CN85202831U - Printed electric resistance - Google Patents
Printed electric resistance Download PDFInfo
- Publication number
- CN85202831U CN85202831U CN 85202831 CN85202831U CN85202831U CN 85202831 U CN85202831 U CN 85202831U CN 85202831 CN85202831 CN 85202831 CN 85202831 U CN85202831 U CN 85202831U CN 85202831 U CN85202831 U CN 85202831U
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- resistance
- dielectric substrate
- layer
- adhesive
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Abstract
The utility model relates to a printed electric resistance. The coating materials which are mixed by conducting particles, adhesives and diluting agents together are coated on an insulating substrate according to a certain figure to form a resistive layer, and a metal terminal is formed on the suitable position of the figure. The structure of the printed electric resistance can be used in electronic circuits and power circuits, and can also be used as a power converter.
Description
The present invention relates to a kind of novel resistance and manufacture method and purposes, more specifically say so about a kind of resistance device that adopts printing process to make, the manufacture method of this device, and the application of this device in electronic circuit and power circuit.
In prior art, it is comparatively general utilizing carbon granule to make components and parts such as resistance and electrode as resistance material, the resistor that constitutes with carbon film for example, but all be to make discrete component and have its specific three-dimensional structure generally.
In prior art, printed circuit board (PCB) has obtained using widely in electronic circuit, but mainly is the wiring of carrying out plain conductor in this class is used.In thick film circuit, also adopt mode of printing to make resistive element in the circuit etc., but thick film technology only is applied in the microelectronic circuits.
In addition, in electric energy-thermal energy conversion device in prior art, the general metallic resistance silk that adopts is as energy conversion elements, but metallic resistance silk amount of localized heat when work is very high, the electricity of metallic resistance silk-thermic devices general heating is inhomogeneous, therefore if seek out then complex structure of the even parts that heat of large tracts of land, the price of metallic resistance silk is also very high simultaneously.
Main purpose of the present invention is to utilize conductive particle, as main resistance material, mixes suitable adhesive as carbon granule etc., allocates with the suitable dilution agent and makes coating, adopts method of printing to make electric resistance structure by certain figure on dielectric substrate.
Another object of the present invention provides a kind of coating that utilizes conductive particle, adhesive and diluent to be made into, and adopts the method for printing, spraying or dipping, makes the printed resistor method according to predetermined figure on dielectric substrate.
A further object of the present invention is the composition by suitable allotment coating, reasonably design the shape of resistance pattern and dielectric substrate, can be made into have different structure, the printed resistor of resistance, power, withstand voltage and heat-resisting parameter, to satisfy the application in the different field such as electronic circuit, power circuit and electric energy-thermal power transfer.
The primary raw material of making printed resistor of the present invention is:
Conductive particle with high resistivity, as carbon granule (graphite powder, carbon dust), conductive compound powder and various metal dust below are referred to as conductive particle;
With the adhesive of above-mentioned conductive particle good bond, as resinae adhesive, pitch, plastics, waterglass, printing ink etc.;
Above-mentioned conductive particle and adhesive are deployed into the diluent of printing coatings, can select different diluents for use according to different adhesives, as water, gasoline and various chemical solvent;
Bear above-mentioned coating and form the dielectric substrate of the resistance pattern of definite shape thereon, as cardboard, plastics, pottery, asbestos board, glass mat, plasterboard, plank, dry goods etc.;
Can on the suitable position of resistance pattern, pick out metal joint in case of necessity;
After resistance pattern is made, can on its one or both sides, cover the superficial layer that can reach insulation, sealing and/or decorative effect by the difference requirement, as plastic film, insulating varnish, glass fabric etc.
The method that the present invention makes printed resistor comprises the steps:
A) above-mentioned conductive particle, adhesive, diluent are allocated according to a certain percentage made coating together.Conductive particle can adopt independent a kind of material, as carbon dust, also can adopt the mixing of several variable grains, as mix the little metal powder in carbon dust.Change the composition of conductive particle or the resistivity that the ratio of conductive particle in coating will change the final resistance pattern that forms.The effect of adhesive mainly is to guarantee that conductive particle can be bonded on the dielectric substrate securely, and the ratio of adhesive in coating also influences the resistivity of the resistance pattern of final formation.The effect of diluent mainly is to guarantee that the dilution factor of coating can satisfy the requirement of selected printing process, diluent finally will all vapor away, therefore it does not directly influence the resistivity of final resistance pattern, but the ratio of diluent in coating will influence the thickness of printed resistor figure, and the resistance of the formed resistance pattern of remote-effects.When adopting water to make diluent, also an amount of drier can be added in coating, as gypsum or white cement.
B) dielectric substrate is prepared into specific size and dimension, forms resistance pattern so that apply deployed coating thereon.
C) carry out the preparation of figure according to different application pattern, wherein alternative application pattern comprises: mode of printing, impregnation method, spraying method.Need to make earlier the graphic boards of printing reliefs therefrom or silk screen printing when adopting mode of printing by predetermined pattern.Then need when adopting impregnation method on dielectric substrate, to make masking graphics with suitable material as lacquer or paraffin etc. earlier by required figure.Then need during with spraying method to make mask plate by required figure earlier.The design of figure will guarantee the resistance that formed resistance reaches to be needed, and on substrate, has a rational distribution, figure can be designed to straight line or curved conductive strips, different resistance values can realize by the length and the width that change conductive strips, also can realize by repeating to apply the thickness that changes conductive strips.
D) can on the appropriate location of substrate figure, make metal electrode before or after the applying coatings as the line end, the line end can be attached to sheet metal on the precalculated position with mounting method, the conventional method of also available manufacturing printed substrate is made metal electrode, and it also can be a plurality of that the number of electrode can be two.
E) figure of preparing according to step c) adopts the suitable mode applying coating that step a) is deployed on the dielectric substrate that step b) prepares, and the one side that formation resistance pattern, resistance pattern can substrates is made, and also can make on the two sides.
F) before applying coatings, or after coating and before the coating drying substrate formed specific shape to satisfy different needs, coating and shaping also can be carried out simultaneously when adopting printing machinery.
G) after resistance pattern is made, can on resistive layer, use as required insulating varnish or with warps such as plastic film, glass fabric suitably adhesive encapsulate to reach sealing, insulation and/or decorative effect.
Said printed resistor comprises the resistance of making by above-mentioned steps with above-mentioned mode of printing, spraying method, impregnation method or other machinery or manual mode among the present invention.
Printed resistor of the present invention has following advantage:
The material category that can Gong select for use is many, price is low, can satisfy various different purposes and environment requirement:
Adoptable method is simple, easily manufactured, be suitable for producing in enormous quantities;
The figure of printed resistor and the size and dimension of dielectric substrate can carry out various design, and satisfying various requirement, thereby its purposes is wider;
Because the surface area of printed resistor is bigger, area of dissipation is big when work, is suitable for as electric energy-thermal power transfer device;
Adopt printing process to carry out incrustation with different design and colors to the printed circuit of making very easily;
Further advantage of the present invention and good effect will progressively show in below in conjunction with the explanation of accompanying drawing to different embodiments, in the accompanying drawings:
Figure 1A is the floor map of the printed resistor made of the method according to this invention;
Figure 1B is the sectional view that the 1B-1B along the line of the printed resistor shown in Figure 1A is cut open;
Fig. 2 is the resistance pattern schematic diagram of printed resistor of the present invention as fluorescent lamp ballast; With
Fig. 3 is the schematic diagram of printed resistor of the present invention as electric resistance array or electric calorifie installation;
It shown in Figure 1A the printed resistor that the method according to this invention is made.In Figure 1A, numeral 1 indicates dielectric substrate, and numeral 2 indicates the resistance pattern that applies with coating of the present invention, and numeral 3 is a metal electrode, C
1And C
2Be respectively two line ends of this resistance.Figure 1B is the sectional view along Figure 1A center line section that 1B-1B does, and numeral 4 indicates the encapsulated layer that covers after printed resistor is made thereon among the figure, with the purpose that reaches insulation, sealing and decorate.
Printed resistor shown in Figure 1A is at C
1And C
2Resistance value between both ends depends on thickness, width and the length of the prescription and the printed pattern of printing coatings, if adopt graphite+waterglass+water to be made into printing coatings, formula rate is:
Graphite: waterglass: water=2.5(g): 1.5(ml): 2.5(ml)
Be coated in after the coating of aforementioned proportion stirred on the substrate that water board makes, making length is that 200Cm, width are that 4.5Cm, thickness are the resistance pattern of 0.05mm, two ends as electrode, are about 2.5K Ω in actual measurement resistance value behind the coating bone dry with aluminium flake.Be understood that, by changing the prescription of coating, as reduce the ratio of graphite or replace graphite partially with other nonconducting particle such as land plaster, white cement or pigment, resistance is increased, and increase the ratio of graphite or increase other an amount of conductive particle in addition again, as metal dust etc. resistance value is reduced.Same length, width and the thickness that changes resistance pattern also can change resistance value, in actual applications can be by repeatedly apply the thickness that increases coating on same figure.Change under the very little situation in the resistance pattern area occupied like this, can obtain interior in a big way change in resistance.Printed resistor also can be in the preparation of the two sides of substrate in the practical application.
Printed resistor shown in Figure 1 can be used as independent resistive element, also a plurality of similar resistance can be prepared simultaneously on same bar printing wiring board or terminal block, replaces discrete component resistance conventional in electronic circuit or the power circuit.By changing resistance pattern, or with the different coating of filling a prescription through repeatedly chromatography, can on same circuit board, make the printed resistor of a plurality of different resistances.
Figure 2 shows that another embodiment of the present invention, can on less area, obtain relatively large resistance value with mode of composition shown in Figure 2.Printed resistor shown in Figure 2 can replace conventional inductance type ballast and resistance-capacitance type ballast as the ballast of fluorescent lamp.
Figure 3 shows that another embodiment of the present invention, C in Fig. 3
1-C
6Be six metal connecting line ends,, can obtain different resistances, as with C by each line end is connected differently at diverse location
3And C
4Short circuit, C
1And C
2Between resistance value reach maximum, and with C
1-C
4Short circuit is together as an end and C
5And C
6Short circuit is together as the other end, and then equivalent resistance reaches minimum between two ends, with the layout of similar composition and link, can obtain different electric resistance arrays easily.Because the resistance of printed resistor is relevant with resistance pattern, the accurate design configuration size of process also applies equably, can make electric resistance array resistance ratio under different connected modes more accurate.
Structure shown in Figure 3 also can be used as electric energy-thermal energy conversion device (hereinafter to be referred as electric calorifie installation) easily, because the area of dissipation of printed resistor is big, through reasonable Arrangement resistance pattern on substrate, can realize the larger area Homogeneouslly-radiating and heat savings when printed resistor itself has been avoided work.Particularly adopt thin substrate through two sides composition on intervening portion, can on entire substrate, realize electricity-thermal conversion highly uniformly.And because the heat savings is few, even when whole electric calorifie installation power is big, the local temperature on the substrate can excessively not increase (can remain on below 50 ℃) yet, and it is not high to the requirement of material therefore to make this type of electrical thermic devices.In the application that needs higher temperature, can adopt resistant to elevated temperatures adhesive, as waterglass and resistant to elevated temperatures substrate,, also several printed resistor plates can be superimposed together and use to reach higher temperature (as 50 °-200 ℃) as asbestos board, plasterboard and glass mat etc.In addition, by the change of connected mode between different joints, can make same electric calorifie installation change power easily.This electric calorifie installation can be used in the different environment and purposes, constant as in low temperature environment, keeping the working temperature of precision instrument, replace electric furnace to be used for the life heating, can make the uniform baking oven of temperature, baking box or drying chamber, or be used in other in the laboratory and house of ambient temperature requirement than strictness.In addition, this embodiment of the present invention can combine with wall body structure and interior decoration in the building construction process easily, thereby further reduces cost and mounting cost.Because this electric calorifie installation temperature is even, rapid heat dissipation, the heat savings is few, and the insulation on its surface and sealing are just carried out easily, and be convenient to carry out with material in various manners the decoration of shades of colour and pattern on its surface, make this device not only can be used for the electric heating conversion but also can be used for beautifying the environment.
Above-described each embodiment is only as exemplary illustration of the present invention, and the skilled person in this area is not difficult it is carried out various forms of modifications and changes, and scope of the present invention is by later on appended claim decision.
Claims (12)
1, a kind of resistance, comprising the conductive particle adhesive, it is characterized in that said mixture by certain figure attached to forming conductive layer on the dielectric substrate, and on the predetermined position of above-mentioned conductive layer, pick out the metal connection end; The resistance value of above-mentioned conductive layer depends on the geometry of above-mentioned figure, the thickness of conductive layer and the ratio of conductive particle and adhesive.
2, according to the resistance of claim 1, wherein said conductive particle can adopt carbon granule, metal dust or their mixture, and described adhesive can adopt resin binder, pitch or waterglass.
3, according to the resistance of claim 1, wherein further comprise
Encapsulated layer on described dielectric substrate and conductive layer.
4, a kind of electric energy-thermal energy conversion device comprises:
1) dielectric substrate;
2) on above-mentioned dielectric substrate by the coating of certain figure, the resistive layer that constitutes by conductive particle and adhesive;
3) on the specific part of above-mentioned resistive layer, pick out a plurality of metal connection ends;
It is characterized in that:
Behind above-mentioned metal connection end and power connection, above-mentioned resistive layer discharges heat equably.
5, according to the electric energy-thermal energy conversion device of claim 4, wherein said resistive layer is to constitute by staggered figure on the two sides of dielectric substrate.
6, according to the electric energy-thermal energy conversion device of claim 4, wherein said resistive layer is to arrange in the one side of dielectric substrate.
7, according to the electric energy-thermal energy conversion device of claim 4, the dielectric substrate that wherein has above-mentioned resistive layer can be made into arbitrary shape.
8, according to the electric energy-thermal energy conversion device of claim 4, wherein the number of metal connection end is more than three, the power the when mode of connection that changes this device can change work.
9, a kind of fluorescent lamp ballast is characterized in that comprising
1) dielectric substrate;
2) on above-mentioned substrate by the coating of certain figure, the resistive layer that constitutes by conductive particle and adhesive;
3) specific part picks out a plurality of metal connection ends on above-mentioned resistive layer.
10, according to the ballast of claim 9, above-mentioned conductive particle is a graphite, and adhesive is a waterglass.
11, according to the ballast of claim 9, add encapsulated layer at above-mentioned conductive layer.
12,, pattern or color are arranged on the above-mentioned encapsulated layer according to the ballast of claim 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202831 CN85202831U (en) | 1985-07-11 | 1985-07-11 | Printed electric resistance |
| EP85110374A EP0208808A1 (en) | 1985-07-11 | 1985-08-19 | Printed resistor, method for making same and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202831 CN85202831U (en) | 1985-07-11 | 1985-07-11 | Printed electric resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85202831U true CN85202831U (en) | 1987-05-20 |
Family
ID=4798547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85202831 Expired - Lifetime CN85202831U (en) | 1985-07-11 | 1985-07-11 | Printed electric resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85202831U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107988C (en) * | 1994-03-15 | 2003-05-07 | 艾利森公司 | Rechargeable buttery pack with identification circuit, real time clock and authentication capability |
| CN108709170A (en) * | 2018-07-31 | 2018-10-26 | 江门黑氪光电科技有限公司 | A kind of LED support from strip resistance |
| CN108735886A (en) * | 2018-07-31 | 2018-11-02 | 江门黑氪光电科技有限公司 | A kind of LED from strip resistance |
| CN113696604A (en) * | 2021-08-04 | 2021-11-26 | 益阳市明正宏电子有限公司 | Method for manufacturing PCB with same panel with high carbon resistance/low carbon resistance |
-
1985
- 1985-07-11 CN CN 85202831 patent/CN85202831U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107988C (en) * | 1994-03-15 | 2003-05-07 | 艾利森公司 | Rechargeable buttery pack with identification circuit, real time clock and authentication capability |
| CN108709170A (en) * | 2018-07-31 | 2018-10-26 | 江门黑氪光电科技有限公司 | A kind of LED support from strip resistance |
| CN108735886A (en) * | 2018-07-31 | 2018-11-02 | 江门黑氪光电科技有限公司 | A kind of LED from strip resistance |
| CN113696604A (en) * | 2021-08-04 | 2021-11-26 | 益阳市明正宏电子有限公司 | Method for manufacturing PCB with same panel with high carbon resistance/low carbon resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |