CN209253294U - A kind of novel hand warmer based on phase-change thermal storage - Google Patents

Abstract

The utility model discloses a kind of novel hand warmers based on phase-change thermal storage, including fever tablet, heat storing plate, sealant and shell, the heat storing plate is wrapped on the outside of fever tablet, and the outside of the heat storing plate is successively enclosed with sealant and shell, the hand warmer further includes temperature feedback arrangement, the cable of the fever tablet tail portion connection sequentially passes through heat storing plate, sealant and shell are simultaneously electrically connected with the controller that shell is arranged in, the controller is also electrically connected with temperature feedback arrangement, the composite material of paraffin and expanded graphite is filled in the hole of heat storing plate, the utility model meets unit of the material as heat accumulation using paraffin and expanded graphite, the offer of heat is provided using the latent heat of its phase transformation to hand warmer, the heat that it is stored compared to the hand warmer of existing hot water type is more, and compared to chemical type or the knot of cell type Structure is simple, and durability is high, at low cost.

Description

A kind of novel hand warmer based on phase-change thermal storage

Technical field

The utility model relates to heat-storage technology field, specially a kind of novel hand warmer based on phase-change thermal storage.

Background technique

Hand warmer is a portable heating tool for resisting severe cold winter for warm hand, and principle is with physics and change Learn the automatic heating of principle development.Nowadays the hand warmer in market can be divided into three classes: one kind is electrically heated hot-water bottle, is added by electricity Hot water extremely boiling is for warming oneself, but the defect of such hand warmer is that temperature is too high after just powering off, and easily scald, heat preservation timeliness are short.One Class is warmed oneself by the heat that chemical reaction is released, and such hand warmer temperature can maintain 40 DEG C, but as the number used increases Add the efficiency of chemical reaction lower and lower, declines warming effect.In addition one kind is to pass through USB interface using lithium battery function Charging heating fever tablet is as heat source, but such hand warmer charging spent time is long, and cost is relatively also higher.For this purpose, providing one Novel hand warmer of the kind based on phase-change thermal storage.

Utility model content

The purpose of this utility model is to provide a kind of urban public environment multifunctional fire-fighting axes, to solve above-mentioned background The problem of being proposed in technology.

To achieve the above object, the utility model provides the following technical solutions: a kind of novel warm hand based on phase-change thermal storage Treasured, including fever tablet, heat storing plate, sealant and shell, the heat storing plate are wrapped on the outside of fever tablet, and the heat storing plate Outside is successively enclosed with sealant and shell, and the hand warmer further includes temperature feedback arrangement, the fever tablet tail portion connection Cable sequentially passes through heat storing plate, sealant and shell and is electrically connected with the controller that shell is arranged in, the controller also with Temperature feedback arrangement electrical connection, the heat storing plate are porous plate, and filled with paraffin and expansion stone in the hole of the heat storing plate The composite material of ink.

Preferably, the fever tablet is one of mica electric heating piece, ptc heater, resistance wire.

Preferably, the sealant is that the winding of one or both of aluminum foil and adhesive tape, copper foil tape is stacked on outside fever tablet Portion is formed.

Preferably, the quantity of the sealant is two layers.

Preferably, the material of the heat storing plate is one of ceramics, metal, glass.

Preferably, the heat storing plate is the porous plate of the honeycomb aluminium material of sheet, and quantity is two and is located at fever tablet Upper and lower two sides.

Preferably, the heat storing plate is the porous plate of honeycomb aluminium material, and the heat storing plate is by the first U-type groove and the 2nd U Type groove is spliced.

Preferably, it is round or heart-shaped or polygon porous plate that the heat storing plate, which is form, and the material of the shell For one of rubber, silica gel, leather.

Compared with prior art, the utility model has the beneficial effects that the utility model is using paraffin and expanded graphite Meet unit of the material as heat accumulation, the offer of heat is carried out to hand warmer using the latent heat of its phase transformation, compared to existing water The heat of its storage of the hand warmer of heat type is more, and its internal temperature is controlled by temperature feedback arrangement, meets paraffin It is liquid by Solid State Transformation, temperature elevating range is smaller, pressure change is low, safety with higher, and this is practical Novel is not to be related to chemically reacting using the latent heat of phase change of substance, and repeatability is high, and use cost is low, and in addition to this this is practical new Heat storing plate in type only as support frame, shape is not particularly limited, and can be prepared into various forms according to demand, full Convenient hand-held or other specific forms the demand of foot.

Detailed description of the invention

Fig. 1 is the external structure of the utility model；

Fig. 2 is the half-sectional view of the utility model；

Fig. 3 is the Structure explosion diagram of the utility model；

Fig. 4 is the sectional view of the Structure explosion diagram of the utility model；

Fig. 5 is the structural schematic diagram that the utility model goes out that hot plate is U-type groove.

In figure: in figure: 1, fever tablet, 2, heat storing plate, 3, sealant, 4, shell, 5, temperature feedback arrangement, 6, controller, 7, the first U-type groove, the 8, second U-type groove.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of novel hand warmer based on phase-change thermal storage, Including fever tablet 1, heat storing plate 2, sealant 3 and shell 4, the heat storing plate 2 is wrapped in 1 outside of fever tablet, and the heat accumulation The outside of plate 2 is successively enclosed with sealant 3 and shell 4, and offer device of the mica electric heating piece as heat, heating surface can be used Product is big and durability is good and at low cost, and mica electric heating piece insulating properties with higher can effectively improve the use of the present apparatus Electric safety, the hand warmer further include that (temperature feedback arrangement 5 as shown in Figure 2 can be located at sealant 3 to temperature feedback arrangement 5 Outer layer) 1 tail portion of fever tablet connection cable sequentially pass through heat storing plate 2, sealant 3 and shell 4 and be arranged in shell 4 On controller 6 be electrically connected, the controller 6 is also electrically connected with temperature feedback arrangement 5, and controller 6 can be controlled to fever tablet 1 Unlatching and disconnection, temperature feedback arrangement 5 can measure hand warmer internal temperature and temperature signal is fed back to controller 6, when Controller 6 automatically cuts off the power supply to fever tablet 1 when temperature is more than set temperature, prevents from overheating, temperature feedback arrangement 5 and control Device 6 processed has the open technical solution used at present, and its structure and principle are also not the technical characteristics of the utility model institute , therefore do not repeat them here；

The heat storing plate 2 is porous plate, and the honeycomb aluminum of existing manufacturing process relative maturity on the market can be used as branch Support skeleton structure (honeycomb aluminum is light-weight, it is thermally conductive it is fast, be unlikely to deform and to belong to metal plastic type good), and the heat storing plate The composite material of paraffin and expanded graphite is filled in 2 hole, paraffin is common industrial chemicals, and property is stablized, by solid State is changed into that the latent heat having when liquid is larger and its volume change amplitude very little, has according further to its different fusing point of type Change, fusing point can be selected in the utility model at 50 DEG C or so, so that good warm hand effect is provided, and present apparatus use It is the composite material of paraffin and expanded graphite, this material is current existing material, and it makes use of the high thermal conductivities of expanded graphite Property it is heated when making heating can be uniform, in addition the porous structure of expanded graphite can Adsorption Paraffin reduce the stream of the paraffin after fusing Dynamic property.

Specifically, the quantity of the sealant 3 is two layers, the sealant 3 is one of aluminum foil and adhesive tape, copper foil tape Or two kinds of windings are stacked on outside fever tablet 1 and are formed, sealant 3 makes to allow while sealing using the metal material of good heat conductivity The heat that phase transformation issues can be transmitted to outside as early as possible.

Specifically, the material of the heat storing plate 2 is one of ceramics, metal, glass, metal material more holds in contrast Easy moulding.

Specifically, the heat storing plate 2 is the porous plate of two sheets, and it is located at about 1 two sides of fever tablet, the system of this structure Simple process is made, production cost is low.In addition heat storing plate 2 can also be used is spliced by the first U-type groove 7 and the second U-type groove 8, this Sample can by fever tablet 1 it is fully wrapped around including, and provide the accommodation space of more phase-change materials.

Specifically, the heat storing plate 2 can be made round according to demand or heart-shaped or polygon porous plate, and described outer The material of shell 4 is one of rubber, silica gel, leather, and the structure inside hand warmer is wrapped up again, further increased by shell 4 The good silica gel material of sense of touch can be selected in safety.

Working principle: the fever tablet 1 of the present apparatus is connected external power supply by controller 6 and is heated, continuous heating process In, the composite material filled with paraffin and expanded graphite in the hole of heat storing plate 2 can be heated, and paraffin is being liquid by Solid State Transformation Phase transition process in can absorb a large amount of heat, when temperature feedback arrangement 5 detect reach determined temperature when, controller 6 cutting hair The heating power supply of backing 1, then the present apparatus can take use, and paraffin can be gradually converted into solid-state by liquid, can release heat It measures and passes through sealant 3 and shell 4 passes to outside.

In addition to preventing controller 6 from damaging, there is the case where continuous heating, the safety coefficient for improving the present apparatus can be outside The surface of shell 4 is coated with off-color material (color change interval of existing off-color material can be controlled according to demand in 20-70 degree range), To visually play suggesting effect, safety is further increased.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of novel hand warmer based on phase-change thermal storage, including fever tablet (1), heat storing plate (2), sealant (3) and shell (4), it is characterised in that: the heat storing plate (2) is wrapped on the outside of fever tablet (1), and the outside of the heat storing plate (2) is successively wrapped up There are sealant (3) and shell (4), the hand warmer further includes temperature feedback arrangement (5), fever tablet (1) the tail portion connection Cable sequentially passes through heat storing plate (2), sealant (3) and shell (4) and is electrically connected with the controller (6) being arranged on shell (4) It connects, the controller (6) is also electrically connected with temperature feedback arrangement (5), and the heat storing plate (2) is porous plate, and the heat storing plate (2) composite material of paraffin and expanded graphite is filled in hole.

2. a kind of novel hand warmer based on phase-change thermal storage according to claim 1, it is characterised in that: the fever tablet It (1) is one of mica electric heating piece, ptc heater, resistance wire.

3. a kind of novel hand warmer based on phase-change thermal storage according to claim 1, it is characterised in that: the sealant (3) it is stacked on outside fever tablet (1) and is formed for the winding of one or both of aluminum foil and adhesive tape, copper foil tape.

4. a kind of novel hand warmer based on phase-change thermal storage according to claim 3, it is characterised in that: the sealant (3) quantity is two layers.

5. a kind of novel hand warmer based on phase-change thermal storage according to claim 1, it is characterised in that: the heat storing plate (2) material is one of ceramics, metal, glass.

6. a kind of novel hand warmer based on phase-change thermal storage according to claim 5, it is characterised in that: the heat storing plate It (2) is the porous plate of the honeycomb aluminium material of sheet, and quantity is two and is located at fever tablet (1) two sides up and down.

7. a kind of novel hand warmer based on phase-change thermal storage according to claim 5, it is characterised in that: the heat storing plate It (2) is the porous plate of honeycomb aluminium material, and the heat storing plate (2) is spliced by the first U-type groove (7) and the second U-type groove (8).

8. a kind of novel hand warmer based on phase-change thermal storage according to claim 1, it is characterised in that: the heat storing plate It (2) be form is round or heart-shaped or polygon porous plate, and the material of the shell (4) is rubber, silica gel, in leather It is a kind of.