CN207304953U - Electric radiant Heating Film - Google Patents
Electric radiant Heating Film Download PDFInfo
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- CN207304953U CN207304953U CN201720910449.0U CN201720910449U CN207304953U CN 207304953 U CN207304953 U CN 207304953U CN 201720910449 U CN201720910449 U CN 201720910449U CN 207304953 U CN207304953 U CN 207304953U
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Abstract
The utility model provides a kind of Electric radiant Heating Film and preparation method thereof, wherein, the Electric radiant Heating Film includes：Conductive heating layer is divided into symmetrical first conductive part and the second conductive part by conductive heating layer, including middle gap zone, the middle gap zone；Conductor layer, the conductor layer includes some thick lines and some filaments, conductive exothermal layer surface is distributed in or in conductive heating layer, for connecting the positive and negative anodes of power supply, electric current is introduced into conductive heating layer, heating layer is divided into some conductive exothermal units being serially connected.The utility model can realize the heating area of bigger under same homalographic, increase the utilization rate of film；And more normal membranelle heating plate series connection can save 20% or so conducting wire layer material (generally silver paste or copper slurry), reduce production cost.
Description
Technical field
It the utility model is related to a kind of large scale heating film and preparation method thereof, more particularly to the heating membrane of electric heating.
Background technology
Existing large scale heating product such as graphene heating picture, large scale heating product or heating physical therapy class product etc. is main
The membranelle heating plate made of such as scheme such as patent No. CN105517215A, so-called membranelle, refers to the less heating plate of size,
Stock size is 134*81mm or so, and N multimembrane small pieces are cascaded by post-production and are made.In the prior art,
Why corresponding large scale heating film, one of those important factor are not made directly, if it is because directly according to patent
CN105517215A methods manufacture large scale heating product, can be because there are the serious feelings of conducting wire origin or beginning fever in long conducting wire
Condition, causes local temperature seriously higher, seriously affects security and the service life of product.
And another CN204987192U that refers to is by the way of the later stage assembles.Mainly have following deficiency：1st, add
The cosmetic injuries such as injured are easily caused in work；2nd, connect between membranelle and membranelle and have inevitable contact resistance, cause
Unnecessary heat producing losses, while influence the service life of product；3 at the same the uniformity in order to ensure integrally to generate heat, it is necessary to right
Resistance value per film small pieces carries out detailed division, just can guarantee that overall uniform effect of generating heat, and adds the complexity of flow.
Existing large scale heating product is not preferable to solve problem above；The utility model is then big by designing
The scheme of size series connection solves problem above.
Utility model content
For the prior art there are one or more of problem, the utility model provides a kind of large-sized Electric radiant Heating Film,
The drawbacks of avoiding multiple small size electric heating film cascades and the problem of overcome circuit line rapid wear in large scale film, and it is beautiful
It is generous；
The another object of the utility model is to provide the preparation method of above-mentioned Electric radiant Heating Film.
A kind of Electric radiant Heating Film, including：
Conductive heating layer is divided into symmetrical first conduction by conductive heating layer, including middle gap zone, the middle gap zone
Portion and the second conductive part；
Conductor layer, the conductor layer include some thick lines and some filaments, are distributed in conductive exothermal layer surface or are embedded in
In conductive heating layer, for connecting the positive and negative anodes of power supply, electric current is introduced into conductive heating layer, is divided into heating layer and is serially connected
Some conductive exothermal units；
Substrate, carrier of the substrate as conductive heating layer, is used to support conductive heating layer.
The one side of the utility model, the conductive heating layer uses electrically conductive film, such as ito thin film, graphene film, stone
Ink slurry coated film etc..
The one side of the utility model, the conductive heating layer use ito thin film or graphene film.
The one side of the utility model, the substrate use polymeric material, such as PET, PI, PE.
The one side of the utility model, the thickness of the basilar memebrane is 5-500 microns, preferably 125 microns.
The one side of the utility model, the conductor layer use metal film, such as strong material of silver paste, copper slurry electric conductivity
Material.
The one side of the utility model, the conducting film are divided at least six conductive exothermal units by conductor layer, and
It is uniformly and symmetrically distributed.
The one side of the utility model, the conductor layer include the first path, alternate path and diversion division, and described first
Path is distributed on the first conductive part, and the alternate path is distributed on the second conductive part, the diversion division by the first path and
Electric current on first conductive part is guided on alternate path and the second conductive part.In this way, electric current can be logical from first by diversion division
Road flows to alternate path, forms complete current loop.
The one side of the utility model, gap zone is mirror-symmetrical in is distributed in for first path and alternate path
On conductive heating layer.
Middle gap zone is that conductive heating layer is removed one using the means such as etching or stripping, forms broken belt；It can also use
The same two panels conductive exothermal layer material of size dimension is symmetrical arranged, and forms the conductive heating layer with middle gap zone.In this way, by
Open circuit is formd between the first conductive part and the second conductive part that separate, electric current can not be conducted in itself by conductive heating layer.
The one side of the utility model, the circuit of first path include：
Origin or beginning line part, the origin or beginning line part are " u " shape circuit, and conductive heating layer is stretched in the openend of " u " shape circuit
Upper to be arranged at the edge of conductive heating layer close to the position of middle gap zone, the closed end of " u " shape circuit, its closed end is outwards drawn
Go out, for being connected with power electrode；
At least one middle line portion, the middle line portion are " m " shape circuit, and the openend of " m " shape circuit, which is stretched to, leads
On electric heating layer conductive heating layer is arranged at close to the position of middle gap zone, including two openings, the closed end of " m " shape circuit
Edge；
At least one series circuit portion, for the conductive heating layer of scope involved by origin or beginning line part and the middle line portion of connecting
The conductive heating layer of involved scope, or two parts conductive heating layer for scope involved by adjacent middle line portion of connecting；
The origin or beginning line part is arranged side by side with the middle line portion, the origin or beginning line part and the medium line adjoined
Conductive heating layer between the portion of road is removed.So that the conductive exothermal layer segment of distribution origin or beginning line part and distribution middle line portion
Conductive exothermal layer segment between electric current can not be turned in itself by conductive heating layer.
The one side of the utility model, when first path contains two or more middle line portion, multiple " m " shape lines
Road is arranged side by side, and the conductive heating layer between two mutually adjoined " m " shape circuit is removed, and can not be turned on.
The one side of the utility model, the series circuit portion are a " u "-shaped circuit, and its one end has stretched into end line
The opening of " u " the shape circuit in portion, to the closed end close to origin or beginning line part, the other end stretches into middle line portion and origin or beginning line part
The opening for the side adjoined, to the closed end close to middle line portion；Alternatively, the both ends of " u "-shaped circuit are respectively protruding into two
Between mutually adjoin two of circuit portion openings, and stretch to the closed end in intermediate circuit portion.
The one side of the utility model, the origin or beginning line part include being arranged at the first thick of conductive heating layer edge
Line, by the first thick line both ends respectively draw first filament so that form opening towards middle gap zone "u"-shaped；It is described
Middle line portion includes being arranged at second thick line at conductive heating layer edge, the both ends by the second thick line and middle each extraction one
Second filament, forms opening towards " m " shape structure of middle gap zone；The series circuit portion includes being arranged on middle gap zone
3rd thick line, by the 3rd thick line both ends respectively draw one article of the 3rd filament so that form opening towards conductive heating layer edge " U "
Shape structure.
The one side of the utility model, first thick line and the second thick line width are equal and along conductive heating layer
Edge is arranged side by side.
The one side of the utility model, first filament, the second filament and the 3rd filament are parallel to each other.
The one side of the utility model, and between the 3rd filament and two article of first adjacent filament, the 3rd filament and phase
The distance between two adjacent second filaments are equal；And/or the distance between two first filaments are adjacent with middle line portion
The distance between two second filaments are equal.
The one side of the utility model, the diversion division include the 4th thick line of inverted " u "-shaped structure and by " u "-shapeds
Two bars of the 4th filaments extended respectively to the first path and alternate path that closed end is drawn.
The one side of the utility model, one article in the 4th filament is stretched into middle line portion from playing a terminal circuit portion
Farthest opening, to the closed end close to middle line portion, two article of the 4th filament mirror symmetry.
The one side of the utility model, the 4th thick line are equal with the width of the 3rd thick line.
The one side of the utility model, the 4th thick line, the 3rd thick line in series circuit portion of the inverted " u "-shaped structure are equal
It is arranged on gap zone, and there is a certain distance between the first conductive part, the second conductive part.
The one side of the utility model, further includes protective layer, and the protective layer is covered in conductive heating layer and conductor layer
On.
The one side of the utility model, the wide 281mm of Electric radiant Heating Film, it is 317 mm that length is most short；The conductive exothermal
The size of unit is 134*103mm.Length is according to the quantity using middle line, and middle line is more, and length is longer, common
Size in the case of one middle line portion is 317*281mm.
The preparation process of above-mentioned Electric radiant Heating Film,
Conductive heating layer is transferred in substrate；
Substrate/conductive heating layer is patterned, removes part conductive heating layer；
Conductor layer is made, circuit and the conductive heating layer of conductor layer overlap, and form complete fever circuit；And/or
Upper strata protective layer is bonded, cutting profile, forms complete large scale series connection heating film.
The one side of the utility model, the Patternized technique use laser-etching process and wet process, preferably swash
Photo-engraving process；
The one side of the utility model, the material for making conductor layer is silver paste, and silver paste thickness is 30-40 microns preferred, silver
It is baking oven or IR stove curing modes to starch baking condition, and the manufacture craft of conductive sandwich circuit uses silk-screen.
The utility model effect：
The utility model cleverly solves of the prior art various by the line arrangement design to conductor layer
Defect, has made the Electric radiant Heating Film of whole piece sheet, the wide 281mm of film, it is 317mm that length is most short；Length is according to using middle line
Quantity, middle line is more, and length is longer.By line arrangement design in large stretch of Electric radiant Heating Film of full wafer, in sheet
Electric radiant Heating Film on form the conductive exothermal units of multiple series connection, the size of conductive exothermal unit is 134*103mm.This practicality is new
The Electric radiant Heating Film of this large area of type has compared to the benefit of existing membranelle heating plate：(1) later stage can be saved to membranelle heating
Piece carries out the activity time of resistance value classification and assembled in series；(2) contact resistance that the series connection of membranelle heating plate can be avoided to bring, improves
The overall service life of overall fever even results lifting；(3), the utility model connects membranelle heating plate with simple
Design is compared, and can reduce the useless region between film and film, ensure that the heating area of bigger, improves the utilization rate of film；
(4) while compared with membranelle heating plate is directly connected, it can reduce by 20% or so conducting wire layer material (generally silver paste or copper slurry)
Usage amount, reduce production cost.
Meanwhile the heating effect of the utility model is more preferably.The heating product designed using the utility model, as shown in Figure 6
It is a heating film heating effect figure made using bilayer graphene as conductive heating layer, is connect with a film growing environment
Closely, the uniform performance of sheet resistance reaches very high effect.Referring specifically to Fig. 1, the intermembranous sheet resistance uniformity of double-layer graphite class, can control
Within the 15% of average, the control of temperature difference when product mean temperature can be spent for 40-50 in actual production mean temperature ±
In the range of 15%；The sheet resistance uniformity effects of ito thin film are more preferable, referring specifically to Fig. 2, shown 10% model that can be controlled in average
Enclose interior fluctuation.Temperature difference when also product mean temperature can be spent for 40-50 in actual production is controlled in mean temperature ± 15%
In the range of.The not heating region of preferably at least twice the utility model product occurs in series connection between normal membranelle heating plate.As it can be seen that
The utility model can realize the heating area of bigger under same homalographic, increase the utilization rate of film；And more normal membranelle heating
Piece series connection can save 20% or so conducting wire layer material (generally silver paste or copper slurry), reduce production cost.
Brief description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form the limitation to the utility model.In the accompanying drawings：
Fig. 1 is sheet resistance uniformity number of the utility model using bilayer graphene film as the Electric radiant Heating Film of conductive heating layer
According to；
Fig. 2 is the uniformity data of Electric radiant Heating Film sheet resistance of the utility model using ito thin film as conductive heating layer；
Fig. 3 is the utility model electric heating membrane structure diagram；
Fig. 4 is the Electric radiant Heating Film product design schematic diagram of one embodiment according to the present utility model；
Fig. 5 is the conductor layer patterning schematic diagram of the Electric radiant Heating Film of one embodiment according to the present utility model；
Fig. 6 is the current trend schematic diagram of conductor layer patterning shown in Fig. 5；
Fig. 7 is the line equivalent circuit diagram of conductor layer patterning shown in Fig. 5；
Fig. 8 is the decomposition diagram of conductor layer patterning shown in Fig. 5；
Fig. 9 is the decomposition diagram of the first path 21 in conducting wire layer pattern shown in Fig. 5；
Figure 10 is the structural relation schematic diagram between conducting wire layer pattern shown in Fig. 5 and conductive heating layer 1；
Figure 11 is the utility model another kind conductor layer patterning schematic diagram；
Figure 12 is the decomposition diagram of the first path 21 in the utility model another kind conducting wire layer pattern；
Figure 13 is the structure diagram of origin or beginning line part；
Figure 14 is the structure diagram in middle line portion；
Figure 15 is the structure diagram in series connection portion；
Figure 16 is the structure diagram of diversion division；
Figure 17 is a kind of flow diagram of the utility model electric heating membrane preparation method；
Figure 18 is another flow diagram of the utility model electric heating membrane preparation method；
Figure 19 is conductive heating layer etching pattern schematic diagram；
1- conductive heating layers, gap zone in 10-, the first conductive parts of 11-, the second conductive parts of 12-, 2- conductor layers, 21-
One path, 22- alternate paths, 23- diversion divisions, 201- origin or beginning line parts, 202- middle lines portion, 203- series connection portion, 202-1,
The openend of 202-2,202-3,202-4- middle line portion " m " shape structure, the first thick lines of 201A-, the first filaments of 201B-,
The second thick lines of 202A-, the second filaments of 202B-, the 3rd thick lines of 203A-, the 3rd filaments of 203B-, the 4th thick lines of 23A-, 23B-
Four filaments.
Embodiment
Hereinafter, some exemplary embodiments are simply just described.As one skilled in the art will recognize that
Like that, without departing from the spirit or scope of the present utility model, described reality can be changed by various different modes
Apply example.Therefore, attached drawing and description are considered essentially illustrative rather than restrictive.
In the description of the utility model, it is to be understood that term " center ", " center line " " longitudinal direction ", " transverse direction ", " length
Under degree ", " width ", " thickness ", " go up ", " ", " preceding ", " afterwards ", " left side ", " right side ", " heavily fortified point directly ", " level ", " top ", " bottom ", "
Interior ", " outside ", ", the orientation of the instruction such as ", " counterclockwise " or position relationship were to be closed based on orientation shown in the drawings or position clockwise
System, is for only for ease of and describes the utility model and simplified description, rather than the device or element of instruction or hint meaning are necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition,
Term " first ", " second " etc. are only used for description purpose, and it is not intended that instruction or hint relative importance or implicit finger
The quantity of bright indicated technical characteristic.Thus, defining the feature of " first ", " second " etc. can express or impliedly
Including one or more feature.In the description of the utility model, " multiple " are meant that two or more,
Unless otherwise specifically defined.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " be connected ", " connection " it should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection:Can mechanically connect or be electrically connected or can mutually communicate；It can be directly connected, can also be in
Between medium be indirectly connected, can be the interaction relationship of connection inside two elements or two elements.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature its " upper " or it "
Under " can directly be contacted including the first and second features, it is not direct contact but logical that can also include the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " be including the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature directly over second feature and oblique upper, or only
Represent that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component and setting of specific examples are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
Embodiment 1：
As shown in Figure 3,4, a kind of one embodiment of the utility model, there is provided Electric radiant Heating Film.
Concrete structure includes：Conductive heating layer 1, including middle gap zone 10, the middle gap zone 10 divide conductive heating layer
It is cut into symmetrical first conductive part, 11 and second conductive part 12；Conductor layer 2, the conductor layer include some thick lines and some thin
Line, is distributed in conductive exothermal layer surface or in conductive heating layer, for connecting the positive and negative anodes of power supply, electric current is introduced and is led
Electric heating layer, makes heating layer be divided into some conductive exothermal units being serially connected；Substrate 4, the substrate is as conductive exothermal
The carrier of layer, is used to support conductive heating layer；And protective layer 3.The conductive heating layer uses electrically conductive film, such as ito thin film, stone
Black alkene film, black lead wash coated film etc..It is preferred that use ito thin film or graphene film.Middle gap zone 10 is using etching or stripping
From etc. means by conductive heating layer remove one, formed broken belt, conductive heating layer 1 has been divided into two parts, i.e., first leads
Electric 11 and second conductive part 12 of portion；It can also be symmetrical arranged with the same two panels conductive exothermal layer material of size dimension, form tool
There is the conductive heating layer of middle gap zone.In this way, open circuit is formd between the first conductive part 11 and the second conductive part 12 that are spaced,
Electric current can not be conducted in itself by conductive heating layer.The substrate uses polymeric material, such as PET, PI, PE, and gross thickness is
5-500 microns, preferably 125 microns.The conductor layer uses metal film, such as strong material of silver paste, copper slurry electric conductivity, preferably silver-colored
Slurry.5-500 microns of the protective layer gross thickness, preferably 100 microns.
If Fig. 4,5,6, Fig. 4 are Electric radiant Heating Film product design schematic diagrames, corresponding, Fig. 5, Fig. 6, Fig. 7, Fig. 8 are the Electric radiant Heating Films
Conductive layer pattern structure diagram, current trend schematic diagram, equivalent circuit diagram, decomposition diagram.With reference to Fig. 8, the conducting wire
Layer includes the first path 21, alternate path 22 and diversion division 23, and first path 21 is distributed on the first conductive part 11, described
Alternate path 22 is distributed on the second conductive part 12, and the diversion division 23 sends out the first path 21 and its conductive of involved scope
Electric current on thermosphere part (i.e. the first conductive part 11) guides alternate path 22 and its conductive exothermal layer segment of involved scope into
On (i.e. the second conductive part 12).In this way, the first path and alternate path connect the positive and negative anodes of power supply respectively, such as the first path connects
Cathode, alternate path connection anode, electric current flow through the first path after being entered by the first path, then by diversion division from the first path
21 flow to alternate path 22, finally flow to anode, and the conductive layer formed by the first path, conductive part and alternate path can be formed
Complete current loop.First path 21 and alternate path 22 are distributed in conductive exothermal along middle gap zone 10 is mirror-symmetrical
On layer 1.Pattern that is symmetrical, including being etched away between first conductive part 11 and the second conductive part 12, is equally symmetrical.This
Utility model is by conductive heating layer (i.e. the first conductive part 11 between scope involved by scope involved by the first path and alternate path
And the second conductive heating layer between conductive part 12) be removed, i.e., on conductive heating layer one has been etched away along center line direction
One of fixed width degree, gap zone 10 in formation, so making the conductive exothermal layer segment of scope involved by the first path, (i.e. first is conductive
Portion 11) with alternate path involved by scope conductive exothermal layer segment (i.e. the second conductive part 12) be disconnection, electric current can not be direct
Turned on by conductive heating layer between the first conductive part and the second conductive part.
As shown in figure 9, the circuit of first path includes：
Origin or beginning line part 201, described end is " u " shape circuit, and the openend of " u " shape circuit is stretched on conductive heating layer
Close to the position of middle gap zone 10, the closed end of " u " shape circuit is arranged at the edge of conductive heating layer, its closed end is outwards drawn
Go out, for being connected with power electrode；
At least one middle line portion 202, the middle line portion are " m " shape circuit, and the openend of " m " shape circuit is stretched to
Set on conductive heating layer close to the position of middle gap zone 10, including two openings 202-1,202-2, the closed end of " m " shape circuit
It is placed in the edge of conductive heating layer 1；
At least one series circuit portion 203, conductive heating layer and medium line for scope involved by origin or beginning line part of connecting
The conductive heating layer of scope involved by the portion of road, or two parts conductive exothermal for scope involved by adjacent middle line portion of connecting
Layer.The circuit of conductor layer 2 is distributed across on conductive heating layer 1, and the distribution of broad sense, is not limited to cover type in distribution here
Facet.Both included the modes such as coating to be covered on 1 surface of conductive heating layer, and also included being overlapped on conductive exothermal layer surface, such as one
A little filaments for needing to turn on comprehensively with conductive heating layer, in order to make conducting wire is more stable to be combined with conductive heating layer 1, often will
The position of the conductive heating layer conductor wiring etches away a line, this line is thin in itself compared with institute's cloth conducting wire, such conducting wire be with
Conductive heating layer surface treatment overlap joint.Further include in conductive heating layer 1, in the conductive exothermal layer segment being such as removed
Some conducting wires of cloth, and these conducting wires with conductive heating layer without being connected." involved scope " refers to that a part of circuit is enclosed herein
Into have definite shape, the scope of area；Herein " conductive heating layer of involved scope " then refer to with definite shape,
" involved scope " corresponding partially electronically conductive heating layer of area.Such as：Origin or beginning line part 201 stretches to conductive exothermal for openend
Close to position " u " shape circuit of middle gap zone 10 on layer, its involved scope is then that the shape surrounded by " u " is square, has one
Determine the scope of area, and the conductive heating layer side of its involved scope is " u " can cover or surround there is certain area
Square partially electronically conductive heating layer.
As shown in Figure 10, the origin or beginning line part 201 is arranged side by side with the middle line portion 202, described end line
Conductive heating layer between portion 201 and the middle line portion 202 adjoined is removed, and can not be turned on.In being enclosed in Figure 10
Part, the conductive exothermal layer segment between origin or beginning line part 201 and middle line portion 202 is removed, two-part conductive hair
Thermosphere is to disconnect, and electric current directly can not flow directly into centre from the conductive exothermal layer segment of scope involved by origin or beginning line part 201
The conductive exothermal layer segment of scope involved by line part 202.With reference to current trend figure (shown in Fig. 6), origin or beginning line part 201 connects just
Pole, current direction origin or beginning line part 20, since origin or beginning line part 201 and middle line portion 202 are to disconnect, and middle conduction
Heating layer is etched away, the electric current in origin or beginning line part 201, passes through conductive heating layer flow direction series connection involved by origin or beginning line part 201
Line part 203, series circuit portion 203 introduce electric current involved by middle line portion 202 on the conductive heating layer of scope.
As shown in Figure 11,12, the conductor layer line pattern structure with two middle line portions 202 is shown.Described
One path 21 can contain two and more middle line portions 202, and at this time, multiple " m " shape circuits are arranged side by side.Referring to figure
Shown in 12, two middle line portions include 4 openings 202-1,202-2,202-3,202-4 altogether.Referring to Figure 11 centre circle A, B, remove
Conductive heating layer between " u " the shape circuit 201 of origin or beginning line part and " m " the shape circuit 202 in middle line portion needs to be carved
Eating away, the conductive heating layer between two " m " the shape circuits 202 mutually adjoined are also required to be removed, can not turn on.
With reference to shown in Fig. 9,10,11,12, the series circuit portion 203 is a " u "-shaped circuit, and its one end stretches into origin or beginning
The opening of " u " shape circuit of line part 201, to the closed end close to origin or beginning line part 201, the other end stretches into middle line portion
The opening 202-1 of 202 sides adjoined with origin or beginning line part 201, to the closed end close to middle line portion 202；Alternatively, " U "
The both ends of shape circuit are respectively protruding into mutually adjoin two openings 202-2, the 202-3 in two intermediate circuit portions, and stretch to centre
The closed end in circuit portion 202.
Below to the highly preferred structural form of each line part and its between relation carry out detailed deciphering.
The concrete structure of each line part as shown in Figure 13,14,15,16, with reference to Fig. 5 and Figure 12.The origin or beginning line part
201 include being arranged at the first thick line 201A at conductive heating layer edge, respectively drawn by the first thick line 201A both ends it is one first thin
Line 201B, so as to form opening towards the "u"-shaped of middle gap zone 10；The middle line portion 202 includes being arranged at conduction
The second thick line 202A at heating layer edge, the both ends by the second thick line 202A and middle respectively one the second filament 202B of extraction, structure
Into opening towards " m " shape structure of middle gap zone 10；The series circuit portion 203 includes the 3rd be arranged on middle gap zone 10
Thick line 203A, by the 3rd thick line 203A both ends respectively draw one article of the 3rd filament 203B, so as to form opening towards conductive heating layer
The "u"-shaped at edge.The diversion division 23 includes the 4th thick line 23A of inverted " u "-shaped structure and is drawn by " u "-shaped closed end
The 4th filament 23B that two articles gone out extend to the first path 21 and alternate path 22 respectively.The 4th thick line 23A in diversion division
Can also be the structure that square etc. is widened, preferred inverted " u "-shaped structure.One article in the 4th filament 23B is stretched into medium line
The opening 202-2 (Fig. 9,10) or 202-4 (Figure 11,12) farthest from terminal circuit portion is played in road portion 202, extremely close to middle line
The closed end in portion 202, two article of the 4th filament 23B mirror symmetry.
With reference to current trend figure (shown in Fig. 6)：Electric current flows into two the first filament 201B from the first thick line 201A；Passing through
Conductive heating layer is pooled to series circuit portion 203, from a 3rd filament 203B being placed in inside origin or beginning line part 201, line mistake
3rd thick line 203A, another 3rd filament 203B flow into the conductive exothermal layer segment in the range of middle line portion 202；Then,
Electric current from the 3rd filament 203B in middle line portion 202 by conductive heating layer respectively to the second filament 202B rows of both sides
Walk, the 4th filament 23B of conductive part 23 is finally pooled to by the second thick line 202A；Pass through the 4th thick line 23A and another again
4th filament 23B, eventually flows to alternate path 22；21 contrast of the current trend of alternate path 22 and the first path, so that
Electric current has flowed to anode by cathode, forms complete current loop.
From the point of view of electric heating film for heating unit, origin or beginning line part 201 completes a heat-generating units；One middle line portion
202 complete two heat-generating units；Wherein the second thick line 202A plays the role of two heat-generating units electric currents of connecting, series line
The heat-generating units electric current that the heat-generating units electric current completed in string end line portion 201 is played in road portion 203 and middle line portion 202 completes
Effect.Diversion division 23 can be reduced by the connection structure of slice+wide bar+slice in the degree for ensureing overall heating effect
The dosage of conducting wire layer material.
In order to make electric heating film for heating more uniform, service life is longer, as the further preferred solution of the present embodiment, institute
It is equal with the second thick line 202A width and be arranged side by side along the edge of conductive heating layer 1 to state the first thick line 201A.Described first
Filament 201B, the second filament 202B and the 3rd filament 203B are parallel to each other.And the 3rd filament 203B and adjacent two article first thin
Between line 201B, the 3rd filament 203B it is equal with the distance between two article of second adjacent filament 202B.In order to realize fever more
What is added is uniform, between the distance between two first filament 201B two second filament 202B adjacent with middle line portion away from
From equal.The 4th thick line 23A is equal with the width of the 3rd group of line 203A.
Further, the 4th thick line 23A of the inverted " u "-shaped structure, the 3rd thick line 203A in series circuit portion are embedded in
The position (being arranged on middle gap zone 10) that conductive heating layer is removed, and with the first conductive part 11, the second conductive part 12 it
Between there is a certain distance, the conductive material for conductive heating layer of getting along well is directly connected to.Only the 4th filament 23B and the 3rd filament
203B is connected with conductive heating layer.4th thick line 23A of the inverted " u "-shaped structure is on middle gap zone 10, and " U " therein is opened
Mouth end can to the left, can be to the right.
In order to preferably realize the purpose of this utility model, the first thick line 201A and the second thick line 201A be not also with leading
Electric heating layer 1 is directly connected to, and the conductive heating layer of its position all etches away, the first filament 201B, the second filament 202B,
3rd filament 203B and the conductive exothermal layer segment of the 4th filament 23B positions are etched away, that is, the line width etched away compared with
Corresponding filament line width is small, each filament is in conductive heating layer and overlaps, rather than filament is completely covered on and leads
On electric heating layer.Such benefit is to make the engagement of conductor layer and conductive heating layer even closer firmly, it is not easy to displacement occurs
Deformed with circuit.
The wide 281mm of Electric radiant Heating Film, it is 317mm that length is most short；The size of the conductive exothermal unit is 134*103mm.
Length is according to the quantity using middle line, and middle line is more, and length is longer, in the case of a middle line portion is commonly used
Size is 317*281mm.
The utility model cleverly solves of the prior art various by the line arrangement design to conductor layer
Defect, has made the Electric radiant Heating Film of whole piece sheet, the wide 281mm of film, it is 317mm that length is most short；Length is according to using middle line
Quantity, middle line is more, and length is longer.By line arrangement design in large stretch of Electric radiant Heating Film of full wafer, in sheet
Electric radiant Heating Film on form the conductive exothermal units of multiple series connection, the size of conductive exothermal unit is 134*103mm.This practicality is new
The Electric radiant Heating Film of this large area of type has compared to the benefit of existing membranelle heating plate：(1) later stage can be saved to membranelle progress
Resistance value is classified and the activity time of assembled in series；(2) contact resistance that the series connection of membranelle heating plate can be avoided to bring, improves overall
The service life for even results lifting entirety of generating heat；(3), the utility model and the simple design phase that membranelle heating plate is connected
Than that can reduce the useless region between film and film, ensure that the heating area of bigger, improve the utilization rate of film；(4) at the same time
Compared with membranelle heating plate is directly connected, the use of 20% or so conducting wire layer material (generally silver paste or copper slurry) can be reduced
Amount, reduces production cost.
Meanwhile the heating effect of the utility model is more preferably.The heating product designed using the utility model, as shown in Figure 6
It is a heating film heating effect figure made using bilayer graphene as conductive heating layer, is connect with a film growing environment
Closely, the uniform performance of sheet resistance reaches very high effect.Referring specifically to Fig. 1, the intermembranous sheet resistance uniformity of double-layer graphite class, can control
Within the 15% of average, the control of temperature difference when product mean temperature can be spent for 40-50 in actual production mean temperature ±
In the range of 15%；The sheet resistance uniformity effects of ito thin film are more preferable, referring specifically to Fig. 2, shown 10% model that can be controlled in average
Enclose interior fluctuation.Temperature difference when also product mean temperature can be spent for 40-50 in actual production is controlled in mean temperature ± 15%
In the range of.The not heating region of preferably at least twice the utility model product occurs in series connection between normal membranelle.As it can be seen that this practicality
New Energy realizes the heating area of bigger under same homalographic, increases the utilization rate of film；And more normal membranelle series connection can save
20% or so conducting wire layer material (generally silver paste or copper slurry), reduces production cost.
Embodiment 2：
Present embodiments provide a kind of preparation method of big size graphene heating film, the product first according to Fig. 4
Overall dimensions and resistance value requirement, design conductor layer patterning as shown in Fig. 5.
Shown in Figure 17, big size graphene heating film technological process is as follows：
1) 125 microns of PET is selected as substrate；
2) two layers of graphene film of basad upper transfer；
3) whole graphene film is patterned by laser direct-writing, makes the graphene quilt as lead connecting region
Remove, expose substrate film surface (such as Figure 19, black are removing region)；
4) silver paste conducting wire is printed, silver paste is overlapped with graphene surface, forms complete heating circuit；
5) optical cement is bonded, cuts shape, you can form complete large scale heating film.
Embodiment 3：
A kind of preparation method of large scale ITO heating films is present embodiments provided, product is outer first according to Fig. 4
Molded dimension and resistance value requirement, it is as shown in Figure 5 to design conductor layer patterning.
Shown in Figure 18, large scale ITO heating film technological processes are as follows：
1) 50 microns thick of ITO conductive films are chosen as substrate+conductive heating layer；
2) whole ito thin film is patterned by laser direct-writing, makes to be eliminated as the ITO of lead connecting region,
Expose substrate film surface (such as Figure 19, black are removing region)；
3) silver paste conducting wire is printed, silver paste is overlapped with ITO surfaces, forms complete heating circuit；
4) optical cement is bonded, cuts shape, you can form complete large scale heating film.
Embodiment 4：
A kind of preparation method of large scale ITO heating films is present embodiments provided, product is outer first according to Fig. 4
Molded dimension and resistance value requirement, it is as shown in Figure 5 to design conductor layer patterning.
Shown in Figure 18, large scale ITO heating film technological processes are as follows：
1) 25 microns thick of ITO conductive films are chosen as substrate+conductive heating layer；
2) whole ito thin film is patterned by laser direct-writing, makes to be eliminated as the ITO of lead connecting region,
Expose substrate film surface (such as Figure 19, black are removing region)；
3) silver paste conducting wire is printed, silver paste is overlapped with ITO surfaces, forms complete heating circuit；
4) optical cement is bonded, cuts shape, you can form complete large scale heating film.
Embodiment 5：
Present embodiments provide a kind of preparation method of big size graphene heating film, the product first according to Fig. 4
Overall dimensions and resistance value requirement, design conductor layer patterning as shown in Fig. 5.
Shown in Figure 17, big size graphene heating film technological process is as follows：
1) 25 microns of PET is selected as substrate；
2) one layer graphene film of basad upper transfer；
3) whole graphene film is patterned by laser direct-writing, makes the graphene quilt as lead connecting region
Remove, expose substrate film surface (such as Figure 19, black are removing region)；
4) silver paste conducting wire is printed, silver paste is overlapped with graphene surface, forms complete heating circuit；
5) optical cement is bonded, cuts shape, you can form complete large scale heating film.
Embodiment 6：
Present embodiments provide a kind of preparation method of big size graphene heating film, the product first according to Fig. 4
Overall dimensions and resistance value requirement, design conductor layer patterning as shown in Fig. 5.
Shown in Figure 17, big size graphene heating film technological process is as follows：
1) 75 microns of PI is selected as substrate；
2) basad surface transferase 45 layer graphene；
3) whole graphene film is patterned by laser direct-writing, makes the graphene quilt as lead connecting region
Remove, expose substrate film surface (such as Figure 19, black are removing region)；
4) silver paste conducting wire is printed, silver paste is overlapped with graphene surface, forms complete heating circuit；
5) optical cement is bonded, cuts shape, you can form complete large scale heating film.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.Where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (24)
1. a kind of Electric radiant Heating Film, including：
Conductive heating layer, including middle gap zone, the middle gap zone by conductive heating layer be divided into symmetrical first conductive part and
Second conductive part；
Conductor layer, the conductor layer include some thick lines and some filaments, are distributed in conductive exothermal layer surface or embedded in conduction
In heating layer, for connecting the positive and negative anodes of power supply, electric current is introduced into conductive heating layer, if making heating layer be divided into what is be serially connected
Dry conductive exothermal unit.
2. Electric radiant Heating Film according to claim 1, it is characterised in that the conductive heating layer uses electrically conductive film.
3. Electric radiant Heating Film according to claim 2, it is characterised in that the electrically conductive film is ito thin film, graphene film or stone
Ink slurry coated film.
4. Electric radiant Heating Film according to claim 1, it is characterised in that the conductor layer uses metal film.
5. Electric radiant Heating Film according to claim 1, it is characterised in that the conductive heating layer is divided at least six by conductor layer
A conductive exothermal unit, and be uniformly and symmetrically distributed.
6. according to the Electric radiant Heating Film any one of claim 1-5, it is characterised in that the conductor layer include the first path,
Alternate path and diversion division, first path are distributed on the first conductive part, and the alternate path is distributed in the second conductive part
On, the diversion division guides the electric current of the first path and the first conductive part on alternate path and the second conductive part into.
7. Electric radiant Heating Film according to claim 6, it is characterised in that first path and alternate path the gap zone mirror in
Face is symmetrically distributed on conductive heating layer.
8. Electric radiant Heating Film according to claim 6, it is characterised in that first path includes：
Origin or beginning line part, the origin or beginning line part are " u " shape circuit, and the openend of " u " shape circuit, which is stretched on conductive heating layer, to be connect
The position of gap zone, the closed end of " u " shape circuit are arranged at the edge of conductive heating layer near, its closed end is outwards drawn, and use
It is connected in power electrode；
At least one middle line portion, the middle line portion are " m " shape circuit, and conductive hair is stretched in the openend of " m " shape circuit
On thermosphere the side of conductive heating layer is arranged at close to the position of middle gap zone, including two openings, the closed end of " m " shape circuit
Edge；
At least one series circuit portion, for connecting involved by the conductive heating layer of scope involved by origin or beginning line part and middle line portion
The conductive heating layer of scope, or two parts conductive heating layer for scope involved by adjacent middle line portion of connecting；
The origin or beginning line part is arranged side by side with the middle line portion, the origin or beginning line part and the middle line portion adjoined
Between conductive heating layer be removed.
9. Electric radiant Heating Film according to claim 8, it is characterised in that first path contains two or more middle line portion
When, multiple " m " shape circuits are arranged side by side, and the conductive heating layer between two mutually adjoined " m " shape circuit is removed.
10. Electric radiant Heating Film according to claim 8, it is characterised in that the series circuit portion is a " u "-shaped circuit, its
The opening of " u " shape circuit of origin or beginning line part is stretched into one end, and to the closed end close to origin or beginning line part, the other end stretches into medium line
The opening for the side that road portion adjoins with origin or beginning line part, to the closed end close to middle line portion；Alternatively, the two of " u "-shaped circuit
End is respectively protruding into mutually adjoin two openings in two intermediate circuit portions, and stretches to the closed end in intermediate circuit portion.
11. Electric radiant Heating Film according to claim 8, it is characterised in that the origin or beginning line part includes being arranged at conductive exothermal
First thick line at layer edge, by the first thick line both ends respectively draw first filament, so as to form opening towards middle gap zone
"u"-shaped；The middle line portion include be arranged at conductive heating layer edge the second thick line, by the second thick line both ends and
It is middle respectively to draw second filament, opening is formed towards " m " shape structure of middle gap zone；The series circuit portion includes setting
One article of the 3rd filament is respectively drawn in the 3rd thick line on middle gap zone, by the 3rd thick line both ends, so as to form opening towards conduction
The "u"-shaped at heating layer edge.
12. Electric radiant Heating Film according to claim 11, it is characterised in that first thick line it is equal with the second thick line width and
It is arranged side by side along the edge of conductive heating layer.
13. Electric radiant Heating Film according to claim 11, it is characterised in that first filament, the second filament and the 3rd filament
It is parallel to each other.
14. Electric radiant Heating Film according to claim 11, it is characterised in that the 3rd filament and two article of first adjacent filament it
Between, the 3rd filament it is equal with the distance between two article of second adjacent filament.
15. Electric radiant Heating Film according to claim 11, it is characterised in that the distance between two first filaments and middle line
The distance between two adjacent second filaments of portion are equal.
16. according to claim 7-15 any one of them Electric radiant Heating Films, it is characterised in that the diversion division includes inverted " u "-shaped knot
4th thick line of structure and drawn from " u "-shaped closed end two articles extend the 4th thin to the first path and alternate path respectively
Line.
17. Electric radiant Heating Film according to claim 8, it is characterised in that the diversion division the including inverted " u "-shaped structure the 4th is thick
Line and two bars of the 4th filaments extended respectively to the first path and alternate path drawn from " u "-shaped closed end, the described 4th
One in filament is stretched into opening farthest from terminal circuit portion is played in middle line portion, the extremely closed end close to middle line portion,
Two article of the 4th filament mirror symmetry.
18. Electric radiant Heating Film according to claim 11, it is characterised in that the diversion division includes the 4th of inverted " u "-shaped structure
Thick line and two bars of the 4th filaments extended respectively to the first path and alternate path drawn from " u "-shaped closed end, described the
Four thick lines are equal with the width of the 3rd thick line.
19. Electric radiant Heating Film according to claim 11, it is characterised in that the diversion division includes the 4th of inverted " u "-shaped structure
Thick line and two bars of the 4th filaments extended respectively to the first path and alternate path drawn from " u "-shaped closed end, it is described fall
The 4th thick line, the 3rd thick line in series circuit portion of "u"-shaped are arranged on middle gap zone, and with the first conductive part,
There is a certain distance between two conductive parts.
20. Electric radiant Heating Film according to claim 1, it is characterised in that further include substrate, the substrate is as conductive heating layer
Carrier, be used to support conductive heating layer；Protective layer is further included, the protective layer is covered on conductive heating layer and conductor layer.
21. Electric radiant Heating Film according to claim 20, it is characterised in that the substrate uses polymeric material.
22. Electric radiant Heating Film according to claim 20, it is characterised in that the thickness of the substrate is 5-500 microns.
23. Electric radiant Heating Film according to claim 20, it is characterised in that the thickness of the substrate is 125 microns.
24. Electric radiant Heating Film according to claim 1, it is characterised in that the wide 281mm of Electric radiant Heating Film, length is most short to be
317mm；The size of the conductive exothermal unit is 134*103mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720910449.0U CN207304953U (en) | 2017-07-25 | 2017-07-25 | Electric radiant Heating Film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720910449.0U CN207304953U (en) | 2017-07-25 | 2017-07-25 | Electric radiant Heating Film |
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| Publication Number | Publication Date |
|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107567116A (en) * | 2017-07-25 | 2018-01-09 | 无锡格菲电子薄膜科技有限公司 | Electrothermal film and preparation method thereof |
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2017
- 2017-07-25 CN CN201720910449.0U patent/CN207304953U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107567116A (en) * | 2017-07-25 | 2018-01-09 | 无锡格菲电子薄膜科技有限公司 | Electrothermal film and preparation method thereof |
| CN107567116B (en) * | 2017-07-25 | 2023-07-18 | 无锡格菲电子薄膜科技有限公司 | Electrothermal film and preparation method thereof |
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