the surface of the heating panel close to the heating sheet.

[0012] In one embodiment, the color of the heating surface is different from the color of other parts of the surface of the hand warmer body, and the color is different in kind or in depth.

[0013] In one embodiment, the heating surface is a smooth surface.

[0014] In one embodiment, the thickness of the area of the heating panel opposite to the heating sheet is the same.

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that the temperature-sensitive color-changing hand warmer of the utility model is provided with a base layer and a temperature-sensitive color-changing layer, the base layer is provided with user's required content, the color of the temperature-sensitive color-changing layer in the initial state can shield the content on the base layer, when the hand warmer is started, the hand warmer body generates heat, the base layer and the temperature-sensitive color-changing layer are close to or pasted to the hand warmer body, the heat of the hand warmer body is transmitted to the temperature-sensitive color-changing layer, the temperature-sensitive color-changing layer becomes transparent or translucent, the content on the base layer can be displayed through the temperature-sensitive color-changing layer, when the hand warmer body stops heating, the temperature-sensitive color-changing layer gradually cools down to restore the original color to shield the content on the base layer, the temperature-sensitive color-changing hand warmer of the utility model has interestingness, playability and topic, the user can prepare the required content in advance, give the temperature-sensitive color-changing hand warmer of the utility model to others, improve the emotion of both parties and can transmit information through the content, provide additional emotional value, thereby improving the experience of the user. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the temperature-sensitive color-changing hand warmer in one embodiment of the utility model;

[0017] Figure 2 It is a schematic view of the temperature-sensitive color-changing layer arranged on the base layer in one embodiment of the utility model;

[0018] Figure 3 It is the schematic view of the base layer pasted to the hand warmer body in an embodiment of the present application;

[0019] Figure 4 It is the schematic view of the temperature-sensitive color-changing layer after being heated in the temperature-sensitive color-changing hand warmer in an embodiment of the present application;

[0020] Figure 5 It is the partial structure schematic view of the hand warmer body in an embodiment of the present application;

[0021] Figure 6 It is the cross-section structure schematic view of the hand warmer body in an embodiment of the present application.

[0022] Reference signs: 1, hand warmer body; 2, base layer; 3, temperature-sensitive color-changing layer; 4, pasting surface; 5, heating surface; 6, front surface of the hand warmer body; 7, shell; 8, heating panel; 9, heating sheet; 10, battery; 11, circuit board; 12, accommodating groove; 13, accommodating space; 14, through hole; 15, conductive part. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0024] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application.

[0025] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0027] Referring to Figures 1 to 4 In the preferred embodiment of the temperature-sensitive color-changing hand warmer of the utility model, the hand warmer body 1 can generate heat; the base layer 2 is provided with content; the content on the base layer 2 is one or more of a pattern, a character, a color, and a digital image; the temperature-sensitive color-changing layer 3 is arranged on the base layer 2 and is used for covering the content on the base layer 2; in the initial state, the color of the temperature-sensitive color-changing layer 3 can shield the content on the base layer 2; when the hand warmer body 1 generates heat, the heat of the hand warmer body 1 is transmitted to the temperature-sensitive color-changing layer 3, the temperature-sensitive color-changing layer 3 becomes transparent or translucent, and the content on the base layer 2 can be displayed through the temperature-sensitive color-changing layer 3; when the hand warmer body 1 stops generating heat, the temperature-sensitive color-changing layer 3 gradually cools down to restore the original color to shield the content on the base layer 2.

[0028] In the utility model, the initial color and the color after being heated of the temperature-sensitive color-changing layer 3 are not limited, and a suitable temperature-sensitive color-changing layer 3 can be selected according to actual needs.

[0029] In one embodiment, in the initial state, the temperature-sensitive color-changing layer 3 is black, and after the temperature-sensitive color-changing layer 3 is heated by the heat of the hand warmer body 1, the temperature-sensitive color-changing layer 3 becomes transparent or translucent, so that the content on the base layer 2 is presented, and thus the temperature-sensitive color-changing hand warmer of the utility model can achieve the best implementation effect. In other embodiments, other suitable temperature-sensitive color-changing layers 3 can be selected.

[0030] The temperature-sensitive color-changing hand warmer of the utility model is provided with the base layer 2 and the temperature-sensitive color-changing layer 3, the base layer 2 is provided with content required by a user, the color of the temperature-sensitive color-changing layer 3 in the initial state can shield the content on the base layer 2, when the hand warmer is turned on, the hand warmer body 1 generates heat, the base layer 2 and the temperature-sensitive color-changing layer 3 are close to or pasted to the hand warmer body 1, the heat of the hand warmer body 1 is transmitted to the temperature-sensitive color-changing layer 3, the temperature-sensitive color-changing layer 3 becomes transparent or translucent, and the content on the base layer 2 can be displayed through the temperature-sensitive color-changing layer 3; when the hand warmer body 1 stops generating heat, the temperature-sensitive color-changing layer 3 gradually cools down to restore the original color to shield the content on the base layer 2, the temperature-sensitive color-changing hand warmer of the utility model has interestingness, playability, and topic, a user can prepare the desired content in advance, give the temperature-sensitive color-changing hand warmer of the utility model to other people, improve the emotion of both parties and can transmit information through the content, provide additional emotional value, and thus improve the experience of the user.

[0031] As the preferred embodiment of the temperature-sensitive color-changing hand warmer of the utility model, the following additional technical features can also be possessed:

[0032] In an embodiment, the base layer 2 is one of a card, a postcard, a sticker, and a photo, and thus can be set according to actual needs to meet the needs of users. In other embodiments, the base layer 2 can be other suitable objects other than a card, a postcard, a sticker, and a photo, and is not limited thereto.

[0033] Referring to Figure 1 In an embodiment, the hand warmer body 1 is provided with a sticking surface 4, and the base layer 2 is stuck to the sticking surface 4. The sticking surface 4 is planar or nearly planar. In this way, the sticking surface 4 is set to be planar or nearly planar, which is more conducive to the adhesion of the base layer 2 and improves the firmness of the base layer 2 to the hand warmer body 1. In addition, the sticking surface 4 is set to be planar or nearly planar, which is more conducive to presenting the content on the base layer 2. In other embodiments, the sticking surface 4 can have other suitable shapes.

[0034] In an embodiment, the hand warmer body 1 includes a heating surface 5, and the heating surface 5 is arranged on the front surface 6 of the hand warmer body. At least part of the heating surface 5 constitutes the sticking surface 4. In this way, by sticking the base layer 2 to at least part of the heating surface 5, the heat of the heating surface 5 can be quickly transferred to the thermochromic layer 3, so that the content on the base layer 2 is presented more quickly, improving the experience of users when using.

[0035] Referring to Figure 1 and Figure 3 In an embodiment, the heating surface 5 is the sticking surface 4, and the shape and size of the base layer 2 are the same as those of the heating surface 5. In this way, on the one hand, the base layer 2 is attached to the entire heating surface 5, which is more conducive to the heat transfer of the heating surface 5 to the thermochromic layer 3, so that the content on the base layer 2 is presented more quickly and more efficiently. On the other hand, the heating of the thermochromic layer 3 is more uniform, and the heating changes of each part of the thermochromic layer 3 are more synchronized. In addition, the shape and size of the base layer 2 are the same as those of the heating surface 5, which can make the base layer 2 just cover the surface of the heating surface 5, so that the thermochromic hand warmer of the present application is more beautiful, to meet the needs of users more. In other embodiments, the shape and size of the base layer 2 can be different from those of the heating surface 5.

[0036] Referring to Figure 5 and Figure 6In an embodiment, the hand warmer body 1 comprises a shell 7, a heating panel 8, a heating sheet 9, a battery 10 and a circuit board 11, the shell 7 is provided with a receiving groove 12, the shell 7 is internally provided with a receiving space 13, the receiving groove 12 is provided with a through hole 14, the receiving groove 12 communicates with the receiving space 13 through the through hole 14, the battery 10 and the circuit board 11 are arranged in the receiving space 13, the heating sheet 9 is arranged in the receiving groove 12, the heating sheet 9 is connected with the circuit board 11 through a conductive part 15, the conductive part 15 penetrates through the through hole 14, the battery 10 is connected with the circuit board 11, the heating panel 8 is arranged on the receiving groove 12 and the shape of the heating panel 8 is matched with the receiving groove 12. The above structure makes the distribution of each component of the hand warmer body 1 more reasonable, on the one hand, it is more conducive to the user to use the warming function of the hand warmer itself, on the other hand, it is more conducive to the heat of the hand warmer body 1 to be transferred outward, so that the heat is more efficiently transferred to the temperature-sensitive color-changing layer 3 to realize the presentation function of the temperature-sensitive color-changing hand warmer. In other embodiments, the hand warmer body 1 can adopt other suitable structures.

[0037] In an embodiment, the heating sheet 9 is pasted on the surface of the heating panel 8 close to the heating sheet 9. In this way, the heat emitted by the heating sheet 9 can be directly transferred to the heating panel 8, and the heating panel 8 can timely transfer the heat to the temperature-sensitive color-changing layer 3, thereby improving the efficiency of heat transfer. In addition, the heating sheet 9 can be better fixed to prevent loosening of the heating sheet 9 in the receiving groove 12. In other embodiments, the heating sheet 9 can not be pasted on the surface of the heating panel 8 close to the heating sheet 9.

[0038] In an embodiment, the color of the heating surface 5 is different from the color of other parts of the surface of the hand warmer body 1. The color difference refers to the difference in color type or the difference in color depth. In this way, when the user needs to paste the base layer 2 to the heating surface 5, it is easier to determine the edge of the heating surface 5 and the edge of other parts of the surface of the hand warmer body 1, thereby making it easier to paste the base layer 2 to the heating surface 5 in a neat manner and reducing the occurrence of the base layer 2 being pasted askew. In other embodiments, the color of the heating surface 5 can be the same as the color of other parts of the surface of the hand warmer body 1.

[0039] In an embodiment, the heating surface 5 is a smooth surface. In this way, when the user needs to paste the base layer 2 to the heating surface 5, the base layer 2 can better fit the heating surface 5, on the one hand, the content on the base layer 2 can be better presented, on the other hand, the base layer 2 is heated more evenly, so that the temperature-sensitive color-changing layer 3 is also heated more evenly, and the heating of each part of the temperature-sensitive color-changing layer 3 is more synchronized.

[0040] In one embodiment, the area of the heat-generating panel 8 directly opposite the heat-generating sheet 9 has the same thickness, so that when the heat-generating panel 8 is heated by the heat-generating sheet 9, the heat-generating panel 8 transmits heat more uniformly, so that the heat-generating panel 8 transmits heat more uniformly to the temperature-sensitive color-changing layer 3, and the temperature-sensitive color-changing layer 3 changes in temperature more synchronously.

[0041] The temperature-sensitive color-changing hand warmer uses the following method: (1) turn on the hand warmer body 1, and the hand warmer body 1 generates heat; (2) place the base layer 2 provided with the temperature-sensitive color-changing layer 3 close to or paste the temperature-sensitive color-changing layer 3 at a specified position of the hand warmer body 1, and the temperature-sensitive color-changing layer 3 changes under heat, so that the content on the base layer 2 is presented to the user.

[0042] On the premise that no conflict occurs, the person skilled in the art can freely combine and superimpose the above-mentioned additional technical features.

[0043] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the scope of protection of the utility model. Any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model belong to the scope of protection required by the utility model.

Claims

1. A temperature-sensitive color-changing hand warmer, characterized by, The utility model relates to a hand warmer, which comprises: a hand warmer body capable of generating heat; a base layer provided with content, which is one or more of a pattern, text, color, and digital image; a thermochromic layer provided on the base layer, which is used to cover the content on the base layer; in an initial state, the color of the thermochromic layer can obscure the content on the base layer; when the hand warmer body generates heat, the heat of the hand warmer body is transferred to the thermochromic layer, the thermochromic layer becomes transparent or translucent, and the content on the base layer can be displayed through the thermochromic layer; when the hand warmer body stops generating heat, the thermochromic layer gradually cools down to restore its original color to obscure the content on the base layer.

2. The thermochromatic hand warmer according to claim 1, wherein, The base layer is one of a greeting card, postcard, sticker, or photo.

3. The thermochromatic hand warmer gem of claim 1, wherein, The hand warmer body is provided with a sticking surface, and the base layer is stuck on the sticking surface; the sticking surface is a plane or a plane close to a plane.

4. The thermochromatic hand warmer gem of claim 3, wherein, The hand warmer body comprises a heating surface, which is provided on the front surface of the hand warmer body; at least part of the heating surface constitutes the sticking surface.

5. The thermochromatic hand warmer gem of claim 4, wherein, The heating surface is the sticking surface, and the shape and size of the base layer are the same as those of the heating surface.

6. The thermochromatic hand warmer gem of claim 1, wherein, The hand warmer body comprises a shell, a heating surface plate, a heating sheet, a battery, and a circuit board; the shell is provided with a receiving groove; the shell is internally provided with a receiving space; the receiving groove is provided with a through hole; the receiving groove communicates with the receiving space through the through hole; the battery and the circuit board are arranged in the receiving space; the heating sheet is arranged in the receiving groove; the heating sheet is connected with the circuit board through a conductive part; the conductive part penetrates through the through hole; the battery is connected with the circuit board; and the heating surface plate is arranged on the receiving groove and is shaped to fit the receiving groove.

7. The thermochromatic hand warmer gem of claim 6, wherein, The heating sheet is stuck on the surface of the heating surface plate close to the heating sheet.

8. The thermochromatic hand warmer gem of claim 4, wherein, The color of the heating surface is different from that of other parts of the surface of the hand warmer body; the color difference is a difference in color type or a difference in color depth.

9. The thermochromatic hand warmer gem of claim 4, wherein, The heating surface is a smooth surface.

10. The thermochromatic hand warmer gem of claim 6, wherein, The thickness of the area of the heating surface plate opposite to the heating sheet is the same.

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