CN219109923U

CN219109923U - Hand warmer

Info

Publication number: CN219109923U
Application number: CN202222555130.4U
Authority: CN
Inventors: 许广博; 欧阳学; 刘刚; 唐小林
Original assignee: Shenzhen Ruiwu Digital Technology Co ltd
Current assignee: Shenzhen Ruiwu Digital Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-09-23
Publication date: 2023-06-02
Anticipated expiration: 2032-09-23
Also published as: CN219109924U

Abstract

The utility model provides a hand warmer, which comprises a hand warmer main body, wherein the hand warmer main body comprises an inner surface layer and an outer surface layer, the inner surface layer surrounds a heating cavity, openings communicated with the heating cavity are respectively formed at two opposite ends of the outer surface layer, a containing cavity is formed between the inner surface layer and the outer surface layer, a heat insulation layer and a heat preservation piece are arranged in the containing cavity, the heat insulation layer is positioned between the outer surface layer and the heat preservation piece, and a heating piece is further arranged between the heat preservation piece and the inner surface layer. According to the utility model, the heat insulation layer is arranged between the outer surface layer and the heat preservation piece, so that the efficiency of radiating heat generated by the heating piece to the outside during working is reduced, and the heating effect is improved.

Description

Hand warmer

Technical Field

The utility model relates to the technical field of heating, in particular to a hand warmer.

Background

In cold weather, people usually use a hand warmer for warming in order to protect hands from being frozen. The hand warmer is provided with the cavity for the hand of a user to be inserted, the cavity is heated during the work of the hand warmer, and the heat of the cavity is further transferred to the hand of the user to play a role in heating.

Among the prior art, as patent CN209734764U discloses a graphite alkene warms up hand and precious, including the precious body of warmly hand, the precious body of warmly hand is hollow tubular structure, the precious body of warmly hand includes extexine lamellar body and extexine lamellar body, be provided with the module that generates heat in the inlayer between extexine lamellar body and the extexine lamellar body, extexine lamellar body inboard is equipped with the cold-proof layer, the module during operation that generates heat produces some heat can be stored in the cold-proof layer, so that the module that generates heat can continue to heat user's hand after stopping working cold-proof layer, however cold-proof layer and extexine lamellar body all can not play fine thermal insulation effect, the module during operation that generates heat gives off to the external world after cold-proof layer and extexine lamellar body easily, influence the heating effect.

Disclosure of Invention

In view of the above, the present utility model provides a hand warmer to solve the above problems. The utility model adopts the following technical scheme:

the embodiment of the utility model provides a hand warmer, which comprises a hand warmer main body, wherein the hand warmer main body comprises an inner surface layer and an outer surface layer, the inner surface layer encloses a heating cavity, openings communicated with the heating cavity are respectively arranged at the opposite ends of the outer surface layer, a containing cavity is formed between the inner surface layer and the outer surface layer, a heat insulation layer and a heat preservation piece are arranged in the containing cavity, the heat insulation layer is positioned between the outer surface layer and the heat preservation piece, and a heating piece is further arranged between the heat preservation piece and the inner surface layer.

The thermal insulation layer is styrene-butadiene rubber and is adhered and fixed on one side of the outer surface layer, which is close to the accommodating cavity.

The hand warmer comprises a hand warmer body and is characterized in that the hand warmer body further comprises an inner liner layer, wherein the inner liner layer is arranged in the accommodating cavity and located between the heat insulation layer and the heat preservation piece.

The hand warmer comprises a hand warmer body and is characterized in that the hand warmer body further comprises a first supporting layer, wherein the first supporting layer is arranged in the accommodating cavity and located between the heat insulation layer and the inner liner layer.

The first supporting layer is made of memory sponge and is fixedly adhered to one side, close to the heat insulation layer, of the inner liner layer.

The hand warmer comprises a main body and is characterized in that the hand warmer also comprises a second supporting layer, wherein the second supporting layer is arranged in the accommodating cavity and is adhered and fixed on one side, close to the accommodating cavity, of the inner surface layer, and the heating piece is positioned between the second supporting layer and the heat preservation piece.

The heating piece is clamped and fixed between two pieces of adhesive cloth, and at least one piece of adhesive cloth is fixedly connected with the inner surface layer.

The outer surface layer comprises a surrounding part and two side parts, wherein the two side parts are respectively connected to two opposite sides of the surrounding part, and the two openings are respectively arranged at two opposite ends of the surrounding part.

The surrounding part comprises a top surface, a bottom surface and two end surfaces, wherein the top surface and the bottom surface are oppositely arranged, the two end surfaces are respectively connected between the top surface and the bottom surface, and the two openings are respectively arranged on the two end surfaces and extend along the height direction of the surrounding part.

The top surface is provided with a switch knob electrically connected with the heating element, the top of the switch knob is provided with a display screen, and one side part of the switch knob is provided with a power interface; and/or the bottom surface is provided with an identification layer, and the identification layer is used for identifying the product information of the hand warmer.

The embodiment of the utility model provides a hand warmer, which comprises a hand warmer main body, wherein the hand warmer main body comprises an inner surface layer and an outer surface layer, the inner surface layer surrounds a heating cavity, openings communicated with the heating cavity are respectively arranged at the opposite ends of the outer surface layer, a containing cavity is formed between the inner surface layer and the outer surface layer, a heat insulation layer and a heat preservation piece are arranged in the containing cavity, the heat insulation layer is arranged between the outer surface layer and the heat preservation piece, a heating piece is further arranged between the heat preservation piece and the inner surface layer, heat generated during operation of the heating piece can be transferred into the heating cavity through the inner surface layer to heat the hands of a user for resisting cold, the temperature of the heat preservation piece can be raised during operation of the heating piece, the heat insulation piece can play a certain heat insulation role on the heat preservation piece, the heat of the heat preservation piece is prevented from being emitted to the outside through the outer surface layer, the rest heat of the heat preservation piece can continue to heat the heating cavity within a period of time after the operation of the heating piece is stopped, and the heating effect is improved while energy is saved.

Drawings

FIG. 1 is a schematic diagram of a hand warmer according to another embodiment of the present utility model;

FIG. 2 is a schematic view of the hand warmer shown in FIG. 1 at another angle;

FIG. 3 is a cross-sectional view of the hand warmer shown in FIG. 1;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is an enlarged view at B in FIG. 3;

FIG. 6 is a partially exploded view of the hand warmer of FIG. 1;

FIG. 7 is an exploded view of the switch knob, flexible glue connection piece, light transmitting piece and control circuit board of the hand warmer of FIG. 1;

FIG. 8 is a schematic diagram of a hand warmer according to an embodiment of the present utility model;

FIG. 9 is a partially exploded view of the hand warmer of FIG. 8;

fig. 10 is an exploded view of the outer peripheral portion shown in fig. 9.

Detailed Description

Before the embodiments are explained in detail, it is to be understood that the utility model is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The utility model is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of the terms "comprising," "including," "having," and the like are intended to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present utility model is not limited to the number of the element as one, but may include a plurality of the elements.

Referring to fig. 1 to 7, an embodiment of the present utility model provides a hand warmer, including a hand warmer main body 100, the hand warmer main body 100 includes an inner surface layer 110 and an outer surface layer 120, the inner surface layer 110 encloses a heating cavity 130, two opposite ends of the outer surface layer 120 are respectively provided with an opening 123 communicating with the heating cavity 130, a containing cavity 140 is formed between the inner surface layer 110 and the outer surface layer 120, a heat insulation layer 150 and a heat preservation member 160 are disposed in the containing cavity 140, the heat insulation layer 150 is located between the outer surface layer 120 and the heat preservation member 160, and a heating member 170 is disposed between the heat preservation member 160 and the inner surface layer 110.

The heat that generates heat piece 170 during operation can be through interior top layer 110 transfer to heating chamber 130 in order to keep out the cold for the hand heating of user to the temperature of heat piece 170 during operation heat preservation piece 160 can rise, and heat preservation piece 150 can play certain thermal-insulated effect to heat preservation piece 160, avoids heat preservation piece 160 to distribute to the external world through extexine 120, makes the heat piece 170 keep on heating chamber 130 in a period of time after stopping working heat preservation piece 160 remaining heat, has improved the heating effect when the energy saving.

Specifically, the heating element 170 has two heating elements and is respectively located at two opposite sides of the inner surface layer 110, so as to heat the hands in a wrapping manner. The heating element 170 can be a graphene heating element, plays a role in far infrared hot compress, can promote blood circulation of hands, and solves the problem of stiff and cracking of frozen hands in winter.

Specifically, the inner surface layer 110 has a ring-shaped structure with two ends penetrating therethrough, and a heating chamber 130 for heating the hands of the user is provided inside. The inner surface layer 110 and the outer surface layer 120 are connected by sewing, and the connecting part of the inner surface layer 110 and the outer surface layer 120 is bent towards the direction of the accommodating cavity 140, so that the appearance integrity is ensured, the possibility of abrasion at the connecting part is reduced, and the service life of a product is prolonged. The inner surface layer 110 and the outer surface layer 120 are made of cloth, for example, the inner surface layer 110 is made of crystal super soft velvet, the outer surface layer 120 is made of austenitic velvet, and the material is soft, so that the hand of a user can feel more comfortable when the hand of the user is inserted into the heating cavity 130 and touches the outer surface layer 120, the heating cavity 130 is enlarged when the hand of the user stretches into the heating cavity 130, the hand is completely wrapped by the inner surface layer 110, and when the hand warmer works, the hand of the user can feel the heat transferred by the inner surface layer 110 comfortably.

Preferably, the thermal insulation layer 150 is adhered and fixed to the side of the outer surface layer 120 close to the accommodating cavity 140, for example, the thermal insulation layer 120 and the outer surface layer 120 are adhered and fixed into an integral structure by glue, so that the connection strength of the two is improved, and meanwhile, the thermal insulation layer is lighter and thinner, and the portability of the product is improved. In this embodiment, the thermal insulation layer 150 may be styrene-butadiene rubber, which has good rebound resilience and small permanent deformation, and has large thermal resistance, so that the efficiency of heat transfer from the side of the thermal insulation layer 150 close to the thermal insulation member 160 to the side close to the outer surface layer 120 can be effectively reduced, and the efficiency of heat dissipation to the outside of the hand warmer main body 100 can be further reduced.

Specifically, the heat preservation member 160 is a cotton core, preferably pearl cotton, which has good rebound durability and is beneficial to keeping the external contour of the hand warmer main body 100. The heating element 170 is located between the heat insulating element 160 and the inner surface layer 110, and when the heating element 170 works, the temperature of the heating element 170 can be transferred to the heat insulating element 160, so that the temperature in the accommodating cavity 140 is raised, the heat insulating element 160 has a heat insulating effect, and the temperature can be locked for a long time in a certain time, so that even if the heating element 170 stops working, the heat insulating element 160 still can transfer the heat stored by the heat insulating element to the hands of a user.

Further, the hand warmer main body 100 further includes an inner liner 180, and the inner liner 180 is disposed in the accommodating cavity 140 and between the heat insulating layer 150 and the heat insulating member 160. Optionally, the inner liner 180 is made of polyester fabric, so that the outer surface 120 has high strength and elastic recovery capability, and not only can the outer surface 120 be ensured to have reliable deformation recovery capability, but also the heat insulation layer 150 and the heat preservation piece 160 can be separated, and the heat insulation layer 150 is protected.

Further, the hand warmer main body 100 further includes a first supporting layer 181, and the first supporting layer 181 is disposed in the accommodating cavity 140 and between the heat insulating layer 150 and the inner liner 180. Optionally, the first supporting layer 181 is a memory sponge, and has good supporting performance and deformation recovery capability, and the first supporting layer 181 not only can support the outer surface layer 120 outwards, but also further separates the outer surface layer 120 and the heat insulation member 160, so that the problem that the outer surface layer 120 is uneven due to filling of the heat insulation member 160 into the accommodating cavity 140 is avoided, and further the flatness of the outer surface layer 120 is maintained, so that the hand warmer main body 100 can maintain the original external profile for a long time.

Preferably, the first supporting layer 181 is adhered and fixed to one side of the inner liner 180 adjacent to the heat insulating layer 150. For example, the first supporting layer 181 and the inner liner 180 are adhered and fixed into an integral structure through glue, so that the connection strength of the first supporting layer and the inner liner is improved, and the overall thickness of the product is reduced.

Further, the hand warmer main body 100 further includes a second supporting layer 111, the second supporting layer 111 is disposed in the accommodating cavity 140 and is adhered and fixed on one side of the inner surface layer 110 close to the accommodating cavity 140, for example, the second supporting layer 111 and the inner surface layer 110 are adhered and fixed into an integral structure through glue, so that the connection strength of the second supporting layer and the inner surface layer is improved, and meanwhile, the overall thickness of the product is reduced. Optionally, the heating element 170 is located between the second supporting layer 111 and the heat insulating element 160, where the second supporting layer 111 is made of a memory sponge, and has good supporting performance and deformation recovery capability, so that on one hand, when the hand of a user is inserted into the heating cavity 130, the inner surface layer 110 is used to prevent the problem that the contact area between the hand and the hand of the user is reduced due to wrinkling, and the hand is not smooth to be inserted into the heating cavity 130, and meanwhile, the second supporting layer 111 can separate the inner surface layer 110 from the heating element 170, so as to avoid foreign body sensation or extrusion damage to the heating element 170 after the hand is inserted into the heating cavity 130.

Further, the heating element 170 is clamped and fixed between two adhesive cloths 171, wherein at least one adhesive cloth 171 is fixedly connected with the inner surface layer 110. Optionally, the adhesive cloths 171 are sewn to the inner surface layer 110, and the two adhesive cloths 171 wrap and cover the heating element 170 and then fix the heating element 170 on the inner surface layer 110, so that the heating element 170 is prevented from being displaced when the hand of a user is inserted into the heating cavity 130 to affect the heating effect.

In an embodiment, the accommodating cavity 140 is further provided with a control circuit board 141 and a battery 142, and the heating element 170 and the battery 142 are respectively electrically connected with the control circuit board 141. Specifically, the battery 142 is located between the inner liner 180 and the thermal insulation member 160, optionally, the battery 142 is disposed in the cloth bag 143, and the cloth bag 143 is sewn to the inner liner 180.

In an embodiment, two ends of the inner surface layer 110 are respectively provided with an elastic restoring member 200, and the elastic restoring member 200 is located in the accommodating cavity 140 and is disposed near the opening 123. Specifically, the elastic restoring member 200 includes four members, two of which are oppositely disposed at one end of the inner surface layer 110, and the other two of which are oppositely disposed at the other end of the inner surface layer 110. The length direction of the elastic restoring member 200 is the same as the length direction of the opening 123. Optionally, the elastic restoring member 200 includes a metal fishbone strip 210 and a stretchable belt 220, the fabric layer 230 is covered on one side of the metal fishbone strip 210 away from the inner surface layer 110 and sewn and connected with the inner surface layer 110, so as to fix the metal fishbone strip 210 on the inner surface layer 110, and the metal fishbone strip 210 has a supporting and shaping function on one side of the inner surface layer 110, so that after a user inserts hands into the heating cavity 130, the inner surface layer 110 is better attached to the hands of the user, and heat can be locked in the heating cavity 130 to warm the hands of the user, and on the other hand, when the inner surface layer 110 is stretched by the hands, the inner surface layer 110 can deform along with the inner surface layer 110, and when the hands are pulled out from the heating cavity 130, the two metal fishbone strips 210 relatively arranged at one end of the inner surface layer 110 deform and drive the opposite sides of the inner surface layer 110 to gradually approach each other, so as to avoid dust entering the heating cavity 130 and causing pollution. The flexible strap 220 is sewn to the fabric layer 230 on a side thereof remote from the metal fishbone 210, further enhancing the ability of the metal fishbone 210 to recover from deformation.

In one embodiment, the edges of the openings 123 are each looped with a constriction 300. The size of the opening 123 is reduced by the arrangement of the necking piece 300, so that the efficiency of heat dissipation from the opening 123 to the outside of the heating cavity 130 is reduced, and the heat preservation effect is improved.

In one embodiment, the outer surface 120 includes a surrounding portion 121 and two side portions 122, the two side portions 122 are respectively connected to opposite sides of the surrounding portion 121, and two openings 123 are respectively provided at opposite ends of the surrounding portion 121. Specifically, the surrounding portion 121 is a hollow structure with two ends penetrating, the opening 123 extends along the circumferential direction of the surrounding portion 121, the surrounding portion 121 and the side portion 122 are connected by stitching, and the connecting portion of the surrounding portion 121 and the side portion 122 is bent towards the direction of the accommodating cavity 140, so that the appearance integrity is ensured, the possibility of abrasion of the connecting portion is reduced, and the service life of the product is prolonged.

In an embodiment, the surrounding portion 121 includes a top surface 101 and a bottom surface 103 which are oppositely disposed, and two end surfaces 102 respectively connected between the top surface 101 and the bottom surface 103, and two openings 123 are respectively disposed on the two end surfaces 102 and extend along the height direction of the surrounding portion 121, so that the openings 123 are prevented from extending onto the side portions 122, and the difficulty in manufacturing is reduced.

The top surface 101 of the surrounding part 121 is provided with a switch knob 700 electrically connected with the heating element 170, and the top of the switch knob 700 is provided with a display screen 720.

Further, one of the side portions 122 is provided with a power interface 400, and the power interface 400 is used for charging the battery 142. In this embodiment, the power interface 400 is a type-c interface. The bottom surface 103 of the surrounding portion 121 is further provided with an identification layer 500, and the identification layer 500 may be a character mark cloth for identifying product information of the hand warmer, such as a brand name, a product model number, an operating voltage, a battery capacity, notes, and the like.

Specifically, the display 720 may be used to display information such as power, temperature, heating gear, etc. When the user's hands are crossed over the chest and inserted into the heating chamber 130, the display 720 is directed just above the user for viewing when the user is low. The soft plastic connecting piece 800 is arranged on the top surface 101, at least part of the soft plastic connecting piece 800 is sunken towards the direction of the accommodating cavity 140 and forms the installation area 810, and the switch knob 700 is arranged on the installation area 810, so that the protruding height of the switch knob 700 relative to the top surface 101 is reduced, and the possibility that a user touches the switch knob 700 by mistake is further reduced. The switch knob 700 has a closing gear and a plurality of heating gears, with different heating gears corresponding to different heating temperatures. When the switch knob 700 is in the off gear, the heating element 170 can be controlled to start working in the corresponding heating gear by rotating the switch knob to any one of the heating gears, and when the two hands of the user are not inserted into the heating cavity 130 within a preset time (for example, 15 s), the heating element 170 can be controlled to stop working. When the switch knob 700 is turned to any heating gear and the heating element 170 is not operated, if the switch knob 700 is turned to other heating gears, the display screen 720 can be awakened, meanwhile, the heating element 170 is controlled to start operating in the corresponding heating gear, and the heating gear has a memory function, so that both hands of a user can control the heating element 170 to start operating in the heating gear which is closed last time when the user inserts the heating cavity 130 next time.

In the above embodiment, the switch knob 700 further includes the rotating housing 710 provided on the mounting area 810 and the encoder 730 provided in the rotating housing 710, and the encoder 730 is electrically connected to the heat generating member through the control circuit board 141. The user can control the encoder 730 by adjusting the rotation angle of the rotation housing 710, thereby adjusting the heating range of the heating element 170. One side of the control circuit board 141, which is close to the switch knob 700, is provided with a circle of indicator lamps 900 corresponding to the position of the switch knob 700, and the soft rubber connecting piece 800 is provided with a light transmission piece 820, wherein the light transmission piece 820 is arranged corresponding to the indicator lamps 900 and surrounds the switch knob 700. When the switch knob 700 is in the off gear, the indicator lamp 900 is turned off, and when the switch knob 700 is in a different heating gear or the battery 142 is in a charged state, the indicator lamp 900 correspondingly displays a different color for the user to distinguish.

Referring to fig. 8 to 10, another embodiment of the present utility model further provides a hand warmer, which is different from the above embodiments in that the hand warmer body 100 includes a peripheral portion 10, a mounting member 20, a supporting member 30 and a covering portion 40, the mounting member 20 is connected to opposite ends of the peripheral portion 10, and the peripheral portion 10 includes an outer surface layer 120, a heat insulation layer 150, a first supporting layer 181 and an inner liner 180 in order from outside to inside. The two opposite sides of the outer periphery 10 are also provided with the connecting ports 11, the supporting piece 30 and the covering part 40 are respectively provided with two connecting ports, the covering part 40 is connected to the connecting ports 11, the supporting piece 30 is fixedly connected with the outer periphery 10, the supporting piece 30 is arranged around the covering part 40, and under the combined action of the supporting piece 30 and the outer periphery 10, the main body 100 of the hand warmer is kept in a cylindrical shape, so that the hand warmer is prevented from being unable to recover the original cylindrical shape after being flattened under the action of external force.

Further, a side of the mounting member 30 exposed to the outside is provided with a switch knob 700 and a display 720 at intervals along the length direction of the hand warmer main body 100, and a hand strap 31 for convenience of carrying by a user.

Further, the mounting member 30 is further provided with a power interface 400 at an end thereof adjacent to one of the covering portions 40. The two openings 123 are respectively provided on the two covering portions 40.

The utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the utility model within the scope of the technical concept of the utility model, and these simple modifications all belong to the protection scope of the utility model. The individual technical features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.

Claims

1. The utility model provides a hand warmer, its characterized in that, includes the hand warmer main part, the hand warmer main part includes inlayer and extexine, the inlayer encloses into the heating chamber, the opposite both ends of extexine are equipped with the intercommunication respectively the opening in heating chamber, the inlayer with be formed with between the extexine and accept the chamber, it is equipped with insulating layer and heat preservation spare to accept the intracavity, the insulating layer is located between the extexine with heat preservation spare, heat preservation spare with still be equipped with the piece that generates heat between the inlayer.

2. The hand warmer of claim 1, wherein said thermal insulation layer is styrene-butadiene rubber, and said thermal insulation layer is adhered and fixed to said outer surface layer at a side adjacent to said receiving cavity.

3. The hand warmer of claim 1, wherein said hand warmer body further comprises an inner liner disposed within said receiving cavity and between said thermal barrier and said thermal insulation member.

4. The hand warmer of claim 3, wherein said hand warmer body further comprises a first support layer disposed within said receiving cavity and between said thermal barrier and said inner liner.

5. The hand warmer of claim 4, wherein said first support layer is a memory sponge, and said first support layer is adhesively secured to said inner liner layer on a side thereof adjacent said thermal barrier layer.

6. The hand warmer of claim 1, wherein said hand warmer body further comprises a second support layer disposed within said receiving cavity and adhesively secured to a side of said inner surface layer adjacent said receiving cavity, said heat generating element being disposed between said second support layer and said heat retaining element.

7. The hand warmer of claim 1, wherein said heat generating element is held between two adhesive cloths, at least one of which is fixedly attached to said inner surface layer.

8. The hand warmer of any one of claims 1-7, wherein said outer skin comprises a surrounding portion and two side portions, said side portions being connected to opposite sides of said surrounding portion, respectively, and said openings being provided at opposite ends of said surrounding portion, respectively.

9. The hand warmer of claim 8, wherein said surrounding portion includes a top surface and a bottom surface disposed opposite to each other, and two end surfaces respectively connected between said top surface and said bottom surface, and two of said openings are respectively provided on two of said end surfaces and extend in a height direction of said surrounding portion.

10. The hand warmer of claim 9, wherein said top surface is provided with a switch knob electrically connected to said heat generating member, a display screen is provided on the top of said switch knob, and one of said side portions is provided with a power interface; and/or the bottom surface is provided with an identification layer, and the identification layer is used for identifying the product information of the hand warmer.