Digitizing plate antifreeze plate
Technical field
This utility model is related to Digitizing plate, especially relates to Digitizing plate antifreeze plate.
Background technology
Digitizing plate, also known as drawing board, drawing boards, hand drawing board etc., are one kind of computer entry device, typically by one
Block plank and a pressure sensi-tive pen composition.Digitizing plate is by magnetic field work, after connecting Digitizing plate, its plate face just has one layer of electromagnetism
, and time writer also can produce electromagnetic field by way of different.When the plate general work in Digitizing plate for the time writer, by meter
Calculate synergistic result between two kinds of magnetic fields judging running orbit and the positioning of time writer, big by computational EM waves
Little, thus producing different pressure sensitivity.
Digitizing plate in the market mainly utilizes passive wireless technologies and active radio technology.
The operation principle of active radio technology:Time writer battery power produces magnetic field, then the magnetic of the plate face of sum digit plate
Field interactions, and then produce different pressure sensitivity.However, this technology has disadvantages that:First, the electricity of battery be not constant not
Become, with the change of battery electric quantity, the magnetic field that time writer produces also can change;With the minimizing of battery electric quantity, the sense of product
Precision is answered to reduce, effect is worse and worse;2nd, battery, in the case of long-time power supply, easily can occur the phenomenon of leakage, this is not
Time writer only can be damaged, also can produce harm to human body;3rd, because time writer additionally creates magnetic field, the magnetic field radiation of product
Stronger;4th, it is unfavorable for environmental protection using battery;5th, because active radio technology needs to use battery, corresponding, time writer
Structure is difficult to reduce, the heavier-weight of time writer, is unfavorable for using for a long time.
The operation principle of passive wireless technologies:Digitizing plate is powered by computer USB interface, and the power of USB is constant, because
This, the magnetic field that the plate face of Digitizing plate produces is more constant.Meanwhile, the time writer of passive and wireless itself does not have power supply, and it is to utilize
Electromagnetic induction principle, absorbs the magnetic field of the plate face of Digitizing plate, and then savings energy shields transmission of electromagnetic signals to sensing, then sum digit
The magnetic field of the plate face of plate interacts and is operated.This technology has many good qualities, and first, the radiation of whole magnetic board is little, no
Line pen does not have extra magnetic field radiation;Secondly, do not require the use of battery, compare environmental protection;Furthermore, wireless pen is slim and graceful, and thickness is made by oneself;?
It is important that performance is highly stable, strong antijamming capability, stability is very good.
Knowable to the contrast of above two technical approach, passive wireless technologies have very big advantage, but, this technology is very
Easily affected by external magnetic field, and the plate face magnetic field of Digitizing plate is medium-high frequency alternating magnetic field, running in external environment is had
Metal object, can produce eddy-current loss on a metal object, consume plate face magnetic field, produce heat, so that time writer receives not
Electromagnetic signal to plate face.So, the Digitizing plate using passive wireless technologies must shield external magnetic field using NULL
Interference, simultaneously, it is to avoid external metallization environment consumes the magnetic field of plate face.
For passive wireless technologies, existing market is mainly used high magnetic permeability permalloy as NULL, this kind of material
Material processing difficulties, cost is very high, and, itself is metal material, will produce vortex, consume most plate during use
Face magnetic field, and then produce heat, lead to the reaction of product insensitive, Writing-painting effect is unsatisfactory.Meanwhile, in electronics instantly
Under the lightening background of product requirement, permalloy is difficult to lightening.
Therefore, it is necessary to study to NULL.
Utility model content
The purpose of this utility model is to provide that a kind of pcrmeability is high, product thickness is little, use during eddy-current loss low
Antifreeze plate.
To achieve these goals, this utility model adopts the following technical scheme that:
Digitizing plate antifreeze plate, particularly, including the first magnetic flakes layer and the second magnetic flakes layer;This first magnetic is thin
Lamella includes the first magnetic flakes that several are made up of high-permeability material, and adjacent first magnetic flakes are passed through binding agent and glued
Knot;This second magnetic flakes layer includes the second magnetic flakes that several are made up of low magnetic permeability, low resistivity material, and adjacent
Two magnetic flakes are bondd by binding agent;Binding agent is passed through in the side of this first magnetic flakes layer and the second magnetic flakes layer glues
Knot, opposite side is provided with the protection film layer for playing insulation protection effect.
Principle of the present utility model is as follows:
Antifreeze plate of the present utility model, its first magnetic flakes layer is made up of high-permeability material, thus can be in effective magnetic
In the case that performance meets requirement, the thickness of antifreeze plate is greatly reduced, and the second magnetic flakes layer adopts low magnetic permeability, low resistance
Rate material is made, effectively eliminate internal component transmitting high-frequency electromagnetic signal and external metallization environment to the plate in Digitizing plate
The interference that face magnetic field is caused.Additionally, the first magnetic flakes layer also can carry out blocking process, make to be formed on the first magnetic flakes layer
Several tiny cell blocks, the lines to reduce antifreeze plate eddy-current loss in use, when enabling Digitizing plate to use
Enough reduce true person's handwriting.
Above-mentioned binding agent can be the binding agent of liquid or thin-film state, between each first magnetic flakes, each second magnetic
Between thin slice, its cementation between the first magnetic flakes layer and the second magnetic flakes layer.
Above-mentioned high-permeability material refers under conditions of 100KHz, the pcrmeability of this high-permeability material 300~
In the range of 10000.
Above-mentioned low magnetic permeability material refers under conditions of 100KHz, and the pcrmeability of this high-permeability material is 0~1000
In the range of.
Said unitsization process and refer to that the steel rider using having reticulate structure extrudes the first magnetic flakes layer, make the first magnetic
Lamella fragmentation, forms several tiny cell blocks, that is, tiny thin slice fragment.In blocking is processed, the first magnetic is thin
Lamella maintains overall structure by binding agent, makes the first magnetic flakes layer after blocking still can keep overall structure in appearance.
And after processing through blocking, the size range of each tiny cell block (i.e. each thin slice fragment) of the first magnetic flakes layer is at 1 μm
In the range of~5cm, to ensure that each thin slice fragment can effectively reduce antifreeze plate eddy-current loss in use.
The outline of cell block can be circular or square.The outer contour shape of cell block and the reticulate pattern of steel rider
Structure is related.When the outline of cell block is rounded, above-mentioned size range is the diameter range of cell block;The foreign steamer of cell block
When exterior feature is square, above-mentioned size range is the long wide scope of cell block.
For producing above-mentioned Digitizing plate antifreeze plate, this utility model also provides the manufacture method of Digitizing plate antifreeze plate, bag
Include following steps:
A) make the high magnetic conductance piece of several structures in the form of sheets of high-permeability material, with low magnetic permeability, low-resistivity material
Material makes the low magnetic conductance piece of several structures in the form of sheets;
B) continuously cover the side of arbitrary high magnetic permeability piece with binding agent, form one piece of first magnetic flakes;Repeat this step
Suddenly, up to quantity N of the first magnetic flakes1Meet design requirement, N1≥1;
C it is) N to quantity1The first magnetic flakes bondd in the same direction, formed the first magnetic flakes layer;Now, this first
The top of magnetic flakes layer is exposed surface, and bottom is binding agent;
D) make binding agent continuously cover the side of arbitrary low magnetic permeability piece, form one piece of second magnetic flakes;Repeat this step
Suddenly, up to quantity N of the second magnetic flakes2Meet design requirement, N2≥1;
E it is) N to quantity2The second magnetic flakes bondd in the same direction, formed the second magnetic flakes layer;Now, this second
The top of magnetic flakes layer is exposed surface, and bottom is binding agent;
F) orlop of the superiors of the second magnetic flakes layer and the first magnetic flakes layer is bondd by binding agent;
G) in the superiors' bonding protective film of the first magnetic flakes layer, make antifreeze plate.
Above-mentioned steps B~C and step D~E no particular order.
The high magnetic conductance piece of above-mentioned structure in the form of sheets can be the higher sheet shaped piece of hardness or the relatively low coiled material of hardness, above-mentioned
The low magnetic conductance piece of structure can be the higher sheet shaped piece of hardness or the relatively low coiled material of hardness in the form of sheets.
Above-mentioned first magnetic flakes are bondd the side referring to that arbitrary first magnetic flakes are not covered with binding agent in the same direction
The side being coated with binding agent with another first magnetic flakes mutually bonds;After all first magnetic flakes bond in the same direction, it is located at
First magnetic flakes layer the top is the side that the first magnetic flakes are not covered with binding agent, as exposed surface, and is located at
One magnetic flakes layer bottom is the side that the first magnetic flakes are coated with binding agent.
Above-mentioned second magnetic flakes are bondd the side referring to that arbitrary second magnetic flakes are not covered with binding agent in the same direction
The side being coated with binding agent with another second magnetic flakes mutually bonds;After all second magnetic flakes bond in the same direction, it is located at
Second magnetic flakes layer the top is the side that the second magnetic flakes are not covered with binding agent, as exposed surface, and is located at
Two magnetic flakes layer bottom are the sides that the second magnetic flakes are coated with binding agent.
For reducing antifreeze plate eddy-current loss in use, in above-mentioned manufacture method, step can be increased after step B
B':It is N to quantity1The first magnetic flakes carry out blocking process;The first magnetic in step C, after blocking is processed
Thin slice is bondd in the same direction, forms the first magnetic flakes layer;The superiors of this first magnetic flakes layer are exposed surface, and orlop is
Binding agent.
In above-mentioned steps B', the first magnetic flakes are carried out with blocking process and refers to:First magnetic flakes are sent into unit
In machine, by the pressure roller that cooperates in unit machine and smooth roll, attrition crushing process is carried out to the first magnetic flakes, makes the first magnetic
Property thin slice fragmentation forms several small units blocks.This pressure roller is the steel rider with reticulate structure, and its reticulate pattern can be arbitrary shape
Shape, and the edge of reticulate pattern should be blade-like, so that chopping the first magnetic flakes.
In above-mentioned manufacture method, all material all can be selected for coiled material, and its operating process all can be with using retractable volume mode
Make, substantially reduce cost of labor, it is to avoid the waste of material, avoid personnel's directly contact product it is ensured that product appearance simultaneously.
This utility model has that structure is simple, excellent performance, antifreeze plate quality factor significantly improve, production process simply just
Sharp the advantages of.
Brief description
Fig. 1 is the schematic diagram of antifreeze plate in this utility model embodiment 1;
Fig. 2 is the partial enlarged drawing of A in Fig. 1;
Fig. 3 is the schematic diagram of cell block in this utility model embodiment 1;
Fig. 4 is the schematic diagram of antifreeze plate in this utility model embodiment 2;
Fig. 5 is the schematic diagram that in this utility model embodiment 3, first magnetic flakes blocking is processed.
Description of reference numerals:1- the first magnetic flakes layer;2- the second magnetic flakes layer;3- protection film layer;4- first magnetic
Thin slice;5- second magnetic flakes;6- binding agent;7- cell block;8- release paper;9- steel rider;10- smooth roll.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further described.
Embodiment 1:
Digitizing plate antifreeze plate as shown in Figures 1 to 3, this antifreeze plate includes the first magnetic flakes layer 1, the second magnetic flakes
Layer 2, protection film layer 3, wherein,
First magnetic flakes layer 1 is made up of first magnetic flakes 4, and this first magnetic flakes 4 is by high-permeability material
Make;Above-mentioned high magnetic permeability magnetic flakes form multiple tiny cell blocks after blocking process, so that antifreeze plate is being used
During quality factor (Q-value) significantly improve, the eddy-current loss that alternating magnetic field produces on antifreeze plate greatly reduces, time writer
The electromagnetic signal receiving strengthens, and writing effect is ideal;
In the present embodiment 1, this high-permeability material is amorphous band after heat treatment;And this amorphous band can be Fe
Base, Co base or Ni base amorphous band, the thickness of amorphous band is in 18~30 μ m;And after considering heat treatment, amorphous band
More crisp, and amorphous band is thinner is less susceptible to bond, amorphous band preferably uses 25 μm~30 μm of Fe base amorphous band;
Second magnetic flakes layer 2 is made up of second magnetic flakes 5, and this second magnetic flakes 5 is by low magnetic permeability, low electricity
Resistance rate material is made, and the resistivity of the second magnetic flakes 5 is lower, and it is high that antifreeze plate absorbs internal component transmitting in use
The effect of frequency electromagnetic waves is better, and the interference between components and parts is also less;This low magnetic permeability, low resistivity material can be without heat
The amorphous band processing or the material such as aluminium foil or Copper Foil;If low magnetic permeability, low resistivity material are not thermally treated amorphous ribbons
Material (Fe base, Co base or Ni base amorphous band), the second magnetic flakes 5 thickness is preferably in 18 μm~30 μ m;If low magnetic conductance
Rate, low resistivity material are aluminium foil or Copper Foil, and the second magnetic flakes 5 thickness is preferably in 30 μm~200 μ m;
In the present embodiment 1, protection film layer 3 can be set by PE (polyethylene) or PET (mylar) or PP (polypropylene screen) etc.
Lipid material is made, and the thickness of protection film layer 3 is in 1 μm~200 μ m.
In the present embodiment 1, double faced adhesive tape selected by binding agent 6.Double faced adhesive tape can be selected for rule in 1 μm~100 μm for the thickness range
Lattice, the thin-film state double faced adhesive tape with PET as base material being preferably 10 μm from thickness.As illustrated, in the present embodiment 1, the first magnetic
Property lamella 1 bottom be binding agent 6, i.e. double faced adhesive tape, and the bottom of the first magnetic flakes layer 1 and the second magnetic flakes layer
2 the top is bondd by double faced adhesive tape, and the bottom of second layer magnetic flakes layer is also binding agent 6, i.e. double faced adhesive tape, and is somebody's turn to do
The bottom of double faced adhesive tape is also fitted with release paper 8.
As shown in figure 3, in the present embodiment 1, the first magnetic flakes 4 are processed through blocking, and it is tiny that fragmentation forms several
Cell block 7.In the present embodiment 1, the size range of this cell block 7 is in 10 μm~500 μ m.The size range of cell block 7
In above-mentioned size range, contribute to antifreeze plate eddy-current loss in use and reduce further.And due to the first magnetic
The bottom of lamella 1 is provided with double faced adhesive tape, and in blocking processing procedure, double faced adhesive tape can't be fractured, therefore, through unit
After change is processed, the first magnetic flakes 4 still can keep overall structure in appearance.
The antifreeze plate being made up of above-mentioned first magnetic flakes layer 1, the second magnetic flakes layer 2, protection film layer 3, its thickness exists
In 35 μm~5000 μ m, the frequency that it is used is 50KHz~1GHz.
Embodiment 2:
The present embodiment 2 is with the difference of embodiment 1, in the present embodiment 2, as shown in figure 4, the first magnetic flakes layer
1 is made up of two the first magnetic flakes 4, and two neighboring first magnetic flakes 4 pass through binding agent 6, and that is, double faced adhesive tape bonds in the same direction;Appoint
One first magnetic flakes 4 are not covered with the side of binding agent 6 and another first magnetic flakes 4 are coated with the side phase of binding agent 6
Mutually bond, now, the first magnetic flakes layer 1 bottom be binding agent 6;
In the present embodiment 2, the second magnetic flakes 5 are made up of two the second magnetic flakes 5, two neighboring second magnetic flakes
5 bond in the same direction again by binding agent 6, i.e. double faced adhesive tape;Arbitrary second magnetic flakes 5 be not covered with the side of binding agent 6 with another
The side that one second magnetic flakes 5 are coated with binding agent 6 mutually bonds, now, the second magnetic flakes layer 2 the top be naked
Show up.
Embodiment 3:
For manufacturing the antifreeze plate of embodiment 1, the present embodiment 3 adopts following step:
A) amorphous band of rolling is carried out high-temperature heat treatment, to prepare high-permeability material;In high-temperature heat treatment process
In, the heat-treatment temperature range of amorphous amorphous band is 320 DEG C~750 DEG C, and the time of heat treatment is 30min~500min, and
Heat treatment process is completed using vacuum nitrogen stove;After high-temperature heat treatment, the rolling amorphous band of gained is high magnetic conductance piece;
B) by the amorphous band after high-temperature heat treatment, that is, the amorphous band of step A is arranged on make-up machine, subsequently, will
The release paper 8 of double faced adhesive tape side is peeled off and is pasted onto the side of amorphous band, and now, double faced adhesive tape opposite side still remains with release paper
8;In this step, double faced adhesive tape can be selected for that viscosity is higher and the product of thinner thickness, with convenient to operate;
C) amorphous band of step B is arranged in unit machine;In unit machine, there is the steel rider of reticulate structure and to it
Corresponding smooth roll carries out blocking process to amorphous band, obtains the first magnetic flakes layer 1:As shown in figure 5, amorphous band does not glue
Towards the steel rider 9 with reticulate structure, this steel rider 9 is provided with reticulate pattern, and the planform of reticulate pattern can for the side having double faced adhesive tape
Choose by design requirement, and the edge of reticulate pattern is in blade-like;The release paper 8 of the first magnetic flakes 4 is then towards smooth roll 10;Amorphous ribbon
When material passes through steel rider 9, steel rider 9 extrudes to amorphous band immediately, makes amorphous band fragmentation, forms several tiny units
Block 7;Now, the top of this first magnetic flakes layer 1 is exposed surface, and bottom is the double faced adhesive tape remaining with release paper 8;First
Magnetic flakes layer 1 is made up of 1 piece of first magnetic flakes 4, N1=1;
D) another volume amorphous band is arranged on make-up machine, subsequently, the release paper 8 of double faced adhesive tape side is peeled off and pasted
In the side of the amorphous band of this step, obtain the second magnetic flakes layer 2;Now, double faced adhesive tape opposite side still remains with release paper
8;In this step, double faced adhesive tape can be selected for that viscosity is higher and the product of thinner thickness, with convenient to operate;Now, this second magnetic flakes
The top of layer 2 is exposed surface, and bottom is the double faced adhesive tape remaining with release paper 8;Second magnetic flakes layer 2 is by 1 piece of second magnetic
Property thin slice 5 is constituted, N2=1;
E) release paper 8 of the first magnetic flakes layer 1 bottom is peeled off, and the top of the second magnetic flakes layer 2 is glued
It is attached to the bottom of the first magnetic flakes layer 1, the exposed surface of the second magnetic flakes layer 2 will paste the first magnetic flakes layer 1
Double faced adhesive tape on;
F) protecting film is combined in the top of the first magnetic flakes layer 1 by double faced adhesive tape, i.e. the first magnetic flakes layer 1
On exposed surface, form protection film layer 3;
G) according to required size shape, cut or die-cutting step F gained product, make Digitizing plate antifreeze plate.
Embodiment 4:
For manufacturing the antifreeze plate of embodiment 2, the present embodiment 4 adopts following step:
A) amorphous band of rolling is carried out high-temperature heat treatment, to prepare high-permeability material;In high-temperature heat treatment process
In, the heat-treatment temperature range of amorphous amorphous band is 320 DEG C~750 DEG C, and the time of heat treatment is 30min~500min, and
Heat treatment process is completed using vacuum nitrogen stove;After high-temperature heat treatment, the rolling amorphous band of gained is high magnetic conductance piece;
B) by the amorphous band after high-temperature heat treatment, that is, the amorphous band of step A is arranged on make-up machine, subsequently, will
The release paper 8 of double faced adhesive tape side is peeled off and is pasted onto the side of amorphous band, and now, double faced adhesive tape opposite side still remains with release paper
8;In this step, double faced adhesive tape can be selected for that viscosity is higher and the product of thinner thickness, with convenient to operate;
C) amorphous band of step B is arranged in unit machine;In unit machine, there is the steel rider of reticulate structure and to it
Corresponding smooth roll carries out blocking process to amorphous band, obtains 1 piece of first magnetic flakes 4:Amorphous band is not glued have two-sided
The side of glue is provided with reticulate pattern towards the steel rider 9 with reticulate structure, this steel rider 9, and the planform of reticulate pattern can be wanted by design
Ask selection, and the edge of reticulate pattern is in blade-like;Release paper 8 is then towards smooth roll 10;When amorphous band passes through steel rider 9, steel rider 9 is immediately
Amorphous band is extruded, makes amorphous band fragmentation, form several tiny cell blocks 7;
D) repeat step B~step C, obtains the 2nd piece of first magnetic flakes 4;
E) release paper 8 of arbitrary first magnetic flakes 4 is peeled off, and double faced adhesive tape and another first magnetic flakes 4 are naked
Show up and mutually bond, obtain the first magnetic flakes layer 1;Now, the top of this first magnetic flakes layer 1 be exposed surface, under
Hold the double faced adhesive tape for remaining with release paper 8;First magnetic flakes layer 1 is made up of 2 piece of first magnetic flakes 4, N1=2;
F) another volume amorphous band is arranged on make-up machine, subsequently, the release paper 8 of double faced adhesive tape side is peeled off and pasted
In the side of the amorphous band of this step, obtain the second magnetic flakes 5;Now, double faced adhesive tape opposite side still remains with release paper 8;
In this step, double faced adhesive tape can be selected for that viscosity is higher and the product of thinner thickness, with convenient to operate;Now, this second magnetic flakes layer 2
The top be exposed surface, bottom is the double faced adhesive tape remaining with release paper 8;Second magnetic flakes layer 2 is thin by 1 piece of second magnetic
Piece 5 is constituted, N2=1;
G) repeat step F, obtains the 2nd piece of second magnetic flakes 5;
H) release paper 8 of arbitrary second magnetic flakes 5 is peeled off, and double faced adhesive tape and another second magnetic flakes 5 are naked
Show up and mutually bond, obtain the second magnetic flakes layer 2;Now, the top of this second magnetic flakes layer 2 be exposed surface, under
Hold the double faced adhesive tape for remaining with release paper 8;Second magnetic flakes layer 2 is made up of 2 piece of first magnetic flakes 5, N2=2;
I) release paper 8 of the first magnetic flakes layer 1 bottom is peeled off, and the top of the second magnetic flakes layer 2 is glued
It is attached to the bottom of the first magnetic flakes layer 1, the exposed surface of the second magnetic flakes layer 2 will paste the first magnetic flakes layer 1
Double faced adhesive tape on;
J) protecting film is combined in the top of the first magnetic flakes layer 1 by double faced adhesive tape, i.e. the first magnetic flakes layer 1
On exposed surface, form protection film layer 3;
K) according to required size shape, cut or die-cutting step J gained product, make Digitizing plate antifreeze plate.
Describe know-why of the present utility model above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the restriction to this utility model protection domain can not be construed to by any way.Based on explanation herein,
Those skilled in the art does not need to pay performing creative labour and can associate other specific embodiment of the present utility model,
These modes fall within protection domain of the present utility model.