CN111494088A

CN111494088A - Hand warmer

Info

Publication number: CN111494088A
Application number: CN202010479571.3A
Authority: CN
Inventors: 张谦; 王兰兰; 卢海峡; 毕春燕
Original assignee: Shenzhen Enwang Advanced Material Technology Co Ltd
Current assignee: Shenzhen Enwang Advanced Material Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-07

Abstract

The embodiment of the invention provides a hand warmer, which relates to the field of articles for daily use and comprises a heating piece, a first conducting piece and a second conducting piece, wherein the heating piece is provided with a first heating area and a second heating area, one side of the first conducting piece covers the first heating area, part of the second conducting piece covers one side, far away from the first heating area, of the first conducting piece, and the other part of the second conducting piece covers the second heating area. Although the heating temperature of the first heating region is higher than that of the second heating region, the thermal conductivity of the first conductive member is lower than that of the second conductive member. Thus, the temperatures of the parts of the second conduction piece are close, and the situation that the user is scalded due to the fact that the local temperature of the second conduction piece is too high can be reduced.

Description

Hand warmer

Technical Field

The invention relates to the field of articles for daily use, in particular to a hand warmer.

Background

Hand warmer mainly adopts the electrical heating technique to heat, generally, with heating wire or carbon fiber electric heat membrane laminating on metal casing, again with heating wire or carbon fiber electric heat membrane circular telegram, can produce the heat after heating wire or carbon fiber electric heat membrane heating to on transferring the heat to metal casing, the user places the hand on metal casing, in order to realize the purpose of heating.

Traditional hand warmer is precious at the during operation, and each of heating wire or carbon fiber electric heat membrane generates heat the region and is not balanced, that is to say, both have the higher district that generates heat of the temperature that generates heat on heating wire or the carbon fiber electric heat membrane, also have the lower district that generates heat of the temperature that generates heat. Thus, the temperature of different parts of the metal shell is different, so that the hand of a user is easily scalded by the part with higher temperature on the metal shell.

Disclosure of Invention

The present invention aims to provide a hand warmer which can effectively improve the above mentioned technical problems.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the present invention provides a hand warmer, including:

a heat generating member having a first heat generating region and a second heat generating region;

a first conductive member having one side covering the first heat generation region;

a second conducting member, wherein a part of the second conducting member covers one side of the first conducting member far away from the first heat generating area, and another part of the second conducting member covers the second heat generating area;

the heating temperature of the first heating area during working is higher than that of the second heating area during working, and the heat conductivity coefficient of the first conducting piece is smaller than that of the second conducting piece.

In an optional embodiment, the second heat generation region is disposed around the first heat generation region along a circumferential direction of the first heat generation region, the second conductive member includes a first conductive portion and a second conductive portion connected to each other, the second conductive portion is disposed around the first conductive portion along the circumferential direction of the first conductive portion, the first conductive portion covers a side of the first conductive member away from the first heat generation region, and the second conductive portion covers the second heat generation region.

In an optional embodiment, the hand warmer further comprises a mounting case, the mounting case is located on a side of the heat generating member away from the first conducting member, and the mounting case is connected with the second conducting member to limit the heat generating member and the first conducting member between the mounting case and the second conducting member.

In an optional implementation mode, the edge of the second conduction piece is bent, a first buckle is arranged on the inner side of the edge of the second conduction piece, the edge of the installation shell is bent to be matched with the edge of the second conduction piece, a second buckle is arranged on the outer side of the edge of the installation shell, and the second conduction piece is covered on the installation shell so that the first buckle is clamped with the second buckle.

In an optional embodiment, a fixing groove is formed on one side of the mounting shell close to the heat generating member, and the heat generating member is embedded in the fixing groove.

In an optional embodiment, a through hole is formed in a part of the second conducting piece, which covers one side of the first conducting piece, which is far away from the first heat-generating area, and the first conducting piece and the first heat-generating area are made of transparent materials;

the hand warmer further comprises a luminous body, the mounting shell is further provided with a containing groove used for containing the luminous body, and the area enclosed by the containing groove, the first heating area and the area enclosed by the through hole are correspondingly arranged.

In an optional embodiment, the hand warmer further comprises a battery, the battery is electrically connected with the heating element, a clamping groove is formed in one side, away from the heating element, of the installation shell, the area where the clamping groove is located and the area, covering the installation shell, of the first heating area are staggered, and the battery is clamped in the clamping groove.

In an optional embodiment, the number of the card slots is two, the two card slots are symmetrically arranged around the region where the first heat-generating region covers the mounting shell, and the battery is clamped in both the two card slots.

In an optional embodiment, the mounting case is further provided with wire passing holes, the wire passing holes penetrate through two opposite sides of the mounting case, and the wire passing holes are used for enabling cables to extend from the battery to the heat generating component.

In an optional embodiment, the number of the first conducting pieces, the second conducting pieces, the heating pieces and the mounting shells is two, and the first conducting pieces, the second conducting pieces, the heating pieces and the mounting shells are symmetrically arranged about a reference plane, and the reference plane is two attaching surfaces where the mounting shells are attached to each other.

The beneficial effects of the embodiment of the invention include, for example:

the embodiment of the invention provides a hand warmer which comprises a heating piece, a first conducting piece and a second conducting piece, wherein the heating piece is provided with a first heating area and a second heating area, one side of the first conducting piece covers the first heating area, part of the second conducting piece covers one side, far away from the first heating area, of the first conducting piece, and the other part of the second conducting piece covers the second heating area. Therefore, heat generated when the first heating area works can be transferred to the second conducting piece through the first conducting piece, and heat generated when the second heating area works can be directly transferred to the second conducting piece. Although the heating temperature of the first heating area is higher than that of the second heating area, the first conducting member can reduce partial heat transfer to the second conducting member because the thermal conductivity of the first conducting member is lower than that of the second conducting member, so that the heat transfer from the first heating area to the second conducting member via the first conducting member is close to the heat transfer from the second heating area to the second conducting member directly. Thus, the temperatures of the parts of the second conduction piece are close, and the situation that the user is scalded due to the fact that the local temperature of the second conduction piece is too high can be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an exploded view of a hand warmer provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a heat generating component according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second conductive element according to an embodiment of the present invention at a first viewing angle;

fig. 4 is a schematic structural diagram of a mounting housing according to an embodiment of the present invention at a first viewing angle;

fig. 5 is a schematic structural diagram of a second conductive element provided in an embodiment of the present invention at a second viewing angle;

fig. 6 is a schematic structural diagram of a mounting housing according to an embodiment of the present invention at a second viewing angle.

Icon: 1-hand warmer; 11-a heat generating member; 111-a first heat-generating zone; 112-a second heat-generating zone; 12-a first conducting member; 13-a second conductor; 131-a first conducting part; 132-a second conductive portion; 133-a first clasp; 134-a via; 14-mounting a housing; 141-a second buckle; 142-a fixation groove; 143-a receiving tank; 144-a card slot; 145-mounting grooves; 146-a wire-passing hole; 15-a battery; 16-an electronic control assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides a hand warmer 1, the hand warmer includes a heat generating member 11, a first conducting member 12 and a second conducting member 13, the heat generating member 11 includes a first heat generating region 111 and a second heat generating region 112, one side of the first conducting member 12 covers the first heat generating region 111, a part of the second conducting member 13 covers a side of the first conducting member 12 away from the first heat generating region 111, and another part of the second conducting member 13 covers the second heat generating region 112.

In this way, the heat generated when the first heat generating region 111 operates can be transferred to the second heat transferring member 13 through the first heat transferring member 12, and the heat generated when the second heat generating region 112 operates can be directly transferred to the second heat transferring member 13.

It is understood that, although the heat generation temperature of the first heat generation region 111 is higher than that of the second heat generation region 112, since the thermal conductivity of the first conductive member 12 is smaller than that of the second conductive member 13, the first conductive member 12 can reduce a portion of heat transfer to the second conductive member 13, so that the heat transfer from the first heat generation region 111 to the second conductive member 13 through the first conductive member 12 is close to the heat transfer from the second heat generation region 112 to the second conductive member 13 directly. In this way, the temperatures of the respective portions of the second conductor 13 are close to each other, and it is possible to reduce the possibility that the user is scalded due to the local excessive temperature of the second conductor 13.

It should be noted that, in this embodiment, the second conducting element 13 is made of a metal material, and has a good heat conducting property, so as to effectively achieve the hand warming function.

In this embodiment, the first conductive member 12 may be made of plastic material, such as: PC board, PET, PI, silica gel, acrylic and other materials. The thermal conductivity of the first conductive member 12 made of the plastic material is smaller than that of the second conductive member 13, so that the heat transferred from the first heat-generating region 111 to the second conductive member 13 can be effectively reduced, and the situation that the user is scalded due to the overhigh local temperature of the second conductive member 13 can be reduced.

Referring to fig. 1 to 3, in the present embodiment, the second conductive element 13 includes a first conductive portion 131 and a second conductive portion 132 connected to each other, the first conductive portion 131 covers a side of the first conductive element 12 away from the first heat-generating region 111, and the second conductive portion 132 covers the second heat-generating region 112.

That is, in the present embodiment, the heat generated when the first heat generating region 111 operates is transferred to the first conducting portion 131 through the first conducting member 12. The heat generated when the second heat generating region 112 operates is directly conducted to the second conductive part 132.

In the present embodiment, the second heat generating region 112 is disposed around the first heat generating region 111 along the circumferential direction of the first heat generating region 111, and correspondingly, the second conductive part 132 is disposed around the first conductive part 131 along the circumferential direction of the first conductive part 131. Like this, make things convenient for user of service to carry out warm hand in the position of difference, user of service's hand contact first conduction portion 131 or second conduction portion 132 all can reach the purpose of warm hand.

Referring to fig. 1 and 2, in the present embodiment, the hand warmer 1 further includes a mounting case 14, and the mounting case 14 is located on a side of the heat generating member 11 away from the first conducting member 12. It is understood that the heat generating member 11 and the first conductive member 12 are located between the mounting case 14 and the first conductive member 12. When the second conductive member 13 is mounted on the mounting case 14, the heat generating member 11 and the first conductive member 12 are confined between the second conductive member 13 and the mounting case 14.

Thus, the heat generating member 11 and the first conduction member 12 can be fixed, and the first conduction member 12 can be kept in a state of covering the first heat generating region 111 while preventing the heat generating member 11 and the first conduction member 12 from moving relative to each other.

Specifically, in the present embodiment, the heat generating member 11 and the first conductive member 12 are both sheet-like structures. The heat generating member 11 and the second conductive member 13 are stacked and bonded to each other, so that the heat generating member 11 and the first conductive member 12 can be prevented from moving relative to each other.

Specifically, in the present embodiment, a side of the heat generating member 11 remote from the first conductive member 12 is bonded to the mounting case 14, and a side of the first conductive member 12 remote from the heat generating member 11 is bonded to the second conductive member 13.

Referring to fig. 4, in the present embodiment, a fixing groove 142 is disposed on a side of the mounting case 14 close to the heat generating member 11, and the heat generating member 11 is embedded in the fixing groove 142. Thus, the fixing groove 142 can limit the heat generating member 11, and the heat generating member 11 is prevented from moving relative to the mounting case 14.

Specifically, in the present embodiment, the heat generating member 11 is adhered to the bottom wall of the fixing groove 142.

Referring to fig. 1, fig. 3 to fig. 5, in the present embodiment, the edges of the second conductive element 13 and the mounting shell 14 are both bent, the inner side of the edge of the second conductive element 13 is provided with a first snap 133, the outer side of the edge of the mounting shell 14 is provided with a second snap 141, and the second conductive element 13 is covered on the outer wall of the mounting shell 14, so that the first snap 133 and the second snap 141 are snapped. In this way, the second conductive member 13 and the mounting case 14 can be fixed relatively, and meanwhile, the heat generating member 11 and the first conductive member 12 are located inside the second conductive member 13, and the second conductive member 13 can protect the heat generating member 11 and the first conductive member 12.

Referring to fig. 1, in the present embodiment, the hand warmer 1 further includes a battery 15, the battery 15 is electrically connected to the heating element 11, and the battery 15 can provide electric energy for the heating element 11.

Referring to fig. 2 and 6, in the present embodiment, a clamping groove 144 is disposed on a side of the mounting case 14 away from the heat generating component 11, a region where the clamping groove 144 is located is staggered from a region where the first heat generating region 111 covers the mounting case 14, and the battery 15 is clamped in the clamping groove 144. Thus, the battery 15 is displaced from the region where the first heat generation region 111 is mounted, and the battery 15 can be prevented from being bulged or exploded due to an excessively high temperature.

Of course, the locking groove 144 can also play a certain limiting role for the battery 15, and the battery 15 locked in the locking groove 144 can be kept relatively fixed with the mounting shell 14.

Specifically, in the present embodiment, the number of the card slots 144 is two, two card slots 144 are symmetrically arranged about the area where the first heat-generating area 111 covers the mounting case 14, and the battery 15 is clamped in each of the two card slots 144. It can be understood that, in the present embodiment, the two batteries 15 are arranged at intervals, and both the two batteries 15 are arranged in a staggered manner from the area where the first heat-generating area 111 covers the mounting case 14, so that the safety performance can be effectively improved.

In this embodiment, both the batteries 15 are 18650 lithium batteries, and the two batteries 15 may be connected in series or in parallel.

Referring to fig. 4, in the present embodiment, the mounting case 14 is further provided with a wire passing hole 146, the wire passing hole 146 penetrates through two opposite sides of the mounting case 14, and a cable from the battery 15 can pass through the wire passing hole 146 and be connected to the heat generating member 11. The battery 15 supplies electric power to the heat generating member 11 through a cable.

Referring to fig. 1-4 and 6, in the present embodiment, the first conductive part 131 is provided with a through hole 134, the hand warmer 1 further includes a light emitter (not shown), the mounting case 14 is provided with a receiving groove 143 for receiving the light emitter, an area enclosed by the receiving groove 143, the first heat-generating area 111, and an area enclosed by the through hole 134 are correspondingly disposed, and in the present embodiment, the heat-generating element 11 and the first conductive part 12 are made of transparent materials.

Thus, a user can see the light emitting body in the receiving groove 143 through the first conductive member 12 and the first heat emitting region 111 through the through hole 134.

In some embodiments, the brightness of the light emitter may represent the charge of the battery 15, that is, when the brightness of the light emitter becomes dark, it may indicate that the charge of the battery 15 is low, and prompt the user to charge.

In some embodiments, the light emitting body can be L ED lamps with different light emitting colors, such as a bi-color lamp, a tri-color lamp or a seven-color lamp.

It is worth noting that, in this embodiment, the second conduction piece 13 is a metal shell, and the through hole 134 is formed in the second conduction piece 13, so that the user can observe the illuminant through the through hole 134, and the weight of the second conduction piece 13 can be effectively reduced, so that the hand warmer 1 is light and convenient to use and carry.

In this embodiment, the first conductive member 12 may be made of a transparent plastic material. Correspondingly, in the present embodiment, the whole of the heat generating member 11 is a transparent structure. Specifically, the heating member 11 may be a transparent graphene electrothermal film, a transparent ITO electrothermal film, a transparent nano silver wire electrothermal film, a transparent metal mesh electrothermal film, or the like.

It should be noted that, in other embodiments, only the region to which the first heat-generating region 111 belongs may be made of a transparent material.

It should be noted that, in this embodiment, the heating element 11 is made of a graphene electrothermal film by a chemical vapor deposition method, the number of graphene layers is controlled to be 1-10, the light transmittance can reach more than 80%, and the total thickness is 0.1-1 mm. The whole heating performance is good, and the light transmittance is high.

In addition, the heating element 11 made of graphene has a far infrared physiotherapy effect. The heating element 11 provides heat to the user and also has health care function. In addition, the graphene material and the human body resonate at the same frequency, so that the condition of dry skin is not easy to occur when a user uses the device.

It should be noted that, in practical use, the silk-screen patterns may be customized on the surfaces of the first conducting member 12 and the heat generating member 11, and the silk-screen patterns may be customized according to the needs of the user. The user may also view the customized silk-screen pattern through the through-holes 134 while using it.

With reference to fig. 1 and fig. 6, in the present embodiment, a mounting groove 145 is further disposed in the mounting shell 14, an electronic control assembly 16 is mounted in the mounting groove 145, the electronic control assembly 16 is electrically connected to the battery 15, and the battery 15 provides electric energy for the electronic control assembly 16.

In the present embodiment, the region where the mounting groove 145 is located is also displaced from the region where the first heat-generating region 111 covers the mounting shell 14, so that the occurrence of safety problems of the electronic control unit 16 due to an excessively high temperature can be reduced.

In the present embodiment, the outer contours of the mounting groove 145 and the electronic control component 16 are both semi-elliptical, and can be adapted to the curved portion of the edge of the mounting shell 14, so as to reduce the occupied space inside the mounting shell 14.

In practical use, the electronic control component 16 can be electrically connected to the heating element 11 to control the heating temperature of the heating element 11, and the electronic control component 16 can also be electrically connected to the light emitting element to control the light emitting effect of the light emitting element.

Specifically, in practical use, the electronic control component 16 may include an MCU main control board, and a power control unit, a heating control unit, an NTC temperature control probe, a switch gear adjustment key, a usb interface, a type-C interface, etc. on the main control board.

It will be appreciated that a power control unit may be used to control the discharge of electrical energy from the battery 15. The heat generation control unit may be used to control the amount of heat generation of the heat generating member 11. The temperature control probe can be used for detecting the temperature of the battery 15 or the heating element 11 and finding potential safety hazards in time. The starting gear adjusting key can be used for adjusting the starting or stopping of the heating element 11. The usb interface and the type-C interface can be used to connect cables to achieve charging or discharging.

It can be understood that the hand warmer 1 can also be used as a charger when the discharging operation is performed through the usb interface and the type-C interface.

It should be noted that, in actual use, the electronic control component 16 may be provided with short-circuit protection, overcurrent protection, overvoltage protection, and the like, and in the short-circuit protection, the overcurrent protection, and the overvoltage protection, the electronic control component 16 may control the whole to stop working, and needs to be activated by subsequent charging.

It should be noted that the above control circuit diagrams are all related to the related art, and will not be described in detail here.

Referring to fig. 1, in the present embodiment, the number of the first conductive parts 12, the second conductive parts 13, the heat generating parts 11, and the mounting cases 14 is two, and the two parts are symmetrically arranged with respect to a reference plane, where the reference plane is an attaching surface where the two mounting cases 14 are attached to each other.

Like this, when this hand warmer 1 was embraced to user's both hands, the heat can be acquireed to both hands homoenergetic, and the both hands of being convenient for get warm simultaneously.

It should be noted that, in practical use, the two heat generating members 11 may be connected in series or in parallel.

The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hand warmer, comprising:

2. The hand warmer according to claim 1, wherein the second heat generation region is disposed around the first heat generation region along a circumferential direction of the first heat generation region, the second conductive member includes a first conductive portion and a second conductive portion connected to each other, the second conductive portion is disposed around the first conductive portion along the circumferential direction of the first conductive portion, the first conductive portion covers a side of the first conductive member away from the first heat generation region, and the second conductive portion covers the second heat generation region.

3. The hand warmer of claim 1, further comprising a mounting housing located on a side of the heat generating member remote from the first conductive member, the mounting housing being coupled to the second conductive member to confine the heat generating member and the first conductive member between the mounting housing and the second conductive member.

4. The hand warmer of claim 3, wherein the edge of the second conductive element is bent, a first buckle is disposed on the inner side of the edge of the second conductive element, the edge of the mounting shell is bent to be matched with the edge of the second conductive element, a second buckle is disposed on the outer side of the edge of the mounting shell, and the second conductive element is covered on the mounting shell, so that the first buckle is clamped with the second buckle.

5. The hand warmer according to claim 3, wherein a fixing groove is formed on one side of the mounting case close to the heat generating member, and the heat generating member is embedded in the fixing groove.

6. The hand warmer according to claim 3, wherein the second conducting member has a through hole at a position covering a side of the first conducting member away from the first heat-generating region, and the first conducting member and the first heat-generating region are both made of transparent materials;

7. The hand warmer according to claim 3, further comprising a battery, wherein the battery is electrically connected with the heat generating member, a clamping groove is formed in one side, away from the heat generating member, of the mounting shell, the clamping groove is located in a position staggered with a position, covered with the mounting shell, of the first heat generating region, and the battery is clamped in the clamping groove.

8. The hand warmer of claim 7, wherein the number of the card slots is two, the two card slots are symmetrically arranged about a region where the first heat-generating region covers the mounting case, and the battery is clamped in both of the two card slots.

9. The hand warmer of claim 7, wherein the mounting case is further provided with wire passing holes, the wire passing holes penetrate through two opposite sides of the mounting case, and the wire passing holes are used for enabling cables to extend from the battery to the heat generating member.

10. The hand warmer according to any one of claims 3-9, wherein the number of the first conducting member, the second conducting member, the heat generating member and the mounting housing is two, and the two conducting members, the two heat generating members and the mounting housing are symmetrically arranged with respect to a reference plane, and the reference plane is an abutting surface where the two mounting housings abut against each other.